American Superconductor Corp NASDAQ:AMSC Historical Prices

Below are the 8000 trading days of historical prices for AMSC.

#	Exchange	Symbol	Date	Open	High	Low	Close
8000	NASDAQ	AMSC	Tue, Mar 5, 2024	13.59	13.95	13.59	13.95
7999	NASDAQ	AMSC	Mon, Mar 4, 2024	15.06	15.24	13.43	14.35
7998	NASDAQ	AMSC	Fri, Mar 1, 2024	13.51	13.85	13.13	13.71
7997	NASDAQ	AMSC	Thu, Feb 29, 2024	13.30	14.18	13.23	13.45
7996	NASDAQ	AMSC	Wed, Feb 28, 2024	13.14	13.47	13.01	13.06
7995	NASDAQ	AMSC	Tue, Feb 27, 2024	13.49	13.65	13.19	13.23
7994	NASDAQ	AMSC	Mon, Feb 26, 2024	12.80	13.40	12.75	13.29
7993	NASDAQ	AMSC	Fri, Feb 23, 2024	13.05	13.05	12.64	12.84
7992	NASDAQ	AMSC	Thu, Feb 22, 2024	13.41	13.59	13.04	13.04
7991	NASDAQ	AMSC	Wed, Feb 21, 2024	13.07	13.60	12.73	13.21
7990	NASDAQ	AMSC	Tue, Feb 20, 2024	14.07	14.10	12.93	13.27
7989	NASDAQ	AMSC	Fri, Feb 16, 2024	14.23	14.65	13.87	14.28
7988	NASDAQ	AMSC	Thu, Feb 15, 2024	14.43	14.50	13.91	14.37
7987	NASDAQ	AMSC	Wed, Feb 14, 2024	13.13	14.49	13.02	14.44
7986	NASDAQ	AMSC	Tue, Feb 13, 2024	12.58	12.82	12.12	12.71
7985	NASDAQ	AMSC	Mon, Feb 12, 2024	11.57	13.21	11.50	13.03
7984	NASDAQ	AMSC	Fri, Feb 9, 2024	11.06	11.37	10.99	11.31
7983	NASDAQ	AMSC	Thu, Feb 8, 2024	10.29	11.07	10.21	10.93
7982	NASDAQ	AMSC	Wed, Feb 7, 2024	10.71	10.71	10.19	10.28
7981	NASDAQ	AMSC	Tue, Feb 6, 2024	11.00	11.00	10.47	10.59
7980	NASDAQ	AMSC	Mon, Feb 5, 2024	11.00	11.31	10.89	10.99
7979	NASDAQ	AMSC	Fri, Feb 2, 2024	11.25	11.27	10.92	11.17
7978	NASDAQ	AMSC	Thu, Feb 1, 2024	11.15	11.42	11.10	11.31
7977	NASDAQ	AMSC	Wed, Jan 31, 2024	11.50	11.50	10.75	11.00
7976	NASDAQ	AMSC	Tue, Jan 30, 2024	13.50	14.30	13.36	13.44
7975	NASDAQ	AMSC	Mon, Jan 29, 2024	13.70	13.90	13.07	13.64
7974	NASDAQ	AMSC	Fri, Jan 26, 2024	13.45	14.70	13.03	13.77
7973	NASDAQ	AMSC	Thu, Jan 25, 2024	12.57	13.80	11.00	13.25
7972	NASDAQ	AMSC	Wed, Jan 24, 2024	10.25	10.25	9.68	9.75
7971	NASDAQ	AMSC	Tue, Jan 23, 2024	10.17	10.33	10.01	10.03
7970	NASDAQ	AMSC	Mon, Jan 22, 2024	9.83	10.19	9.77	10.03
7969	NASDAQ	AMSC	Fri, Jan 19, 2024	9.77	9.79	9.44	9.67
7968	NASDAQ	AMSC	Thu, Jan 18, 2024	10.40	10.49	9.37	9.75
7967	NASDAQ	AMSC	Wed, Jan 17, 2024	9.70	10.92	9.67	10.24
7966	NASDAQ	AMSC	Tue, Jan 16, 2024	10.04	10.09	9.64	9.72
7965	NASDAQ	AMSC	Fri, Jan 12, 2024	10.19	10.30	9.95	10.11
7964	NASDAQ	AMSC	Thu, Jan 11, 2024	10.39	10.39	9.73	10.06
7963	NASDAQ	AMSC	Wed, Jan 10, 2024	10.22	10.68	10.13	10.39
7962	NASDAQ	AMSC	Tue, Jan 9, 2024	10.54	10.55	10.18	10.22
7961	NASDAQ	AMSC	Mon, Jan 8, 2024	11.41	11.41	10.71	10.79
7960	NASDAQ	AMSC	Fri, Jan 5, 2024	11.20	11.65	11.19	11.43
7959	NASDAQ	AMSC	Thu, Jan 4, 2024	11.01	11.76	10.73	11.34
7958	NASDAQ	AMSC	Wed, Jan 3, 2024	10.58	10.94	10.17	10.91
7957	NASDAQ	AMSC	Tue, Jan 2, 2024	10.90	11.15	10.60	10.84
7956	NASDAQ	AMSC	Fri, Dec 29, 2023	11.39	11.60	10.90	11.14
7955	NASDAQ	AMSC	Thu, Dec 28, 2023	11.68	11.81	11.37	11.45
7954	NASDAQ	AMSC	Wed, Dec 27, 2023	11.44	11.67	11.36	11.66
7953	NASDAQ	AMSC	Tue, Dec 26, 2023	11.04	11.50	11.00	11.40
7952	NASDAQ	AMSC	Fri, Dec 22, 2023	10.66	11.14	10.65	11.06
7951	NASDAQ	AMSC	Thu, Dec 21, 2023	10.38	10.60	10.37	10.53
7950	NASDAQ	AMSC	Wed, Dec 20, 2023	10.91	10.91	10.14	10.20
7949	NASDAQ	AMSC	Tue, Dec 19, 2023	10.99	11.13	10.90	11.04
7948	NASDAQ	AMSC	Mon, Dec 18, 2023	11.11	11.40	10.72	10.80
7947	NASDAQ	AMSC	Fri, Dec 15, 2023	11.02	11.22	10.80	11.15
7946	NASDAQ	AMSC	Thu, Dec 14, 2023	11.00	11.40	10.85	10.99
7945	NASDAQ	AMSC	Wed, Dec 13, 2023	10.46	10.99	10.40	10.92
7944	NASDAQ	AMSC	Tue, Dec 12, 2023	10.14	10.46	9.87	10.46
7943	NASDAQ	AMSC	Mon, Dec 11, 2023	10.03	10.38	9.92	10.21
7942	NASDAQ	AMSC	Fri, Dec 8, 2023	9.86	10.05	9.60	10.00
7941	NASDAQ	AMSC	Thu, Dec 7, 2023	9.90	10.08	9.70	9.94
7940	NASDAQ	AMSC	Wed, Dec 6, 2023	9.89	10.06	9.73	9.90
7939	NASDAQ	AMSC	Tue, Dec 5, 2023	9.78	10.13	9.72	9.95
7938	NASDAQ	AMSC	Mon, Dec 4, 2023	9.55	9.92	9.55	9.86
7937	NASDAQ	AMSC	Fri, Dec 1, 2023	9.31	9.80	9.22	9.78
7936	NASDAQ	AMSC	Thu, Nov 30, 2023	9.34	9.80	9.18	9.46
7935	NASDAQ	AMSC	Wed, Nov 29, 2023	8.94	9.30	8.82	9.25
7934	NASDAQ	AMSC	Tue, Nov 28, 2023	8.80	8.92	8.56	8.84
7933	NASDAQ	AMSC	Mon, Nov 27, 2023	9.30	9.30	8.85	8.95
7932	NASDAQ	AMSC	Fri, Nov 24, 2023	8.93	9.39	8.82	9.36
7931	NASDAQ	AMSC	Wed, Nov 22, 2023	8.92	9.17	8.86	8.98
7930	NASDAQ	AMSC	Tue, Nov 21, 2023	9.17	9.31	8.81	8.83
7929	NASDAQ	AMSC	Mon, Nov 20, 2023	9.27	9.45	9.03	9.36
7928	NASDAQ	AMSC	Fri, Nov 17, 2023	9.11	9.37	9.00	9.26
7927	NASDAQ	AMSC	Thu, Nov 16, 2023	8.86	9.13	8.72	9.09
7926	NASDAQ	AMSC	Wed, Nov 15, 2023	8.96	9.28	8.87	8.91
7925	NASDAQ	AMSC	Tue, Nov 14, 2023	8.50	8.98	8.38	8.95
7924	NASDAQ	AMSC	Mon, Nov 13, 2023	7.67	8.26	7.64	8.22
7923	NASDAQ	AMSC	Fri, Nov 10, 2023	7.99	7.99	7.53	7.73
7922	NASDAQ	AMSC	Thu, Nov 9, 2023	8.21	8.32	7.80	7.96
7921	NASDAQ	AMSC	Wed, Nov 8, 2023	8.14	8.20	7.92	8.13
7920	NASDAQ	AMSC	Tue, Nov 7, 2023	7.64	8.11	7.37	8.10
7919	NASDAQ	AMSC	Mon, Nov 6, 2023	7.76	7.83	7.60	7.75
7918	NASDAQ	AMSC	Fri, Nov 3, 2023	7.42	7.82	7.42	7.75
7917	NASDAQ	AMSC	Thu, Nov 2, 2023	7.25	7.28	6.73	7.26
7916	NASDAQ	AMSC	Wed, Nov 1, 2023	6.54	6.70	6.08	6.40
7915	NASDAQ	AMSC	Tue, Oct 31, 2023	6.17	6.30	6.10	6.27
7914	NASDAQ	AMSC	Mon, Oct 30, 2023	6.30	6.39	6.05	6.22
7913	NASDAQ	AMSC	Fri, Oct 27, 2023	6.26	6.30	6.08	6.21
7912	NASDAQ	AMSC	Thu, Oct 26, 2023	6.13	6.41	6.11	6.22
7911	NASDAQ	AMSC	Wed, Oct 25, 2023	6.24	6.25	6.08	6.14
7910	NASDAQ	AMSC	Tue, Oct 24, 2023	6.24	6.54	6.20	6.27
7909	NASDAQ	AMSC	Mon, Oct 23, 2023	5.91	5.96	5.78	5.83
7908	NASDAQ	AMSC	Fri, Oct 20, 2023	6.00	6.09	5.95	6.02
7907	NASDAQ	AMSC	Thu, Oct 19, 2023	6.17	6.23	6.02	6.08
7906	NASDAQ	AMSC	Wed, Oct 18, 2023	6.32	6.34	6.12	6.18
7905	NASDAQ	AMSC	Tue, Oct 17, 2023	6.16	6.60	6.16	6.46
7904	NASDAQ	AMSC	Mon, Oct 16, 2023	6.37	6.42	6.19	6.21
7903	NASDAQ	AMSC	Fri, Oct 13, 2023	6.40	6.44	6.29	6.33
7902	NASDAQ	AMSC	Thu, Oct 12, 2023	6.76	6.76	6.31	6.41
7901	NASDAQ	AMSC	Wed, Oct 11, 2023	6.81	6.94	6.72	6.80
7900	NASDAQ	AMSC	Tue, Oct 10, 2023	6.44	6.91	6.31	6.83
7899	NASDAQ	AMSC	Mon, Oct 9, 2023	6.73	6.80	6.28	6.53
7898	NASDAQ	AMSC	Fri, Oct 6, 2023	6.72	7.04	6.70	6.89
7897	NASDAQ	AMSC	Thu, Oct 5, 2023	6.87	6.88	6.68	6.80
7896	NASDAQ	AMSC	Wed, Oct 4, 2023	6.92	7.02	6.77	6.90
7895	NASDAQ	AMSC	Tue, Oct 3, 2023	7.16	7.30	6.77	6.89
7894	NASDAQ	AMSC	Mon, Oct 2, 2023	7.49	7.64	7.16	7.21
7893	NASDAQ	AMSC	Fri, Sep 29, 2023	7.65	7.65	7.48	7.55
7892	NASDAQ	AMSC	Thu, Sep 28, 2023	7.46	7.70	7.38	7.50
7891	NASDAQ	AMSC	Wed, Sep 27, 2023	7.43	7.52	7.31	7.50
7890	NASDAQ	AMSC	Tue, Sep 26, 2023	7.37	7.68	7.00	7.28
7889	NASDAQ	AMSC	Mon, Sep 25, 2023	7.45	7.60	7.35	7.47
7888	NASDAQ	AMSC	Fri, Sep 22, 2023	7.61	7.97	7.57	7.62
7887	NASDAQ	AMSC	Thu, Sep 21, 2023	7.38	7.67	7.29	7.59
7886	NASDAQ	AMSC	Wed, Sep 20, 2023	7.65	7.75	7.50	7.57
7885	NASDAQ	AMSC	Tue, Sep 19, 2023	7.65	7.88	7.63	7.66
7884	NASDAQ	AMSC	Mon, Sep 18, 2023	7.68	7.89	7.49	7.79
7883	NASDAQ	AMSC	Fri, Sep 15, 2023	7.55	7.76	7.55	7.72
7882	NASDAQ	AMSC	Thu, Sep 14, 2023	7.72	7.74	7.52	7.61
7881	NASDAQ	AMSC	Wed, Sep 13, 2023	7.69	7.88	7.50	7.56
7880	NASDAQ	AMSC	Tue, Sep 12, 2023	7.87	7.96	7.63	7.73
7879	NASDAQ	AMSC	Mon, Sep 11, 2023	7.92	7.92	7.92	7.92
7878	NASDAQ	AMSC	Fri, Sep 8, 2023	8.14	8.19	7.92	8.06
7877	NASDAQ	AMSC	Thu, Sep 7, 2023	8.24	8.32	7.91	8.17
7876	NASDAQ	AMSC	Wed, Sep 6, 2023	8.78	8.95	8.36	8.39
7875	NASDAQ	AMSC	Tue, Sep 5, 2023	9.19	9.31	8.56	8.73
7874	NASDAQ	AMSC	Fri, Sep 1, 2023	9.40	9.60	9.25	9.36
7873	NASDAQ	AMSC	Thu, Aug 31, 2023	9.66	9.87	9.03	9.25
7872	NASDAQ	AMSC	Wed, Aug 30, 2023	9.55	9.76	9.16	9.66
7871	NASDAQ	AMSC	Tue, Aug 29, 2023	9.20	9.77	9.01	9.53
7870	NASDAQ	AMSC	Mon, Aug 28, 2023	8.86	9.32	8.85	9.26
7869	NASDAQ	AMSC	Fri, Aug 25, 2023	8.76	9.14	8.68	8.93
7868	NASDAQ	AMSC	Thu, Aug 24, 2023	9.22	9.26	8.66	8.67
7867	NASDAQ	AMSC	Wed, Aug 23, 2023	8.99	9.44	8.91	9.27
7866	NASDAQ	AMSC	Tue, Aug 22, 2023	9.28	9.39	8.68	9.05
7865	NASDAQ	AMSC	Mon, Aug 21, 2023	8.71	9.21	8.65	9.07
7864	NASDAQ	AMSC	Fri, Aug 18, 2023	8.26	8.91	8.19	8.65
7863	NASDAQ	AMSC	Thu, Aug 17, 2023	8.62	8.85	8.37	8.62
7862	NASDAQ	AMSC	Wed, Aug 16, 2023	9.13	9.70	8.81	8.93
7861	NASDAQ	AMSC	Tue, Aug 15, 2023	9.75	9.83	8.98	8.99
7860	NASDAQ	AMSC	Mon, Aug 14, 2023	8.90	10.22	8.75	10.07
7859	NASDAQ	AMSC	Fri, Aug 11, 2023	9.46	9.58	8.65	8.77
7858	NASDAQ	AMSC	Thu, Aug 10, 2023	8.10	9.72	8.03	9.68
7857	NASDAQ	AMSC	Wed, Aug 9, 2023	8.44	8.85	8.22	8.54
7856	NASDAQ	AMSC	Tue, Aug 8, 2023	8.73	9.40	8.45	8.70
7855	NASDAQ	AMSC	Mon, Aug 7, 2023	10.30	10.52	8.88	10.05
7854	NASDAQ	AMSC	Fri, Aug 4, 2023	10.16	12.19	9.75	10.31
7853	NASDAQ	AMSC	Thu, Aug 3, 2023	9.82	11.28	9.59	9.60
7852	NASDAQ	AMSC	Wed, Aug 2, 2023	15.64	15.78	10.82	11.46
7851	NASDAQ	AMSC	Tue, Aug 1, 2023	16.00	17.37	13.31	16.13
7850	NASDAQ	AMSC	Mon, Jul 31, 2023	10.09	11.19	9.59	10.08
7849	NASDAQ	AMSC	Fri, Jul 28, 2023	9.21	11.63	8.65	9.84
7848	NASDAQ	AMSC	Thu, Jul 27, 2023	7.96	9.15	7.71	8.45
7847	NASDAQ	AMSC	Wed, Jul 26, 2023	7.37	7.73	7.17	7.51
7846	NASDAQ	AMSC	Tue, Jul 25, 2023	7.35	7.37	6.97	7.03
7845	NASDAQ	AMSC	Mon, Jul 24, 2023	7.39	7.59	7.04	7.33
7844	NASDAQ	AMSC	Fri, Jul 21, 2023	7.04	7.42	6.89	7.31
7843	NASDAQ	AMSC	Thu, Jul 20, 2023	7.53	7.53	7.02	7.06
7842	NASDAQ	AMSC	Wed, Jul 19, 2023	7.84	7.89	7.05	7.51
7841	NASDAQ	AMSC	Tue, Jul 18, 2023	7.05	8.30	7.01	7.80
7840	NASDAQ	AMSC	Mon, Jul 17, 2023	6.50	6.90	6.50	6.72
7839	NASDAQ	AMSC	Fri, Jul 14, 2023	6.63	6.67	6.40	6.55
7838	NASDAQ	AMSC	Thu, Jul 13, 2023	6.92	6.98	6.61	6.68
7837	NASDAQ	AMSC	Wed, Jul 12, 2023	6.88	6.94	6.76	6.80
7836	NASDAQ	AMSC	Tue, Jul 11, 2023	6.75	6.84	6.58	6.70
7835	NASDAQ	AMSC	Mon, Jul 10, 2023	6.32	6.71	6.26	6.70
7834	NASDAQ	AMSC	Fri, Jul 7, 2023	6.02	6.31	6.02	6.26
7833	NASDAQ	AMSC	Thu, Jul 6, 2023	6.10	6.11	5.75	6.06
7832	NASDAQ	AMSC	Wed, Jul 5, 2023	6.34	6.36	5.99	6.20
7831	NASDAQ	AMSC	Mon, Jul 3, 2023	6.12	6.40	6.08	6.34
7830	NASDAQ	AMSC	Fri, Jun 30, 2023	6.20	6.33	6.01	6.26
7829	NASDAQ	AMSC	Thu, Jun 29, 2023	6.09	6.35	5.95	6.06
7828	NASDAQ	AMSC	Wed, Jun 28, 2023	5.54	6.13	5.54	6.08
7827	NASDAQ	AMSC	Tue, Jun 27, 2023	5.60	5.62	5.25	5.59
7826	NASDAQ	AMSC	Mon, Jun 26, 2023	5.82	6.00	5.60	5.60
7825	NASDAQ	AMSC	Fri, Jun 23, 2023	5.80	5.94	5.75	5.87
7824	NASDAQ	AMSC	Thu, Jun 22, 2023	6.00	6.09	5.72	5.98
7823	NASDAQ	AMSC	Wed, Jun 21, 2023	6.32	6.35	6.07	6.10
7822	NASDAQ	AMSC	Tue, Jun 20, 2023	6.56	6.58	6.11	6.32
7821	NASDAQ	AMSC	Fri, Jun 16, 2023	6.90	6.90	6.60	6.72
7820	NASDAQ	AMSC	Thu, Jun 15, 2023	6.69	7.08	6.66	6.79
7819	NASDAQ	AMSC	Wed, Jun 14, 2023	7.30	7.58	6.64	6.77
7818	NASDAQ	AMSC	Tue, Jun 13, 2023	6.60	7.22	6.60	7.22
7817	NASDAQ	AMSC	Mon, Jun 12, 2023	5.62	6.83	5.51	6.48
7816	NASDAQ	AMSC	Fri, Jun 9, 2023	6.29	6.45	6.09	6.15
7815	NASDAQ	AMSC	Thu, Jun 8, 2023	6.00	6.47	5.95	6.28
7814	NASDAQ	AMSC	Wed, Jun 7, 2023	6.86	6.86	5.90	6.02
7813	NASDAQ	AMSC	Tue, Jun 6, 2023	6.37	6.90	6.16	6.67
7812	NASDAQ	AMSC	Mon, Jun 5, 2023	6.32	6.70	6.01	6.50
7811	NASDAQ	AMSC	Fri, Jun 2, 2023	5.55	6.25	5.44	6.08
7810	NASDAQ	AMSC	Thu, Jun 1, 2023	4.69	5.37	4.42	5.32
7809	NASDAQ	AMSC	Wed, May 31, 2023	4.47	4.75	4.11	4.69
7808	NASDAQ	AMSC	Tue, May 30, 2023	4.07	4.36	4.02	4.24
7807	NASDAQ	AMSC	Fri, May 26, 2023	4.00	4.09	3.92	4.01
7806	NASDAQ	AMSC	Thu, May 25, 2023	4.19	4.19	3.97	3.99
7805	NASDAQ	AMSC	Wed, May 24, 2023	4.24	4.25	4.06	4.19
7804	NASDAQ	AMSC	Tue, May 23, 2023	4.28	4.58	4.27	4.28
7803	NASDAQ	AMSC	Mon, May 22, 2023	4.01	4.31	4.00	4.26
7802	NASDAQ	AMSC	Fri, May 19, 2023	4.49	4.57	4.12	4.19
7801	NASDAQ	AMSC	Thu, May 18, 2023	4.60	4.74	4.47	4.49
7800	NASDAQ	AMSC	Wed, May 17, 2023	4.53	4.65	4.36	4.61
7799	NASDAQ	AMSC	Tue, May 16, 2023	4.31	4.54	4.31	4.48
7798	NASDAQ	AMSC	Mon, May 15, 2023	4.24	4.38	4.16	4.33
7797	NASDAQ	AMSC	Fri, May 12, 2023	4.43	4.47	4.17	4.27
7796	NASDAQ	AMSC	Thu, May 11, 2023	4.29	4.46	4.29	4.41
7795	NASDAQ	AMSC	Wed, May 10, 2023	4.20	4.38	4.12	4.34
7794	NASDAQ	AMSC	Tue, May 9, 2023	3.95	4.16	3.95	4.10
7793	NASDAQ	AMSC	Mon, May 8, 2023	3.91	3.93	3.71	3.90
7792	NASDAQ	AMSC	Fri, May 5, 2023	3.76	4.00	3.71	3.90
7791	NASDAQ	AMSC	Thu, May 4, 2023	3.97	3.97	3.63	3.70
7790	NASDAQ	AMSC	Wed, May 3, 2023	4.01	4.13	3.92	3.92
7789	NASDAQ	AMSC	Tue, May 2, 2023	4.03	4.15	3.94	3.99
7788	NASDAQ	AMSC	Mon, May 1, 2023	4.03	4.24	3.98	4.02
7787	NASDAQ	AMSC	Fri, Apr 28, 2023	4.02	4.11	3.98	4.05
7786	NASDAQ	AMSC	Thu, Apr 27, 2023	4.02	4.18	4.00	4.07
7785	NASDAQ	AMSC	Wed, Apr 26, 2023	3.93	4.04	3.88	3.99
7784	NASDAQ	AMSC	Tue, Apr 25, 2023	4.00	4.14	3.96	3.96
7783	NASDAQ	AMSC	Mon, Apr 24, 2023	4.04	4.09	3.95	4.07
7782	NASDAQ	AMSC	Fri, Apr 21, 2023	4.06	4.11	4.01	4.04
7781	NASDAQ	AMSC	Thu, Apr 20, 2023	4.11	4.15	4.02	4.04
7780	NASDAQ	AMSC	Wed, Apr 19, 2023	4.22	4.22	4.14	4.17
7779	NASDAQ	AMSC	Tue, Apr 18, 2023	4.55	4.65	4.24	4.25
7778	NASDAQ	AMSC	Mon, Apr 17, 2023	4.24	4.51	4.22	4.47
7777	NASDAQ	AMSC	Fri, Apr 14, 2023	4.27	4.27	4.08	4.23
7776	NASDAQ	AMSC	Thu, Apr 13, 2023	4.11	4.40	4.11	4.28
7775	NASDAQ	AMSC	Wed, Apr 12, 2023	4.30	4.36	4.05	4.07
7774	NASDAQ	AMSC	Tue, Apr 11, 2023	4.16	4.37	4.16	4.26
7773	NASDAQ	AMSC	Mon, Apr 10, 2023	3.96	4.18	3.93	4.13
7772	NASDAQ	AMSC	Thu, Apr 6, 2023	3.98	4.03	3.87	4.00
7771	NASDAQ	AMSC	Wed, Apr 5, 2023	4.24	4.35	3.88	3.97
7770	NASDAQ	AMSC	Tue, Apr 4, 2023	4.69	4.94	4.30	4.30
7769	NASDAQ	AMSC	Mon, Apr 3, 2023	4.89	4.98	4.55	4.68
7768	NASDAQ	AMSC	Fri, Mar 31, 2023	4.83	4.97	4.78	4.91
7767	NASDAQ	AMSC	Thu, Mar 30, 2023	4.57	4.87	4.56	4.77
7766	NASDAQ	AMSC	Wed, Mar 29, 2023	4.33	4.53	4.23	4.47
7765	NASDAQ	AMSC	Tue, Mar 28, 2023	4.20	4.36	4.20	4.25
7764	NASDAQ	AMSC	Mon, Mar 27, 2023	4.20	4.27	4.09	4.23
7763	NASDAQ	AMSC	Fri, Mar 24, 2023	4.03	4.18	3.94	4.11
7762	NASDAQ	AMSC	Thu, Mar 23, 2023	4.25	4.36	4.09	4.13
7761	NASDAQ	AMSC	Wed, Mar 22, 2023	4.31	4.43	4.20	4.22
7760	NASDAQ	AMSC	Tue, Mar 21, 2023	4.14	4.33	4.14	4.28
7759	NASDAQ	AMSC	Mon, Mar 20, 2023	4.24	4.35	4.09	4.10
7758	NASDAQ	AMSC	Fri, Mar 17, 2023	4.62	4.62	4.25	4.27
7757	NASDAQ	AMSC	Thu, Mar 16, 2023	4.50	4.66	4.42	4.64
7756	NASDAQ	AMSC	Wed, Mar 15, 2023	4.73	4.78	4.50	4.59
7755	NASDAQ	AMSC	Tue, Mar 14, 2023	5.04	5.10	4.79	4.88
7754	NASDAQ	AMSC	Mon, Mar 13, 2023	4.77	4.93	4.72	4.85
7753	NASDAQ	AMSC	Fri, Mar 10, 2023	5.39	5.40	4.78	4.88
7752	NASDAQ	AMSC	Thu, Mar 9, 2023	5.64	5.70	5.31	5.36
7751	NASDAQ	AMSC	Wed, Mar 8, 2023	5.31	5.68	5.29	5.62
7750	NASDAQ	AMSC	Tue, Mar 7, 2023	5.20	5.27	4.99	5.09
7749	NASDAQ	AMSC	Mon, Mar 6, 2023	5.37	5.43	5.19	5.21
7748	NASDAQ	AMSC	Fri, Mar 3, 2023	5.26	5.57	5.25	5.37
7747	NASDAQ	AMSC	Thu, Mar 2, 2023	5.29	5.30	5.10	5.24
7746	NASDAQ	AMSC	Wed, Mar 1, 2023	5.35	5.56	5.33	5.36
7745	NASDAQ	AMSC	Tue, Feb 28, 2023	5.24	5.56	5.24	5.36
7744	NASDAQ	AMSC	Mon, Feb 27, 2023	5.25	5.33	5.11	5.27
7743	NASDAQ	AMSC	Fri, Feb 24, 2023	5.25	5.31	5.10	5.25
7742	NASDAQ	AMSC	Thu, Feb 23, 2023	5.21	5.44	5.15	5.39
7741	NASDAQ	AMSC	Wed, Feb 22, 2023	5.43	5.44	5.13	5.15
7740	NASDAQ	AMSC	Tue, Feb 21, 2023	5.73	5.78	5.37	5.43
7739	NASDAQ	AMSC	Fri, Feb 17, 2023	5.82	5.97	5.69	5.87
7738	NASDAQ	AMSC	Thu, Feb 16, 2023	5.93	6.18	5.78	5.88
7737	NASDAQ	AMSC	Wed, Feb 15, 2023	5.62	6.10	5.56	6.04
7736	NASDAQ	AMSC	Tue, Feb 14, 2023	5.84	5.84	5.50	5.64
7735	NASDAQ	AMSC	Mon, Feb 13, 2023	5.72	5.93	5.72	5.83
7734	NASDAQ	AMSC	Fri, Feb 10, 2023	5.78	5.85	5.57	5.72
7733	NASDAQ	AMSC	Thu, Feb 9, 2023	6.17	6.23	5.77	5.81
7732	NASDAQ	AMSC	Wed, Feb 8, 2023	6.60	6.61	6.03	6.05
7731	NASDAQ	AMSC	Tue, Feb 7, 2023	6.44	6.57	6.24	6.57
7730	NASDAQ	AMSC	Mon, Feb 6, 2023	5.46	6.58	5.46	6.38
7729	NASDAQ	AMSC	Fri, Feb 3, 2023	5.25	5.47	5.12	5.31
7728	NASDAQ	AMSC	Thu, Feb 2, 2023	5.00	5.55	5.00	5.36
7727	NASDAQ	AMSC	Wed, Feb 1, 2023	5.48	5.64	5.21	5.63
7726	NASDAQ	AMSC	Tue, Jan 31, 2023	5.05	5.49	5.03	5.43
7725	NASDAQ	AMSC	Mon, Jan 30, 2023	5.26	5.26	5.00	5.03
7724	NASDAQ	AMSC	Fri, Jan 27, 2023	5.33	5.42	5.20	5.34
7723	NASDAQ	AMSC	Thu, Jan 26, 2023	5.51	5.51	5.19	5.33
7722	NASDAQ	AMSC	Wed, Jan 25, 2023	5.24	5.28	5.13	5.24
7721	NASDAQ	AMSC	Tue, Jan 24, 2023	5.53	5.59	5.33	5.36
7720	NASDAQ	AMSC	Mon, Jan 23, 2023	5.31	5.47	5.23	5.45
7719	NASDAQ	AMSC	Fri, Jan 20, 2023	5.56	5.64	5.16	5.33
7718	NASDAQ	AMSC	Thu, Jan 19, 2023	5.30	5.56	5.26	5.51
7717	NASDAQ	AMSC	Wed, Jan 18, 2023	5.07	5.45	5.07	5.35
7716	NASDAQ	AMSC	Tue, Jan 17, 2023	4.92	5.17	4.92	5.04
7715	NASDAQ	AMSC	Fri, Jan 13, 2023	4.66	5.09	4.66	4.83
7714	NASDAQ	AMSC	Thu, Jan 12, 2023	4.38	4.75	4.29	4.73
7713	NASDAQ	AMSC	Wed, Jan 11, 2023	4.12	4.51	4.12	4.30
7712	NASDAQ	AMSC	Tue, Jan 10, 2023	3.85	4.10	3.85	4.07
7711	NASDAQ	AMSC	Mon, Jan 9, 2023	3.70	4.01	3.70	3.87
7710	NASDAQ	AMSC	Fri, Jan 6, 2023	3.65	3.81	3.54	3.63
7709	NASDAQ	AMSC	Thu, Jan 5, 2023	3.59	3.68	3.53	3.59
7708	NASDAQ	AMSC	Wed, Jan 4, 2023	3.63	3.72	3.57	3.67
7707	NASDAQ	AMSC	Tue, Jan 3, 2023	3.73	3.84	3.55	3.58
7706	NASDAQ	AMSC	Fri, Dec 30, 2022	3.50	3.69	3.48	3.68
7705	NASDAQ	AMSC	Thu, Dec 29, 2022	3.36	3.55	3.33	3.52
7704	NASDAQ	AMSC	Wed, Dec 28, 2022	3.39	3.42	3.27	3.34
7703	NASDAQ	AMSC	Tue, Dec 27, 2022	3.39	3.41	3.25	3.35
7702	NASDAQ	AMSC	Fri, Dec 23, 2022	3.56	3.58	3.38	3.40
7701	NASDAQ	AMSC	Thu, Dec 22, 2022	3.72	3.76	3.50	3.58
7700	NASDAQ	AMSC	Wed, Dec 21, 2022	3.77	3.91	3.69	3.80
7699	NASDAQ	AMSC	Tue, Dec 20, 2022	3.55	3.84	3.50	3.68
7698	NASDAQ	AMSC	Mon, Dec 19, 2022	3.48	3.64	3.39	3.54
7697	NASDAQ	AMSC	Fri, Dec 16, 2022	3.54	3.56	3.36	3.54
7696	NASDAQ	AMSC	Thu, Dec 15, 2022	3.49	3.73	3.49	3.64
7695	NASDAQ	AMSC	Wed, Dec 14, 2022	3.32	3.72	3.32	3.60
7694	NASDAQ	AMSC	Tue, Dec 13, 2022	3.44	3.53	3.25	3.29
7693	NASDAQ	AMSC	Mon, Dec 12, 2022	3.41	3.41	3.20	3.37
7692	NASDAQ	AMSC	Fri, Dec 9, 2022	3.36	3.54	3.32	3.42
7691	NASDAQ	AMSC	Thu, Dec 8, 2022	3.35	3.45	3.28	3.35
7690	NASDAQ	AMSC	Wed, Dec 7, 2022	3.53	3.56	3.30	3.32
7689	NASDAQ	AMSC	Tue, Dec 6, 2022	3.67	3.73	3.53	3.54
7688	NASDAQ	AMSC	Mon, Dec 5, 2022	3.90	3.91	3.70	3.70
7687	NASDAQ	AMSC	Fri, Dec 2, 2022	3.90	3.99	3.81	3.95
7686	NASDAQ	AMSC	Thu, Dec 1, 2022	3.80	4.04	3.80	3.95
7685	NASDAQ	AMSC	Wed, Nov 30, 2022	3.89	3.96	3.75	3.76
7684	NASDAQ	AMSC	Tue, Nov 29, 2022	4.08	4.12	3.88	3.91
7683	NASDAQ	AMSC	Mon, Nov 28, 2022	4.23	4.54	4.06	4.09
7682	NASDAQ	AMSC	Fri, Nov 25, 2022	4.15	4.30	4.10	4.23
7681	NASDAQ	AMSC	Wed, Nov 23, 2022	3.97	4.15	3.97	4.12
7680	NASDAQ	AMSC	Tue, Nov 22, 2022	4.01	4.22	3.91	3.95
7679	NASDAQ	AMSC	Mon, Nov 21, 2022	3.91	4.01	3.71	3.95
7678	NASDAQ	AMSC	Fri, Nov 18, 2022	3.99	4.07	3.90	3.99
7677	NASDAQ	AMSC	Thu, Nov 17, 2022	4.00	4.08	3.87	3.93
7676	NASDAQ	AMSC	Wed, Nov 16, 2022	4.15	4.15	3.96	4.06
7675	NASDAQ	AMSC	Tue, Nov 15, 2022	4.11	4.34	4.11	4.18
7674	NASDAQ	AMSC	Mon, Nov 14, 2022	4.12	4.12	3.96	4.01
7673	NASDAQ	AMSC	Fri, Nov 11, 2022	3.99	4.20	3.94	4.12
7672	NASDAQ	AMSC	Thu, Nov 10, 2022	3.57	3.96	3.57	3.91
7671	NASDAQ	AMSC	Wed, Nov 9, 2022	3.70	3.70	3.43	3.49
7670	NASDAQ	AMSC	Tue, Nov 8, 2022	3.88	3.88	3.63	3.66
7669	NASDAQ	AMSC	Mon, Nov 7, 2022	3.78	3.94	3.71	3.82
7668	NASDAQ	AMSC	Fri, Nov 4, 2022	3.78	3.85	3.59	3.72
7667	NASDAQ	AMSC	Thu, Nov 3, 2022	3.61	3.86	3.45	3.76
7666	NASDAQ	AMSC	Wed, Nov 2, 2022	4.55	4.70	3.27	3.63
7665	NASDAQ	AMSC	Tue, Nov 1, 2022	4.65	4.79	4.60	4.74
7664	NASDAQ	AMSC	Mon, Oct 31, 2022	4.27	4.55	4.26	4.52
7663	NASDAQ	AMSC	Fri, Oct 28, 2022	4.26	4.30	4.07	4.27
7662	NASDAQ	AMSC	Thu, Oct 27, 2022	4.51	4.51	4.25	4.27
7661	NASDAQ	AMSC	Wed, Oct 26, 2022	4.37	4.59	4.34	4.44
7660	NASDAQ	AMSC	Tue, Oct 25, 2022	4.20	4.40	4.20	4.32
7659	NASDAQ	AMSC	Mon, Oct 24, 2022	4.15	4.24	3.95	4.20
7658	NASDAQ	AMSC	Fri, Oct 21, 2022	4.01	4.14	3.92	4.07
7657	NASDAQ	AMSC	Thu, Oct 20, 2022	4.05	4.20	3.96	4.00
7656	NASDAQ	AMSC	Wed, Oct 19, 2022	4.07	4.22	3.95	4.08
7655	NASDAQ	AMSC	Tue, Oct 18, 2022	4.18	4.34	4.08	4.15
7654	NASDAQ	AMSC	Mon, Oct 17, 2022	3.96	4.06	3.89	3.98
7653	NASDAQ	AMSC	Fri, Oct 14, 2022	4.08	4.15	3.83	3.87
7652	NASDAQ	AMSC	Thu, Oct 13, 2022	3.85	4.11	3.80	3.99
7651	NASDAQ	AMSC	Wed, Oct 12, 2022	3.90	3.96	3.80	3.92
7650	NASDAQ	AMSC	Tue, Oct 11, 2022	3.93	3.98	3.79	3.88
7649	NASDAQ	AMSC	Mon, Oct 10, 2022	4.33	4.57	3.95	3.98
7648	NASDAQ	AMSC	Fri, Oct 7, 2022	4.48	4.48	4.25	4.31
7647	NASDAQ	AMSC	Thu, Oct 6, 2022	4.70	4.90	4.50	4.53
7646	NASDAQ	AMSC	Wed, Oct 5, 2022	4.87	4.92	4.64	4.77
7645	NASDAQ	AMSC	Tue, Oct 4, 2022	4.71	4.92	4.71	4.86
7644	NASDAQ	AMSC	Mon, Oct 3, 2022	4.40	4.74	4.32	4.59
7643	NASDAQ	AMSC	Fri, Sep 30, 2022	4.49	4.58	4.34	4.38
7642	NASDAQ	AMSC	Thu, Sep 29, 2022	4.56	4.79	4.40	4.45
7641	NASDAQ	AMSC	Wed, Sep 28, 2022	4.63	4.63	4.40	4.58
7640	NASDAQ	AMSC	Tue, Sep 27, 2022	4.58	4.71	4.49	4.55
7639	NASDAQ	AMSC	Mon, Sep 26, 2022	4.48	4.75	4.42	4.46
7638	NASDAQ	AMSC	Fri, Sep 23, 2022	4.59	4.65	4.35	4.45
7637	NASDAQ	AMSC	Thu, Sep 22, 2022	4.84	5.02	4.54	4.66
7636	NASDAQ	AMSC	Wed, Sep 21, 2022	5.04	5.12	4.84	4.85
7635	NASDAQ	AMSC	Tue, Sep 20, 2022	5.42	5.69	5.00	5.02
7634	NASDAQ	AMSC	Mon, Sep 19, 2022	5.10	5.60	5.10	5.43
7633	NASDAQ	AMSC	Fri, Sep 16, 2022	4.89	5.20	4.80	5.20
7632	NASDAQ	AMSC	Thu, Sep 15, 2022	4.88	5.09	4.88	4.91
7631	NASDAQ	AMSC	Wed, Sep 14, 2022	4.86	5.02	4.78	4.91
7630	NASDAQ	AMSC	Tue, Sep 13, 2022	4.81	4.90	4.75	4.78
7629	NASDAQ	AMSC	Mon, Sep 12, 2022	4.96	5.13	4.84	5.07
7628	NASDAQ	AMSC	Fri, Sep 9, 2022	4.83	5.02	4.81	4.92
7627	NASDAQ	AMSC	Thu, Sep 8, 2022	5.14	5.27	4.72	4.82
7626	NASDAQ	AMSC	Wed, Sep 7, 2022	5.15	5.25	5.07	5.19
7625	NASDAQ	AMSC	Tue, Sep 6, 2022	5.20	5.30	5.06	5.12
7624	NASDAQ	AMSC	Fri, Sep 2, 2022	5.21	5.41	4.99	5.20
7623	NASDAQ	AMSC	Thu, Sep 1, 2022	5.26	5.28	4.99	5.13
7622	NASDAQ	AMSC	Wed, Aug 31, 2022	5.36	5.37	5.15	5.34
7621	NASDAQ	AMSC	Tue, Aug 30, 2022	5.35	5.43	5.15	5.20
7620	NASDAQ	AMSC	Mon, Aug 29, 2022	5.40	5.54	5.28	5.28
7619	NASDAQ	AMSC	Fri, Aug 26, 2022	5.76	5.81	5.42	5.48
7618	NASDAQ	AMSC	Thu, Aug 25, 2022	5.64	5.76	5.58	5.74
7617	NASDAQ	AMSC	Wed, Aug 24, 2022	5.34	5.74	5.34	5.51
7616	NASDAQ	AMSC	Tue, Aug 23, 2022	5.25	5.43	5.22	5.31
7615	NASDAQ	AMSC	Mon, Aug 22, 2022	5.37	5.37	5.12	5.21
7614	NASDAQ	AMSC	Fri, Aug 19, 2022	5.69	5.71	5.42	5.47
7613	NASDAQ	AMSC	Thu, Aug 18, 2022	5.74	5.86	5.54	5.79
7612	NASDAQ	AMSC	Wed, Aug 17, 2022	5.99	6.02	5.74	5.80
7611	NASDAQ	AMSC	Tue, Aug 16, 2022	6.01	6.13	5.91	6.05
7610	NASDAQ	AMSC	Mon, Aug 15, 2022	6.10	6.35	5.81	6.09
7609	NASDAQ	AMSC	Fri, Aug 12, 2022	5.72	6.15	5.67	6.13
7608	NASDAQ	AMSC	Thu, Aug 11, 2022	5.51	6.10	5.48	5.66
7607	NASDAQ	AMSC	Wed, Aug 10, 2022	5.10	5.43	5.07	5.38
7606	NASDAQ	AMSC	Tue, Aug 9, 2022	5.12	5.41	4.94	4.99
7605	NASDAQ	AMSC	Mon, Aug 8, 2022	5.42	5.64	5.15	5.19
7604	NASDAQ	AMSC	Fri, Aug 5, 2022	5.28	5.60	5.19	5.20
7603	NASDAQ	AMSC	Thu, Aug 4, 2022	5.90	6.05	5.41	5.44
7602	NASDAQ	AMSC	Wed, Aug 3, 2022	6.13	6.29	6.01	6.23
7601	NASDAQ	AMSC	Tue, Aug 2, 2022	5.93	6.21	5.91	6.14
7600	NASDAQ	AMSC	Mon, Aug 1, 2022	6.09	6.20	5.83	5.94
7599	NASDAQ	AMSC	Fri, Jul 29, 2022	5.78	6.25	5.75	6.14
7598	NASDAQ	AMSC	Thu, Jul 28, 2022	5.57	6.11	5.38	5.78
7597	NASDAQ	AMSC	Wed, Jul 27, 2022	5.07	5.36	4.87	5.27
7596	NASDAQ	AMSC	Tue, Jul 26, 2022	4.80	4.82	4.69	4.76
7595	NASDAQ	AMSC	Mon, Jul 25, 2022	4.95	4.98	4.84	4.86
7594	NASDAQ	AMSC	Fri, Jul 22, 2022	5.30	5.40	4.95	4.96
7593	NASDAQ	AMSC	Thu, Jul 21, 2022	5.13	5.31	5.03	5.28
7592	NASDAQ	AMSC	Wed, Jul 20, 2022	4.81	5.17	4.81	5.17
7591	NASDAQ	AMSC	Tue, Jul 19, 2022	4.89	4.90	4.71	4.76
7590	NASDAQ	AMSC	Mon, Jul 18, 2022	4.81	5.08	4.81	4.89
7589	NASDAQ	AMSC	Fri, Jul 15, 2022	4.77	4.77	4.53	4.74
7588	NASDAQ	AMSC	Thu, Jul 14, 2022	4.77	4.87	4.66	4.82
7587	NASDAQ	AMSC	Wed, Jul 13, 2022	4.63	4.89	4.59	4.84
7586	NASDAQ	AMSC	Tue, Jul 12, 2022	4.77	4.90	4.58	4.74
7585	NASDAQ	AMSC	Mon, Jul 11, 2022	5.05	5.16	4.72	4.76
7584	NASDAQ	AMSC	Fri, Jul 8, 2022	5.03	5.40	4.99	5.09
7583	NASDAQ	AMSC	Thu, Jul 7, 2022	4.90	5.17	4.90	5.10
7582	NASDAQ	AMSC	Wed, Jul 6, 2022	4.88	5.01	4.72	4.84
7581	NASDAQ	AMSC	Tue, Jul 5, 2022	4.71	4.93	4.64	4.90
7580	NASDAQ	AMSC	Fri, Jul 1, 2022	5.14	5.26	4.85	4.86
7579	NASDAQ	AMSC	Thu, Jun 30, 2022	4.86	5.18	4.77	5.18
7578	NASDAQ	AMSC	Wed, Jun 29, 2022	5.00	5.03	4.71	4.85
7577	NASDAQ	AMSC	Tue, Jun 28, 2022	5.42	5.44	5.00	5.01
7576	NASDAQ	AMSC	Mon, Jun 27, 2022	5.41	5.44	5.05	5.38
7575	NASDAQ	AMSC	Fri, Jun 24, 2022	5.39	5.62	5.16	5.35
7574	NASDAQ	AMSC	Thu, Jun 23, 2022	4.75	5.33	4.71	5.32
7573	NASDAQ	AMSC	Wed, Jun 22, 2022	4.42	4.88	4.23	4.74
7572	NASDAQ	AMSC	Tue, Jun 21, 2022	4.85	4.96	4.48	4.52
7571	NASDAQ	AMSC	Fri, Jun 17, 2022	4.88	5.11	4.70	4.73
7570	NASDAQ	AMSC	Thu, Jun 16, 2022	5.10	5.24	4.84	4.89
7569	NASDAQ	AMSC	Wed, Jun 15, 2022	5.14	5.38	5.12	5.30
7568	NASDAQ	AMSC	Tue, Jun 14, 2022	6.06	6.15	5.08	5.09
7567	NASDAQ	AMSC	Mon, Jun 13, 2022	5.51	6.13	5.48	6.07
7566	NASDAQ	AMSC	Fri, Jun 10, 2022	6.18	6.18	5.90	5.92
7565	NASDAQ	AMSC	Thu, Jun 9, 2022	6.19	6.45	6.10	6.32
7564	NASDAQ	AMSC	Wed, Jun 8, 2022	6.27	6.46	6.09	6.25
7563	NASDAQ	AMSC	Tue, Jun 7, 2022	5.91	6.35	5.90	6.33
7562	NASDAQ	AMSC	Mon, Jun 6, 2022	6.21	6.30	6.00	6.03
7561	NASDAQ	AMSC	Fri, Jun 3, 2022	6.24	6.28	5.97	6.03
7560	NASDAQ	AMSC	Thu, Jun 2, 2022	4.72	6.65	4.72	6.32
7559	NASDAQ	AMSC	Wed, Jun 1, 2022	5.33	5.49	5.16	5.28
7558	NASDAQ	AMSC	Tue, May 31, 2022	5.59	5.64	5.32	5.34
7557	NASDAQ	AMSC	Fri, May 27, 2022	5.40	5.64	5.39	5.50
7556	NASDAQ	AMSC	Thu, May 26, 2022	5.04	5.53	5.04	5.42
7555	NASDAQ	AMSC	Wed, May 25, 2022	4.96	5.11	4.92	5.05
7554	NASDAQ	AMSC	Tue, May 24, 2022	5.19	5.20	4.92	5.00
7553	NASDAQ	AMSC	Mon, May 23, 2022	5.20	5.30	4.97	5.27
7552	NASDAQ	AMSC	Fri, May 20, 2022	5.37	5.39	5.01	5.21
7551	NASDAQ	AMSC	Thu, May 19, 2022	5.16	5.41	5.16	5.27
7550	NASDAQ	AMSC	Wed, May 18, 2022	5.29	5.62	5.14	5.17
7549	NASDAQ	AMSC	Tue, May 17, 2022	5.13	5.39	5.03	5.37
7548	NASDAQ	AMSC	Mon, May 16, 2022	5.14	5.31	4.95	4.97
7547	NASDAQ	AMSC	Fri, May 13, 2022	4.85	5.22	4.85	5.15
7546	NASDAQ	AMSC	Thu, May 12, 2022	4.58	4.98	4.45	4.79
7545	NASDAQ	AMSC	Wed, May 11, 2022	4.94	5.05	4.62	4.66
7544	NASDAQ	AMSC	Tue, May 10, 2022	5.04	5.19	4.81	4.96
7543	NASDAQ	AMSC	Mon, May 9, 2022	5.20	5.20	4.85	4.87
7542	NASDAQ	AMSC	Fri, May 6, 2022	5.60	5.62	5.25	5.33
7541	NASDAQ	AMSC	Thu, May 5, 2022	5.87	5.95	5.53	5.62
7540	NASDAQ	AMSC	Wed, May 4, 2022	5.59	5.96	5.48	5.94
7539	NASDAQ	AMSC	Tue, May 3, 2022	5.60	5.72	5.38	5.57
7538	NASDAQ	AMSC	Mon, May 2, 2022	5.28	5.60	5.22	5.60
7537	NASDAQ	AMSC	Fri, Apr 29, 2022	5.47	5.80	5.27	5.33
7536	NASDAQ	AMSC	Thu, Apr 28, 2022	5.48	5.60	5.17	5.55
7535	NASDAQ	AMSC	Wed, Apr 27, 2022	5.73	5.95	5.43	5.45
7534	NASDAQ	AMSC	Tue, Apr 26, 2022	6.00	6.00	5.56	5.63
7533	NASDAQ	AMSC	Mon, Apr 25, 2022	6.07	6.27	5.89	6.07
7532	NASDAQ	AMSC	Fri, Apr 22, 2022	6.11	6.21	5.92	6.07
7531	NASDAQ	AMSC	Thu, Apr 21, 2022	6.50	6.55	6.01	6.11
7530	NASDAQ	AMSC	Wed, Apr 20, 2022	6.89	6.89	6.39	6.40
7529	NASDAQ	AMSC	Tue, Apr 19, 2022	6.71	7.07	6.62	6.82
7528	NASDAQ	AMSC	Mon, Apr 18, 2022	6.82	7.20	6.65	6.70
7527	NASDAQ	AMSC	Thu, Apr 14, 2022	7.21	7.24	6.84	6.86
7526	NASDAQ	AMSC	Wed, Apr 13, 2022	7.17	7.17	6.96	7.13
7525	NASDAQ	AMSC	Tue, Apr 12, 2022	7.23	7.43	7.02	7.05
7524	NASDAQ	AMSC	Mon, Apr 11, 2022	6.97	7.21	6.75	7.11
7523	NASDAQ	AMSC	Fri, Apr 8, 2022	7.30	7.30	6.95	7.04
7522	NASDAQ	AMSC	Thu, Apr 7, 2022	7.52	7.60	7.02	7.33
7521	NASDAQ	AMSC	Wed, Apr 6, 2022	8.05	8.11	7.47	7.51
7520	NASDAQ	AMSC	Tue, Apr 5, 2022	8.30	8.31	8.03	8.14
7519	NASDAQ	AMSC	Mon, Apr 4, 2022	7.64	8.27	7.64	8.24
7518	NASDAQ	AMSC	Fri, Apr 1, 2022	7.65	7.73	7.50	7.64
7517	NASDAQ	AMSC	Thu, Mar 31, 2022	7.78	7.89	7.56	7.61
7516	NASDAQ	AMSC	Wed, Mar 30, 2022	8.15	8.22	7.72	7.73
7515	NASDAQ	AMSC	Tue, Mar 29, 2022	8.09	8.37	8.03	8.17
7514	NASDAQ	AMSC	Mon, Mar 28, 2022	8.44	8.47	7.73	8.00
7513	NASDAQ	AMSC	Fri, Mar 25, 2022	8.90	8.90	8.36	8.47
7512	NASDAQ	AMSC	Thu, Mar 24, 2022	8.67	9.36	8.52	8.76
7511	NASDAQ	AMSC	Wed, Mar 23, 2022	8.82	8.95	8.48	8.51
7510	NASDAQ	AMSC	Tue, Mar 22, 2022	8.84	9.05	8.77	8.90
7509	NASDAQ	AMSC	Mon, Mar 21, 2022	8.83	9.00	8.43	8.76
7508	NASDAQ	AMSC	Fri, Mar 18, 2022	8.78	9.14	8.71	8.99
7507	NASDAQ	AMSC	Thu, Mar 17, 2022	8.24	8.86	8.22	8.78
7506	NASDAQ	AMSC	Wed, Mar 16, 2022	8.00	8.37	7.96	8.34
7505	NASDAQ	AMSC	Tue, Mar 15, 2022	7.45	8.02	7.40	7.94
7504	NASDAQ	AMSC	Mon, Mar 14, 2022	8.27	8.36	7.35	7.40
7503	NASDAQ	AMSC	Fri, Mar 11, 2022	9.25	9.33	8.26	8.31
7502	NASDAQ	AMSC	Thu, Mar 10, 2022	9.51	9.59	9.11	9.18
7501	NASDAQ	AMSC	Wed, Mar 9, 2022	10.02	10.14	9.49	9.72
7500	NASDAQ	AMSC	Tue, Mar 8, 2022	8.78	10.14	8.78	9.90
7499	NASDAQ	AMSC	Mon, Mar 7, 2022	7.97	8.69	7.97	8.63
7498	NASDAQ	AMSC	Fri, Mar 4, 2022	7.96	8.39	7.78	7.93
7497	NASDAQ	AMSC	Thu, Mar 3, 2022	8.63	8.73	7.98	8.06
7496	NASDAQ	AMSC	Wed, Mar 2, 2022	8.58	8.66	8.34	8.53
7495	NASDAQ	AMSC	Tue, Mar 1, 2022	8.50	8.60	8.24	8.54
7494	NASDAQ	AMSC	Mon, Feb 28, 2022	8.10	9.03	8.10	8.49
7493	NASDAQ	AMSC	Fri, Feb 25, 2022	8.14	8.20	7.93	8.18
7492	NASDAQ	AMSC	Thu, Feb 24, 2022	7.17	8.19	7.10	8.13
7491	NASDAQ	AMSC	Wed, Feb 23, 2022	7.69	7.82	7.44	7.48
7490	NASDAQ	AMSC	Tue, Feb 22, 2022	7.58	7.83	7.54	7.61
7489	NASDAQ	AMSC	Fri, Feb 18, 2022	7.91	7.97	7.62	7.68
7488	NASDAQ	AMSC	Thu, Feb 17, 2022	8.20	8.40	7.88	7.95
7487	NASDAQ	AMSC	Wed, Feb 16, 2022	8.35	8.48	8.19	8.33
7486	NASDAQ	AMSC	Tue, Feb 15, 2022	7.96	8.45	7.91	8.43
7485	NASDAQ	AMSC	Mon, Feb 14, 2022	7.69	8.03	7.66	7.80
7484	NASDAQ	AMSC	Fri, Feb 11, 2022	8.05	8.22	7.61	7.71
7483	NASDAQ	AMSC	Thu, Feb 10, 2022	8.09	8.48	7.88	7.98
7482	NASDAQ	AMSC	Wed, Feb 9, 2022	8.19	8.43	8.12	8.36
7481	NASDAQ	AMSC	Tue, Feb 8, 2022	7.81	8.24	7.81	7.98
7480	NASDAQ	AMSC	Mon, Feb 7, 2022	8.05	8.29	7.80	7.87
7479	NASDAQ	AMSC	Fri, Feb 4, 2022	7.83	8.16	7.65	8.05
7478	NASDAQ	AMSC	Thu, Feb 3, 2022	7.85	7.96	7.57	7.88
7477	NASDAQ	AMSC	Wed, Feb 2, 2022	8.72	8.90	8.15	8.18
7476	NASDAQ	AMSC	Tue, Feb 1, 2022	8.63	8.88	8.08	8.65
7475	NASDAQ	AMSC	Mon, Jan 31, 2022	7.43	8.21	7.38	8.20
7474	NASDAQ	AMSC	Fri, Jan 28, 2022	7.31	7.46	7.04	7.37
7473	NASDAQ	AMSC	Thu, Jan 27, 2022	8.00	8.00	7.35	7.38
7472	NASDAQ	AMSC	Wed, Jan 26, 2022	8.44	8.44	7.75	7.84
7471	NASDAQ	AMSC	Tue, Jan 25, 2022	8.16	8.33	7.65	8.10
7470	NASDAQ	AMSC	Mon, Jan 24, 2022	7.82	8.33	7.29	8.25
7469	NASDAQ	AMSC	Fri, Jan 21, 2022	8.37	8.48	7.95	7.98
7468	NASDAQ	AMSC	Thu, Jan 20, 2022	8.70	9.11	8.47	8.53
7467	NASDAQ	AMSC	Wed, Jan 19, 2022	9.19	9.29	8.71	8.74
7466	NASDAQ	AMSC	Tue, Jan 18, 2022	9.53	9.61	9.05	9.09
7465	NASDAQ	AMSC	Fri, Jan 14, 2022	9.21	9.65	9.14	9.60
7464	NASDAQ	AMSC	Thu, Jan 13, 2022	9.76	9.81	9.28	9.33
7463	NASDAQ	AMSC	Wed, Jan 12, 2022	10.10	10.16	9.64	9.65
7462	NASDAQ	AMSC	Tue, Jan 11, 2022	9.89	10.17	9.75	9.96
7461	NASDAQ	AMSC	Mon, Jan 10, 2022	10.14	10.16	9.53	9.89
7460	NASDAQ	AMSC	Fri, Jan 7, 2022	10.28	10.59	10.10	10.23
7459	NASDAQ	AMSC	Thu, Jan 6, 2022	11.01	11.01	10.02	10.34
7458	NASDAQ	AMSC	Wed, Jan 5, 2022	11.00	11.02	10.36	10.48
7457	NASDAQ	AMSC	Tue, Jan 4, 2022	11.08	11.37	10.75	10.99
7456	NASDAQ	AMSC	Mon, Jan 3, 2022	10.83	11.10	10.45	11.02
7455	NASDAQ	AMSC	Fri, Dec 31, 2021	10.88	11.19	10.87	10.88
7454	NASDAQ	AMSC	Thu, Dec 30, 2021	10.86	11.29	10.86	10.97
7453	NASDAQ	AMSC	Wed, Dec 29, 2021	10.80	10.95	10.46	10.75
7452	NASDAQ	AMSC	Tue, Dec 28, 2021	11.09	11.44	10.85	10.89
7451	NASDAQ	AMSC	Mon, Dec 27, 2021	11.64	11.81	11.08	11.20
7450	NASDAQ	AMSC	Thu, Dec 23, 2021	11.40	11.93	11.25	11.66
7449	NASDAQ	AMSC	Wed, Dec 22, 2021	11.69	11.69	11.15	11.29
7448	NASDAQ	AMSC	Tue, Dec 21, 2021	11.23	11.46	11.03	11.41
7447	NASDAQ	AMSC	Mon, Dec 20, 2021	10.83	11.00	10.35	10.87
7446	NASDAQ	AMSC	Fri, Dec 17, 2021	10.90	11.52	10.63	11.16
7445	NASDAQ	AMSC	Thu, Dec 16, 2021	11.32	11.89	10.91	10.99
7444	NASDAQ	AMSC	Wed, Dec 15, 2021	10.78	11.17	10.20	11.08
7443	NASDAQ	AMSC	Tue, Dec 14, 2021	11.17	11.34	10.73	10.78
7442	NASDAQ	AMSC	Mon, Dec 13, 2021	11.25	11.60	11.20	11.47
7441	NASDAQ	AMSC	Fri, Dec 10, 2021	11.63	11.87	11.17	11.26
7440	NASDAQ	AMSC	Thu, Dec 9, 2021	11.87	11.97	11.59	11.65
7439	NASDAQ	AMSC	Wed, Dec 8, 2021	11.65	12.12	11.45	12.04
7438	NASDAQ	AMSC	Tue, Dec 7, 2021	11.61	12.04	11.46	11.65
7437	NASDAQ	AMSC	Mon, Dec 6, 2021	11.25	11.40	10.49	11.24
7436	NASDAQ	AMSC	Fri, Dec 3, 2021	12.10	12.23	11.08	11.26
7435	NASDAQ	AMSC	Thu, Dec 2, 2021	12.09	12.28	11.73	12.00
7434	NASDAQ	AMSC	Wed, Dec 1, 2021	13.11	13.29	12.16	12.19
7433	NASDAQ	AMSC	Tue, Nov 30, 2021	12.87	13.36	12.44	12.80
7432	NASDAQ	AMSC	Mon, Nov 29, 2021	13.50	13.51	12.80	12.91
7431	NASDAQ	AMSC	Fri, Nov 26, 2021	13.14	13.50	12.70	13.28
7430	NASDAQ	AMSC	Wed, Nov 24, 2021	13.44	13.73	13.18	13.68
7429	NASDAQ	AMSC	Tue, Nov 23, 2021	13.60	13.90	13.11	13.54
7428	NASDAQ	AMSC	Mon, Nov 22, 2021	14.32	14.49	13.57	13.66
7427	NASDAQ	AMSC	Fri, Nov 19, 2021	14.00	14.68	13.97	14.30
7426	NASDAQ	AMSC	Thu, Nov 18, 2021	14.75	14.85	13.95	14.18
7425	NASDAQ	AMSC	Wed, Nov 17, 2021	15.19	15.37	14.62	14.82
7424	NASDAQ	AMSC	Tue, Nov 16, 2021	15.54	15.54	15.22	15.35
7423	NASDAQ	AMSC	Mon, Nov 15, 2021	16.05	16.05	15.38	15.65
7422	NASDAQ	AMSC	Fri, Nov 12, 2021	16.42	16.71	15.74	16.04
7421	NASDAQ	AMSC	Thu, Nov 11, 2021	16.20	17.20	15.88	16.47
7420	NASDAQ	AMSC	Wed, Nov 10, 2021	17.24	17.24	16.15	16.17
7419	NASDAQ	AMSC	Tue, Nov 9, 2021	17.25	17.45	16.14	17.24
7418	NASDAQ	AMSC	Mon, Nov 8, 2021	17.78	18.37	17.78	18.28
7417	NASDAQ	AMSC	Fri, Nov 5, 2021	17.80	18.09	17.25	17.65
7416	NASDAQ	AMSC	Thu, Nov 4, 2021	18.25	18.44	17.77	17.80
7415	NASDAQ	AMSC	Wed, Nov 3, 2021	18.25	18.26	17.69	18.17
7414	NASDAQ	AMSC	Tue, Nov 2, 2021	19.31	19.31	18.11	18.24
7413	NASDAQ	AMSC	Mon, Nov 1, 2021	18.50	19.36	18.30	19.29
7412	NASDAQ	AMSC	Fri, Oct 29, 2021	18.15	18.47	18.09	18.38
7411	NASDAQ	AMSC	Thu, Oct 28, 2021	17.28	18.25	17.26	18.20
7410	NASDAQ	AMSC	Wed, Oct 27, 2021	17.29	17.90	17.10	17.15
7409	NASDAQ	AMSC	Tue, Oct 26, 2021	17.45	17.55	17.00	17.25
7408	NASDAQ	AMSC	Mon, Oct 25, 2021	17.24	17.42	16.66	17.25
7407	NASDAQ	AMSC	Fri, Oct 22, 2021	17.08	17.25	16.95	17.14
7406	NASDAQ	AMSC	Thu, Oct 21, 2021	17.10	17.63	16.80	17.15
7405	NASDAQ	AMSC	Wed, Oct 20, 2021	17.12	17.36	16.89	17.20
7404	NASDAQ	AMSC	Tue, Oct 19, 2021	16.82	17.47	16.68	17.31
7403	NASDAQ	AMSC	Mon, Oct 18, 2021	16.75	17.13	16.50	16.64
7402	NASDAQ	AMSC	Fri, Oct 15, 2021	17.30	17.30	16.68	16.75
7401	NASDAQ	AMSC	Thu, Oct 14, 2021	17.18	17.20	16.52	16.95
7400	NASDAQ	AMSC	Wed, Oct 13, 2021	16.42	17.03	16.30	16.91
7399	NASDAQ	AMSC	Tue, Oct 12, 2021	16.04	16.76	16.04	16.31
7398	NASDAQ	AMSC	Mon, Oct 11, 2021	15.25	16.12	15.24	15.94
7397	NASDAQ	AMSC	Fri, Oct 8, 2021	15.40	15.53	15.00	15.14
7396	NASDAQ	AMSC	Thu, Oct 7, 2021	14.62	15.76	14.51	15.42
7395	NASDAQ	AMSC	Wed, Oct 6, 2021	14.11	14.41	13.85	14.37
7394	NASDAQ	AMSC	Tue, Oct 5, 2021	14.25	14.37	13.80	14.11
7393	NASDAQ	AMSC	Mon, Oct 4, 2021	14.45	14.76	14.07	14.17
7392	NASDAQ	AMSC	Fri, Oct 1, 2021	14.55	14.98	14.42	14.58
7391	NASDAQ	AMSC	Thu, Sep 30, 2021	13.71	14.91	13.67	14.58
7390	NASDAQ	AMSC	Wed, Sep 29, 2021	14.38	14.49	13.36	13.56
7389	NASDAQ	AMSC	Tue, Sep 28, 2021	14.47	14.59	13.99	14.27
7388	NASDAQ	AMSC	Mon, Sep 27, 2021	13.62	14.81	13.36	14.64
7387	NASDAQ	AMSC	Fri, Sep 24, 2021	13.72	13.92	13.48	13.67
7386	NASDAQ	AMSC	Thu, Sep 23, 2021	14.00	14.13	13.35	13.92
7385	NASDAQ	AMSC	Wed, Sep 22, 2021	13.40	14.02	13.31	13.91
7384	NASDAQ	AMSC	Tue, Sep 21, 2021	13.33	13.42	12.78	13.31
7383	NASDAQ	AMSC	Mon, Sep 20, 2021	13.08	13.26	12.76	13.23
7382	NASDAQ	AMSC	Fri, Sep 17, 2021	12.97	13.70	12.92	13.60
7381	NASDAQ	AMSC	Thu, Sep 16, 2021	13.12	13.23	12.59	12.88
7380	NASDAQ	AMSC	Wed, Sep 15, 2021	13.28	13.32	12.82	13.11
7379	NASDAQ	AMSC	Tue, Sep 14, 2021	13.87	14.10	13.29	13.40
7378	NASDAQ	AMSC	Mon, Sep 13, 2021	13.70	13.77	13.23	13.75
7377	NASDAQ	AMSC	Fri, Sep 10, 2021	13.57	13.94	13.48	13.65
7376	NASDAQ	AMSC	Thu, Sep 9, 2021	13.29	13.94	13.11	13.54
7375	NASDAQ	AMSC	Wed, Sep 8, 2021	14.11	14.15	13.33	13.39
7374	NASDAQ	AMSC	Tue, Sep 7, 2021	14.17	14.59	13.90	14.28
7373	NASDAQ	AMSC	Fri, Sep 3, 2021	13.98	14.42	13.95	14.17
7372	NASDAQ	AMSC	Thu, Sep 2, 2021	14.05	14.29	13.87	14.01
7371	NASDAQ	AMSC	Wed, Sep 1, 2021	14.77	14.87	13.90	13.99
7370	NASDAQ	AMSC	Tue, Aug 31, 2021	13.10	15.37	13.10	14.90
7369	NASDAQ	AMSC	Mon, Aug 30, 2021	12.52	12.54	12.27	12.34
7368	NASDAQ	AMSC	Fri, Aug 27, 2021	12.55	12.68	12.44	12.54
7367	NASDAQ	AMSC	Thu, Aug 26, 2021	12.07	12.90	12.07	12.50
7366	NASDAQ	AMSC	Wed, Aug 25, 2021	12.25	12.43	11.95	12.16
7365	NASDAQ	AMSC	Tue, Aug 24, 2021	12.23	12.44	11.87	12.10
7364	NASDAQ	AMSC	Mon, Aug 23, 2021	11.61	12.16	11.61	12.14
7363	NASDAQ	AMSC	Fri, Aug 20, 2021	11.34	11.60	11.25	11.47
7362	NASDAQ	AMSC	Thu, Aug 19, 2021	11.75	11.90	11.38	11.44
7361	NASDAQ	AMSC	Wed, Aug 18, 2021	11.91	12.24	11.60	11.86
7360	NASDAQ	AMSC	Tue, Aug 17, 2021	12.00	12.08	11.71	11.85
7359	NASDAQ	AMSC	Mon, Aug 16, 2021	12.51	12.60	12.05	12.22
7358	NASDAQ	AMSC	Fri, Aug 13, 2021	13.36	13.37	12.57	12.63
7357	NASDAQ	AMSC	Thu, Aug 12, 2021	13.56	13.75	13.06	13.35
7356	NASDAQ	AMSC	Wed, Aug 11, 2021	14.63	14.81	13.56	13.64
7355	NASDAQ	AMSC	Tue, Aug 10, 2021	13.69	14.66	13.68	14.52
7354	NASDAQ	AMSC	Mon, Aug 9, 2021	12.56	13.89	12.31	13.63
7353	NASDAQ	AMSC	Fri, Aug 6, 2021	12.78	13.22	12.40	12.69
7352	NASDAQ	AMSC	Thu, Aug 5, 2021	13.50	13.50	12.27	12.54
7351	NASDAQ	AMSC	Wed, Aug 4, 2021	14.01	14.01	12.89	12.99
7350	NASDAQ	AMSC	Tue, Aug 3, 2021	14.07	14.07	13.29	13.50
7349	NASDAQ	AMSC	Mon, Aug 2, 2021	14.29	14.50	13.80	13.87
7348	NASDAQ	AMSC	Fri, Jul 30, 2021	14.04	14.64	13.89	14.05
7347	NASDAQ	AMSC	Thu, Jul 29, 2021	14.62	14.78	14.18	14.22
7346	NASDAQ	AMSC	Wed, Jul 28, 2021	13.81	14.82	13.76	14.50
7345	NASDAQ	AMSC	Tue, Jul 27, 2021	14.02	14.09	13.32	13.70
7344	NASDAQ	AMSC	Mon, Jul 26, 2021	14.14	14.45	13.82	14.08
7343	NASDAQ	AMSC	Fri, Jul 23, 2021	14.65	14.65	13.96	14.13
7342	NASDAQ	AMSC	Thu, Jul 22, 2021	15.02	15.02	14.29	14.48
7341	NASDAQ	AMSC	Wed, Jul 21, 2021	14.24	15.32	14.24	15.06
7340	NASDAQ	AMSC	Tue, Jul 20, 2021	13.54	14.31	13.25	14.16
7339	NASDAQ	AMSC	Mon, Jul 19, 2021	13.36	13.78	13.13	13.51
7338	NASDAQ	AMSC	Fri, Jul 16, 2021	14.91	14.91	13.70	13.80
7337	NASDAQ	AMSC	Thu, Jul 15, 2021	14.76	15.02	14.29	14.62
7336	NASDAQ	AMSC	Wed, Jul 14, 2021	15.58	15.74	14.70	14.75
7335	NASDAQ	AMSC	Tue, Jul 13, 2021	16.02	16.09	15.47	15.49
7334	NASDAQ	AMSC	Mon, Jul 12, 2021	16.19	16.27	15.70	16.13
7333	NASDAQ	AMSC	Fri, Jul 9, 2021	16.19	16.39	15.90	16.14
7332	NASDAQ	AMSC	Thu, Jul 8, 2021	15.49	16.04	15.31	15.78
7331	NASDAQ	AMSC	Wed, Jul 7, 2021	17.60	18.14	15.93	16.07
7330	NASDAQ	AMSC	Tue, Jul 6, 2021	17.53	18.11	17.25	17.56
7329	NASDAQ	AMSC	Fri, Jul 2, 2021	17.99	17.99	17.26	17.37
7328	NASDAQ	AMSC	Thu, Jul 1, 2021	17.42	18.12	17.30	17.79
7327	NASDAQ	AMSC	Wed, Jun 30, 2021	18.01	18.21	17.29	17.39
7326	NASDAQ	AMSC	Tue, Jun 29, 2021	18.51	19.43	18.23	18.26
7325	NASDAQ	AMSC	Mon, Jun 28, 2021	17.54	18.66	17.33	18.38
7324	NASDAQ	AMSC	Fri, Jun 25, 2021	17.78	18.39	17.57	17.58
7323	NASDAQ	AMSC	Thu, Jun 24, 2021	17.03	17.69	16.58	17.69
7322	NASDAQ	AMSC	Wed, Jun 23, 2021	15.67	17.26	15.57	16.93
7321	NASDAQ	AMSC	Tue, Jun 22, 2021	14.78	15.69	14.78	15.51
7320	NASDAQ	AMSC	Mon, Jun 21, 2021	14.64	15.09	14.39	14.92
7319	NASDAQ	AMSC	Fri, Jun 18, 2021	14.75	14.96	14.23	14.49
7318	NASDAQ	AMSC	Thu, Jun 17, 2021	15.23	15.42	14.83	15.04
7317	NASDAQ	AMSC	Wed, Jun 16, 2021	14.71	15.40	14.60	15.31
7316	NASDAQ	AMSC	Tue, Jun 15, 2021	15.10	15.19	14.54	14.70
7315	NASDAQ	AMSC	Mon, Jun 14, 2021	15.12	15.56	15.00	15.09
7314	NASDAQ	AMSC	Fri, Jun 11, 2021	14.11	15.24	14.11	15.18
7313	NASDAQ	AMSC	Thu, Jun 10, 2021	15.99	16.13	15.12	15.19
7312	NASDAQ	AMSC	Wed, Jun 9, 2021	16.06	16.59	15.65	15.99
7311	NASDAQ	AMSC	Tue, Jun 8, 2021	16.44	16.44	15.42	16.06
7310	NASDAQ	AMSC	Mon, Jun 7, 2021	17.72	17.86	15.64	16.10
7309	NASDAQ	AMSC	Fri, Jun 4, 2021	13.22	18.50	13.22	17.54
7308	NASDAQ	AMSC	Thu, Jun 3, 2021	14.96	14.96	12.73	12.76
7307	NASDAQ	AMSC	Wed, Jun 2, 2021	14.92	15.15	14.50	15.10
7306	NASDAQ	AMSC	Tue, Jun 1, 2021	15.10	15.29	14.81	15.06
7305	NASDAQ	AMSC	Fri, May 28, 2021	15.08	15.51	14.75	14.97
7304	NASDAQ	AMSC	Thu, May 27, 2021	14.70	14.98	14.40	14.91
7303	NASDAQ	AMSC	Wed, May 26, 2021	14.01	14.82	14.01	14.54
7302	NASDAQ	AMSC	Tue, May 25, 2021	14.70	14.95	13.92	13.97
7301	NASDAQ	AMSC	Mon, May 24, 2021	14.86	15.00	13.87	14.59
7300	NASDAQ	AMSC	Fri, May 21, 2021	14.89	15.20	14.74	14.99
7299	NASDAQ	AMSC	Thu, May 20, 2021	14.66	14.85	14.35	14.76
7298	NASDAQ	AMSC	Wed, May 19, 2021	13.98	14.57	13.74	14.54
7297	NASDAQ	AMSC	Tue, May 18, 2021	14.04	14.65	13.73	14.31
7296	NASDAQ	AMSC	Mon, May 17, 2021	13.85	14.16	13.52	13.99
7295	NASDAQ	AMSC	Fri, May 14, 2021	13.46	14.21	13.42	14.17
7294	NASDAQ	AMSC	Thu, May 13, 2021	13.47	13.88	12.79	13.15
7293	NASDAQ	AMSC	Wed, May 12, 2021	13.79	14.06	13.18	13.27
7292	NASDAQ	AMSC	Tue, May 11, 2021	13.50	14.46	13.30	14.12
7291	NASDAQ	AMSC	Mon, May 10, 2021	14.90	15.05	13.89	13.92
7290	NASDAQ	AMSC	Fri, May 7, 2021	14.86	15.48	14.68	14.99
7289	NASDAQ	AMSC	Thu, May 6, 2021	14.70	14.80	14.14	14.55
7288	NASDAQ	AMSC	Wed, May 5, 2021	15.49	15.66	14.57	14.79
7287	NASDAQ	AMSC	Tue, May 4, 2021	15.60	15.75	14.85	15.28
7286	NASDAQ	AMSC	Mon, May 3, 2021	16.71	17.01	15.78	15.88
7285	NASDAQ	AMSC	Fri, Apr 30, 2021	17.69	17.69	16.31	16.47
7284	NASDAQ	AMSC	Thu, Apr 29, 2021	17.70	17.77	16.64	17.01
7283	NASDAQ	AMSC	Wed, Apr 28, 2021	17.68	17.74	16.81	17.49
7282	NASDAQ	AMSC	Tue, Apr 27, 2021	17.93	18.06	17.11	17.68
7281	NASDAQ	AMSC	Mon, Apr 26, 2021	17.43	17.81	16.92	17.75
7280	NASDAQ	AMSC	Fri, Apr 23, 2021	16.92	17.35	16.66	17.13
7279	NASDAQ	AMSC	Thu, Apr 22, 2021	16.79	17.55	16.31	16.62
7278	NASDAQ	AMSC	Wed, Apr 21, 2021	15.20	16.45	14.94	16.41
7277	NASDAQ	AMSC	Tue, Apr 20, 2021	16.08	16.25	14.85	15.12
7276	NASDAQ	AMSC	Mon, Apr 19, 2021	16.45	16.52	15.60	16.23
7275	NASDAQ	AMSC	Fri, Apr 16, 2021	16.73	17.13	16.43	16.54
7274	NASDAQ	AMSC	Thu, Apr 15, 2021	18.55	18.55	16.17	16.67
7273	NASDAQ	AMSC	Wed, Apr 14, 2021	18.25	18.79	17.80	17.85
7272	NASDAQ	AMSC	Tue, Apr 13, 2021	18.58	18.72	17.82	18.26
7271	NASDAQ	AMSC	Mon, Apr 12, 2021	18.33	18.85	17.86	18.48
7270	NASDAQ	AMSC	Fri, Apr 9, 2021	19.44	19.44	18.39	18.61
7269	NASDAQ	AMSC	Thu, Apr 8, 2021	18.99	19.63	17.70	19.11
7268	NASDAQ	AMSC	Wed, Apr 7, 2021	18.46	18.95	17.68	17.81
7267	NASDAQ	AMSC	Tue, Apr 6, 2021	18.59	19.52	18.45	18.92
7266	NASDAQ	AMSC	Mon, Apr 5, 2021	19.86	20.00	18.29	18.48
7265	NASDAQ	AMSC	Thu, Apr 1, 2021	19.30	19.64	18.73	19.29
7264	NASDAQ	AMSC	Wed, Mar 31, 2021	19.06	19.09	17.97	18.96
7263	NASDAQ	AMSC	Tue, Mar 30, 2021	17.43	18.49	16.86	18.24
7262	NASDAQ	AMSC	Mon, Mar 29, 2021	18.85	18.85	16.85	17.16
7261	NASDAQ	AMSC	Fri, Mar 26, 2021	19.55	19.61	18.11	18.87
7260	NASDAQ	AMSC	Thu, Mar 25, 2021	19.33	19.82	18.25	19.40
7259	NASDAQ	AMSC	Wed, Mar 24, 2021	22.40	22.69	19.25	19.28
7258	NASDAQ	AMSC	Tue, Mar 23, 2021	23.57	24.68	22.14	22.30
7257	NASDAQ	AMSC	Mon, Mar 22, 2021	24.40	24.89	23.56	23.93
7256	NASDAQ	AMSC	Fri, Mar 19, 2021	22.77	24.39	22.40	24.08
7255	NASDAQ	AMSC	Thu, Mar 18, 2021	23.57	24.52	22.72	22.90
7254	NASDAQ	AMSC	Wed, Mar 17, 2021	23.95	24.10	22.08	23.95
7253	NASDAQ	AMSC	Tue, Mar 16, 2021	25.72	27.18	24.43	24.56
7252	NASDAQ	AMSC	Mon, Mar 15, 2021	25.80	25.83	24.37	25.70
7251	NASDAQ	AMSC	Fri, Mar 12, 2021	24.84	25.94	24.50	25.92
7250	NASDAQ	AMSC	Thu, Mar 11, 2021	24.98	25.70	24.65	25.27
7249	NASDAQ	AMSC	Wed, Mar 10, 2021	24.92	26.00	24.00	24.41
7248	NASDAQ	AMSC	Tue, Mar 9, 2021	22.50	24.68	22.25	24.15
7247	NASDAQ	AMSC	Mon, Mar 8, 2021	22.00	22.43	21.11	21.59
7246	NASDAQ	AMSC	Fri, Mar 5, 2021	21.49	22.00	19.89	21.81
7245	NASDAQ	AMSC	Thu, Mar 4, 2021	23.08	23.25	20.38	20.89
7244	NASDAQ	AMSC	Wed, Mar 3, 2021	25.34	25.60	22.89	23.08
7243	NASDAQ	AMSC	Tue, Mar 2, 2021	25.68	25.96	24.72	25.03
7242	NASDAQ	AMSC	Mon, Mar 1, 2021	24.52	26.46	24.39	25.89
7241	NASDAQ	AMSC	Fri, Feb 26, 2021	24.00	24.90	23.29	23.79
7240	NASDAQ	AMSC	Thu, Feb 25, 2021	25.05	25.38	23.88	24.09
7239	NASDAQ	AMSC	Wed, Feb 24, 2021	24.46	25.38	24.14	25.31
7238	NASDAQ	AMSC	Tue, Feb 23, 2021	23.83	24.54	21.18	24.45
7237	NASDAQ	AMSC	Mon, Feb 22, 2021	25.89	26.61	24.50	24.63
7236	NASDAQ	AMSC	Fri, Feb 19, 2021	24.68	26.60	24.68	25.98
7235	NASDAQ	AMSC	Thu, Feb 18, 2021	24.69	25.00	23.55	24.21
7234	NASDAQ	AMSC	Wed, Feb 17, 2021	25.09	25.35	23.34	24.88
7233	NASDAQ	AMSC	Tue, Feb 16, 2021	25.93	26.38	24.35	25.58
7232	NASDAQ	AMSC	Fri, Feb 12, 2021	25.80	26.29	25.30	25.80
7231	NASDAQ	AMSC	Thu, Feb 11, 2021	26.44	27.07	25.60	25.90
7230	NASDAQ	AMSC	Wed, Feb 10, 2021	28.25	28.33	25.84	26.04
7229	NASDAQ	AMSC	Tue, Feb 9, 2021	27.00	28.15	26.19	28.08
7228	NASDAQ	AMSC	Mon, Feb 8, 2021	24.91	27.63	24.35	27.42
7227	NASDAQ	AMSC	Fri, Feb 5, 2021	24.07	28.68	23.11	24.67
7226	NASDAQ	AMSC	Thu, Feb 4, 2021	26.55	27.35	22.32	23.15
7225	NASDAQ	AMSC	Wed, Feb 3, 2021	26.95	27.67	26.28	27.22
7224	NASDAQ	AMSC	Tue, Feb 2, 2021	25.87	27.08	25.53	26.58
7223	NASDAQ	AMSC	Mon, Feb 1, 2021	24.93	25.76	24.52	25.53
7222	NASDAQ	AMSC	Fri, Jan 29, 2021	25.88	26.20	24.46	24.72
7221	NASDAQ	AMSC	Thu, Jan 28, 2021	26.63	27.43	24.91	25.77
7220	NASDAQ	AMSC	Wed, Jan 27, 2021	27.06	28.00	26.00	26.41
7219	NASDAQ	AMSC	Tue, Jan 26, 2021	28.86	29.01	27.78	28.50
7218	NASDAQ	AMSC	Mon, Jan 25, 2021	29.67	30.76	27.51	28.17
7217	NASDAQ	AMSC	Fri, Jan 22, 2021	28.06	29.43	27.09	29.35
7216	NASDAQ	AMSC	Thu, Jan 21, 2021	26.80	28.75	25.90	28.32
7215	NASDAQ	AMSC	Wed, Jan 20, 2021	25.13	26.46	25.05	26.28
7214	NASDAQ	AMSC	Tue, Jan 19, 2021	24.56	25.43	24.07	25.02
7213	NASDAQ	AMSC	Fri, Jan 15, 2021	24.00	24.50	23.19	23.76
7212	NASDAQ	AMSC	Thu, Jan 14, 2021	26.59	26.85	23.76	24.49
7211	NASDAQ	AMSC	Wed, Jan 13, 2021	28.80	29.05	25.80	25.89
7210	NASDAQ	AMSC	Tue, Jan 12, 2021	29.20	29.60	28.30	28.78
7209	NASDAQ	AMSC	Mon, Jan 11, 2021	28.75	30.00	28.17	29.14
7208	NASDAQ	AMSC	Fri, Jan 8, 2021	30.80	31.78	29.06	29.38
7207	NASDAQ	AMSC	Thu, Jan 7, 2021	27.90	31.19	27.24	30.06
7206	NASDAQ	AMSC	Wed, Jan 6, 2021	25.59	27.60	25.52	26.93
7205	NASDAQ	AMSC	Tue, Jan 5, 2021	23.27	25.40	23.27	24.69
7204	NASDAQ	AMSC	Mon, Jan 4, 2021	23.46	24.37	22.77	23.36
7203	NASDAQ	AMSC	Thu, Dec 31, 2020	23.46	23.67	22.63	23.42
7202	NASDAQ	AMSC	Wed, Dec 30, 2020	21.90	23.41	21.90	23.23
7201	NASDAQ	AMSC	Tue, Dec 29, 2020	25.01	25.49	21.65	21.87
7200	NASDAQ	AMSC	Mon, Dec 28, 2020	25.51	25.77	24.73	25.10
7199	NASDAQ	AMSC	Thu, Dec 24, 2020	25.88	26.35	24.90	25.22
7198	NASDAQ	AMSC	Wed, Dec 23, 2020	25.26	26.44	24.80	25.76
7197	NASDAQ	AMSC	Tue, Dec 22, 2020	23.40	24.87	23.40	24.67
7196	NASDAQ	AMSC	Mon, Dec 21, 2020	22.30	23.42	22.06	23.19
7195	NASDAQ	AMSC	Fri, Dec 18, 2020	22.30	23.17	22.02	22.69
7194	NASDAQ	AMSC	Thu, Dec 17, 2020	22.07	22.77	21.81	22.02
7193	NASDAQ	AMSC	Wed, Dec 16, 2020	22.11	22.20	21.08	21.95
7192	NASDAQ	AMSC	Tue, Dec 15, 2020	20.32	21.85	20.22	21.67
7191	NASDAQ	AMSC	Mon, Dec 14, 2020	19.62	20.67	19.51	20.21
7190	NASDAQ	AMSC	Fri, Dec 11, 2020	19.42	20.30	18.99	19.47
7189	NASDAQ	AMSC	Thu, Dec 10, 2020	19.05	19.82	18.70	19.68
7188	NASDAQ	AMSC	Wed, Dec 9, 2020	20.39	20.50	18.75	19.18
7187	NASDAQ	AMSC	Tue, Dec 8, 2020	18.75	20.47	18.75	20.39
7186	NASDAQ	AMSC	Mon, Dec 7, 2020	19.00	19.40	18.55	18.71
7185	NASDAQ	AMSC	Fri, Dec 4, 2020	18.05	19.08	18.04	18.87
7184	NASDAQ	AMSC	Thu, Dec 3, 2020	17.93	18.25	17.56	18.02
7183	NASDAQ	AMSC	Wed, Dec 2, 2020	18.43	18.43	17.75	17.84
7182	NASDAQ	AMSC	Tue, Dec 1, 2020	19.99	20.03	18.46	18.70
7181	NASDAQ	AMSC	Mon, Nov 30, 2020	19.41	20.26	19.08	19.88
7180	NASDAQ	AMSC	Fri, Nov 27, 2020	19.36	20.14	19.22	19.52
7179	NASDAQ	AMSC	Wed, Nov 25, 2020	18.23	19.64	18.10	19.16
7178	NASDAQ	AMSC	Tue, Nov 24, 2020	17.90	18.83	17.43	18.42
7177	NASDAQ	AMSC	Mon, Nov 23, 2020	16.18	17.68	16.15	17.64
7176	NASDAQ	AMSC	Fri, Nov 20, 2020	15.34	16.04	15.30	16.00
7175	NASDAQ	AMSC	Thu, Nov 19, 2020	15.30	15.74	14.75	15.35
7174	NASDAQ	AMSC	Wed, Nov 18, 2020	15.18	15.78	15.17	15.32
7173	NASDAQ	AMSC	Tue, Nov 17, 2020	14.69	15.25	14.45	15.11
7172	NASDAQ	AMSC	Mon, Nov 16, 2020	14.35	15.13	14.15	14.70
7171	NASDAQ	AMSC	Fri, Nov 13, 2020	14.08	14.55	13.76	14.22
7170	NASDAQ	AMSC	Thu, Nov 12, 2020	13.89	14.28	13.71	13.92
7169	NASDAQ	AMSC	Wed, Nov 11, 2020	13.43	14.06	13.28	13.94
7168	NASDAQ	AMSC	Tue, Nov 10, 2020	13.37	13.66	13.14	13.40
7167	NASDAQ	AMSC	Mon, Nov 9, 2020	13.75	14.00	13.07	13.09
7166	NASDAQ	AMSC	Fri, Nov 6, 2020	13.65	14.02	12.90	13.33
7165	NASDAQ	AMSC	Thu, Nov 5, 2020	14.49	15.15	13.83	14.63
7164	NASDAQ	AMSC	Wed, Nov 4, 2020	14.94	15.03	14.32	14.58
7163	NASDAQ	AMSC	Tue, Nov 3, 2020	14.45	15.00	14.17	14.95
7162	NASDAQ	AMSC	Mon, Nov 2, 2020	14.12	14.35	13.77	14.26
7161	NASDAQ	AMSC	Fri, Oct 30, 2020	14.14	14.30	13.62	13.91
7160	NASDAQ	AMSC	Thu, Oct 29, 2020	14.34	14.52	13.95	14.18
7159	NASDAQ	AMSC	Wed, Oct 28, 2020	14.21	14.73	14.03	14.26
7158	NASDAQ	AMSC	Tue, Oct 27, 2020	14.64	14.83	14.37	14.60
7157	NASDAQ	AMSC	Mon, Oct 26, 2020	14.73	14.82	14.12	14.69
7156	NASDAQ	AMSC	Fri, Oct 23, 2020	15.25	15.43	14.72	15.03
7155	NASDAQ	AMSC	Thu, Oct 22, 2020	15.00	15.30	14.50	15.13
7154	NASDAQ	AMSC	Wed, Oct 21, 2020	17.48	17.55	16.78	17.10
7153	NASDAQ	AMSC	Tue, Oct 20, 2020	17.37	17.81	17.02	17.47
7152	NASDAQ	AMSC	Mon, Oct 19, 2020	17.75	17.80	17.14	17.22
7151	NASDAQ	AMSC	Fri, Oct 16, 2020	18.29	18.50	17.52	17.57
7150	NASDAQ	AMSC	Thu, Oct 15, 2020	17.77	18.48	17.51	18.25
7149	NASDAQ	AMSC	Wed, Oct 14, 2020	17.22	17.79	17.21	17.65
7148	NASDAQ	AMSC	Tue, Oct 13, 2020	17.01	17.65	16.88	17.29
7147	NASDAQ	AMSC	Mon, Oct 12, 2020	17.32	17.86	16.85	17.31
7146	NASDAQ	AMSC	Fri, Oct 9, 2020	16.58	17.25	16.38	17.01
7145	NASDAQ	AMSC	Thu, Oct 8, 2020	17.69	17.82	15.86	16.32
7144	NASDAQ	AMSC	Wed, Oct 7, 2020	16.24	17.84	16.18	17.54
7143	NASDAQ	AMSC	Tue, Oct 6, 2020	15.66	16.11	14.67	15.79
7142	NASDAQ	AMSC	Mon, Oct 5, 2020	14.59	15.40	14.51	14.85
7141	NASDAQ	AMSC	Fri, Oct 2, 2020	13.93	14.96	13.92	14.35
7140	NASDAQ	AMSC	Thu, Oct 1, 2020	14.37	14.81	13.91	14.23
7139	NASDAQ	AMSC	Wed, Sep 30, 2020	15.76	16.32	14.20	14.48
7138	NASDAQ	AMSC	Tue, Sep 29, 2020	15.00	16.47	15.00	16.03
7137	NASDAQ	AMSC	Mon, Sep 28, 2020	13.56	15.00	13.56	14.97
7136	NASDAQ	AMSC	Fri, Sep 25, 2020	11.95	13.61	11.93	13.38
7135	NASDAQ	AMSC	Thu, Sep 24, 2020	11.69	12.32	11.45	12.01
7134	NASDAQ	AMSC	Wed, Sep 23, 2020	11.82	12.06	11.68	11.70
7133	NASDAQ	AMSC	Tue, Sep 22, 2020	11.70	12.05	11.65	11.86
7132	NASDAQ	AMSC	Mon, Sep 21, 2020	12.04	12.18	11.54	11.63
7131	NASDAQ	AMSC	Fri, Sep 18, 2020	12.28	12.66	12.25	12.39
7130	NASDAQ	AMSC	Thu, Sep 17, 2020	12.27	12.31	11.91	12.14
7129	NASDAQ	AMSC	Wed, Sep 16, 2020	12.21	12.61	12.16	12.42
7128	NASDAQ	AMSC	Tue, Sep 15, 2020	12.36	12.45	12.15	12.17
7127	NASDAQ	AMSC	Mon, Sep 14, 2020	11.99	12.24	11.90	12.18
7126	NASDAQ	AMSC	Fri, Sep 11, 2020	11.85	12.02	11.80	11.91
7125	NASDAQ	AMSC	Thu, Sep 10, 2020	12.09	12.30	11.79	11.85
7124	NASDAQ	AMSC	Wed, Sep 9, 2020	11.50	12.15	11.42	12.08
7123	NASDAQ	AMSC	Tue, Sep 8, 2020	11.69	11.70	11.23	11.40
7122	NASDAQ	AMSC	Fri, Sep 4, 2020	12.50	12.50	11.63	11.96
7121	NASDAQ	AMSC	Thu, Sep 3, 2020	13.03	13.03	12.03	12.25
7120	NASDAQ	AMSC	Wed, Sep 2, 2020	12.99	13.09	12.72	13.01
7119	NASDAQ	AMSC	Tue, Sep 1, 2020	12.55	13.04	12.41	13.01
7118	NASDAQ	AMSC	Mon, Aug 31, 2020	12.65	12.79	12.41	12.56
7117	NASDAQ	AMSC	Fri, Aug 28, 2020	12.80	12.94	12.33	12.79
7116	NASDAQ	AMSC	Thu, Aug 27, 2020	13.01	13.17	12.42	12.65
7115	NASDAQ	AMSC	Wed, Aug 26, 2020	13.25	13.29	12.86	12.90
7114	NASDAQ	AMSC	Tue, Aug 25, 2020	13.09	13.24	12.71	13.15
7113	NASDAQ	AMSC	Mon, Aug 24, 2020	12.90	13.40	12.84	13.06
7112	NASDAQ	AMSC	Fri, Aug 21, 2020	12.66	12.92	12.30	12.84
7111	NASDAQ	AMSC	Thu, Aug 20, 2020	12.73	12.73	12.34	12.65
7110	NASDAQ	AMSC	Wed, Aug 19, 2020	13.17	13.24	12.61	12.87
7109	NASDAQ	AMSC	Tue, Aug 18, 2020	12.30	13.24	12.29	13.05
7108	NASDAQ	AMSC	Mon, Aug 17, 2020	11.93	12.35	11.90	12.31
7107	NASDAQ	AMSC	Fri, Aug 14, 2020	12.22	12.34	12.13	12.28
7106	NASDAQ	AMSC	Thu, Aug 13, 2020	12.14	12.42	12.05	12.22
7105	NASDAQ	AMSC	Wed, Aug 12, 2020	11.88	12.44	11.79	12.14
7104	NASDAQ	AMSC	Tue, Aug 11, 2020	12.09	12.58	11.57	11.71
7103	NASDAQ	AMSC	Mon, Aug 10, 2020	11.48	12.33	11.48	11.87
7102	NASDAQ	AMSC	Fri, Aug 7, 2020	11.38	11.98	11.25	11.51
7101	NASDAQ	AMSC	Thu, Aug 6, 2020	10.96	11.30	10.34	11.28
7100	NASDAQ	AMSC	Wed, Aug 5, 2020	10.01	10.46	9.98	10.38
7099	NASDAQ	AMSC	Tue, Aug 4, 2020	9.62	10.01	9.56	10.01
7098	NASDAQ	AMSC	Mon, Aug 3, 2020	9.35	9.69	9.35	9.67
7097	NASDAQ	AMSC	Fri, Jul 31, 2020	9.32	9.51	8.96	9.30
7096	NASDAQ	AMSC	Thu, Jul 30, 2020	9.55	9.71	9.11	9.33
7095	NASDAQ	AMSC	Wed, Jul 29, 2020	9.71	9.77	9.50	9.70
7094	NASDAQ	AMSC	Tue, Jul 28, 2020	9.70	9.92	9.59	9.64
7093	NASDAQ	AMSC	Mon, Jul 27, 2020	9.52	9.78	9.49	9.74
7092	NASDAQ	AMSC	Fri, Jul 24, 2020	9.36	9.59	9.31	9.44
7091	NASDAQ	AMSC	Thu, Jul 23, 2020	9.46	9.96	9.41	9.52
7090	NASDAQ	AMSC	Wed, Jul 22, 2020	9.30	9.44	9.12	9.43
7089	NASDAQ	AMSC	Tue, Jul 21, 2020	9.26	9.48	9.26	9.38
7088	NASDAQ	AMSC	Mon, Jul 20, 2020	9.25	9.26	9.10	9.20
7087	NASDAQ	AMSC	Fri, Jul 17, 2020	9.19	9.26	9.12	9.21
7086	NASDAQ	AMSC	Thu, Jul 16, 2020	9.05	9.23	9.01	9.17
7085	NASDAQ	AMSC	Wed, Jul 15, 2020	9.14	9.26	8.92	9.16
7084	NASDAQ	AMSC	Tue, Jul 14, 2020	8.82	9.01	8.33	8.95
7083	NASDAQ	AMSC	Mon, Jul 13, 2020	9.10	9.27	8.57	8.62
7082	NASDAQ	AMSC	Fri, Jul 10, 2020	8.50	8.98	8.33	8.97
7081	NASDAQ	AMSC	Thu, Jul 9, 2020	8.26	8.56	8.16	8.53
7080	NASDAQ	AMSC	Wed, Jul 8, 2020	7.96	8.27	7.51	8.26
7079	NASDAQ	AMSC	Tue, Jul 7, 2020	7.97	8.50	7.92	7.95
7078	NASDAQ	AMSC	Mon, Jul 6, 2020	7.89	8.15	7.78	8.07
7077	NASDAQ	AMSC	Thu, Jul 2, 2020	7.87	7.92	7.62	7.82
7076	NASDAQ	AMSC	Wed, Jul 1, 2020	8.16	8.23	7.62	7.70
7075	NASDAQ	AMSC	Tue, Jun 30, 2020	7.61	8.16	7.61	8.13
7074	NASDAQ	AMSC	Mon, Jun 29, 2020	7.36	7.67	7.25	7.64
7073	NASDAQ	AMSC	Fri, Jun 26, 2020	7.33	7.41	7.08	7.28
7072	NASDAQ	AMSC	Thu, Jun 25, 2020	7.31	7.43	7.17	7.38
7071	NASDAQ	AMSC	Wed, Jun 24, 2020	7.65	7.70	7.28	7.36
7070	NASDAQ	AMSC	Tue, Jun 23, 2020	7.87	7.89	7.64	7.71
7069	NASDAQ	AMSC	Mon, Jun 22, 2020	7.88	7.90	7.52	7.73
7068	NASDAQ	AMSC	Fri, Jun 19, 2020	7.78	8.21	7.70	7.85
7067	NASDAQ	AMSC	Thu, Jun 18, 2020	7.55	7.82	7.51	7.69
7066	NASDAQ	AMSC	Wed, Jun 17, 2020	7.81	7.89	7.44	7.60
7065	NASDAQ	AMSC	Tue, Jun 16, 2020	7.84	7.98	7.50	7.84
7064	NASDAQ	AMSC	Mon, Jun 15, 2020	7.07	7.59	6.91	7.52
7063	NASDAQ	AMSC	Fri, Jun 12, 2020	7.28	7.37	6.95	7.21
7062	NASDAQ	AMSC	Thu, Jun 11, 2020	7.50	7.59	6.90	6.99
7061	NASDAQ	AMSC	Wed, Jun 10, 2020	8.07	8.07	7.60	7.79
7060	NASDAQ	AMSC	Tue, Jun 9, 2020	8.11	8.22	7.93	8.03
7059	NASDAQ	AMSC	Mon, Jun 8, 2020	8.14	8.40	8.06	8.23
7058	NASDAQ	AMSC	Fri, Jun 5, 2020	8.22	8.88	7.93	7.96
7057	NASDAQ	AMSC	Thu, Jun 4, 2020	7.25	8.25	7.20	8.22
7056	NASDAQ	AMSC	Wed, Jun 3, 2020	7.99	8.03	7.13	7.23
7055	NASDAQ	AMSC	Tue, Jun 2, 2020	7.70	7.97	7.51	7.91
7054	NASDAQ	AMSC	Mon, Jun 1, 2020	7.38	7.75	7.09	7.70
7053	NASDAQ	AMSC	Fri, May 29, 2020	7.49	7.64	6.95	7.25
7052	NASDAQ	AMSC	Thu, May 28, 2020	7.66	7.97	7.46	7.52
7051	NASDAQ	AMSC	Wed, May 27, 2020	7.03	7.52	6.83	7.49
7050	NASDAQ	AMSC	Tue, May 26, 2020	6.89	7.03	6.76	6.87
7049	NASDAQ	AMSC	Fri, May 22, 2020	6.53	6.86	6.48	6.66
7048	NASDAQ	AMSC	Thu, May 21, 2020	6.18	6.52	6.15	6.51
7047	NASDAQ	AMSC	Wed, May 20, 2020	6.16	6.27	6.05	6.16
7046	NASDAQ	AMSC	Tue, May 19, 2020	6.23	6.24	6.07	6.10
7045	NASDAQ	AMSC	Mon, May 18, 2020	6.18	6.25	6.03	6.23
7044	NASDAQ	AMSC	Fri, May 15, 2020	5.81	5.95	5.74	5.84
7043	NASDAQ	AMSC	Thu, May 14, 2020	5.98	5.98	5.68	5.83
7042	NASDAQ	AMSC	Wed, May 13, 2020	5.93	6.06	5.82	6.02
7041	NASDAQ	AMSC	Tue, May 12, 2020	6.06	6.19	5.81	5.96
7040	NASDAQ	AMSC	Mon, May 11, 2020	6.05	6.16	5.91	6.01
7039	NASDAQ	AMSC	Fri, May 8, 2020	5.97	6.16	5.91	6.05
7038	NASDAQ	AMSC	Thu, May 7, 2020	6.08	6.08	5.82	5.87
7037	NASDAQ	AMSC	Wed, May 6, 2020	6.11	6.16	5.96	5.97
7036	NASDAQ	AMSC	Tue, May 5, 2020	6.11	6.35	6.02	6.07
7035	NASDAQ	AMSC	Mon, May 4, 2020	5.72	6.00	5.55	5.92
7034	NASDAQ	AMSC	Fri, May 1, 2020	5.63	5.71	5.18	5.68
7033	NASDAQ	AMSC	Thu, Apr 30, 2020	5.76	5.85	5.65	5.75
7032	NASDAQ	AMSC	Wed, Apr 29, 2020	5.70	6.15	5.63	5.90
7031	NASDAQ	AMSC	Tue, Apr 28, 2020	5.79	5.80	5.43	5.61
7030	NASDAQ	AMSC	Mon, Apr 27, 2020	5.35	5.66	5.35	5.64
7029	NASDAQ	AMSC	Fri, Apr 24, 2020	5.27	5.39	5.12	5.38
7028	NASDAQ	AMSC	Thu, Apr 23, 2020	5.18	5.40	5.14	5.23
7027	NASDAQ	AMSC	Wed, Apr 22, 2020	5.33	5.33	5.10	5.16
7026	NASDAQ	AMSC	Tue, Apr 21, 2020	5.24	5.32	5.09	5.19
7025	NASDAQ	AMSC	Mon, Apr 20, 2020	5.41	5.57	5.22	5.36
7024	NASDAQ	AMSC	Fri, Apr 17, 2020	5.53	5.75	5.34	5.53
7023	NASDAQ	AMSC	Thu, Apr 16, 2020	5.49	5.56	5.12	5.37
7022	NASDAQ	AMSC	Wed, Apr 15, 2020	5.63	5.63	5.33	5.48
7021	NASDAQ	AMSC	Tue, Apr 14, 2020	5.97	6.23	5.80	5.84
7020	NASDAQ	AMSC	Mon, Apr 13, 2020	5.98	6.02	5.73	5.77
7019	NASDAQ	AMSC	Thu, Apr 9, 2020	6.06	6.16	5.75	5.94
7018	NASDAQ	AMSC	Wed, Apr 8, 2020	5.75	6.06	5.65	5.87
7017	NASDAQ	AMSC	Tue, Apr 7, 2020	5.98	6.00	5.48	5.62
7016	NASDAQ	AMSC	Mon, Apr 6, 2020	5.80	6.09	5.66	5.82
7015	NASDAQ	AMSC	Fri, Apr 3, 2020	5.57	5.69	5.41	5.58
7014	NASDAQ	AMSC	Thu, Apr 2, 2020	5.27	5.77	5.21	5.64
7013	NASDAQ	AMSC	Wed, Apr 1, 2020	5.24	5.35	5.11	5.24
7012	NASDAQ	AMSC	Tue, Mar 31, 2020	5.28	5.51	5.14	5.48
7011	NASDAQ	AMSC	Mon, Mar 30, 2020	5.33	5.44	5.00	5.30
7010	NASDAQ	AMSC	Fri, Mar 27, 2020	5.46	5.60	5.12	5.22
7009	NASDAQ	AMSC	Thu, Mar 26, 2020	5.48	5.72	5.41	5.68
7008	NASDAQ	AMSC	Wed, Mar 25, 2020	5.50	5.73	5.20	5.43
7007	NASDAQ	AMSC	Tue, Mar 24, 2020	5.01	5.53	4.87	5.48
7006	NASDAQ	AMSC	Mon, Mar 23, 2020	4.83	4.83	4.40	4.76
7005	NASDAQ	AMSC	Fri, Mar 20, 2020	4.76	5.09	4.57	4.64
7004	NASDAQ	AMSC	Thu, Mar 19, 2020	4.71	5.01	4.52	4.72
7003	NASDAQ	AMSC	Wed, Mar 18, 2020	5.22	5.54	4.66	4.70
7002	NASDAQ	AMSC	Tue, Mar 17, 2020	4.94	5.71	4.88	5.62
7001	NASDAQ	AMSC	Mon, Mar 16, 2020	5.00	5.52	4.90	4.96
7000	NASDAQ	AMSC	Fri, Mar 13, 2020	5.50	5.59	4.96	5.45
6999	NASDAQ	AMSC	Thu, Mar 12, 2020	5.16	5.67	5.00	5.21
6998	NASDAQ	AMSC	Wed, Mar 11, 2020	6.12	6.26	5.50	5.71
6997	NASDAQ	AMSC	Tue, Mar 10, 2020	6.57	6.67	6.05	6.34
6996	NASDAQ	AMSC	Mon, Mar 9, 2020	6.47	7.17	6.23	6.26
6995	NASDAQ	AMSC	Fri, Mar 6, 2020	7.03	7.15	6.78	7.02
6994	NASDAQ	AMSC	Thu, Mar 5, 2020	7.19	7.36	7.07	7.36
6993	NASDAQ	AMSC	Wed, Mar 4, 2020	7.36	7.48	7.14	7.42
6992	NASDAQ	AMSC	Tue, Mar 3, 2020	7.29	7.58	7.01	7.19
6991	NASDAQ	AMSC	Mon, Mar 2, 2020	6.95	7.28	6.75	7.28
6990	NASDAQ	AMSC	Fri, Feb 28, 2020	6.54	6.90	6.50	6.85
6989	NASDAQ	AMSC	Thu, Feb 27, 2020	7.49	7.51	6.83	6.85
6988	NASDAQ	AMSC	Wed, Feb 26, 2020	7.40	7.75	7.34	7.73
6987	NASDAQ	AMSC	Tue, Feb 25, 2020	8.16	8.16	7.32	7.34
6986	NASDAQ	AMSC	Mon, Feb 24, 2020	7.70	8.25	7.63	8.15
6985	NASDAQ	AMSC	Fri, Feb 21, 2020	8.27	8.30	7.96	8.09
6984	NASDAQ	AMSC	Thu, Feb 20, 2020	8.12	8.49	8.12	8.31
6983	NASDAQ	AMSC	Wed, Feb 19, 2020	7.76	8.22	7.54	8.05
6982	NASDAQ	AMSC	Tue, Feb 18, 2020	7.80	7.97	7.67	7.72
6981	NASDAQ	AMSC	Fri, Feb 14, 2020	8.00	8.12	7.80	7.88
6980	NASDAQ	AMSC	Thu, Feb 13, 2020	7.77	8.03	7.62	7.96
6979	NASDAQ	AMSC	Wed, Feb 12, 2020	7.42	7.87	7.42	7.80
6978	NASDAQ	AMSC	Tue, Feb 11, 2020	7.16	7.67	7.08	7.39
6977	NASDAQ	AMSC	Mon, Feb 10, 2020	7.08	7.36	6.98	7.24
6976	NASDAQ	AMSC	Fri, Feb 7, 2020	7.23	7.36	7.05	7.07
6975	NASDAQ	AMSC	Thu, Feb 6, 2020	6.14	8.60	6.12	7.32
6974	NASDAQ	AMSC	Wed, Feb 5, 2020	6.44	6.94	6.39	6.88
6973	NASDAQ	AMSC	Tue, Feb 4, 2020	6.60	6.61	6.30	6.30
6972	NASDAQ	AMSC	Mon, Feb 3, 2020	6.35	6.60	6.29	6.43
6971	NASDAQ	AMSC	Fri, Jan 31, 2020	6.55	6.57	6.12	6.28
6970	NASDAQ	AMSC	Thu, Jan 30, 2020	6.79	6.86	6.49	6.55
6969	NASDAQ	AMSC	Wed, Jan 29, 2020	7.25	7.26	6.76	6.90
6968	NASDAQ	AMSC	Tue, Jan 28, 2020	7.65	7.72	7.13	7.17
6967	NASDAQ	AMSC	Mon, Jan 27, 2020	7.69	7.82	7.41	7.56
6966	NASDAQ	AMSC	Fri, Jan 24, 2020	7.58	8.38	7.56	7.87
6965	NASDAQ	AMSC	Thu, Jan 23, 2020	7.55	7.61	7.26	7.32
6964	NASDAQ	AMSC	Wed, Jan 22, 2020	8.22	8.27	7.56	7.61
6963	NASDAQ	AMSC	Tue, Jan 21, 2020	7.95	8.22	7.87	8.21
6962	NASDAQ	AMSC	Fri, Jan 17, 2020	7.86	7.95	7.81	7.88
6961	NASDAQ	AMSC	Thu, Jan 16, 2020	7.69	7.98	7.68	7.81
6960	NASDAQ	AMSC	Wed, Jan 15, 2020	7.58	7.71	7.50	7.58
6959	NASDAQ	AMSC	Tue, Jan 14, 2020	7.42	7.78	7.40	7.62
6958	NASDAQ	AMSC	Mon, Jan 13, 2020	7.24	7.54	7.11	7.45
6957	NASDAQ	AMSC	Fri, Jan 10, 2020	7.44	7.44	7.12	7.24
6956	NASDAQ	AMSC	Thu, Jan 9, 2020	7.46	7.53	7.40	7.40
6955	NASDAQ	AMSC	Wed, Jan 8, 2020	7.54	7.57	7.31	7.41
6954	NASDAQ	AMSC	Tue, Jan 7, 2020	7.63	7.66	7.47	7.56
6953	NASDAQ	AMSC	Mon, Jan 6, 2020	7.61	7.77	7.55	7.68
6952	NASDAQ	AMSC	Fri, Jan 3, 2020	7.73	7.78	7.62	7.68
6951	NASDAQ	AMSC	Thu, Jan 2, 2020	7.94	7.94	7.70	7.89
6950	NASDAQ	AMSC	Tue, Dec 31, 2019	7.87	7.98	7.80	7.85
6949	NASDAQ	AMSC	Mon, Dec 30, 2019	8.01	8.13	7.75	7.88
6948	NASDAQ	AMSC	Fri, Dec 27, 2019	8.23	8.38	7.98	8.02
6947	NASDAQ	AMSC	Thu, Dec 26, 2019	8.08	8.19	7.99	8.15
6946	NASDAQ	AMSC	Tue, Dec 24, 2019	7.84	8.13	7.83	8.07
6945	NASDAQ	AMSC	Mon, Dec 23, 2019	7.66	7.90	7.65	7.84
6944	NASDAQ	AMSC	Fri, Dec 20, 2019	7.76	7.76	7.53	7.72
6943	NASDAQ	AMSC	Thu, Dec 19, 2019	7.55	7.81	7.52	7.75
6942	NASDAQ	AMSC	Wed, Dec 18, 2019	7.74	7.80	7.50	7.52
6941	NASDAQ	AMSC	Tue, Dec 17, 2019	7.82	7.82	7.67	7.70
6940	NASDAQ	AMSC	Mon, Dec 16, 2019	7.96	7.96	7.70	7.76
6939	NASDAQ	AMSC	Fri, Dec 13, 2019	7.81	8.08	7.78	7.90
6938	NASDAQ	AMSC	Thu, Dec 12, 2019	7.61	7.88	7.61	7.77
6937	NASDAQ	AMSC	Wed, Dec 11, 2019	7.63	7.71	7.36	7.52
6936	NASDAQ	AMSC	Tue, Dec 10, 2019	7.83	7.85	7.60	7.61
6935	NASDAQ	AMSC	Mon, Dec 9, 2019	7.87	7.94	7.75	7.83
6934	NASDAQ	AMSC	Fri, Dec 6, 2019	7.61	7.94	7.60	7.87
6933	NASDAQ	AMSC	Thu, Dec 5, 2019	7.66	7.68	7.33	7.53
6932	NASDAQ	AMSC	Wed, Dec 4, 2019	7.94	7.98	7.52	7.62
6931	NASDAQ	AMSC	Tue, Dec 3, 2019	7.74	7.91	7.63	7.83
6930	NASDAQ	AMSC	Mon, Dec 2, 2019	8.40	8.40	7.81	7.90
6929	NASDAQ	AMSC	Fri, Nov 29, 2019	8.51	8.57	8.26	8.35
6928	NASDAQ	AMSC	Wed, Nov 27, 2019	8.52	8.60	8.42	8.60
6927	NASDAQ	AMSC	Tue, Nov 26, 2019	8.73	8.77	8.41	8.49
6926	NASDAQ	AMSC	Mon, Nov 25, 2019	8.80	9.09	8.52	8.62
6925	NASDAQ	AMSC	Fri, Nov 22, 2019	8.03	8.73	7.68	8.70
6924	NASDAQ	AMSC	Thu, Nov 21, 2019	8.05	8.05	7.70	8.05
6923	NASDAQ	AMSC	Wed, Nov 20, 2019	8.03	8.15	7.87	8.01
6922	NASDAQ	AMSC	Tue, Nov 19, 2019	7.85	8.16	7.65	8.03
6921	NASDAQ	AMSC	Mon, Nov 18, 2019	7.89	8.06	7.67	7.76
6920	NASDAQ	AMSC	Fri, Nov 15, 2019	7.58	7.98	7.51	7.78
6919	NASDAQ	AMSC	Thu, Nov 14, 2019	7.51	7.57	7.31	7.48
6918	NASDAQ	AMSC	Wed, Nov 13, 2019	7.61	7.93	7.47	7.51
6917	NASDAQ	AMSC	Tue, Nov 12, 2019	7.51	7.94	7.51	7.67
6916	NASDAQ	AMSC	Mon, Nov 11, 2019	7.89	8.02	7.42	7.61
6915	NASDAQ	AMSC	Fri, Nov 8, 2019	7.98	8.13	7.89	7.93
6914	NASDAQ	AMSC	Thu, Nov 7, 2019	8.18	8.23	7.91	8.05
6913	NASDAQ	AMSC	Wed, Nov 6, 2019	8.79	9.34	7.90	8.05
6912	NASDAQ	AMSC	Tue, Nov 5, 2019	8.26	8.64	8.23	8.36
6911	NASDAQ	AMSC	Mon, Nov 4, 2019	8.26	8.62	8.20	8.23
6910	NASDAQ	AMSC	Fri, Nov 1, 2019	7.91	8.31	7.84	8.08
6909	NASDAQ	AMSC	Thu, Oct 31, 2019	8.29	8.33	7.72	7.83
6908	NASDAQ	AMSC	Wed, Oct 30, 2019	8.37	8.37	8.13	8.32
6907	NASDAQ	AMSC	Tue, Oct 29, 2019	8.74	8.76	8.24	8.36
6906	NASDAQ	AMSC	Mon, Oct 28, 2019	9.23	9.30	8.66	8.74
6905	NASDAQ	AMSC	Fri, Oct 25, 2019	9.13	9.48	9.11	9.30
6904	NASDAQ	AMSC	Thu, Oct 24, 2019	9.57	9.57	9.09	9.10
6903	NASDAQ	AMSC	Wed, Oct 23, 2019	9.20	9.82	9.09	9.47
6902	NASDAQ	AMSC	Tue, Oct 22, 2019	8.52	9.17	8.51	9.05
6901	NASDAQ	AMSC	Mon, Oct 21, 2019	8.40	8.56	8.35	8.52
6900	NASDAQ	AMSC	Fri, Oct 18, 2019	8.19	8.36	8.12	8.27
6899	NASDAQ	AMSC	Thu, Oct 17, 2019	8.23	8.43	8.21	8.24
6898	NASDAQ	AMSC	Wed, Oct 16, 2019	8.18	8.44	8.11	8.19
6897	NASDAQ	AMSC	Tue, Oct 15, 2019	8.07	8.40	7.95	8.25
6896	NASDAQ	AMSC	Mon, Oct 14, 2019	8.31	8.32	8.03	8.06
6895	NASDAQ	AMSC	Fri, Oct 11, 2019	8.22	8.41	8.20	8.31
6894	NASDAQ	AMSC	Thu, Oct 10, 2019	8.12	8.35	7.98	8.04
6893	NASDAQ	AMSC	Wed, Oct 9, 2019	7.88	8.24	7.88	8.03
6892	NASDAQ	AMSC	Tue, Oct 8, 2019	7.66	7.89	7.60	7.84
6891	NASDAQ	AMSC	Mon, Oct 7, 2019	7.78	7.91	7.73	7.77
6890	NASDAQ	AMSC	Fri, Oct 4, 2019	7.64	7.83	7.57	7.82
6889	NASDAQ	AMSC	Thu, Oct 3, 2019	7.70	7.76	7.24	7.64
6888	NASDAQ	AMSC	Wed, Oct 2, 2019	7.57	7.83	7.46	7.74
6887	NASDAQ	AMSC	Tue, Oct 1, 2019	7.88	8.10	7.55	7.62
6886	NASDAQ	AMSC	Mon, Sep 30, 2019	7.87	7.98	7.64	7.84
6885	NASDAQ	AMSC	Fri, Sep 27, 2019	7.83	7.99	7.69	7.84
6884	NASDAQ	AMSC	Thu, Sep 26, 2019	7.94	7.95	7.66	7.76
6883	NASDAQ	AMSC	Wed, Sep 25, 2019	8.12	8.34	7.80	7.96
6882	NASDAQ	AMSC	Tue, Sep 24, 2019	8.72	8.80	8.09	8.18
6881	NASDAQ	AMSC	Mon, Sep 23, 2019	8.96	9.02	8.55	8.72
6880	NASDAQ	AMSC	Fri, Sep 20, 2019	8.64	9.30	8.47	9.07
6879	NASDAQ	AMSC	Thu, Sep 19, 2019	8.67	8.90	8.64	8.68
6878	NASDAQ	AMSC	Wed, Sep 18, 2019	8.88	9.00	8.46	8.64
6877	NASDAQ	AMSC	Tue, Sep 17, 2019	8.72	9.07	8.45	8.91
6876	NASDAQ	AMSC	Mon, Sep 16, 2019	8.73	8.95	8.54	8.75
6875	NASDAQ	AMSC	Fri, Sep 13, 2019	8.95	9.24	8.79	8.84
6874	NASDAQ	AMSC	Thu, Sep 12, 2019	9.65	9.72	8.88	8.94
6873	NASDAQ	AMSC	Wed, Sep 11, 2019	8.78	9.99	8.53	9.64
6872	NASDAQ	AMSC	Tue, Sep 10, 2019	8.36	8.83	8.24	8.67
6871	NASDAQ	AMSC	Mon, Sep 9, 2019	7.91	8.36	7.75	8.35
6870	NASDAQ	AMSC	Fri, Sep 6, 2019	7.73	8.07	7.68	7.87
6869	NASDAQ	AMSC	Thu, Sep 5, 2019	7.55	7.73	7.37	7.66
6868	NASDAQ	AMSC	Wed, Sep 4, 2019	7.48	7.57	7.32	7.40
6867	NASDAQ	AMSC	Tue, Sep 3, 2019	7.63	7.68	7.35	7.37
6866	NASDAQ	AMSC	Fri, Aug 30, 2019	7.84	7.90	7.64	7.67
6865	NASDAQ	AMSC	Thu, Aug 29, 2019	7.64	7.79	7.54	7.77
6864	NASDAQ	AMSC	Wed, Aug 28, 2019	7.45	7.73	7.27	7.58
6863	NASDAQ	AMSC	Tue, Aug 27, 2019	7.68	7.68	7.28	7.45
6862	NASDAQ	AMSC	Mon, Aug 26, 2019	7.61	7.74	7.50	7.61
6861	NASDAQ	AMSC	Fri, Aug 23, 2019	7.67	7.83	7.41	7.50
6860	NASDAQ	AMSC	Thu, Aug 22, 2019	8.23	8.37	7.75	7.86
6859	NASDAQ	AMSC	Wed, Aug 21, 2019	7.97	8.29	7.97	8.20
6858	NASDAQ	AMSC	Tue, Aug 20, 2019	8.03	8.07	7.77	7.85
6857	NASDAQ	AMSC	Mon, Aug 19, 2019	8.00	8.27	7.94	8.12
6856	NASDAQ	AMSC	Fri, Aug 16, 2019	7.47	7.94	7.39	7.92
6855	NASDAQ	AMSC	Thu, Aug 15, 2019	7.33	7.62	7.33	7.54
6854	NASDAQ	AMSC	Wed, Aug 14, 2019	7.66	7.70	7.33	7.47
6853	NASDAQ	AMSC	Tue, Aug 13, 2019	7.77	8.04	7.65	7.84
6852	NASDAQ	AMSC	Mon, Aug 12, 2019	8.07	8.12	7.81	7.81
6851	NASDAQ	AMSC	Fri, Aug 9, 2019	8.47	8.52	8.10	8.10
6850	NASDAQ	AMSC	Thu, Aug 8, 2019	8.64	8.75	8.29	8.55
6849	NASDAQ	AMSC	Wed, Aug 7, 2019	7.85	8.80	7.32	8.60
6848	NASDAQ	AMSC	Tue, Aug 6, 2019	7.54	7.77	7.26	7.57
6847	NASDAQ	AMSC	Mon, Aug 5, 2019	7.84	8.03	7.30	7.51
6846	NASDAQ	AMSC	Fri, Aug 2, 2019	8.49	8.61	7.97	8.06
6845	NASDAQ	AMSC	Thu, Aug 1, 2019	8.91	9.09	8.50	8.51
6844	NASDAQ	AMSC	Wed, Jul 31, 2019	9.03	9.27	8.89	8.89
6843	NASDAQ	AMSC	Tue, Jul 30, 2019	8.70	9.07	8.69	9.01
6842	NASDAQ	AMSC	Mon, Jul 29, 2019	8.80	8.92	8.49	8.78
6841	NASDAQ	AMSC	Fri, Jul 26, 2019	8.61	8.90	8.58	8.81
6840	NASDAQ	AMSC	Thu, Jul 25, 2019	8.95	8.95	8.56	8.59
6839	NASDAQ	AMSC	Wed, Jul 24, 2019	9.03	9.10	8.88	8.95
6838	NASDAQ	AMSC	Tue, Jul 23, 2019	9.21	9.23	8.98	9.05
6837	NASDAQ	AMSC	Mon, Jul 22, 2019	9.00	9.18	8.76	9.14
6836	NASDAQ	AMSC	Fri, Jul 19, 2019	9.37	9.43	8.88	8.94
6835	NASDAQ	AMSC	Thu, Jul 18, 2019	9.38	9.48	9.25	9.39
6834	NASDAQ	AMSC	Wed, Jul 17, 2019	9.35	9.51	9.29	9.40
6833	NASDAQ	AMSC	Tue, Jul 16, 2019	9.18	9.44	9.15	9.35
6832	NASDAQ	AMSC	Mon, Jul 15, 2019	9.61	9.70	9.21	9.26
6831	NASDAQ	AMSC	Fri, Jul 12, 2019	9.28	9.60	9.13	9.55
6830	NASDAQ	AMSC	Thu, Jul 11, 2019	9.50	9.56	9.15	9.24
6829	NASDAQ	AMSC	Wed, Jul 10, 2019	9.31	9.58	9.14	9.46
6828	NASDAQ	AMSC	Tue, Jul 9, 2019	9.91	9.92	8.96	9.25
6827	NASDAQ	AMSC	Mon, Jul 8, 2019	9.58	10.19	9.51	9.96
6826	NASDAQ	AMSC	Fri, Jul 5, 2019	9.60	9.79	9.37	9.64
6825	NASDAQ	AMSC	Wed, Jul 3, 2019	9.50	9.74	9.47	9.67
6824	NASDAQ	AMSC	Tue, Jul 2, 2019	10.10	10.18	9.37	9.55
6823	NASDAQ	AMSC	Mon, Jul 1, 2019	9.42	10.46	9.41	10.11
6822	NASDAQ	AMSC	Fri, Jun 28, 2019	8.75	9.35	8.70	9.28
6821	NASDAQ	AMSC	Thu, Jun 27, 2019	8.46	8.79	8.38	8.76
6820	NASDAQ	AMSC	Wed, Jun 26, 2019	8.37	8.55	8.26	8.43
6819	NASDAQ	AMSC	Tue, Jun 25, 2019	8.29	8.37	8.15	8.34
6818	NASDAQ	AMSC	Mon, Jun 24, 2019	8.58	8.65	8.17	8.29
6817	NASDAQ	AMSC	Fri, Jun 21, 2019	8.42	8.63	8.25	8.59
6816	NASDAQ	AMSC	Thu, Jun 20, 2019	8.60	8.70	8.24	8.40
6815	NASDAQ	AMSC	Wed, Jun 19, 2019	8.60	8.67	8.32	8.56
6814	NASDAQ	AMSC	Tue, Jun 18, 2019	8.37	8.76	8.25	8.57
6813	NASDAQ	AMSC	Mon, Jun 17, 2019	8.48	8.55	8.25	8.33
6812	NASDAQ	AMSC	Fri, Jun 14, 2019	8.72	8.78	8.37	8.48
6811	NASDAQ	AMSC	Thu, Jun 13, 2019	8.69	8.89	8.47	8.79
6810	NASDAQ	AMSC	Wed, Jun 12, 2019	8.30	8.78	8.11	8.62
6809	NASDAQ	AMSC	Tue, Jun 11, 2019	8.29	8.55	8.08	8.31
6808	NASDAQ	AMSC	Mon, Jun 10, 2019	8.40	8.58	8.19	8.23
6807	NASDAQ	AMSC	Fri, Jun 7, 2019	8.32	8.53	8.13	8.28
6806	NASDAQ	AMSC	Thu, Jun 6, 2019	9.71	10.11	8.09	8.31
6805	NASDAQ	AMSC	Wed, Jun 5, 2019	9.98	10.14	9.60	10.08
6804	NASDAQ	AMSC	Tue, Jun 4, 2019	9.93	10.14	9.57	9.91
6803	NASDAQ	AMSC	Mon, Jun 3, 2019	9.70	10.20	9.67	9.81
6802	NASDAQ	AMSC	Fri, May 31, 2019	10.30	10.30	9.68	9.73
6801	NASDAQ	AMSC	Thu, May 30, 2019	10.65	10.82	10.31	10.45
6800	NASDAQ	AMSC	Wed, May 29, 2019	10.95	11.08	10.51	10.62
6799	NASDAQ	AMSC	Tue, May 28, 2019	10.67	11.11	10.54	11.05
6798	NASDAQ	AMSC	Fri, May 24, 2019	10.48	10.94	10.48	10.68
6797	NASDAQ	AMSC	Thu, May 23, 2019	10.51	10.56	9.90	10.44
6796	NASDAQ	AMSC	Wed, May 22, 2019	11.39	11.39	10.53	10.60
6795	NASDAQ	AMSC	Tue, May 21, 2019	11.18	11.86	11.18	11.40
6794	NASDAQ	AMSC	Mon, May 20, 2019	11.05	11.19	10.87	11.12
6793	NASDAQ	AMSC	Fri, May 17, 2019	11.13	11.23	10.98	11.14
6792	NASDAQ	AMSC	Thu, May 16, 2019	11.21	11.52	11.20	11.27
6791	NASDAQ	AMSC	Wed, May 15, 2019	10.95	11.48	10.88	11.20
6790	NASDAQ	AMSC	Tue, May 14, 2019	10.56	11.20	10.56	11.00
6789	NASDAQ	AMSC	Mon, May 13, 2019	10.78	10.99	10.37	10.66
6788	NASDAQ	AMSC	Fri, May 10, 2019	10.94	11.18	10.73	11.09
6787	NASDAQ	AMSC	Thu, May 9, 2019	10.90	11.14	10.65	11.02
6786	NASDAQ	AMSC	Wed, May 8, 2019	11.04	11.30	11.00	11.05
6785	NASDAQ	AMSC	Tue, May 7, 2019	10.79	11.35	10.79	11.03
6784	NASDAQ	AMSC	Mon, May 6, 2019	10.67	10.92	10.44	10.86
6783	NASDAQ	AMSC	Fri, May 3, 2019	10.84	11.12	10.84	10.90
6782	NASDAQ	AMSC	Thu, May 2, 2019	10.93	11.04	10.69	10.75
6781	NASDAQ	AMSC	Wed, May 1, 2019	11.03	11.21	10.76	11.02
6780	NASDAQ	AMSC	Tue, Apr 30, 2019	11.62	11.65	10.99	11.04
6779	NASDAQ	AMSC	Mon, Apr 29, 2019	11.89	11.90	11.55	11.59
6778	NASDAQ	AMSC	Fri, Apr 26, 2019	11.80	12.52	11.70	11.90
6777	NASDAQ	AMSC	Thu, Apr 25, 2019	12.04	12.10	11.64	11.85
6776	NASDAQ	AMSC	Wed, Apr 24, 2019	11.96	12.18	11.88	12.07
6775	NASDAQ	AMSC	Tue, Apr 23, 2019	11.73	12.01	11.73	11.91
6774	NASDAQ	AMSC	Mon, Apr 22, 2019	11.61	11.93	11.48	11.71
6773	NASDAQ	AMSC	Thu, Apr 18, 2019	11.57	11.73	11.45	11.66
6772	NASDAQ	AMSC	Wed, Apr 17, 2019	11.85	11.92	11.31	11.58
6771	NASDAQ	AMSC	Tue, Apr 16, 2019	12.27	12.35	11.84	11.85
6770	NASDAQ	AMSC	Mon, Apr 15, 2019	12.67	12.67	12.05	12.26
6769	NASDAQ	AMSC	Fri, Apr 12, 2019	13.44	13.47	12.61	12.73
6768	NASDAQ	AMSC	Thu, Apr 11, 2019	12.94	13.46	12.94	13.43
6767	NASDAQ	AMSC	Wed, Apr 10, 2019	13.01	13.13	12.66	12.96
6766	NASDAQ	AMSC	Tue, Apr 9, 2019	12.78	12.95	12.53	12.60
6765	NASDAQ	AMSC	Mon, Apr 8, 2019	12.79	13.22	12.45	12.89
6764	NASDAQ	AMSC	Fri, Apr 5, 2019	12.61	12.96	12.61	12.74
6763	NASDAQ	AMSC	Thu, Apr 4, 2019	12.71	12.88	12.22	12.60
6762	NASDAQ	AMSC	Wed, Apr 3, 2019	12.75	13.14	12.63	12.73
6761	NASDAQ	AMSC	Tue, Apr 2, 2019	12.34	13.00	12.24	12.69
6760	NASDAQ	AMSC	Mon, Apr 1, 2019	12.89	13.23	12.16	12.18
6759	NASDAQ	AMSC	Fri, Mar 29, 2019	13.71	13.80	12.65	12.86
6758	NASDAQ	AMSC	Thu, Mar 28, 2019	13.26	13.70	13.19	13.67
6757	NASDAQ	AMSC	Wed, Mar 27, 2019	13.09	13.59	12.83	13.21
6756	NASDAQ	AMSC	Tue, Mar 26, 2019	13.15	14.16	12.69	13.10
6755	NASDAQ	AMSC	Mon, Mar 25, 2019	12.00	13.15	11.40	13.08
6754	NASDAQ	AMSC	Fri, Mar 22, 2019	12.86	13.07	12.11	12.14
6753	NASDAQ	AMSC	Thu, Mar 21, 2019	13.31	13.49	12.75	12.88
6752	NASDAQ	AMSC	Wed, Mar 20, 2019	13.71	13.71	13.04	13.41
6751	NASDAQ	AMSC	Tue, Mar 19, 2019	14.05	14.22	13.29	13.78
6750	NASDAQ	AMSC	Mon, Mar 18, 2019	14.15	14.35	13.64	14.00
6749	NASDAQ	AMSC	Fri, Mar 15, 2019	15.20	15.37	14.05	14.15
6748	NASDAQ	AMSC	Thu, Mar 14, 2019	15.51	15.78	15.08	15.14
6747	NASDAQ	AMSC	Wed, Mar 13, 2019	15.71	16.33	15.49	15.53
6746	NASDAQ	AMSC	Tue, Mar 12, 2019	15.45	15.99	15.34	15.69
6745	NASDAQ	AMSC	Mon, Mar 11, 2019	14.43	15.96	14.39	15.56
6744	NASDAQ	AMSC	Fri, Mar 8, 2019	14.51	14.61	14.00	14.46
6743	NASDAQ	AMSC	Thu, Mar 7, 2019	13.92	14.69	13.57	14.62
6742	NASDAQ	AMSC	Wed, Mar 6, 2019	14.50	14.69	13.64	13.96
6741	NASDAQ	AMSC	Tue, Mar 5, 2019	14.78	14.97	14.46	14.49
6740	NASDAQ	AMSC	Mon, Mar 4, 2019	14.74	15.04	14.33	14.79
6739	NASDAQ	AMSC	Fri, Mar 1, 2019	14.95	14.96	14.05	14.74
6738	NASDAQ	AMSC	Thu, Feb 28, 2019	14.99	15.24	14.70	14.83
6737	NASDAQ	AMSC	Wed, Feb 27, 2019	15.09	15.33	14.65	15.04
6736	NASDAQ	AMSC	Tue, Feb 26, 2019	15.64	15.75	14.86	15.24
6735	NASDAQ	AMSC	Mon, Feb 25, 2019	16.10	16.44	15.67	15.69
6734	NASDAQ	AMSC	Fri, Feb 22, 2019	16.12	16.35	15.89	16.06
6733	NASDAQ	AMSC	Thu, Feb 21, 2019	15.98	16.17	15.72	16.00
6732	NASDAQ	AMSC	Wed, Feb 20, 2019	15.75	16.40	15.55	15.75
6731	NASDAQ	AMSC	Tue, Feb 19, 2019	14.97	16.12	14.97	15.69
6730	NASDAQ	AMSC	Fri, Feb 15, 2019	15.82	16.14	14.75	15.01
6729	NASDAQ	AMSC	Thu, Feb 14, 2019	15.43	15.94	15.33	15.80
6728	NASDAQ	AMSC	Wed, Feb 13, 2019	15.51	15.75	15.20	15.42
6727	NASDAQ	AMSC	Tue, Feb 12, 2019	15.23	15.34	14.64	15.33
6726	NASDAQ	AMSC	Mon, Feb 11, 2019	14.36	15.19	14.36	15.08
6725	NASDAQ	AMSC	Fri, Feb 8, 2019	14.32	15.01	14.06	14.40
6724	NASDAQ	AMSC	Thu, Feb 7, 2019	13.88	14.73	13.43	14.54
6723	NASDAQ	AMSC	Wed, Feb 6, 2019	12.49	14.43	12.45	13.88
6722	NASDAQ	AMSC	Tue, Feb 5, 2019	13.11	13.29	12.34	12.47
6721	NASDAQ	AMSC	Mon, Feb 4, 2019	14.05	14.21	11.79	12.85
6720	NASDAQ	AMSC	Fri, Feb 1, 2019	13.08	14.03	13.08	13.81
6719	NASDAQ	AMSC	Thu, Jan 31, 2019	12.86	13.18	12.61	13.07
6718	NASDAQ	AMSC	Wed, Jan 30, 2019	12.67	13.01	12.55	12.82
6717	NASDAQ	AMSC	Tue, Jan 29, 2019	12.63	12.80	12.27	12.58
6716	NASDAQ	AMSC	Mon, Jan 28, 2019	12.86	12.94	12.54	12.63
6715	NASDAQ	AMSC	Fri, Jan 25, 2019	12.36	12.95	12.36	12.77
6714	NASDAQ	AMSC	Thu, Jan 24, 2019	11.82	12.32	11.77	12.18
6713	NASDAQ	AMSC	Wed, Jan 23, 2019	11.94	12.20	11.65	11.82
6712	NASDAQ	AMSC	Tue, Jan 22, 2019	11.87	11.99	11.64	11.78
6711	NASDAQ	AMSC	Fri, Jan 18, 2019	12.10	12.32	11.90	11.97
6710	NASDAQ	AMSC	Thu, Jan 17, 2019	11.80	12.29	11.60	12.10
6709	NASDAQ	AMSC	Wed, Jan 16, 2019	11.67	11.95	11.40	11.87
6708	NASDAQ	AMSC	Tue, Jan 15, 2019	12.38	12.40	11.55	11.74
6707	NASDAQ	AMSC	Mon, Jan 14, 2019	11.74	12.33	11.49	12.28
6706	NASDAQ	AMSC	Fri, Jan 11, 2019	11.88	12.01	11.65	11.75
6705	NASDAQ	AMSC	Thu, Jan 10, 2019	11.57	12.00	11.32	11.90
6704	NASDAQ	AMSC	Wed, Jan 9, 2019	11.82	12.24	11.66	11.76
6703	NASDAQ	AMSC	Tue, Jan 8, 2019	11.26	11.88	11.26	11.75
6702	NASDAQ	AMSC	Mon, Jan 7, 2019	10.90	11.41	10.62	11.23
6701	NASDAQ	AMSC	Fri, Jan 4, 2019	11.05	11.53	10.82	10.90
6700	NASDAQ	AMSC	Thu, Jan 3, 2019	11.70	11.70	10.70	10.85
6699	NASDAQ	AMSC	Wed, Jan 2, 2019	11.02	11.75	10.69	11.75
6698	NASDAQ	AMSC	Mon, Dec 31, 2018	11.19	11.67	11.03	11.15
6697	NASDAQ	AMSC	Fri, Dec 28, 2018	9.74	11.36	9.61	10.96
6696	NASDAQ	AMSC	Thu, Dec 27, 2018	9.51	9.75	9.14	9.63
6695	NASDAQ	AMSC	Wed, Dec 26, 2018	9.20	9.88	9.11	9.65
6694	NASDAQ	AMSC	Mon, Dec 24, 2018	9.24	9.54	8.68	9.14
6693	NASDAQ	AMSC	Fri, Dec 21, 2018	9.70	10.50	9.11	9.32
6692	NASDAQ	AMSC	Thu, Dec 20, 2018	12.33	12.47	9.35	9.72
6691	NASDAQ	AMSC	Wed, Dec 19, 2018	11.98	12.50	11.75	12.32
6690	NASDAQ	AMSC	Tue, Dec 18, 2018	11.69	11.95	11.41	11.82
6689	NASDAQ	AMSC	Mon, Dec 17, 2018	11.49	12.01	11.26	11.64
6688	NASDAQ	AMSC	Fri, Dec 14, 2018	11.09	11.92	10.66	11.62
6687	NASDAQ	AMSC	Thu, Dec 13, 2018	11.93	12.14	10.86	11.13
6686	NASDAQ	AMSC	Wed, Dec 12, 2018	11.35	12.11	11.28	11.82
6685	NASDAQ	AMSC	Tue, Dec 11, 2018	10.97	11.60	10.78	11.27
6684	NASDAQ	AMSC	Mon, Dec 10, 2018	10.63	11.00	10.51	10.85
6683	NASDAQ	AMSC	Fri, Dec 7, 2018	10.83	11.20	10.53	10.70
6682	NASDAQ	AMSC	Thu, Dec 6, 2018	10.17	11.09	9.62	10.83
6681	NASDAQ	AMSC	Tue, Dec 4, 2018	10.93	11.26	10.52	10.57
6680	NASDAQ	AMSC	Mon, Dec 3, 2018	10.25	10.90	10.15	10.77
6679	NASDAQ	AMSC	Fri, Nov 30, 2018	9.47	10.00	9.47	10.00
6678	NASDAQ	AMSC	Thu, Nov 29, 2018	9.47	9.70	9.21	9.57
6677	NASDAQ	AMSC	Wed, Nov 28, 2018	9.19	9.67	9.06	9.39
6676	NASDAQ	AMSC	Tue, Nov 27, 2018	8.82	9.28	8.72	8.99
6675	NASDAQ	AMSC	Mon, Nov 26, 2018	8.42	8.91	8.42	8.85
6674	NASDAQ	AMSC	Fri, Nov 23, 2018	8.12	8.68	8.12	8.36
6673	NASDAQ	AMSC	Wed, Nov 21, 2018	8.27	8.58	8.13	8.20
6672	NASDAQ	AMSC	Tue, Nov 20, 2018	8.50	8.60	8.13	8.22
6671	NASDAQ	AMSC	Mon, Nov 19, 2018	8.90	9.13	8.52	8.56
6670	NASDAQ	AMSC	Fri, Nov 16, 2018	8.61	9.07	8.61	8.88
6669	NASDAQ	AMSC	Thu, Nov 15, 2018	8.83	9.21	8.76	8.84
6668	NASDAQ	AMSC	Wed, Nov 14, 2018	9.80	9.80	8.52	8.76
6667	NASDAQ	AMSC	Tue, Nov 13, 2018	9.35	9.89	8.95	9.72
6666	NASDAQ	AMSC	Mon, Nov 12, 2018	9.18	9.70	8.63	9.35
6665	NASDAQ	AMSC	Fri, Nov 9, 2018	9.41	9.69	9.16	9.17
6664	NASDAQ	AMSC	Thu, Nov 8, 2018	9.28	9.61	8.81	9.48
6663	NASDAQ	AMSC	Wed, Nov 7, 2018	7.65	9.68	7.59	9.35
6662	NASDAQ	AMSC	Tue, Nov 6, 2018	7.55	7.81	7.34	7.54
6661	NASDAQ	AMSC	Mon, Nov 5, 2018	7.84	8.18	7.51	7.55
6660	NASDAQ	AMSC	Fri, Nov 2, 2018	7.83	8.05	7.50	7.85
6659	NASDAQ	AMSC	Thu, Nov 1, 2018	6.30	7.78	6.10	7.55
6658	NASDAQ	AMSC	Wed, Oct 31, 2018	6.07	6.09	5.89	5.99
6657	NASDAQ	AMSC	Tue, Oct 30, 2018	5.92	6.10	5.78	6.07
6656	NASDAQ	AMSC	Mon, Oct 29, 2018	6.11	6.13	5.83	5.92
6655	NASDAQ	AMSC	Fri, Oct 26, 2018	6.05	6.13	5.84	6.06
6654	NASDAQ	AMSC	Thu, Oct 25, 2018	6.13	6.27	6.04	6.07
6653	NASDAQ	AMSC	Wed, Oct 24, 2018	6.21	6.28	5.99	6.01
6652	NASDAQ	AMSC	Tue, Oct 23, 2018	6.21	6.32	6.11	6.27
6651	NASDAQ	AMSC	Mon, Oct 22, 2018	6.88	6.90	6.25	6.32
6650	NASDAQ	AMSC	Fri, Oct 19, 2018	6.77	6.86	6.70	6.79
6649	NASDAQ	AMSC	Thu, Oct 18, 2018	6.65	6.93	6.62	6.76
6648	NASDAQ	AMSC	Wed, Oct 17, 2018	6.48	6.82	6.48	6.66
6647	NASDAQ	AMSC	Tue, Oct 16, 2018	6.56	6.76	6.45	6.52
6646	NASDAQ	AMSC	Mon, Oct 15, 2018	6.30	6.59	6.30	6.53
6645	NASDAQ	AMSC	Fri, Oct 12, 2018	6.26	6.50	6.21	6.29
6644	NASDAQ	AMSC	Thu, Oct 11, 2018	6.43	6.51	6.19	6.20
6643	NASDAQ	AMSC	Wed, Oct 10, 2018	6.83	6.97	6.37	6.44
6642	NASDAQ	AMSC	Tue, Oct 9, 2018	6.85	7.01	6.67	6.86
6641	NASDAQ	AMSC	Mon, Oct 8, 2018	7.07	7.11	6.79	6.87
6640	NASDAQ	AMSC	Fri, Oct 5, 2018	7.05	7.28	6.98	7.06
6639	NASDAQ	AMSC	Thu, Oct 4, 2018	7.00	7.08	6.93	7.01
6638	NASDAQ	AMSC	Wed, Oct 3, 2018	6.80	7.10	6.80	7.00
6637	NASDAQ	AMSC	Tue, Oct 2, 2018	6.84	6.84	6.73	6.80
6636	NASDAQ	AMSC	Mon, Oct 1, 2018	7.00	7.02	6.82	6.85
6635	NASDAQ	AMSC	Fri, Sep 28, 2018	7.00	7.02	6.80	6.95
6634	NASDAQ	AMSC	Thu, Sep 27, 2018	6.91	7.03	6.73	7.02
6633	NASDAQ	AMSC	Wed, Sep 26, 2018	6.60	7.13	6.57	6.92
6632	NASDAQ	AMSC	Tue, Sep 25, 2018	6.39	6.71	6.32	6.60
6631	NASDAQ	AMSC	Mon, Sep 24, 2018	6.43	6.57	6.26	6.33
6630	NASDAQ	AMSC	Fri, Sep 21, 2018	7.21	7.21	6.46	6.58
6629	NASDAQ	AMSC	Thu, Sep 20, 2018	6.32	7.35	6.25	7.33
6628	NASDAQ	AMSC	Wed, Sep 19, 2018	6.34	6.59	6.18	6.31
6627	NASDAQ	AMSC	Tue, Sep 18, 2018	6.45	6.49	6.38	6.39
6626	NASDAQ	AMSC	Mon, Sep 17, 2018	6.50	6.70	6.43	6.47
6625	NASDAQ	AMSC	Fri, Sep 14, 2018	6.59	6.60	6.45	6.53
6624	NASDAQ	AMSC	Thu, Sep 13, 2018	6.42	6.70	6.20	6.55
6623	NASDAQ	AMSC	Wed, Sep 12, 2018	5.70	6.09	5.70	6.00
6622	NASDAQ	AMSC	Tue, Sep 11, 2018	5.58	5.81	5.52	5.72
6621	NASDAQ	AMSC	Mon, Sep 10, 2018	5.66	5.77	5.56	5.61
6620	NASDAQ	AMSC	Fri, Sep 7, 2018	5.76	5.89	5.55	5.64
6619	NASDAQ	AMSC	Thu, Sep 6, 2018	5.79	5.99	5.58	5.75
6618	NASDAQ	AMSC	Wed, Sep 5, 2018	5.95	6.11	5.66	5.78
6617	NASDAQ	AMSC	Tue, Sep 4, 2018	6.20	6.20	5.94	5.99
6616	NASDAQ	AMSC	Fri, Aug 31, 2018	6.38	6.45	6.04	6.10
6615	NASDAQ	AMSC	Thu, Aug 30, 2018	6.50	6.50	6.37	6.39
6614	NASDAQ	AMSC	Wed, Aug 29, 2018	6.50	6.59	6.40	6.48
6613	NASDAQ	AMSC	Tue, Aug 28, 2018	6.41	6.63	6.10	6.46
6612	NASDAQ	AMSC	Mon, Aug 27, 2018	6.45	6.53	6.40	6.41
6611	NASDAQ	AMSC	Fri, Aug 24, 2018	6.45	6.69	6.42	6.42
6610	NASDAQ	AMSC	Thu, Aug 23, 2018	6.43	6.47	6.33	6.42
6609	NASDAQ	AMSC	Wed, Aug 22, 2018	6.39	6.49	6.35	6.43
6608	NASDAQ	AMSC	Tue, Aug 21, 2018	6.17	6.40	6.09	6.38
6607	NASDAQ	AMSC	Mon, Aug 20, 2018	6.11	6.25	6.06	6.18
6606	NASDAQ	AMSC	Fri, Aug 17, 2018	6.03	6.09	5.94	6.06
6605	NASDAQ	AMSC	Thu, Aug 16, 2018	6.05	6.19	5.87	6.03
6604	NASDAQ	AMSC	Wed, Aug 15, 2018	6.21	6.30	6.05	6.20
6603	NASDAQ	AMSC	Tue, Aug 14, 2018	6.35	6.35	6.07	6.20
6602	NASDAQ	AMSC	Mon, Aug 13, 2018	6.39	6.45	6.30	6.35
6601	NASDAQ	AMSC	Fri, Aug 10, 2018	6.45	6.53	6.30	6.36
6600	NASDAQ	AMSC	Thu, Aug 9, 2018	6.30	6.54	6.30	6.45
6599	NASDAQ	AMSC	Wed, Aug 8, 2018	6.30	6.43	6.18	6.31
6598	NASDAQ	AMSC	Tue, Aug 7, 2018	5.81	6.46	5.75	6.30
6597	NASDAQ	AMSC	Mon, Aug 6, 2018	5.71	5.88	5.59	5.78
6596	NASDAQ	AMSC	Fri, Aug 3, 2018	5.77	5.85	5.63	5.70
6595	NASDAQ	AMSC	Thu, Aug 2, 2018	5.72	5.85	5.65	5.74
6594	NASDAQ	AMSC	Wed, Aug 1, 2018	5.22	5.91	5.22	5.80
6593	NASDAQ	AMSC	Tue, Jul 31, 2018	5.07	5.21	5.07	5.18
6592	NASDAQ	AMSC	Mon, Jul 30, 2018	5.02	5.13	5.02	5.07
6591	NASDAQ	AMSC	Fri, Jul 27, 2018	5.06	5.07	4.92	5.03
6590	NASDAQ	AMSC	Thu, Jul 26, 2018	4.93	5.10	4.93	5.05
6589	NASDAQ	AMSC	Wed, Jul 25, 2018	4.94	5.02	4.85	4.94
6588	NASDAQ	AMSC	Tue, Jul 24, 2018	5.10	5.19	4.90	4.93
6587	NASDAQ	AMSC	Mon, Jul 23, 2018	5.10	5.15	5.01	5.07
6586	NASDAQ	AMSC	Fri, Jul 20, 2018	5.23	5.23	5.05	5.12
6585	NASDAQ	AMSC	Thu, Jul 19, 2018	5.11	5.29	5.09	5.22
6584	NASDAQ	AMSC	Wed, Jul 18, 2018	5.04	5.20	4.93	5.14
6583	NASDAQ	AMSC	Tue, Jul 17, 2018	4.95	5.01	4.84	4.90
6582	NASDAQ	AMSC	Mon, Jul 16, 2018	5.06	5.14	4.90	4.94
6581	NASDAQ	AMSC	Fri, Jul 13, 2018	5.00	5.15	4.99	5.09
6580	NASDAQ	AMSC	Thu, Jul 12, 2018	5.11	5.16	5.00	5.00
6579	NASDAQ	AMSC	Wed, Jul 11, 2018	5.32	5.32	5.00	5.07
6578	NASDAQ	AMSC	Tue, Jul 10, 2018	5.24	5.41	5.24	5.32
6577	NASDAQ	AMSC	Mon, Jul 9, 2018	5.58	5.96	5.16	5.22
6576	NASDAQ	AMSC	Fri, Jul 6, 2018	5.89	5.96	5.65	5.75
6575	NASDAQ	AMSC	Thu, Jul 5, 2018	6.44	6.44	5.81	5.95
6574	NASDAQ	AMSC	Tue, Jul 3, 2018	7.40	7.50	7.06	7.06
6573	NASDAQ	AMSC	Mon, Jul 2, 2018	6.98	7.39	6.95	7.39
6572	NASDAQ	AMSC	Fri, Jun 29, 2018	7.20	7.33	6.91	7.00
6571	NASDAQ	AMSC	Thu, Jun 28, 2018	7.32	7.39	7.15	7.22
6570	NASDAQ	AMSC	Wed, Jun 27, 2018	7.78	8.03	7.25	7.31
6569	NASDAQ	AMSC	Tue, Jun 26, 2018	7.64	7.84	7.47	7.74
6568	NASDAQ	AMSC	Mon, Jun 25, 2018	7.71	7.87	7.43	7.62
6567	NASDAQ	AMSC	Fri, Jun 22, 2018	7.09	7.74	7.08	7.69
6566	NASDAQ	AMSC	Thu, Jun 21, 2018	7.15	7.25	6.96	7.08
6565	NASDAQ	AMSC	Wed, Jun 20, 2018	6.83	7.15	6.81	7.12
6564	NASDAQ	AMSC	Tue, Jun 19, 2018	6.76	6.88	6.72	6.81
6563	NASDAQ	AMSC	Mon, Jun 18, 2018	6.85	6.90	6.74	6.89
6562	NASDAQ	AMSC	Fri, Jun 15, 2018	6.64	6.90	6.54	6.90
6561	NASDAQ	AMSC	Thu, Jun 14, 2018	6.65	6.67	6.45	6.63
6560	NASDAQ	AMSC	Wed, Jun 13, 2018	6.61	6.74	6.54	6.65
6559	NASDAQ	AMSC	Tue, Jun 12, 2018	6.57	6.79	6.57	6.65
6558	NASDAQ	AMSC	Mon, Jun 11, 2018	6.35	6.68	6.31	6.54
6557	NASDAQ	AMSC	Fri, Jun 8, 2018	6.41	6.58	6.20	6.36
6556	NASDAQ	AMSC	Thu, Jun 7, 2018	6.25	6.53	5.31	6.48
6555	NASDAQ	AMSC	Wed, Jun 6, 2018	6.96	7.02	6.85	7.00
6554	NASDAQ	AMSC	Tue, Jun 5, 2018	6.94	7.05	6.88	6.94
6553	NASDAQ	AMSC	Mon, Jun 4, 2018	6.75	7.06	6.63	6.92
6552	NASDAQ	AMSC	Fri, Jun 1, 2018	7.00	7.05	6.58	6.72
6551	NASDAQ	AMSC	Thu, May 31, 2018	7.00	7.14	6.82	6.96
6550	NASDAQ	AMSC	Wed, May 30, 2018	6.50	6.98	6.50	6.92
6549	NASDAQ	AMSC	Tue, May 29, 2018	6.38	6.45	6.13	6.29
6548	NASDAQ	AMSC	Fri, May 25, 2018	6.63	6.63	6.32	6.45
6547	NASDAQ	AMSC	Thu, May 24, 2018	6.79	6.89	6.57	6.67
6546	NASDAQ	AMSC	Wed, May 23, 2018	6.80	6.93	6.67	6.84
6545	NASDAQ	AMSC	Tue, May 22, 2018	6.71	6.90	6.71	6.82
6544	NASDAQ	AMSC	Mon, May 21, 2018	6.71	6.82	6.56	6.71
6543	NASDAQ	AMSC	Fri, May 18, 2018	6.71	6.83	6.65	6.71
6542	NASDAQ	AMSC	Thu, May 17, 2018	6.80	6.95	6.66	6.70
6541	NASDAQ	AMSC	Wed, May 16, 2018	6.81	7.05	6.76	6.79
6540	NASDAQ	AMSC	Tue, May 15, 2018	6.74	6.94	6.70	6.73
6539	NASDAQ	AMSC	Mon, May 14, 2018	6.82	7.15	6.70	6.88
6538	NASDAQ	AMSC	Fri, May 11, 2018	7.00	7.14	6.86	6.89
6537	NASDAQ	AMSC	Thu, May 10, 2018	6.38	6.99	6.37	6.99
6536	NASDAQ	AMSC	Wed, May 9, 2018	6.34	6.43	6.28	6.38
6535	NASDAQ	AMSC	Tue, May 8, 2018	6.17	6.40	6.17	6.32
6534	NASDAQ	AMSC	Mon, May 7, 2018	6.13	6.25	6.09	6.18
6533	NASDAQ	AMSC	Fri, May 4, 2018	5.96	6.15	5.95	6.06
6532	NASDAQ	AMSC	Thu, May 3, 2018	6.14	6.29	6.00	6.02
6531	NASDAQ	AMSC	Wed, May 2, 2018	5.97	6.20	5.95	6.15
6530	NASDAQ	AMSC	Tue, May 1, 2018	5.89	5.99	5.78	5.98
6529	NASDAQ	AMSC	Mon, Apr 30, 2018	5.96	5.96	5.75	5.90
6528	NASDAQ	AMSC	Fri, Apr 27, 2018	6.05	6.24	5.87	5.92
6527	NASDAQ	AMSC	Thu, Apr 26, 2018	6.14	6.14	5.92	6.04
6526	NASDAQ	AMSC	Wed, Apr 25, 2018	6.09	6.11	5.93	6.08
6525	NASDAQ	AMSC	Tue, Apr 24, 2018	6.30	6.33	5.88	6.08
6524	NASDAQ	AMSC	Mon, Apr 23, 2018	6.30	6.42	6.20	6.25
6523	NASDAQ	AMSC	Fri, Apr 20, 2018	6.52	6.52	6.25	6.32
6522	NASDAQ	AMSC	Thu, Apr 19, 2018	6.38	6.60	6.34	6.51
6521	NASDAQ	AMSC	Wed, Apr 18, 2018	6.20	6.42	6.07	6.37
6520	NASDAQ	AMSC	Tue, Apr 17, 2018	6.10	6.24	6.04	6.19
6519	NASDAQ	AMSC	Mon, Apr 16, 2018	6.44	6.49	6.03	6.08
6518	NASDAQ	AMSC	Fri, Apr 13, 2018	6.16	6.45	6.02	6.32
6517	NASDAQ	AMSC	Thu, Apr 12, 2018	6.05	6.23	5.98	6.16
6516	NASDAQ	AMSC	Wed, Apr 11, 2018	6.02	6.26	5.99	6.04
6515	NASDAQ	AMSC	Tue, Apr 10, 2018	5.97	6.15	5.97	6.02
6514	NASDAQ	AMSC	Mon, Apr 9, 2018	5.93	5.97	5.77	5.93
6513	NASDAQ	AMSC	Fri, Apr 6, 2018	6.19	6.27	5.81	5.85
6512	NASDAQ	AMSC	Thu, Apr 5, 2018	5.97	6.20	5.97	6.19
6511	NASDAQ	AMSC	Wed, Apr 4, 2018	5.69	6.04	5.65	5.93
6510	NASDAQ	AMSC	Tue, Apr 3, 2018	5.61	5.91	5.55	5.80
6509	NASDAQ	AMSC	Mon, Apr 2, 2018	5.82	5.82	5.50	5.60
6508	NASDAQ	AMSC	Thu, Mar 29, 2018	5.42	5.96	5.33	5.82
6507	NASDAQ	AMSC	Wed, Mar 28, 2018	5.58	5.58	5.27	5.39
6506	NASDAQ	AMSC	Tue, Mar 27, 2018	5.60	5.75	5.36	5.51
6505	NASDAQ	AMSC	Mon, Mar 26, 2018	5.68	5.68	5.31	5.54
6504	NASDAQ	AMSC	Fri, Mar 23, 2018	5.77	5.81	5.53	5.57
6503	NASDAQ	AMSC	Thu, Mar 22, 2018	5.97	6.00	5.70	5.76
6502	NASDAQ	AMSC	Wed, Mar 21, 2018	6.13	6.32	5.85	6.00
6501	NASDAQ	AMSC	Tue, Mar 20, 2018	6.20	6.51	5.97	6.11
6500	NASDAQ	AMSC	Mon, Mar 19, 2018	6.20	6.20	5.83	6.18
6499	NASDAQ	AMSC	Fri, Mar 16, 2018	5.49	6.20	5.47	6.13
6498	NASDAQ	AMSC	Thu, Mar 15, 2018	5.52	5.55	5.40	5.53
6497	NASDAQ	AMSC	Wed, Mar 14, 2018	5.71	5.85	5.47	5.52
6496	NASDAQ	AMSC	Tue, Mar 13, 2018	5.69	5.95	5.58	5.71
6495	NASDAQ	AMSC	Mon, Mar 12, 2018	5.11	6.07	5.11	5.74
6494	NASDAQ	AMSC	Fri, Mar 9, 2018	5.07	5.08	4.98	5.06
6493	NASDAQ	AMSC	Thu, Mar 8, 2018	5.17	5.17	4.93	5.04
6492	NASDAQ	AMSC	Wed, Mar 7, 2018	5.09	5.22	4.86	5.13
6491	NASDAQ	AMSC	Tue, Mar 6, 2018	5.27	5.27	5.05	5.15
6490	NASDAQ	AMSC	Mon, Mar 5, 2018	4.87	5.27	4.80	5.22
6489	NASDAQ	AMSC	Fri, Mar 2, 2018	4.70	4.97	4.67	4.87
6488	NASDAQ	AMSC	Thu, Mar 1, 2018	4.74	5.09	4.61	4.82
6487	NASDAQ	AMSC	Wed, Feb 28, 2018	4.90	4.92	4.72	4.73
6486	NASDAQ	AMSC	Tue, Feb 27, 2018	4.91	4.98	4.72	4.90
6485	NASDAQ	AMSC	Mon, Feb 26, 2018	5.06	5.09	4.86	4.89
6484	NASDAQ	AMSC	Fri, Feb 23, 2018	4.78	5.10	4.74	5.02
6483	NASDAQ	AMSC	Thu, Feb 22, 2018	4.87	4.87	4.70	4.76
6482	NASDAQ	AMSC	Wed, Feb 21, 2018	4.78	5.13	4.78	4.85
6481	NASDAQ	AMSC	Tue, Feb 20, 2018	4.61	4.73	4.58	4.71
6480	NASDAQ	AMSC	Fri, Feb 16, 2018	4.67	4.73	4.54	4.61
6479	NASDAQ	AMSC	Thu, Feb 15, 2018	4.68	4.72	4.52	4.68
6478	NASDAQ	AMSC	Wed, Feb 14, 2018	4.60	4.78	4.52	4.68
6477	NASDAQ	AMSC	Tue, Feb 13, 2018	4.59	4.63	4.43	4.60
6476	NASDAQ	AMSC	Mon, Feb 12, 2018	4.75	4.75	4.46	4.60
6475	NASDAQ	AMSC	Fri, Feb 9, 2018	4.57	4.74	4.39	4.39
6474	NASDAQ	AMSC	Thu, Feb 8, 2018	4.86	4.89	4.42	4.51
6473	NASDAQ	AMSC	Wed, Feb 7, 2018	4.62	4.91	4.56	4.88
6472	NASDAQ	AMSC	Tue, Feb 6, 2018	4.89	4.97	4.25	4.56
6471	NASDAQ	AMSC	Mon, Feb 5, 2018	5.13	5.23	5.08	5.08
6470	NASDAQ	AMSC	Fri, Feb 2, 2018	5.33	5.38	5.12	5.17
6469	NASDAQ	AMSC	Thu, Feb 1, 2018	5.18	5.59	5.00	5.34
6468	NASDAQ	AMSC	Wed, Jan 31, 2018	5.30	5.35	5.15	5.21
6467	NASDAQ	AMSC	Tue, Jan 30, 2018	5.40	5.41	5.02	5.28
6466	NASDAQ	AMSC	Mon, Jan 29, 2018	5.53	5.53	5.30	5.44
6465	NASDAQ	AMSC	Fri, Jan 26, 2018	5.40	5.59	5.31	5.50
6464	NASDAQ	AMSC	Thu, Jan 25, 2018	6.08	6.08	5.21	5.40
6463	NASDAQ	AMSC	Wed, Jan 24, 2018	5.08	6.31	4.86	5.70
6462	NASDAQ	AMSC	Tue, Jan 23, 2018	5.10	5.13	4.94	5.07
6461	NASDAQ	AMSC	Mon, Jan 22, 2018	5.15	5.24	5.04	5.10
6460	NASDAQ	AMSC	Fri, Jan 19, 2018	5.29	5.35	5.07	5.17
6459	NASDAQ	AMSC	Thu, Jan 18, 2018	5.25	5.41	5.13	5.30
6458	NASDAQ	AMSC	Wed, Jan 17, 2018	5.50	5.50	5.01	5.20
6457	NASDAQ	AMSC	Tue, Jan 16, 2018	5.57	5.74	5.41	5.49
6456	NASDAQ	AMSC	Fri, Jan 12, 2018	5.61	5.61	5.08	5.52
6455	NASDAQ	AMSC	Thu, Jan 11, 2018	4.90	5.59	4.88	5.46
6454	NASDAQ	AMSC	Wed, Jan 10, 2018	4.87	5.20	4.70	4.91
6453	NASDAQ	AMSC	Tue, Jan 9, 2018	4.91	5.92	4.74	4.86
6452	NASDAQ	AMSC	Mon, Jan 8, 2018	4.62	5.75	4.62	4.89
6451	NASDAQ	AMSC	Fri, Jan 5, 2018	4.23	4.57	4.23	4.50
6450	NASDAQ	AMSC	Thu, Jan 4, 2018	4.13	4.23	4.00	4.22
6449	NASDAQ	AMSC	Wed, Jan 3, 2018	3.82	4.12	3.80	4.03
6448	NASDAQ	AMSC	Tue, Jan 2, 2018	3.70	3.85	3.62	3.81
6447	NASDAQ	AMSC	Fri, Dec 29, 2017	3.70	3.87	3.61	3.63
6446	NASDAQ	AMSC	Thu, Dec 28, 2017	3.82	3.89	3.68	3.71
6445	NASDAQ	AMSC	Wed, Dec 27, 2017	3.70	3.87	3.70	3.82
6444	NASDAQ	AMSC	Tue, Dec 26, 2017	3.56	3.85	3.56	3.71
6443	NASDAQ	AMSC	Fri, Dec 22, 2017	3.55	3.58	3.46	3.56
6442	NASDAQ	AMSC	Thu, Dec 21, 2017	3.40	3.65	3.37	3.51
6441	NASDAQ	AMSC	Wed, Dec 20, 2017	3.42	3.46	3.35	3.36
6440	NASDAQ	AMSC	Tue, Dec 19, 2017	3.35	3.49	3.34	3.41
6439	NASDAQ	AMSC	Mon, Dec 18, 2017	3.30	3.37	3.26	3.35
6438	NASDAQ	AMSC	Fri, Dec 15, 2017	3.30	3.33	3.28	3.30
6437	NASDAQ	AMSC	Thu, Dec 14, 2017	3.21	3.38	3.21	3.26
6436	NASDAQ	AMSC	Wed, Dec 13, 2017	3.15	3.25	3.15	3.21
6435	NASDAQ	AMSC	Tue, Dec 12, 2017	3.20	3.24	3.14	3.15
6434	NASDAQ	AMSC	Mon, Dec 11, 2017	3.27	3.31	3.20	3.20
6433	NASDAQ	AMSC	Fri, Dec 8, 2017	3.23	3.30	3.17	3.28
6432	NASDAQ	AMSC	Thu, Dec 7, 2017	3.25	3.27	3.13	3.21
6431	NASDAQ	AMSC	Wed, Dec 6, 2017	3.30	3.36	3.26	3.26
6430	NASDAQ	AMSC	Tue, Dec 5, 2017	3.29	3.31	3.06	3.30
6429	NASDAQ	AMSC	Mon, Dec 4, 2017	3.28	3.42	3.11	3.28
6428	NASDAQ	AMSC	Fri, Dec 1, 2017	3.33	3.41	3.18	3.24
6427	NASDAQ	AMSC	Thu, Nov 30, 2017	3.61	4.00	3.27	3.33
6426	NASDAQ	AMSC	Wed, Nov 29, 2017	3.35	3.96	3.35	3.53
6425	NASDAQ	AMSC	Tue, Nov 28, 2017	3.37	3.48	3.22	3.33
6424	NASDAQ	AMSC	Mon, Nov 27, 2017	3.23	3.41	3.23	3.34
6423	NASDAQ	AMSC	Fri, Nov 24, 2017	3.23	3.26	3.20	3.23
6422	NASDAQ	AMSC	Wed, Nov 22, 2017	3.31	3.33	3.20	3.21
6421	NASDAQ	AMSC	Tue, Nov 21, 2017	3.37	3.44	3.24	3.30
6420	NASDAQ	AMSC	Mon, Nov 20, 2017	3.25	3.51	3.19	3.29
6419	NASDAQ	AMSC	Fri, Nov 17, 2017	3.18	3.34	3.18	3.25
6418	NASDAQ	AMSC	Thu, Nov 16, 2017	3.21	3.57	3.21	3.33
6417	NASDAQ	AMSC	Wed, Nov 15, 2017	3.20	3.42	3.16	3.31
6416	NASDAQ	AMSC	Tue, Nov 14, 2017	3.44	3.57	3.21	3.24
6415	NASDAQ	AMSC	Mon, Nov 13, 2017	3.67	3.70	3.48	3.48
6414	NASDAQ	AMSC	Fri, Nov 10, 2017	3.74	3.74	3.64	3.68
6413	NASDAQ	AMSC	Thu, Nov 9, 2017	3.75	3.88	3.68	3.73
6412	NASDAQ	AMSC	Wed, Nov 8, 2017	4.14	4.22	3.63	3.74
6411	NASDAQ	AMSC	Tue, Nov 7, 2017	4.21	4.24	4.15	4.20
6410	NASDAQ	AMSC	Mon, Nov 6, 2017	4.06	4.39	4.06	4.27
6409	NASDAQ	AMSC	Fri, Nov 3, 2017	4.08	4.08	4.01	4.06
6408	NASDAQ	AMSC	Thu, Nov 2, 2017	4.14	4.19	4.01	4.08
6407	NASDAQ	AMSC	Wed, Nov 1, 2017	4.21	4.22	4.05	4.10
6406	NASDAQ	AMSC	Tue, Oct 31, 2017	4.26	4.26	4.15	4.20
6405	NASDAQ	AMSC	Mon, Oct 30, 2017	4.27	4.40	4.17	4.17
6404	NASDAQ	AMSC	Fri, Oct 27, 2017	4.22	4.33	4.11	4.32
6403	NASDAQ	AMSC	Thu, Oct 26, 2017	4.19	4.20	4.06	4.20
6402	NASDAQ	AMSC	Wed, Oct 25, 2017	4.21	4.25	4.06	4.20
6401	NASDAQ	AMSC	Tue, Oct 24, 2017	4.25	4.33	4.18	4.21
6400	NASDAQ	AMSC	Mon, Oct 23, 2017	4.38	4.39	4.18	4.21
6399	NASDAQ	AMSC	Fri, Oct 20, 2017	4.37	4.42	4.33	4.37
6398	NASDAQ	AMSC	Thu, Oct 19, 2017	4.38	4.47	4.31	4.36
6397	NASDAQ	AMSC	Wed, Oct 18, 2017	4.45	4.50	4.34	4.43
6396	NASDAQ	AMSC	Tue, Oct 17, 2017	4.49	4.51	4.33	4.44
6395	NASDAQ	AMSC	Mon, Oct 16, 2017	4.49	4.57	4.39	4.48
6394	NASDAQ	AMSC	Fri, Oct 13, 2017	4.55	4.55	4.45	4.49
6393	NASDAQ	AMSC	Thu, Oct 12, 2017	4.54	4.65	4.48	4.51
6392	NASDAQ	AMSC	Wed, Oct 11, 2017	4.59	4.64	4.51	4.55
6391	NASDAQ	AMSC	Tue, Oct 10, 2017	4.69	4.80	4.56	4.58
6390	NASDAQ	AMSC	Mon, Oct 9, 2017	4.70	4.84	4.61	4.65
6389	NASDAQ	AMSC	Fri, Oct 6, 2017	4.70	4.73	4.57	4.71
6388	NASDAQ	AMSC	Thu, Oct 5, 2017	4.58	4.73	4.43	4.70
6387	NASDAQ	AMSC	Wed, Oct 4, 2017	4.70	4.75	4.54	4.57
6386	NASDAQ	AMSC	Tue, Oct 3, 2017	4.62	4.75	4.57	4.69
6385	NASDAQ	AMSC	Mon, Oct 2, 2017	4.54	4.74	4.48	4.62
6384	NASDAQ	AMSC	Fri, Sep 29, 2017	4.28	4.61	4.02	4.54
6383	NASDAQ	AMSC	Thu, Sep 28, 2017	4.45	4.49	4.24	4.29
6382	NASDAQ	AMSC	Wed, Sep 27, 2017	4.03	4.45	4.03	4.41
6381	NASDAQ	AMSC	Tue, Sep 26, 2017	4.04	4.08	3.90	4.03
6380	NASDAQ	AMSC	Mon, Sep 25, 2017	4.14	4.30	4.00	4.02
6379	NASDAQ	AMSC	Fri, Sep 22, 2017	4.10	4.18	4.00	4.14
6378	NASDAQ	AMSC	Thu, Sep 21, 2017	4.36	4.38	4.09	4.11
6377	NASDAQ	AMSC	Wed, Sep 20, 2017	4.37	4.58	4.30	4.36
6376	NASDAQ	AMSC	Tue, Sep 19, 2017	4.54	4.66	4.30	4.33
6375	NASDAQ	AMSC	Mon, Sep 18, 2017	4.96	4.98	4.56	4.57
6374	NASDAQ	AMSC	Fri, Sep 15, 2017	4.22	4.92	4.14	4.88
6373	NASDAQ	AMSC	Thu, Sep 14, 2017	3.85	4.28	3.85	4.21
6372	NASDAQ	AMSC	Wed, Sep 13, 2017	3.84	3.90	3.81	3.83
6371	NASDAQ	AMSC	Tue, Sep 12, 2017	3.75	3.88	3.71	3.83
6370	NASDAQ	AMSC	Mon, Sep 11, 2017	3.95	3.95	3.64	3.75
6369	NASDAQ	AMSC	Fri, Sep 8, 2017	4.15	4.18	3.82	3.85
6368	NASDAQ	AMSC	Thu, Sep 7, 2017	4.25	4.42	4.04	4.17
6367	NASDAQ	AMSC	Wed, Sep 6, 2017	3.85	3.96	3.77	3.90
6366	NASDAQ	AMSC	Tue, Sep 5, 2017	3.83	3.93	3.76	3.85
6365	NASDAQ	AMSC	Fri, Sep 1, 2017	3.90	3.91	3.80	3.83
6364	NASDAQ	AMSC	Thu, Aug 31, 2017	3.88	4.04	3.86	3.88
6363	NASDAQ	AMSC	Wed, Aug 30, 2017	3.85	3.91	3.72	3.90
6362	NASDAQ	AMSC	Tue, Aug 29, 2017	3.85	3.91	3.66	3.86
6361	NASDAQ	AMSC	Mon, Aug 28, 2017	3.92	4.00	3.78	3.87
6360	NASDAQ	AMSC	Fri, Aug 25, 2017	3.75	4.20	3.75	3.90
6359	NASDAQ	AMSC	Thu, Aug 24, 2017	3.71	3.80	3.66	3.74
6358	NASDAQ	AMSC	Wed, Aug 23, 2017	3.78	3.82	3.62	3.68
6357	NASDAQ	AMSC	Tue, Aug 22, 2017	4.00	4.13	3.82	3.87
6356	NASDAQ	AMSC	Mon, Aug 21, 2017	3.63	3.96	3.57	3.94
6355	NASDAQ	AMSC	Fri, Aug 18, 2017	3.44	3.61	3.33	3.59
6354	NASDAQ	AMSC	Thu, Aug 17, 2017	3.49	3.52	3.35	3.37
6353	NASDAQ	AMSC	Wed, Aug 16, 2017	3.47	3.54	3.38	3.47
6352	NASDAQ	AMSC	Tue, Aug 15, 2017	3.53	3.54	3.33	3.47
6351	NASDAQ	AMSC	Mon, Aug 14, 2017	3.24	3.56	3.24	3.52
6350	NASDAQ	AMSC	Fri, Aug 11, 2017	3.26	3.29	3.14	3.23
6349	NASDAQ	AMSC	Thu, Aug 10, 2017	3.33	3.36	3.20	3.25
6348	NASDAQ	AMSC	Wed, Aug 9, 2017	2.97	3.42	2.90	3.30
6347	NASDAQ	AMSC	Tue, Aug 8, 2017	2.99	3.04	2.89	2.97
6346	NASDAQ	AMSC	Mon, Aug 7, 2017	3.26	3.26	3.00	3.02
6345	NASDAQ	AMSC	Fri, Aug 4, 2017	3.01	3.17	3.01	3.13
6344	NASDAQ	AMSC	Thu, Aug 3, 2017	3.12	3.16	2.99	3.01
6343	NASDAQ	AMSC	Wed, Aug 2, 2017	3.11	3.22	3.10	3.13
6342	NASDAQ	AMSC	Tue, Aug 1, 2017	3.23	3.23	3.02	3.11
6341	NASDAQ	AMSC	Mon, Jul 31, 2017	3.36	3.40	3.18	3.19
6340	NASDAQ	AMSC	Fri, Jul 28, 2017	3.36	3.43	3.20	3.35
6339	NASDAQ	AMSC	Thu, Jul 27, 2017	3.43	3.46	3.32	3.36
6338	NASDAQ	AMSC	Wed, Jul 26, 2017	3.52	3.57	3.33	3.43
6337	NASDAQ	AMSC	Tue, Jul 25, 2017	3.61	3.61	3.45	3.51
6336	NASDAQ	AMSC	Mon, Jul 24, 2017	3.65	3.72	3.36	3.57
6335	NASDAQ	AMSC	Fri, Jul 21, 2017	4.06	4.18	3.54	3.60
6334	NASDAQ	AMSC	Thu, Jul 20, 2017	4.31	4.43	4.18	4.21
6333	NASDAQ	AMSC	Wed, Jul 19, 2017	4.25	4.40	4.22	4.31
6332	NASDAQ	AMSC	Tue, Jul 18, 2017	4.31	4.32	4.20	4.21
6331	NASDAQ	AMSC	Mon, Jul 17, 2017	4.44	4.52	4.30	4.32
6330	NASDAQ	AMSC	Fri, Jul 14, 2017	4.40	4.49	4.28	4.43
6329	NASDAQ	AMSC	Thu, Jul 13, 2017	4.30	4.43	4.24	4.41
6328	NASDAQ	AMSC	Wed, Jul 12, 2017	4.27	4.35	4.13	4.31
6327	NASDAQ	AMSC	Tue, Jul 11, 2017	4.40	4.47	4.24	4.26
6326	NASDAQ	AMSC	Mon, Jul 10, 2017	4.57	4.60	4.29	4.41
6325	NASDAQ	AMSC	Fri, Jul 7, 2017	4.55	4.64	4.46	4.55
6324	NASDAQ	AMSC	Thu, Jul 6, 2017	4.56	4.65	4.41	4.53
6323	NASDAQ	AMSC	Wed, Jul 5, 2017	4.77	4.88	4.58	4.59
6322	NASDAQ	AMSC	Mon, Jul 3, 2017	4.65	4.92	4.62	4.77
6321	NASDAQ	AMSC	Fri, Jun 30, 2017	4.63	4.70	4.43	4.62
6320	NASDAQ	AMSC	Thu, Jun 29, 2017	4.62	4.66	4.40	4.62
6319	NASDAQ	AMSC	Wed, Jun 28, 2017	4.56	4.70	4.56	4.63
6318	NASDAQ	AMSC	Tue, Jun 27, 2017	4.48	4.62	4.39	4.56
6317	NASDAQ	AMSC	Mon, Jun 26, 2017	4.50	4.65	4.41	4.48
6316	NASDAQ	AMSC	Fri, Jun 23, 2017	4.49	4.72	4.46	4.48
6315	NASDAQ	AMSC	Thu, Jun 22, 2017	4.48	4.52	4.35	4.49
6314	NASDAQ	AMSC	Wed, Jun 21, 2017	4.57	4.62	4.38	4.48
6313	NASDAQ	AMSC	Tue, Jun 20, 2017	4.55	4.64	4.43	4.58
6312	NASDAQ	AMSC	Mon, Jun 19, 2017	4.60	4.60	4.41	4.57
6311	NASDAQ	AMSC	Fri, Jun 16, 2017	4.62	4.62	4.40	4.58
6310	NASDAQ	AMSC	Thu, Jun 15, 2017	4.66	4.83	4.56	4.63
6309	NASDAQ	AMSC	Wed, Jun 14, 2017	4.33	4.70	4.20	4.67
6308	NASDAQ	AMSC	Tue, Jun 13, 2017	4.35	4.40	4.25	4.33
6307	NASDAQ	AMSC	Mon, Jun 12, 2017	4.75	4.76	4.31	4.35
6306	NASDAQ	AMSC	Fri, Jun 9, 2017	4.60	4.99	4.51	4.76
6305	NASDAQ	AMSC	Thu, Jun 8, 2017	4.42	4.60	4.40	4.59
6304	NASDAQ	AMSC	Wed, Jun 7, 2017	4.44	4.50	4.34	4.43
6303	NASDAQ	AMSC	Tue, Jun 6, 2017	4.18	4.45	4.07	4.40
6302	NASDAQ	AMSC	Mon, Jun 5, 2017	4.21	4.37	4.09	4.21
6301	NASDAQ	AMSC	Fri, Jun 2, 2017	4.31	4.50	4.20	4.22
6300	NASDAQ	AMSC	Thu, Jun 1, 2017	4.13	4.34	4.03	4.31
6299	NASDAQ	AMSC	Wed, May 31, 2017	4.11	4.17	3.98	4.12
6298	NASDAQ	AMSC	Tue, May 30, 2017	4.20	4.22	4.01	4.05
6297	NASDAQ	AMSC	Fri, May 26, 2017	4.28	4.28	4.04	4.21
6296	NASDAQ	AMSC	Thu, May 25, 2017	4.10	4.31	3.97	4.29
6295	NASDAQ	AMSC	Wed, May 24, 2017	4.20	4.24	4.11	4.12
6294	NASDAQ	AMSC	Tue, May 23, 2017	4.24	4.30	4.16	4.20
6293	NASDAQ	AMSC	Mon, May 22, 2017	4.15	4.24	4.05	4.20
6292	NASDAQ	AMSC	Fri, May 19, 2017	4.06	4.20	4.02	4.14
6291	NASDAQ	AMSC	Thu, May 18, 2017	4.05	4.07	3.88	4.05
6290	NASDAQ	AMSC	Wed, May 17, 2017	4.14	4.20	3.97	4.08
6289	NASDAQ	AMSC	Tue, May 16, 2017	4.20	4.25	4.13	4.15
6288	NASDAQ	AMSC	Mon, May 15, 2017	4.05	4.47	4.04	4.23
6287	NASDAQ	AMSC	Fri, May 12, 2017	4.01	4.07	3.96	4.06
6286	NASDAQ	AMSC	Thu, May 11, 2017	4.03	4.06	3.96	4.02
6285	NASDAQ	AMSC	Wed, May 10, 2017	4.10	4.12	4.02	4.05
6284	NASDAQ	AMSC	Tue, May 9, 2017	4.08	4.20	4.01	4.11
6283	NASDAQ	AMSC	Mon, May 8, 2017	4.03	4.08	4.00	4.06
6282	NASDAQ	AMSC	Fri, May 5, 2017	4.18	4.20	3.98	4.00
6281	NASDAQ	AMSC	Thu, May 4, 2017	4.70	4.92	4.63	4.85
6280	NASDAQ	AMSC	Wed, May 3, 2017	4.88	4.88	4.58	4.71
6279	NASDAQ	AMSC	Tue, May 2, 2017	5.00	5.03	4.73	4.85
6278	NASDAQ	AMSC	Mon, May 1, 2017	5.51	5.51	4.91	4.94
6277	NASDAQ	AMSC	Fri, Apr 28, 2017	5.62	5.65	5.13	5.21
6276	NASDAQ	AMSC	Thu, Apr 27, 2017	5.00	6.33	4.83	5.61
6275	NASDAQ	AMSC	Wed, Apr 26, 2017	7.41	7.75	7.39	7.70
6274	NASDAQ	AMSC	Tue, Apr 25, 2017	7.10	7.41	6.98	7.40
6273	NASDAQ	AMSC	Mon, Apr 24, 2017	7.00	7.10	6.87	7.07
6272	NASDAQ	AMSC	Fri, Apr 21, 2017	6.78	6.98	6.73	6.93
6271	NASDAQ	AMSC	Thu, Apr 20, 2017	6.73	6.98	6.72	6.77
6270	NASDAQ	AMSC	Wed, Apr 19, 2017	6.65	6.90	6.60	6.72
6269	NASDAQ	AMSC	Tue, Apr 18, 2017	6.61	6.70	6.53	6.64
6268	NASDAQ	AMSC	Mon, Apr 17, 2017	6.82	6.92	6.60	6.69
6267	NASDAQ	AMSC	Thu, Apr 13, 2017	7.03	7.09	6.75	6.82
6266	NASDAQ	AMSC	Wed, Apr 12, 2017	6.89	7.07	6.84	7.03
6265	NASDAQ	AMSC	Tue, Apr 11, 2017	6.85	7.00	6.79	6.97
6264	NASDAQ	AMSC	Mon, Apr 10, 2017	6.71	6.90	6.71	6.85
6263	NASDAQ	AMSC	Fri, Apr 7, 2017	6.64	6.88	6.64	6.71
6262	NASDAQ	AMSC	Thu, Apr 6, 2017	6.49	6.74	6.36	6.71
6261	NASDAQ	AMSC	Wed, Apr 5, 2017	6.66	6.80	6.38	6.44
6260	NASDAQ	AMSC	Tue, Apr 4, 2017	6.65	6.76	6.56	6.62
6259	NASDAQ	AMSC	Mon, Apr 3, 2017	6.93	6.93	6.61	6.67
6258	NASDAQ	AMSC	Fri, Mar 31, 2017	6.83	6.91	6.71	6.86
6257	NASDAQ	AMSC	Thu, Mar 30, 2017	6.78	6.98	6.56	6.95
6256	NASDAQ	AMSC	Wed, Mar 29, 2017	6.30	6.79	6.30	6.77
6255	NASDAQ	AMSC	Tue, Mar 28, 2017	6.24	6.50	6.24	6.33
6254	NASDAQ	AMSC	Mon, Mar 27, 2017	6.20	6.34	6.11	6.28
6253	NASDAQ	AMSC	Fri, Mar 24, 2017	6.34	6.36	6.21	6.24
6252	NASDAQ	AMSC	Thu, Mar 23, 2017	6.45	6.51	6.32	6.36
6251	NASDAQ	AMSC	Wed, Mar 22, 2017	6.54	6.66	6.40	6.46
6250	NASDAQ	AMSC	Tue, Mar 21, 2017	6.50	6.70	6.33	6.51
6249	NASDAQ	AMSC	Mon, Mar 20, 2017	6.43	6.43	6.21	6.39
6248	NASDAQ	AMSC	Fri, Mar 17, 2017	6.28	6.59	6.24	6.40
6247	NASDAQ	AMSC	Thu, Mar 16, 2017	6.33	6.41	6.20	6.28
6246	NASDAQ	AMSC	Wed, Mar 15, 2017	6.15	6.41	6.03	6.35
6245	NASDAQ	AMSC	Tue, Mar 14, 2017	6.10	6.21	5.94	6.07
6244	NASDAQ	AMSC	Mon, Mar 13, 2017	6.00	6.27	6.00	6.15
6243	NASDAQ	AMSC	Fri, Mar 10, 2017	5.99	6.05	5.86	6.02
6242	NASDAQ	AMSC	Thu, Mar 9, 2017	6.03	6.04	5.90	5.94
6241	NASDAQ	AMSC	Wed, Mar 8, 2017	6.25	6.30	5.93	6.01
6240	NASDAQ	AMSC	Tue, Mar 7, 2017	6.32	6.37	6.13	6.20
6239	NASDAQ	AMSC	Mon, Mar 6, 2017	6.43	6.44	6.24	6.35
6238	NASDAQ	AMSC	Fri, Mar 3, 2017	6.42	6.50	6.24	6.43
6237	NASDAQ	AMSC	Thu, Mar 2, 2017	6.12	6.59	6.12	6.42
6236	NASDAQ	AMSC	Wed, Mar 1, 2017	6.20	6.36	6.19	6.22
6235	NASDAQ	AMSC	Tue, Feb 28, 2017	6.39	6.39	6.08	6.11
6234	NASDAQ	AMSC	Mon, Feb 27, 2017	6.35	6.47	6.32	6.40
6233	NASDAQ	AMSC	Fri, Feb 24, 2017	6.38	6.45	6.31	6.35
6232	NASDAQ	AMSC	Thu, Feb 23, 2017	6.55	6.61	6.30	6.42
6231	NASDAQ	AMSC	Wed, Feb 22, 2017	6.65	6.69	6.42	6.53
6230	NASDAQ	AMSC	Tue, Feb 21, 2017	6.65	6.74	6.61	6.67
6229	NASDAQ	AMSC	Fri, Feb 17, 2017	6.73	6.73	6.52	6.62
6228	NASDAQ	AMSC	Thu, Feb 16, 2017	6.76	6.79	6.61	6.74
6227	NASDAQ	AMSC	Wed, Feb 15, 2017	6.81	6.81	6.68	6.76
6226	NASDAQ	AMSC	Tue, Feb 14, 2017	6.89	6.90	6.68	6.74
6225	NASDAQ	AMSC	Mon, Feb 13, 2017	6.75	6.91	6.71	6.86
6224	NASDAQ	AMSC	Fri, Feb 10, 2017	6.68	6.76	6.66	6.66
6223	NASDAQ	AMSC	Thu, Feb 9, 2017	6.52	6.69	6.50	6.63
6222	NASDAQ	AMSC	Wed, Feb 8, 2017	6.80	6.80	6.45	6.52
6221	NASDAQ	AMSC	Tue, Feb 7, 2017	7.27	7.27	6.75	6.79
6220	NASDAQ	AMSC	Mon, Feb 6, 2017	7.30	7.82	7.16	7.25
6219	NASDAQ	AMSC	Fri, Feb 3, 2017	7.05	7.09	6.97	7.04
6218	NASDAQ	AMSC	Thu, Feb 2, 2017	7.04	7.05	6.99	7.02
6217	NASDAQ	AMSC	Wed, Feb 1, 2017	6.99	7.09	6.99	7.04
6216	NASDAQ	AMSC	Tue, Jan 31, 2017	7.03	7.08	6.92	6.99
6215	NASDAQ	AMSC	Mon, Jan 30, 2017	7.10	7.36	7.00	7.10
6214	NASDAQ	AMSC	Fri, Jan 27, 2017	7.17	7.18	7.11	7.12
6213	NASDAQ	AMSC	Thu, Jan 26, 2017	7.20	7.25	7.05	7.21
6212	NASDAQ	AMSC	Wed, Jan 25, 2017	7.27	7.28	7.06	7.17
6211	NASDAQ	AMSC	Tue, Jan 24, 2017	7.10	7.35	6.85	7.17
6210	NASDAQ	AMSC	Mon, Jan 23, 2017	7.18	7.18	6.82	7.03
6209	NASDAQ	AMSC	Fri, Jan 20, 2017	7.23	7.27	7.11	7.15
6208	NASDAQ	AMSC	Thu, Jan 19, 2017	7.07	7.30	7.07	7.27
6207	NASDAQ	AMSC	Wed, Jan 18, 2017	7.23	7.29	7.08	7.17
6206	NASDAQ	AMSC	Tue, Jan 17, 2017	7.30	7.39	7.08	7.18
6205	NASDAQ	AMSC	Fri, Jan 13, 2017	7.30	7.47	7.23	7.30
6204	NASDAQ	AMSC	Thu, Jan 12, 2017	7.27	7.35	7.08	7.22
6203	NASDAQ	AMSC	Wed, Jan 11, 2017	7.29	7.38	7.11	7.27
6202	NASDAQ	AMSC	Tue, Jan 10, 2017	7.18	7.23	7.09	7.19
6201	NASDAQ	AMSC	Mon, Jan 9, 2017	7.40	7.40	7.07	7.12
6200	NASDAQ	AMSC	Fri, Jan 6, 2017	7.23	7.56	7.16	7.35
6199	NASDAQ	AMSC	Thu, Jan 5, 2017	7.40	7.41	7.20	7.24
6198	NASDAQ	AMSC	Wed, Jan 4, 2017	7.50	7.53	7.34	7.41
6197	NASDAQ	AMSC	Tue, Jan 3, 2017	7.33	7.57	7.27	7.42
6196	NASDAQ	AMSC	Fri, Dec 30, 2016	7.55	7.65	7.29	7.37
6195	NASDAQ	AMSC	Thu, Dec 29, 2016	7.52	7.78	7.50	7.57
6194	NASDAQ	AMSC	Wed, Dec 28, 2016	7.88	7.90	7.53	7.56
6193	NASDAQ	AMSC	Tue, Dec 27, 2016	7.53	8.07	7.52	7.89
6192	NASDAQ	AMSC	Fri, Dec 23, 2016	7.40	7.69	7.40	7.54
6191	NASDAQ	AMSC	Thu, Dec 22, 2016	7.60	7.64	7.39	7.45
6190	NASDAQ	AMSC	Wed, Dec 21, 2016	7.62	7.87	7.60	7.60
6189	NASDAQ	AMSC	Tue, Dec 20, 2016	7.79	7.79	7.58	7.72
6188	NASDAQ	AMSC	Mon, Dec 19, 2016	7.77	7.88	7.54	7.77
6187	NASDAQ	AMSC	Fri, Dec 16, 2016	7.91	7.97	7.68	7.91
6186	NASDAQ	AMSC	Thu, Dec 15, 2016	7.95	7.99	7.82	7.88
6185	NASDAQ	AMSC	Wed, Dec 14, 2016	8.25	8.30	7.90	7.92
6184	NASDAQ	AMSC	Tue, Dec 13, 2016	8.23	8.34	8.21	8.26
6183	NASDAQ	AMSC	Mon, Dec 12, 2016	8.10	8.25	8.10	8.13
6182	NASDAQ	AMSC	Fri, Dec 9, 2016	7.96	8.15	7.96	8.09
6181	NASDAQ	AMSC	Thu, Dec 8, 2016	8.05	8.13	7.75	7.94
6180	NASDAQ	AMSC	Wed, Dec 7, 2016	7.83	8.19	7.79	8.02
6179	NASDAQ	AMSC	Tue, Dec 6, 2016	7.83	7.85	7.75	7.84
6178	NASDAQ	AMSC	Mon, Dec 5, 2016	7.87	7.87	7.74	7.82
6177	NASDAQ	AMSC	Fri, Dec 2, 2016	7.74	7.83	7.72	7.76
6176	NASDAQ	AMSC	Thu, Dec 1, 2016	7.75	7.90	7.71	7.79
6175	NASDAQ	AMSC	Wed, Nov 30, 2016	7.86	7.94	7.74	7.74
6174	NASDAQ	AMSC	Tue, Nov 29, 2016	7.99	7.99	7.73	7.75
6173	NASDAQ	AMSC	Mon, Nov 28, 2016	8.15	8.22	8.00	8.04
6172	NASDAQ	AMSC	Fri, Nov 25, 2016	8.13	8.15	8.06	8.15
6171	NASDAQ	AMSC	Wed, Nov 23, 2016	8.17	8.24	8.01	8.11
6170	NASDAQ	AMSC	Tue, Nov 22, 2016	8.10	8.29	8.08	8.24
6169	NASDAQ	AMSC	Mon, Nov 21, 2016	8.00	8.22	7.98	8.03
6168	NASDAQ	AMSC	Fri, Nov 18, 2016	8.24	8.24	8.00	8.05
6167	NASDAQ	AMSC	Thu, Nov 17, 2016	8.12	8.18	8.02	8.17
6166	NASDAQ	AMSC	Wed, Nov 16, 2016	8.08	8.22	7.94	8.15
6165	NASDAQ	AMSC	Tue, Nov 15, 2016	8.23	8.40	7.86	8.04
6164	NASDAQ	AMSC	Mon, Nov 14, 2016	8.47	8.54	8.13	8.25
6163	NASDAQ	AMSC	Fri, Nov 11, 2016	7.79	8.55	7.58	8.44
6162	NASDAQ	AMSC	Thu, Nov 10, 2016	7.59	7.98	7.38	7.81
6161	NASDAQ	AMSC	Wed, Nov 9, 2016	6.73	7.62	6.73	7.53
6160	NASDAQ	AMSC	Tue, Nov 8, 2016	7.50	7.50	7.25	7.38
6159	NASDAQ	AMSC	Mon, Nov 7, 2016	7.26	7.62	7.15	7.57
6158	NASDAQ	AMSC	Fri, Nov 4, 2016	6.77	7.43	6.71	7.12
6157	NASDAQ	AMSC	Thu, Nov 3, 2016	6.71	6.90	6.52	6.69
6156	NASDAQ	AMSC	Wed, Nov 2, 2016	6.90	6.90	6.31	6.65
6155	NASDAQ	AMSC	Tue, Nov 1, 2016	6.47	6.47	6.01	6.16
6154	NASDAQ	AMSC	Mon, Oct 31, 2016	6.93	6.93	6.30	6.41
6153	NASDAQ	AMSC	Fri, Oct 28, 2016	6.82	7.01	6.82	6.90
6152	NASDAQ	AMSC	Thu, Oct 27, 2016	7.11	7.19	6.82	6.87
6151	NASDAQ	AMSC	Wed, Oct 26, 2016	6.95	7.16	6.95	7.03
6150	NASDAQ	AMSC	Tue, Oct 25, 2016	7.08	7.12	6.96	7.04
6149	NASDAQ	AMSC	Mon, Oct 24, 2016	7.20	7.20	7.08	7.10
6148	NASDAQ	AMSC	Fri, Oct 21, 2016	6.82	7.20	6.82	7.15
6147	NASDAQ	AMSC	Thu, Oct 20, 2016	6.88	6.99	6.78	6.91
6146	NASDAQ	AMSC	Wed, Oct 19, 2016	6.70	7.06	6.65	6.92
6145	NASDAQ	AMSC	Tue, Oct 18, 2016	6.81	6.81	6.51	6.68
6144	NASDAQ	AMSC	Mon, Oct 17, 2016	6.70	6.82	6.68	6.71
6143	NASDAQ	AMSC	Fri, Oct 14, 2016	7.00	7.04	6.71	6.76
6142	NASDAQ	AMSC	Thu, Oct 13, 2016	6.99	7.00	6.92	6.93
6141	NASDAQ	AMSC	Wed, Oct 12, 2016	6.96	7.09	6.92	7.02
6140	NASDAQ	AMSC	Tue, Oct 11, 2016	7.42	7.44	7.05	7.14
6139	NASDAQ	AMSC	Mon, Oct 10, 2016	6.98	7.40	6.98	7.36
6138	NASDAQ	AMSC	Fri, Oct 7, 2016	7.04	7.09	6.90	6.96
6137	NASDAQ	AMSC	Thu, Oct 6, 2016	7.05	7.16	7.00	7.03
6136	NASDAQ	AMSC	Wed, Oct 5, 2016	7.02	7.15	7.02	7.10
6135	NASDAQ	AMSC	Tue, Oct 4, 2016	7.10	7.11	6.98	7.03
6134	NASDAQ	AMSC	Mon, Oct 3, 2016	7.03	7.13	7.01	7.08
6133	NASDAQ	AMSC	Fri, Sep 30, 2016	6.93	7.05	6.86	7.01
6132	NASDAQ	AMSC	Thu, Sep 29, 2016	7.06	7.23	6.85	6.96
6131	NASDAQ	AMSC	Wed, Sep 28, 2016	7.04	7.19	6.62	7.06
6130	NASDAQ	AMSC	Tue, Sep 27, 2016	6.88	7.05	6.40	7.01
6129	NASDAQ	AMSC	Mon, Sep 26, 2016	6.80	6.94	6.60	6.89
6128	NASDAQ	AMSC	Fri, Sep 23, 2016	6.91	7.12	6.81	6.83
6127	NASDAQ	AMSC	Thu, Sep 22, 2016	6.89	7.08	6.81	6.94
6126	NASDAQ	AMSC	Wed, Sep 21, 2016	6.81	6.89	6.64	6.88
6125	NASDAQ	AMSC	Tue, Sep 20, 2016	6.80	6.85	6.60	6.80
6124	NASDAQ	AMSC	Mon, Sep 19, 2016	6.34	6.75	6.33	6.72
6123	NASDAQ	AMSC	Fri, Sep 16, 2016	6.43	6.44	6.21	6.32
6122	NASDAQ	AMSC	Thu, Sep 15, 2016	6.52	6.59	6.33	6.38
6121	NASDAQ	AMSC	Wed, Sep 14, 2016	6.70	6.88	6.50	6.52
6120	NASDAQ	AMSC	Tue, Sep 13, 2016	6.96	6.97	6.70	6.71
6119	NASDAQ	AMSC	Mon, Sep 12, 2016	6.92	7.08	6.88	6.98
6118	NASDAQ	AMSC	Fri, Sep 9, 2016	7.28	7.31	6.86	6.99
6117	NASDAQ	AMSC	Thu, Sep 8, 2016	7.22	7.37	7.21	7.31
6116	NASDAQ	AMSC	Wed, Sep 7, 2016	7.03	7.30	7.01	7.24
6115	NASDAQ	AMSC	Tue, Sep 6, 2016	7.16	7.39	7.02	7.03
6114	NASDAQ	AMSC	Fri, Sep 2, 2016	6.99	7.18	6.99	7.14
6113	NASDAQ	AMSC	Thu, Sep 1, 2016	7.08	7.09	6.86	7.06
6112	NASDAQ	AMSC	Wed, Aug 31, 2016	7.20	7.70	7.03	7.08
6111	NASDAQ	AMSC	Tue, Aug 30, 2016	7.20	7.48	7.15	7.22
6110	NASDAQ	AMSC	Mon, Aug 29, 2016	7.14	7.22	7.05	7.14
6109	NASDAQ	AMSC	Fri, Aug 26, 2016	7.30	7.38	7.05	7.11
6108	NASDAQ	AMSC	Thu, Aug 25, 2016	7.05	7.29	7.05	7.21
6107	NASDAQ	AMSC	Wed, Aug 24, 2016	7.27	7.49	7.04	7.09
6106	NASDAQ	AMSC	Tue, Aug 23, 2016	7.00	7.55	6.92	7.49
6105	NASDAQ	AMSC	Mon, Aug 22, 2016	6.85	7.12	6.82	6.86
6104	NASDAQ	AMSC	Fri, Aug 19, 2016	7.01	7.08	6.80	6.86
6103	NASDAQ	AMSC	Thu, Aug 18, 2016	6.77	7.05	6.77	7.01
6102	NASDAQ	AMSC	Wed, Aug 17, 2016	6.85	6.99	6.77	6.77
6101	NASDAQ	AMSC	Tue, Aug 16, 2016	6.83	6.99	6.76	6.87
6100	NASDAQ	AMSC	Mon, Aug 15, 2016	6.70	7.00	6.67	6.82
6099	NASDAQ	AMSC	Fri, Aug 12, 2016	6.68	6.95	6.65	6.75
6098	NASDAQ	AMSC	Thu, Aug 11, 2016	7.16	7.49	6.65	6.70
6097	NASDAQ	AMSC	Wed, Aug 10, 2016	7.23	7.27	7.13	7.17
6096	NASDAQ	AMSC	Tue, Aug 9, 2016	9.05	9.10	7.00	7.19
6095	NASDAQ	AMSC	Mon, Aug 8, 2016	9.02	9.38	8.83	9.30
6094	NASDAQ	AMSC	Fri, Aug 5, 2016	8.87	9.10	8.83	8.98
6093	NASDAQ	AMSC	Thu, Aug 4, 2016	8.95	9.07	8.81	8.86
6092	NASDAQ	AMSC	Wed, Aug 3, 2016	8.80	9.06	8.71	8.89
6091	NASDAQ	AMSC	Tue, Aug 2, 2016	9.03	9.18	8.90	8.90
6090	NASDAQ	AMSC	Mon, Aug 1, 2016	9.16	9.28	8.95	9.08
6089	NASDAQ	AMSC	Fri, Jul 29, 2016	9.05	9.29	8.97	9.18
6088	NASDAQ	AMSC	Thu, Jul 28, 2016	8.99	9.30	8.99	9.05
6087	NASDAQ	AMSC	Wed, Jul 27, 2016	8.72	9.14	8.67	9.00
6086	NASDAQ	AMSC	Tue, Jul 26, 2016	8.68	8.98	8.65	8.83
6085	NASDAQ	AMSC	Mon, Jul 25, 2016	8.74	8.84	8.56	8.71
6084	NASDAQ	AMSC	Fri, Jul 22, 2016	8.74	8.85	8.54	8.78
6083	NASDAQ	AMSC	Thu, Jul 21, 2016	8.83	8.95	8.64	8.79
6082	NASDAQ	AMSC	Wed, Jul 20, 2016	8.82	9.06	8.62	8.82
6081	NASDAQ	AMSC	Tue, Jul 19, 2016	9.28	9.32	8.80	8.84
6080	NASDAQ	AMSC	Mon, Jul 18, 2016	9.20	9.36	9.03	9.29
6079	NASDAQ	AMSC	Fri, Jul 15, 2016	9.26	9.33	9.01	9.26
6078	NASDAQ	AMSC	Thu, Jul 14, 2016	9.39	9.39	9.12	9.19
6077	NASDAQ	AMSC	Wed, Jul 13, 2016	9.56	9.63	9.10	9.28
6076	NASDAQ	AMSC	Tue, Jul 12, 2016	9.22	9.58	9.20	9.51
6075	NASDAQ	AMSC	Mon, Jul 11, 2016	8.73	9.48	8.72	9.12
6074	NASDAQ	AMSC	Fri, Jul 8, 2016	8.61	8.79	8.47	8.71
6073	NASDAQ	AMSC	Thu, Jul 7, 2016	8.52	8.74	8.31	8.52
6072	NASDAQ	AMSC	Wed, Jul 6, 2016	8.35	8.51	8.22	8.49
6071	NASDAQ	AMSC	Tue, Jul 5, 2016	8.35	8.41	8.08	8.36
6070	NASDAQ	AMSC	Fri, Jul 1, 2016	8.31	8.61	8.26	8.46
6069	NASDAQ	AMSC	Thu, Jun 30, 2016	8.60	8.63	8.23	8.44
6068	NASDAQ	AMSC	Wed, Jun 29, 2016	8.43	8.65	8.23	8.57
6067	NASDAQ	AMSC	Tue, Jun 28, 2016	8.03	8.64	8.03	8.34
6066	NASDAQ	AMSC	Mon, Jun 27, 2016	8.15	8.25	7.72	7.93
6065	NASDAQ	AMSC	Fri, Jun 24, 2016	8.38	8.46	8.05	8.19
6064	NASDAQ	AMSC	Thu, Jun 23, 2016	8.63	9.07	8.42	8.73
6063	NASDAQ	AMSC	Wed, Jun 22, 2016	8.88	9.13	8.48	8.57
6062	NASDAQ	AMSC	Tue, Jun 21, 2016	8.53	9.10	8.53	8.90
6061	NASDAQ	AMSC	Mon, Jun 20, 2016	8.34	8.61	8.22	8.37
6060	NASDAQ	AMSC	Fri, Jun 17, 2016	8.25	8.45	8.20	8.27
6059	NASDAQ	AMSC	Thu, Jun 16, 2016	8.31	8.56	8.15	8.32
6058	NASDAQ	AMSC	Wed, Jun 15, 2016	8.62	8.96	8.35	8.56
6057	NASDAQ	AMSC	Tue, Jun 14, 2016	8.42	8.91	8.42	8.60
6056	NASDAQ	AMSC	Mon, Jun 13, 2016	8.73	9.11	8.51	8.59
6055	NASDAQ	AMSC	Fri, Jun 10, 2016	9.10	9.20	8.52	8.81
6054	NASDAQ	AMSC	Thu, Jun 9, 2016	8.67	9.14	8.67	9.09
6053	NASDAQ	AMSC	Wed, Jun 8, 2016	8.42	8.86	8.42	8.75
6052	NASDAQ	AMSC	Tue, Jun 7, 2016	8.19	8.49	7.93	8.37
6051	NASDAQ	AMSC	Mon, Jun 6, 2016	8.65	8.78	8.12	8.17
6050	NASDAQ	AMSC	Fri, Jun 3, 2016	8.95	8.97	8.50	8.66
6049	NASDAQ	AMSC	Thu, Jun 2, 2016	8.96	9.25	8.70	8.75
6048	NASDAQ	AMSC	Wed, Jun 1, 2016	9.75	9.76	8.86	9.26
6047	NASDAQ	AMSC	Tue, May 31, 2016	10.19	10.22	9.25	9.77
6046	NASDAQ	AMSC	Fri, May 27, 2016	10.40	10.62	10.20	10.45
6045	NASDAQ	AMSC	Thu, May 26, 2016	10.53	10.83	10.10	10.45
6044	NASDAQ	AMSC	Wed, May 25, 2016	10.49	10.83	10.00	10.62
6043	NASDAQ	AMSC	Tue, May 24, 2016	10.82	11.00	10.44	10.49
6042	NASDAQ	AMSC	Mon, May 23, 2016	10.57	10.96	10.57	10.70
6041	NASDAQ	AMSC	Fri, May 20, 2016	10.77	11.05	10.53	10.57
6040	NASDAQ	AMSC	Thu, May 19, 2016	10.30	10.95	10.27	10.77
6039	NASDAQ	AMSC	Wed, May 18, 2016	10.00	10.47	9.84	10.04
6038	NASDAQ	AMSC	Tue, May 17, 2016	10.88	11.15	10.05	10.19
6037	NASDAQ	AMSC	Mon, May 16, 2016	10.02	11.00	10.02	10.85
6036	NASDAQ	AMSC	Fri, May 13, 2016	11.01	11.53	10.40	10.54
6035	NASDAQ	AMSC	Thu, May 12, 2016	11.56	11.74	10.82	10.98
6034	NASDAQ	AMSC	Wed, May 11, 2016	11.40	11.82	11.13	11.50
6033	NASDAQ	AMSC	Tue, May 10, 2016	11.17	11.59	11.08	11.36
6032	NASDAQ	AMSC	Mon, May 9, 2016	11.42	11.42	10.69	11.11
6031	NASDAQ	AMSC	Fri, May 6, 2016	11.90	11.90	10.97	11.44
6030	NASDAQ	AMSC	Thu, May 5, 2016	11.59	12.50	11.31	11.90
6029	NASDAQ	AMSC	Wed, May 4, 2016	10.86	11.94	10.54	11.73
6028	NASDAQ	AMSC	Tue, May 3, 2016	10.62	11.15	10.31	10.76
6027	NASDAQ	AMSC	Mon, May 2, 2016	10.01	11.16	9.91	10.89
6026	NASDAQ	AMSC	Fri, Apr 29, 2016	9.55	10.15	9.55	9.96
6025	NASDAQ	AMSC	Thu, Apr 28, 2016	9.84	9.86	9.48	9.61
6024	NASDAQ	AMSC	Wed, Apr 27, 2016	9.86	10.02	9.66	9.79
6023	NASDAQ	AMSC	Tue, Apr 26, 2016	9.00	9.85	8.86	9.76
6022	NASDAQ	AMSC	Mon, Apr 25, 2016	8.82	9.00	8.63	8.97
6021	NASDAQ	AMSC	Fri, Apr 22, 2016	8.74	8.94	8.68	8.79
6020	NASDAQ	AMSC	Thu, Apr 21, 2016	8.67	8.89	8.51	8.67
6019	NASDAQ	AMSC	Wed, Apr 20, 2016	8.67	9.05	8.46	8.73
6018	NASDAQ	AMSC	Tue, Apr 19, 2016	8.35	8.92	8.35	8.57
6017	NASDAQ	AMSC	Mon, Apr 18, 2016	8.19	8.36	7.98	8.31
6016	NASDAQ	AMSC	Fri, Apr 15, 2016	8.26	8.41	8.01	8.25
6015	NASDAQ	AMSC	Thu, Apr 14, 2016	8.08	8.42	7.97	8.22
6014	NASDAQ	AMSC	Wed, Apr 13, 2016	8.07	8.18	7.87	8.10
6013	NASDAQ	AMSC	Tue, Apr 12, 2016	7.93	8.11	7.92	7.99
6012	NASDAQ	AMSC	Mon, Apr 11, 2016	8.27	8.31	7.78	7.93
6011	NASDAQ	AMSC	Fri, Apr 8, 2016	8.67	8.90	8.11	8.25
6010	NASDAQ	AMSC	Thu, Apr 7, 2016	8.50	8.65	8.32	8.64
6009	NASDAQ	AMSC	Wed, Apr 6, 2016	8.24	8.48	8.11	8.47
6008	NASDAQ	AMSC	Tue, Apr 5, 2016	8.00	8.00	8.00	8.22
6007	NASDAQ	AMSC	Mon, Apr 4, 2016	8.10	8.25	7.80	8.00
6006	NASDAQ	AMSC	Fri, Apr 1, 2016	7.44	8.17	7.44	8.07
6005	NASDAQ	AMSC	Thu, Mar 31, 2016	7.52	7.57	7.43	7.53
6004	NASDAQ	AMSC	Wed, Mar 30, 2016	7.54	7.77	7.35	7.52
6003	NASDAQ	AMSC	Tue, Mar 29, 2016	7.18	7.55	7.15	7.55
6002	NASDAQ	AMSC	Mon, Mar 28, 2016	7.51	7.72	7.30	7.30
6001	NASDAQ	AMSC	Thu, Mar 24, 2016	7.44	7.44	7.44	7.45
6000	NASDAQ	AMSC	Wed, Mar 23, 2016	7.65	7.93	7.33	7.44
5999	NASDAQ	AMSC	Tue, Mar 22, 2016	7.78	7.81	7.65	7.70
5998	NASDAQ	AMSC	Mon, Mar 21, 2016	7.64	8.06	7.59	7.72
5997	NASDAQ	AMSC	Fri, Mar 18, 2016	7.50	7.75	7.50	7.64
5996	NASDAQ	AMSC	Thu, Mar 17, 2016	7.35	7.68	7.26	7.41
5995	NASDAQ	AMSC	Wed, Mar 16, 2016	7.39	7.50	7.20	7.36
5994	NASDAQ	AMSC	Tue, Mar 15, 2016	7.53	7.53	7.53	7.38
5993	NASDAQ	AMSC	Mon, Mar 14, 2016	7.63	7.83	7.50	7.53
5992	NASDAQ	AMSC	Fri, Mar 11, 2016	7.76	7.76	7.76	7.69
5991	NASDAQ	AMSC	Thu, Mar 10, 2016	8.41	8.41	8.41	7.76
5990	NASDAQ	AMSC	Wed, Mar 9, 2016	8.57	8.88	8.38	8.69
5989	NASDAQ	AMSC	Tue, Mar 8, 2016	8.03	9.05	8.03	7.96
5988	NASDAQ	AMSC	Mon, Mar 7, 2016	7.27	8.03	7.27	7.96
5987	NASDAQ	AMSC	Fri, Mar 4, 2016	7.56	7.79	7.27	7.41
5986	NASDAQ	AMSC	Thu, Mar 3, 2016	7.29	7.29	7.29	7.55
5985	NASDAQ	AMSC	Wed, Mar 2, 2016	6.84	7.43	6.84	6.84
5984	NASDAQ	AMSC	Tue, Mar 1, 2016	6.86	7.04	6.78	6.85
5983	NASDAQ	AMSC	Mon, Feb 29, 2016	6.53	6.86	6.50	6.53
5982	NASDAQ	AMSC	Fri, Feb 26, 2016	6.43	6.59	6.08	6.53
5981	NASDAQ	AMSC	Thu, Feb 25, 2016	6.21	6.41	6.10	6.33
5980	NASDAQ	AMSC	Wed, Feb 24, 2016	5.96	6.43	5.84	6.26
5979	NASDAQ	AMSC	Tue, Feb 23, 2016	6.08	6.13	5.95	6.01
5978	NASDAQ	AMSC	Mon, Feb 22, 2016	5.91	6.15	5.91	6.14
5977	NASDAQ	AMSC	Fri, Feb 19, 2016	5.87	6.04	5.84	5.90
5976	NASDAQ	AMSC	Thu, Feb 18, 2016	6.05	6.10	5.95	5.97
5975	NASDAQ	AMSC	Wed, Feb 17, 2016	5.92	6.15	5.89	6.02
5974	NASDAQ	AMSC	Tue, Feb 16, 2016	5.75	6.03	5.74	5.89
5973	NASDAQ	AMSC	Fri, Feb 12, 2016	5.87	6.12	5.55	5.61
5972	NASDAQ	AMSC	Thu, Feb 11, 2016	6.44	6.44	5.90	5.90
5971	NASDAQ	AMSC	Wed, Feb 10, 2016	6.61	6.73	6.39	6.52
5970	NASDAQ	AMSC	Tue, Feb 9, 2016	6.54	6.74	6.29	6.51
5969	NASDAQ	AMSC	Mon, Feb 8, 2016	6.74	6.75	6.41	6.60
5968	NASDAQ	AMSC	Fri, Feb 5, 2016	6.85	6.85	6.73	6.76
5967	NASDAQ	AMSC	Thu, Feb 4, 2016	6.38	6.86	6.20	6.81
5966	NASDAQ	AMSC	Wed, Feb 3, 2016	6.40	6.42	6.13	6.38
5965	NASDAQ	AMSC	Tue, Feb 2, 2016	6.01	6.54	6.01	6.35
5964	NASDAQ	AMSC	Mon, Feb 1, 2016	6.21	6.21	5.91	6.04
5963	NASDAQ	AMSC	Fri, Jan 29, 2016	5.78	6.35	5.78	6.27
5962	NASDAQ	AMSC	Thu, Jan 28, 2016	5.95	6.01	5.80	5.82
5961	NASDAQ	AMSC	Wed, Jan 27, 2016	5.98	6.13	5.90	5.97
5960	NASDAQ	AMSC	Tue, Jan 26, 2016	5.85	6.16	5.70	6.03
5959	NASDAQ	AMSC	Mon, Jan 25, 2016	6.26	6.39	5.77	5.85
5958	NASDAQ	AMSC	Fri, Jan 22, 2016	6.00	6.37	5.86	6.30
5957	NASDAQ	AMSC	Thu, Jan 21, 2016	6.09	6.25	5.78	5.98
5956	NASDAQ	AMSC	Wed, Jan 20, 2016	5.53	6.17	5.28	6.14
5955	NASDAQ	AMSC	Tue, Jan 19, 2016	6.50	6.91	5.74	5.79
5954	NASDAQ	AMSC	Fri, Jan 15, 2016	5.66	6.57	5.53	6.39
5953	NASDAQ	AMSC	Thu, Jan 14, 2016	5.84	6.08	5.35	5.81
5952	NASDAQ	AMSC	Wed, Jan 13, 2016	5.99	6.42	5.82	5.86
5951	NASDAQ	AMSC	Tue, Jan 12, 2016	5.85	6.01	5.67	5.81
5950	NASDAQ	AMSC	Mon, Jan 11, 2016	6.06	6.07	5.55	5.78
5949	NASDAQ	AMSC	Fri, Jan 8, 2016	6.20	6.36	5.89	5.97
5948	NASDAQ	AMSC	Thu, Jan 7, 2016	6.38	6.60	6.09	6.19
5947	NASDAQ	AMSC	Wed, Jan 6, 2016	6.68	6.73	6.46	6.48
5946	NASDAQ	AMSC	Tue, Jan 5, 2016	6.60	6.86	6.43	6.82
5945	NASDAQ	AMSC	Mon, Jan 4, 2016	6.24	6.83	6.16	6.63
5944	NASDAQ	AMSC	Thu, Dec 31, 2015	7.01	7.26	6.33	6.37
5943	NASDAQ	AMSC	Wed, Dec 30, 2015	6.83	7.89	6.74	6.81
5942	NASDAQ	AMSC	Tue, Dec 29, 2015	6.59	6.83	6.39	6.67
5941	NASDAQ	AMSC	Mon, Dec 28, 2015	6.12	6.85	6.00	6.67
5940	NASDAQ	AMSC	Thu, Dec 24, 2015	6.11	6.19	5.93	6.13
5939	NASDAQ	AMSC	Wed, Dec 23, 2015	5.73	6.20	5.67	5.98
5938	NASDAQ	AMSC	Tue, Dec 22, 2015	5.79	5.88	5.60	5.68
5937	NASDAQ	AMSC	Mon, Dec 21, 2015	5.44	5.96	5.44	5.73
5936	NASDAQ	AMSC	Fri, Dec 18, 2015	5.80	5.89	5.39	5.45
5935	NASDAQ	AMSC	Thu, Dec 17, 2015	5.22	6.05	4.90	5.88
5934	NASDAQ	AMSC	Wed, Dec 16, 2015	4.30	4.41	4.19	4.21
5933	NASDAQ	AMSC	Tue, Dec 15, 2015	4.19	4.34	4.05	4.28
5932	NASDAQ	AMSC	Mon, Dec 14, 2015	4.59	4.78	4.16	4.17
5931	NASDAQ	AMSC	Fri, Dec 11, 2015	4.37	4.79	4.25	4.62
5930	NASDAQ	AMSC	Thu, Dec 10, 2015	4.81	4.81	4.17	4.42
5929	NASDAQ	AMSC	Wed, Dec 9, 2015	3.98	4.02	3.81	3.85
5928	NASDAQ	AMSC	Tue, Dec 8, 2015	4.21	4.25	3.94	3.96
5927	NASDAQ	AMSC	Mon, Dec 7, 2015	4.60	4.67	4.25	4.29
5926	NASDAQ	AMSC	Fri, Dec 4, 2015	4.72	4.72	4.60	4.65
5925	NASDAQ	AMSC	Thu, Dec 3, 2015	4.75	4.81	4.62	4.70
5924	NASDAQ	AMSC	Wed, Dec 2, 2015	4.82	4.82	4.65	4.72
5923	NASDAQ	AMSC	Tue, Dec 1, 2015	4.76	4.77	4.51	4.75
5922	NASDAQ	AMSC	Mon, Nov 30, 2015	4.35	4.90	4.35	4.71
5921	NASDAQ	AMSC	Fri, Nov 27, 2015	4.08	4.34	4.08	4.30
5920	NASDAQ	AMSC	Wed, Nov 25, 2015	4.03	4.10	3.90	4.10
5919	NASDAQ	AMSC	Tue, Nov 24, 2015	3.95	4.11	3.89	4.02
5918	NASDAQ	AMSC	Mon, Nov 23, 2015	3.92	3.99	3.86	3.95
5917	NASDAQ	AMSC	Fri, Nov 20, 2015	3.93	4.07	3.91	3.95
5916	NASDAQ	AMSC	Thu, Nov 19, 2015	4.12	4.12	3.90	3.93
5915	NASDAQ	AMSC	Wed, Nov 18, 2015	4.17	4.27	4.00	4.06
5914	NASDAQ	AMSC	Tue, Nov 17, 2015	4.28	4.33	4.15	4.18
5913	NASDAQ	AMSC	Mon, Nov 16, 2015	4.23	4.35	4.21	4.23
5912	NASDAQ	AMSC	Fri, Nov 13, 2015	4.19	4.25	4.15	4.23
5911	NASDAQ	AMSC	Thu, Nov 12, 2015	4.38	4.44	4.23	4.23
5910	NASDAQ	AMSC	Wed, Nov 11, 2015	4.43	4.49	4.38	4.39
5909	NASDAQ	AMSC	Tue, Nov 10, 2015	4.50	4.61	4.41	4.43
5908	NASDAQ	AMSC	Mon, Nov 9, 2015	4.60	4.63	4.42	4.52
5907	NASDAQ	AMSC	Fri, Nov 6, 2015	4.51	4.60	4.40	4.59
5906	NASDAQ	AMSC	Thu, Nov 5, 2015	4.76	4.80	4.51	4.51
5905	NASDAQ	AMSC	Wed, Nov 4, 2015	5.12	5.29	4.73	4.77
5904	NASDAQ	AMSC	Tue, Nov 3, 2015	5.65	5.65	5.02	5.11
5903	NASDAQ	AMSC	Mon, Nov 2, 2015	5.50	5.80	5.35	5.65
5902	NASDAQ	AMSC	Fri, Oct 30, 2015	5.24	5.65	5.24	5.43
5901	NASDAQ	AMSC	Thu, Oct 29, 2015	5.12	5.28	5.07	5.27
5900	NASDAQ	AMSC	Wed, Oct 28, 2015	5.24	5.24	5.04	5.14
5899	NASDAQ	AMSC	Tue, Oct 27, 2015	5.06	5.24	5.00	5.07
5898	NASDAQ	AMSC	Mon, Oct 26, 2015	5.08	5.24	4.98	5.12
5897	NASDAQ	AMSC	Fri, Oct 23, 2015	5.10	5.22	5.03	5.06
5896	NASDAQ	AMSC	Thu, Oct 22, 2015	5.06	5.36	5.00	5.00
5895	NASDAQ	AMSC	Wed, Oct 21, 2015	5.28	5.35	5.05	5.05
5894	NASDAQ	AMSC	Tue, Oct 20, 2015	5.14	5.42	5.14	5.21
5893	NASDAQ	AMSC	Mon, Oct 19, 2015	5.15	5.26	5.07	5.13
5892	NASDAQ	AMSC	Fri, Oct 16, 2015	5.19	5.42	5.15	5.16
5891	NASDAQ	AMSC	Thu, Oct 15, 2015	5.25	5.41	5.09	5.22
5890	NASDAQ	AMSC	Wed, Oct 14, 2015	5.30	5.44	5.12	5.27
5889	NASDAQ	AMSC	Tue, Oct 13, 2015	5.10	5.35	5.10	5.32
5888	NASDAQ	AMSC	Mon, Oct 12, 2015	5.21	5.21	5.03	5.16
5887	NASDAQ	AMSC	Fri, Oct 9, 2015	5.20	5.25	5.00	5.16
5886	NASDAQ	AMSC	Thu, Oct 8, 2015	5.04	5.25	5.00	5.16
5885	NASDAQ	AMSC	Wed, Oct 7, 2015	4.68	5.15	4.68	5.04
5884	NASDAQ	AMSC	Tue, Oct 6, 2015	4.45	4.70	4.45	4.64
5883	NASDAQ	AMSC	Mon, Oct 5, 2015	4.35	4.51	4.35	4.43
5882	NASDAQ	AMSC	Fri, Oct 2, 2015	4.23	4.36	4.21	4.31
5881	NASDAQ	AMSC	Thu, Oct 1, 2015	4.30	4.50	4.25	4.26
5880	NASDAQ	AMSC	Wed, Sep 30, 2015	4.33	4.42	4.24	4.33
5879	NASDAQ	AMSC	Tue, Sep 29, 2015	4.43	4.46	4.24	4.31
5878	NASDAQ	AMSC	Mon, Sep 28, 2015	4.49	4.75	4.35	4.40
5877	NASDAQ	AMSC	Fri, Sep 25, 2015	4.62	4.79	4.43	4.44
5876	NASDAQ	AMSC	Thu, Sep 24, 2015	4.54	4.64	4.42	4.59
5875	NASDAQ	AMSC	Wed, Sep 23, 2015	4.90	5.08	4.55	4.57
5874	NASDAQ	AMSC	Tue, Sep 22, 2015	4.85	4.99	4.85	4.90
5873	NASDAQ	AMSC	Mon, Sep 21, 2015	5.04	5.14	4.90	4.97
5872	NASDAQ	AMSC	Fri, Sep 18, 2015	4.83	5.11	4.83	5.00
5871	NASDAQ	AMSC	Thu, Sep 17, 2015	4.90	5.09	4.90	4.98
5870	NASDAQ	AMSC	Wed, Sep 16, 2015	4.90	5.10	4.84	4.91
5869	NASDAQ	AMSC	Tue, Sep 15, 2015	4.68	4.94	4.68	4.83
5868	NASDAQ	AMSC	Mon, Sep 14, 2015	4.86	4.88	4.60	4.65
5867	NASDAQ	AMSC	Fri, Sep 11, 2015	4.96	5.06	4.85	4.88
5866	NASDAQ	AMSC	Thu, Sep 10, 2015	5.17	5.21	4.97	5.00
5865	NASDAQ	AMSC	Wed, Sep 9, 2015	5.24	5.32	5.02	5.13
5864	NASDAQ	AMSC	Tue, Sep 8, 2015	4.96	5.25	4.94	5.20
5863	NASDAQ	AMSC	Fri, Sep 4, 2015	4.87	5.03	4.81	4.85
5862	NASDAQ	AMSC	Thu, Sep 3, 2015	4.93	5.09	4.83	4.94
5861	NASDAQ	AMSC	Wed, Sep 2, 2015	5.04	5.04	4.74	4.90
5860	NASDAQ	AMSC	Tue, Sep 1, 2015	5.41	5.45	4.91	4.99
5859	NASDAQ	AMSC	Mon, Aug 31, 2015	5.22	5.94	4.96	5.45
5858	NASDAQ	AMSC	Fri, Aug 28, 2015	4.44	4.72	4.33	4.67
5857	NASDAQ	AMSC	Thu, Aug 27, 2015	4.18	4.88	4.08	4.51
5856	NASDAQ	AMSC	Wed, Aug 26, 2015	4.08	4.16	3.86	4.10
5855	NASDAQ	AMSC	Tue, Aug 25, 2015	3.60	4.19	3.48	4.02
5854	NASDAQ	AMSC	Mon, Aug 24, 2015	3.35	3.68	3.26	3.51
5853	NASDAQ	AMSC	Fri, Aug 21, 2015	3.53	3.66	3.44	3.48
5852	NASDAQ	AMSC	Thu, Aug 20, 2015	3.73	3.85	3.58	3.61
5851	NASDAQ	AMSC	Wed, Aug 19, 2015	3.95	3.97	3.76	3.76
5850	NASDAQ	AMSC	Tue, Aug 18, 2015	4.08	4.20	3.95	3.95
5849	NASDAQ	AMSC	Mon, Aug 17, 2015	4.12	4.25	4.10	4.11
5848	NASDAQ	AMSC	Fri, Aug 14, 2015	4.07	4.20	4.07	4.11
5847	NASDAQ	AMSC	Thu, Aug 13, 2015	4.24	4.29	4.10	4.13
5846	NASDAQ	AMSC	Wed, Aug 12, 2015	4.20	4.34	4.10	4.25
5845	NASDAQ	AMSC	Tue, Aug 11, 2015	4.34	4.34	4.15	4.19
5844	NASDAQ	AMSC	Mon, Aug 10, 2015	4.65	4.65	4.20	4.41
5843	NASDAQ	AMSC	Fri, Aug 7, 2015	4.52	4.67	4.46	4.54
5842	NASDAQ	AMSC	Thu, Aug 6, 2015	4.43	4.52	4.30	4.52
5841	NASDAQ	AMSC	Wed, Aug 5, 2015	4.70	4.95	4.26	4.39
5840	NASDAQ	AMSC	Tue, Aug 4, 2015	4.77	4.98	4.71	4.95
5839	NASDAQ	AMSC	Mon, Aug 3, 2015	5.08	5.09	4.70	4.74
5838	NASDAQ	AMSC	Fri, Jul 31, 2015	4.86	5.30	4.86	5.00
5837	NASDAQ	AMSC	Thu, Jul 30, 2015	5.03	5.22	4.84	4.84
5836	NASDAQ	AMSC	Wed, Jul 29, 2015	4.94	5.17	4.92	5.05
5835	NASDAQ	AMSC	Tue, Jul 28, 2015	4.93	5.19	4.93	4.95
5834	NASDAQ	AMSC	Mon, Jul 27, 2015	5.04	5.05	4.82	4.89
5833	NASDAQ	AMSC	Fri, Jul 24, 2015	5.00	5.19	4.95	5.09
5832	NASDAQ	AMSC	Thu, Jul 23, 2015	5.10	5.20	4.95	4.97
5831	NASDAQ	AMSC	Wed, Jul 22, 2015	5.15	5.21	5.06	5.10
5830	NASDAQ	AMSC	Tue, Jul 21, 2015	4.94	5.21	4.89	5.18
5829	NASDAQ	AMSC	Mon, Jul 20, 2015	5.11	5.27	4.93	4.94
5828	NASDAQ	AMSC	Fri, Jul 17, 2015	5.27	5.35	5.10	5.14
5827	NASDAQ	AMSC	Thu, Jul 16, 2015	5.05	5.23	5.01	5.19
5826	NASDAQ	AMSC	Wed, Jul 15, 2015	5.27	5.27	4.96	5.00
5825	NASDAQ	AMSC	Tue, Jul 14, 2015	5.13	5.38	5.00	5.24
5824	NASDAQ	AMSC	Mon, Jul 13, 2015	5.13	5.13	5.02	5.07
5823	NASDAQ	AMSC	Fri, Jul 10, 2015	5.03	5.28	4.97	5.14
5822	NASDAQ	AMSC	Thu, Jul 9, 2015	4.84	5.04	4.84	4.94
5821	NASDAQ	AMSC	Wed, Jul 8, 2015	4.76	4.89	4.70	4.81
5820	NASDAQ	AMSC	Tue, Jul 7, 2015	5.03	5.03	4.75	4.88
5819	NASDAQ	AMSC	Mon, Jul 6, 2015	5.06	5.09	5.02	5.03
5818	NASDAQ	AMSC	Thu, Jul 2, 2015	5.02	5.17	5.01	5.12
5817	NASDAQ	AMSC	Wed, Jul 1, 2015	5.30	5.34	5.00	5.05
5816	NASDAQ	AMSC	Tue, Jun 30, 2015	5.20	5.30	5.10	5.23
5815	NASDAQ	AMSC	Mon, Jun 29, 2015	5.37	5.38	5.14	5.15
5814	NASDAQ	AMSC	Fri, Jun 26, 2015	5.50	5.50	5.33	5.44
5813	NASDAQ	AMSC	Thu, Jun 25, 2015	5.41	5.57	5.41	5.57
5812	NASDAQ	AMSC	Wed, Jun 24, 2015	5.60	5.63	5.37	5.45
5811	NASDAQ	AMSC	Tue, Jun 23, 2015	5.79	5.79	5.62	5.64
5810	NASDAQ	AMSC	Mon, Jun 22, 2015	5.85	5.86	5.70	5.83
5809	NASDAQ	AMSC	Fri, Jun 19, 2015	5.97	5.97	5.73	5.85
5808	NASDAQ	AMSC	Thu, Jun 18, 2015	5.91	6.01	5.88	5.88
5807	NASDAQ	AMSC	Wed, Jun 17, 2015	5.99	5.99	5.90	5.92
5806	NASDAQ	AMSC	Tue, Jun 16, 2015	5.97	6.03	5.88	5.98
5805	NASDAQ	AMSC	Mon, Jun 15, 2015	6.03	6.10	5.88	5.99
5804	NASDAQ	AMSC	Fri, Jun 12, 2015	6.15	6.18	6.06	6.08
5803	NASDAQ	AMSC	Thu, Jun 11, 2015	6.05	6.18	6.05	6.16
5802	NASDAQ	AMSC	Wed, Jun 10, 2015	6.21	6.25	6.05	6.05
5801	NASDAQ	AMSC	Tue, Jun 9, 2015	6.32	6.34	6.11	6.13
5800	NASDAQ	AMSC	Mon, Jun 8, 2015	5.97	6.80	5.93	6.32
5799	NASDAQ	AMSC	Fri, Jun 5, 2015	6.06	6.14	5.97	6.00
5798	NASDAQ	AMSC	Thu, Jun 4, 2015	6.12	6.20	6.04	6.10
5797	NASDAQ	AMSC	Wed, Jun 3, 2015	6.15	6.37	6.15	6.17
5796	NASDAQ	AMSC	Tue, Jun 2, 2015	5.97	6.35	5.87	6.26
5795	NASDAQ	AMSC	Mon, Jun 1, 2015	6.25	6.25	5.90	6.03
5794	NASDAQ	AMSC	Fri, May 29, 2015	6.16	6.34	6.06	6.19
5793	NASDAQ	AMSC	Thu, May 28, 2015	6.49	6.49	6.12	6.22
5792	NASDAQ	AMSC	Wed, May 27, 2015	6.32	6.52	6.21	6.48
5791	NASDAQ	AMSC	Tue, May 26, 2015	6.27	6.35	6.14	6.35
5790	NASDAQ	AMSC	Fri, May 22, 2015	6.35	6.46	6.26	6.32
5789	NASDAQ	AMSC	Thu, May 21, 2015	6.33	6.47	6.32	6.40
5788	NASDAQ	AMSC	Wed, May 20, 2015	6.45	6.47	6.25	6.33
5787	NASDAQ	AMSC	Tue, May 19, 2015	6.40	6.60	6.35	6.43
5786	NASDAQ	AMSC	Mon, May 18, 2015	6.40	6.50	6.31	6.40
5785	NASDAQ	AMSC	Fri, May 15, 2015	6.43	6.53	6.40	6.43
5784	NASDAQ	AMSC	Thu, May 14, 2015	6.54	6.60	6.42	6.47
5783	NASDAQ	AMSC	Wed, May 13, 2015	6.52	6.69	6.40	6.50
5782	NASDAQ	AMSC	Tue, May 12, 2015	6.53	6.55	6.37	6.54
5781	NASDAQ	AMSC	Mon, May 11, 2015	6.38	6.60	6.38	6.54
5780	NASDAQ	AMSC	Fri, May 8, 2015	6.67	6.67	6.42	6.51
5779	NASDAQ	AMSC	Thu, May 7, 2015	6.42	6.57	6.38	6.55
5778	NASDAQ	AMSC	Wed, May 6, 2015	6.70	6.71	6.43	6.51
5777	NASDAQ	AMSC	Tue, May 5, 2015	6.80	6.80	6.41	6.67
5776	NASDAQ	AMSC	Mon, May 4, 2015	6.64	6.75	6.40	6.49
5775	NASDAQ	AMSC	Fri, May 1, 2015	6.44	6.69	6.38	6.64
5774	NASDAQ	AMSC	Thu, Apr 30, 2015	6.60	6.65	6.30	6.47
5773	NASDAQ	AMSC	Wed, Apr 29, 2015	6.65	6.85	6.65	6.70
5772	NASDAQ	AMSC	Tue, Apr 28, 2015	6.98	6.98	6.65	6.70
5771	NASDAQ	AMSC	Mon, Apr 27, 2015	6.88	7.10	6.88	7.00
5770	NASDAQ	AMSC	Fri, Apr 24, 2015	7.14	7.30	6.40	6.88
5769	NASDAQ	AMSC	Thu, Apr 23, 2015	10.41	10.84	9.80	10.00
5768	NASDAQ	AMSC	Wed, Apr 22, 2015	9.49	10.89	9.21	10.40
5767	NASDAQ	AMSC	Tue, Apr 21, 2015	8.90	9.60	8.27	9.20
5766	NASDAQ	AMSC	Mon, Apr 20, 2015	7.59	7.85	7.48	7.74
5765	NASDAQ	AMSC	Fri, Apr 17, 2015	7.96	8.04	7.44	7.59
5764	NASDAQ	AMSC	Thu, Apr 16, 2015	7.71	8.20	7.60	7.98
5763	NASDAQ	AMSC	Wed, Apr 15, 2015	7.31	7.93	7.17	7.76
5762	NASDAQ	AMSC	Tue, Apr 14, 2015	7.26	7.36	7.06	7.28
5761	NASDAQ	AMSC	Mon, Apr 13, 2015	7.22	7.26	7.08	7.21
5760	NASDAQ	AMSC	Fri, Apr 10, 2015	7.13	7.35	7.07	7.20
5759	NASDAQ	AMSC	Thu, Apr 9, 2015	7.13	7.18	6.88	7.11
5758	NASDAQ	AMSC	Wed, Apr 8, 2015	7.11	7.29	7.00	7.18
5757	NASDAQ	AMSC	Tue, Apr 7, 2015	7.08	7.40	7.05	7.11
5756	NASDAQ	AMSC	Mon, Apr 6, 2015	6.85	7.29	6.85	7.11
5755	NASDAQ	AMSC	Thu, Apr 2, 2015	6.35	6.87	6.35	6.85
5754	NASDAQ	AMSC	Wed, Apr 1, 2015	6.39	6.44	6.12	6.38
5753	NASDAQ	AMSC	Tue, Mar 31, 2015	6.38	6.62	6.33	6.44
5752	NASDAQ	AMSC	Mon, Mar 30, 2015	6.38	6.59	6.10	6.43
5751	NASDAQ	AMSC	Fri, Mar 27, 2015	6.74	6.90	6.33	6.38
5750	NASDAQ	AMSC	Thu, Mar 26, 2015	7.22	7.22	6.73	6.77
5749	NASDAQ	AMSC	Wed, Mar 25, 2015	6.51	7.89	6.12	7.20
5748	NASDAQ	AMSC	Tue, Mar 24, 2015	7.20	7.30	6.83	7.01
5747	NASDAQ	AMSC	Mon, Mar 23, 2015	7.00	7.35	7.00	7.32
5746	NASDAQ	AMSC	Fri, Mar 20, 2015	7.28	7.70	7.00	7.00
5745	NASDAQ	AMSC	Thu, Mar 19, 2015	7.35	7.50	7.00	7.11
5744	NASDAQ	AMSC	Wed, Mar 18, 2015	7.60	7.75	7.11	7.25
5743	NASDAQ	AMSC	Tue, Mar 17, 2015	7.26	7.59	7.15	7.59
5742	NASDAQ	AMSC	Mon, Mar 16, 2015	7.70	7.70	7.30	7.40
5741	NASDAQ	AMSC	Fri, Mar 13, 2015	7.50	7.70	7.30	7.60
5740	NASDAQ	AMSC	Thu, Mar 12, 2015	7.98	7.98	7.26	7.60
5739	NASDAQ	AMSC	Wed, Mar 11, 2015	7.60	8.00	7.50	7.90
5738	NASDAQ	AMSC	Tue, Mar 10, 2015	7.90	8.08	7.62	8.00
5737	NASDAQ	AMSC	Mon, Mar 9, 2015	7.90	8.10	7.70	8.10
5736	NASDAQ	AMSC	Fri, Mar 6, 2015	8.00	8.30	7.80	8.05
5735	NASDAQ	AMSC	Thu, Mar 5, 2015	8.00	8.25	7.70	8.19
5734	NASDAQ	AMSC	Wed, Mar 4, 2015	7.70	8.00	7.53	7.99
5733	NASDAQ	AMSC	Tue, Mar 3, 2015	7.52	7.85	7.50	7.66
5732	NASDAQ	AMSC	Mon, Mar 2, 2015	8.20	8.20	7.50	7.70
5731	NASDAQ	AMSC	Fri, Feb 27, 2015	8.60	8.80	8.10	8.32
5730	NASDAQ	AMSC	Thu, Feb 26, 2015	8.70	8.80	8.30	8.60
5729	NASDAQ	AMSC	Wed, Feb 25, 2015	8.00	8.80	8.00	8.55
5728	NASDAQ	AMSC	Tue, Feb 24, 2015	7.60	8.00	7.42	7.97
5727	NASDAQ	AMSC	Mon, Feb 23, 2015	7.50	7.84	7.48	7.80
5726	NASDAQ	AMSC	Fri, Feb 20, 2015	7.70	7.70	7.40	7.70
5725	NASDAQ	AMSC	Thu, Feb 19, 2015	7.80	7.90	7.58	7.74
5724	NASDAQ	AMSC	Wed, Feb 18, 2015	8.00	8.00	7.60	7.80
5723	NASDAQ	AMSC	Tue, Feb 17, 2015	7.95	8.00	7.60	7.90
5722	NASDAQ	AMSC	Fri, Feb 13, 2015	7.50	8.00	7.50	8.00
5721	NASDAQ	AMSC	Thu, Feb 12, 2015	7.60	7.90	7.30	7.80
5720	NASDAQ	AMSC	Wed, Feb 11, 2015	7.95	7.95	7.15	7.40
5719	NASDAQ	AMSC	Tue, Feb 10, 2015	8.00	8.10	7.70	7.95
5718	NASDAQ	AMSC	Mon, Feb 9, 2015	7.80	8.10	7.40	7.84
5717	NASDAQ	AMSC	Fri, Feb 6, 2015	7.10	7.80	6.50	7.60
5716	NASDAQ	AMSC	Thu, Feb 5, 2015	7.80	7.80	7.02	7.22
5715	NASDAQ	AMSC	Wed, Feb 4, 2015	7.70	7.70	7.30	7.40
5714	NASDAQ	AMSC	Tue, Feb 3, 2015	7.20	7.60	7.00	7.60
5713	NASDAQ	AMSC	Mon, Feb 2, 2015	7.20	7.50	6.95	7.28
5712	NASDAQ	AMSC	Fri, Jan 30, 2015	7.10	7.10	6.80	7.00
5711	NASDAQ	AMSC	Thu, Jan 29, 2015	6.70	7.14	6.61	7.00
5710	NASDAQ	AMSC	Wed, Jan 28, 2015	6.40	7.50	6.40	6.58
5709	NASDAQ	AMSC	Tue, Jan 27, 2015	6.86	6.90	6.55	6.62
5708	NASDAQ	AMSC	Mon, Jan 26, 2015	6.30	7.00	6.20	7.00
5707	NASDAQ	AMSC	Fri, Jan 23, 2015	6.20	6.30	6.00	6.25
5706	NASDAQ	AMSC	Thu, Jan 22, 2015	6.10	6.10	5.67	6.09
5705	NASDAQ	AMSC	Wed, Jan 21, 2015	6.90	6.90	5.80	6.17
5704	NASDAQ	AMSC	Tue, Jan 20, 2015	7.70	7.70	6.50	6.60
5703	NASDAQ	AMSC	Fri, Jan 16, 2015	7.80	7.80	7.30	7.59
5702	NASDAQ	AMSC	Thu, Jan 15, 2015	7.79	7.80	7.10	7.41
5701	NASDAQ	AMSC	Wed, Jan 14, 2015	7.40	7.89	7.40	7.70
5700	NASDAQ	AMSC	Tue, Jan 13, 2015	7.80	7.80	7.40	7.65
5699	NASDAQ	AMSC	Mon, Jan 12, 2015	8.00	8.20	7.61	7.84
5698	NASDAQ	AMSC	Fri, Jan 9, 2015	8.20	8.40	7.80	8.10
5697	NASDAQ	AMSC	Thu, Jan 8, 2015	7.89	8.19	7.71	8.19
5696	NASDAQ	AMSC	Wed, Jan 7, 2015	8.02	8.10	7.61	7.95
5695	NASDAQ	AMSC	Tue, Jan 6, 2015	7.80	8.00	7.70	8.00
5694	NASDAQ	AMSC	Mon, Jan 5, 2015	7.90	8.20	7.61	7.90
5693	NASDAQ	AMSC	Fri, Jan 2, 2015	7.50	8.17	7.40	8.17
5692	NASDAQ	AMSC	Wed, Dec 31, 2014	7.50	7.70	7.31	7.41
5691	NASDAQ	AMSC	Tue, Dec 30, 2014	7.75	7.75	7.31	7.50
5690	NASDAQ	AMSC	Mon, Dec 29, 2014	7.90	8.00	7.40	7.57
5689	NASDAQ	AMSC	Fri, Dec 26, 2014	8.40	8.40	7.80	8.00
5688	NASDAQ	AMSC	Wed, Dec 24, 2014	8.15	8.20	7.95	8.20
5687	NASDAQ	AMSC	Tue, Dec 23, 2014	7.90	8.50	7.90	8.11
5686	NASDAQ	AMSC	Mon, Dec 22, 2014	7.70	8.30	7.60	7.70
5685	NASDAQ	AMSC	Fri, Dec 19, 2014	7.20	7.50	7.20	7.34
5684	NASDAQ	AMSC	Thu, Dec 18, 2014	7.32	7.50	7.20	7.20
5683	NASDAQ	AMSC	Wed, Dec 17, 2014	7.21	7.60	6.98	7.25
5682	NASDAQ	AMSC	Tue, Dec 16, 2014	7.20	7.98	7.02	7.40
5681	NASDAQ	AMSC	Mon, Dec 15, 2014	7.70	7.80	7.20	7.20
5680	NASDAQ	AMSC	Fri, Dec 12, 2014	7.90	8.00	7.70	7.71
5679	NASDAQ	AMSC	Thu, Dec 11, 2014	7.80	8.30	7.70	7.90
5678	NASDAQ	AMSC	Wed, Dec 10, 2014	8.00	8.30	7.80	7.90
5677	NASDAQ	AMSC	Tue, Dec 9, 2014	8.05	8.40	7.70	8.25
5676	NASDAQ	AMSC	Mon, Dec 8, 2014	8.70	9.05	7.97	8.21
5675	NASDAQ	AMSC	Fri, Dec 5, 2014	9.20	9.40	8.50	8.67
5674	NASDAQ	AMSC	Thu, Dec 4, 2014	9.50	9.60	9.00	9.42
5673	NASDAQ	AMSC	Wed, Dec 3, 2014	9.10	9.60	9.00	9.40
5672	NASDAQ	AMSC	Tue, Dec 2, 2014	9.30	9.30	8.90	9.00
5671	NASDAQ	AMSC	Mon, Dec 1, 2014	9.85	10.00	8.40	9.30
5670	NASDAQ	AMSC	Fri, Nov 28, 2014	10.20	10.40	9.85	9.85
5669	NASDAQ	AMSC	Wed, Nov 26, 2014	10.60	10.70	10.20	10.20
5668	NASDAQ	AMSC	Tue, Nov 25, 2014	10.20	10.50	10.10	10.50
5667	NASDAQ	AMSC	Mon, Nov 24, 2014	10.10	10.80	10.10	10.40
5666	NASDAQ	AMSC	Fri, Nov 21, 2014	10.30	10.60	10.00	10.00
5665	NASDAQ	AMSC	Thu, Nov 20, 2014	10.30	10.60	10.20	10.40
5664	NASDAQ	AMSC	Wed, Nov 19, 2014	10.50	10.80	10.20	10.60
5663	NASDAQ	AMSC	Tue, Nov 18, 2014	10.00	10.50	9.85	10.50
5662	NASDAQ	AMSC	Mon, Nov 17, 2014	10.20	10.30	9.70	9.85
5661	NASDAQ	AMSC	Fri, Nov 14, 2014	9.64	10.40	9.64	10.30
5660	NASDAQ	AMSC	Thu, Nov 13, 2014	10.60	11.00	10.10	10.20
5659	NASDAQ	AMSC	Wed, Nov 12, 2014	11.20	11.20	10.70	10.80
5658	NASDAQ	AMSC	Tue, Nov 11, 2014	11.70	11.90	11.20	11.40
5657	NASDAQ	AMSC	Mon, Nov 10, 2014	12.00	12.00	11.50	11.80
5656	NASDAQ	AMSC	Fri, Nov 7, 2014	13.70	14.00	11.60	11.70
5655	NASDAQ	AMSC	Thu, Nov 6, 2014	13.30	14.00	13.20	13.60
5654	NASDAQ	AMSC	Wed, Nov 5, 2014	13.00	13.40	12.30	13.20
5653	NASDAQ	AMSC	Tue, Nov 4, 2014	12.70	12.90	11.90	12.80
5652	NASDAQ	AMSC	Mon, Nov 3, 2014	13.30	13.40	12.50	12.50
5651	NASDAQ	AMSC	Fri, Oct 31, 2014	12.10	13.40	12.00	13.10
5650	NASDAQ	AMSC	Thu, Oct 30, 2014	11.90	12.30	11.85	12.00
5649	NASDAQ	AMSC	Wed, Oct 29, 2014	12.20	12.20	11.60	11.90
5648	NASDAQ	AMSC	Tue, Oct 28, 2014	11.70	12.20	11.70	11.90
5647	NASDAQ	AMSC	Mon, Oct 27, 2014	11.70	12.30	11.70	11.80
5646	NASDAQ	AMSC	Fri, Oct 24, 2014	12.00	12.17	11.70	11.90
5645	NASDAQ	AMSC	Thu, Oct 23, 2014	12.00	12.30	11.90	12.00
5644	NASDAQ	AMSC	Wed, Oct 22, 2014	12.50	12.50	12.00	12.10
5643	NASDAQ	AMSC	Tue, Oct 21, 2014	12.00	12.40	11.90	12.20
5642	NASDAQ	AMSC	Mon, Oct 20, 2014	12.00	12.30	11.90	12.10
5641	NASDAQ	AMSC	Fri, Oct 17, 2014	12.40	12.95	12.10	12.20
5640	NASDAQ	AMSC	Thu, Oct 16, 2014	11.70	12.41	11.70	12.20
5639	NASDAQ	AMSC	Wed, Oct 15, 2014	12.00	12.70	11.54	12.10
5638	NASDAQ	AMSC	Tue, Oct 14, 2014	12.30	12.90	11.70	12.30
5637	NASDAQ	AMSC	Mon, Oct 13, 2014	12.30	12.50	12.20	12.20
5636	NASDAQ	AMSC	Fri, Oct 10, 2014	12.50	12.80	12.50	12.60
5635	NASDAQ	AMSC	Thu, Oct 9, 2014	13.10	13.30	12.60	12.75
5634	NASDAQ	AMSC	Wed, Oct 8, 2014	13.60	13.60	13.00	13.20
5633	NASDAQ	AMSC	Tue, Oct 7, 2014	13.30	13.70	13.20	13.60
5632	NASDAQ	AMSC	Mon, Oct 6, 2014	13.40	13.70	13.30	13.50
5631	NASDAQ	AMSC	Fri, Oct 3, 2014	14.10	14.10	13.40	13.50
5630	NASDAQ	AMSC	Thu, Oct 2, 2014	13.50	14.30	13.20	13.80
5629	NASDAQ	AMSC	Wed, Oct 1, 2014	14.00	14.05	13.50	13.50
5628	NASDAQ	AMSC	Tue, Sep 30, 2014	14.20	14.30	14.00	14.10
5627	NASDAQ	AMSC	Mon, Sep 29, 2014	14.30	14.50	14.00	14.20
5626	NASDAQ	AMSC	Fri, Sep 26, 2014	14.00	14.70	14.00	14.40
5625	NASDAQ	AMSC	Thu, Sep 25, 2014	14.40	14.40	14.00	14.00
5624	NASDAQ	AMSC	Wed, Sep 24, 2014	14.10	14.70	14.10	14.40
5623	NASDAQ	AMSC	Tue, Sep 23, 2014	14.40	14.90	14.00	14.20
5622	NASDAQ	AMSC	Mon, Sep 22, 2014	15.20	15.30	14.60	14.70
5621	NASDAQ	AMSC	Fri, Sep 19, 2014	14.80	15.50	14.31	15.40
5620	NASDAQ	AMSC	Thu, Sep 18, 2014	15.00	15.20	14.80	14.80
5619	NASDAQ	AMSC	Wed, Sep 17, 2014	14.90	15.20	14.70	14.80
5618	NASDAQ	AMSC	Tue, Sep 16, 2014	15.30	15.30	14.70	14.90
5617	NASDAQ	AMSC	Mon, Sep 15, 2014	16.20	16.20	14.80	15.00
5616	NASDAQ	AMSC	Fri, Sep 12, 2014	16.00	16.39	16.00	16.10
5615	NASDAQ	AMSC	Thu, Sep 11, 2014	14.80	16.20	14.80	15.70
5614	NASDAQ	AMSC	Wed, Sep 10, 2014	15.00	15.20	14.80	15.10
5613	NASDAQ	AMSC	Tue, Sep 9, 2014	15.30	15.90	15.10	15.20
5612	NASDAQ	AMSC	Mon, Sep 8, 2014	15.90	16.50	15.50	15.60
5611	NASDAQ	AMSC	Fri, Sep 5, 2014	15.80	16.30	15.70	16.30
5610	NASDAQ	AMSC	Thu, Sep 4, 2014	17.10	17.40	15.40	16.40
5609	NASDAQ	AMSC	Wed, Sep 3, 2014	17.30	18.00	17.20	17.40
5608	NASDAQ	AMSC	Tue, Sep 2, 2014	18.00	18.20	17.40	17.90
5607	NASDAQ	AMSC	Fri, Aug 29, 2014	17.60	18.00	17.60	17.75
5606	NASDAQ	AMSC	Thu, Aug 28, 2014	17.60	17.90	17.50	17.60
5605	NASDAQ	AMSC	Wed, Aug 27, 2014	18.30	18.50	17.78	17.85
5604	NASDAQ	AMSC	Tue, Aug 26, 2014	18.40	18.60	18.20	18.20
5603	NASDAQ	AMSC	Mon, Aug 25, 2014	18.10	18.70	17.90	18.20
5602	NASDAQ	AMSC	Fri, Aug 22, 2014	18.40	18.90	18.10	18.10
5601	NASDAQ	AMSC	Thu, Aug 21, 2014	20.00	20.50	18.30	18.50
5600	NASDAQ	AMSC	Wed, Aug 20, 2014	18.10	18.90	18.10	18.70
5599	NASDAQ	AMSC	Tue, Aug 19, 2014	17.50	18.85	17.50	18.40
5598	NASDAQ	AMSC	Mon, Aug 18, 2014	17.60	17.76	17.20	17.50
5597	NASDAQ	AMSC	Fri, Aug 15, 2014	17.50	17.90	17.00	17.40
5596	NASDAQ	AMSC	Thu, Aug 14, 2014	17.10	17.50	16.90	17.30
5595	NASDAQ	AMSC	Wed, Aug 13, 2014	18.00	18.00	17.10	17.10
5594	NASDAQ	AMSC	Tue, Aug 12, 2014	17.50	17.80	17.20	17.70
5593	NASDAQ	AMSC	Mon, Aug 11, 2014	17.60	18.00	17.30	17.40
5592	NASDAQ	AMSC	Fri, Aug 8, 2014	18.00	18.30	17.30	17.60
5591	NASDAQ	AMSC	Thu, Aug 7, 2014	16.70	18.20	16.70	18.00
5590	NASDAQ	AMSC	Wed, Aug 6, 2014	17.00	17.40	16.60	17.10
5589	NASDAQ	AMSC	Tue, Aug 5, 2014	19.00	19.00	17.10	17.30
5588	NASDAQ	AMSC	Mon, Aug 4, 2014	19.40	20.10	19.00	20.00
5587	NASDAQ	AMSC	Fri, Aug 1, 2014	19.70	20.20	18.80	19.30
5586	NASDAQ	AMSC	Thu, Jul 31, 2014	20.50	20.90	19.80	19.90
5585	NASDAQ	AMSC	Wed, Jul 30, 2014	21.40	21.50	20.00	20.30
5584	NASDAQ	AMSC	Tue, Jul 29, 2014	18.50	21.50	18.50	21.00
5583	NASDAQ	AMSC	Mon, Jul 28, 2014	18.90	19.00	18.50	18.70
5582	NASDAQ	AMSC	Fri, Jul 25, 2014	19.00	19.05	18.50	18.90
5581	NASDAQ	AMSC	Thu, Jul 24, 2014	19.00	19.30	18.70	19.00
5580	NASDAQ	AMSC	Wed, Jul 23, 2014	19.70	20.00	18.90	19.00
5579	NASDAQ	AMSC	Tue, Jul 22, 2014	18.70	20.00	18.51	19.60
5578	NASDAQ	AMSC	Mon, Jul 21, 2014	18.50	19.30	18.30	18.60
5577	NASDAQ	AMSC	Fri, Jul 18, 2014	18.80	19.40	18.60	18.70
5576	NASDAQ	AMSC	Thu, Jul 17, 2014	19.70	20.40	18.60	19.20
5575	NASDAQ	AMSC	Wed, Jul 16, 2014	17.80	21.00	17.50	20.60
5574	NASDAQ	AMSC	Tue, Jul 15, 2014	17.20	17.40	16.00	16.10
5573	NASDAQ	AMSC	Mon, Jul 14, 2014	16.70	17.20	16.40	17.20
5572	NASDAQ	AMSC	Fri, Jul 11, 2014	16.00	16.90	15.50	16.30
5571	NASDAQ	AMSC	Thu, Jul 10, 2014	15.50	16.00	15.30	15.80
5570	NASDAQ	AMSC	Wed, Jul 9, 2014	15.50	16.10	15.50	15.70
5569	NASDAQ	AMSC	Tue, Jul 8, 2014	15.50	16.20	15.20	15.70
5568	NASDAQ	AMSC	Mon, Jul 7, 2014	16.20	16.20	15.60	15.70
5567	NASDAQ	AMSC	Thu, Jul 3, 2014	16.90	17.10	16.00	16.20
5566	NASDAQ	AMSC	Wed, Jul 2, 2014	17.80	17.80	16.60	16.90
5565	NASDAQ	AMSC	Tue, Jul 1, 2014	16.10	17.60	16.00	17.20
5564	NASDAQ	AMSC	Mon, Jun 30, 2014	15.60	16.90	15.30	16.30
5563	NASDAQ	AMSC	Fri, Jun 27, 2014	14.60	15.30	14.40	15.30
5562	NASDAQ	AMSC	Thu, Jun 26, 2014	14.50	14.90	14.40	14.60
5561	NASDAQ	AMSC	Wed, Jun 25, 2014	14.50	14.90	14.30	14.40
5560	NASDAQ	AMSC	Tue, Jun 24, 2014	15.30	15.40	14.50	14.50
5559	NASDAQ	AMSC	Mon, Jun 23, 2014	15.80	15.90	15.20	15.30
5558	NASDAQ	AMSC	Fri, Jun 20, 2014	16.10	16.10	15.40	15.50
5557	NASDAQ	AMSC	Thu, Jun 19, 2014	15.70	16.40	15.70	15.95
5556	NASDAQ	AMSC	Wed, Jun 18, 2014	15.90	15.90	15.10	15.70
5555	NASDAQ	AMSC	Tue, Jun 17, 2014	15.80	16.50	15.10	15.70
5554	NASDAQ	AMSC	Mon, Jun 16, 2014	15.10	16.80	15.10	16.10
5553	NASDAQ	AMSC	Fri, Jun 13, 2014	14.60	15.20	14.00	15.00
5552	NASDAQ	AMSC	Thu, Jun 12, 2014	13.90	14.50	13.70	14.00
5551	NASDAQ	AMSC	Wed, Jun 11, 2014	13.50	14.00	13.50	13.85
5550	NASDAQ	AMSC	Tue, Jun 10, 2014	13.80	13.80	13.50	13.60
5549	NASDAQ	AMSC	Mon, Jun 9, 2014	13.50	14.10	13.50	13.60
5548	NASDAQ	AMSC	Fri, Jun 6, 2014	14.10	14.30	13.50	13.90
5547	NASDAQ	AMSC	Thu, Jun 5, 2014	13.60	14.70	13.50	13.80
5546	NASDAQ	AMSC	Wed, Jun 4, 2014	13.10	13.60	13.00	13.60
5545	NASDAQ	AMSC	Tue, Jun 3, 2014	13.60	13.60	13.10	13.10
5544	NASDAQ	AMSC	Mon, Jun 2, 2014	13.80	14.30	13.40	13.60
5543	NASDAQ	AMSC	Fri, May 30, 2014	14.40	14.40	13.90	14.00
5542	NASDAQ	AMSC	Thu, May 29, 2014	15.00	15.00	14.10	14.30
5541	NASDAQ	AMSC	Wed, May 28, 2014	14.00	14.90	13.80	14.70
5540	NASDAQ	AMSC	Tue, May 27, 2014	14.10	15.00	14.00	14.10
5539	NASDAQ	AMSC	Fri, May 23, 2014	14.20	14.80	14.00	14.50
5538	NASDAQ	AMSC	Thu, May 22, 2014	14.50	15.00	14.10	14.30
5537	NASDAQ	AMSC	Wed, May 21, 2014	15.30	15.30	14.50	14.70
5536	NASDAQ	AMSC	Tue, May 20, 2014	15.10	15.40	14.55	15.00
5535	NASDAQ	AMSC	Mon, May 19, 2014	14.00	15.10	13.60	15.00
5534	NASDAQ	AMSC	Fri, May 16, 2014	13.00	14.05	12.70	14.00
5533	NASDAQ	AMSC	Thu, May 15, 2014	13.00	13.20	12.80	12.90
5532	NASDAQ	AMSC	Wed, May 14, 2014	13.40	13.70	13.00	13.10
5531	NASDAQ	AMSC	Tue, May 13, 2014	14.10	14.10	13.30	13.50
5530	NASDAQ	AMSC	Mon, May 12, 2014	13.20	14.10	12.80	14.10
5529	NASDAQ	AMSC	Fri, May 9, 2014	12.50	13.00	12.50	12.80
5528	NASDAQ	AMSC	Thu, May 8, 2014	12.80	13.00	12.50	12.60
5527	NASDAQ	AMSC	Wed, May 7, 2014	12.80	12.90	12.60	12.80
5526	NASDAQ	AMSC	Tue, May 6, 2014	13.00	13.19	12.60	12.80
5525	NASDAQ	AMSC	Mon, May 5, 2014	13.10	13.40	13.00	13.10
5524	NASDAQ	AMSC	Fri, May 2, 2014	13.70	14.00	13.00	13.10
5523	NASDAQ	AMSC	Thu, May 1, 2014	13.00	13.60	13.00	13.60
5522	NASDAQ	AMSC	Wed, Apr 30, 2014	13.10	13.30	12.80	12.90
5521	NASDAQ	AMSC	Tue, Apr 29, 2014	13.10	13.45	13.10	13.10
5520	NASDAQ	AMSC	Mon, Apr 28, 2014	13.90	13.90	13.00	13.10
5519	NASDAQ	AMSC	Fri, Apr 25, 2014	14.30	14.35	13.80	13.90
5518	NASDAQ	AMSC	Thu, Apr 24, 2014	14.50	14.50	14.10	14.20
5517	NASDAQ	AMSC	Wed, Apr 23, 2014	14.70	14.80	14.30	14.30
5516	NASDAQ	AMSC	Tue, Apr 22, 2014	14.30	14.90	14.30	14.80
5515	NASDAQ	AMSC	Mon, Apr 21, 2014	14.10	14.60	14.00	14.30
5514	NASDAQ	AMSC	Thu, Apr 17, 2014	14.40	14.60	13.90	14.20
5513	NASDAQ	AMSC	Wed, Apr 16, 2014	14.50	14.60	13.50	14.50
5512	NASDAQ	AMSC	Tue, Apr 15, 2014	14.40	14.50	13.60	14.30
5511	NASDAQ	AMSC	Mon, Apr 14, 2014	14.60	14.90	14.10	14.30
5510	NASDAQ	AMSC	Fri, Apr 11, 2014	14.30	14.60	14.10	14.20
5509	NASDAQ	AMSC	Thu, Apr 10, 2014	15.60	15.70	14.30	14.50
5508	NASDAQ	AMSC	Wed, Apr 9, 2014	15.00	15.70	14.55	15.70
5507	NASDAQ	AMSC	Tue, Apr 8, 2014	14.40	15.00	14.20	14.60
5506	NASDAQ	AMSC	Mon, Apr 7, 2014	15.10	15.19	14.20	14.50
5505	NASDAQ	AMSC	Fri, Apr 4, 2014	15.30	16.00	15.00	15.10
5504	NASDAQ	AMSC	Thu, Apr 3, 2014	15.90	16.40	15.30	15.30
5503	NASDAQ	AMSC	Wed, Apr 2, 2014	16.30	16.69	15.60	16.00
5502	NASDAQ	AMSC	Tue, Apr 1, 2014	16.00	16.80	15.90	16.30
5501	NASDAQ	AMSC	Mon, Mar 31, 2014	16.50	16.80	15.80	16.10
5500	NASDAQ	AMSC	Fri, Mar 28, 2014	16.70	17.10	16.10	16.30
5499	NASDAQ	AMSC	Thu, Mar 27, 2014	16.70	17.00	16.10	16.60
5498	NASDAQ	AMSC	Wed, Mar 26, 2014	18.70	18.70	16.50	16.60
5497	NASDAQ	AMSC	Tue, Mar 25, 2014	18.40	19.00	18.10	18.40
5496	NASDAQ	AMSC	Mon, Mar 24, 2014	20.20	20.20	17.80	18.30
5495	NASDAQ	AMSC	Fri, Mar 21, 2014	19.70	20.50	19.50	20.20
5494	NASDAQ	AMSC	Thu, Mar 20, 2014	20.60	20.80	19.20	19.60
5493	NASDAQ	AMSC	Wed, Mar 19, 2014	21.30	23.50	20.60	20.70
5492	NASDAQ	AMSC	Tue, Mar 18, 2014	21.80	21.80	20.80	21.20
5491	NASDAQ	AMSC	Mon, Mar 17, 2014	21.10	22.10	21.10	21.60
5490	NASDAQ	AMSC	Fri, Mar 14, 2014	21.10	21.90	20.60	20.90
5489	NASDAQ	AMSC	Thu, Mar 13, 2014	22.40	23.90	21.20	21.30
5488	NASDAQ	AMSC	Wed, Mar 12, 2014	23.00	23.70	22.00	22.30
5487	NASDAQ	AMSC	Tue, Mar 11, 2014	22.30	26.80	21.80	23.10
5486	NASDAQ	AMSC	Mon, Mar 10, 2014	22.50	23.00	21.50	21.80
5485	NASDAQ	AMSC	Fri, Mar 7, 2014	21.80	22.50	20.50	22.40
5484	NASDAQ	AMSC	Thu, Mar 6, 2014	22.40	23.50	21.10	21.10
5483	NASDAQ	AMSC	Wed, Mar 5, 2014	21.54	23.35	20.30	22.20
5482	NASDAQ	AMSC	Tue, Mar 4, 2014	18.50	20.50	18.50	19.60
5481	NASDAQ	AMSC	Mon, Mar 3, 2014	18.00	18.40	17.90	18.30
5480	NASDAQ	AMSC	Fri, Feb 28, 2014	18.70	19.60	18.20	18.50
5479	NASDAQ	AMSC	Thu, Feb 27, 2014	18.00	18.90	18.00	18.60
5478	NASDAQ	AMSC	Wed, Feb 26, 2014	18.20	18.30	17.90	18.10
5477	NASDAQ	AMSC	Tue, Feb 25, 2014	19.30	19.30	18.10	18.30
5476	NASDAQ	AMSC	Mon, Feb 24, 2014	19.20	19.50	18.90	19.30
5475	NASDAQ	AMSC	Fri, Feb 21, 2014	19.60	19.70	18.90	19.20
5474	NASDAQ	AMSC	Thu, Feb 20, 2014	19.80	20.40	19.00	19.40
5473	NASDAQ	AMSC	Wed, Feb 19, 2014	18.90	22.50	18.50	20.70
5472	NASDAQ	AMSC	Tue, Feb 18, 2014	17.00	18.90	16.90	18.10
5471	NASDAQ	AMSC	Fri, Feb 14, 2014	16.70	16.90	16.60	16.80
5470	NASDAQ	AMSC	Thu, Feb 13, 2014	16.10	17.00	16.00	16.60
5469	NASDAQ	AMSC	Wed, Feb 12, 2014	16.50	17.20	15.94	16.25
5468	NASDAQ	AMSC	Tue, Feb 11, 2014	15.40	16.90	15.40	16.30
5467	NASDAQ	AMSC	Mon, Feb 10, 2014	15.50	16.00	15.00	15.60
5466	NASDAQ	AMSC	Fri, Feb 7, 2014	15.00	16.00	15.00	15.40
5465	NASDAQ	AMSC	Thu, Feb 6, 2014	14.90	16.20	14.60	14.80
5464	NASDAQ	AMSC	Wed, Feb 5, 2014	14.30	14.70	14.30	14.30
5463	NASDAQ	AMSC	Tue, Feb 4, 2014	14.50	15.10	14.30	14.30
5462	NASDAQ	AMSC	Mon, Feb 3, 2014	15.10	15.30	14.50	14.50
5461	NASDAQ	AMSC	Fri, Jan 31, 2014	15.10	15.30	15.00	15.00
5460	NASDAQ	AMSC	Thu, Jan 30, 2014	15.00	15.60	14.70	15.50
5459	NASDAQ	AMSC	Wed, Jan 29, 2014	14.90	15.10	14.70	14.70
5458	NASDAQ	AMSC	Tue, Jan 28, 2014	15.20	15.60	15.00	15.10
5457	NASDAQ	AMSC	Mon, Jan 27, 2014	15.60	15.70	15.20	15.25
5456	NASDAQ	AMSC	Fri, Jan 24, 2014	16.60	16.80	15.60	15.60
5455	NASDAQ	AMSC	Thu, Jan 23, 2014	17.00	17.20	16.60	16.60
5454	NASDAQ	AMSC	Wed, Jan 22, 2014	17.20	17.30	16.90	17.00
5453	NASDAQ	AMSC	Tue, Jan 21, 2014	17.80	17.80	16.80	17.30
5452	NASDAQ	AMSC	Fri, Jan 17, 2014	17.70	18.20	17.10	17.30
5451	NASDAQ	AMSC	Thu, Jan 16, 2014	18.00	18.20	17.00	17.60
5450	NASDAQ	AMSC	Wed, Jan 15, 2014	16.80	18.30	16.70	17.90
5449	NASDAQ	AMSC	Tue, Jan 14, 2014	15.90	16.60	15.80	16.50
5448	NASDAQ	AMSC	Mon, Jan 13, 2014	17.30	17.30	15.60	15.90
5447	NASDAQ	AMSC	Fri, Jan 10, 2014	16.90	17.40	16.70	17.20
5446	NASDAQ	AMSC	Thu, Jan 9, 2014	16.60	17.00	16.55	16.90
5445	NASDAQ	AMSC	Wed, Jan 8, 2014	16.90	17.50	16.30	16.70
5444	NASDAQ	AMSC	Tue, Jan 7, 2014	16.40	17.50	16.20	16.80
5443	NASDAQ	AMSC	Mon, Jan 6, 2014	16.40	16.65	16.00	16.40
5442	NASDAQ	AMSC	Fri, Jan 3, 2014	17.60	17.60	16.20	16.40
5441	NASDAQ	AMSC	Thu, Jan 2, 2014	16.20	17.50	15.80	17.40
5440	NASDAQ	AMSC	Tue, Dec 31, 2013	15.10	16.70	15.00	16.40
5439	NASDAQ	AMSC	Mon, Dec 30, 2013	14.80	15.40	14.80	15.20
5438	NASDAQ	AMSC	Fri, Dec 27, 2013	14.90	15.20	14.60	15.00
5437	NASDAQ	AMSC	Thu, Dec 26, 2013	15.20	15.50	14.80	14.90
5436	NASDAQ	AMSC	Tue, Dec 24, 2013	14.70	15.50	14.40	15.40
5435	NASDAQ	AMSC	Mon, Dec 23, 2013	14.70	14.90	14.30	14.60
5434	NASDAQ	AMSC	Fri, Dec 20, 2013	14.20	14.60	14.10	14.40
5433	NASDAQ	AMSC	Thu, Dec 19, 2013	14.40	14.40	14.00	14.20
5432	NASDAQ	AMSC	Wed, Dec 18, 2013	14.60	14.60	14.20	14.40
5431	NASDAQ	AMSC	Tue, Dec 17, 2013	13.70	15.00	13.70	14.40
5430	NASDAQ	AMSC	Mon, Dec 16, 2013	14.40	14.45	13.90	13.90
5429	NASDAQ	AMSC	Fri, Dec 13, 2013	14.70	14.80	14.20	14.30
5428	NASDAQ	AMSC	Thu, Dec 12, 2013	14.70	14.80	14.20	14.40
5427	NASDAQ	AMSC	Wed, Dec 11, 2013	15.20	15.20	14.50	14.80
5426	NASDAQ	AMSC	Tue, Dec 10, 2013	15.10	15.20	14.70	15.10
5425	NASDAQ	AMSC	Mon, Dec 9, 2013	15.40	15.60	15.00	15.10
5424	NASDAQ	AMSC	Fri, Dec 6, 2013	15.20	15.70	15.20	15.40
5423	NASDAQ	AMSC	Thu, Dec 5, 2013	15.00	15.30	14.90	15.10
5422	NASDAQ	AMSC	Wed, Dec 4, 2013	15.50	15.50	15.00	15.00
5421	NASDAQ	AMSC	Tue, Dec 3, 2013	15.60	15.61	15.30	15.50
5420	NASDAQ	AMSC	Mon, Dec 2, 2013	15.50	16.20	15.40	15.70
5419	NASDAQ	AMSC	Fri, Nov 29, 2013	15.40	16.90	15.30	16.30
5418	NASDAQ	AMSC	Wed, Nov 27, 2013	15.20	15.20	14.60	15.10
5417	NASDAQ	AMSC	Tue, Nov 26, 2013	15.00	15.20	14.75	15.10
5416	NASDAQ	AMSC	Mon, Nov 25, 2013	14.80	15.40	14.50	15.00
5415	NASDAQ	AMSC	Fri, Nov 22, 2013	15.00	15.10	14.20	14.90
5414	NASDAQ	AMSC	Thu, Nov 21, 2013	16.00	16.20	14.90	15.10
5413	NASDAQ	AMSC	Wed, Nov 20, 2013	16.80	17.00	16.00	16.10
5412	NASDAQ	AMSC	Tue, Nov 19, 2013	16.10	17.00	15.95	16.90
5411	NASDAQ	AMSC	Mon, Nov 18, 2013	18.80	19.00	16.10	16.10
5410	NASDAQ	AMSC	Fri, Nov 15, 2013	19.50	19.50	18.70	18.80
5409	NASDAQ	AMSC	Thu, Nov 14, 2013	19.60	19.70	19.30	19.40
5408	NASDAQ	AMSC	Wed, Nov 13, 2013	20.00	20.40	19.20	19.70
5407	NASDAQ	AMSC	Tue, Nov 12, 2013	19.60	20.10	19.60	20.00
5406	NASDAQ	AMSC	Mon, Nov 11, 2013	19.40	20.10	19.30	19.70
5405	NASDAQ	AMSC	Fri, Nov 8, 2013	19.40	19.70	18.90	19.30
5404	NASDAQ	AMSC	Thu, Nov 7, 2013	21.30	21.30	19.10	19.50
5403	NASDAQ	AMSC	Wed, Nov 6, 2013	20.30	21.30	20.00	21.10
5402	NASDAQ	AMSC	Tue, Nov 5, 2013	19.90	20.20	19.60	20.20
5401	NASDAQ	AMSC	Mon, Nov 4, 2013	20.90	21.10	19.90	20.10
5400	NASDAQ	AMSC	Fri, Nov 1, 2013	21.80	22.00	20.80	20.90
5399	NASDAQ	AMSC	Thu, Oct 31, 2013	23.00	23.00	21.80	21.80
5398	NASDAQ	AMSC	Wed, Oct 30, 2013	23.00	23.10	22.70	22.90
5397	NASDAQ	AMSC	Tue, Oct 29, 2013	23.10	23.50	22.80	22.90
5396	NASDAQ	AMSC	Mon, Oct 28, 2013	23.20	23.30	23.00	23.20
5395	NASDAQ	AMSC	Fri, Oct 25, 2013	23.10	23.40	22.88	23.20
5394	NASDAQ	AMSC	Thu, Oct 24, 2013	22.90	23.00	22.70	22.90
5393	NASDAQ	AMSC	Wed, Oct 23, 2013	23.00	23.20	22.70	22.85
5392	NASDAQ	AMSC	Tue, Oct 22, 2013	23.90	24.20	23.00	23.20
5391	NASDAQ	AMSC	Mon, Oct 21, 2013	23.00	24.00	22.90	23.70
5390	NASDAQ	AMSC	Fri, Oct 18, 2013	22.90	23.00	22.60	22.90
5389	NASDAQ	AMSC	Thu, Oct 17, 2013	22.20	22.80	22.20	22.80
5388	NASDAQ	AMSC	Wed, Oct 16, 2013	22.30	22.70	22.00	22.25
5387	NASDAQ	AMSC	Tue, Oct 15, 2013	22.90	22.90	22.00	22.00
5386	NASDAQ	AMSC	Mon, Oct 14, 2013	22.70	22.90	22.40	22.90
5385	NASDAQ	AMSC	Fri, Oct 11, 2013	22.30	22.70	22.20	22.70
5384	NASDAQ	AMSC	Thu, Oct 10, 2013	22.40	22.50	21.90	22.50
5383	NASDAQ	AMSC	Wed, Oct 9, 2013	21.80	22.00	21.50	21.90
5382	NASDAQ	AMSC	Tue, Oct 8, 2013	22.10	22.60	21.70	21.80
5381	NASDAQ	AMSC	Mon, Oct 7, 2013	22.00	22.60	21.70	21.70
5380	NASDAQ	AMSC	Fri, Oct 4, 2013	22.10	22.30	22.00	22.10
5379	NASDAQ	AMSC	Thu, Oct 3, 2013	22.10	22.50	21.90	22.10
5378	NASDAQ	AMSC	Wed, Oct 2, 2013	22.70	22.80	22.20	22.20
5377	NASDAQ	AMSC	Tue, Oct 1, 2013	23.00	23.20	22.50	22.70
5376	NASDAQ	AMSC	Mon, Sep 30, 2013	22.90	23.40	22.80	23.40
5375	NASDAQ	AMSC	Fri, Sep 27, 2013	24.20	24.50	23.10	23.10
5374	NASDAQ	AMSC	Thu, Sep 26, 2013	23.50	24.30	23.50	24.20
5373	NASDAQ	AMSC	Wed, Sep 25, 2013	23.80	24.00	23.10	23.10
5372	NASDAQ	AMSC	Tue, Sep 24, 2013	23.30	24.00	23.30	24.00
5371	NASDAQ	AMSC	Mon, Sep 23, 2013	24.10	24.10	23.10	23.40
5370	NASDAQ	AMSC	Fri, Sep 20, 2013	24.40	24.40	23.70	24.20
5369	NASDAQ	AMSC	Thu, Sep 19, 2013	24.40	24.60	24.00	24.40
5368	NASDAQ	AMSC	Wed, Sep 18, 2013	23.90	24.80	23.80	24.09
5367	NASDAQ	AMSC	Tue, Sep 17, 2013	24.00	24.00	23.50	24.00
5366	NASDAQ	AMSC	Mon, Sep 16, 2013	24.80	24.90	23.60	24.00
5365	NASDAQ	AMSC	Fri, Sep 13, 2013	24.80	25.70	24.70	25.20
5364	NASDAQ	AMSC	Thu, Sep 12, 2013	26.10	26.40	24.60	24.70
5363	NASDAQ	AMSC	Wed, Sep 11, 2013	25.90	26.20	24.60	26.10
5362	NASDAQ	AMSC	Tue, Sep 10, 2013	25.50	26.30	24.60	25.80
5361	NASDAQ	AMSC	Mon, Sep 9, 2013	23.80	25.40	23.50	24.90
5360	NASDAQ	AMSC	Fri, Sep 6, 2013	23.80	24.20	23.30	23.60
5359	NASDAQ	AMSC	Thu, Sep 5, 2013	23.70	24.30	23.60	23.60
5358	NASDAQ	AMSC	Wed, Sep 4, 2013	23.10	24.20	23.10	23.65
5357	NASDAQ	AMSC	Tue, Sep 3, 2013	23.70	23.90	23.00	23.20
5356	NASDAQ	AMSC	Fri, Aug 30, 2013	24.40	24.70	23.70	23.70
5355	NASDAQ	AMSC	Thu, Aug 29, 2013	24.20	24.50	23.80	24.40
5354	NASDAQ	AMSC	Wed, Aug 28, 2013	23.90	24.40	23.60	24.30
5353	NASDAQ	AMSC	Tue, Aug 27, 2013	24.70	24.80	23.50	23.80
5352	NASDAQ	AMSC	Mon, Aug 26, 2013	24.60	25.35	24.35	25.10
5351	NASDAQ	AMSC	Fri, Aug 23, 2013	24.20	24.60	23.80	24.50
5350	NASDAQ	AMSC	Thu, Aug 22, 2013	23.80	25.00	23.80	24.20
5349	NASDAQ	AMSC	Wed, Aug 21, 2013	24.60	24.90	24.00	24.40
5348	NASDAQ	AMSC	Tue, Aug 20, 2013	24.30	24.90	24.00	24.60
5347	NASDAQ	AMSC	Mon, Aug 19, 2013	25.70	25.80	24.20	24.20
5346	NASDAQ	AMSC	Fri, Aug 16, 2013	24.70	25.90	24.60	25.50
5345	NASDAQ	AMSC	Thu, Aug 15, 2013	25.10	25.80	24.00	24.70
5344	NASDAQ	AMSC	Wed, Aug 14, 2013	25.20	25.80	24.90	25.50
5343	NASDAQ	AMSC	Tue, Aug 13, 2013	25.90	26.80	25.00	25.35
5342	NASDAQ	AMSC	Mon, Aug 12, 2013	24.30	25.70	24.30	25.60
5341	NASDAQ	AMSC	Fri, Aug 9, 2013	24.80	24.80	24.05	24.30
5340	NASDAQ	AMSC	Thu, Aug 8, 2013	25.00	25.40	23.90	24.80
5339	NASDAQ	AMSC	Wed, Aug 7, 2013	26.20	26.40	23.70	24.40
5338	NASDAQ	AMSC	Tue, Aug 6, 2013	26.10	26.85	25.10	25.50
5337	NASDAQ	AMSC	Mon, Aug 5, 2013	26.10	26.80	25.70	26.30
5336	NASDAQ	AMSC	Fri, Aug 2, 2013	25.70	26.20	25.10	25.50
5335	NASDAQ	AMSC	Thu, Aug 1, 2013	25.30	25.90	25.10	25.70
5334	NASDAQ	AMSC	Wed, Jul 31, 2013	26.60	26.70	25.10	25.10
5333	NASDAQ	AMSC	Tue, Jul 30, 2013	27.00	27.00	26.10	26.20
5332	NASDAQ	AMSC	Mon, Jul 29, 2013	27.70	27.80	26.80	26.80
5331	NASDAQ	AMSC	Fri, Jul 26, 2013	27.80	28.20	27.30	27.60
5330	NASDAQ	AMSC	Thu, Jul 25, 2013	27.70	28.60	27.30	27.80
5329	NASDAQ	AMSC	Wed, Jul 24, 2013	28.10	28.30	27.10	27.80
5328	NASDAQ	AMSC	Tue, Jul 23, 2013	30.30	30.60	27.50	28.10
5327	NASDAQ	AMSC	Mon, Jul 22, 2013	28.20	30.50	28.00	30.30
5326	NASDAQ	AMSC	Fri, Jul 19, 2013	27.20	28.20	27.00	28.00
5325	NASDAQ	AMSC	Thu, Jul 18, 2013	28.40	28.90	26.76	27.20
5324	NASDAQ	AMSC	Wed, Jul 17, 2013	27.40	28.50	26.80	28.40
5323	NASDAQ	AMSC	Tue, Jul 16, 2013	26.70	27.80	26.10	27.30
5322	NASDAQ	AMSC	Mon, Jul 15, 2013	26.10	27.00	25.60	26.80
5321	NASDAQ	AMSC	Fri, Jul 12, 2013	26.30	26.55	26.00	26.40
5320	NASDAQ	AMSC	Thu, Jul 11, 2013	25.60	26.40	25.30	26.40
5319	NASDAQ	AMSC	Wed, Jul 10, 2013	25.00	25.99	24.50	25.60
5318	NASDAQ	AMSC	Tue, Jul 9, 2013	26.20	26.20	24.50	25.10
5317	NASDAQ	AMSC	Mon, Jul 8, 2013	26.50	27.50	25.75	26.10
5316	NASDAQ	AMSC	Fri, Jul 5, 2013	25.80	26.40	24.80	26.30
5315	NASDAQ	AMSC	Wed, Jul 3, 2013	25.80	25.80	24.60	25.10
5314	NASDAQ	AMSC	Tue, Jul 2, 2013	27.40	27.60	24.80	25.20
5313	NASDAQ	AMSC	Mon, Jul 1, 2013	26.60	28.60	26.00	27.60
5312	NASDAQ	AMSC	Fri, Jun 28, 2013	26.10	27.10	24.20	26.40
5311	NASDAQ	AMSC	Thu, Jun 27, 2013	22.90	25.00	22.50	23.40
5310	NASDAQ	AMSC	Wed, Jun 26, 2013	22.70	23.40	22.60	22.80
5309	NASDAQ	AMSC	Tue, Jun 25, 2013	22.30	22.70	21.70	22.50
5308	NASDAQ	AMSC	Mon, Jun 24, 2013	22.50	22.50	21.50	21.90
5307	NASDAQ	AMSC	Fri, Jun 21, 2013	22.10	22.70	22.00	22.70
5306	NASDAQ	AMSC	Thu, Jun 20, 2013	21.80	22.80	21.70	22.00
5305	NASDAQ	AMSC	Wed, Jun 19, 2013	21.30	23.10	21.20	22.60
5304	NASDAQ	AMSC	Tue, Jun 18, 2013	22.40	22.60	21.20	21.60
5303	NASDAQ	AMSC	Mon, Jun 17, 2013	23.20	24.10	23.00	23.00
5302	NASDAQ	AMSC	Fri, Jun 14, 2013	25.70	25.80	23.50	23.50
5301	NASDAQ	AMSC	Thu, Jun 13, 2013	25.10	26.50	24.70	26.50
5300	NASDAQ	AMSC	Wed, Jun 12, 2013	26.30	26.30	25.00	25.00
5299	NASDAQ	AMSC	Tue, Jun 11, 2013	26.80	26.80	25.50	25.50
5298	NASDAQ	AMSC	Mon, Jun 10, 2013	25.30	26.90	25.20	26.80
5297	NASDAQ	AMSC	Fri, Jun 7, 2013	25.70	26.20	25.05	25.20
5296	NASDAQ	AMSC	Thu, Jun 6, 2013	26.20	26.50	25.60	25.70
5295	NASDAQ	AMSC	Wed, Jun 5, 2013	26.30	27.80	25.60	26.10
5294	NASDAQ	AMSC	Tue, Jun 4, 2013	27.30	28.00	26.30	26.50
5293	NASDAQ	AMSC	Mon, Jun 3, 2013	26.10	27.30	25.50	27.10
5292	NASDAQ	AMSC	Fri, May 31, 2013	28.60	28.80	26.50	26.60
5291	NASDAQ	AMSC	Thu, May 30, 2013	28.50	30.50	27.75	28.80
5290	NASDAQ	AMSC	Wed, May 29, 2013	29.00	29.58	27.25	28.30
5289	NASDAQ	AMSC	Tue, May 28, 2013	27.60	30.20	27.60	29.20
5288	NASDAQ	AMSC	Fri, May 24, 2013	27.00	27.50	26.00	26.80
5287	NASDAQ	AMSC	Thu, May 23, 2013	26.90	27.60	26.10	26.80
5286	NASDAQ	AMSC	Wed, May 22, 2013	30.10	30.50	26.90	27.10
5285	NASDAQ	AMSC	Tue, May 21, 2013	28.00	30.60	27.30	30.40
5284	NASDAQ	AMSC	Mon, May 20, 2013	25.20	27.90	25.00	27.30
5283	NASDAQ	AMSC	Fri, May 17, 2013	24.60	25.50	24.30	25.20
5282	NASDAQ	AMSC	Thu, May 16, 2013	25.10	25.25	24.30	24.30
5281	NASDAQ	AMSC	Wed, May 15, 2013	24.80	25.60	24.70	25.10
5280	NASDAQ	AMSC	Tue, May 14, 2013	24.60	25.20	24.20	24.70
5279	NASDAQ	AMSC	Mon, May 13, 2013	24.00	25.00	24.00	24.70
5278	NASDAQ	AMSC	Fri, May 10, 2013	24.60	24.70	23.90	24.10
5277	NASDAQ	AMSC	Thu, May 9, 2013	25.10	25.47	24.40	24.40
5276	NASDAQ	AMSC	Wed, May 8, 2013	25.30	25.99	25.10	25.20
5275	NASDAQ	AMSC	Tue, May 7, 2013	24.90	25.70	24.20	25.70
5274	NASDAQ	AMSC	Mon, May 6, 2013	24.40	24.80	24.10	24.80
5273	NASDAQ	AMSC	Fri, May 3, 2013	24.00	24.50	23.75	24.20
5272	NASDAQ	AMSC	Thu, May 2, 2013	24.00	24.50	23.30	23.70
5271	NASDAQ	AMSC	Wed, May 1, 2013	25.10	25.10	23.50	23.50
5270	NASDAQ	AMSC	Tue, Apr 30, 2013	24.40	25.35	24.40	25.10
5269	NASDAQ	AMSC	Mon, Apr 29, 2013	25.60	25.70	24.30	24.30
5268	NASDAQ	AMSC	Fri, Apr 26, 2013	25.20	25.50	25.00	25.30
5267	NASDAQ	AMSC	Thu, Apr 25, 2013	25.30	25.90	25.10	25.10
5266	NASDAQ	AMSC	Wed, Apr 24, 2013	24.20	26.20	24.20	25.25
5265	NASDAQ	AMSC	Tue, Apr 23, 2013	24.30	25.00	23.90	24.30
5264	NASDAQ	AMSC	Mon, Apr 22, 2013	25.20	25.51	24.10	24.10
5263	NASDAQ	AMSC	Fri, Apr 19, 2013	23.60	25.35	23.00	25.10
5262	NASDAQ	AMSC	Thu, Apr 18, 2013	24.50	24.50	23.40	23.65
5261	NASDAQ	AMSC	Wed, Apr 17, 2013	23.60	24.60	23.30	24.30
5260	NASDAQ	AMSC	Tue, Apr 16, 2013	25.10	25.10	23.25	23.50
5259	NASDAQ	AMSC	Mon, Apr 15, 2013	26.10	26.30	24.30	24.30
5258	NASDAQ	AMSC	Fri, Apr 12, 2013	26.40	26.70	25.80	26.00
5257	NASDAQ	AMSC	Thu, Apr 11, 2013	25.60	27.00	25.60	26.40
5256	NASDAQ	AMSC	Wed, Apr 10, 2013	25.90	26.80	25.80	25.80
5255	NASDAQ	AMSC	Tue, Apr 9, 2013	25.90	26.80	25.60	25.70
5254	NASDAQ	AMSC	Mon, Apr 8, 2013	25.40	25.90	25.10	25.90
5253	NASDAQ	AMSC	Fri, Apr 5, 2013	26.10	26.40	25.20	25.30
5252	NASDAQ	AMSC	Thu, Apr 4, 2013	26.20	26.20	25.60	26.10
5251	NASDAQ	AMSC	Wed, Apr 3, 2013	27.00	27.20	25.90	25.90
5250	NASDAQ	AMSC	Tue, Apr 2, 2013	27.50	27.60	26.10	26.85
5249	NASDAQ	AMSC	Mon, Apr 1, 2013	26.70	26.80	25.40	25.70
5248	NASDAQ	AMSC	Thu, Mar 28, 2013	26.20	26.90	25.70	26.70
5247	NASDAQ	AMSC	Wed, Mar 27, 2013	26.00	26.55	26.00	26.10
5246	NASDAQ	AMSC	Tue, Mar 26, 2013	28.30	28.30	26.00	26.40
5245	NASDAQ	AMSC	Mon, Mar 25, 2013	27.30	28.00	26.60	27.80
5244	NASDAQ	AMSC	Fri, Mar 22, 2013	28.10	28.20	27.00	27.10
5243	NASDAQ	AMSC	Thu, Mar 21, 2013	27.70	28.30	27.65	28.00
5242	NASDAQ	AMSC	Wed, Mar 20, 2013	28.20	28.30	27.10	27.85
5241	NASDAQ	AMSC	Tue, Mar 19, 2013	28.00	28.60	27.75	27.90
5240	NASDAQ	AMSC	Mon, Mar 18, 2013	27.70	28.60	27.20	28.00
5239	NASDAQ	AMSC	Fri, Mar 15, 2013	27.50	28.20	27.10	27.90
5238	NASDAQ	AMSC	Thu, Mar 14, 2013	28.60	28.70	27.60	27.80
5237	NASDAQ	AMSC	Wed, Mar 13, 2013	28.50	28.80	28.10	28.60
5236	NASDAQ	AMSC	Tue, Mar 12, 2013	27.00	28.80	27.00	28.50
5235	NASDAQ	AMSC	Mon, Mar 11, 2013	27.70	27.90	26.90	27.00
5234	NASDAQ	AMSC	Fri, Mar 8, 2013	27.30	28.10	27.20	27.80
5233	NASDAQ	AMSC	Thu, Mar 7, 2013	27.50	27.75	26.80	27.00
5232	NASDAQ	AMSC	Wed, Mar 6, 2013	27.10	28.00	27.00	27.50
5231	NASDAQ	AMSC	Tue, Mar 5, 2013	27.70	28.00	26.83	27.00
5230	NASDAQ	AMSC	Mon, Mar 4, 2013	28.60	28.70	27.20	27.70
5229	NASDAQ	AMSC	Fri, Mar 1, 2013	29.10	29.60	28.50	28.80
5228	NASDAQ	AMSC	Thu, Feb 28, 2013	29.40	30.50	28.70	28.90
5227	NASDAQ	AMSC	Wed, Feb 27, 2013	28.50	29.70	28.50	29.40
5226	NASDAQ	AMSC	Tue, Feb 26, 2013	29.30	30.00	28.50	28.50
5225	NASDAQ	AMSC	Mon, Feb 25, 2013	32.40	32.40	29.50	29.50
5224	NASDAQ	AMSC	Fri, Feb 22, 2013	31.10	32.00	30.85	31.90
5223	NASDAQ	AMSC	Thu, Feb 21, 2013	30.80	31.40	29.62	30.80
5222	NASDAQ	AMSC	Wed, Feb 20, 2013	31.40	31.90	30.70	30.80
5221	NASDAQ	AMSC	Tue, Feb 19, 2013	31.70	32.90	31.20	31.40
5220	NASDAQ	AMSC	Fri, Feb 15, 2013	32.50	32.50	31.50	31.70
5219	NASDAQ	AMSC	Thu, Feb 14, 2013	32.70	33.40	31.50	31.50
5218	NASDAQ	AMSC	Wed, Feb 13, 2013	31.90	32.80	31.30	32.70
5217	NASDAQ	AMSC	Tue, Feb 12, 2013	30.80	32.50	28.00	31.50
5216	NASDAQ	AMSC	Mon, Feb 11, 2013	27.90	32.00	27.90	31.30
5215	NASDAQ	AMSC	Fri, Feb 8, 2013	28.40	28.90	27.90	28.30
5214	NASDAQ	AMSC	Thu, Feb 7, 2013	29.50	29.60	27.75	28.40
5213	NASDAQ	AMSC	Wed, Feb 6, 2013	27.20	29.20	27.00	29.10
5212	NASDAQ	AMSC	Tue, Feb 5, 2013	26.90	27.30	26.80	27.00
5211	NASDAQ	AMSC	Mon, Feb 4, 2013	26.60	27.70	26.50	26.90
5210	NASDAQ	AMSC	Fri, Feb 1, 2013	26.90	27.40	26.20	26.70
5209	NASDAQ	AMSC	Thu, Jan 31, 2013	26.20	26.50	26.00	26.50
5208	NASDAQ	AMSC	Wed, Jan 30, 2013	27.20	27.20	26.00	26.10
5207	NASDAQ	AMSC	Tue, Jan 29, 2013	27.20	27.50	26.80	27.10
5206	NASDAQ	AMSC	Mon, Jan 28, 2013	27.50	27.50	26.80	27.30
5205	NASDAQ	AMSC	Fri, Jan 25, 2013	27.90	28.05	27.00	27.50
5204	NASDAQ	AMSC	Thu, Jan 24, 2013	27.40	28.30	27.00	28.00
5203	NASDAQ	AMSC	Wed, Jan 23, 2013	27.80	28.10	27.50	27.50
5202	NASDAQ	AMSC	Tue, Jan 22, 2013	27.80	28.50	27.70	27.90
5201	NASDAQ	AMSC	Fri, Jan 18, 2013	28.10	28.10	27.40	27.90
5200	NASDAQ	AMSC	Thu, Jan 17, 2013	28.20	28.90	27.50	28.20
5199	NASDAQ	AMSC	Wed, Jan 16, 2013	28.30	29.40	27.50	27.80
5198	NASDAQ	AMSC	Tue, Jan 15, 2013	26.70	28.40	26.70	28.30
5197	NASDAQ	AMSC	Mon, Jan 14, 2013	27.50	27.99	26.60	27.00
5196	NASDAQ	AMSC	Fri, Jan 11, 2013	28.60	28.80	27.00	27.20
5195	NASDAQ	AMSC	Thu, Jan 10, 2013	29.00	29.00	27.40	27.60
5194	NASDAQ	AMSC	Wed, Jan 9, 2013	28.30	29.30	28.20	29.00
5193	NASDAQ	AMSC	Tue, Jan 8, 2013	28.00	28.50	27.30	28.20
5192	NASDAQ	AMSC	Mon, Jan 7, 2013	28.80	29.00	27.50	27.90
5191	NASDAQ	AMSC	Fri, Jan 4, 2013	29.40	29.50	28.60	29.00
5190	NASDAQ	AMSC	Thu, Jan 3, 2013	28.50	29.60	28.00	29.00
5189	NASDAQ	AMSC	Wed, Jan 2, 2013	27.40	28.80	27.00	28.30
5188	NASDAQ	AMSC	Mon, Dec 31, 2012	25.10	26.50	25.00	26.20
5187	NASDAQ	AMSC	Fri, Dec 28, 2012	25.80	27.30	25.10	25.10
5186	NASDAQ	AMSC	Thu, Dec 27, 2012	26.30	27.00	25.40	26.40
5185	NASDAQ	AMSC	Wed, Dec 26, 2012	27.50	27.70	26.80	27.10
5184	NASDAQ	AMSC	Mon, Dec 24, 2012	28.20	28.30	27.40	27.60
5183	NASDAQ	AMSC	Fri, Dec 21, 2012	29.50	29.50	27.20	28.60
5182	NASDAQ	AMSC	Thu, Dec 20, 2012	29.70	30.00	29.30	29.50
5181	NASDAQ	AMSC	Wed, Dec 19, 2012	31.00	31.10	29.60	29.70
5180	NASDAQ	AMSC	Tue, Dec 18, 2012	30.60	31.00	29.80	30.60
5179	NASDAQ	AMSC	Mon, Dec 17, 2012	29.60	30.90	29.60	30.20
5178	NASDAQ	AMSC	Fri, Dec 14, 2012	29.20	30.80	29.00	29.60
5177	NASDAQ	AMSC	Thu, Dec 13, 2012	29.10	29.40	28.50	29.30
5176	NASDAQ	AMSC	Wed, Dec 12, 2012	28.10	29.30	28.00	29.10
5175	NASDAQ	AMSC	Tue, Dec 11, 2012	28.20	28.90	27.66	28.10
5174	NASDAQ	AMSC	Mon, Dec 10, 2012	27.50	28.20	27.30	28.20
5173	NASDAQ	AMSC	Fri, Dec 7, 2012	27.90	28.10	27.10	27.40
5172	NASDAQ	AMSC	Thu, Dec 6, 2012	26.60	28.10	26.30	27.70
5171	NASDAQ	AMSC	Wed, Dec 5, 2012	27.80	28.50	26.50	26.60
5170	NASDAQ	AMSC	Tue, Dec 4, 2012	26.30	27.30	26.10	26.70
5169	NASDAQ	AMSC	Mon, Dec 3, 2012	28.10	28.40	26.10	26.30
5168	NASDAQ	AMSC	Fri, Nov 30, 2012	26.50	28.10	26.30	27.80
5167	NASDAQ	AMSC	Thu, Nov 29, 2012	25.60	26.40	25.20	26.10
5166	NASDAQ	AMSC	Wed, Nov 28, 2012	24.50	27.70	24.40	25.40
5165	NASDAQ	AMSC	Tue, Nov 27, 2012	26.60	28.60	26.50	27.70
5164	NASDAQ	AMSC	Mon, Nov 26, 2012	25.70	26.30	25.60	26.20
5163	NASDAQ	AMSC	Fri, Nov 23, 2012	24.70	25.70	24.70	25.60
5162	NASDAQ	AMSC	Wed, Nov 21, 2012	24.50	25.00	24.40	25.00
5161	NASDAQ	AMSC	Tue, Nov 20, 2012	24.90	25.10	24.00	24.50
5160	NASDAQ	AMSC	Mon, Nov 19, 2012	26.30	26.50	24.80	24.90
5159	NASDAQ	AMSC	Fri, Nov 16, 2012	25.50	26.70	24.30	26.00
5158	NASDAQ	AMSC	Thu, Nov 15, 2012	29.70	29.70	25.20	25.80
5157	NASDAQ	AMSC	Wed, Nov 14, 2012	27.50	30.00	26.40	26.40
5156	NASDAQ	AMSC	Tue, Nov 13, 2012	29.80	30.10	27.50	27.50
5155	NASDAQ	AMSC	Mon, Nov 12, 2012	31.50	31.50	29.80	29.80
5154	NASDAQ	AMSC	Fri, Nov 9, 2012	33.00	33.50	32.00	32.10
5153	NASDAQ	AMSC	Thu, Nov 8, 2012	35.20	36.00	33.20	33.40
5152	NASDAQ	AMSC	Wed, Nov 7, 2012	40.70	40.70	35.10	35.20
5151	NASDAQ	AMSC	Tue, Nov 6, 2012	36.70	39.00	36.70	38.00
5150	NASDAQ	AMSC	Mon, Nov 5, 2012	36.00	37.80	36.00	36.70
5149	NASDAQ	AMSC	Fri, Nov 2, 2012	36.40	37.00	35.60	35.90
5148	NASDAQ	AMSC	Thu, Nov 1, 2012	36.00	36.70	35.80	36.31
5147	NASDAQ	AMSC	Wed, Oct 31, 2012	36.00	36.70	35.50	35.90
5146	NASDAQ	AMSC	Fri, Oct 26, 2012	36.70	37.70	36.10	36.20
5145	NASDAQ	AMSC	Thu, Oct 25, 2012	37.40	37.90	36.30	36.50
5144	NASDAQ	AMSC	Wed, Oct 24, 2012	37.40	37.50	37.00	37.10
5143	NASDAQ	AMSC	Tue, Oct 23, 2012	37.50	37.90	37.00	37.30
5142	NASDAQ	AMSC	Mon, Oct 22, 2012	37.20	37.90	37.20	37.80
5141	NASDAQ	AMSC	Fri, Oct 19, 2012	38.10	38.35	37.00	37.30
5140	NASDAQ	AMSC	Thu, Oct 18, 2012	39.10	39.40	38.20	38.20
5139	NASDAQ	AMSC	Wed, Oct 17, 2012	39.30	39.60	38.60	39.30
5138	NASDAQ	AMSC	Tue, Oct 16, 2012	39.00	39.30	38.50	39.20
5137	NASDAQ	AMSC	Mon, Oct 15, 2012	38.00	39.00	38.00	38.80
5136	NASDAQ	AMSC	Fri, Oct 12, 2012	38.70	39.00	37.90	38.00
5135	NASDAQ	AMSC	Thu, Oct 11, 2012	38.00	39.20	37.90	38.80
5134	NASDAQ	AMSC	Wed, Oct 10, 2012	37.60	37.90	37.30	37.70
5133	NASDAQ	AMSC	Tue, Oct 9, 2012	38.80	38.90	37.50	37.50
5132	NASDAQ	AMSC	Mon, Oct 8, 2012	39.30	39.90	38.80	38.80
5131	NASDAQ	AMSC	Fri, Oct 5, 2012	39.90	40.40	39.10	39.40
5130	NASDAQ	AMSC	Thu, Oct 4, 2012	39.10	39.90	38.80	39.50
5129	NASDAQ	AMSC	Wed, Oct 3, 2012	40.80	40.90	39.50	39.50
5128	NASDAQ	AMSC	Tue, Oct 2, 2012	40.80	41.50	39.70	40.80
5127	NASDAQ	AMSC	Mon, Oct 1, 2012	41.70	41.80	40.20	41.00
5126	NASDAQ	AMSC	Fri, Sep 28, 2012	41.90	42.20	41.00	41.50
5125	NASDAQ	AMSC	Thu, Sep 27, 2012	41.30	42.30	40.60	42.30
5124	NASDAQ	AMSC	Wed, Sep 26, 2012	38.90	42.00	38.80	41.20
5123	NASDAQ	AMSC	Tue, Sep 25, 2012	39.60	39.90	38.30	38.70
5122	NASDAQ	AMSC	Mon, Sep 24, 2012	40.20	40.20	37.90	39.40
5121	NASDAQ	AMSC	Fri, Sep 21, 2012	39.80	40.40	38.40	40.30
5120	NASDAQ	AMSC	Thu, Sep 20, 2012	39.00	39.30	38.50	39.10
5119	NASDAQ	AMSC	Wed, Sep 19, 2012	38.70	39.50	38.20	39.30
5118	NASDAQ	AMSC	Tue, Sep 18, 2012	38.50	39.00	38.10	38.70
5117	NASDAQ	AMSC	Mon, Sep 17, 2012	39.30	39.60	38.50	38.70
5116	NASDAQ	AMSC	Fri, Sep 14, 2012	39.40	39.90	39.00	39.60
5115	NASDAQ	AMSC	Thu, Sep 13, 2012	38.60	39.50	38.00	39.10
5114	NASDAQ	AMSC	Wed, Sep 12, 2012	38.60	39.40	38.50	38.60
5113	NASDAQ	AMSC	Tue, Sep 11, 2012	37.90	39.40	37.90	38.60
5112	NASDAQ	AMSC	Mon, Sep 10, 2012	38.00	39.60	38.00	38.10
5111	NASDAQ	AMSC	Fri, Sep 7, 2012	38.10	38.20	37.60	37.80
5110	NASDAQ	AMSC	Thu, Sep 6, 2012	37.30	38.20	37.00	37.20
5109	NASDAQ	AMSC	Wed, Sep 5, 2012	37.50	37.90	36.40	37.10
5108	NASDAQ	AMSC	Tue, Sep 4, 2012	37.50	37.60	36.40	37.40
5107	NASDAQ	AMSC	Fri, Aug 31, 2012	37.70	38.90	37.30	37.50
5106	NASDAQ	AMSC	Thu, Aug 30, 2012	38.50	38.50	37.50	37.60
5105	NASDAQ	AMSC	Wed, Aug 29, 2012	37.70	38.80	37.70	38.80
5104	NASDAQ	AMSC	Tue, Aug 28, 2012	39.40	39.50	37.50	37.70
5103	NASDAQ	AMSC	Mon, Aug 27, 2012	40.20	40.20	39.00	39.60
5102	NASDAQ	AMSC	Fri, Aug 24, 2012	39.70	40.40	39.10	40.20
5101	NASDAQ	AMSC	Thu, Aug 23, 2012	40.40	40.50	39.55	39.80
5100	NASDAQ	AMSC	Wed, Aug 22, 2012	40.60	41.30	39.80	40.30
5099	NASDAQ	AMSC	Tue, Aug 21, 2012	40.50	42.10	40.10	40.50
5098	NASDAQ	AMSC	Mon, Aug 20, 2012	40.70	40.70	40.00	40.50
5097	NASDAQ	AMSC	Fri, Aug 17, 2012	41.30	42.10	40.60	40.70
5096	NASDAQ	AMSC	Thu, Aug 16, 2012	40.70	41.70	40.20	41.50
5095	NASDAQ	AMSC	Wed, Aug 15, 2012	40.00	41.00	40.00	40.60
5094	NASDAQ	AMSC	Tue, Aug 14, 2012	41.50	42.40	40.00	40.30
5093	NASDAQ	AMSC	Mon, Aug 13, 2012	41.70	41.90	40.30	41.40
5092	NASDAQ	AMSC	Fri, Aug 10, 2012	40.60	42.35	40.00	41.90
5091	NASDAQ	AMSC	Thu, Aug 9, 2012	41.10	41.20	39.60	40.60
5090	NASDAQ	AMSC	Wed, Aug 8, 2012	42.20	42.70	40.90	41.10
5089	NASDAQ	AMSC	Tue, Aug 7, 2012	40.20	44.20	39.90	42.30
5088	NASDAQ	AMSC	Mon, Aug 6, 2012	40.10	41.10	39.00	40.00
5087	NASDAQ	AMSC	Fri, Aug 3, 2012	43.00	43.10	39.60	40.00
5086	NASDAQ	AMSC	Thu, Aug 2, 2012	36.60	43.40	36.10	43.00
5085	NASDAQ	AMSC	Wed, Aug 1, 2012	37.40	37.40	35.30	35.40
5084	NASDAQ	AMSC	Tue, Jul 31, 2012	36.70	37.90	36.50	37.10
5083	NASDAQ	AMSC	Mon, Jul 30, 2012	37.80	38.90	36.30	36.80
5082	NASDAQ	AMSC	Fri, Jul 27, 2012	37.50	37.90	36.50	37.70
5081	NASDAQ	AMSC	Thu, Jul 26, 2012	38.20	38.50	36.30	37.00
5080	NASDAQ	AMSC	Wed, Jul 25, 2012	40.30	40.70	37.60	37.90
5079	NASDAQ	AMSC	Tue, Jul 24, 2012	42.30	42.30	39.60	40.00
5078	NASDAQ	AMSC	Mon, Jul 23, 2012	42.90	43.10	41.90	42.10
5077	NASDAQ	AMSC	Fri, Jul 20, 2012	43.00	44.20	42.20	43.90
5076	NASDAQ	AMSC	Thu, Jul 19, 2012	44.80	45.30	43.30	43.30
5075	NASDAQ	AMSC	Wed, Jul 18, 2012	43.50	45.30	43.30	44.80
5074	NASDAQ	AMSC	Tue, Jul 17, 2012	44.50	44.50	43.00	43.90
5073	NASDAQ	AMSC	Mon, Jul 16, 2012	46.00	46.00	43.40	44.20
5072	NASDAQ	AMSC	Fri, Jul 13, 2012	48.00	48.80	46.10	46.20
5071	NASDAQ	AMSC	Thu, Jul 12, 2012	46.00	48.20	46.00	47.80
5070	NASDAQ	AMSC	Wed, Jul 11, 2012	46.60	47.50	46.30	46.30
5069	NASDAQ	AMSC	Tue, Jul 10, 2012	47.50	47.50	46.30	46.60
5068	NASDAQ	AMSC	Mon, Jul 9, 2012	47.90	48.00	46.10	47.30
5067	NASDAQ	AMSC	Fri, Jul 6, 2012	48.10	48.79	47.50	47.90
5066	NASDAQ	AMSC	Thu, Jul 5, 2012	47.10	49.60	46.00	48.80
5065	NASDAQ	AMSC	Tue, Jul 3, 2012	46.50	47.35	46.30	47.30
5064	NASDAQ	AMSC	Mon, Jul 2, 2012	46.70	46.90	45.70	46.80
5063	NASDAQ	AMSC	Fri, Jun 29, 2012	45.50	48.80	45.30	47.00
5062	NASDAQ	AMSC	Thu, Jun 28, 2012	43.10	46.60	43.10	44.60
5061	NASDAQ	AMSC	Wed, Jun 27, 2012	46.30	47.40	43.50	43.90
5060	NASDAQ	AMSC	Tue, Jun 26, 2012	46.70	48.20	45.23	46.70
5059	NASDAQ	AMSC	Mon, Jun 25, 2012	44.50	47.70	43.50	46.80
5058	NASDAQ	AMSC	Fri, Jun 22, 2012	41.90	44.90	41.01	44.80
5057	NASDAQ	AMSC	Thu, Jun 21, 2012	40.90	43.40	40.70	41.80
5056	NASDAQ	AMSC	Wed, Jun 20, 2012	39.30	41.30	38.90	41.10
5055	NASDAQ	AMSC	Tue, Jun 19, 2012	39.30	39.50	38.80	39.40
5054	NASDAQ	AMSC	Mon, Jun 18, 2012	38.20	39.40	37.50	39.10
5053	NASDAQ	AMSC	Fri, Jun 15, 2012	37.60	38.90	37.20	38.80
5052	NASDAQ	AMSC	Thu, Jun 14, 2012	38.60	39.40	37.30	37.40
5051	NASDAQ	AMSC	Wed, Jun 13, 2012	39.10	39.40	37.80	39.10
5050	NASDAQ	AMSC	Tue, Jun 12, 2012	39.00	39.40	37.40	39.30
5049	NASDAQ	AMSC	Mon, Jun 11, 2012	39.10	39.10	37.40	37.40
5048	NASDAQ	AMSC	Fri, Jun 8, 2012	38.00	39.70	38.00	39.30
5047	NASDAQ	AMSC	Thu, Jun 7, 2012	39.20	40.80	39.00	40.00
5046	NASDAQ	AMSC	Wed, Jun 6, 2012	40.90	41.30	39.20	40.50
5045	NASDAQ	AMSC	Tue, Jun 5, 2012	38.90	40.70	38.50	40.30
5044	NASDAQ	AMSC	Mon, Jun 4, 2012	38.90	39.70	37.50	39.40
5043	NASDAQ	AMSC	Fri, Jun 1, 2012	38.10	39.20	37.60	38.40
5042	NASDAQ	AMSC	Thu, May 31, 2012	38.70	39.60	37.90	39.40
5041	NASDAQ	AMSC	Wed, May 30, 2012	37.30	39.70	37.10	38.80
5040	NASDAQ	AMSC	Tue, May 29, 2012	37.50	39.30	37.30	37.90
5039	NASDAQ	AMSC	Fri, May 25, 2012	38.00	38.30	37.20	37.30
5038	NASDAQ	AMSC	Thu, May 24, 2012	40.50	40.50	37.00	38.10
5037	NASDAQ	AMSC	Wed, May 23, 2012	37.90	39.90	36.49	39.90
5036	NASDAQ	AMSC	Tue, May 22, 2012	37.00	37.50	35.10	35.40
5035	NASDAQ	AMSC	Mon, May 21, 2012	35.60	37.00	34.70	36.30
5034	NASDAQ	AMSC	Fri, May 18, 2012	36.00	36.80	35.10	35.60
5033	NASDAQ	AMSC	Thu, May 17, 2012	38.40	38.80	35.80	36.10
5032	NASDAQ	AMSC	Wed, May 16, 2012	38.90	39.80	38.30	38.40
5031	NASDAQ	AMSC	Tue, May 15, 2012	39.10	39.19	38.50	38.80
5030	NASDAQ	AMSC	Mon, May 14, 2012	39.40	40.20	38.80	39.10
5029	NASDAQ	AMSC	Fri, May 11, 2012	39.70	40.40	39.10	40.30
5028	NASDAQ	AMSC	Thu, May 10, 2012	41.20	41.70	39.90	39.90
5027	NASDAQ	AMSC	Wed, May 9, 2012	40.20	41.40	39.40	40.90
5026	NASDAQ	AMSC	Tue, May 8, 2012	40.70	41.10	40.00	41.00
5025	NASDAQ	AMSC	Mon, May 7, 2012	40.70	41.70	40.40	41.10
5024	NASDAQ	AMSC	Fri, May 4, 2012	41.00	41.80	40.60	40.90
5023	NASDAQ	AMSC	Thu, May 3, 2012	41.10	41.50	40.40	41.20
5022	NASDAQ	AMSC	Wed, May 2, 2012	41.40	42.10	40.45	41.30
5021	NASDAQ	AMSC	Tue, May 1, 2012	41.10	43.50	40.40	42.10
5020	NASDAQ	AMSC	Mon, Apr 30, 2012	42.90	43.00	41.20	41.30
5019	NASDAQ	AMSC	Fri, Apr 27, 2012	42.40	43.10	41.40	43.00
5018	NASDAQ	AMSC	Thu, Apr 26, 2012	41.30	42.30	40.10	42.20
5017	NASDAQ	AMSC	Wed, Apr 25, 2012	41.10	41.70	39.80	41.60
5016	NASDAQ	AMSC	Tue, Apr 24, 2012	39.00	40.70	38.70	40.70
5015	NASDAQ	AMSC	Mon, Apr 23, 2012	40.00	40.10	38.60	39.00
5014	NASDAQ	AMSC	Fri, Apr 20, 2012	42.00	42.00	40.00	40.00
5013	NASDAQ	AMSC	Thu, Apr 19, 2012	40.80	41.80	40.40	41.00
5012	NASDAQ	AMSC	Wed, Apr 18, 2012	40.70	40.90	40.00	40.00
5011	NASDAQ	AMSC	Tue, Apr 17, 2012	41.50	42.85	40.90	41.20
5010	NASDAQ	AMSC	Mon, Apr 16, 2012	41.90	41.90	40.00	41.20
5009	NASDAQ	AMSC	Fri, Apr 13, 2012	42.40	42.50	40.40	41.90
5008	NASDAQ	AMSC	Thu, Apr 12, 2012	42.70	43.30	41.02	42.40
5007	NASDAQ	AMSC	Wed, Apr 11, 2012	40.00	43.40	39.90	42.20
5006	NASDAQ	AMSC	Tue, Apr 10, 2012	36.50	37.50	36.10	37.10
5005	NASDAQ	AMSC	Mon, Apr 9, 2012	37.60	37.90	35.70	36.00
5004	NASDAQ	AMSC	Thu, Apr 5, 2012	39.70	39.70	37.10	38.00
5003	NASDAQ	AMSC	Wed, Apr 4, 2012	39.70	40.90	39.50	39.70
5002	NASDAQ	AMSC	Tue, Apr 3, 2012	42.70	42.70	39.50	40.00
5001	NASDAQ	AMSC	Mon, Apr 2, 2012	41.20	42.20	40.80	42.10
5000	NASDAQ	AMSC	Fri, Mar 30, 2012	41.10	43.00	40.90	41.20
4999	NASDAQ	AMSC	Thu, Mar 29, 2012	41.60	42.40	40.30	41.00
4998	NASDAQ	AMSC	Wed, Mar 28, 2012	41.20	42.30	40.80	42.10
4997	NASDAQ	AMSC	Tue, Mar 27, 2012	42.30	42.70	41.10	41.30
4996	NASDAQ	AMSC	Mon, Mar 26, 2012	41.80	43.10	41.70	42.10
4995	NASDAQ	AMSC	Fri, Mar 23, 2012	41.50	41.50	40.00	40.90
4994	NASDAQ	AMSC	Thu, Mar 22, 2012	42.60	42.60	40.60	41.50
4993	NASDAQ	AMSC	Wed, Mar 21, 2012	41.70	42.00	41.10	41.70
4992	NASDAQ	AMSC	Tue, Mar 20, 2012	41.20	41.80	40.40	40.80
4991	NASDAQ	AMSC	Mon, Mar 19, 2012	43.40	43.50	40.80	41.70
4990	NASDAQ	AMSC	Fri, Mar 16, 2012	43.70	44.80	42.50	43.60
4989	NASDAQ	AMSC	Thu, Mar 15, 2012	40.70	42.80	40.50	42.50
4988	NASDAQ	AMSC	Wed, Mar 14, 2012	41.50	41.50	39.70	40.50
4987	NASDAQ	AMSC	Tue, Mar 13, 2012	38.80	41.60	38.80	41.60
4986	NASDAQ	AMSC	Mon, Mar 12, 2012	37.90	38.50	37.80	38.50
4985	NASDAQ	AMSC	Fri, Mar 9, 2012	38.60	39.00	37.50	37.70
4984	NASDAQ	AMSC	Thu, Mar 8, 2012	36.30	38.70	35.90	38.30
4983	NASDAQ	AMSC	Wed, Mar 7, 2012	37.00	38.00	35.30	36.00
4982	NASDAQ	AMSC	Tue, Mar 6, 2012	37.00	37.30	36.10	36.70
4981	NASDAQ	AMSC	Mon, Mar 5, 2012	39.80	40.20	37.10	37.40
4980	NASDAQ	AMSC	Fri, Mar 2, 2012	41.50	41.80	39.80	39.80
4979	NASDAQ	AMSC	Thu, Mar 1, 2012	45.30	45.30	41.50	41.60
4978	NASDAQ	AMSC	Wed, Feb 29, 2012	43.20	46.20	43.00	44.80
4977	NASDAQ	AMSC	Tue, Feb 28, 2012	43.90	44.80	43.00	43.20
4976	NASDAQ	AMSC	Mon, Feb 27, 2012	44.80	44.80	43.20	44.00
4975	NASDAQ	AMSC	Fri, Feb 24, 2012	45.40	46.00	44.40	45.20
4974	NASDAQ	AMSC	Thu, Feb 23, 2012	46.50	46.60	44.90	45.20
4973	NASDAQ	AMSC	Wed, Feb 22, 2012	47.00	48.10	46.70	46.70
4972	NASDAQ	AMSC	Tue, Feb 21, 2012	48.70	48.80	46.50	47.10
4971	NASDAQ	AMSC	Fri, Feb 17, 2012	47.40	48.50	46.30	47.00
4970	NASDAQ	AMSC	Thu, Feb 16, 2012	46.30	47.70	45.70	47.30
4969	NASDAQ	AMSC	Wed, Feb 15, 2012	47.50	49.50	45.80	46.10
4968	NASDAQ	AMSC	Tue, Feb 14, 2012	47.40	47.50	45.10	47.20
4967	NASDAQ	AMSC	Mon, Feb 13, 2012	51.60	51.90	45.50	47.40
4966	NASDAQ	AMSC	Fri, Feb 10, 2012	53.70	55.90	50.60	51.10
4965	NASDAQ	AMSC	Thu, Feb 9, 2012	58.80	58.80	53.20	55.70
4964	NASDAQ	AMSC	Wed, Feb 8, 2012	54.50	60.50	53.50	60.30
4963	NASDAQ	AMSC	Tue, Feb 7, 2012	54.40	55.30	53.00	54.35
4962	NASDAQ	AMSC	Mon, Feb 6, 2012	55.00	56.70	54.00	54.80
4961	NASDAQ	AMSC	Fri, Feb 3, 2012	52.90	59.90	52.31	57.80
4960	NASDAQ	AMSC	Thu, Feb 2, 2012	51.60	53.00	51.10	51.60
4959	NASDAQ	AMSC	Wed, Feb 1, 2012	51.40	53.50	50.70	51.20
4958	NASDAQ	AMSC	Tue, Jan 31, 2012	53.50	53.90	50.30	50.50
4957	NASDAQ	AMSC	Mon, Jan 30, 2012	53.50	54.50	52.50	53.20
4956	NASDAQ	AMSC	Fri, Jan 27, 2012	51.50	54.90	51.40	53.80
4955	NASDAQ	AMSC	Thu, Jan 26, 2012	52.60	53.20	50.90	51.50
4954	NASDAQ	AMSC	Wed, Jan 25, 2012	51.10	53.00	51.00	51.90
4953	NASDAQ	AMSC	Tue, Jan 24, 2012	53.10	53.41	50.40	51.00
4952	NASDAQ	AMSC	Mon, Jan 23, 2012	56.40	57.50	53.20	53.80
4951	NASDAQ	AMSC	Fri, Jan 20, 2012	52.10	57.00	51.80	56.40
4950	NASDAQ	AMSC	Thu, Jan 19, 2012	55.10	58.60	52.00	52.50
4949	NASDAQ	AMSC	Wed, Jan 18, 2012	43.70	55.50	43.50	55.50
4948	NASDAQ	AMSC	Tue, Jan 17, 2012	44.20	46.00	43.50	43.50
4947	NASDAQ	AMSC	Fri, Jan 13, 2012	44.10	45.40	42.90	43.50
4946	NASDAQ	AMSC	Thu, Jan 12, 2012	42.40	44.70	40.60	44.60
4945	NASDAQ	AMSC	Wed, Jan 11, 2012	39.30	42.40	39.20	42.20
4944	NASDAQ	AMSC	Tue, Jan 10, 2012	38.20	40.80	38.00	39.40
4943	NASDAQ	AMSC	Mon, Jan 9, 2012	37.30	38.70	37.10	37.50
4942	NASDAQ	AMSC	Fri, Jan 6, 2012	38.00	38.30	37.00	37.10
4941	NASDAQ	AMSC	Thu, Jan 5, 2012	37.80	39.30	36.99	38.10
4940	NASDAQ	AMSC	Wed, Jan 4, 2012	37.00	38.80	36.70	38.00
4939	NASDAQ	AMSC	Tue, Jan 3, 2012	38.00	38.10	37.10	37.10
4938	NASDAQ	AMSC	Fri, Dec 30, 2011	37.30	37.60	36.50	36.90
4937	NASDAQ	AMSC	Thu, Dec 29, 2011	37.50	38.00	36.40	37.60
4936	NASDAQ	AMSC	Wed, Dec 28, 2011	39.10	39.40	37.00	37.20
4935	NASDAQ	AMSC	Tue, Dec 27, 2011	40.00	40.20	39.00	39.30
4934	NASDAQ	AMSC	Fri, Dec 23, 2011	41.20	41.20	39.50	40.40
4933	NASDAQ	AMSC	Thu, Dec 22, 2011	39.80	41.20	39.30	41.20
4932	NASDAQ	AMSC	Wed, Dec 21, 2011	40.00	41.40	37.90	39.70
4931	NASDAQ	AMSC	Tue, Dec 20, 2011	35.80	40.50	35.50	40.50
4930	NASDAQ	AMSC	Mon, Dec 19, 2011	37.30	37.30	34.90	35.00
4929	NASDAQ	AMSC	Fri, Dec 16, 2011	37.80	38.00	36.50	36.90
4928	NASDAQ	AMSC	Thu, Dec 15, 2011	38.20	38.60	37.30	37.50
4927	NASDAQ	AMSC	Wed, Dec 14, 2011	38.70	40.00	37.20	37.60
4926	NASDAQ	AMSC	Tue, Dec 13, 2011	40.40	40.72	38.70	39.00
4925	NASDAQ	AMSC	Mon, Dec 12, 2011	40.10	41.10	39.80	40.30
4924	NASDAQ	AMSC	Fri, Dec 9, 2011	39.80	41.00	39.50	40.70
4923	NASDAQ	AMSC	Thu, Dec 8, 2011	41.20	41.30	39.30	39.50
4922	NASDAQ	AMSC	Wed, Dec 7, 2011	40.60	41.50	40.15	41.20
4921	NASDAQ	AMSC	Tue, Dec 6, 2011	41.70	43.00	40.70	40.90
4920	NASDAQ	AMSC	Mon, Dec 5, 2011	42.10	42.20	41.10	41.60
4919	NASDAQ	AMSC	Fri, Dec 2, 2011	42.20	42.30	40.30	41.10
4918	NASDAQ	AMSC	Thu, Dec 1, 2011	39.70	42.50	39.30	41.50
4917	NASDAQ	AMSC	Wed, Nov 30, 2011	40.10	40.40	38.43	39.70
4916	NASDAQ	AMSC	Tue, Nov 29, 2011	39.80	40.70	38.30	38.40
4915	NASDAQ	AMSC	Mon, Nov 28, 2011	40.00	40.40	39.00	40.00
4914	NASDAQ	AMSC	Fri, Nov 25, 2011	40.00	40.60	38.40	38.40
4913	NASDAQ	AMSC	Wed, Nov 23, 2011	40.00	41.00	38.75	40.30
4912	NASDAQ	AMSC	Tue, Nov 22, 2011	40.20	41.30	40.00	40.20
4911	NASDAQ	AMSC	Mon, Nov 21, 2011	42.50	42.50	40.00	40.30
4910	NASDAQ	AMSC	Fri, Nov 18, 2011	43.00	47.40	43.00	43.90
4909	NASDAQ	AMSC	Thu, Nov 17, 2011	40.40	43.70	40.20	42.90
4908	NASDAQ	AMSC	Wed, Nov 16, 2011	40.10	42.00	40.10	40.40
4907	NASDAQ	AMSC	Tue, Nov 15, 2011	40.40	41.10	39.60	40.60
4906	NASDAQ	AMSC	Mon, Nov 14, 2011	40.80	41.30	40.00	40.60
4905	NASDAQ	AMSC	Fri, Nov 11, 2011	41.30	42.90	40.80	41.10
4904	NASDAQ	AMSC	Thu, Nov 10, 2011	44.90	45.50	40.30	40.90
4903	NASDAQ	AMSC	Wed, Nov 9, 2011	38.70	47.50	38.30	45.30
4902	NASDAQ	AMSC	Tue, Nov 8, 2011	40.50	41.10	38.30	40.70
4901	NASDAQ	AMSC	Mon, Nov 7, 2011	40.40	40.80	39.00	40.00
4900	NASDAQ	AMSC	Fri, Nov 4, 2011	40.80	41.90	40.20	40.90
4899	NASDAQ	AMSC	Thu, Nov 3, 2011	40.80	41.50	39.90	41.50
4898	NASDAQ	AMSC	Wed, Nov 2, 2011	40.60	42.40	39.90	40.20
4897	NASDAQ	AMSC	Tue, Nov 1, 2011	41.00	42.10	39.30	39.50
4896	NASDAQ	AMSC	Mon, Oct 31, 2011	43.50	44.90	42.70	43.60
4895	NASDAQ	AMSC	Fri, Oct 28, 2011	43.40	47.90	42.80	44.50
4894	NASDAQ	AMSC	Thu, Oct 27, 2011	42.00	44.50	40.40	43.70
4893	NASDAQ	AMSC	Wed, Oct 26, 2011	40.60	41.20	38.80	40.00
4892	NASDAQ	AMSC	Tue, Oct 25, 2011	41.70	42.20	39.50	39.60
4891	NASDAQ	AMSC	Mon, Oct 24, 2011	39.00	42.30	39.00	42.20
4890	NASDAQ	AMSC	Fri, Oct 21, 2011	41.80	42.00	38.30	38.50
4889	NASDAQ	AMSC	Thu, Oct 20, 2011	40.20	41.40	38.20	41.00
4888	NASDAQ	AMSC	Wed, Oct 19, 2011	42.60	42.90	40.00	40.20
4887	NASDAQ	AMSC	Tue, Oct 18, 2011	40.80	42.90	39.80	42.60
4886	NASDAQ	AMSC	Mon, Oct 17, 2011	43.50	43.80	40.20	40.40
4885	NASDAQ	AMSC	Fri, Oct 14, 2011	43.30	44.30	41.00	42.80
4884	NASDAQ	AMSC	Thu, Oct 13, 2011	40.10	42.40	39.10	42.20
4883	NASDAQ	AMSC	Wed, Oct 12, 2011	42.60	43.70	38.60	40.20
4882	NASDAQ	AMSC	Tue, Oct 11, 2011	41.50	42.70	39.50	41.90
4881	NASDAQ	AMSC	Mon, Oct 10, 2011	40.00	41.60	39.30	41.50
4880	NASDAQ	AMSC	Fri, Oct 7, 2011	41.20	41.50	37.60	38.50
4879	NASDAQ	AMSC	Thu, Oct 6, 2011	38.90	42.00	38.50	41.30
4878	NASDAQ	AMSC	Wed, Oct 5, 2011	37.10	39.70	34.60	38.80
4877	NASDAQ	AMSC	Tue, Oct 4, 2011	35.00	36.90	32.10	36.70
4876	NASDAQ	AMSC	Mon, Oct 3, 2011	38.90	39.00	34.10	34.20
4875	NASDAQ	AMSC	Fri, Sep 30, 2011	43.60	43.90	38.70	39.30
4874	NASDAQ	AMSC	Thu, Sep 29, 2011	39.30	47.00	38.50	44.60
4873	NASDAQ	AMSC	Wed, Sep 28, 2011	43.00	43.80	38.60	38.80
4872	NASDAQ	AMSC	Tue, Sep 27, 2011	47.90	49.20	42.20	42.70
4871	NASDAQ	AMSC	Mon, Sep 26, 2011	51.00	51.60	44.50	46.60
4870	NASDAQ	AMSC	Fri, Sep 23, 2011	49.30	54.40	48.50	50.80
4869	NASDAQ	AMSC	Thu, Sep 22, 2011	46.10	47.20	43.40	44.70
4868	NASDAQ	AMSC	Wed, Sep 21, 2011	50.20	50.80	47.40	47.50
4867	NASDAQ	AMSC	Tue, Sep 20, 2011	53.10	53.32	50.10	50.20
4866	NASDAQ	AMSC	Mon, Sep 19, 2011	52.60	54.90	51.30	52.30
4865	NASDAQ	AMSC	Fri, Sep 16, 2011	59.50	59.80	53.00	53.30
4864	NASDAQ	AMSC	Thu, Sep 15, 2011	71.60	71.60	59.30	60.10
4863	NASDAQ	AMSC	Wed, Sep 14, 2011	67.80	71.60	66.60	70.80
4862	NASDAQ	AMSC	Tue, Sep 13, 2011	62.20	66.80	62.00	66.10
4861	NASDAQ	AMSC	Mon, Sep 12, 2011	59.40	61.80	58.81	61.70
4860	NASDAQ	AMSC	Fri, Sep 9, 2011	60.90	61.80	58.40	60.40
4859	NASDAQ	AMSC	Thu, Sep 8, 2011	64.40	64.80	61.90	62.00
4858	NASDAQ	AMSC	Wed, Sep 7, 2011	62.30	64.90	62.20	64.80
4857	NASDAQ	AMSC	Tue, Sep 6, 2011	58.90	61.20	57.80	61.00
4856	NASDAQ	AMSC	Fri, Sep 2, 2011	64.50	64.60	60.00	60.90
4855	NASDAQ	AMSC	Thu, Sep 1, 2011	69.00	70.00	65.50	66.00
4854	NASDAQ	AMSC	Wed, Aug 31, 2011	72.80	73.90	67.30	68.60
4853	NASDAQ	AMSC	Tue, Aug 30, 2011	69.80	73.10	68.70	72.60
4852	NASDAQ	AMSC	Mon, Aug 29, 2011	64.80	70.00	64.30	69.90
4851	NASDAQ	AMSC	Fri, Aug 26, 2011	61.30	64.00	59.00	64.00
4850	NASDAQ	AMSC	Thu, Aug 25, 2011	63.50	64.30	60.50	61.40
4849	NASDAQ	AMSC	Wed, Aug 24, 2011	58.20	63.10	57.00	63.10
4848	NASDAQ	AMSC	Tue, Aug 23, 2011	51.10	60.30	51.10	58.50
4847	NASDAQ	AMSC	Mon, Aug 22, 2011	55.60	57.00	51.00	51.30
4846	NASDAQ	AMSC	Fri, Aug 19, 2011	56.30	57.70	53.80	54.10
4845	NASDAQ	AMSC	Thu, Aug 18, 2011	60.40	60.60	56.20	57.30
4844	NASDAQ	AMSC	Wed, Aug 17, 2011	63.60	65.50	61.20	62.30
4843	NASDAQ	AMSC	Tue, Aug 16, 2011	67.80	67.80	62.20	63.70
4842	NASDAQ	AMSC	Mon, Aug 15, 2011	70.10	72.50	67.30	68.40
4841	NASDAQ	AMSC	Fri, Aug 12, 2011	62.50	70.60	61.00	69.80
4840	NASDAQ	AMSC	Thu, Aug 11, 2011	57.50	62.50	53.80	62.20
4839	NASDAQ	AMSC	Wed, Aug 10, 2011	63.00	63.40	59.70	59.90
4838	NASDAQ	AMSC	Tue, Aug 9, 2011	58.20	64.30	56.30	64.30
4837	NASDAQ	AMSC	Mon, Aug 8, 2011	58.50	60.69	55.30	57.50
4836	NASDAQ	AMSC	Fri, Aug 5, 2011	62.30	63.80	59.00	61.60
4835	NASDAQ	AMSC	Thu, Aug 4, 2011	67.40	67.63	61.30	61.50
4834	NASDAQ	AMSC	Wed, Aug 3, 2011	66.20	68.90	62.80	68.90
4833	NASDAQ	AMSC	Tue, Aug 2, 2011	71.50	72.80	66.00	66.20
4832	NASDAQ	AMSC	Mon, Aug 1, 2011	75.00	75.70	71.00	71.60
4831	NASDAQ	AMSC	Fri, Jul 29, 2011	73.50	74.40	71.80	73.20
4830	NASDAQ	AMSC	Thu, Jul 28, 2011	76.80	76.80	74.00	74.30
4829	NASDAQ	AMSC	Wed, Jul 27, 2011	77.40	78.10	75.30	76.80
4828	NASDAQ	AMSC	Tue, Jul 26, 2011	78.50	78.75	77.00	77.90
4827	NASDAQ	AMSC	Mon, Jul 25, 2011	80.30	80.50	77.00	77.50
4826	NASDAQ	AMSC	Fri, Jul 22, 2011	79.80	79.90	78.20	79.20
4825	NASDAQ	AMSC	Thu, Jul 21, 2011	78.30	79.80	77.50	79.40
4824	NASDAQ	AMSC	Wed, Jul 20, 2011	77.90	78.30	75.80	77.80
4823	NASDAQ	AMSC	Tue, Jul 19, 2011	73.10	77.50	72.30	75.90
4822	NASDAQ	AMSC	Mon, Jul 18, 2011	76.50	77.90	71.50	72.20
4821	NASDAQ	AMSC	Fri, Jul 15, 2011	78.70	80.00	76.50	77.00
4820	NASDAQ	AMSC	Thu, Jul 14, 2011	79.90	83.10	78.10	78.20
4819	NASDAQ	AMSC	Wed, Jul 13, 2011	80.80	81.80	78.10	79.80
4818	NASDAQ	AMSC	Tue, Jul 12, 2011	77.70	82.50	74.40	81.20
4817	NASDAQ	AMSC	Mon, Jul 11, 2011	88.60	89.50	85.00	85.30
4816	NASDAQ	AMSC	Fri, Jul 8, 2011	87.80	90.40	86.00	90.30
4815	NASDAQ	AMSC	Thu, Jul 7, 2011	88.80	90.10	88.10	88.80
4814	NASDAQ	AMSC	Wed, Jul 6, 2011	90.10	90.60	87.90	88.20
4813	NASDAQ	AMSC	Tue, Jul 5, 2011	89.00	90.50	88.50	89.30
4812	NASDAQ	AMSC	Fri, Jul 1, 2011	90.50	91.20	88.30	88.80
4811	NASDAQ	AMSC	Thu, Jun 30, 2011	89.10	91.50	88.50	90.40
4810	NASDAQ	AMSC	Wed, Jun 29, 2011	86.30	89.20	86.00	89.10
4809	NASDAQ	AMSC	Tue, Jun 28, 2011	85.30	88.90	85.10	86.20
4808	NASDAQ	AMSC	Mon, Jun 27, 2011	80.60	85.00	80.30	84.90
4807	NASDAQ	AMSC	Fri, Jun 24, 2011	81.50	83.50	79.80	81.10
4806	NASDAQ	AMSC	Thu, Jun 23, 2011	80.00	81.60	78.10	81.40
4805	NASDAQ	AMSC	Wed, Jun 22, 2011	80.00	81.80	79.00	80.80
4804	NASDAQ	AMSC	Tue, Jun 21, 2011	76.80	80.30	75.70	80.00
4803	NASDAQ	AMSC	Mon, Jun 20, 2011	75.50	76.60	74.00	76.10
4802	NASDAQ	AMSC	Fri, Jun 17, 2011	78.80	78.90	75.00	75.50
4801	NASDAQ	AMSC	Thu, Jun 16, 2011	79.60	79.90	76.80	77.60
4800	NASDAQ	AMSC	Wed, Jun 15, 2011	80.10	83.00	78.70	79.10
4799	NASDAQ	AMSC	Tue, Jun 14, 2011	78.00	81.70	77.70	81.30
4798	NASDAQ	AMSC	Mon, Jun 13, 2011	77.70	80.90	77.20	77.30
4797	NASDAQ	AMSC	Fri, Jun 10, 2011	75.80	78.10	75.40	77.70
4796	NASDAQ	AMSC	Thu, Jun 9, 2011	76.10	78.70	75.40	76.60
4795	NASDAQ	AMSC	Wed, Jun 8, 2011	78.50	79.25	75.60	75.60
4794	NASDAQ	AMSC	Tue, Jun 7, 2011	80.90	81.30	78.50	79.30
4793	NASDAQ	AMSC	Mon, Jun 6, 2011	78.30	81.00	78.20	79.90
4792	NASDAQ	AMSC	Fri, Jun 3, 2011	78.60	79.30	76.10	77.30
4791	NASDAQ	AMSC	Thu, Jun 2, 2011	81.10	85.00	79.00	79.39
4790	NASDAQ	AMSC	Wed, Jun 1, 2011	95.20	95.70	81.00	81.10
4789	NASDAQ	AMSC	Tue, May 31, 2011	104.30	107.00	103.70	106.90
4788	NASDAQ	AMSC	Fri, May 27, 2011	101.80	103.60	100.40	102.50
4787	NASDAQ	AMSC	Thu, May 26, 2011	101.10	102.50	100.00	100.60
4786	NASDAQ	AMSC	Wed, May 25, 2011	101.10	102.80	100.00	102.50
4785	NASDAQ	AMSC	Tue, May 24, 2011	102.40	103.10	100.00	101.60
4784	NASDAQ	AMSC	Mon, May 23, 2011	101.40	104.40	100.00	102.50
4783	NASDAQ	AMSC	Fri, May 20, 2011	106.90	109.00	101.50	103.40
4782	NASDAQ	AMSC	Thu, May 19, 2011	110.20	110.80	107.30	108.20
4781	NASDAQ	AMSC	Wed, May 18, 2011	106.30	110.60	106.30	109.40
4780	NASDAQ	AMSC	Tue, May 17, 2011	112.00	112.80	105.40	105.90
4779	NASDAQ	AMSC	Mon, May 16, 2011	113.00	116.00	111.60	112.70
4778	NASDAQ	AMSC	Fri, May 13, 2011	117.00	117.00	111.50	113.60
4777	NASDAQ	AMSC	Thu, May 12, 2011	115.60	117.50	113.30	116.95
4776	NASDAQ	AMSC	Wed, May 11, 2011	119.00	120.10	115.00	116.30
4775	NASDAQ	AMSC	Tue, May 10, 2011	120.10	120.70	118.50	119.20
4774	NASDAQ	AMSC	Mon, May 9, 2011	119.20	120.69	117.00	119.90
4773	NASDAQ	AMSC	Fri, May 6, 2011	124.20	127.50	117.90	118.00
4772	NASDAQ	AMSC	Thu, May 5, 2011	115.20	124.10	114.30	122.50
4771	NASDAQ	AMSC	Wed, May 4, 2011	116.00	118.30	110.00	113.70
4770	NASDAQ	AMSC	Tue, May 3, 2011	117.00	119.70	116.00	116.40
4769	NASDAQ	AMSC	Mon, May 2, 2011	119.80	121.50	117.00	117.00
4768	NASDAQ	AMSC	Fri, Apr 29, 2011	117.10	119.30	116.10	118.50
4767	NASDAQ	AMSC	Thu, Apr 28, 2011	117.70	118.70	116.50	117.10
4766	NASDAQ	AMSC	Wed, Apr 27, 2011	118.90	119.60	117.00	118.10
4765	NASDAQ	AMSC	Tue, Apr 26, 2011	120.40	122.50	118.30	118.50
4764	NASDAQ	AMSC	Mon, Apr 25, 2011	117.50	123.50	117.00	119.80
4763	NASDAQ	AMSC	Thu, Apr 21, 2011	118.50	118.86	115.20	117.40
4762	NASDAQ	AMSC	Wed, Apr 20, 2011	119.50	119.70	115.00	115.40
4761	NASDAQ	AMSC	Tue, Apr 19, 2011	125.10	126.70	116.20	118.00
4760	NASDAQ	AMSC	Mon, Apr 18, 2011	126.00	127.00	123.40	124.70
4759	NASDAQ	AMSC	Fri, Apr 15, 2011	130.20	130.50	127.50	128.10
4758	NASDAQ	AMSC	Thu, Apr 14, 2011	126.30	134.70	126.30	130.10
4757	NASDAQ	AMSC	Wed, Apr 13, 2011	130.50	130.90	126.70	127.20
4756	NASDAQ	AMSC	Tue, Apr 12, 2011	132.50	135.00	127.50	129.30
4755	NASDAQ	AMSC	Mon, Apr 11, 2011	139.70	141.10	132.50	133.10
4754	NASDAQ	AMSC	Fri, Apr 8, 2011	136.00	139.90	134.30	137.70
4753	NASDAQ	AMSC	Thu, Apr 7, 2011	149.30	149.50	132.50	133.00
4752	NASDAQ	AMSC	Wed, Apr 6, 2011	130.00	156.40	125.40	144.70
4751	NASDAQ	AMSC	Tue, Apr 5, 2011	247.20	250.60	245.00	248.80
4750	NASDAQ	AMSC	Mon, Apr 4, 2011	245.40	248.85	242.30	246.80
4749	NASDAQ	AMSC	Fri, Apr 1, 2011	251.30	251.90	242.30	245.30
4748	NASDAQ	AMSC	Thu, Mar 31, 2011	251.20	251.30	246.50	248.70
4747	NASDAQ	AMSC	Wed, Mar 30, 2011	249.30	251.10	245.00	250.70
4746	NASDAQ	AMSC	Tue, Mar 29, 2011	236.30	247.60	234.30	247.00
4745	NASDAQ	AMSC	Mon, Mar 28, 2011	243.10	243.10	234.41	235.80
4744	NASDAQ	AMSC	Fri, Mar 25, 2011	239.00	244.60	238.20	240.40
4743	NASDAQ	AMSC	Thu, Mar 24, 2011	237.00	238.00	232.60	235.90
4742	NASDAQ	AMSC	Wed, Mar 23, 2011	233.10	236.20	230.10	234.80
4741	NASDAQ	AMSC	Tue, Mar 22, 2011	239.00	239.40	229.90	233.40
4740	NASDAQ	AMSC	Mon, Mar 21, 2011	232.70	236.60	231.30	236.30
4739	NASDAQ	AMSC	Fri, Mar 18, 2011	234.80	235.00	226.00	228.40
4738	NASDAQ	AMSC	Thu, Mar 17, 2011	241.10	244.10	230.00	232.40
4737	NASDAQ	AMSC	Wed, Mar 16, 2011	233.60	236.70	228.20	236.30
4736	NASDAQ	AMSC	Tue, Mar 15, 2011	223.90	239.60	219.70	232.60
4735	NASDAQ	AMSC	Mon, Mar 14, 2011	234.80	239.60	217.00	231.90
4734	NASDAQ	AMSC	Fri, Mar 11, 2011	251.00	252.20	239.20	242.80
4733	NASDAQ	AMSC	Thu, Mar 10, 2011	257.00	257.00	251.10	251.10
4732	NASDAQ	AMSC	Wed, Mar 9, 2011	261.30	264.40	258.10	258.50
4731	NASDAQ	AMSC	Tue, Mar 8, 2011	262.30	265.00	257.80	261.00
4730	NASDAQ	AMSC	Mon, Mar 7, 2011	267.50	267.60	256.00	260.80
4729	NASDAQ	AMSC	Fri, Mar 4, 2011	269.90	271.90	263.60	267.50
4728	NASDAQ	AMSC	Thu, Mar 3, 2011	267.50	270.90	266.70	268.90
4727	NASDAQ	AMSC	Wed, Mar 2, 2011	259.40	269.20	258.60	263.80
4726	NASDAQ	AMSC	Tue, Mar 1, 2011	265.00	266.50	258.80	260.60
4725	NASDAQ	AMSC	Mon, Feb 28, 2011	268.20	270.60	262.80	265.20
4724	NASDAQ	AMSC	Fri, Feb 25, 2011	269.00	269.30	265.00	267.00
4723	NASDAQ	AMSC	Thu, Feb 24, 2011	263.40	271.40	262.10	267.80
4722	NASDAQ	AMSC	Wed, Feb 23, 2011	268.50	270.00	262.00	263.50
4721	NASDAQ	AMSC	Tue, Feb 22, 2011	272.30	272.30	267.50	269.40
4720	NASDAQ	AMSC	Fri, Feb 18, 2011	279.60	280.80	273.10	273.70
4719	NASDAQ	AMSC	Thu, Feb 17, 2011	276.60	278.70	276.10	278.00
4718	NASDAQ	AMSC	Wed, Feb 16, 2011	277.40	279.90	276.31	277.90
4717	NASDAQ	AMSC	Tue, Feb 15, 2011	277.70	279.30	275.40	276.80
4716	NASDAQ	AMSC	Mon, Feb 14, 2011	277.20	280.80	277.10	279.00
4715	NASDAQ	AMSC	Fri, Feb 11, 2011	275.20	279.30	275.20	277.70
4714	NASDAQ	AMSC	Thu, Feb 10, 2011	273.90	279.60	273.00	276.60
4713	NASDAQ	AMSC	Wed, Feb 9, 2011	282.10	283.20	274.00	275.30
4712	NASDAQ	AMSC	Tue, Feb 8, 2011	284.10	286.50	280.40	282.30
4711	NASDAQ	AMSC	Mon, Feb 7, 2011	290.90	291.00	282.50	283.80
4710	NASDAQ	AMSC	Fri, Feb 4, 2011	287.50	292.80	280.60	289.90
4709	NASDAQ	AMSC	Thu, Feb 3, 2011	295.60	296.90	284.20	287.80
4708	NASDAQ	AMSC	Wed, Feb 2, 2011	299.40	300.20	286.70	292.00
4707	NASDAQ	AMSC	Tue, Feb 1, 2011	297.00	302.70	287.00	298.60
4706	NASDAQ	AMSC	Mon, Jan 31, 2011	274.70	276.50	270.00	272.70
4705	NASDAQ	AMSC	Fri, Jan 28, 2011	284.10	287.60	272.90	273.90
4704	NASDAQ	AMSC	Thu, Jan 27, 2011	278.00	284.30	275.00	283.40
4703	NASDAQ	AMSC	Wed, Jan 26, 2011	277.10	279.80	273.50	276.40
4702	NASDAQ	AMSC	Tue, Jan 25, 2011	273.60	277.00	272.02	275.60
4701	NASDAQ	AMSC	Mon, Jan 24, 2011	276.00	277.10	271.60	274.50
4700	NASDAQ	AMSC	Fri, Jan 21, 2011	279.60	284.20	271.90	273.00
4699	NASDAQ	AMSC	Thu, Jan 20, 2011	281.40	286.30	272.70	276.30
4698	NASDAQ	AMSC	Wed, Jan 19, 2011	290.50	291.60	279.60	282.80
4697	NASDAQ	AMSC	Tue, Jan 18, 2011	287.80	290.90	281.00	289.80
4696	NASDAQ	AMSC	Fri, Jan 14, 2011	289.52	292.50	285.60	287.30
4695	NASDAQ	AMSC	Thu, Jan 13, 2011	297.10	297.80	290.20	292.00
4694	NASDAQ	AMSC	Wed, Jan 12, 2011	293.10	298.10	287.50	297.10
4693	NASDAQ	AMSC	Tue, Jan 11, 2011	286.40	291.60	280.80	289.80
4692	NASDAQ	AMSC	Mon, Jan 10, 2011	271.40	286.20	269.60	286.20
4691	NASDAQ	AMSC	Fri, Jan 7, 2011	284.20	284.40	269.10	273.90
4690	NASDAQ	AMSC	Thu, Jan 6, 2011	288.10	288.50	281.90	282.20
4689	NASDAQ	AMSC	Wed, Jan 5, 2011	285.00	290.00	281.50	289.10
4688	NASDAQ	AMSC	Tue, Jan 4, 2011	299.80	304.20	283.70	286.10
4687	NASDAQ	AMSC	Mon, Jan 3, 2011	288.10	300.90	287.50	295.40
4686	NASDAQ	AMSC	Fri, Dec 31, 2010	286.70	289.20	285.10	285.90
4685	NASDAQ	AMSC	Thu, Dec 30, 2010	285.00	289.80	285.00	286.60
4684	NASDAQ	AMSC	Wed, Dec 29, 2010	284.00	291.80	284.00	285.50
4683	NASDAQ	AMSC	Tue, Dec 28, 2010	287.70	289.70	282.20	283.60
4682	NASDAQ	AMSC	Mon, Dec 27, 2010	290.00	290.00	285.10	288.50
4681	NASDAQ	AMSC	Thu, Dec 23, 2010	285.80	288.90	282.70	287.40
4680	NASDAQ	AMSC	Wed, Dec 22, 2010	295.90	298.10	285.50	285.70
4679	NASDAQ	AMSC	Tue, Dec 21, 2010	289.00	296.00	288.50	294.10
4678	NASDAQ	AMSC	Mon, Dec 20, 2010	290.20	293.85	283.20	288.70
4677	NASDAQ	AMSC	Fri, Dec 17, 2010	281.20	291.60	274.10	291.20
4676	NASDAQ	AMSC	Thu, Dec 16, 2010	290.60	296.80	279.50	281.90
4675	NASDAQ	AMSC	Wed, Dec 15, 2010	307.70	310.10	294.80	296.20
4674	NASDAQ	AMSC	Tue, Dec 14, 2010	306.20	310.80	302.60	309.20
4673	NASDAQ	AMSC	Mon, Dec 13, 2010	323.50	329.20	304.20	307.20
4672	NASDAQ	AMSC	Fri, Dec 10, 2010	333.40	335.80	326.70	334.80
4671	NASDAQ	AMSC	Thu, Dec 9, 2010	333.00	335.60	328.60	333.50
4670	NASDAQ	AMSC	Wed, Dec 8, 2010	329.80	333.00	325.50	330.80
4669	NASDAQ	AMSC	Tue, Dec 7, 2010	337.50	338.79	326.70	327.70
4668	NASDAQ	AMSC	Mon, Dec 6, 2010	333.50	334.60	330.40	333.70
4667	NASDAQ	AMSC	Fri, Dec 3, 2010	331.50	337.00	330.10	333.60
4666	NASDAQ	AMSC	Thu, Dec 2, 2010	336.30	337.99	332.10	334.60
4665	NASDAQ	AMSC	Wed, Dec 1, 2010	338.50	342.20	336.30	336.80
4664	NASDAQ	AMSC	Tue, Nov 30, 2010	327.20	335.40	326.50	332.80
4663	NASDAQ	AMSC	Mon, Nov 29, 2010	334.70	335.10	322.30	333.20
4662	NASDAQ	AMSC	Fri, Nov 26, 2010	339.70	342.10	337.51	338.40
4661	NASDAQ	AMSC	Wed, Nov 24, 2010	338.20	345.30	335.00	341.80
4660	NASDAQ	AMSC	Tue, Nov 23, 2010	334.40	341.20	332.50	335.90
4659	NASDAQ	AMSC	Mon, Nov 22, 2010	330.60	337.60	327.70	337.30
4658	NASDAQ	AMSC	Fri, Nov 19, 2010	330.80	335.10	326.50	331.80
4657	NASDAQ	AMSC	Thu, Nov 18, 2010	332.90	335.60	328.20	332.40
4656	NASDAQ	AMSC	Wed, Nov 17, 2010	325.10	334.30	324.10	325.10
4655	NASDAQ	AMSC	Tue, Nov 16, 2010	344.30	344.30	324.90	324.90
4654	NASDAQ	AMSC	Mon, Nov 15, 2010	348.20	355.00	340.50	344.70
4653	NASDAQ	AMSC	Fri, Nov 12, 2010	352.40	352.90	338.00	344.80
4652	NASDAQ	AMSC	Thu, Nov 11, 2010	354.40	357.50	347.40	354.80
4651	NASDAQ	AMSC	Wed, Nov 10, 2010	359.20	372.29	355.00	369.10
4650	NASDAQ	AMSC	Tue, Nov 9, 2010	364.00	367.80	358.20	361.10
4649	NASDAQ	AMSC	Mon, Nov 8, 2010	369.90	374.80	364.50	372.40
4648	NASDAQ	AMSC	Fri, Nov 5, 2010	370.00	375.00	367.00	369.90
4647	NASDAQ	AMSC	Thu, Nov 4, 2010	365.00	380.80	365.00	369.50
4646	NASDAQ	AMSC	Wed, Nov 3, 2010	364.90	364.90	347.40	361.50
4645	NASDAQ	AMSC	Tue, Nov 2, 2010	348.90	365.60	328.00	365.55
4644	NASDAQ	AMSC	Mon, Nov 1, 2010	342.20	343.00	323.40	325.00
4643	NASDAQ	AMSC	Fri, Oct 29, 2010	342.10	346.30	335.60	336.50
4642	NASDAQ	AMSC	Thu, Oct 28, 2010	348.90	353.10	338.90	342.90
4641	NASDAQ	AMSC	Wed, Oct 27, 2010	346.50	349.10	336.90	347.10
4640	NASDAQ	AMSC	Tue, Oct 26, 2010	346.90	355.30	341.10	350.80
4639	NASDAQ	AMSC	Mon, Oct 25, 2010	348.80	354.90	346.10	350.20
4638	NASDAQ	AMSC	Fri, Oct 22, 2010	346.00	349.90	340.00	346.00
4637	NASDAQ	AMSC	Thu, Oct 21, 2010	345.90	355.00	340.00	345.40
4636	NASDAQ	AMSC	Wed, Oct 20, 2010	345.40	352.00	342.00	345.70
4635	NASDAQ	AMSC	Tue, Oct 19, 2010	350.60	356.00	337.90	343.10
4634	NASDAQ	AMSC	Mon, Oct 18, 2010	359.30	367.80	355.60	356.60
4633	NASDAQ	AMSC	Fri, Oct 15, 2010	365.90	366.00	348.72	360.00
4632	NASDAQ	AMSC	Thu, Oct 14, 2010	382.20	382.50	372.10	374.80
4631	NASDAQ	AMSC	Wed, Oct 13, 2010	383.30	388.80	380.00	380.90
4630	NASDAQ	AMSC	Tue, Oct 12, 2010	369.20	383.90	361.70	380.50
4629	NASDAQ	AMSC	Mon, Oct 11, 2010	365.00	366.50	358.20	365.00
4628	NASDAQ	AMSC	Fri, Oct 8, 2010	351.00	367.00	348.00	363.90
4627	NASDAQ	AMSC	Thu, Oct 7, 2010	357.10	357.10	346.10	351.90
4626	NASDAQ	AMSC	Wed, Oct 6, 2010	358.30	363.00	342.10	353.90
4625	NASDAQ	AMSC	Tue, Oct 5, 2010	324.10	334.60	323.00	334.60
4624	NASDAQ	AMSC	Mon, Oct 4, 2010	314.50	323.89	314.00	318.80
4623	NASDAQ	AMSC	Fri, Oct 1, 2010	314.50	317.40	309.70	314.60
4622	NASDAQ	AMSC	Thu, Sep 30, 2010	311.00	315.00	305.60	311.00
4621	NASDAQ	AMSC	Wed, Sep 29, 2010	303.40	310.90	301.00	309.40
4620	NASDAQ	AMSC	Tue, Sep 28, 2010	304.20	306.62	296.30	305.20
4619	NASDAQ	AMSC	Mon, Sep 27, 2010	307.20	308.90	299.60	302.20
4618	NASDAQ	AMSC	Fri, Sep 24, 2010	302.50	306.20	299.30	306.20
4617	NASDAQ	AMSC	Thu, Sep 23, 2010	296.40	304.20	292.60	297.60
4616	NASDAQ	AMSC	Wed, Sep 22, 2010	309.70	310.60	299.30	300.30
4615	NASDAQ	AMSC	Tue, Sep 21, 2010	304.60	310.90	300.00	304.30
4614	NASDAQ	AMSC	Mon, Sep 20, 2010	291.40	304.40	288.10	304.10
4613	NASDAQ	AMSC	Fri, Sep 17, 2010	289.80	291.90	284.10	289.60
4612	NASDAQ	AMSC	Thu, Sep 16, 2010	288.00	291.00	286.00	289.60
4611	NASDAQ	AMSC	Wed, Sep 15, 2010	288.70	290.80	287.70	289.50
4610	NASDAQ	AMSC	Tue, Sep 14, 2010	292.40	295.40	288.20	290.70
4609	NASDAQ	AMSC	Mon, Sep 13, 2010	293.20	298.40	292.60	294.50
4608	NASDAQ	AMSC	Fri, Sep 10, 2010	296.50	296.90	289.54	290.50
4607	NASDAQ	AMSC	Thu, Sep 9, 2010	295.20	296.90	289.50	295.90
4606	NASDAQ	AMSC	Wed, Sep 8, 2010	287.70	294.00	286.35	290.80
4605	NASDAQ	AMSC	Tue, Sep 7, 2010	291.20	292.10	284.30	285.90
4604	NASDAQ	AMSC	Fri, Sep 3, 2010	288.20	294.40	286.70	293.90
4603	NASDAQ	AMSC	Thu, Sep 2, 2010	280.00	285.00	278.40	284.10
4602	NASDAQ	AMSC	Wed, Sep 1, 2010	275.40	282.00	273.10	278.70
4601	NASDAQ	AMSC	Tue, Aug 31, 2010	268.80	277.70	266.70	268.10
4600	NASDAQ	AMSC	Mon, Aug 30, 2010	278.90	279.10	270.20	270.40
4599	NASDAQ	AMSC	Fri, Aug 27, 2010	270.80	280.00	265.00	279.80
4598	NASDAQ	AMSC	Thu, Aug 26, 2010	275.00	277.80	266.20	267.20
4597	NASDAQ	AMSC	Wed, Aug 25, 2010	265.00	274.00	265.00	272.70
4596	NASDAQ	AMSC	Tue, Aug 24, 2010	265.00	272.90	261.30	267.40
4595	NASDAQ	AMSC	Mon, Aug 23, 2010	275.80	280.69	268.00	268.00
4594	NASDAQ	AMSC	Fri, Aug 20, 2010	271.50	273.60	268.80	272.40
4593	NASDAQ	AMSC	Thu, Aug 19, 2010	282.00	284.70	272.20	272.50
4592	NASDAQ	AMSC	Wed, Aug 18, 2010	285.60	287.30	279.50	284.10
4591	NASDAQ	AMSC	Tue, Aug 17, 2010	278.10	288.70	275.10	285.20
4590	NASDAQ	AMSC	Mon, Aug 16, 2010	271.80	279.20	270.00	275.20
4589	NASDAQ	AMSC	Fri, Aug 13, 2010	279.30	281.20	273.60	274.00
4588	NASDAQ	AMSC	Thu, Aug 12, 2010	279.10	282.40	275.00	281.50
4587	NASDAQ	AMSC	Wed, Aug 11, 2010	290.40	290.53	280.20	283.80
4586	NASDAQ	AMSC	Tue, Aug 10, 2010	297.30	300.50	290.80	296.60
4585	NASDAQ	AMSC	Mon, Aug 9, 2010	302.20	303.50	298.40	302.90
4584	NASDAQ	AMSC	Fri, Aug 6, 2010	300.60	303.20	295.00	300.70
4583	NASDAQ	AMSC	Thu, Aug 5, 2010	299.00	307.90	298.00	305.80
4582	NASDAQ	AMSC	Wed, Aug 4, 2010	303.20	305.80	299.30	302.20
4581	NASDAQ	AMSC	Tue, Aug 3, 2010	303.10	308.70	299.70	301.70
4580	NASDAQ	AMSC	Mon, Aug 2, 2010	307.00	309.10	299.00	304.10
4579	NASDAQ	AMSC	Fri, Jul 30, 2010	300.90	307.90	298.00	301.50
4578	NASDAQ	AMSC	Thu, Jul 29, 2010	330.20	331.00	301.30	305.50
4577	NASDAQ	AMSC	Wed, Jul 28, 2010	323.30	330.20	323.00	327.20
4576	NASDAQ	AMSC	Tue, Jul 27, 2010	327.00	328.30	320.00	322.80
4575	NASDAQ	AMSC	Mon, Jul 26, 2010	315.00	327.40	310.20	325.30
4574	NASDAQ	AMSC	Fri, Jul 23, 2010	303.80	314.70	299.50	314.30
4573	NASDAQ	AMSC	Thu, Jul 22, 2010	288.80	307.00	288.80	306.10
4572	NASDAQ	AMSC	Wed, Jul 21, 2010	293.70	294.90	282.60	284.60
4571	NASDAQ	AMSC	Tue, Jul 20, 2010	277.30	292.70	275.50	291.70
4570	NASDAQ	AMSC	Mon, Jul 19, 2010	282.20	287.80	276.40	283.40
4569	NASDAQ	AMSC	Fri, Jul 16, 2010	291.10	293.30	281.00	281.70
4568	NASDAQ	AMSC	Thu, Jul 15, 2010	294.20	301.00	288.50	294.50
4567	NASDAQ	AMSC	Wed, Jul 14, 2010	292.10	299.69	291.04	294.60
4566	NASDAQ	AMSC	Tue, Jul 13, 2010	287.40	295.10	287.40	294.00
4565	NASDAQ	AMSC	Mon, Jul 12, 2010	284.30	287.40	277.50	282.50
4564	NASDAQ	AMSC	Fri, Jul 9, 2010	282.30	288.40	280.90	285.90
4563	NASDAQ	AMSC	Thu, Jul 8, 2010	283.50	287.20	276.60	284.10
4562	NASDAQ	AMSC	Wed, Jul 7, 2010	266.90	279.60	266.80	278.30
4561	NASDAQ	AMSC	Tue, Jul 6, 2010	276.20	281.00	264.10	266.80
4560	NASDAQ	AMSC	Fri, Jul 2, 2010	272.50	273.70	265.90	268.40
4559	NASDAQ	AMSC	Thu, Jul 1, 2010	268.00	271.20	255.90	270.00
4558	NASDAQ	AMSC	Wed, Jun 30, 2010	271.10	281.30	265.00	266.90
4557	NASDAQ	AMSC	Tue, Jun 29, 2010	280.00	280.15	267.50	270.80
4556	NASDAQ	AMSC	Mon, Jun 28, 2010	291.40	294.20	285.32	285.50
4555	NASDAQ	AMSC	Fri, Jun 25, 2010	292.30	298.80	285.50	292.60
4554	NASDAQ	AMSC	Thu, Jun 24, 2010	299.80	302.70	290.00	291.80
4553	NASDAQ	AMSC	Wed, Jun 23, 2010	304.40	312.00	294.80	303.00
4552	NASDAQ	AMSC	Tue, Jun 22, 2010	315.20	318.50	300.00	300.30
4551	NASDAQ	AMSC	Mon, Jun 21, 2010	314.60	325.70	312.40	314.70
4550	NASDAQ	AMSC	Fri, Jun 18, 2010	314.40	314.90	306.50	309.30
4549	NASDAQ	AMSC	Thu, Jun 17, 2010	311.70	312.60	304.20	312.20
4548	NASDAQ	AMSC	Wed, Jun 16, 2010	310.30	313.20	305.30	309.50
4547	NASDAQ	AMSC	Tue, Jun 15, 2010	307.40	314.90	304.80	314.70
4546	NASDAQ	AMSC	Mon, Jun 14, 2010	295.40	308.70	295.40	304.90
4545	NASDAQ	AMSC	Fri, Jun 11, 2010	287.30	294.10	285.20	294.10
4544	NASDAQ	AMSC	Thu, Jun 10, 2010	286.60	293.00	285.20	292.45
4543	NASDAQ	AMSC	Wed, Jun 9, 2010	282.80	288.00	276.90	279.20
4542	NASDAQ	AMSC	Tue, Jun 8, 2010	289.80	299.50	275.70	279.10
4541	NASDAQ	AMSC	Mon, Jun 7, 2010	296.40	299.00	287.00	288.10
4540	NASDAQ	AMSC	Fri, Jun 4, 2010	301.00	306.10	292.80	295.10
4539	NASDAQ	AMSC	Thu, Jun 3, 2010	308.80	313.50	302.40	311.80
4538	NASDAQ	AMSC	Wed, Jun 2, 2010	306.20	310.30	303.10	310.30
4537	NASDAQ	AMSC	Tue, Jun 1, 2010	302.10	313.25	300.00	301.60
4536	NASDAQ	AMSC	Fri, May 28, 2010	311.20	317.00	302.70	306.60
4535	NASDAQ	AMSC	Thu, May 27, 2010	303.60	318.80	299.30	318.40
4534	NASDAQ	AMSC	Wed, May 26, 2010	297.40	311.60	291.90	293.60
4533	NASDAQ	AMSC	Tue, May 25, 2010	277.30	298.50	268.00	295.70
4532	NASDAQ	AMSC	Mon, May 24, 2010	297.60	299.00	286.30	287.30
4531	NASDAQ	AMSC	Fri, May 21, 2010	280.10	298.00	275.10	290.50
4530	NASDAQ	AMSC	Thu, May 20, 2010	301.40	302.90	283.70	285.80
4529	NASDAQ	AMSC	Wed, May 19, 2010	311.90	320.00	304.20	308.90
4528	NASDAQ	AMSC	Tue, May 18, 2010	335.05	342.10	311.14	317.40
4527	NASDAQ	AMSC	Mon, May 17, 2010	322.80	338.25	320.20	333.90
4526	NASDAQ	AMSC	Fri, May 14, 2010	301.80	311.50	301.80	309.60
4525	NASDAQ	AMSC	Thu, May 13, 2010	308.60	316.90	302.00	307.70
4524	NASDAQ	AMSC	Wed, May 12, 2010	274.50	293.70	274.40	292.40
4523	NASDAQ	AMSC	Tue, May 11, 2010	266.50	280.40	266.50	274.40
4522	NASDAQ	AMSC	Mon, May 10, 2010	269.40	278.00	265.10	273.00
4521	NASDAQ	AMSC	Fri, May 7, 2010	263.20	268.40	243.50	250.50
4520	NASDAQ	AMSC	Thu, May 6, 2010	273.40	281.40	245.50	258.40
4519	NASDAQ	AMSC	Wed, May 5, 2010	275.10	281.40	265.70	274.60
4518	NASDAQ	AMSC	Tue, May 4, 2010	292.80	295.70	275.60	277.90
4517	NASDAQ	AMSC	Mon, May 3, 2010	293.10	299.40	290.15	298.70
4516	NASDAQ	AMSC	Fri, Apr 30, 2010	305.30	307.60	291.10	291.80
4515	NASDAQ	AMSC	Thu, Apr 29, 2010	298.20	307.10	295.90	306.70
4514	NASDAQ	AMSC	Wed, Apr 28, 2010	297.10	299.62	288.10	295.30
4513	NASDAQ	AMSC	Tue, Apr 27, 2010	306.50	307.90	294.00	296.00
4512	NASDAQ	AMSC	Mon, Apr 26, 2010	315.90	317.00	307.70	309.10
4511	NASDAQ	AMSC	Fri, Apr 23, 2010	319.30	322.40	315.00	317.00
4510	NASDAQ	AMSC	Thu, Apr 22, 2010	302.30	320.80	299.10	319.50
4509	NASDAQ	AMSC	Wed, Apr 21, 2010	308.00	309.99	297.90	305.50
4508	NASDAQ	AMSC	Tue, Apr 20, 2010	298.70	309.60	298.70	306.10
4507	NASDAQ	AMSC	Mon, Apr 19, 2010	304.10	304.20	288.00	296.90
4506	NASDAQ	AMSC	Fri, Apr 16, 2010	319.00	320.00	303.90	304.10
4505	NASDAQ	AMSC	Thu, Apr 15, 2010	305.00	321.30	300.50	318.90
4504	NASDAQ	AMSC	Wed, Apr 14, 2010	289.20	294.50	287.70	290.60
4503	NASDAQ	AMSC	Tue, Apr 13, 2010	284.00	289.80	282.60	285.90
4502	NASDAQ	AMSC	Mon, Apr 12, 2010	290.70	293.40	281.60	283.90
4501	NASDAQ	AMSC	Fri, Apr 9, 2010	293.30	296.70	288.80	289.70
4500	NASDAQ	AMSC	Thu, Apr 8, 2010	289.00	294.00	284.45	293.60
4499	NASDAQ	AMSC	Wed, Apr 7, 2010	293.20	294.00	289.10	291.20
4498	NASDAQ	AMSC	Tue, Apr 6, 2010	292.50	294.00	289.00	293.20
4497	NASDAQ	AMSC	Mon, Apr 5, 2010	292.70	295.00	280.80	288.20
4496	NASDAQ	AMSC	Thu, Apr 1, 2010	297.90	304.00	286.80	292.70
4495	NASDAQ	AMSC	Wed, Mar 31, 2010	277.53	296.90	276.60	289.00
4494	NASDAQ	AMSC	Tue, Mar 30, 2010	274.90	278.50	270.30	278.50
4493	NASDAQ	AMSC	Mon, Mar 29, 2010	278.50	280.90	273.60	275.30
4492	NASDAQ	AMSC	Fri, Mar 26, 2010	278.70	283.50	277.60	278.60
4491	NASDAQ	AMSC	Thu, Mar 25, 2010	284.00	290.95	277.60	278.30
4490	NASDAQ	AMSC	Wed, Mar 24, 2010	288.00	291.50	280.10	281.50
4489	NASDAQ	AMSC	Tue, Mar 23, 2010	280.40	284.80	273.70	284.00
4488	NASDAQ	AMSC	Mon, Mar 22, 2010	252.90	262.40	251.25	261.40
4487	NASDAQ	AMSC	Fri, Mar 19, 2010	263.90	265.00	253.20	254.40
4486	NASDAQ	AMSC	Thu, Mar 18, 2010	263.30	266.00	258.70	261.80
4485	NASDAQ	AMSC	Wed, Mar 17, 2010	263.20	270.00	260.10	260.40
4484	NASDAQ	AMSC	Tue, Mar 16, 2010	282.30	283.40	257.00	258.70
4483	NASDAQ	AMSC	Mon, Mar 15, 2010	301.10	301.10	280.50	281.40
4482	NASDAQ	AMSC	Fri, Mar 12, 2010	298.70	306.40	292.70	302.00
4481	NASDAQ	AMSC	Thu, Mar 11, 2010	297.30	299.90	292.70	296.30
4480	NASDAQ	AMSC	Wed, Mar 10, 2010	304.40	304.90	296.70	298.20
4479	NASDAQ	AMSC	Tue, Mar 9, 2010	298.10	305.70	297.70	301.40
4478	NASDAQ	AMSC	Mon, Mar 8, 2010	310.00	310.90	298.80	300.20
4477	NASDAQ	AMSC	Fri, Mar 5, 2010	306.00	311.80	303.00	309.50
4476	NASDAQ	AMSC	Thu, Mar 4, 2010	303.90	309.00	302.00	304.70
4475	NASDAQ	AMSC	Wed, Mar 3, 2010	293.50	307.20	290.40	300.50
4474	NASDAQ	AMSC	Tue, Mar 2, 2010	290.10	296.60	288.70	289.90
4473	NASDAQ	AMSC	Mon, Mar 1, 2010	284.30	292.50	279.80	288.80
4472	NASDAQ	AMSC	Fri, Feb 26, 2010	284.20	284.40	277.00	280.00
4471	NASDAQ	AMSC	Thu, Feb 25, 2010	277.50	283.60	270.90	282.60
4470	NASDAQ	AMSC	Wed, Feb 24, 2010	278.30	286.90	278.00	283.48
4469	NASDAQ	AMSC	Tue, Feb 23, 2010	290.70	296.70	274.60	278.20
4468	NASDAQ	AMSC	Mon, Feb 22, 2010	315.90	316.70	290.60	293.00
4467	NASDAQ	AMSC	Fri, Feb 19, 2010	320.40	321.60	313.20	314.90
4466	NASDAQ	AMSC	Thu, Feb 18, 2010	316.40	321.50	315.40	321.10
4465	NASDAQ	AMSC	Wed, Feb 17, 2010	322.00	322.45	314.30	317.70
4464	NASDAQ	AMSC	Tue, Feb 16, 2010	320.50	322.90	316.20	319.20
4463	NASDAQ	AMSC	Fri, Feb 12, 2010	321.00	322.80	313.20	318.80
4462	NASDAQ	AMSC	Thu, Feb 11, 2010	313.30	325.80	311.10	324.30
4461	NASDAQ	AMSC	Wed, Feb 10, 2010	312.50	323.35	309.40	317.00
4460	NASDAQ	AMSC	Tue, Feb 9, 2010	312.00	322.20	310.00	311.40
4459	NASDAQ	AMSC	Mon, Feb 8, 2010	316.80	323.60	308.40	308.80
4458	NASDAQ	AMSC	Fri, Feb 5, 2010	318.80	323.50	302.50	318.20
4457	NASDAQ	AMSC	Thu, Feb 4, 2010	332.70	335.90	318.00	320.90
4456	NASDAQ	AMSC	Wed, Feb 3, 2010	356.90	358.50	331.20	338.30
4455	NASDAQ	AMSC	Tue, Feb 2, 2010	384.30	387.90	355.20	356.90
4454	NASDAQ	AMSC	Mon, Feb 1, 2010	384.00	398.10	382.80	397.50
4453	NASDAQ	AMSC	Fri, Jan 29, 2010	385.10	394.80	377.50	380.20
4452	NASDAQ	AMSC	Thu, Jan 28, 2010	394.90	394.90	380.00	382.00
4451	NASDAQ	AMSC	Wed, Jan 27, 2010	389.10	397.80	384.60	392.20
4450	NASDAQ	AMSC	Tue, Jan 26, 2010	371.30	392.90	370.00	390.30
4449	NASDAQ	AMSC	Mon, Jan 25, 2010	370.10	381.20	365.90	371.70
4448	NASDAQ	AMSC	Fri, Jan 22, 2010	379.20	382.49	363.50	365.40
4447	NASDAQ	AMSC	Thu, Jan 21, 2010	396.20	402.30	366.70	380.40
4446	NASDAQ	AMSC	Wed, Jan 20, 2010	405.40	407.20	394.30	397.50
4445	NASDAQ	AMSC	Tue, Jan 19, 2010	401.50	411.20	395.60	410.00
4444	NASDAQ	AMSC	Fri, Jan 15, 2010	417.80	418.30	394.30	404.20
4443	NASDAQ	AMSC	Thu, Jan 14, 2010	426.00	430.00	415.10	416.60
4442	NASDAQ	AMSC	Wed, Jan 13, 2010	431.10	436.40	425.00	427.70
4441	NASDAQ	AMSC	Tue, Jan 12, 2010	427.10	438.50	427.10	430.40
4440	NASDAQ	AMSC	Mon, Jan 11, 2010	435.40	439.50	430.00	431.10
4439	NASDAQ	AMSC	Fri, Jan 8, 2010	432.00	437.30	427.90	434.20
4438	NASDAQ	AMSC	Thu, Jan 7, 2010	430.40	437.00	421.60	431.70
4437	NASDAQ	AMSC	Wed, Jan 6, 2010	423.30	435.00	422.90	428.70
4436	NASDAQ	AMSC	Tue, Jan 5, 2010	422.10	429.80	416.90	425.20
4435	NASDAQ	AMSC	Mon, Jan 4, 2010	415.50	422.50	414.60	421.50
4434	NASDAQ	AMSC	Thu, Dec 31, 2009	420.70	420.70	409.00	409.00
4433	NASDAQ	AMSC	Wed, Dec 30, 2009	416.60	420.50	410.50	414.00
4432	NASDAQ	AMSC	Tue, Dec 29, 2009	430.00	433.20	417.30	419.90
4431	NASDAQ	AMSC	Mon, Dec 28, 2009	429.20	434.10	425.20	428.00
4430	NASDAQ	AMSC	Thu, Dec 24, 2009	424.20	429.90	423.70	426.70
4429	NASDAQ	AMSC	Wed, Dec 23, 2009	423.70	429.50	417.00	423.70
4428	NASDAQ	AMSC	Tue, Dec 22, 2009	417.50	426.90	412.20	419.30
4427	NASDAQ	AMSC	Mon, Dec 21, 2009	406.30	421.70	405.50	418.90
4426	NASDAQ	AMSC	Fri, Dec 18, 2009	397.10	402.73	393.10	402.70
4425	NASDAQ	AMSC	Thu, Dec 17, 2009	396.50	405.30	390.50	394.60
4424	NASDAQ	AMSC	Wed, Dec 16, 2009	400.00	414.90	395.90	400.70
4423	NASDAQ	AMSC	Tue, Dec 15, 2009	390.00	404.30	383.20	401.30
4422	NASDAQ	AMSC	Mon, Dec 14, 2009	388.90	394.20	382.00	390.90
4421	NASDAQ	AMSC	Fri, Dec 11, 2009	395.30	397.90	377.50	386.90
4420	NASDAQ	AMSC	Thu, Dec 10, 2009	388.70	400.00	381.10	391.30
4419	NASDAQ	AMSC	Wed, Dec 9, 2009	356.40	386.10	350.83	381.70
4418	NASDAQ	AMSC	Tue, Dec 8, 2009	343.20	360.00	339.10	355.20
4417	NASDAQ	AMSC	Mon, Dec 7, 2009	340.50	348.00	340.50	344.80
4416	NASDAQ	AMSC	Fri, Dec 4, 2009	346.70	350.60	335.00	344.80
4415	NASDAQ	AMSC	Thu, Dec 3, 2009	345.10	348.90	340.00	342.30
4414	NASDAQ	AMSC	Wed, Dec 2, 2009	342.90	349.10	337.80	342.30
4413	NASDAQ	AMSC	Tue, Dec 1, 2009	336.60	348.80	333.90	343.60
4412	NASDAQ	AMSC	Mon, Nov 30, 2009	328.00	332.90	322.50	332.00
4411	NASDAQ	AMSC	Fri, Nov 27, 2009	325.00	332.85	316.52	327.80
4410	NASDAQ	AMSC	Wed, Nov 25, 2009	337.20	339.40	332.50	334.30
4409	NASDAQ	AMSC	Tue, Nov 24, 2009	339.50	340.00	330.20	336.00
4408	NASDAQ	AMSC	Mon, Nov 23, 2009	330.70	343.20	330.70	340.30
4407	NASDAQ	AMSC	Fri, Nov 20, 2009	333.30	335.70	322.00	326.30
4406	NASDAQ	AMSC	Thu, Nov 19, 2009	330.50	331.70	315.40	330.20
4405	NASDAQ	AMSC	Wed, Nov 18, 2009	319.70	326.30	315.00	324.90
4404	NASDAQ	AMSC	Tue, Nov 17, 2009	320.00	323.20	315.30	317.80
4403	NASDAQ	AMSC	Mon, Nov 16, 2009	323.00	329.10	318.60	321.70
4402	NASDAQ	AMSC	Fri, Nov 13, 2009	308.20	313.80	304.70	310.00
4401	NASDAQ	AMSC	Thu, Nov 12, 2009	320.10	323.10	306.30	307.60
4400	NASDAQ	AMSC	Wed, Nov 11, 2009	327.40	328.70	319.10	322.20
4399	NASDAQ	AMSC	Tue, Nov 10, 2009	327.70	332.50	320.00	321.40
4398	NASDAQ	AMSC	Mon, Nov 9, 2009	322.00	331.90	322.00	330.00
4397	NASDAQ	AMSC	Fri, Nov 6, 2009	321.10	327.60	315.50	318.80
4396	NASDAQ	AMSC	Thu, Nov 5, 2009	322.70	331.00	321.40	325.20
4395	NASDAQ	AMSC	Wed, Nov 4, 2009	327.70	333.20	316.60	317.60
4394	NASDAQ	AMSC	Tue, Nov 3, 2009	321.50	332.50	318.10	326.20
4393	NASDAQ	AMSC	Mon, Nov 2, 2009	339.20	339.20	319.40	325.00
4392	NASDAQ	AMSC	Fri, Oct 30, 2009	348.00	355.00	332.61	335.20
4391	NASDAQ	AMSC	Thu, Oct 29, 2009	329.80	357.80	321.15	353.40
4390	NASDAQ	AMSC	Wed, Oct 28, 2009	306.00	308.10	287.60	288.40
4389	NASDAQ	AMSC	Tue, Oct 27, 2009	314.60	323.00	309.10	310.00
4388	NASDAQ	AMSC	Mon, Oct 26, 2009	323.30	325.70	309.20	313.50
4387	NASDAQ	AMSC	Fri, Oct 23, 2009	317.30	317.40	305.40	308.10
4386	NASDAQ	AMSC	Thu, Oct 22, 2009	312.20	318.60	302.50	316.70
4385	NASDAQ	AMSC	Wed, Oct 21, 2009	316.60	325.70	313.25	314.20
4384	NASDAQ	AMSC	Tue, Oct 20, 2009	324.10	324.87	311.60	316.80
4383	NASDAQ	AMSC	Mon, Oct 19, 2009	323.80	329.80	315.50	323.60
4382	NASDAQ	AMSC	Fri, Oct 16, 2009	331.60	332.60	321.40	323.20
4381	NASDAQ	AMSC	Thu, Oct 15, 2009	338.00	339.90	330.80	334.90
4380	NASDAQ	AMSC	Wed, Oct 14, 2009	339.20	341.38	333.70	338.70
4379	NASDAQ	AMSC	Tue, Oct 13, 2009	340.00	340.00	322.40	332.20
4378	NASDAQ	AMSC	Mon, Oct 12, 2009	332.60	339.00	325.00	326.90
4377	NASDAQ	AMSC	Fri, Oct 9, 2009	312.00	332.10	309.20	332.10
4376	NASDAQ	AMSC	Thu, Oct 8, 2009	317.70	320.10	308.80	313.70
4375	NASDAQ	AMSC	Wed, Oct 7, 2009	313.40	317.10	307.80	312.90
4374	NASDAQ	AMSC	Tue, Oct 6, 2009	312.60	317.79	306.20	314.30
4373	NASDAQ	AMSC	Mon, Oct 5, 2009	309.00	316.90	303.20	309.50
4372	NASDAQ	AMSC	Fri, Oct 2, 2009	312.60	320.30	302.00	307.00
4371	NASDAQ	AMSC	Thu, Oct 1, 2009	339.00	339.00	317.00	318.10
4370	NASDAQ	AMSC	Wed, Sep 30, 2009	331.60	342.50	322.70	335.40
4369	NASDAQ	AMSC	Tue, Sep 29, 2009	308.55	315.00	303.20	303.60
4368	NASDAQ	AMSC	Mon, Sep 28, 2009	305.10	314.50	302.50	307.80
4367	NASDAQ	AMSC	Fri, Sep 25, 2009	296.80	306.50	293.80	304.40
4366	NASDAQ	AMSC	Thu, Sep 24, 2009	311.40	322.20	291.70	297.30
4365	NASDAQ	AMSC	Wed, Sep 23, 2009	316.80	324.00	308.10	309.40
4364	NASDAQ	AMSC	Tue, Sep 22, 2009	326.30	328.80	307.90	310.90
4363	NASDAQ	AMSC	Mon, Sep 21, 2009	358.10	358.95	325.00	327.00
4362	NASDAQ	AMSC	Fri, Sep 18, 2009	370.00	375.80	365.50	371.90
4361	NASDAQ	AMSC	Thu, Sep 17, 2009	351.60	370.60	350.00	367.90
4360	NASDAQ	AMSC	Wed, Sep 16, 2009	343.80	352.01	342.00	352.00
4359	NASDAQ	AMSC	Tue, Sep 15, 2009	339.90	347.70	337.70	341.40
4358	NASDAQ	AMSC	Mon, Sep 14, 2009	339.10	342.60	334.00	339.10
4357	NASDAQ	AMSC	Fri, Sep 11, 2009	352.50	357.10	336.51	343.60
4356	NASDAQ	AMSC	Thu, Sep 10, 2009	337.40	353.10	330.20	352.20
4355	NASDAQ	AMSC	Wed, Sep 9, 2009	331.90	335.70	327.80	334.80
4354	NASDAQ	AMSC	Tue, Sep 8, 2009	314.10	326.50	313.60	326.10
4353	NASDAQ	AMSC	Fri, Sep 4, 2009	307.40	310.30	303.20	309.90
4352	NASDAQ	AMSC	Thu, Sep 3, 2009	307.70	314.40	302.20	307.50
4351	NASDAQ	AMSC	Wed, Sep 2, 2009	304.40	310.00	301.10	305.80
4350	NASDAQ	AMSC	Tue, Sep 1, 2009	320.60	325.00	304.90	307.10
4349	NASDAQ	AMSC	Mon, Aug 31, 2009	332.50	332.50	320.00	323.10
4348	NASDAQ	AMSC	Fri, Aug 28, 2009	333.50	340.00	324.00	333.20
4347	NASDAQ	AMSC	Thu, Aug 27, 2009	341.00	342.50	323.00	330.60
4346	NASDAQ	AMSC	Wed, Aug 26, 2009	331.20	342.60	330.50	339.80
4345	NASDAQ	AMSC	Tue, Aug 25, 2009	324.20	331.70	323.00	330.00
4344	NASDAQ	AMSC	Mon, Aug 24, 2009	330.50	332.50	321.00	323.20
4343	NASDAQ	AMSC	Fri, Aug 21, 2009	327.50	332.50	324.50	330.40
4342	NASDAQ	AMSC	Thu, Aug 20, 2009	318.90	328.40	316.00	324.30
4341	NASDAQ	AMSC	Wed, Aug 19, 2009	305.00	320.40	303.60	319.20
4340	NASDAQ	AMSC	Tue, Aug 18, 2009	308.80	315.60	301.20	314.60
4339	NASDAQ	AMSC	Mon, Aug 17, 2009	310.60	311.40	294.13	296.70
4338	NASDAQ	AMSC	Fri, Aug 14, 2009	328.50	329.90	316.00	319.60
4337	NASDAQ	AMSC	Thu, Aug 13, 2009	342.20	342.60	327.50	332.60
4336	NASDAQ	AMSC	Wed, Aug 12, 2009	325.10	342.20	325.00	335.90
4335	NASDAQ	AMSC	Tue, Aug 11, 2009	340.00	347.20	326.60	327.70
4334	NASDAQ	AMSC	Mon, Aug 10, 2009	343.20	346.10	338.70	340.40
4333	NASDAQ	AMSC	Fri, Aug 7, 2009	340.80	352.60	336.00	342.80
4332	NASDAQ	AMSC	Thu, Aug 6, 2009	331.30	336.80	323.60	331.70
4331	NASDAQ	AMSC	Wed, Aug 5, 2009	328.70	340.00	317.50	320.00
4330	NASDAQ	AMSC	Tue, Aug 4, 2009	329.00	334.70	319.20	326.70
4329	NASDAQ	AMSC	Mon, Aug 3, 2009	330.00	330.00	321.70	329.00
4328	NASDAQ	AMSC	Fri, Jul 31, 2009	319.90	329.30	301.40	321.70
4327	NASDAQ	AMSC	Thu, Jul 30, 2009	297.50	364.70	296.50	321.30
4326	NASDAQ	AMSC	Wed, Jul 29, 2009	262.20	270.00	255.50	262.80
4325	NASDAQ	AMSC	Tue, Jul 28, 2009	273.60	274.80	262.55	268.60
4324	NASDAQ	AMSC	Mon, Jul 27, 2009	266.70	278.90	263.80	275.60
4323	NASDAQ	AMSC	Fri, Jul 24, 2009	263.00	269.20	257.80	268.40
4322	NASDAQ	AMSC	Thu, Jul 23, 2009	253.80	264.40	250.64	263.80
4321	NASDAQ	AMSC	Wed, Jul 22, 2009	251.20	257.30	249.80	253.80
4320	NASDAQ	AMSC	Tue, Jul 21, 2009	257.50	260.00	247.90	253.60
4319	NASDAQ	AMSC	Mon, Jul 20, 2009	249.30	260.00	249.30	256.30
4318	NASDAQ	AMSC	Fri, Jul 17, 2009	249.60	251.80	247.10	248.20
4317	NASDAQ	AMSC	Thu, Jul 16, 2009	240.10	251.10	239.10	249.10
4316	NASDAQ	AMSC	Wed, Jul 15, 2009	234.40	242.40	232.20	240.60
4315	NASDAQ	AMSC	Tue, Jul 14, 2009	229.20	235.80	229.20	231.40
4314	NASDAQ	AMSC	Mon, Jul 13, 2009	221.30	229.30	215.40	228.70
4313	NASDAQ	AMSC	Fri, Jul 10, 2009	214.10	224.30	214.10	221.80
4312	NASDAQ	AMSC	Thu, Jul 9, 2009	221.80	225.74	213.20	213.40
4311	NASDAQ	AMSC	Wed, Jul 8, 2009	228.60	230.30	213.10	219.80
4310	NASDAQ	AMSC	Tue, Jul 7, 2009	241.70	244.30	229.00	229.00
4309	NASDAQ	AMSC	Mon, Jul 6, 2009	251.30	251.35	238.70	242.30
4308	NASDAQ	AMSC	Thu, Jul 2, 2009	257.50	258.40	252.60	254.70
4307	NASDAQ	AMSC	Wed, Jul 1, 2009	265.60	274.20	260.40	261.20
4306	NASDAQ	AMSC	Tue, Jun 30, 2009	262.00	272.00	261.70	262.50
4305	NASDAQ	AMSC	Mon, Jun 29, 2009	258.70	266.00	25.00	261.40
4304	NASDAQ	AMSC	Fri, Jun 26, 2009	252.50	261.20	251.90	258.10
4303	NASDAQ	AMSC	Thu, Jun 25, 2009	247.80	257.50	246.20	253.90
4302	NASDAQ	AMSC	Wed, Jun 24, 2009	251.80	257.00	246.30	249.30
4301	NASDAQ	AMSC	Tue, Jun 23, 2009	243.30	251.50	242.50	247.30
4300	NASDAQ	AMSC	Mon, Jun 22, 2009	262.40	262.40	241.40	242.80
4299	NASDAQ	AMSC	Fri, Jun 19, 2009	254.90	275.00	252.70	264.70
4298	NASDAQ	AMSC	Thu, Jun 18, 2009	247.90	257.10	241.00	251.30
4297	NASDAQ	AMSC	Wed, Jun 17, 2009	250.30	253.30	241.60	248.00
4296	NASDAQ	AMSC	Tue, Jun 16, 2009	258.30	264.00	246.50	250.90
4295	NASDAQ	AMSC	Mon, Jun 15, 2009	272.80	272.80	254.00	258.40
4294	NASDAQ	AMSC	Fri, Jun 12, 2009	272.80	279.10	265.40	277.90
4293	NASDAQ	AMSC	Thu, Jun 11, 2009	271.20	281.60	270.50	276.70
4292	NASDAQ	AMSC	Wed, Jun 10, 2009	275.10	277.80	260.60	270.50
4291	NASDAQ	AMSC	Tue, Jun 9, 2009	260.70	275.00	260.70	272.10
4290	NASDAQ	AMSC	Mon, Jun 8, 2009	264.30	265.40	252.70	260.10
4289	NASDAQ	AMSC	Fri, Jun 5, 2009	277.40	277.40	267.40	270.90
4288	NASDAQ	AMSC	Thu, Jun 4, 2009	265.10	274.90	263.00	273.90
4287	NASDAQ	AMSC	Wed, Jun 3, 2009	274.20	281.10	260.00	265.40
4286	NASDAQ	AMSC	Tue, Jun 2, 2009	286.10	302.50	283.00	290.80
4285	NASDAQ	AMSC	Mon, Jun 1, 2009	283.90	299.90	280.00	293.50
4284	NASDAQ	AMSC	Fri, May 29, 2009	263.40	281.10	262.87	278.30
4283	NASDAQ	AMSC	Thu, May 28, 2009	266.90	270.90	254.90	261.50
4282	NASDAQ	AMSC	Wed, May 27, 2009	250.60	269.10	250.00	264.70
4281	NASDAQ	AMSC	Tue, May 26, 2009	230.00	252.20	228.70	250.60
4280	NASDAQ	AMSC	Fri, May 22, 2009	241.30	242.50	231.90	232.20
4279	NASDAQ	AMSC	Thu, May 21, 2009	245.60	248.50	236.50	238.50
4278	NASDAQ	AMSC	Wed, May 20, 2009	253.30	265.00	249.10	251.20
4277	NASDAQ	AMSC	Tue, May 19, 2009	239.10	254.00	236.50	249.90
4276	NASDAQ	AMSC	Mon, May 18, 2009	230.10	242.70	229.00	241.30
4275	NASDAQ	AMSC	Fri, May 15, 2009	231.00	238.20	224.00	228.60
4274	NASDAQ	AMSC	Thu, May 14, 2009	257.10	259.70	232.10	232.10
4273	NASDAQ	AMSC	Wed, May 13, 2009	248.00	250.00	243.60	244.40
4272	NASDAQ	AMSC	Tue, May 12, 2009	252.60	259.60	249.20	252.90
4271	NASDAQ	AMSC	Mon, May 11, 2009	257.50	262.90	250.40	255.00
4270	NASDAQ	AMSC	Fri, May 8, 2009	256.20	257.50	241.40	250.60
4269	NASDAQ	AMSC	Thu, May 7, 2009	273.40	273.40	236.00	238.30
4268	NASDAQ	AMSC	Wed, May 6, 2009	282.50	282.50	271.87	276.70
4267	NASDAQ	AMSC	Tue, May 5, 2009	286.20	289.10	262.80	281.90
4266	NASDAQ	AMSC	Mon, May 4, 2009	275.00	299.90	271.00	295.60
4265	NASDAQ	AMSC	Fri, May 1, 2009	257.50	269.40	257.10	268.50
4264	NASDAQ	AMSC	Thu, Apr 30, 2009	260.00	266.70	251.41	257.00
4263	NASDAQ	AMSC	Wed, Apr 29, 2009	256.90	261.30	252.30	258.30
4262	NASDAQ	AMSC	Tue, Apr 28, 2009	244.60	267.95	241.40	252.30
4261	NASDAQ	AMSC	Mon, Apr 27, 2009	240.15	252.50	233.50	249.10
4260	NASDAQ	AMSC	Fri, Apr 24, 2009	246.00	250.78	233.70	248.40
4259	NASDAQ	AMSC	Thu, Apr 23, 2009	234.40	251.00	229.00	240.40
4258	NASDAQ	AMSC	Wed, Apr 22, 2009	215.90	247.50	211.70	236.10
4257	NASDAQ	AMSC	Tue, Apr 21, 2009	212.80	214.50	209.00	214.30
4256	NASDAQ	AMSC	Mon, Apr 20, 2009	210.00	227.00	200.60	215.50
4255	NASDAQ	AMSC	Fri, Apr 17, 2009	199.10	207.50	194.30	204.40
4254	NASDAQ	AMSC	Thu, Apr 16, 2009	187.50	196.06	184.50	193.60
4253	NASDAQ	AMSC	Wed, Apr 15, 2009	183.10	187.60	181.30	185.70
4252	NASDAQ	AMSC	Tue, Apr 14, 2009	190.00	195.90	181.60	182.50
4251	NASDAQ	AMSC	Mon, Apr 13, 2009	188.50	195.00	182.80	192.20
4250	NASDAQ	AMSC	Thu, Apr 9, 2009	184.20	193.70	182.90	191.50
4249	NASDAQ	AMSC	Wed, Apr 8, 2009	173.40	180.80	171.20	180.60
4248	NASDAQ	AMSC	Tue, Apr 7, 2009	184.80	184.80	172.10	172.40
4247	NASDAQ	AMSC	Mon, Apr 6, 2009	192.40	193.00	183.80	189.80
4246	NASDAQ	AMSC	Fri, Apr 3, 2009	194.70	197.50	186.70	195.80
4245	NASDAQ	AMSC	Thu, Apr 2, 2009	184.90	199.80	183.60	194.80
4244	NASDAQ	AMSC	Wed, Apr 1, 2009	173.00	185.00	169.90	180.00
4243	NASDAQ	AMSC	Tue, Mar 31, 2009	171.40	180.30	163.00	173.10
4242	NASDAQ	AMSC	Mon, Mar 30, 2009	170.70	171.00	158.10	164.70
4241	NASDAQ	AMSC	Fri, Mar 27, 2009	181.10	185.90	170.00	171.00
4240	NASDAQ	AMSC	Thu, Mar 26, 2009	168.90	188.80	168.30	186.50
4239	NASDAQ	AMSC	Wed, Mar 25, 2009	160.70	168.20	158.00	167.90
4238	NASDAQ	AMSC	Tue, Mar 24, 2009	165.50	167.00	158.50	159.70
4237	NASDAQ	AMSC	Mon, Mar 23, 2009	161.60	168.40	160.30	168.40
4236	NASDAQ	AMSC	Fri, Mar 20, 2009	171.60	171.70	154.77	154.80
4235	NASDAQ	AMSC	Thu, Mar 19, 2009	171.60	177.40	169.00	169.20
4234	NASDAQ	AMSC	Wed, Mar 18, 2009	164.70	171.70	160.60	171.00
4233	NASDAQ	AMSC	Tue, Mar 17, 2009	161.40	167.40	154.50	165.40
4232	NASDAQ	AMSC	Mon, Mar 16, 2009	168.20	171.80	161.40	161.90
4231	NASDAQ	AMSC	Fri, Mar 13, 2009	167.70	171.80	157.80	165.00
4230	NASDAQ	AMSC	Thu, Mar 12, 2009	159.90	167.50	156.20	165.50
4229	NASDAQ	AMSC	Wed, Mar 11, 2009	158.90	170.60	156.50	160.10
4228	NASDAQ	AMSC	Tue, Mar 10, 2009	137.40	157.60	136.35	152.90
4227	NASDAQ	AMSC	Mon, Mar 9, 2009	134.00	139.60	129.27	132.80
4226	NASDAQ	AMSC	Fri, Mar 6, 2009	134.80	143.40	129.20	134.50
4225	NASDAQ	AMSC	Thu, Mar 5, 2009	142.40	145.60	130.00	132.80
4224	NASDAQ	AMSC	Wed, Mar 4, 2009	132.10	149.80	132.10	145.70
4223	NASDAQ	AMSC	Tue, Mar 3, 2009	123.70	131.60	121.10	129.40
4222	NASDAQ	AMSC	Mon, Mar 2, 2009	130.20	132.40	116.60	123.10
4221	NASDAQ	AMSC	Fri, Feb 27, 2009	145.60	147.50	130.23	134.60
4220	NASDAQ	AMSC	Thu, Feb 26, 2009	154.20	156.26	147.80	149.70
4219	NASDAQ	AMSC	Wed, Feb 25, 2009	160.40	162.80	148.70	151.90
4218	NASDAQ	AMSC	Tue, Feb 24, 2009	150.40	163.00	150.00	161.70
4217	NASDAQ	AMSC	Mon, Feb 23, 2009	169.00	170.00	150.10	150.40
4216	NASDAQ	AMSC	Fri, Feb 20, 2009	170.20	170.40	155.10	168.80
4215	NASDAQ	AMSC	Thu, Feb 19, 2009	187.40	187.40	170.80	171.00
4214	NASDAQ	AMSC	Wed, Feb 18, 2009	183.20	186.00	176.90	181.70
4213	NASDAQ	AMSC	Tue, Feb 17, 2009	184.50	187.00	178.20	182.00
4212	NASDAQ	AMSC	Fri, Feb 13, 2009	183.00	189.48	180.30	187.00
4211	NASDAQ	AMSC	Thu, Feb 12, 2009	180.70	185.00	175.00	183.40
4210	NASDAQ	AMSC	Wed, Feb 11, 2009	179.50	184.26	175.00	180.40
4209	NASDAQ	AMSC	Tue, Feb 10, 2009	188.30	190.30	176.90	177.70
4208	NASDAQ	AMSC	Mon, Feb 9, 2009	182.40	195.80	182.10	185.50
4207	NASDAQ	AMSC	Fri, Feb 6, 2009	169.40	188.60	169.00	182.10
4206	NASDAQ	AMSC	Thu, Feb 5, 2009	158.80	171.00	158.10	169.10
4205	NASDAQ	AMSC	Wed, Feb 4, 2009	170.00	171.90	160.00	161.40
4204	NASDAQ	AMSC	Tue, Feb 3, 2009	167.50	172.70	159.00	165.60
4203	NASDAQ	AMSC	Mon, Feb 2, 2009	165.00	165.00	150.70	159.80
4202	NASDAQ	AMSC	Fri, Jan 30, 2009	171.90	172.40	157.80	161.80
4201	NASDAQ	AMSC	Thu, Jan 29, 2009	169.40	172.00	163.00	168.00
4200	NASDAQ	AMSC	Wed, Jan 28, 2009	168.30	171.00	162.20	169.50
4199	NASDAQ	AMSC	Tue, Jan 27, 2009	161.90	165.50	160.00	163.70
4198	NASDAQ	AMSC	Mon, Jan 26, 2009	164.80	165.00	155.00	160.60
4197	NASDAQ	AMSC	Fri, Jan 23, 2009	153.00	162.00	148.00	155.00
4196	NASDAQ	AMSC	Thu, Jan 22, 2009	166.50	169.70	151.50	154.10
4195	NASDAQ	AMSC	Wed, Jan 21, 2009	152.10	168.50	150.50	164.00
4194	NASDAQ	AMSC	Tue, Jan 20, 2009	175.40	177.00	168.00	171.90
4193	NASDAQ	AMSC	Fri, Jan 16, 2009	175.00	177.60	161.70	171.80
4192	NASDAQ	AMSC	Thu, Jan 15, 2009	151.50	168.30	148.90	166.80
4191	NASDAQ	AMSC	Wed, Jan 14, 2009	164.50	164.50	150.00	150.90
4190	NASDAQ	AMSC	Tue, Jan 13, 2009	160.10	169.90	160.00	166.00
4189	NASDAQ	AMSC	Mon, Jan 12, 2009	178.60	178.60	157.50	159.00
4188	NASDAQ	AMSC	Fri, Jan 9, 2009	181.60	184.10	173.40	174.10
4187	NASDAQ	AMSC	Thu, Jan 8, 2009	179.00	185.20	168.50	181.00
4186	NASDAQ	AMSC	Wed, Jan 7, 2009	187.00	187.30	175.20	177.80
4185	NASDAQ	AMSC	Tue, Jan 6, 2009	181.10	192.50	179.00	187.00
4184	NASDAQ	AMSC	Mon, Jan 5, 2009	170.40	176.70	165.00	174.50
4183	NASDAQ	AMSC	Fri, Jan 2, 2009	163.50	173.40	163.10	171.50
4182	NASDAQ	AMSC	Wed, Dec 31, 2008	155.80	165.00	155.80	163.10
4181	NASDAQ	AMSC	Tue, Dec 30, 2008	160.90	163.00	155.50	155.60
4180	NASDAQ	AMSC	Mon, Dec 29, 2008	167.30	168.70	151.50	157.50
4179	NASDAQ	AMSC	Fri, Dec 26, 2008	166.80	169.90	163.00	168.80
4178	NASDAQ	AMSC	Wed, Dec 24, 2008	166.40	168.60	161.50	166.10
4177	NASDAQ	AMSC	Tue, Dec 23, 2008	166.00	174.70	161.10	165.20
4176	NASDAQ	AMSC	Mon, Dec 22, 2008	160.00	168.20	152.60	160.60
4175	NASDAQ	AMSC	Fri, Dec 19, 2008	169.30	169.90	158.60	164.50
4174	NASDAQ	AMSC	Thu, Dec 18, 2008	158.90	168.20	155.50	159.90
4173	NASDAQ	AMSC	Wed, Dec 17, 2008	156.10	163.20	152.10	158.30
4172	NASDAQ	AMSC	Tue, Dec 16, 2008	146.60	158.50	141.30	157.40
4171	NASDAQ	AMSC	Mon, Dec 15, 2008	152.20	156.40	137.50	143.20
4170	NASDAQ	AMSC	Fri, Dec 12, 2008	136.10	152.40	136.00	150.20
4169	NASDAQ	AMSC	Thu, Dec 11, 2008	152.50	154.00	137.35	140.10
4168	NASDAQ	AMSC	Wed, Dec 10, 2008	152.40	159.50	147.80	155.00
4167	NASDAQ	AMSC	Tue, Dec 9, 2008	160.30	167.40	148.00	150.20
4166	NASDAQ	AMSC	Mon, Dec 8, 2008	150.10	164.90	150.00	161.30
4165	NASDAQ	AMSC	Fri, Dec 5, 2008	128.00	147.20	125.00	143.30
4164	NASDAQ	AMSC	Thu, Dec 4, 2008	134.20	149.30	122.50	127.30
4163	NASDAQ	AMSC	Wed, Dec 3, 2008	121.30	135.10	118.20	132.70
4162	NASDAQ	AMSC	Tue, Dec 2, 2008	114.50	125.40	108.80	125.00
4161	NASDAQ	AMSC	Mon, Dec 1, 2008	127.50	130.00	109.20	110.20
4160	NASDAQ	AMSC	Fri, Nov 28, 2008	137.80	140.00	125.10	130.90
4159	NASDAQ	AMSC	Wed, Nov 26, 2008	112.30	141.50	111.20	139.10
4158	NASDAQ	AMSC	Tue, Nov 25, 2008	118.90	119.90	106.00	115.70
4157	NASDAQ	AMSC	Mon, Nov 24, 2008	98.50	119.70	97.30	117.20
4156	NASDAQ	AMSC	Fri, Nov 21, 2008	87.80	100.00	82.20	96.70
4155	NASDAQ	AMSC	Thu, Nov 20, 2008	89.90	97.80	82.50	85.50
4154	NASDAQ	AMSC	Wed, Nov 19, 2008	101.70	102.80	90.50	90.80
4153	NASDAQ	AMSC	Tue, Nov 18, 2008	103.50	109.50	98.00	102.00
4152	NASDAQ	AMSC	Mon, Nov 17, 2008	107.10	109.00	100.00	102.80
4151	NASDAQ	AMSC	Fri, Nov 14, 2008	117.80	122.60	108.50	109.20
4150	NASDAQ	AMSC	Thu, Nov 13, 2008	110.10	121.10	98.50	120.50
4149	NASDAQ	AMSC	Wed, Nov 12, 2008	125.20	128.20	108.54	109.80
4148	NASDAQ	AMSC	Tue, Nov 11, 2008	134.60	134.60	124.40	127.50
4147	NASDAQ	AMSC	Mon, Nov 10, 2008	142.30	147.70	132.00	136.10
4146	NASDAQ	AMSC	Fri, Nov 7, 2008	133.00	139.90	129.70	137.70
4145	NASDAQ	AMSC	Thu, Nov 6, 2008	141.50	146.80	125.10	128.30
4144	NASDAQ	AMSC	Wed, Nov 5, 2008	153.00	161.49	139.30	142.50
4143	NASDAQ	AMSC	Tue, Nov 4, 2008	140.30	167.30	140.00	154.30
4142	NASDAQ	AMSC	Mon, Nov 3, 2008	119.70	137.90	119.70	132.40
4141	NASDAQ	AMSC	Fri, Oct 31, 2008	124.30	128.50	117.70	125.10
4140	NASDAQ	AMSC	Thu, Oct 30, 2008	115.60	125.00	113.60	124.30
4139	NASDAQ	AMSC	Wed, Oct 29, 2008	104.10	122.40	101.80	110.20
4138	NASDAQ	AMSC	Tue, Oct 28, 2008	107.00	110.10	92.60	103.65
4137	NASDAQ	AMSC	Mon, Oct 27, 2008	109.20	114.80	98.30	99.00
4136	NASDAQ	AMSC	Fri, Oct 24, 2008	107.00	112.90	96.20	111.20
4135	NASDAQ	AMSC	Thu, Oct 23, 2008	132.70	134.70	112.80	116.60
4134	NASDAQ	AMSC	Wed, Oct 22, 2008	147.60	148.40	127.30	132.00
4133	NASDAQ	AMSC	Tue, Oct 21, 2008	160.80	162.50	150.20	151.00
4132	NASDAQ	AMSC	Mon, Oct 20, 2008	154.10	163.00	148.20	161.60
4131	NASDAQ	AMSC	Fri, Oct 17, 2008	144.00	163.20	136.30	152.00
4130	NASDAQ	AMSC	Thu, Oct 16, 2008	131.70	152.20	120.10	149.60
4129	NASDAQ	AMSC	Wed, Oct 15, 2008	150.00	159.80	128.30	130.20
4128	NASDAQ	AMSC	Tue, Oct 14, 2008	170.00	171.20	147.50	149.90
4127	NASDAQ	AMSC	Mon, Oct 13, 2008	138.00	169.10	135.00	162.30
4126	NASDAQ	AMSC	Fri, Oct 10, 2008	126.10	139.40	110.60	130.10
4125	NASDAQ	AMSC	Thu, Oct 9, 2008	144.60	147.90	121.00	129.30
4124	NASDAQ	AMSC	Wed, Oct 8, 2008	126.30	154.70	117.50	142.00
4123	NASDAQ	AMSC	Tue, Oct 7, 2008	151.00	156.90	131.50	132.20
4122	NASDAQ	AMSC	Mon, Oct 6, 2008	176.00	177.80	133.00	149.90
4121	NASDAQ	AMSC	Fri, Oct 3, 2008	194.50	209.40	183.60	185.10
4120	NASDAQ	AMSC	Thu, Oct 2, 2008	218.10	221.50	190.00	194.00
4119	NASDAQ	AMSC	Wed, Oct 1, 2008	239.50	241.60	219.00	219.70
4118	NASDAQ	AMSC	Tue, Sep 30, 2008	240.50	241.80	220.60	235.70
4117	NASDAQ	AMSC	Mon, Sep 29, 2008	215.80	246.90	195.80	246.90
4116	NASDAQ	AMSC	Fri, Sep 26, 2008	218.10	225.00	212.60	221.10
4115	NASDAQ	AMSC	Thu, Sep 25, 2008	214.20	224.80	214.20	223.90
4114	NASDAQ	AMSC	Wed, Sep 24, 2008	223.60	227.35	213.40	214.20
4113	NASDAQ	AMSC	Tue, Sep 23, 2008	215.70	224.80	206.50	221.90
4112	NASDAQ	AMSC	Mon, Sep 22, 2008	233.00	234.20	214.54	220.50
4111	NASDAQ	AMSC	Fri, Sep 19, 2008	232.00	250.00	200.60	237.60
4110	NASDAQ	AMSC	Thu, Sep 18, 2008	176.40	211.60	175.72	211.00
4109	NASDAQ	AMSC	Wed, Sep 17, 2008	170.90	185.80	164.50	174.60
4108	NASDAQ	AMSC	Tue, Sep 16, 2008	166.70	175.00	159.40	171.10
4107	NASDAQ	AMSC	Mon, Sep 15, 2008	181.90	186.00	168.00	170.30
4106	NASDAQ	AMSC	Fri, Sep 12, 2008	185.70	198.20	182.20	187.50
4105	NASDAQ	AMSC	Thu, Sep 11, 2008	187.50	191.60	176.00	189.30
4104	NASDAQ	AMSC	Wed, Sep 10, 2008	197.60	200.90	185.70	189.60
4103	NASDAQ	AMSC	Tue, Sep 9, 2008	222.30	222.30	192.30	195.40
4102	NASDAQ	AMSC	Mon, Sep 8, 2008	222.40	232.10	206.00	217.40
4101	NASDAQ	AMSC	Fri, Sep 5, 2008	224.20	224.40	210.30	218.30
4100	NASDAQ	AMSC	Thu, Sep 4, 2008	240.00	241.00	214.10	226.00
4099	NASDAQ	AMSC	Wed, Sep 3, 2008	241.40	246.00	235.00	237.40
4098	NASDAQ	AMSC	Tue, Sep 2, 2008	249.90	253.30	239.90	243.00
4097	NASDAQ	AMSC	Fri, Aug 29, 2008	251.10	254.40	243.10	245.70
4096	NASDAQ	AMSC	Thu, Aug 28, 2008	251.50	252.50	245.30	251.20
4095	NASDAQ	AMSC	Wed, Aug 27, 2008	242.20	253.50	241.30	251.10
4094	NASDAQ	AMSC	Tue, Aug 26, 2008	244.40	245.40	239.60	240.90
4093	NASDAQ	AMSC	Mon, Aug 25, 2008	253.10	255.50	237.30	239.50
4092	NASDAQ	AMSC	Fri, Aug 22, 2008	253.10	255.50	248.50	254.90
4091	NASDAQ	AMSC	Thu, Aug 21, 2008	246.70	257.40	245.00	252.60
4090	NASDAQ	AMSC	Wed, Aug 20, 2008	241.00	258.00	241.00	251.10
4089	NASDAQ	AMSC	Tue, Aug 19, 2008	245.40	246.41	237.00	240.00
4088	NASDAQ	AMSC	Mon, Aug 18, 2008	260.10	263.80	244.40	247.20
4087	NASDAQ	AMSC	Fri, Aug 15, 2008	266.30	268.00	252.90	259.60
4086	NASDAQ	AMSC	Thu, Aug 14, 2008	257.00	266.20	252.50	261.40
4085	NASDAQ	AMSC	Wed, Aug 13, 2008	266.00	268.00	252.70	257.80
4084	NASDAQ	AMSC	Tue, Aug 12, 2008	267.00	276.30	253.30	268.10
4083	NASDAQ	AMSC	Mon, Aug 11, 2008	260.00	272.00	257.00	264.80
4082	NASDAQ	AMSC	Fri, Aug 8, 2008	285.20	285.20	256.30	260.00
4081	NASDAQ	AMSC	Thu, Aug 7, 2008	284.70	289.40	276.60	282.00
4080	NASDAQ	AMSC	Wed, Aug 6, 2008	305.60	313.70	285.00	286.90
4079	NASDAQ	AMSC	Tue, Aug 5, 2008	322.20	340.20	295.00	309.30
4078	NASDAQ	AMSC	Mon, Aug 4, 2008	379.90	385.20	347.00	360.70
4077	NASDAQ	AMSC	Fri, Aug 1, 2008	393.90	399.00	370.00	378.70
4076	NASDAQ	AMSC	Thu, Jul 31, 2008	381.90	400.00	380.00	394.90
4075	NASDAQ	AMSC	Wed, Jul 30, 2008	375.00	382.50	373.80	381.90
4074	NASDAQ	AMSC	Tue, Jul 29, 2008	361.90	374.00	361.30	371.30
4073	NASDAQ	AMSC	Mon, Jul 28, 2008	363.80	367.50	350.30	361.40
4072	NASDAQ	AMSC	Fri, Jul 25, 2008	357.50	365.00	347.60	352.50
4071	NASDAQ	AMSC	Thu, Jul 24, 2008	350.00	356.50	340.10	350.60
4070	NASDAQ	AMSC	Wed, Jul 23, 2008	384.00	385.60	343.30	345.60
4069	NASDAQ	AMSC	Tue, Jul 22, 2008	379.60	388.30	363.00	384.40
4068	NASDAQ	AMSC	Mon, Jul 21, 2008	366.50	382.30	363.60	380.10
4067	NASDAQ	AMSC	Fri, Jul 18, 2008	335.50	370.00	330.00	359.00
4066	NASDAQ	AMSC	Thu, Jul 17, 2008	329.40	339.50	320.50	332.00
4065	NASDAQ	AMSC	Wed, Jul 16, 2008	323.30	330.00	312.70	327.00
4064	NASDAQ	AMSC	Tue, Jul 15, 2008	318.50	325.70	301.10	315.70
4063	NASDAQ	AMSC	Mon, Jul 14, 2008	321.40	331.70	316.00	321.50
4062	NASDAQ	AMSC	Fri, Jul 11, 2008	318.10	332.40	309.95	322.40
4061	NASDAQ	AMSC	Thu, Jul 10, 2008	320.00	329.10	308.70	324.00
4060	NASDAQ	AMSC	Wed, Jul 9, 2008	321.10	334.09	311.10	312.30
4059	NASDAQ	AMSC	Tue, Jul 8, 2008	316.90	319.90	300.50	313.10
4058	NASDAQ	AMSC	Mon, Jul 7, 2008	317.30	329.80	307.50	316.80
4057	NASDAQ	AMSC	Thu, Jul 3, 2008	334.50	344.10	318.70	319.80
4056	NASDAQ	AMSC	Wed, Jul 2, 2008	358.10	358.90	331.20	336.50
4055	NASDAQ	AMSC	Tue, Jul 1, 2008	348.70	365.00	345.20	353.80
4054	NASDAQ	AMSC	Mon, Jun 30, 2008	352.10	367.90	351.00	358.50
4053	NASDAQ	AMSC	Fri, Jun 27, 2008	375.60	378.90	346.70	350.30
4052	NASDAQ	AMSC	Thu, Jun 26, 2008	401.00	401.00	370.50	379.90
4051	NASDAQ	AMSC	Wed, Jun 25, 2008	426.30	426.30	390.41	404.60
4050	NASDAQ	AMSC	Tue, Jun 24, 2008	441.50	475.30	418.00	419.10
4049	NASDAQ	AMSC	Mon, Jun 23, 2008	426.00	444.30	421.60	439.00
4048	NASDAQ	AMSC	Fri, Jun 20, 2008	449.00	450.00	424.00	425.50
4047	NASDAQ	AMSC	Thu, Jun 19, 2008	422.50	450.00	415.70	440.20
4046	NASDAQ	AMSC	Wed, Jun 18, 2008	421.10	428.10	411.10	426.60
4045	NASDAQ	AMSC	Tue, Jun 17, 2008	427.00	438.10	425.40	430.60
4044	NASDAQ	AMSC	Mon, Jun 16, 2008	416.50	438.90	410.00	425.30
4043	NASDAQ	AMSC	Fri, Jun 13, 2008	400.00	421.50	395.00	416.50
4042	NASDAQ	AMSC	Thu, Jun 12, 2008	449.00	455.00	396.10	410.90
4041	NASDAQ	AMSC	Wed, Jun 11, 2008	425.00	451.60	417.50	439.20
4040	NASDAQ	AMSC	Tue, Jun 10, 2008	420.00	450.00	405.90	431.10
4039	NASDAQ	AMSC	Mon, Jun 9, 2008	358.00	367.30	350.00	360.80
4038	NASDAQ	AMSC	Fri, Jun 6, 2008	367.90	395.00	359.50	359.60
4037	NASDAQ	AMSC	Thu, Jun 5, 2008	347.10	365.00	347.10	361.90
4036	NASDAQ	AMSC	Wed, Jun 4, 2008	346.40	352.00	342.90	347.10
4035	NASDAQ	AMSC	Tue, Jun 3, 2008	341.80	354.50	341.80	346.10
4034	NASDAQ	AMSC	Mon, Jun 2, 2008	353.10	353.10	335.00	344.50
4033	NASDAQ	AMSC	Fri, May 30, 2008	354.30	358.10	343.50	352.80
4032	NASDAQ	AMSC	Thu, May 29, 2008	349.10	369.80	343.50	350.70
4031	NASDAQ	AMSC	Wed, May 28, 2008	322.10	355.30	321.00	346.60
4030	NASDAQ	AMSC	Tue, May 27, 2008	310.00	335.00	309.20	315.40
4029	NASDAQ	AMSC	Fri, May 23, 2008	301.50	312.43	300.20	309.10
4028	NASDAQ	AMSC	Thu, May 22, 2008	298.20	303.10	292.60	300.10
4027	NASDAQ	AMSC	Wed, May 21, 2008	303.90	312.50	294.30	298.50
4026	NASDAQ	AMSC	Tue, May 20, 2008	305.40	309.50	297.50	301.60
4025	NASDAQ	AMSC	Mon, May 19, 2008	308.20	324.20	299.50	303.30
4024	NASDAQ	AMSC	Fri, May 16, 2008	296.80	311.50	290.10	308.30
4023	NASDAQ	AMSC	Thu, May 15, 2008	293.60	299.80	290.00	294.60
4022	NASDAQ	AMSC	Wed, May 14, 2008	276.80	306.40	276.80	294.10
4021	NASDAQ	AMSC	Tue, May 13, 2008	293.80	294.10	272.80	277.60
4020	NASDAQ	AMSC	Mon, May 12, 2008	303.50	304.40	285.80	289.40
4019	NASDAQ	AMSC	Fri, May 9, 2008	307.70	319.90	293.00	298.60
4018	NASDAQ	AMSC	Thu, May 8, 2008	274.20	334.10	270.50	327.70
4017	NASDAQ	AMSC	Wed, May 7, 2008	265.00	265.00	241.60	246.70
4016	NASDAQ	AMSC	Tue, May 6, 2008	254.80	265.00	251.60	262.80
4015	NASDAQ	AMSC	Mon, May 5, 2008	261.50	265.60	254.30	255.70
4014	NASDAQ	AMSC	Fri, May 2, 2008	265.90	267.00	255.10	261.00
4013	NASDAQ	AMSC	Thu, May 1, 2008	253.10	267.00	251.00	260.90
4012	NASDAQ	AMSC	Wed, Apr 30, 2008	256.10	261.10	251.00	252.80
4011	NASDAQ	AMSC	Tue, Apr 29, 2008	263.60	264.60	253.70	255.00
4010	NASDAQ	AMSC	Mon, Apr 28, 2008	262.40	270.00	259.60	263.90
4009	NASDAQ	AMSC	Fri, Apr 25, 2008	259.30	267.10	255.20	263.20
4008	NASDAQ	AMSC	Thu, Apr 24, 2008	261.00	265.20	251.50	258.20
4007	NASDAQ	AMSC	Wed, Apr 23, 2008	269.80	269.80	256.00	260.20
4006	NASDAQ	AMSC	Tue, Apr 22, 2008	274.40	274.40	264.10	268.10
4005	NASDAQ	AMSC	Mon, Apr 21, 2008	267.90	271.00	265.00	269.40
4004	NASDAQ	AMSC	Fri, Apr 18, 2008	267.50	272.70	262.90	269.60
4003	NASDAQ	AMSC	Thu, Apr 17, 2008	264.20	270.30	258.10	261.10
4002	NASDAQ	AMSC	Wed, Apr 16, 2008	255.70	266.60	255.10	263.30
4001	NASDAQ	AMSC	Tue, Apr 15, 2008	251.40	252.90	243.20	252.70
4000	NASDAQ	AMSC	Mon, Apr 14, 2008	243.30	255.10	239.10	248.70
3999	NASDAQ	AMSC	Fri, Apr 11, 2008	250.00	253.00	239.30	243.80
3998	NASDAQ	AMSC	Thu, Apr 10, 2008	253.70	259.60	247.05	253.50
3997	NASDAQ	AMSC	Wed, Apr 9, 2008	255.70	259.00	249.10	252.80
3996	NASDAQ	AMSC	Tue, Apr 8, 2008	251.70	259.10	250.00	255.90
3995	NASDAQ	AMSC	Mon, Apr 7, 2008	257.60	264.00	253.10	254.10
3994	NASDAQ	AMSC	Fri, Apr 4, 2008	254.50	259.00	248.20	255.30
3993	NASDAQ	AMSC	Thu, Apr 3, 2008	247.80	254.40	243.10	252.00
3992	NASDAQ	AMSC	Wed, Apr 2, 2008	243.10	258.40	242.50	250.00
3991	NASDAQ	AMSC	Tue, Apr 1, 2008	231.90	239.90	230.30	239.70
3990	NASDAQ	AMSC	Mon, Mar 31, 2008	235.20	239.50	229.10	231.90
3989	NASDAQ	AMSC	Fri, Mar 28, 2008	244.90	250.00	234.00	235.40
3988	NASDAQ	AMSC	Thu, Mar 27, 2008	240.40	252.50	236.00	244.10
3987	NASDAQ	AMSC	Wed, Mar 26, 2008	248.00	249.80	238.80	239.70
3986	NASDAQ	AMSC	Tue, Mar 25, 2008	249.20	253.60	246.40	249.70
3985	NASDAQ	AMSC	Mon, Mar 24, 2008	233.00	250.80	232.80	247.10
3984	NASDAQ	AMSC	Thu, Mar 20, 2008	246.60	246.60	230.90	233.00
3983	NASDAQ	AMSC	Wed, Mar 19, 2008	248.80	255.60	235.10	235.20
3982	NASDAQ	AMSC	Tue, Mar 18, 2008	246.10	247.90	231.70	247.40
3981	NASDAQ	AMSC	Mon, Mar 17, 2008	232.10	242.60	226.50	239.90
3980	NASDAQ	AMSC	Fri, Mar 14, 2008	241.40	243.65	230.00	239.80
3979	NASDAQ	AMSC	Thu, Mar 13, 2008	230.90	241.10	220.00	239.80
3978	NASDAQ	AMSC	Wed, Mar 12, 2008	229.70	242.90	229.30	235.80
3977	NASDAQ	AMSC	Tue, Mar 11, 2008	219.00	228.70	214.80	228.50
3976	NASDAQ	AMSC	Mon, Mar 10, 2008	219.50	222.50	210.00	211.80
3975	NASDAQ	AMSC	Fri, Mar 7, 2008	225.40	232.40	213.80	218.30
3974	NASDAQ	AMSC	Thu, Mar 6, 2008	245.90	246.90	228.30	228.80
3973	NASDAQ	AMSC	Wed, Mar 5, 2008	231.30	247.80	231.30	244.30
3972	NASDAQ	AMSC	Tue, Mar 4, 2008	222.10	232.00	220.00	229.90
3971	NASDAQ	AMSC	Mon, Mar 3, 2008	225.60	228.10	216.30	224.90
3970	NASDAQ	AMSC	Fri, Feb 29, 2008	229.10	237.50	223.60	225.90
3969	NASDAQ	AMSC	Thu, Feb 28, 2008	221.00	234.10	219.00	228.90
3968	NASDAQ	AMSC	Wed, Feb 27, 2008	205.10	221.70	203.29	219.50
3967	NASDAQ	AMSC	Tue, Feb 26, 2008	198.50	207.80	198.10	207.50
3966	NASDAQ	AMSC	Mon, Feb 25, 2008	192.00	202.00	190.00	200.30
3965	NASDAQ	AMSC	Fri, Feb 22, 2008	195.60	197.10	185.50	192.30
3964	NASDAQ	AMSC	Thu, Feb 21, 2008	204.00	209.00	193.20	194.90
3963	NASDAQ	AMSC	Wed, Feb 20, 2008	199.40	203.70	194.30	202.70
3962	NASDAQ	AMSC	Tue, Feb 19, 2008	208.40	211.30	198.80	201.00
3961	NASDAQ	AMSC	Fri, Feb 15, 2008	212.20	213.40	200.00	203.00
3960	NASDAQ	AMSC	Thu, Feb 14, 2008	230.90	235.90	212.80	213.30
3959	NASDAQ	AMSC	Wed, Feb 13, 2008	208.80	224.50	207.20	222.20
3958	NASDAQ	AMSC	Tue, Feb 12, 2008	203.50	213.40	203.50	206.40
3957	NASDAQ	AMSC	Mon, Feb 11, 2008	196.10	205.00	192.00	201.60
3956	NASDAQ	AMSC	Fri, Feb 8, 2008	199.60	200.60	191.00	194.30
3955	NASDAQ	AMSC	Thu, Feb 7, 2008	192.10	202.50	190.40	196.80
3954	NASDAQ	AMSC	Wed, Feb 6, 2008	213.80	215.40	195.90	196.40
3953	NASDAQ	AMSC	Tue, Feb 5, 2008	224.40	228.90	209.10	209.80
3952	NASDAQ	AMSC	Mon, Feb 4, 2008	219.80	235.70	219.80	228.60
3951	NASDAQ	AMSC	Fri, Feb 1, 2008	203.00	218.00	201.60	215.80
3950	NASDAQ	AMSC	Thu, Jan 31, 2008	200.30	204.70	189.50	202.50
3949	NASDAQ	AMSC	Wed, Jan 30, 2008	191.00	199.80	184.10	194.50
3948	NASDAQ	AMSC	Tue, Jan 29, 2008	198.60	202.00	190.60	193.10
3947	NASDAQ	AMSC	Mon, Jan 28, 2008	190.20	191.70	182.50	186.30
3946	NASDAQ	AMSC	Fri, Jan 25, 2008	187.80	199.00	185.00	191.00
3945	NASDAQ	AMSC	Thu, Jan 24, 2008	195.00	197.00	184.40	184.40
3944	NASDAQ	AMSC	Wed, Jan 23, 2008	181.80	195.00	169.70	192.60
3943	NASDAQ	AMSC	Tue, Jan 22, 2008	173.30	191.10	155.10	186.00
3942	NASDAQ	AMSC	Fri, Jan 18, 2008	188.90	190.90	180.90	183.10
3941	NASDAQ	AMSC	Thu, Jan 17, 2008	217.30	218.40	187.50	189.50
3940	NASDAQ	AMSC	Wed, Jan 16, 2008	224.60	234.40	209.60	214.30
3939	NASDAQ	AMSC	Tue, Jan 15, 2008	235.30	235.30	222.50	225.60
3938	NASDAQ	AMSC	Mon, Jan 14, 2008	233.30	244.20	232.20	238.40
3937	NASDAQ	AMSC	Fri, Jan 11, 2008	239.00	247.00	228.60	231.30
3936	NASDAQ	AMSC	Thu, Jan 10, 2008	249.30	249.30	234.20	240.40
3935	NASDAQ	AMSC	Wed, Jan 9, 2008	251.00	254.30	231.60	251.70
3934	NASDAQ	AMSC	Tue, Jan 8, 2008	259.30	266.20	249.00	249.00
3933	NASDAQ	AMSC	Mon, Jan 7, 2008	262.70	271.80	246.60	255.90
3932	NASDAQ	AMSC	Fri, Jan 4, 2008	281.60	282.60	260.00	262.00
3931	NASDAQ	AMSC	Thu, Jan 3, 2008	275.00	293.00	272.90	284.80
3930	NASDAQ	AMSC	Wed, Jan 2, 2008	274.60	286.90	267.40	275.30
3929	NASDAQ	AMSC	Mon, Dec 31, 2007	289.20	294.30	273.40	273.40
3928	NASDAQ	AMSC	Fri, Dec 28, 2007	312.20	318.40	288.50	289.80
3927	NASDAQ	AMSC	Thu, Dec 27, 2007	319.00	321.80	304.20	305.20
3926	NASDAQ	AMSC	Wed, Dec 26, 2007	304.90	327.40	301.40	320.40
3925	NASDAQ	AMSC	Mon, Dec 24, 2007	299.00	306.30	286.40	305.90
3924	NASDAQ	AMSC	Fri, Dec 21, 2007	281.10	300.50	278.70	300.50
3923	NASDAQ	AMSC	Thu, Dec 20, 2007	270.00	280.00	265.90	278.50
3922	NASDAQ	AMSC	Wed, Dec 19, 2007	256.90	274.00	248.80	271.20
3921	NASDAQ	AMSC	Tue, Dec 18, 2007	242.00	262.50	240.00	257.00
3920	NASDAQ	AMSC	Mon, Dec 17, 2007	266.60	268.20	237.20	238.10
3919	NASDAQ	AMSC	Fri, Dec 14, 2007	259.70	272.00	255.40	267.20
3918	NASDAQ	AMSC	Thu, Dec 13, 2007	261.00	268.40	252.50	260.40
3917	NASDAQ	AMSC	Wed, Dec 12, 2007	263.50	270.00	255.50	263.70
3916	NASDAQ	AMSC	Tue, Dec 11, 2007	270.10	276.90	254.70	255.50
3915	NASDAQ	AMSC	Mon, Dec 10, 2007	270.30	278.20	267.90	269.30
3914	NASDAQ	AMSC	Fri, Dec 7, 2007	272.10	275.00	260.70	270.70
3913	NASDAQ	AMSC	Thu, Dec 6, 2007	255.20	272.50	254.70	270.80
3912	NASDAQ	AMSC	Wed, Dec 5, 2007	244.90	258.50	244.50	256.10
3911	NASDAQ	AMSC	Tue, Dec 4, 2007	240.50	246.90	236.40	239.30
3910	NASDAQ	AMSC	Mon, Dec 3, 2007	239.60	247.50	234.60	243.10
3909	NASDAQ	AMSC	Fri, Nov 30, 2007	250.00	256.20	234.90	241.40
3908	NASDAQ	AMSC	Thu, Nov 29, 2007	233.70	249.70	230.00	246.30
3907	NASDAQ	AMSC	Wed, Nov 28, 2007	219.00	235.00	218.30	233.80
3906	NASDAQ	AMSC	Tue, Nov 27, 2007	215.00	218.90	211.10	216.60
3905	NASDAQ	AMSC	Mon, Nov 26, 2007	217.30	228.70	213.40	213.90
3904	NASDAQ	AMSC	Fri, Nov 23, 2007	209.40	217.50	209.00	216.00
3903	NASDAQ	AMSC	Wed, Nov 21, 2007	222.00	222.00	206.20	206.20
3902	NASDAQ	AMSC	Tue, Nov 20, 2007	234.40	242.50	217.40	224.50
3901	NASDAQ	AMSC	Mon, Nov 19, 2007	256.00	256.00	234.90	235.10
3900	NASDAQ	AMSC	Fri, Nov 16, 2007	253.90	260.00	246.40	258.90
3899	NASDAQ	AMSC	Thu, Nov 15, 2007	254.90	269.50	248.20	252.60
3898	NASDAQ	AMSC	Wed, Nov 14, 2007	257.80	261.10	252.40	254.90
3897	NASDAQ	AMSC	Tue, Nov 13, 2007	243.40	258.70	240.10	255.10
3896	NASDAQ	AMSC	Mon, Nov 12, 2007	260.20	263.00	237.50	240.60
3895	NASDAQ	AMSC	Fri, Nov 9, 2007	283.90	283.90	258.50	260.90
3894	NASDAQ	AMSC	Thu, Nov 8, 2007	288.40	309.60	281.00	287.30
3893	NASDAQ	AMSC	Wed, Nov 7, 2007	281.30	288.80	279.20	284.40
3892	NASDAQ	AMSC	Tue, Nov 6, 2007	264.20	288.70	263.00	287.70
3891	NASDAQ	AMSC	Mon, Nov 5, 2007	256.60	267.10	255.90	265.70
3890	NASDAQ	AMSC	Fri, Nov 2, 2007	251.70	262.00	249.50	261.30
3889	NASDAQ	AMSC	Thu, Nov 1, 2007	263.40	274.00	236.20	251.70
3888	NASDAQ	AMSC	Wed, Oct 31, 2007	276.50	279.40	262.90	271.50
3887	NASDAQ	AMSC	Tue, Oct 30, 2007	277.00	279.50	272.80	276.70
3886	NASDAQ	AMSC	Mon, Oct 29, 2007	282.50	283.00	271.10	279.20
3885	NASDAQ	AMSC	Fri, Oct 26, 2007	275.00	282.80	269.00	282.50
3884	NASDAQ	AMSC	Thu, Oct 25, 2007	270.00	275.00	265.10	271.60
3883	NASDAQ	AMSC	Wed, Oct 24, 2007	266.90	271.70	258.40	268.70
3882	NASDAQ	AMSC	Tue, Oct 23, 2007	270.00	277.00	261.80	268.40
3881	NASDAQ	AMSC	Mon, Oct 22, 2007	255.00	267.70	250.40	266.70
3880	NASDAQ	AMSC	Fri, Oct 19, 2007	259.20	261.50	255.30	258.10
3879	NASDAQ	AMSC	Thu, Oct 18, 2007	248.00	260.60	245.80	258.50
3878	NASDAQ	AMSC	Wed, Oct 17, 2007	249.10	256.50	242.20	249.00
3877	NASDAQ	AMSC	Tue, Oct 16, 2007	246.20	249.30	240.60	241.90
3876	NASDAQ	AMSC	Mon, Oct 15, 2007	256.10	260.00	244.80	247.70
3875	NASDAQ	AMSC	Fri, Oct 12, 2007	251.30	259.90	251.00	257.70
3874	NASDAQ	AMSC	Thu, Oct 11, 2007	256.70	270.00	243.90	252.00
3873	NASDAQ	AMSC	Wed, Oct 10, 2007	253.20	256.80	252.00	256.00
3872	NASDAQ	AMSC	Tue, Oct 9, 2007	243.20	256.50	243.20	254.80
3871	NASDAQ	AMSC	Mon, Oct 8, 2007	240.90	242.40	233.90	238.90
3870	NASDAQ	AMSC	Fri, Oct 5, 2007	227.50	244.40	227.50	242.90
3869	NASDAQ	AMSC	Thu, Oct 4, 2007	228.40	233.00	222.90	228.10
3868	NASDAQ	AMSC	Wed, Oct 3, 2007	211.80	227.50	211.00	227.00
3867	NASDAQ	AMSC	Tue, Oct 2, 2007	206.20	218.00	204.60	212.60
3866	NASDAQ	AMSC	Mon, Oct 1, 2007	204.30	207.00	202.80	206.40
3865	NASDAQ	AMSC	Fri, Sep 28, 2007	201.40	204.90	196.80	204.80
3864	NASDAQ	AMSC	Thu, Sep 27, 2007	194.10	201.20	190.65	201.20
3863	NASDAQ	AMSC	Wed, Sep 26, 2007	180.00	194.50	180.00	192.80
3862	NASDAQ	AMSC	Tue, Sep 25, 2007	177.90	180.00	175.30	178.40
3861	NASDAQ	AMSC	Mon, Sep 24, 2007	182.30	184.80	178.50	179.40
3860	NASDAQ	AMSC	Fri, Sep 21, 2007	181.80	185.60	180.50	182.70
3859	NASDAQ	AMSC	Thu, Sep 20, 2007	183.50	185.90	177.60	180.10
3858	NASDAQ	AMSC	Wed, Sep 19, 2007	192.90	194.40	183.90	184.60
3857	NASDAQ	AMSC	Tue, Sep 18, 2007	180.00	190.60	179.50	190.50
3856	NASDAQ	AMSC	Mon, Sep 17, 2007	178.40	181.60	177.50	178.00
3855	NASDAQ	AMSC	Fri, Sep 14, 2007	182.60	185.90	178.00	179.20
3854	NASDAQ	AMSC	Thu, Sep 13, 2007	197.30	197.30	182.20	182.60
3853	NASDAQ	AMSC	Wed, Sep 12, 2007	197.70	200.00	195.30	195.60
3852	NASDAQ	AMSC	Tue, Sep 11, 2007	191.10	200.70	190.00	198.00
3851	NASDAQ	AMSC	Mon, Sep 10, 2007	193.40	195.80	183.90	189.70
3850	NASDAQ	AMSC	Fri, Sep 7, 2007	193.10	194.90	188.20	191.50
3849	NASDAQ	AMSC	Thu, Sep 6, 2007	188.10	199.40	188.00	197.80
3848	NASDAQ	AMSC	Wed, Sep 5, 2007	195.70	197.50	187.50	187.60
3847	NASDAQ	AMSC	Tue, Sep 4, 2007	179.00	195.90	178.50	195.10
3846	NASDAQ	AMSC	Fri, Aug 31, 2007	183.20	189.50	179.00	180.20
3845	NASDAQ	AMSC	Thu, Aug 30, 2007	179.40	188.40	179.00	182.20
3844	NASDAQ	AMSC	Wed, Aug 29, 2007	175.80	183.50	172.50	181.80
3843	NASDAQ	AMSC	Tue, Aug 28, 2007	193.00	196.28	174.10	175.30
3842	NASDAQ	AMSC	Mon, Aug 27, 2007	194.90	204.80	190.30	190.40
3841	NASDAQ	AMSC	Fri, Aug 24, 2007	196.10	196.90	186.30	196.80
3840	NASDAQ	AMSC	Thu, Aug 23, 2007	201.60	204.50	195.50	196.40
3839	NASDAQ	AMSC	Wed, Aug 22, 2007	202.00	209.00	197.30	201.70
3838	NASDAQ	AMSC	Tue, Aug 21, 2007	199.00	202.90	195.10	199.70
3837	NASDAQ	AMSC	Mon, Aug 20, 2007	211.40	212.30	196.10	199.90
3836	NASDAQ	AMSC	Fri, Aug 17, 2007	211.60	217.40	197.50	212.90
3835	NASDAQ	AMSC	Thu, Aug 16, 2007	202.00	205.80	192.80	200.60
3834	NASDAQ	AMSC	Wed, Aug 15, 2007	206.50	216.70	201.20	204.60
3833	NASDAQ	AMSC	Tue, Aug 14, 2007	215.10	222.40	207.10	207.60
3832	NASDAQ	AMSC	Mon, Aug 13, 2007	240.00	240.00	207.50	213.50
3831	NASDAQ	AMSC	Fri, Aug 10, 2007	240.70	250.00	215.10	224.90
3830	NASDAQ	AMSC	Thu, Aug 9, 2007	230.90	275.90	220.20	267.70
3829	NASDAQ	AMSC	Wed, Aug 8, 2007	220.50	261.10	219.50	254.40
3828	NASDAQ	AMSC	Tue, Aug 7, 2007	200.10	217.50	197.40	216.80
3827	NASDAQ	AMSC	Mon, Aug 6, 2007	187.30	201.00	182.20	200.70
3826	NASDAQ	AMSC	Fri, Aug 3, 2007	191.70	198.90	186.50	187.20
3825	NASDAQ	AMSC	Thu, Aug 2, 2007	191.30	196.10	186.20	192.50
3824	NASDAQ	AMSC	Wed, Aug 1, 2007	192.50	193.30	183.50	190.60
3823	NASDAQ	AMSC	Tue, Jul 31, 2007	211.80	211.80	190.60	190.90
3822	NASDAQ	AMSC	Mon, Jul 30, 2007	203.00	210.50	193.80	210.00
3821	NASDAQ	AMSC	Fri, Jul 27, 2007	191.00	201.40	185.00	200.00
3820	NASDAQ	AMSC	Thu, Jul 26, 2007	202.20	208.00	188.00	195.20
3819	NASDAQ	AMSC	Wed, Jul 25, 2007	208.50	212.30	197.80	205.80
3818	NASDAQ	AMSC	Tue, Jul 24, 2007	203.00	219.00	201.70	206.80
3817	NASDAQ	AMSC	Mon, Jul 23, 2007	213.00	213.60	193.80	195.80
3816	NASDAQ	AMSC	Fri, Jul 20, 2007	214.20	217.00	212.40	212.80
3815	NASDAQ	AMSC	Thu, Jul 19, 2007	224.30	228.10	218.10	223.40
3814	NASDAQ	AMSC	Wed, Jul 18, 2007	227.00	230.94	222.70	225.10
3813	NASDAQ	AMSC	Tue, Jul 17, 2007	231.20	233.50	225.10	231.30
3812	NASDAQ	AMSC	Mon, Jul 16, 2007	225.20	235.80	225.20	231.10
3811	NASDAQ	AMSC	Fri, Jul 13, 2007	222.50	228.90	220.70	224.40
3810	NASDAQ	AMSC	Thu, Jul 12, 2007	220.00	228.81	219.90	223.20
3809	NASDAQ	AMSC	Wed, Jul 11, 2007	214.60	222.50	213.40	218.50
3808	NASDAQ	AMSC	Tue, Jul 10, 2007	218.00	220.80	213.20	213.70
3807	NASDAQ	AMSC	Mon, Jul 9, 2007	225.00	229.10	217.70	218.70
3806	NASDAQ	AMSC	Fri, Jul 6, 2007	216.50	224.20	215.90	222.60
3805	NASDAQ	AMSC	Thu, Jul 5, 2007	210.00	215.00	208.65	214.90
3804	NASDAQ	AMSC	Tue, Jul 3, 2007	202.50	212.20	201.20	207.30
3803	NASDAQ	AMSC	Mon, Jul 2, 2007	194.50	202.20	192.80	200.80
3802	NASDAQ	AMSC	Fri, Jun 29, 2007	192.90	197.50	189.00	193.10
3801	NASDAQ	AMSC	Thu, Jun 28, 2007	205.40	214.80	189.10	192.50
3800	NASDAQ	AMSC	Wed, Jun 27, 2007	187.70	195.40	183.00	195.40
3799	NASDAQ	AMSC	Tue, Jun 26, 2007	190.00	194.00	187.20	188.80
3798	NASDAQ	AMSC	Mon, Jun 25, 2007	194.80	196.90	187.50	189.00
3797	NASDAQ	AMSC	Fri, Jun 22, 2007	186.60	194.80	184.80	192.40
3796	NASDAQ	AMSC	Thu, Jun 21, 2007	180.90	187.30	175.40	186.20
3795	NASDAQ	AMSC	Wed, Jun 20, 2007	193.80	199.50	180.40	181.10
3794	NASDAQ	AMSC	Tue, Jun 19, 2007	192.30	197.00	189.10	194.20
3793	NASDAQ	AMSC	Mon, Jun 18, 2007	180.30	198.20	179.30	193.90
3792	NASDAQ	AMSC	Fri, Jun 15, 2007	188.50	190.60	179.50	180.10
3791	NASDAQ	AMSC	Thu, Jun 14, 2007	177.00	186.00	177.00	185.50
3790	NASDAQ	AMSC	Wed, Jun 13, 2007	172.80	180.30	169.00	177.30
3789	NASDAQ	AMSC	Tue, Jun 12, 2007	168.80	176.70	166.70	171.70
3788	NASDAQ	AMSC	Mon, Jun 11, 2007	167.30	171.00	165.00	169.40
3787	NASDAQ	AMSC	Fri, Jun 8, 2007	161.80	168.60	160.30	167.70
3786	NASDAQ	AMSC	Thu, Jun 7, 2007	164.00	164.80	160.60	161.90
3785	NASDAQ	AMSC	Wed, Jun 6, 2007	168.30	168.90	162.40	165.10
3784	NASDAQ	AMSC	Tue, Jun 5, 2007	168.50	170.70	167.10	170.00
3783	NASDAQ	AMSC	Mon, Jun 4, 2007	169.00	170.00	165.90	169.70
3782	NASDAQ	AMSC	Fri, Jun 1, 2007	174.00	174.00	168.90	170.40
3781	NASDAQ	AMSC	Thu, May 31, 2007	172.60	178.60	172.00	173.40
3780	NASDAQ	AMSC	Wed, May 30, 2007	173.70	174.20	168.70	171.30
3779	NASDAQ	AMSC	Tue, May 29, 2007	169.00	175.60	167.30	174.20
3778	NASDAQ	AMSC	Fri, May 25, 2007	159.00	174.40	158.40	171.30
3777	NASDAQ	AMSC	Thu, May 24, 2007	162.00	164.90	157.80	159.50
3776	NASDAQ	AMSC	Wed, May 23, 2007	170.70	173.20	162.90	163.10
3775	NASDAQ	AMSC	Tue, May 22, 2007	174.70	177.60	169.00	170.40
3774	NASDAQ	AMSC	Mon, May 21, 2007	154.60	180.00	154.50	177.60
3773	NASDAQ	AMSC	Fri, May 18, 2007	148.30	152.30	146.90	150.00
3772	NASDAQ	AMSC	Thu, May 17, 2007	146.90	149.20	145.50	147.60
3771	NASDAQ	AMSC	Wed, May 16, 2007	145.70	149.40	145.10	147.80
3770	NASDAQ	AMSC	Tue, May 15, 2007	146.90	148.00	145.10	145.50
3769	NASDAQ	AMSC	Mon, May 14, 2007	149.50	149.50	146.00	147.60
3768	NASDAQ	AMSC	Fri, May 11, 2007	145.40	149.00	144.00	149.00
3767	NASDAQ	AMSC	Thu, May 10, 2007	146.40	146.60	143.50	143.80
3766	NASDAQ	AMSC	Wed, May 9, 2007	142.50	147.10	142.20	146.30
3765	NASDAQ	AMSC	Tue, May 8, 2007	144.20	145.00	140.70	143.10
3764	NASDAQ	AMSC	Mon, May 7, 2007	147.00	147.60	143.30	144.60
3763	NASDAQ	AMSC	Fri, May 4, 2007	145.90	148.00	145.50	147.70
3762	NASDAQ	AMSC	Thu, May 3, 2007	144.10	148.40	142.80	145.50
3761	NASDAQ	AMSC	Wed, May 2, 2007	142.50	147.10	141.00	144.30
3760	NASDAQ	AMSC	Tue, May 1, 2007	144.20	144.20	138.50	142.20
3759	NASDAQ	AMSC	Mon, Apr 30, 2007	149.20	150.60	141.20	144.40
3758	NASDAQ	AMSC	Fri, Apr 27, 2007	146.70	150.00	146.60	149.60
3757	NASDAQ	AMSC	Thu, Apr 26, 2007	150.00	150.00	145.50	147.70
3756	NASDAQ	AMSC	Wed, Apr 25, 2007	149.00	151.90	148.30	149.00
3755	NASDAQ	AMSC	Tue, Apr 24, 2007	147.00	150.00	145.80	148.40
3754	NASDAQ	AMSC	Mon, Apr 23, 2007	148.40	149.00	145.60	146.40
3753	NASDAQ	AMSC	Fri, Apr 20, 2007	147.30	149.00	145.00	149.00
3752	NASDAQ	AMSC	Thu, Apr 19, 2007	140.60	144.50	138.50	143.50
3751	NASDAQ	AMSC	Wed, Apr 18, 2007	145.60	146.10	141.20	141.50
3750	NASDAQ	AMSC	Tue, Apr 17, 2007	150.00	152.40	146.00	146.30
3749	NASDAQ	AMSC	Mon, Apr 16, 2007	143.30	150.00	142.70	149.40
3748	NASDAQ	AMSC	Fri, Apr 13, 2007	145.30	145.30	140.60	143.00
3747	NASDAQ	AMSC	Thu, Apr 12, 2007	140.00	145.20	140.00	144.70
3746	NASDAQ	AMSC	Wed, Apr 11, 2007	140.30	141.00	137.90	140.00
3745	NASDAQ	AMSC	Tue, Apr 10, 2007	137.60	142.50	136.80	140.60
3744	NASDAQ	AMSC	Mon, Apr 9, 2007	133.70	134.20	131.00	132.30
3743	NASDAQ	AMSC	Thu, Apr 5, 2007	133.30	134.40	132.60	134.00
3742	NASDAQ	AMSC	Wed, Apr 4, 2007	134.30	135.30	132.30	133.60
3741	NASDAQ	AMSC	Tue, Apr 3, 2007	135.70	137.40	132.00	134.60
3740	NASDAQ	AMSC	Mon, Apr 2, 2007	137.50	137.50	131.10	134.70
3739	NASDAQ	AMSC	Fri, Mar 30, 2007	131.70	135.60	131.70	134.70
3738	NASDAQ	AMSC	Thu, Mar 29, 2007	141.00	144.00	129.40	132.10
3737	NASDAQ	AMSC	Wed, Mar 28, 2007	147.50	147.50	139.50	139.70
3736	NASDAQ	AMSC	Tue, Mar 27, 2007	149.00	150.10	145.00	146.10
3735	NASDAQ	AMSC	Mon, Mar 26, 2007	151.50	152.00	148.30	149.40
3734	NASDAQ	AMSC	Fri, Mar 23, 2007	143.40	150.90	143.40	150.10
3733	NASDAQ	AMSC	Thu, Mar 22, 2007	145.70	146.30	142.50	143.70
3732	NASDAQ	AMSC	Wed, Mar 21, 2007	150.80	150.80	143.60	144.00
3731	NASDAQ	AMSC	Tue, Mar 20, 2007	144.00	144.00	139.10	141.10
3730	NASDAQ	AMSC	Mon, Mar 19, 2007	141.90	150.00	141.90	143.80
3729	NASDAQ	AMSC	Fri, Mar 16, 2007	135.30	144.80	135.30	140.40
3728	NASDAQ	AMSC	Thu, Mar 15, 2007	136.70	137.80	133.90	135.00
3727	NASDAQ	AMSC	Wed, Mar 14, 2007	138.50	141.90	132.50	135.00
3726	NASDAQ	AMSC	Tue, Mar 13, 2007	136.00	143.80	135.50	138.00
3725	NASDAQ	AMSC	Mon, Mar 12, 2007	134.00	134.00	130.70	134.00
3724	NASDAQ	AMSC	Fri, Mar 9, 2007	133.20	133.30	129.50	132.00
3723	NASDAQ	AMSC	Thu, Mar 8, 2007	131.70	133.80	130.08	132.40
3722	NASDAQ	AMSC	Wed, Mar 7, 2007	131.90	134.90	130.30	131.20
3721	NASDAQ	AMSC	Tue, Mar 6, 2007	130.30	132.90	128.20	130.70
3720	NASDAQ	AMSC	Mon, Mar 5, 2007	140.00	140.60	126.80	126.90
3719	NASDAQ	AMSC	Fri, Mar 2, 2007	140.40	144.50	137.90	143.30
3718	NASDAQ	AMSC	Thu, Mar 1, 2007	132.50	142.50	125.30	140.60
3717	NASDAQ	AMSC	Wed, Feb 28, 2007	117.40	140.90	115.50	134.40
3716	NASDAQ	AMSC	Tue, Feb 27, 2007	125.50	126.80	115.50	115.50
3715	NASDAQ	AMSC	Mon, Feb 26, 2007	116.30	128.00	116.30	127.50
3714	NASDAQ	AMSC	Fri, Feb 23, 2007	119.10	119.60	115.50	116.10
3713	NASDAQ	AMSC	Thu, Feb 22, 2007	114.70	119.80	113.50	119.50
3712	NASDAQ	AMSC	Wed, Feb 21, 2007	116.10	116.10	112.70	114.60
3711	NASDAQ	AMSC	Tue, Feb 20, 2007	109.30	117.50	108.80	116.10
3710	NASDAQ	AMSC	Fri, Feb 16, 2007	104.90	110.20	104.30	108.80
3709	NASDAQ	AMSC	Thu, Feb 15, 2007	104.00	105.90	104.00	104.90
3708	NASDAQ	AMSC	Wed, Feb 14, 2007	101.80	106.00	101.70	104.30
3707	NASDAQ	AMSC	Tue, Feb 13, 2007	102.40	103.90	100.70	101.80
3706	NASDAQ	AMSC	Mon, Feb 12, 2007	103.50	104.00	100.50	102.20
3705	NASDAQ	AMSC	Fri, Feb 9, 2007	105.00	105.60	101.70	103.20
3704	NASDAQ	AMSC	Thu, Feb 8, 2007	104.20	105.70	102.90	104.80
3703	NASDAQ	AMSC	Wed, Feb 7, 2007	104.50	105.90	102.00	104.20
3702	NASDAQ	AMSC	Tue, Feb 6, 2007	99.40	105.00	99.40	104.40
3701	NASDAQ	AMSC	Mon, Feb 5, 2007	101.80	102.40	99.30	99.50
3700	NASDAQ	AMSC	Fri, Feb 2, 2007	99.60	103.10	98.30	101.70
3699	NASDAQ	AMSC	Thu, Feb 1, 2007	97.00	101.00	96.00	99.60
3698	NASDAQ	AMSC	Wed, Jan 31, 2007	103.50	103.90	100.50	100.70
3697	NASDAQ	AMSC	Tue, Jan 30, 2007	99.10	103.40	98.20	102.90
3696	NASDAQ	AMSC	Mon, Jan 29, 2007	98.90	98.90	97.30	98.50
3695	NASDAQ	AMSC	Fri, Jan 26, 2007	97.30	99.00	96.80	98.80
3694	NASDAQ	AMSC	Thu, Jan 25, 2007	100.00	100.40	96.90	97.20
3693	NASDAQ	AMSC	Wed, Jan 24, 2007	99.80	99.90	96.90	99.59
3692	NASDAQ	AMSC	Tue, Jan 23, 2007	96.10	99.10	95.10	97.80
3691	NASDAQ	AMSC	Mon, Jan 22, 2007	93.70	95.60	93.00	94.50
3690	NASDAQ	AMSC	Fri, Jan 19, 2007	92.60	95.00	92.00	94.90
3689	NASDAQ	AMSC	Thu, Jan 18, 2007	95.10	96.60	92.60	93.00
3688	NASDAQ	AMSC	Wed, Jan 17, 2007	95.40	96.00	94.30	94.70
3687	NASDAQ	AMSC	Tue, Jan 16, 2007	95.30	96.90	95.00	96.00
3686	NASDAQ	AMSC	Fri, Jan 12, 2007	92.40	95.40	92.40	94.50
3685	NASDAQ	AMSC	Thu, Jan 11, 2007	96.30	96.30	92.10	92.50
3684	NASDAQ	AMSC	Wed, Jan 10, 2007	96.10	96.80	94.10	95.80
3683	NASDAQ	AMSC	Tue, Jan 9, 2007	96.20	97.40	94.10	97.00
3682	NASDAQ	AMSC	Mon, Jan 8, 2007	95.80	97.40	93.90	96.30
3681	NASDAQ	AMSC	Fri, Jan 5, 2007	98.60	98.60	94.90	96.40
3680	NASDAQ	AMSC	Thu, Jan 4, 2007	97.20	101.30	96.30	99.10
3679	NASDAQ	AMSC	Wed, Jan 3, 2007	98.60	99.80	95.70	97.30
3678	NASDAQ	AMSC	Fri, Dec 29, 2006	98.60	98.70	97.00	98.10
3677	NASDAQ	AMSC	Thu, Dec 28, 2006	98.00	99.20	98.00	98.40
3676	NASDAQ	AMSC	Wed, Dec 27, 2006	98.60	99.00	97.00	98.30
3675	NASDAQ	AMSC	Tue, Dec 26, 2006	99.10	99.60	97.20	98.60
3674	NASDAQ	AMSC	Fri, Dec 22, 2006	100.40	100.50	98.40	99.40
3673	NASDAQ	AMSC	Thu, Dec 21, 2006	99.00	100.90	99.00	100.10
3672	NASDAQ	AMSC	Wed, Dec 20, 2006	98.00	102.80	97.50	99.60
3671	NASDAQ	AMSC	Tue, Dec 19, 2006	97.40	99.40	96.20	97.70
3670	NASDAQ	AMSC	Mon, Dec 18, 2006	105.50	106.40	93.90	98.30
3669	NASDAQ	AMSC	Fri, Dec 15, 2006	108.50	110.00	107.90	108.50
3668	NASDAQ	AMSC	Thu, Dec 14, 2006	107.80	111.40	106.30	108.00
3667	NASDAQ	AMSC	Wed, Dec 13, 2006	109.50	109.60	106.10	107.60
3666	NASDAQ	AMSC	Tue, Dec 12, 2006	110.00	111.00	106.70	108.70
3665	NASDAQ	AMSC	Mon, Dec 11, 2006	109.60	110.90	108.10	110.00
3664	NASDAQ	AMSC	Fri, Dec 8, 2006	110.80	111.70	109.00	110.10
3663	NASDAQ	AMSC	Thu, Dec 7, 2006	110.70	112.60	109.50	110.60
3662	NASDAQ	AMSC	Wed, Dec 6, 2006	108.50	111.50	108.30	110.10
3661	NASDAQ	AMSC	Tue, Dec 5, 2006	110.00	110.30	107.70	109.30
3660	NASDAQ	AMSC	Mon, Dec 4, 2006	107.40	111.40	107.30	110.30
3659	NASDAQ	AMSC	Fri, Dec 1, 2006	106.60	107.40	104.00	106.70
3658	NASDAQ	AMSC	Thu, Nov 30, 2006	104.10	107.20	99.80	105.10
3657	NASDAQ	AMSC	Wed, Nov 29, 2006	103.00	105.90	101.00	102.90
3656	NASDAQ	AMSC	Tue, Nov 28, 2006	94.50	95.50	92.40	95.30
3655	NASDAQ	AMSC	Mon, Nov 27, 2006	98.60	98.60	93.20	94.00
3654	NASDAQ	AMSC	Fri, Nov 24, 2006	98.50	99.30	97.00	98.60
3653	NASDAQ	AMSC	Wed, Nov 22, 2006	101.40	101.40	98.50	98.80
3652	NASDAQ	AMSC	Tue, Nov 21, 2006	102.50	103.50	101.40	101.60
3651	NASDAQ	AMSC	Mon, Nov 20, 2006	99.50	103.30	99.50	102.80
3650	NASDAQ	AMSC	Fri, Nov 17, 2006	103.50	103.50	99.80	100.10
3649	NASDAQ	AMSC	Thu, Nov 16, 2006	103.00	104.70	102.40	103.40
3648	NASDAQ	AMSC	Wed, Nov 15, 2006	99.30	103.00	99.30	102.70
3647	NASDAQ	AMSC	Tue, Nov 14, 2006	93.00	99.60	92.60	99.50
3646	NASDAQ	AMSC	Mon, Nov 13, 2006	92.50	93.10	91.60	93.10
3645	NASDAQ	AMSC	Fri, Nov 10, 2006	93.20	94.30	92.20	92.80
3644	NASDAQ	AMSC	Thu, Nov 9, 2006	96.00	96.20	92.50	93.60
3643	NASDAQ	AMSC	Wed, Nov 8, 2006	94.00	95.10	92.30	94.90
3642	NASDAQ	AMSC	Tue, Nov 7, 2006	91.00	93.90	91.00	93.10
3641	NASDAQ	AMSC	Mon, Nov 6, 2006	91.70	92.30	90.30	91.40
3640	NASDAQ	AMSC	Fri, Nov 3, 2006	91.80	93.00	90.70	91.60
3639	NASDAQ	AMSC	Thu, Nov 2, 2006	93.10	93.80	90.80	91.60
3638	NASDAQ	AMSC	Wed, Nov 1, 2006	95.00	95.80	93.00	94.30
3637	NASDAQ	AMSC	Tue, Oct 31, 2006	96.00	96.90	94.50	94.90
3636	NASDAQ	AMSC	Mon, Oct 30, 2006	94.30	96.00	94.10	94.60
3635	NASDAQ	AMSC	Fri, Oct 27, 2006	98.00	98.50	94.00	95.10
3634	NASDAQ	AMSC	Thu, Oct 26, 2006	97.70	99.60	96.80	97.80
3633	NASDAQ	AMSC	Wed, Oct 25, 2006	97.70	99.40	96.70	97.80
3632	NASDAQ	AMSC	Tue, Oct 24, 2006	96.50	97.50	96.10	96.70
3631	NASDAQ	AMSC	Mon, Oct 23, 2006	99.00	99.70	97.10	97.20
3630	NASDAQ	AMSC	Fri, Oct 20, 2006	100.30	100.30	97.70	99.20
3629	NASDAQ	AMSC	Thu, Oct 19, 2006	99.50	100.50	99.00	100.00
3628	NASDAQ	AMSC	Wed, Oct 18, 2006	100.60	102.80	99.50	100.00
3627	NASDAQ	AMSC	Tue, Oct 17, 2006	102.00	102.00	98.10	100.20
3626	NASDAQ	AMSC	Mon, Oct 16, 2006	100.80	104.00	100.10	102.90
3625	NASDAQ	AMSC	Fri, Oct 13, 2006	101.80	102.60	100.70	101.20
3624	NASDAQ	AMSC	Thu, Oct 12, 2006	97.00	101.50	97.00	100.80
3623	NASDAQ	AMSC	Wed, Oct 11, 2006	96.80	98.50	96.30	96.80
3622	NASDAQ	AMSC	Tue, Oct 10, 2006	96.80	99.20	96.80	97.60
3621	NASDAQ	AMSC	Mon, Oct 9, 2006	94.40	95.80	93.50	95.60
3620	NASDAQ	AMSC	Fri, Oct 6, 2006	96.00	96.00	93.80	95.00
3619	NASDAQ	AMSC	Thu, Oct 5, 2006	94.50	95.70	93.00	95.40
3618	NASDAQ	AMSC	Wed, Oct 4, 2006	91.20	94.30	90.60	94.00
3617	NASDAQ	AMSC	Tue, Oct 3, 2006	90.80	94.50	90.80	91.10
3616	NASDAQ	AMSC	Mon, Oct 2, 2006	92.00	92.40	89.00	90.60
3615	NASDAQ	AMSC	Fri, Sep 29, 2006	95.00	95.00	91.50	92.60
3614	NASDAQ	AMSC	Thu, Sep 28, 2006	93.90	95.40	93.70	94.80
3613	NASDAQ	AMSC	Wed, Sep 27, 2006	93.20	95.40	93.20	94.00
3612	NASDAQ	AMSC	Tue, Sep 26, 2006	93.10	95.80	92.50	93.80
3611	NASDAQ	AMSC	Mon, Sep 25, 2006	94.90	96.20	92.70	93.50
3610	NASDAQ	AMSC	Fri, Sep 22, 2006	96.50	97.10	92.70	94.30
3609	NASDAQ	AMSC	Thu, Sep 21, 2006	100.60	101.00	96.40	97.20
3608	NASDAQ	AMSC	Wed, Sep 20, 2006	99.90	102.00	99.50	99.50
3607	NASDAQ	AMSC	Tue, Sep 19, 2006	101.70	101.70	96.30	99.60
3606	NASDAQ	AMSC	Mon, Sep 18, 2006	102.60	103.90	100.00	101.10
3605	NASDAQ	AMSC	Fri, Sep 15, 2006	100.00	103.00	99.50	102.60
3604	NASDAQ	AMSC	Thu, Sep 14, 2006	99.30	99.90	96.60	99.00
3603	NASDAQ	AMSC	Wed, Sep 13, 2006	96.90	99.60	96.40	99.40
3602	NASDAQ	AMSC	Tue, Sep 12, 2006	93.00	97.00	93.00	96.50
3601	NASDAQ	AMSC	Mon, Sep 11, 2006	92.70	94.80	92.10	92.80
3600	NASDAQ	AMSC	Fri, Sep 8, 2006	97.80	97.80	93.40	93.60
3599	NASDAQ	AMSC	Thu, Sep 7, 2006	93.10	99.10	93.10	96.80
3598	NASDAQ	AMSC	Wed, Sep 6, 2006	102.40	102.50	93.90	94.10
3597	NASDAQ	AMSC	Tue, Sep 5, 2006	100.90	102.60	100.10	102.60
3596	NASDAQ	AMSC	Fri, Sep 1, 2006	99.80	101.20	99.00	100.30
3595	NASDAQ	AMSC	Thu, Aug 31, 2006	98.60	100.50	97.50	99.70
3594	NASDAQ	AMSC	Wed, Aug 30, 2006	99.10	99.60	97.50	97.90
3593	NASDAQ	AMSC	Tue, Aug 29, 2006	96.40	99.10	95.40	98.60
3592	NASDAQ	AMSC	Mon, Aug 28, 2006	97.50	98.30	95.00	95.60
3591	NASDAQ	AMSC	Fri, Aug 25, 2006	96.10	97.40	94.70	97.10
3590	NASDAQ	AMSC	Thu, Aug 24, 2006	95.50	96.90	94.00	96.00
3589	NASDAQ	AMSC	Wed, Aug 23, 2006	97.10	99.50	95.40	95.90
3588	NASDAQ	AMSC	Tue, Aug 22, 2006	98.60	99.80	96.10	97.60
3587	NASDAQ	AMSC	Mon, Aug 21, 2006	101.00	101.00	98.00	99.30
3586	NASDAQ	AMSC	Fri, Aug 18, 2006	98.30	101.30	96.40	101.30
3585	NASDAQ	AMSC	Thu, Aug 17, 2006	97.10	98.50	95.30	98.10
3584	NASDAQ	AMSC	Wed, Aug 16, 2006	96.20	98.90	94.20	98.00
3583	NASDAQ	AMSC	Tue, Aug 15, 2006	94.90	95.80	92.50	95.20
3582	NASDAQ	AMSC	Mon, Aug 14, 2006	93.10	94.80	92.00	93.10
3581	NASDAQ	AMSC	Fri, Aug 11, 2006	92.10	92.40	89.60	92.00
3580	NASDAQ	AMSC	Thu, Aug 10, 2006	90.00	93.90	88.60	92.70
3579	NASDAQ	AMSC	Wed, Aug 9, 2006	91.50	92.70	90.00	90.80
3578	NASDAQ	AMSC	Tue, Aug 8, 2006	91.60	95.10	90.10	90.20
3577	NASDAQ	AMSC	Mon, Aug 7, 2006	90.50	91.50	88.60	89.80
3576	NASDAQ	AMSC	Fri, Aug 4, 2006	95.00	95.80	89.60	91.00
3575	NASDAQ	AMSC	Thu, Aug 3, 2006	92.00	95.00	91.10	93.80
3574	NASDAQ	AMSC	Wed, Aug 2, 2006	92.40	93.90	91.50	92.00
3573	NASDAQ	AMSC	Tue, Aug 1, 2006	92.50	93.00	90.10	91.80
3572	NASDAQ	AMSC	Mon, Jul 31, 2006	88.00	93.90	87.50	92.00
3571	NASDAQ	AMSC	Fri, Jul 28, 2006	91.10	92.60	87.00	88.50
3570	NASDAQ	AMSC	Thu, Jul 27, 2006	89.40	92.90	89.40	90.10
3569	NASDAQ	AMSC	Wed, Jul 26, 2006	90.00	91.70	87.00	89.70
3568	NASDAQ	AMSC	Tue, Jul 25, 2006	73.00	91.20	72.50	91.10
3567	NASDAQ	AMSC	Mon, Jul 24, 2006	67.80	72.70	67.80	72.60
3566	NASDAQ	AMSC	Fri, Jul 21, 2006	70.00	70.30	67.30	67.30
3565	NASDAQ	AMSC	Thu, Jul 20, 2006	77.70	77.70	70.10	70.30
3564	NASDAQ	AMSC	Wed, Jul 19, 2006	71.20	77.00	70.60	77.00
3563	NASDAQ	AMSC	Tue, Jul 18, 2006	71.10	73.20	69.00	70.90
3562	NASDAQ	AMSC	Mon, Jul 17, 2006	72.90	73.00	69.90	70.40
3561	NASDAQ	AMSC	Fri, Jul 14, 2006	73.70	74.90	73.10	73.10
3560	NASDAQ	AMSC	Thu, Jul 13, 2006	78.90	78.90	73.80	74.20
3559	NASDAQ	AMSC	Wed, Jul 12, 2006	81.20	81.30	78.40	78.60
3558	NASDAQ	AMSC	Tue, Jul 11, 2006	81.10	81.70	78.50	81.50
3557	NASDAQ	AMSC	Mon, Jul 10, 2006	80.70	82.80	80.70	81.90
3556	NASDAQ	AMSC	Fri, Jul 7, 2006	84.00	84.60	80.00	80.20
3555	NASDAQ	AMSC	Thu, Jul 6, 2006	85.60	87.10	83.30	84.70
3554	NASDAQ	AMSC	Wed, Jul 5, 2006	89.10	89.10	85.00	85.30
3553	NASDAQ	AMSC	Mon, Jul 3, 2006	87.60	91.20	87.50	90.50
3552	NASDAQ	AMSC	Fri, Jun 30, 2006	88.20	90.00	87.10	88.30
3551	NASDAQ	AMSC	Thu, Jun 29, 2006	86.80	90.00	86.40	87.70
3550	NASDAQ	AMSC	Wed, Jun 28, 2006	88.70	89.30	82.50	86.40
3549	NASDAQ	AMSC	Tue, Jun 27, 2006	89.70	91.00	87.70	89.10
3548	NASDAQ	AMSC	Mon, Jun 26, 2006	85.80	89.40	84.80	89.30
3547	NASDAQ	AMSC	Fri, Jun 23, 2006	86.00	86.50	84.60	86.10
3546	NASDAQ	AMSC	Thu, Jun 22, 2006	86.60	87.20	85.30	86.70
3545	NASDAQ	AMSC	Wed, Jun 21, 2006	84.90	88.30	84.90	87.20
3544	NASDAQ	AMSC	Tue, Jun 20, 2006	86.10	86.80	84.70	85.30
3543	NASDAQ	AMSC	Mon, Jun 19, 2006	88.60	89.30	85.00	85.90
3542	NASDAQ	AMSC	Fri, Jun 16, 2006	89.80	91.00	87.90	88.40
3541	NASDAQ	AMSC	Thu, Jun 15, 2006	89.10	91.90	88.00	89.90
3540	NASDAQ	AMSC	Wed, Jun 14, 2006	86.50	88.00	85.70	87.80
3539	NASDAQ	AMSC	Tue, Jun 13, 2006	87.90	91.20	85.70	85.90
3538	NASDAQ	AMSC	Mon, Jun 12, 2006	92.40	92.80	87.70	87.80
3537	NASDAQ	AMSC	Fri, Jun 9, 2006	92.50	95.10	91.90	92.80
3536	NASDAQ	AMSC	Thu, Jun 8, 2006	92.00	92.60	86.80	91.90
3535	NASDAQ	AMSC	Wed, Jun 7, 2006	92.30	97.70	91.70	93.00
3534	NASDAQ	AMSC	Tue, Jun 6, 2006	89.10	92.00	89.00	91.80
3533	NASDAQ	AMSC	Mon, Jun 5, 2006	91.50	94.00	89.40	89.40
3532	NASDAQ	AMSC	Fri, Jun 2, 2006	95.50	96.10	91.00	92.00
3531	NASDAQ	AMSC	Thu, Jun 1, 2006	93.90	94.20	90.80	93.40
3530	NASDAQ	AMSC	Wed, May 31, 2006	94.60	95.40	91.20	93.70
3529	NASDAQ	AMSC	Tue, May 30, 2006	96.00	96.30	92.90	93.80
3528	NASDAQ	AMSC	Fri, May 26, 2006	92.00	97.10	91.60	96.40
3527	NASDAQ	AMSC	Thu, May 25, 2006	89.20	92.60	89.20	92.40
3526	NASDAQ	AMSC	Wed, May 24, 2006	89.00	90.90	86.10	88.90
3525	NASDAQ	AMSC	Tue, May 23, 2006	89.50	90.80	88.70	88.70
3524	NASDAQ	AMSC	Mon, May 22, 2006	88.00	91.20	85.60	88.20
3523	NASDAQ	AMSC	Fri, May 19, 2006	90.00	90.80	86.70	88.40
3522	NASDAQ	AMSC	Thu, May 18, 2006	90.90	93.20	90.50	90.70
3521	NASDAQ	AMSC	Wed, May 17, 2006	93.90	95.20	89.60	90.60
3520	NASDAQ	AMSC	Tue, May 16, 2006	95.30	100.00	94.20	94.50
3519	NASDAQ	AMSC	Mon, May 15, 2006	97.40	99.40	94.70	95.90
3518	NASDAQ	AMSC	Fri, May 12, 2006	96.80	99.00	95.30	98.40
3517	NASDAQ	AMSC	Thu, May 11, 2006	102.90	104.00	88.40	98.00
3516	NASDAQ	AMSC	Wed, May 10, 2006	105.40	106.00	101.00	104.80
3515	NASDAQ	AMSC	Tue, May 9, 2006	105.30	108.10	103.70	104.90
3514	NASDAQ	AMSC	Mon, May 8, 2006	107.00	110.00	105.10	105.80
3513	NASDAQ	AMSC	Fri, May 5, 2006	110.50	110.90	107.50	107.70
3512	NASDAQ	AMSC	Thu, May 4, 2006	110.00	110.50	108.60	109.80
3511	NASDAQ	AMSC	Wed, May 3, 2006	109.70	110.00	106.70	109.30
3510	NASDAQ	AMSC	Tue, May 2, 2006	109.70	109.70	106.50	108.90
3509	NASDAQ	AMSC	Mon, May 1, 2006	109.80	112.50	107.80	108.90
3508	NASDAQ	AMSC	Fri, Apr 28, 2006	110.50	110.80	107.00	109.60
3507	NASDAQ	AMSC	Thu, Apr 27, 2006	107.80	115.20	106.40	110.00
3506	NASDAQ	AMSC	Wed, Apr 26, 2006	107.50	109.20	106.20	107.60
3505	NASDAQ	AMSC	Tue, Apr 25, 2006	108.60	109.90	106.70	107.80
3504	NASDAQ	AMSC	Mon, Apr 24, 2006	109.40	110.70	108.50	108.60
3503	NASDAQ	AMSC	Fri, Apr 21, 2006	112.10	112.40	108.60	109.70
3502	NASDAQ	AMSC	Thu, Apr 20, 2006	112.80	113.00	110.00	110.80
3501	NASDAQ	AMSC	Wed, Apr 19, 2006	111.20	113.00	110.80	112.90
3500	NASDAQ	AMSC	Tue, Apr 18, 2006	106.50	111.90	106.00	111.10
3499	NASDAQ	AMSC	Mon, Apr 17, 2006	109.30	109.40	104.40	105.30
3498	NASDAQ	AMSC	Thu, Apr 13, 2006	106.80	112.30	106.80	109.00
3497	NASDAQ	AMSC	Wed, Apr 12, 2006	103.40	107.50	102.00	107.10
3496	NASDAQ	AMSC	Tue, Apr 11, 2006	107.40	107.90	103.30	104.10
3495	NASDAQ	AMSC	Mon, Apr 10, 2006	109.00	109.90	106.40	106.40
3494	NASDAQ	AMSC	Fri, Apr 7, 2006	111.10	113.00	108.90	109.40
3493	NASDAQ	AMSC	Thu, Apr 6, 2006	111.50	112.30	110.00	110.60
3492	NASDAQ	AMSC	Wed, Apr 5, 2006	109.50	112.00	107.50	111.00
3491	NASDAQ	AMSC	Tue, Apr 4, 2006	111.60	111.60	104.90	109.50
3490	NASDAQ	AMSC	Mon, Apr 3, 2006	113.90	114.40	110.00	110.80
3489	NASDAQ	AMSC	Fri, Mar 31, 2006	112.50	114.50	112.00	113.50
3488	NASDAQ	AMSC	Thu, Mar 30, 2006	112.10	114.00	110.90	113.70
3487	NASDAQ	AMSC	Wed, Mar 29, 2006	108.00	113.00	106.90	112.70
3486	NASDAQ	AMSC	Tue, Mar 28, 2006	106.00	109.10	104.80	108.00
3485	NASDAQ	AMSC	Mon, Mar 27, 2006	109.40	109.70	105.60	106.50
3484	NASDAQ	AMSC	Fri, Mar 24, 2006	102.00	110.30	100.50	109.10
3483	NASDAQ	AMSC	Thu, Mar 23, 2006	97.00	101.30	96.70	101.20
3482	NASDAQ	AMSC	Wed, Mar 22, 2006	94.50	98.50	94.10	96.60
3481	NASDAQ	AMSC	Tue, Mar 21, 2006	99.30	100.00	94.70	94.80
3480	NASDAQ	AMSC	Mon, Mar 20, 2006	96.00	99.50	95.60	98.90
3479	NASDAQ	AMSC	Fri, Mar 17, 2006	99.10	99.40	95.80	96.10
3478	NASDAQ	AMSC	Thu, Mar 16, 2006	98.50	99.90	96.60	98.60
3477	NASDAQ	AMSC	Wed, Mar 15, 2006	95.00	98.80	94.00	97.40
3476	NASDAQ	AMSC	Tue, Mar 14, 2006	93.60	95.70	93.20	94.50
3475	NASDAQ	AMSC	Mon, Mar 13, 2006	92.90	94.50	92.80	93.40
3474	NASDAQ	AMSC	Fri, Mar 10, 2006	91.80	92.90	90.30	92.60
3473	NASDAQ	AMSC	Thu, Mar 9, 2006	93.50	95.70	90.90	91.30
3472	NASDAQ	AMSC	Wed, Mar 8, 2006	93.90	95.50	93.10	93.50
3471	NASDAQ	AMSC	Tue, Mar 7, 2006	98.20	98.20	92.00	93.40
3470	NASDAQ	AMSC	Mon, Mar 6, 2006	99.70	100.70	97.10	98.20
3469	NASDAQ	AMSC	Fri, Mar 3, 2006	101.00	102.00	98.90	98.90
3468	NASDAQ	AMSC	Thu, Mar 2, 2006	101.00	103.30	99.60	101.90
3467	NASDAQ	AMSC	Wed, Mar 1, 2006	100.80	104.30	100.60	101.00
3466	NASDAQ	AMSC	Tue, Feb 28, 2006	105.10	105.70	100.50	100.80
3465	NASDAQ	AMSC	Mon, Feb 27, 2006	107.50	109.80	105.10	106.10
3464	NASDAQ	AMSC	Fri, Feb 24, 2006	110.00	110.00	104.20	107.50
3463	NASDAQ	AMSC	Thu, Feb 23, 2006	105.20	110.90	105.20	109.50
3462	NASDAQ	AMSC	Wed, Feb 22, 2006	102.40	106.40	101.70	105.90
3461	NASDAQ	AMSC	Tue, Feb 21, 2006	102.80	103.90	99.00	101.50
3460	NASDAQ	AMSC	Fri, Feb 17, 2006	103.70	104.90	102.00	103.00
3459	NASDAQ	AMSC	Thu, Feb 16, 2006	104.10	105.80	102.30	104.10
3458	NASDAQ	AMSC	Wed, Feb 15, 2006	105.00	105.00	102.00	103.20
3457	NASDAQ	AMSC	Tue, Feb 14, 2006	104.10	104.90	101.10	103.20
3456	NASDAQ	AMSC	Mon, Feb 13, 2006	102.80	104.70	100.30	103.20
3455	NASDAQ	AMSC	Fri, Feb 10, 2006	104.80	106.00	100.50	102.30
3454	NASDAQ	AMSC	Thu, Feb 9, 2006	107.00	107.70	104.80	105.00
3453	NASDAQ	AMSC	Wed, Feb 8, 2006	107.60	108.30	104.80	107.00
3452	NASDAQ	AMSC	Tue, Feb 7, 2006	111.20	111.20	105.00	106.30
3451	NASDAQ	AMSC	Mon, Feb 6, 2006	109.20	110.00	106.50	109.50
3450	NASDAQ	AMSC	Fri, Feb 3, 2006	114.00	115.90	107.70	107.70
3449	NASDAQ	AMSC	Thu, Feb 2, 2006	108.60	116.80	107.70	115.90
3448	NASDAQ	AMSC	Wed, Feb 1, 2006	110.90	116.90	110.90	112.10
3447	NASDAQ	AMSC	Tue, Jan 31, 2006	113.00	113.00	110.00	112.00
3446	NASDAQ	AMSC	Mon, Jan 30, 2006	116.70	118.90	112.20	112.30
3445	NASDAQ	AMSC	Fri, Jan 27, 2006	115.20	116.70	114.40	114.60
3444	NASDAQ	AMSC	Thu, Jan 26, 2006	112.10	117.00	111.70	115.70
3443	NASDAQ	AMSC	Wed, Jan 25, 2006	116.30	117.70	109.30	112.10
3442	NASDAQ	AMSC	Tue, Jan 24, 2006	103.20	118.60	102.90	116.00
3441	NASDAQ	AMSC	Mon, Jan 23, 2006	99.50	102.40	98.70	102.30
3440	NASDAQ	AMSC	Fri, Jan 20, 2006	101.10	101.10	98.10	98.60
3439	NASDAQ	AMSC	Thu, Jan 19, 2006	95.10	101.00	95.00	99.80
3438	NASDAQ	AMSC	Wed, Jan 18, 2006	94.00	95.60	93.00	95.10
3437	NASDAQ	AMSC	Tue, Jan 17, 2006	96.50	97.00	94.70	95.20
3436	NASDAQ	AMSC	Fri, Jan 13, 2006	92.60	96.70	92.20	96.70
3435	NASDAQ	AMSC	Thu, Jan 12, 2006	92.80	93.00	91.20	92.60
3434	NASDAQ	AMSC	Wed, Jan 11, 2006	92.20	92.90	90.20	92.40
3433	NASDAQ	AMSC	Tue, Jan 10, 2006	92.10	92.80	90.30	92.30
3432	NASDAQ	AMSC	Mon, Jan 9, 2006	89.80	94.10	88.80	92.50
3431	NASDAQ	AMSC	Fri, Jan 6, 2006	89.60	89.80	86.70	88.40
3430	NASDAQ	AMSC	Thu, Jan 5, 2006	88.90	89.10	86.10	88.40
3429	NASDAQ	AMSC	Wed, Jan 4, 2006	85.00	90.00	85.00	89.20
3428	NASDAQ	AMSC	Tue, Jan 3, 2006	81.90	85.00	79.20	84.40
3427	NASDAQ	AMSC	Fri, Dec 30, 2005	78.70	80.20	77.60	78.70
3426	NASDAQ	AMSC	Thu, Dec 29, 2005	81.90	83.20	77.50	79.50
3425	NASDAQ	AMSC	Wed, Dec 28, 2005	82.90	82.90	80.90	81.30
3424	NASDAQ	AMSC	Tue, Dec 27, 2005	82.40	83.50	81.90	82.50
3423	NASDAQ	AMSC	Fri, Dec 23, 2005	83.50	83.90	82.20	83.00
3422	NASDAQ	AMSC	Thu, Dec 22, 2005	82.40	83.90	82.40	83.50
3421	NASDAQ	AMSC	Wed, Dec 21, 2005	84.40	84.90	81.60	82.40
3420	NASDAQ	AMSC	Tue, Dec 20, 2005	80.90	84.60	80.50	83.80
3419	NASDAQ	AMSC	Mon, Dec 19, 2005	82.10	83.80	80.60	81.50
3418	NASDAQ	AMSC	Fri, Dec 16, 2005	85.90	87.30	81.60	82.10
3417	NASDAQ	AMSC	Thu, Dec 15, 2005	85.30	85.90	83.80	85.50
3416	NASDAQ	AMSC	Wed, Dec 14, 2005	86.60	87.70	85.10	85.60
3415	NASDAQ	AMSC	Tue, Dec 13, 2005	88.80	90.50	86.90	87.00
3414	NASDAQ	AMSC	Mon, Dec 12, 2005	91.40	91.70	89.00	89.50
3413	NASDAQ	AMSC	Fri, Dec 9, 2005	88.90	92.50	88.30	91.20
3412	NASDAQ	AMSC	Thu, Dec 8, 2005	88.20	90.40	88.00	88.10
3411	NASDAQ	AMSC	Wed, Dec 7, 2005	88.40	89.50	87.80	88.50
3410	NASDAQ	AMSC	Tue, Dec 6, 2005	86.10	88.90	85.10	87.70
3409	NASDAQ	AMSC	Mon, Dec 5, 2005	85.40	86.30	84.50	85.30
3408	NASDAQ	AMSC	Fri, Dec 2, 2005	84.50	86.40	82.60	85.80
3407	NASDAQ	AMSC	Thu, Dec 1, 2005	82.50	84.40	80.90	84.00
3406	NASDAQ	AMSC	Wed, Nov 30, 2005	80.30	82.30	79.70	81.50
3405	NASDAQ	AMSC	Tue, Nov 29, 2005	82.50	84.00	79.80	80.30
3404	NASDAQ	AMSC	Mon, Nov 28, 2005	78.50	82.90	78.00	81.80
3403	NASDAQ	AMSC	Fri, Nov 25, 2005	79.50	80.10	78.10	79.90
3402	NASDAQ	AMSC	Wed, Nov 23, 2005	78.00	79.80	78.00	78.70
3401	NASDAQ	AMSC	Tue, Nov 22, 2005	76.90	78.30	75.50	78.10
3400	NASDAQ	AMSC	Mon, Nov 21, 2005	79.90	80.00	77.10	77.50
3399	NASDAQ	AMSC	Fri, Nov 18, 2005	77.20	77.60	74.60	76.80
3398	NASDAQ	AMSC	Thu, Nov 17, 2005	76.00	77.70	74.80	76.00
3397	NASDAQ	AMSC	Wed, Nov 16, 2005	72.90	77.10	72.50	76.10
3396	NASDAQ	AMSC	Tue, Nov 15, 2005	72.80	73.30	69.10	70.30
3395	NASDAQ	AMSC	Mon, Nov 14, 2005	73.50	74.80	72.60	72.90
3394	NASDAQ	AMSC	Fri, Nov 11, 2005	74.90	75.50	72.00	73.10
3393	NASDAQ	AMSC	Thu, Nov 10, 2005	76.00	77.70	74.50	75.00
3392	NASDAQ	AMSC	Wed, Nov 9, 2005	81.90	82.00	75.00	76.10
3391	NASDAQ	AMSC	Tue, Nov 8, 2005	82.50	83.00	80.80	82.30
3390	NASDAQ	AMSC	Mon, Nov 7, 2005	81.30	82.50	81.10	81.80
3389	NASDAQ	AMSC	Fri, Nov 4, 2005	81.20	82.00	80.60	81.50
3388	NASDAQ	AMSC	Thu, Nov 3, 2005	81.90	82.00	80.90	81.60
3387	NASDAQ	AMSC	Wed, Nov 2, 2005	81.30	81.80	80.10	81.10
3386	NASDAQ	AMSC	Tue, Nov 1, 2005	82.10	82.30	80.60	81.30
3385	NASDAQ	AMSC	Mon, Oct 31, 2005	79.20	82.20	78.90	82.10
3384	NASDAQ	AMSC	Fri, Oct 28, 2005	77.90	80.00	77.90	79.50
3383	NASDAQ	AMSC	Thu, Oct 27, 2005	80.50	80.80	76.40	77.00
3382	NASDAQ	AMSC	Wed, Oct 26, 2005	82.60	84.40	78.90	80.50
3381	NASDAQ	AMSC	Tue, Oct 25, 2005	83.70	85.40	82.10	83.10
3380	NASDAQ	AMSC	Mon, Oct 24, 2005	81.00	84.80	81.00	83.60
3379	NASDAQ	AMSC	Fri, Oct 21, 2005	82.50	84.60	80.40	80.90
3378	NASDAQ	AMSC	Thu, Oct 20, 2005	85.30	86.30	81.20	82.50
3377	NASDAQ	AMSC	Wed, Oct 19, 2005	84.10	86.00	82.70	85.40
3376	NASDAQ	AMSC	Tue, Oct 18, 2005	85.90	86.20	82.80	84.10
3375	NASDAQ	AMSC	Mon, Oct 17, 2005	88.00	88.20	84.20	85.90
3374	NASDAQ	AMSC	Fri, Oct 14, 2005	87.00	88.90	83.30	87.60
3373	NASDAQ	AMSC	Thu, Oct 13, 2005	82.60	86.40	80.40	86.40
3372	NASDAQ	AMSC	Wed, Oct 12, 2005	86.80	89.40	82.10	82.20
3371	NASDAQ	AMSC	Tue, Oct 11, 2005	92.60	95.40	86.50	87.20
3370	NASDAQ	AMSC	Mon, Oct 10, 2005	99.50	100.00	91.90	92.50
3369	NASDAQ	AMSC	Fri, Oct 7, 2005	99.50	101.30	98.30	98.60
3368	NASDAQ	AMSC	Thu, Oct 6, 2005	101.50	104.90	98.20	98.70
3367	NASDAQ	AMSC	Wed, Oct 5, 2005	104.50	105.80	101.60	102.20
3366	NASDAQ	AMSC	Tue, Oct 4, 2005	107.70	107.80	103.80	104.90
3365	NASDAQ	AMSC	Mon, Oct 3, 2005	103.40	108.50	102.70	106.00
3364	NASDAQ	AMSC	Fri, Sep 30, 2005	107.00	107.00	102.00	103.40
3363	NASDAQ	AMSC	Thu, Sep 29, 2005	103.60	107.10	102.30	107.00
3362	NASDAQ	AMSC	Wed, Sep 28, 2005	109.00	109.00	103.80	103.80
3361	NASDAQ	AMSC	Tue, Sep 27, 2005	108.90	109.80	106.40	109.30
3360	NASDAQ	AMSC	Mon, Sep 26, 2005	104.90	108.50	104.10	108.40
3359	NASDAQ	AMSC	Fri, Sep 23, 2005	102.90	103.90	100.90	103.90
3358	NASDAQ	AMSC	Thu, Sep 22, 2005	105.90	107.90	101.30	101.60
3357	NASDAQ	AMSC	Wed, Sep 21, 2005	108.30	108.30	105.20	105.90
3356	NASDAQ	AMSC	Tue, Sep 20, 2005	109.40	112.40	107.70	108.90
3355	NASDAQ	AMSC	Mon, Sep 19, 2005	109.50	110.50	107.70	107.70
3354	NASDAQ	AMSC	Fri, Sep 16, 2005	111.00	111.80	107.90	109.70
3353	NASDAQ	AMSC	Thu, Sep 15, 2005	109.20	112.10	108.30	109.80
3352	NASDAQ	AMSC	Wed, Sep 14, 2005	113.80	115.00	109.00	109.30
3351	NASDAQ	AMSC	Tue, Sep 13, 2005	118.00	118.20	112.80	113.80
3350	NASDAQ	AMSC	Mon, Sep 12, 2005	113.30	119.90	112.30	118.00
3349	NASDAQ	AMSC	Fri, Sep 9, 2005	108.90	115.30	108.40	115.10
3348	NASDAQ	AMSC	Thu, Sep 8, 2005	108.00	108.10	105.70	107.90
3347	NASDAQ	AMSC	Wed, Sep 7, 2005	105.60	108.50	104.20	108.30
3346	NASDAQ	AMSC	Tue, Sep 6, 2005	100.00	105.50	100.00	105.30
3345	NASDAQ	AMSC	Fri, Sep 2, 2005	101.00	101.00	98.00	99.50
3344	NASDAQ	AMSC	Thu, Sep 1, 2005	102.50	103.30	100.00	100.50
3343	NASDAQ	AMSC	Wed, Aug 31, 2005	97.90	102.00	96.70	102.00
3342	NASDAQ	AMSC	Tue, Aug 30, 2005	98.30	99.00	97.50	98.60
3341	NASDAQ	AMSC	Mon, Aug 29, 2005	98.60	100.20	96.60	99.10
3340	NASDAQ	AMSC	Fri, Aug 26, 2005	99.40	102.30	95.30	97.40
3339	NASDAQ	AMSC	Thu, Aug 25, 2005	100.80	101.20	99.50	100.00
3338	NASDAQ	AMSC	Wed, Aug 24, 2005	98.90	103.00	98.90	100.90
3337	NASDAQ	AMSC	Tue, Aug 23, 2005	100.00	100.60	98.10	99.30
3336	NASDAQ	AMSC	Mon, Aug 22, 2005	97.20	102.10	96.80	99.80
3335	NASDAQ	AMSC	Fri, Aug 19, 2005	97.70	97.70	96.10	96.50
3334	NASDAQ	AMSC	Thu, Aug 18, 2005	98.20	99.00	96.70	96.80
3333	NASDAQ	AMSC	Wed, Aug 17, 2005	102.30	102.90	97.60	99.20
3332	NASDAQ	AMSC	Tue, Aug 16, 2005	102.00	103.60	100.60	102.80
3331	NASDAQ	AMSC	Mon, Aug 15, 2005	97.80	102.70	97.10	102.60
3330	NASDAQ	AMSC	Fri, Aug 12, 2005	100.50	100.50	97.20	98.70
3329	NASDAQ	AMSC	Thu, Aug 11, 2005	100.00	101.50	98.80	100.60
3328	NASDAQ	AMSC	Wed, Aug 10, 2005	103.60	106.30	99.70	100.30
3327	NASDAQ	AMSC	Tue, Aug 9, 2005	101.50	108.40	99.90	103.60
3326	NASDAQ	AMSC	Mon, Aug 8, 2005	103.00	103.00	100.50	101.00
3325	NASDAQ	AMSC	Fri, Aug 5, 2005	107.20	108.90	100.60	102.30
3324	NASDAQ	AMSC	Thu, Aug 4, 2005	110.00	112.00	101.30	107.20
3323	NASDAQ	AMSC	Wed, Aug 3, 2005	115.80	115.80	110.60	113.30
3322	NASDAQ	AMSC	Tue, Aug 2, 2005	115.90	116.00	114.90	115.90
3321	NASDAQ	AMSC	Mon, Aug 1, 2005	114.60	115.90	112.60	115.30
3320	NASDAQ	AMSC	Fri, Jul 29, 2005	112.50	116.00	112.50	114.60
3319	NASDAQ	AMSC	Thu, Jul 28, 2005	112.40	114.00	111.00	112.80
3318	NASDAQ	AMSC	Wed, Jul 27, 2005	113.20	114.50	110.70	114.10
3317	NASDAQ	AMSC	Tue, Jul 26, 2005	109.80	113.50	109.80	112.10
3316	NASDAQ	AMSC	Mon, Jul 25, 2005	105.30	111.50	103.90	109.80
3315	NASDAQ	AMSC	Fri, Jul 22, 2005	100.30	102.90	99.90	102.30
3314	NASDAQ	AMSC	Thu, Jul 21, 2005	101.30	102.90	100.00	100.30
3313	NASDAQ	AMSC	Wed, Jul 20, 2005	102.70	105.50	100.00	103.60
3312	NASDAQ	AMSC	Tue, Jul 19, 2005	90.10	104.50	90.10	102.90
3311	NASDAQ	AMSC	Mon, Jul 18, 2005	90.00	91.10	89.30	90.30
3310	NASDAQ	AMSC	Fri, Jul 15, 2005	89.50	91.00	88.60	90.20
3309	NASDAQ	AMSC	Thu, Jul 14, 2005	92.50	92.50	89.60	90.40
3308	NASDAQ	AMSC	Wed, Jul 13, 2005	91.80	91.80	88.30	90.50
3307	NASDAQ	AMSC	Tue, Jul 12, 2005	93.60	93.80	89.20	91.60
3306	NASDAQ	AMSC	Mon, Jul 11, 2005	87.70	93.50	87.50	93.40
3305	NASDAQ	AMSC	Fri, Jul 8, 2005	89.10	91.10	87.00	87.70
3304	NASDAQ	AMSC	Thu, Jul 7, 2005	88.60	92.50	87.00	89.90
3303	NASDAQ	AMSC	Wed, Jul 6, 2005	92.50	92.60	88.20	89.80
3302	NASDAQ	AMSC	Tue, Jul 5, 2005	91.70	92.50	91.20	92.50
3301	NASDAQ	AMSC	Fri, Jul 1, 2005	91.50	92.50	90.30	92.40
3300	NASDAQ	AMSC	Thu, Jun 30, 2005	91.70	92.50	89.10	91.50
3299	NASDAQ	AMSC	Wed, Jun 29, 2005	91.00	91.50	89.20	91.50
3298	NASDAQ	AMSC	Tue, Jun 28, 2005	85.30	91.00	84.80	91.00
3297	NASDAQ	AMSC	Mon, Jun 27, 2005	82.00	89.10	81.00	85.10
3296	NASDAQ	AMSC	Fri, Jun 24, 2005	83.50	84.60	81.70	82.10
3295	NASDAQ	AMSC	Thu, Jun 23, 2005	89.50	91.50	83.50	83.50
3294	NASDAQ	AMSC	Wed, Jun 22, 2005	90.20	91.50	89.60	90.20
3293	NASDAQ	AMSC	Tue, Jun 21, 2005	91.40	91.80	90.00	90.40
3292	NASDAQ	AMSC	Mon, Jun 20, 2005	94.50	95.00	91.00	91.10
3291	NASDAQ	AMSC	Fri, Jun 17, 2005	90.80	96.10	90.10	95.60
3290	NASDAQ	AMSC	Thu, Jun 16, 2005	90.80	90.80	89.70	90.10
3289	NASDAQ	AMSC	Wed, Jun 15, 2005	89.40	92.00	89.00	90.40
3288	NASDAQ	AMSC	Tue, Jun 14, 2005	92.30	93.80	88.20	89.00
3287	NASDAQ	AMSC	Mon, Jun 13, 2005	84.20	94.60	82.50	94.50
3286	NASDAQ	AMSC	Fri, Jun 10, 2005	77.70	80.20	75.10	76.30
3285	NASDAQ	AMSC	Thu, Jun 9, 2005	78.60	79.70	75.10	78.10
3284	NASDAQ	AMSC	Wed, Jun 8, 2005	80.00	81.30	76.10	78.80
3283	NASDAQ	AMSC	Tue, Jun 7, 2005	83.50	84.20	79.00	79.80
3282	NASDAQ	AMSC	Mon, Jun 6, 2005	85.00	85.00	83.30	83.40
3281	NASDAQ	AMSC	Fri, Jun 3, 2005	88.10	88.50	84.10	85.00
3280	NASDAQ	AMSC	Thu, Jun 2, 2005	89.50	90.60	86.50	87.70
3279	NASDAQ	AMSC	Wed, Jun 1, 2005	88.50	89.60	86.10	89.10
3278	NASDAQ	AMSC	Tue, May 31, 2005	88.20	89.80	87.50	88.50
3277	NASDAQ	AMSC	Fri, May 27, 2005	91.40	91.40	69.10	87.50
3276	NASDAQ	AMSC	Thu, May 26, 2005	90.00	91.40	89.50	91.40
3275	NASDAQ	AMSC	Wed, May 25, 2005	90.00	93.00	88.90	89.50
3274	NASDAQ	AMSC	Tue, May 24, 2005	92.00	92.30	88.90	90.60
3273	NASDAQ	AMSC	Mon, May 23, 2005	92.00	94.20	88.20	91.30
3272	NASDAQ	AMSC	Fri, May 20, 2005	83.00	92.20	80.70	91.30
3271	NASDAQ	AMSC	Thu, May 19, 2005	84.30	84.50	82.80	83.70
3270	NASDAQ	AMSC	Wed, May 18, 2005	83.80	86.00	83.70	84.50
3269	NASDAQ	AMSC	Tue, May 17, 2005	86.40	86.50	83.60	84.80
3268	NASDAQ	AMSC	Mon, May 16, 2005	87.30	89.10	85.50	86.00
3267	NASDAQ	AMSC	Fri, May 13, 2005	92.90	93.30	87.20	87.70
3266	NASDAQ	AMSC	Thu, May 12, 2005	98.70	99.50	86.00	93.60
3265	NASDAQ	AMSC	Wed, May 11, 2005	99.10	99.20	96.10	98.80
3264	NASDAQ	AMSC	Tue, May 10, 2005	95.70	99.00	95.30	98.50
3263	NASDAQ	AMSC	Mon, May 9, 2005	93.80	96.50	93.00	95.30
3262	NASDAQ	AMSC	Fri, May 6, 2005	94.30	94.90	92.30	92.50
3261	NASDAQ	AMSC	Thu, May 5, 2005	94.20	95.00	92.10	92.60
3260	NASDAQ	AMSC	Wed, May 4, 2005	88.20	95.00	88.20	93.50
3259	NASDAQ	AMSC	Tue, May 3, 2005	90.00	90.30	85.40	87.10
3258	NASDAQ	AMSC	Mon, May 2, 2005	88.40	90.30	86.20	88.20
3257	NASDAQ	AMSC	Fri, Apr 29, 2005	86.80	88.30	86.40	87.50
3256	NASDAQ	AMSC	Thu, Apr 28, 2005	90.80	90.80	87.00	87.20
3255	NASDAQ	AMSC	Wed, Apr 27, 2005	92.20	92.20	89.60	90.80
3254	NASDAQ	AMSC	Tue, Apr 26, 2005	94.80	95.30	88.60	92.00
3253	NASDAQ	AMSC	Mon, Apr 25, 2005	97.00	99.90	92.00	93.90
3252	NASDAQ	AMSC	Fri, Apr 22, 2005	101.30	101.50	96.00	97.70
3251	NASDAQ	AMSC	Thu, Apr 21, 2005	97.10	101.80	95.00	100.00
3250	NASDAQ	AMSC	Wed, Apr 20, 2005	98.40	98.40	95.10	95.20
3249	NASDAQ	AMSC	Tue, Apr 19, 2005	97.80	98.40	95.80	97.60
3248	NASDAQ	AMSC	Mon, Apr 18, 2005	96.60	98.30	95.50	95.90
3247	NASDAQ	AMSC	Fri, Apr 15, 2005	100.40	101.10	95.70	96.20
3246	NASDAQ	AMSC	Thu, Apr 14, 2005	103.80	105.20	98.90	100.50
3245	NASDAQ	AMSC	Wed, Apr 13, 2005	108.40	110.10	103.40	104.30
3244	NASDAQ	AMSC	Tue, Apr 12, 2005	107.40	109.70	106.40	108.90
3243	NASDAQ	AMSC	Mon, Apr 11, 2005	112.50	114.50	107.50	108.40
3242	NASDAQ	AMSC	Fri, Apr 8, 2005	107.90	111.60	107.90	111.60
3241	NASDAQ	AMSC	Thu, Apr 7, 2005	105.10	108.20	104.80	107.90
3240	NASDAQ	AMSC	Wed, Apr 6, 2005	101.70	106.40	101.00	106.20
3239	NASDAQ	AMSC	Tue, Apr 5, 2005	101.30	101.30	99.00	100.20
3238	NASDAQ	AMSC	Mon, Apr 4, 2005	100.10	101.70	99.20	100.30
3237	NASDAQ	AMSC	Fri, Apr 1, 2005	102.00	102.50	98.00	100.10
3236	NASDAQ	AMSC	Thu, Mar 31, 2005	98.70	101.00	97.60	99.80
3235	NASDAQ	AMSC	Wed, Mar 30, 2005	97.80	100.50	97.80	100.20
3234	NASDAQ	AMSC	Tue, Mar 29, 2005	101.10	103.50	97.90	98.60
3233	NASDAQ	AMSC	Mon, Mar 28, 2005	102.60	105.30	101.80	102.20
3232	NASDAQ	AMSC	Thu, Mar 24, 2005	106.00	106.50	102.50	102.70
3231	NASDAQ	AMSC	Wed, Mar 23, 2005	103.00	105.30	101.40	104.20
3230	NASDAQ	AMSC	Tue, Mar 22, 2005	98.80	102.10	97.80	100.90
3229	NASDAQ	AMSC	Mon, Mar 21, 2005	100.30	101.50	97.00	98.20
3228	NASDAQ	AMSC	Fri, Mar 18, 2005	101.50	101.90	99.60	101.90
3227	NASDAQ	AMSC	Thu, Mar 17, 2005	103.10	104.40	100.00	101.90
3226	NASDAQ	AMSC	Wed, Mar 16, 2005	104.10	104.50	102.50	104.50
3225	NASDAQ	AMSC	Tue, Mar 15, 2005	105.00	105.30	103.30	104.20
3224	NASDAQ	AMSC	Mon, Mar 14, 2005	103.50	105.90	103.10	105.60
3223	NASDAQ	AMSC	Fri, Mar 11, 2005	108.90	109.00	104.10	104.20
3222	NASDAQ	AMSC	Thu, Mar 10, 2005	107.50	109.00	105.60	108.10
3221	NASDAQ	AMSC	Wed, Mar 9, 2005	108.90	112.20	106.50	106.50
3220	NASDAQ	AMSC	Tue, Mar 8, 2005	112.30	112.80	108.90	109.70
3219	NASDAQ	AMSC	Mon, Mar 7, 2005	109.50	111.80	108.80	111.10
3218	NASDAQ	AMSC	Fri, Mar 4, 2005	108.40	109.90	106.80	108.70
3217	NASDAQ	AMSC	Thu, Mar 3, 2005	108.60	109.50	107.60	108.40
3216	NASDAQ	AMSC	Wed, Mar 2, 2005	107.50	109.40	105.50	107.80
3215	NASDAQ	AMSC	Tue, Mar 1, 2005	107.30	107.70	106.30	107.20
3214	NASDAQ	AMSC	Mon, Feb 28, 2005	105.50	107.60	105.20	106.80
3213	NASDAQ	AMSC	Fri, Feb 25, 2005	105.20	106.20	105.10	105.80
3212	NASDAQ	AMSC	Thu, Feb 24, 2005	106.50	106.60	101.80	105.00
3211	NASDAQ	AMSC	Wed, Feb 23, 2005	106.10	113.60	105.10	105.40
3210	NASDAQ	AMSC	Tue, Feb 22, 2005	111.00	111.40	104.20	105.20
3209	NASDAQ	AMSC	Fri, Feb 18, 2005	113.60	116.40	111.00	111.50
3208	NASDAQ	AMSC	Thu, Feb 17, 2005	115.00	118.20	111.20	111.80
3207	NASDAQ	AMSC	Wed, Feb 16, 2005	113.40	118.20	113.40	117.10
3206	NASDAQ	AMSC	Tue, Feb 15, 2005	116.10	118.20	113.60	114.70
3205	NASDAQ	AMSC	Mon, Feb 14, 2005	116.80	118.40	115.50	117.00
3204	NASDAQ	AMSC	Fri, Feb 11, 2005	115.60	118.90	114.20	118.70
3203	NASDAQ	AMSC	Thu, Feb 10, 2005	118.00	121.50	117.00	117.00
3202	NASDAQ	AMSC	Wed, Feb 9, 2005	121.50	124.30	116.40	116.70
3201	NASDAQ	AMSC	Tue, Feb 8, 2005	122.00	123.00	120.50	122.50
3200	NASDAQ	AMSC	Mon, Feb 7, 2005	123.80	125.00	120.00	120.40
3199	NASDAQ	AMSC	Fri, Feb 4, 2005	126.00	128.30	120.60	122.70
3198	NASDAQ	AMSC	Thu, Feb 3, 2005	116.90	130.40	114.40	126.60
3197	NASDAQ	AMSC	Wed, Feb 2, 2005	115.00	116.30	111.80	113.50
3196	NASDAQ	AMSC	Tue, Feb 1, 2005	119.30	120.70	114.80	115.90
3195	NASDAQ	AMSC	Mon, Jan 31, 2005	117.50	122.50	115.20	116.90
3194	NASDAQ	AMSC	Fri, Jan 28, 2005	116.90	121.00	114.20	115.00
3193	NASDAQ	AMSC	Thu, Jan 27, 2005	118.20	120.30	116.40	117.70
3192	NASDAQ	AMSC	Wed, Jan 26, 2005	113.30	118.00	111.50	117.90
3191	NASDAQ	AMSC	Tue, Jan 25, 2005	111.30	114.40	110.00	112.60
3190	NASDAQ	AMSC	Mon, Jan 24, 2005	116.00	116.20	107.50	110.00
3189	NASDAQ	AMSC	Fri, Jan 21, 2005	115.20	118.50	114.60	116.60
3188	NASDAQ	AMSC	Thu, Jan 20, 2005	119.10	119.10	115.70	115.90
3187	NASDAQ	AMSC	Wed, Jan 19, 2005	121.50	123.30	118.20	118.50
3186	NASDAQ	AMSC	Tue, Jan 18, 2005	121.90	124.50	119.50	122.30
3185	NASDAQ	AMSC	Fri, Jan 14, 2005	117.60	121.20	117.00	120.30
3184	NASDAQ	AMSC	Thu, Jan 13, 2005	121.10	123.20	116.30	118.10
3183	NASDAQ	AMSC	Wed, Jan 12, 2005	120.00	122.40	113.10	117.60
3182	NASDAQ	AMSC	Tue, Jan 11, 2005	122.10	126.20	118.30	120.70
3181	NASDAQ	AMSC	Mon, Jan 10, 2005	129.00	130.60	125.50	129.10
3180	NASDAQ	AMSC	Fri, Jan 7, 2005	130.50	130.50	125.20	128.10
3179	NASDAQ	AMSC	Thu, Jan 6, 2005	127.70	132.40	124.40	129.20
3178	NASDAQ	AMSC	Wed, Jan 5, 2005	130.00	132.70	127.00	127.30
3177	NASDAQ	AMSC	Tue, Jan 4, 2005	142.00	145.30	129.40	132.70
3176	NASDAQ	AMSC	Mon, Jan 3, 2005	148.60	149.80	141.90	143.00
3175	NASDAQ	AMSC	Fri, Dec 31, 2004	150.00	150.40	147.60	148.90
3174	NASDAQ	AMSC	Thu, Dec 30, 2004	150.00	150.50	149.20	150.40
3173	NASDAQ	AMSC	Wed, Dec 29, 2004	150.00	150.70	147.10	149.90
3172	NASDAQ	AMSC	Tue, Dec 28, 2004	150.00	151.30	149.30	150.70
3171	NASDAQ	AMSC	Mon, Dec 27, 2004	150.70	151.10	147.50	150.00
3170	NASDAQ	AMSC	Thu, Dec 23, 2004	150.00	151.00	148.80	150.00
3169	NASDAQ	AMSC	Wed, Dec 22, 2004	149.00	150.70	148.10	149.30
3168	NASDAQ	AMSC	Tue, Dec 21, 2004	150.70	150.70	146.20	148.50
3167	NASDAQ	AMSC	Mon, Dec 20, 2004	150.70	150.70	148.30	149.30
3166	NASDAQ	AMSC	Fri, Dec 17, 2004	149.60	150.70	148.40	150.30
3165	NASDAQ	AMSC	Thu, Dec 16, 2004	150.70	150.70	147.90	150.30
3164	NASDAQ	AMSC	Wed, Dec 15, 2004	149.80	151.00	146.50	150.70
3163	NASDAQ	AMSC	Tue, Dec 14, 2004	146.00	149.70	144.80	149.50
3162	NASDAQ	AMSC	Mon, Dec 13, 2004	138.30	145.70	136.60	144.60
3161	NASDAQ	AMSC	Fri, Dec 10, 2004	139.00	139.70	134.20	137.20
3160	NASDAQ	AMSC	Thu, Dec 9, 2004	135.00	139.00	134.10	137.80
3159	NASDAQ	AMSC	Wed, Dec 8, 2004	136.70	137.70	135.60	136.40
3158	NASDAQ	AMSC	Tue, Dec 7, 2004	142.40	142.50	136.70	137.40
3157	NASDAQ	AMSC	Mon, Dec 6, 2004	137.20	141.80	135.00	140.20
3156	NASDAQ	AMSC	Fri, Dec 3, 2004	138.10	140.80	135.00	137.10
3155	NASDAQ	AMSC	Thu, Dec 2, 2004	140.50	140.80	137.70	140.80
3154	NASDAQ	AMSC	Wed, Dec 1, 2004	140.00	141.50	137.30	140.70
3153	NASDAQ	AMSC	Tue, Nov 30, 2004	139.20	143.00	137.90	138.50
3152	NASDAQ	AMSC	Mon, Nov 29, 2004	139.80	141.00	136.00	140.80
3151	NASDAQ	AMSC	Fri, Nov 26, 2004	139.90	140.00	136.00	139.60
3150	NASDAQ	AMSC	Wed, Nov 24, 2004	123.80	140.40	119.00	138.10
3149	NASDAQ	AMSC	Tue, Nov 23, 2004	123.80	126.30	120.70	122.30
3148	NASDAQ	AMSC	Mon, Nov 22, 2004	116.00	126.30	114.20	126.10
3147	NASDAQ	AMSC	Fri, Nov 19, 2004	123.30	123.30	114.80	116.60
3146	NASDAQ	AMSC	Thu, Nov 18, 2004	123.30	124.20	121.40	122.00
3145	NASDAQ	AMSC	Wed, Nov 17, 2004	118.80	124.60	118.80	122.70
3144	NASDAQ	AMSC	Tue, Nov 16, 2004	123.30	124.50	119.40	120.70
3143	NASDAQ	AMSC	Mon, Nov 15, 2004	121.00	122.60	121.00	122.40
3142	NASDAQ	AMSC	Fri, Nov 12, 2004	122.50	126.00	119.50	122.60
3141	NASDAQ	AMSC	Thu, Nov 11, 2004	124.60	126.80	121.60	125.50
3140	NASDAQ	AMSC	Wed, Nov 10, 2004	121.60	124.30	119.70	123.30
3139	NASDAQ	AMSC	Tue, Nov 9, 2004	120.50	121.70	118.50	120.70
3138	NASDAQ	AMSC	Mon, Nov 8, 2004	124.70	124.70	120.90	122.20
3137	NASDAQ	AMSC	Fri, Nov 5, 2004	124.20	125.00	121.40	122.70
3136	NASDAQ	AMSC	Thu, Nov 4, 2004	122.20	124.30	117.50	123.50
3135	NASDAQ	AMSC	Wed, Nov 3, 2004	120.00	124.10	119.00	122.00
3134	NASDAQ	AMSC	Tue, Nov 2, 2004	116.50	119.90	115.10	119.00
3133	NASDAQ	AMSC	Mon, Nov 1, 2004	116.00	116.60	113.30	115.60
3132	NASDAQ	AMSC	Fri, Oct 29, 2004	116.70	116.70	112.60	115.60
3131	NASDAQ	AMSC	Thu, Oct 28, 2004	113.50	116.00	112.00	113.10
3130	NASDAQ	AMSC	Wed, Oct 27, 2004	112.30	116.00	110.50	115.20
3129	NASDAQ	AMSC	Tue, Oct 26, 2004	110.80	114.40	107.50	113.60
3128	NASDAQ	AMSC	Mon, Oct 25, 2004	108.00	111.50	107.50	108.10
3127	NASDAQ	AMSC	Fri, Oct 22, 2004	110.10	115.00	108.00	108.30
3126	NASDAQ	AMSC	Thu, Oct 21, 2004	107.00	112.10	106.30	112.10
3125	NASDAQ	AMSC	Wed, Oct 20, 2004	105.50	107.60	105.20	106.80
3124	NASDAQ	AMSC	Tue, Oct 19, 2004	107.00	109.50	106.50	107.10
3123	NASDAQ	AMSC	Mon, Oct 18, 2004	108.40	108.90	105.50	107.00
3122	NASDAQ	AMSC	Fri, Oct 15, 2004	110.50	111.50	107.70	108.30
3121	NASDAQ	AMSC	Thu, Oct 14, 2004	117.90	117.90	109.70	109.90
3120	NASDAQ	AMSC	Wed, Oct 13, 2004	119.20	121.60	116.80	118.10
3119	NASDAQ	AMSC	Tue, Oct 12, 2004	117.50	119.20	116.00	117.70
3118	NASDAQ	AMSC	Mon, Oct 11, 2004	121.50	121.50	116.60	118.00
3117	NASDAQ	AMSC	Fri, Oct 8, 2004	126.40	127.40	120.70	121.00
3116	NASDAQ	AMSC	Thu, Oct 7, 2004	126.00	129.40	124.80	126.30
3115	NASDAQ	AMSC	Wed, Oct 6, 2004	123.80	126.50	122.80	124.80
3114	NASDAQ	AMSC	Tue, Oct 5, 2004	129.40	130.00	123.20	124.30
3113	NASDAQ	AMSC	Mon, Oct 4, 2004	129.00	132.30	128.20	128.90
3112	NASDAQ	AMSC	Fri, Oct 1, 2004	125.00	127.70	123.80	127.50
3111	NASDAQ	AMSC	Thu, Sep 30, 2004	123.50	124.80	122.80	124.20
3110	NASDAQ	AMSC	Wed, Sep 29, 2004	120.20	122.40	118.70	122.40
3109	NASDAQ	AMSC	Tue, Sep 28, 2004	116.90	120.00	116.00	119.50
3108	NASDAQ	AMSC	Mon, Sep 27, 2004	119.30	119.70	117.10	117.10
3107	NASDAQ	AMSC	Fri, Sep 24, 2004	119.90	123.00	119.50	119.50
3106	NASDAQ	AMSC	Thu, Sep 23, 2004	119.90	122.20	119.10	119.60
3105	NASDAQ	AMSC	Wed, Sep 22, 2004	128.20	128.20	122.30	123.00
3104	NASDAQ	AMSC	Tue, Sep 21, 2004	130.30	130.60	127.30	128.50
3103	NASDAQ	AMSC	Mon, Sep 20, 2004	127.20	131.00	127.20	128.80
3102	NASDAQ	AMSC	Fri, Sep 17, 2004	130.10	133.60	127.00	129.30
3101	NASDAQ	AMSC	Thu, Sep 16, 2004	128.60	130.50	127.80	129.00
3100	NASDAQ	AMSC	Wed, Sep 15, 2004	130.00	130.70	126.60	128.60
3099	NASDAQ	AMSC	Tue, Sep 14, 2004	130.30	131.30	127.80	128.60
3098	NASDAQ	AMSC	Mon, Sep 13, 2004	127.80	131.70	125.50	130.00
3097	NASDAQ	AMSC	Fri, Sep 10, 2004	125.40	127.20	121.80	126.40
3096	NASDAQ	AMSC	Thu, Sep 9, 2004	123.90	127.10	123.30	123.90
3095	NASDAQ	AMSC	Wed, Sep 8, 2004	125.50	126.40	122.70	123.60
3094	NASDAQ	AMSC	Tue, Sep 7, 2004	126.70	127.00	124.00	125.50
3093	NASDAQ	AMSC	Fri, Sep 3, 2004	128.00	132.40	124.10	125.00
3092	NASDAQ	AMSC	Thu, Sep 2, 2004	124.30	129.50	122.70	128.60
3091	NASDAQ	AMSC	Wed, Sep 1, 2004	119.90	127.10	119.10	124.60
3090	NASDAQ	AMSC	Tue, Aug 31, 2004	119.10	119.80	117.20	119.50
3089	NASDAQ	AMSC	Mon, Aug 30, 2004	116.50	119.60	116.50	118.00
3088	NASDAQ	AMSC	Fri, Aug 27, 2004	113.40	117.30	112.90	116.00
3087	NASDAQ	AMSC	Thu, Aug 26, 2004	113.30	115.40	112.90	113.10
3086	NASDAQ	AMSC	Wed, Aug 25, 2004	111.80	113.70	110.10	113.20
3085	NASDAQ	AMSC	Tue, Aug 24, 2004	110.90	111.90	109.60	111.00
3084	NASDAQ	AMSC	Mon, Aug 23, 2004	112.00	112.00	109.50	110.00
3083	NASDAQ	AMSC	Fri, Aug 20, 2004	108.60	111.40	108.60	111.00
3082	NASDAQ	AMSC	Thu, Aug 19, 2004	109.40	109.40	106.50	109.00
3081	NASDAQ	AMSC	Wed, Aug 18, 2004	108.00	109.10	103.50	109.00
3080	NASDAQ	AMSC	Tue, Aug 17, 2004	104.00	105.50	101.00	105.40
3079	NASDAQ	AMSC	Mon, Aug 16, 2004	97.90	105.30	97.50	103.40
3078	NASDAQ	AMSC	Fri, Aug 13, 2004	97.70	99.70	97.20	97.40
3077	NASDAQ	AMSC	Thu, Aug 12, 2004	101.00	102.10	98.20	99.60
3076	NASDAQ	AMSC	Wed, Aug 11, 2004	102.90	103.50	99.00	102.20
3075	NASDAQ	AMSC	Tue, Aug 10, 2004	98.50	104.20	97.70	104.20
3074	NASDAQ	AMSC	Mon, Aug 9, 2004	101.70	102.20	96.90	97.40
3073	NASDAQ	AMSC	Fri, Aug 6, 2004	100.00	101.60	100.00	100.70
3072	NASDAQ	AMSC	Thu, Aug 5, 2004	93.60	103.50	93.60	102.10
3071	NASDAQ	AMSC	Wed, Aug 4, 2004	93.80	94.40	90.50	92.40
3070	NASDAQ	AMSC	Tue, Aug 3, 2004	97.30	98.50	93.80	93.80
3069	NASDAQ	AMSC	Mon, Aug 2, 2004	101.50	101.50	95.60	96.60
3068	NASDAQ	AMSC	Fri, Jul 30, 2004	99.00	104.80	98.00	101.40
3067	NASDAQ	AMSC	Thu, Jul 29, 2004	99.10	100.60	97.00	99.00
3066	NASDAQ	AMSC	Wed, Jul 28, 2004	93.40	99.20	92.30	99.20
3065	NASDAQ	AMSC	Tue, Jul 27, 2004	90.10	94.40	90.10	93.30
3064	NASDAQ	AMSC	Mon, Jul 26, 2004	96.30	97.00	90.50	92.20
3063	NASDAQ	AMSC	Fri, Jul 23, 2004	100.50	102.90	91.90	95.80
3062	NASDAQ	AMSC	Thu, Jul 22, 2004	99.60	102.40	97.10	101.70
3061	NASDAQ	AMSC	Wed, Jul 21, 2004	108.80	108.80	99.80	100.10
3060	NASDAQ	AMSC	Tue, Jul 20, 2004	100.40	108.00	97.90	108.00
3059	NASDAQ	AMSC	Mon, Jul 19, 2004	106.80	108.20	97.40	102.90
3058	NASDAQ	AMSC	Fri, Jul 16, 2004	107.90	109.70	103.20	108.30
3057	NASDAQ	AMSC	Thu, Jul 15, 2004	112.90	112.90	107.80	109.00
3056	NASDAQ	AMSC	Wed, Jul 14, 2004	110.70	114.70	109.00	111.00
3055	NASDAQ	AMSC	Tue, Jul 13, 2004	113.60	114.50	108.50	112.80
3054	NASDAQ	AMSC	Mon, Jul 12, 2004	116.90	117.00	113.50	114.50
3053	NASDAQ	AMSC	Fri, Jul 9, 2004	116.80	117.90	115.00	117.30
3052	NASDAQ	AMSC	Thu, Jul 8, 2004	121.40	121.70	112.40	116.20
3051	NASDAQ	AMSC	Wed, Jul 7, 2004	122.00	124.50	121.60	121.60
3050	NASDAQ	AMSC	Tue, Jul 6, 2004	125.70	127.30	121.70	122.70
3049	NASDAQ	AMSC	Fri, Jul 2, 2004	126.50	127.80	122.60	125.40
3048	NASDAQ	AMSC	Thu, Jul 1, 2004	130.50	130.90	126.60	128.30
3047	NASDAQ	AMSC	Wed, Jun 30, 2004	132.00	132.10	129.40	130.80
3046	NASDAQ	AMSC	Tue, Jun 29, 2004	130.50	134.10	129.00	131.10
3045	NASDAQ	AMSC	Mon, Jun 28, 2004	137.70	137.70	128.00	130.30
3044	NASDAQ	AMSC	Fri, Jun 25, 2004	140.20	142.30	131.60	136.50
3043	NASDAQ	AMSC	Thu, Jun 24, 2004	137.10	142.20	135.30	139.10
3042	NASDAQ	AMSC	Wed, Jun 23, 2004	137.50	137.90	134.60	136.80
3041	NASDAQ	AMSC	Tue, Jun 22, 2004	137.90	137.90	132.70	136.60
3040	NASDAQ	AMSC	Mon, Jun 21, 2004	129.50	137.80	129.50	136.00
3039	NASDAQ	AMSC	Fri, Jun 18, 2004	128.00	130.40	126.30	130.10
3038	NASDAQ	AMSC	Thu, Jun 17, 2004	124.40	129.20	123.50	127.30
3037	NASDAQ	AMSC	Wed, Jun 16, 2004	126.00	126.00	123.60	125.00
3036	NASDAQ	AMSC	Tue, Jun 15, 2004	124.10	126.00	123.30	125.90
3035	NASDAQ	AMSC	Mon, Jun 14, 2004	123.80	125.00	122.80	123.80
3034	NASDAQ	AMSC	Thu, Jun 10, 2004	124.00	125.40	122.60	123.80
3033	NASDAQ	AMSC	Wed, Jun 9, 2004	122.60	125.90	122.60	122.60
3032	NASDAQ	AMSC	Tue, Jun 8, 2004	125.90	126.90	121.90	124.10
3031	NASDAQ	AMSC	Mon, Jun 7, 2004	122.50	127.40	122.50	127.40
3030	NASDAQ	AMSC	Fri, Jun 4, 2004	122.60	124.90	122.00	122.60
3029	NASDAQ	AMSC	Thu, Jun 3, 2004	125.30	127.30	122.50	123.80
3028	NASDAQ	AMSC	Wed, Jun 2, 2004	125.20	127.50	125.20	125.50
3027	NASDAQ	AMSC	Tue, Jun 1, 2004	123.60	126.20	120.50	125.90
3026	NASDAQ	AMSC	Fri, May 28, 2004	125.70	128.40	124.20	125.60
3025	NASDAQ	AMSC	Thu, May 27, 2004	125.60	129.20	123.60	125.50
3024	NASDAQ	AMSC	Wed, May 26, 2004	126.50	127.50	125.60	127.00
3023	NASDAQ	AMSC	Tue, May 25, 2004	121.20	125.90	118.40	125.10
3022	NASDAQ	AMSC	Mon, May 24, 2004	117.30	120.40	115.50	119.50
3021	NASDAQ	AMSC	Fri, May 21, 2004	116.50	119.50	116.10	116.90
3020	NASDAQ	AMSC	Thu, May 20, 2004	117.50	119.00	116.00	116.10
3019	NASDAQ	AMSC	Wed, May 19, 2004	123.10	128.30	117.60	118.60
3018	NASDAQ	AMSC	Tue, May 18, 2004	115.00	123.60	115.00	122.60
3017	NASDAQ	AMSC	Mon, May 17, 2004	117.40	118.70	113.70	115.20
3016	NASDAQ	AMSC	Fri, May 14, 2004	122.30	122.70	119.30	120.10
3015	NASDAQ	AMSC	Thu, May 13, 2004	115.40	125.00	109.00	120.00
3014	NASDAQ	AMSC	Wed, May 12, 2004	119.20	121.80	112.90	115.00
3013	NASDAQ	AMSC	Tue, May 11, 2004	121.20	123.40	119.60	120.30
3012	NASDAQ	AMSC	Mon, May 10, 2004	126.50	126.90	117.00	123.20
3011	NASDAQ	AMSC	Fri, May 7, 2004	128.70	133.50	126.50	128.20
3010	NASDAQ	AMSC	Thu, May 6, 2004	129.80	131.40	127.00	128.00
3009	NASDAQ	AMSC	Wed, May 5, 2004	128.60	131.40	128.60	130.70
3008	NASDAQ	AMSC	Tue, May 4, 2004	127.10	131.00	125.30	128.60
3007	NASDAQ	AMSC	Mon, May 3, 2004	124.30	130.40	122.20	128.60
3006	NASDAQ	AMSC	Fri, Apr 30, 2004	131.30	132.10	121.40	126.30
3005	NASDAQ	AMSC	Thu, Apr 29, 2004	136.70	137.50	128.20	130.70
3004	NASDAQ	AMSC	Wed, Apr 28, 2004	137.00	138.40	132.50	136.30
3003	NASDAQ	AMSC	Tue, Apr 27, 2004	141.90	142.50	135.50	137.70
3002	NASDAQ	AMSC	Mon, Apr 26, 2004	142.10	143.90	139.20	139.40
3001	NASDAQ	AMSC	Fri, Apr 23, 2004	139.10	144.30	139.10	143.50
3000	NASDAQ	AMSC	Thu, Apr 22, 2004	139.00	141.70	137.10	141.70
2999	NASDAQ	AMSC	Wed, Apr 21, 2004	141.30	141.30	137.60	139.60
2998	NASDAQ	AMSC	Tue, Apr 20, 2004	141.30	143.40	139.00	139.00
2997	NASDAQ	AMSC	Mon, Apr 19, 2004	140.90	141.80	139.40	140.80
2996	NASDAQ	AMSC	Fri, Apr 16, 2004	139.60	141.70	135.60	140.90
2995	NASDAQ	AMSC	Thu, Apr 15, 2004	139.80	142.50	139.00	139.20
2994	NASDAQ	AMSC	Wed, Apr 14, 2004	140.50	145.00	139.50	139.60
2993	NASDAQ	AMSC	Tue, Apr 13, 2004	150.00	150.70	140.70	142.00
2992	NASDAQ	AMSC	Mon, Apr 12, 2004	147.00	150.70	145.80	149.50
2991	NASDAQ	AMSC	Thu, Apr 8, 2004	145.00	148.20	143.60	145.80
2990	NASDAQ	AMSC	Wed, Apr 7, 2004	141.00	143.90	137.80	143.50
2989	NASDAQ	AMSC	Tue, Apr 6, 2004	138.00	142.00	135.50	140.40
2988	NASDAQ	AMSC	Mon, Apr 5, 2004	135.60	139.80	134.00	138.50
2987	NASDAQ	AMSC	Fri, Apr 2, 2004	135.00	138.80	132.80	135.00
2986	NASDAQ	AMSC	Thu, Apr 1, 2004	131.00	138.00	129.60	132.50
2985	NASDAQ	AMSC	Wed, Mar 31, 2004	129.50	132.00	126.40	128.40
2984	NASDAQ	AMSC	Tue, Mar 30, 2004	131.30	132.90	127.50	129.10
2983	NASDAQ	AMSC	Mon, Mar 29, 2004	122.20	133.20	122.10	132.80
2982	NASDAQ	AMSC	Fri, Mar 26, 2004	119.10	122.50	115.60	121.80
2981	NASDAQ	AMSC	Thu, Mar 25, 2004	112.90	119.70	112.90	117.00
2980	NASDAQ	AMSC	Wed, Mar 24, 2004	115.60	117.70	112.90	113.00
2979	NASDAQ	AMSC	Tue, Mar 23, 2004	117.80	122.50	115.70	115.90
2978	NASDAQ	AMSC	Mon, Mar 22, 2004	118.80	121.00	115.70	117.80
2977	NASDAQ	AMSC	Fri, Mar 19, 2004	117.70	125.30	116.10	118.10
2976	NASDAQ	AMSC	Thu, Mar 18, 2004	121.50	121.50	114.00	116.50
2975	NASDAQ	AMSC	Wed, Mar 17, 2004	114.00	121.90	114.00	121.10
2974	NASDAQ	AMSC	Tue, Mar 16, 2004	120.90	122.00	114.10	115.40
2973	NASDAQ	AMSC	Mon, Mar 15, 2004	123.80	123.80	118.50	118.90
2972	NASDAQ	AMSC	Fri, Mar 12, 2004	124.60	126.00	120.70	123.90
2971	NASDAQ	AMSC	Thu, Mar 11, 2004	124.10	127.10	121.60	122.90
2970	NASDAQ	AMSC	Wed, Mar 10, 2004	128.40	129.80	124.50	124.60
2969	NASDAQ	AMSC	Tue, Mar 9, 2004	130.30	130.30	124.50	125.20
2968	NASDAQ	AMSC	Mon, Mar 8, 2004	131.10	133.10	127.60	127.60
2967	NASDAQ	AMSC	Fri, Mar 5, 2004	125.50	131.60	124.40	130.80
2966	NASDAQ	AMSC	Thu, Mar 4, 2004	127.50	130.00	125.20	125.50
2965	NASDAQ	AMSC	Wed, Mar 3, 2004	133.00	133.80	126.30	129.60
2964	NASDAQ	AMSC	Tue, Mar 2, 2004	136.10	139.60	133.00	133.60
2963	NASDAQ	AMSC	Mon, Mar 1, 2004	138.60	140.00	136.30	137.00
2962	NASDAQ	AMSC	Fri, Feb 27, 2004	138.90	140.30	137.50	137.90
2961	NASDAQ	AMSC	Thu, Feb 26, 2004	138.90	141.10	137.20	141.00
2960	NASDAQ	AMSC	Wed, Feb 25, 2004	135.20	140.00	134.90	137.80
2959	NASDAQ	AMSC	Tue, Feb 24, 2004	142.50	143.20	134.90	135.30
2958	NASDAQ	AMSC	Mon, Feb 23, 2004	150.00	150.80	140.80	144.80
2957	NASDAQ	AMSC	Fri, Feb 20, 2004	156.00	156.00	147.70	150.70
2956	NASDAQ	AMSC	Thu, Feb 19, 2004	160.00	162.40	156.70	156.70
2955	NASDAQ	AMSC	Wed, Feb 18, 2004	160.20	164.30	158.50	159.90
2954	NASDAQ	AMSC	Tue, Feb 17, 2004	154.00	161.60	153.80	160.00
2953	NASDAQ	AMSC	Fri, Feb 13, 2004	160.50	162.50	153.80	156.10
2952	NASDAQ	AMSC	Thu, Feb 12, 2004	160.00	165.70	159.00	159.20
2951	NASDAQ	AMSC	Wed, Feb 11, 2004	157.50	165.00	157.40	159.90
2950	NASDAQ	AMSC	Tue, Feb 10, 2004	154.70	158.40	152.80	156.60
2949	NASDAQ	AMSC	Mon, Feb 9, 2004	153.00	159.50	152.70	152.80
2948	NASDAQ	AMSC	Fri, Feb 6, 2004	152.40	166.00	151.20	154.90
2947	NASDAQ	AMSC	Thu, Feb 5, 2004	149.80	152.40	145.10	152.30
2946	NASDAQ	AMSC	Wed, Feb 4, 2004	170.00	172.40	160.30	162.90
2945	NASDAQ	AMSC	Tue, Feb 3, 2004	161.90	170.90	161.90	170.90
2944	NASDAQ	AMSC	Mon, Feb 2, 2004	167.90	171.90	161.60	163.00
2943	NASDAQ	AMSC	Fri, Jan 30, 2004	156.00	166.30	155.20	166.10
2942	NASDAQ	AMSC	Thu, Jan 29, 2004	158.90	160.00	151.20	155.60
2941	NASDAQ	AMSC	Wed, Jan 28, 2004	175.20	176.10	159.10	159.50
2940	NASDAQ	AMSC	Tue, Jan 27, 2004	190.40	192.20	182.50	183.00
2939	NASDAQ	AMSC	Mon, Jan 26, 2004	185.40	190.30	178.10	190.30
2938	NASDAQ	AMSC	Fri, Jan 23, 2004	184.60	186.80	172.50	176.90
2937	NASDAQ	AMSC	Thu, Jan 22, 2004	197.00	199.50	181.20	185.50
2936	NASDAQ	AMSC	Wed, Jan 21, 2004	185.00	196.90	182.90	196.90
2935	NASDAQ	AMSC	Tue, Jan 20, 2004	169.50	187.90	169.30	183.90
2934	NASDAQ	AMSC	Fri, Jan 16, 2004	167.50	169.70	165.80	167.00
2933	NASDAQ	AMSC	Thu, Jan 15, 2004	169.50	172.00	165.50	166.60
2932	NASDAQ	AMSC	Wed, Jan 14, 2004	162.80	177.00	162.60	169.10
2931	NASDAQ	AMSC	Tue, Jan 13, 2004	169.00	170.00	160.00	162.60
2930	NASDAQ	AMSC	Mon, Jan 12, 2004	165.90	168.80	164.50	167.70
2929	NASDAQ	AMSC	Fri, Jan 9, 2004	164.70	167.50	160.00	165.00
2928	NASDAQ	AMSC	Thu, Jan 8, 2004	158.00	164.00	156.30	164.00
2927	NASDAQ	AMSC	Wed, Jan 7, 2004	153.30	156.30	151.60	156.30
2926	NASDAQ	AMSC	Tue, Jan 6, 2004	142.00	152.00	141.70	151.10
2925	NASDAQ	AMSC	Mon, Jan 5, 2004	144.00	145.00	140.00	143.90
2924	NASDAQ	AMSC	Fri, Jan 2, 2004	138.60	140.50	135.30	137.10
2923	NASDAQ	AMSC	Wed, Dec 31, 2003	144.30	146.00	137.90	138.60
2922	NASDAQ	AMSC	Tue, Dec 30, 2003	137.40	146.70	136.60	144.40
2921	NASDAQ	AMSC	Mon, Dec 29, 2003	120.00	136.50	120.00	136.00
2920	NASDAQ	AMSC	Fri, Dec 26, 2003	118.50	121.50	118.00	119.60
2919	NASDAQ	AMSC	Wed, Dec 24, 2003	122.60	122.60	117.60	118.50
2918	NASDAQ	AMSC	Tue, Dec 23, 2003	120.50	122.40	117.50	120.30
2917	NASDAQ	AMSC	Mon, Dec 22, 2003	122.40	122.40	119.40	120.50
2916	NASDAQ	AMSC	Fri, Dec 19, 2003	115.40	125.00	115.40	122.50
2915	NASDAQ	AMSC	Thu, Dec 18, 2003	113.10	116.00	112.90	116.00
2914	NASDAQ	AMSC	Wed, Dec 17, 2003	114.50	116.50	112.50	113.50
2913	NASDAQ	AMSC	Tue, Dec 16, 2003	113.40	116.90	112.90	115.20
2912	NASDAQ	AMSC	Mon, Dec 15, 2003	118.70	119.00	111.80	111.80
2911	NASDAQ	AMSC	Fri, Dec 12, 2003	116.80	117.50	115.00	115.50
2910	NASDAQ	AMSC	Thu, Dec 11, 2003	110.50	117.00	107.10	116.90
2909	NASDAQ	AMSC	Wed, Dec 10, 2003	116.10	117.00	106.20	111.10
2908	NASDAQ	AMSC	Tue, Dec 9, 2003	116.50	119.00	115.00	116.60
2907	NASDAQ	AMSC	Mon, Dec 8, 2003	116.40	117.90	113.50	117.30
2906	NASDAQ	AMSC	Fri, Dec 5, 2003	115.80	118.50	114.50	115.90
2905	NASDAQ	AMSC	Thu, Dec 4, 2003	124.90	124.90	114.90	115.30
2904	NASDAQ	AMSC	Wed, Dec 3, 2003	120.00	124.10	117.50	122.80
2903	NASDAQ	AMSC	Tue, Dec 2, 2003	115.00	122.50	113.00	117.10
2902	NASDAQ	AMSC	Mon, Dec 1, 2003	108.90	114.50	107.50	114.00
2901	NASDAQ	AMSC	Fri, Nov 28, 2003	105.30	106.60	104.20	105.30
2900	NASDAQ	AMSC	Wed, Nov 26, 2003	107.60	108.20	101.80	105.20
2899	NASDAQ	AMSC	Tue, Nov 25, 2003	105.00	107.00	103.00	105.30
2898	NASDAQ	AMSC	Mon, Nov 24, 2003	105.00	106.90	102.30	103.80
2897	NASDAQ	AMSC	Fri, Nov 21, 2003	107.70	107.70	103.60	103.80
2896	NASDAQ	AMSC	Thu, Nov 20, 2003	107.00	108.80	105.60	105.80
2895	NASDAQ	AMSC	Wed, Nov 19, 2003	106.50	107.50	103.50	107.50
2894	NASDAQ	AMSC	Tue, Nov 18, 2003	110.60	111.10	103.50	104.00
2893	NASDAQ	AMSC	Mon, Nov 17, 2003	111.10	111.50	107.00	108.60
2892	NASDAQ	AMSC	Fri, Nov 14, 2003	106.50	117.40	106.10	110.50
2891	NASDAQ	AMSC	Thu, Nov 13, 2003	110.00	110.00	105.60	106.20
2890	NASDAQ	AMSC	Wed, Nov 12, 2003	109.40	109.50	103.90	108.50
2889	NASDAQ	AMSC	Tue, Nov 11, 2003	109.00	109.30	103.40	108.00
2888	NASDAQ	AMSC	Mon, Nov 10, 2003	103.90	109.60	100.50	109.00
2887	NASDAQ	AMSC	Fri, Nov 7, 2003	101.80	105.80	101.50	103.90
2886	NASDAQ	AMSC	Thu, Nov 6, 2003	96.90	101.50	91.00	101.50
2885	NASDAQ	AMSC	Wed, Nov 5, 2003	98.70	100.00	97.00	97.00
2884	NASDAQ	AMSC	Tue, Nov 4, 2003	100.40	100.40	98.00	99.40
2883	NASDAQ	AMSC	Mon, Nov 3, 2003	95.20	102.20	95.10	99.20
2882	NASDAQ	AMSC	Fri, Oct 31, 2003	101.10	102.00	95.50	96.50
2881	NASDAQ	AMSC	Thu, Oct 30, 2003	102.50	102.50	99.20	100.50
2880	NASDAQ	AMSC	Wed, Oct 29, 2003	102.20	102.50	99.80	102.50
2879	NASDAQ	AMSC	Tue, Oct 28, 2003	96.10	102.00	95.80	100.90
2878	NASDAQ	AMSC	Mon, Oct 27, 2003	94.00	96.50	94.00	95.10
2877	NASDAQ	AMSC	Fri, Oct 24, 2003	97.50	98.00	91.50	93.80
2876	NASDAQ	AMSC	Thu, Oct 23, 2003	102.70	103.40	96.50	97.50
2875	NASDAQ	AMSC	Wed, Oct 22, 2003	104.60	106.00	103.10	105.00
2874	NASDAQ	AMSC	Tue, Oct 21, 2003	105.60	105.90	102.60	105.80
2873	NASDAQ	AMSC	Mon, Oct 20, 2003	104.50	108.20	102.60	103.90
2872	NASDAQ	AMSC	Fri, Oct 17, 2003	107.50	111.90	102.20	103.40
2871	NASDAQ	AMSC	Thu, Oct 16, 2003	105.60	106.70	103.30	104.50
2870	NASDAQ	AMSC	Wed, Oct 15, 2003	110.50	110.60	104.00	105.70
2869	NASDAQ	AMSC	Tue, Oct 14, 2003	111.90	111.90	107.50	109.50
2868	NASDAQ	AMSC	Mon, Oct 13, 2003	111.10	112.00	108.00	111.40
2867	NASDAQ	AMSC	Fri, Oct 10, 2003	115.50	115.50	110.30	110.40
2866	NASDAQ	AMSC	Thu, Oct 9, 2003	115.50	117.20	113.00	113.70
2865	NASDAQ	AMSC	Wed, Oct 8, 2003	113.50	118.70	111.90	112.70
2864	NASDAQ	AMSC	Tue, Oct 7, 2003	108.00	114.60	106.50	111.80
2863	NASDAQ	AMSC	Mon, Oct 6, 2003	109.60	111.50	101.50	109.50
2862	NASDAQ	AMSC	Fri, Oct 3, 2003	105.00	116.80	104.00	110.00
2861	NASDAQ	AMSC	Thu, Oct 2, 2003	107.90	111.30	105.00	105.10
2860	NASDAQ	AMSC	Wed, Oct 1, 2003	104.00	107.50	103.70	106.50
2859	NASDAQ	AMSC	Tue, Sep 30, 2003	103.00	104.80	99.40	103.30
2858	NASDAQ	AMSC	Mon, Sep 29, 2003	100.10	105.60	100.10	102.90
2857	NASDAQ	AMSC	Fri, Sep 26, 2003	108.10	108.30	100.00	100.10
2856	NASDAQ	AMSC	Thu, Sep 25, 2003	113.50	114.70	108.70	108.80
2855	NASDAQ	AMSC	Wed, Sep 24, 2003	113.80	120.80	110.60	113.00
2854	NASDAQ	AMSC	Tue, Sep 23, 2003	110.10	114.40	110.10	113.00
2853	NASDAQ	AMSC	Mon, Sep 22, 2003	115.00	116.50	108.50	111.50
2852	NASDAQ	AMSC	Fri, Sep 19, 2003	113.10	118.40	113.00	116.50
2851	NASDAQ	AMSC	Thu, Sep 18, 2003	115.40	117.50	110.40	116.10
2850	NASDAQ	AMSC	Wed, Sep 17, 2003	111.90	113.50	110.00	112.50
2849	NASDAQ	AMSC	Tue, Sep 16, 2003	115.10	116.80	108.00	113.20
2848	NASDAQ	AMSC	Mon, Sep 15, 2003	121.00	122.10	115.00	115.50
2847	NASDAQ	AMSC	Fri, Sep 12, 2003	122.90	124.40	119.00	123.10
2846	NASDAQ	AMSC	Thu, Sep 11, 2003	123.50	126.00	119.00	121.90
2845	NASDAQ	AMSC	Wed, Sep 10, 2003	126.10	128.90	122.00	122.50
2844	NASDAQ	AMSC	Tue, Sep 9, 2003	129.50	131.00	126.00	126.10
2843	NASDAQ	AMSC	Mon, Sep 8, 2003	133.20	134.60	129.50	130.30
2842	NASDAQ	AMSC	Fri, Sep 5, 2003	130.00	133.90	129.20	133.00
2841	NASDAQ	AMSC	Thu, Sep 4, 2003	133.40	135.20	128.50	132.40
2840	NASDAQ	AMSC	Wed, Sep 3, 2003	132.30	138.50	129.50	133.00
2839	NASDAQ	AMSC	Tue, Sep 2, 2003	127.00	130.00	122.40	129.50
2838	NASDAQ	AMSC	Fri, Aug 29, 2003	125.00	127.10	120.00	121.90
2837	NASDAQ	AMSC	Thu, Aug 28, 2003	122.50	127.00	122.50	123.60
2836	NASDAQ	AMSC	Wed, Aug 27, 2003	132.60	135.00	122.80	124.70
2835	NASDAQ	AMSC	Tue, Aug 26, 2003	121.00	137.60	121.00	134.00
2834	NASDAQ	AMSC	Mon, Aug 25, 2003	112.10	122.00	110.00	122.00
2833	NASDAQ	AMSC	Fri, Aug 22, 2003	121.50	122.50	115.70	116.00
2832	NASDAQ	AMSC	Thu, Aug 21, 2003	115.20	117.50	110.50	114.50
2831	NASDAQ	AMSC	Wed, Aug 20, 2003	118.20	119.40	110.00	111.90
2830	NASDAQ	AMSC	Tue, Aug 19, 2003	117.10	118.50	113.20	117.70
2829	NASDAQ	AMSC	Mon, Aug 18, 2003	129.50	129.70	117.80	121.60
2828	NASDAQ	AMSC	Fri, Aug 15, 2003	113.00	134.90	113.00	132.00
2827	NASDAQ	AMSC	Thu, Aug 14, 2003	87.40	94.90	86.90	92.50
2826	NASDAQ	AMSC	Wed, Aug 13, 2003	83.00	92.40	82.90	87.60
2825	NASDAQ	AMSC	Tue, Aug 12, 2003	78.50	83.00	78.10	82.10
2824	NASDAQ	AMSC	Mon, Aug 11, 2003	76.50	79.20	76.10	78.10
2823	NASDAQ	AMSC	Fri, Aug 8, 2003	76.00	78.40	75.10	77.50
2822	NASDAQ	AMSC	Thu, Aug 7, 2003	79.20	80.00	72.60	78.40
2821	NASDAQ	AMSC	Wed, Aug 6, 2003	80.10	83.00	78.00	79.50
2820	NASDAQ	AMSC	Tue, Aug 5, 2003	87.20	87.90	82.80	83.10
2819	NASDAQ	AMSC	Mon, Aug 4, 2003	87.80	87.90	82.50	86.80
2818	NASDAQ	AMSC	Fri, Aug 1, 2003	86.20	86.20	81.20	83.90
2817	NASDAQ	AMSC	Thu, Jul 31, 2003	85.00	85.00	78.90	80.40
2816	NASDAQ	AMSC	Wed, Jul 30, 2003	88.00	95.00	79.90	82.60
2815	NASDAQ	AMSC	Tue, Jul 29, 2003	74.40	86.00	71.20	85.00
2814	NASDAQ	AMSC	Mon, Jul 28, 2003	69.40	74.40	65.00	71.00
2813	NASDAQ	AMSC	Fri, Jul 25, 2003	68.80	68.80	63.70	67.70
2812	NASDAQ	AMSC	Thu, Jul 24, 2003	63.90	68.90	61.90	65.10
2811	NASDAQ	AMSC	Wed, Jul 23, 2003	62.90	62.90	59.00	61.20
2810	NASDAQ	AMSC	Tue, Jul 22, 2003	56.80	62.00	56.80	61.00
2809	NASDAQ	AMSC	Mon, Jul 21, 2003	57.40	60.20	57.20	59.10
2808	NASDAQ	AMSC	Fri, Jul 18, 2003	58.40	62.50	58.40	60.40
2807	NASDAQ	AMSC	Thu, Jul 17, 2003	55.90	60.00	55.50	58.10
2806	NASDAQ	AMSC	Wed, Jul 16, 2003	61.00	62.00	57.00	59.50
2805	NASDAQ	AMSC	Tue, Jul 15, 2003	62.20	62.20	59.60	61.40
2804	NASDAQ	AMSC	Mon, Jul 14, 2003	62.00	64.80	60.30	62.30
2803	NASDAQ	AMSC	Fri, Jul 11, 2003	53.50	57.90	51.70	57.90
2802	NASDAQ	AMSC	Thu, Jul 10, 2003	52.00	52.30	50.30	51.60
2801	NASDAQ	AMSC	Wed, Jul 9, 2003	51.20	53.00	51.00	51.00
2800	NASDAQ	AMSC	Tue, Jul 8, 2003	50.70	51.70	49.50	49.70
2799	NASDAQ	AMSC	Mon, Jul 7, 2003	56.00	56.40	50.50	50.60
2798	NASDAQ	AMSC	Thu, Jul 3, 2003	58.30	60.10	52.50	52.60
2797	NASDAQ	AMSC	Wed, Jul 2, 2003	62.50	62.50	58.80	59.70
2796	NASDAQ	AMSC	Tue, Jul 1, 2003	60.00	64.50	56.90	62.10
2795	NASDAQ	AMSC	Mon, Jun 30, 2003	59.10	65.00	55.40	61.30
2794	NASDAQ	AMSC	Fri, Jun 27, 2003	55.20	73.50	53.20	59.10
2793	NASDAQ	AMSC	Thu, Jun 26, 2003	45.10	55.00	44.90	53.90
2792	NASDAQ	AMSC	Wed, Jun 25, 2003	46.40	47.40	44.30	45.10
2791	NASDAQ	AMSC	Tue, Jun 24, 2003	44.00	46.70	44.00	45.60
2790	NASDAQ	AMSC	Mon, Jun 23, 2003	46.80	47.90	42.00	42.10
2789	NASDAQ	AMSC	Fri, Jun 20, 2003	47.50	49.30	46.60	46.60
2788	NASDAQ	AMSC	Thu, Jun 19, 2003	46.00	49.30	45.60	47.40
2787	NASDAQ	AMSC	Wed, Jun 18, 2003	46.40	46.50	44.90	45.00
2786	NASDAQ	AMSC	Tue, Jun 17, 2003	43.70	45.60	43.70	45.50
2785	NASDAQ	AMSC	Mon, Jun 16, 2003	43.40	44.80	42.70	44.50
2784	NASDAQ	AMSC	Fri, Jun 13, 2003	42.60	45.60	42.00	43.60
2783	NASDAQ	AMSC	Thu, Jun 12, 2003	43.10	44.40	42.20	42.70
2782	NASDAQ	AMSC	Wed, Jun 11, 2003	45.90	45.90	42.60	44.10
2781	NASDAQ	AMSC	Tue, Jun 10, 2003	45.50	48.50	43.50	45.00
2780	NASDAQ	AMSC	Mon, Jun 9, 2003	52.20	52.20	45.60	46.00
2779	NASDAQ	AMSC	Fri, Jun 6, 2003	51.80	57.50	50.00	51.00
2778	NASDAQ	AMSC	Thu, Jun 5, 2003	53.10	53.80	51.10	51.20
2777	NASDAQ	AMSC	Wed, Jun 4, 2003	54.30	54.30	47.40	53.40
2776	NASDAQ	AMSC	Tue, Jun 3, 2003	48.00	54.90	46.00	54.30
2775	NASDAQ	AMSC	Mon, Jun 2, 2003	44.00	47.90	42.60	47.00
2774	NASDAQ	AMSC	Fri, May 30, 2003	41.20	42.80	40.10	41.60
2773	NASDAQ	AMSC	Thu, May 29, 2003	41.80	43.00	40.00	40.00
2772	NASDAQ	AMSC	Wed, May 28, 2003	37.40	41.80	37.00	41.50
2771	NASDAQ	AMSC	Tue, May 27, 2003	35.80	37.40	35.20	37.40
2770	NASDAQ	AMSC	Fri, May 23, 2003	35.50	36.20	35.50	36.00
2769	NASDAQ	AMSC	Thu, May 22, 2003	35.00	36.10	34.50	36.10
2768	NASDAQ	AMSC	Wed, May 21, 2003	34.80	35.80	34.80	35.70
2767	NASDAQ	AMSC	Tue, May 20, 2003	34.30	35.50	34.10	35.00
2766	NASDAQ	AMSC	Mon, May 19, 2003	37.30	37.40	34.80	35.10
2765	NASDAQ	AMSC	Fri, May 16, 2003	34.20	37.50	33.50	36.60
2764	NASDAQ	AMSC	Thu, May 15, 2003	36.90	37.50	35.80	36.60
2763	NASDAQ	AMSC	Wed, May 14, 2003	36.50	37.00	34.60	36.20
2762	NASDAQ	AMSC	Tue, May 13, 2003	34.10	36.00	34.00	35.40
2761	NASDAQ	AMSC	Mon, May 12, 2003	33.00	35.00	33.00	34.80
2760	NASDAQ	AMSC	Fri, May 9, 2003	35.50	35.50	34.60	35.30
2759	NASDAQ	AMSC	Thu, May 8, 2003	37.00	37.60	35.50	35.50
2758	NASDAQ	AMSC	Wed, May 7, 2003	36.90	37.70	36.60	37.00
2757	NASDAQ	AMSC	Tue, May 6, 2003	36.50	37.10	36.20	36.60
2756	NASDAQ	AMSC	Mon, May 5, 2003	36.50	37.10	36.10	37.00
2755	NASDAQ	AMSC	Fri, May 2, 2003	36.10	37.00	36.10	36.40
2754	NASDAQ	AMSC	Thu, May 1, 2003	36.80	36.80	36.00	36.40
2753	NASDAQ	AMSC	Wed, Apr 30, 2003	36.80	37.10	35.20	36.50
2752	NASDAQ	AMSC	Tue, Apr 29, 2003	37.00	37.00	35.00	36.60
2751	NASDAQ	AMSC	Mon, Apr 28, 2003	35.00	36.80	35.00	36.80
2750	NASDAQ	AMSC	Fri, Apr 25, 2003	37.00	37.00	35.80	35.90
2749	NASDAQ	AMSC	Thu, Apr 24, 2003	37.00	37.00	35.80	36.10
2748	NASDAQ	AMSC	Wed, Apr 23, 2003	35.20	37.20	35.10	36.90
2747	NASDAQ	AMSC	Tue, Apr 22, 2003	34.00	34.50	33.00	34.50
2746	NASDAQ	AMSC	Mon, Apr 21, 2003	35.00	35.00	34.00	34.00
2745	NASDAQ	AMSC	Thu, Apr 17, 2003	35.00	35.00	33.90	34.40
2744	NASDAQ	AMSC	Wed, Apr 16, 2003	35.50	35.50	32.20	34.00
2743	NASDAQ	AMSC	Tue, Apr 15, 2003	32.90	32.90	31.80	32.00
2742	NASDAQ	AMSC	Mon, Apr 14, 2003	32.50	32.60	31.80	32.10
2741	NASDAQ	AMSC	Fri, Apr 11, 2003	33.80	33.80	32.00	32.00
2740	NASDAQ	AMSC	Thu, Apr 10, 2003	33.50	34.00	32.40	32.60
2739	NASDAQ	AMSC	Wed, Apr 9, 2003	34.50	34.50	32.50	33.20
2738	NASDAQ	AMSC	Tue, Apr 8, 2003	33.70	34.30	32.60	34.10
2737	NASDAQ	AMSC	Mon, Apr 7, 2003	35.30	36.00	33.10	34.00
2736	NASDAQ	AMSC	Fri, Apr 4, 2003	34.70	34.70	33.20	34.30
2735	NASDAQ	AMSC	Thu, Apr 3, 2003	36.50	36.90	33.20	33.20
2734	NASDAQ	AMSC	Wed, Apr 2, 2003	34.90	35.30	32.70	35.20
2733	NASDAQ	AMSC	Tue, Apr 1, 2003	39.10	39.90	33.00	33.40
2732	NASDAQ	AMSC	Mon, Mar 31, 2003	39.70	40.40	35.90	36.00
2731	NASDAQ	AMSC	Fri, Mar 28, 2003	40.10	41.80	39.10	39.10
2730	NASDAQ	AMSC	Thu, Mar 27, 2003	38.40	40.00	38.40	39.70
2729	NASDAQ	AMSC	Wed, Mar 26, 2003	41.00	41.00	39.00	39.10
2728	NASDAQ	AMSC	Tue, Mar 25, 2003	40.50	41.00	39.00	39.80
2727	NASDAQ	AMSC	Mon, Mar 24, 2003	36.50	40.00	36.50	39.10
2726	NASDAQ	AMSC	Fri, Mar 21, 2003	40.00	40.00	36.50	37.50
2725	NASDAQ	AMSC	Thu, Mar 20, 2003	37.50	38.70	36.00	37.40
2724	NASDAQ	AMSC	Wed, Mar 19, 2003	38.50	38.80	36.00	37.50
2723	NASDAQ	AMSC	Tue, Mar 18, 2003	38.90	39.50	37.90	39.20
2722	NASDAQ	AMSC	Mon, Mar 17, 2003	35.10	37.70	33.60	37.50
2721	NASDAQ	AMSC	Fri, Mar 14, 2003	34.80	36.00	34.80	35.60
2720	NASDAQ	AMSC	Thu, Mar 13, 2003	35.40	36.70	34.20	35.50
2719	NASDAQ	AMSC	Wed, Mar 12, 2003	35.00	35.00	33.00	34.50
2718	NASDAQ	AMSC	Tue, Mar 11, 2003	33.00	35.90	32.50	35.00
2717	NASDAQ	AMSC	Mon, Mar 10, 2003	35.10	36.90	32.40	32.60
2716	NASDAQ	AMSC	Fri, Mar 7, 2003	37.50	37.60	35.70	36.50
2715	NASDAQ	AMSC	Thu, Mar 6, 2003	39.70	39.70	36.00	37.60
2714	NASDAQ	AMSC	Wed, Mar 5, 2003	39.40	39.40	38.10	38.10
2713	NASDAQ	AMSC	Tue, Mar 4, 2003	39.30	39.80	37.60	39.30
2712	NASDAQ	AMSC	Mon, Mar 3, 2003	41.90	43.70	38.10	38.50
2711	NASDAQ	AMSC	Fri, Feb 28, 2003	32.90	33.70	30.90	32.30
2710	NASDAQ	AMSC	Thu, Feb 27, 2003	35.00	36.40	33.50	33.60
2709	NASDAQ	AMSC	Wed, Feb 26, 2003	35.30	36.50	35.00	36.40
2708	NASDAQ	AMSC	Tue, Feb 25, 2003	33.80	36.50	33.80	36.50
2707	NASDAQ	AMSC	Mon, Feb 24, 2003	35.00	35.50	34.80	35.10
2706	NASDAQ	AMSC	Fri, Feb 21, 2003	36.90	36.90	34.80	35.10
2705	NASDAQ	AMSC	Thu, Feb 20, 2003	36.50	37.00	34.80	35.00
2704	NASDAQ	AMSC	Wed, Feb 19, 2003	35.00	36.40	34.80	35.00
2703	NASDAQ	AMSC	Tue, Feb 18, 2003	35.60	37.40	35.10	35.20
2702	NASDAQ	AMSC	Fri, Feb 14, 2003	35.80	36.80	34.80	34.80
2701	NASDAQ	AMSC	Thu, Feb 13, 2003	32.30	37.00	32.00	36.00
2700	NASDAQ	AMSC	Wed, Feb 12, 2003	36.50	37.50	33.50	35.10
2699	NASDAQ	AMSC	Tue, Feb 11, 2003	38.50	39.40	36.80	36.80
2698	NASDAQ	AMSC	Mon, Feb 10, 2003	39.20	40.00	38.50	39.50
2697	NASDAQ	AMSC	Fri, Feb 7, 2003	38.60	40.00	38.50	38.70
2696	NASDAQ	AMSC	Thu, Feb 6, 2003	38.20	40.00	37.90	38.50
2695	NASDAQ	AMSC	Wed, Feb 5, 2003	37.90	41.00	37.30	39.00
2694	NASDAQ	AMSC	Tue, Feb 4, 2003	46.30	47.50	38.00	38.10
2693	NASDAQ	AMSC	Mon, Feb 3, 2003	51.00	52.00	48.50	48.50
2692	NASDAQ	AMSC	Fri, Jan 31, 2003	46.10	54.10	45.40	49.90
2691	NASDAQ	AMSC	Thu, Jan 30, 2003	41.50	46.30	41.10	45.00
2690	NASDAQ	AMSC	Wed, Jan 29, 2003	37.10	42.20	37.10	42.20
2689	NASDAQ	AMSC	Tue, Jan 28, 2003	36.70	39.80	36.00	39.80
2688	NASDAQ	AMSC	Mon, Jan 27, 2003	36.90	39.00	35.10	36.40
2687	NASDAQ	AMSC	Fri, Jan 24, 2003	40.90	41.00	38.40	38.60
2686	NASDAQ	AMSC	Thu, Jan 23, 2003	40.00	41.50	38.00	41.50
2685	NASDAQ	AMSC	Wed, Jan 22, 2003	37.50	41.20	35.60	39.50
2684	NASDAQ	AMSC	Tue, Jan 21, 2003	34.80	38.30	34.80	37.50
2683	NASDAQ	AMSC	Fri, Jan 17, 2003	36.00	36.40	34.70	35.10
2682	NASDAQ	AMSC	Thu, Jan 16, 2003	38.60	39.00	36.10	37.00
2681	NASDAQ	AMSC	Wed, Jan 15, 2003	37.30	40.00	35.60	39.50
2680	NASDAQ	AMSC	Tue, Jan 14, 2003	34.90	39.50	34.50	39.50
2679	NASDAQ	AMSC	Mon, Jan 13, 2003	34.90	35.50	32.60	35.10
2678	NASDAQ	AMSC	Fri, Jan 10, 2003	35.10	35.10	32.60	32.60
2677	NASDAQ	AMSC	Thu, Jan 9, 2003	34.80	34.80	32.50	33.30
2676	NASDAQ	AMSC	Wed, Jan 8, 2003	33.10	34.80	32.20	33.60
2675	NASDAQ	AMSC	Tue, Jan 7, 2003	35.20	35.70	32.00	33.00
2674	NASDAQ	AMSC	Mon, Jan 6, 2003	30.50	35.20	30.20	35.20
2673	NASDAQ	AMSC	Fri, Jan 3, 2003	31.20	32.30	30.50	30.70
2672	NASDAQ	AMSC	Thu, Jan 2, 2003	32.70	32.90	30.50	31.60
2671	NASDAQ	AMSC	Tue, Dec 31, 2002	30.10	31.80	29.40	30.10
2670	NASDAQ	AMSC	Mon, Dec 30, 2002	32.80	33.60	30.10	30.40
2669	NASDAQ	AMSC	Fri, Dec 27, 2002	33.90	34.40	33.00	33.00
2668	NASDAQ	AMSC	Thu, Dec 26, 2002	36.20	37.00	33.70	34.30
2667	NASDAQ	AMSC	Tue, Dec 24, 2002	34.40	34.40	33.10	33.80
2666	NASDAQ	AMSC	Mon, Dec 23, 2002	36.00	36.60	33.10	34.30
2665	NASDAQ	AMSC	Fri, Dec 20, 2002	38.10	42.40	35.00	36.50
2664	NASDAQ	AMSC	Thu, Dec 19, 2002	40.90	41.00	36.30	36.50
2663	NASDAQ	AMSC	Wed, Dec 18, 2002	40.00	42.00	38.50	40.10
2662	NASDAQ	AMSC	Tue, Dec 17, 2002	38.90	42.00	37.20	41.70
2661	NASDAQ	AMSC	Mon, Dec 16, 2002	35.90	39.00	35.50	38.60
2660	NASDAQ	AMSC	Fri, Dec 13, 2002	37.50	39.40	37.00	37.00
2659	NASDAQ	AMSC	Thu, Dec 12, 2002	39.50	39.50	36.60	37.70
2658	NASDAQ	AMSC	Wed, Dec 11, 2002	38.30	39.20	36.50	39.20
2657	NASDAQ	AMSC	Tue, Dec 10, 2002	36.20	39.20	35.90	38.00
2656	NASDAQ	AMSC	Mon, Dec 9, 2002	36.20	36.50	35.00	35.10
2655	NASDAQ	AMSC	Fri, Dec 6, 2002	37.40	38.80	35.20	35.20
2654	NASDAQ	AMSC	Thu, Dec 5, 2002	39.40	39.90	36.20	37.70
2653	NASDAQ	AMSC	Wed, Dec 4, 2002	35.30	39.50	35.00	38.10
2652	NASDAQ	AMSC	Tue, Dec 3, 2002	39.80	40.00	36.00	36.00
2651	NASDAQ	AMSC	Mon, Dec 2, 2002	37.50	39.90	36.00	39.20
2650	NASDAQ	AMSC	Fri, Nov 29, 2002	36.50	37.00	35.50	36.00
2649	NASDAQ	AMSC	Wed, Nov 27, 2002	36.20	37.50	33.90	35.90
2648	NASDAQ	AMSC	Tue, Nov 26, 2002	36.00	36.50	33.20	34.20
2647	NASDAQ	AMSC	Mon, Nov 25, 2002	35.70	36.50	34.50	35.70
2646	NASDAQ	AMSC	Fri, Nov 22, 2002	35.60	36.00	33.50	35.00
2645	NASDAQ	AMSC	Thu, Nov 21, 2002	36.30	36.50	34.80	35.50
2644	NASDAQ	AMSC	Wed, Nov 20, 2002	36.50	36.50	34.00	35.00
2643	NASDAQ	AMSC	Tue, Nov 19, 2002	37.30	37.30	34.00	35.00
2642	NASDAQ	AMSC	Mon, Nov 18, 2002	36.40	37.40	34.30	35.20
2641	NASDAQ	AMSC	Fri, Nov 15, 2002	35.40	35.90	33.00	34.80
2640	NASDAQ	AMSC	Thu, Nov 14, 2002	34.90	37.40	34.80	36.00
2639	NASDAQ	AMSC	Wed, Nov 13, 2002	34.40	34.90	33.00	34.20
2638	NASDAQ	AMSC	Tue, Nov 12, 2002	31.90	34.70	31.40	33.50
2637	NASDAQ	AMSC	Mon, Nov 11, 2002	36.00	36.00	28.60	30.30
2636	NASDAQ	AMSC	Fri, Nov 8, 2002	34.20	35.30	32.50	33.50
2635	NASDAQ	AMSC	Thu, Nov 7, 2002	33.60	34.50	31.00	33.30
2634	NASDAQ	AMSC	Wed, Nov 6, 2002	38.20	38.20	33.00	33.40
2633	NASDAQ	AMSC	Tue, Nov 5, 2002	37.50	38.50	35.50	37.00
2632	NASDAQ	AMSC	Mon, Nov 4, 2002	38.00	41.30	36.80	37.00
2631	NASDAQ	AMSC	Fri, Nov 1, 2002	38.80	40.00	35.00	36.50
2630	NASDAQ	AMSC	Thu, Oct 31, 2002	36.50	40.30	35.50	38.70
2629	NASDAQ	AMSC	Wed, Oct 30, 2002	33.00	35.00	33.00	33.30
2628	NASDAQ	AMSC	Tue, Oct 29, 2002	31.60	32.90	31.50	32.60
2627	NASDAQ	AMSC	Mon, Oct 28, 2002	32.70	32.70	31.30	31.50
2626	NASDAQ	AMSC	Fri, Oct 25, 2002	29.90	32.30	29.90	32.30
2625	NASDAQ	AMSC	Thu, Oct 24, 2002	27.20	32.30	25.00	29.90
2624	NASDAQ	AMSC	Wed, Oct 23, 2002	25.50	27.20	23.90	27.00
2623	NASDAQ	AMSC	Tue, Oct 22, 2002	26.50	29.30	25.30	25.30
2622	NASDAQ	AMSC	Mon, Oct 21, 2002	27.00	29.00	26.00	27.70
2621	NASDAQ	AMSC	Fri, Oct 18, 2002	28.10	28.30	26.20	27.30
2620	NASDAQ	AMSC	Thu, Oct 17, 2002	25.20	28.90	25.20	27.60
2619	NASDAQ	AMSC	Wed, Oct 16, 2002	27.20	27.90	25.00	25.90
2618	NASDAQ	AMSC	Tue, Oct 15, 2002	26.30	28.20	26.30	27.90
2617	NASDAQ	AMSC	Mon, Oct 14, 2002	27.90	27.90	25.00	26.10
2616	NASDAQ	AMSC	Fri, Oct 11, 2002	26.80	29.00	25.30	27.90
2615	NASDAQ	AMSC	Thu, Oct 10, 2002	26.50	28.50	25.00	27.00
2614	NASDAQ	AMSC	Wed, Oct 9, 2002	27.30	27.80	26.00	26.60
2613	NASDAQ	AMSC	Tue, Oct 8, 2002	26.00	28.50	23.50	27.40
2612	NASDAQ	AMSC	Mon, Oct 7, 2002	24.40	26.00	23.10	24.20
2611	NASDAQ	AMSC	Fri, Oct 4, 2002	22.00	24.30	20.90	24.00
2610	NASDAQ	AMSC	Thu, Oct 3, 2002	25.50	26.20	21.50	22.50
2609	NASDAQ	AMSC	Wed, Oct 2, 2002	26.60	27.10	25.20	26.40
2608	NASDAQ	AMSC	Tue, Oct 1, 2002	28.00	28.00	25.70	26.50
2607	NASDAQ	AMSC	Mon, Sep 30, 2002	30.70	31.50	26.50	27.00
2606	NASDAQ	AMSC	Fri, Sep 27, 2002	30.50	30.50	27.30	28.20
2605	NASDAQ	AMSC	Thu, Sep 26, 2002	30.10	31.00	28.10	29.00
2604	NASDAQ	AMSC	Wed, Sep 25, 2002	29.50	30.70	28.20	30.00
2603	NASDAQ	AMSC	Tue, Sep 24, 2002	31.00	34.00	28.10	29.80
2602	NASDAQ	AMSC	Mon, Sep 23, 2002	33.60	33.60	29.60	29.70
2601	NASDAQ	AMSC	Fri, Sep 20, 2002	37.00	38.00	31.80	31.80
2600	NASDAQ	AMSC	Thu, Sep 19, 2002	35.50	37.60	33.10	33.10
2599	NASDAQ	AMSC	Wed, Sep 18, 2002	29.70	35.40	29.50	35.00
2598	NASDAQ	AMSC	Tue, Sep 17, 2002	33.50	36.00	28.50	29.70
2597	NASDAQ	AMSC	Mon, Sep 16, 2002	31.90	33.60	29.50	33.50
2596	NASDAQ	AMSC	Fri, Sep 13, 2002	30.00	31.90	29.30	31.50
2595	NASDAQ	AMSC	Thu, Sep 12, 2002	30.90	32.40	29.50	29.80
2594	NASDAQ	AMSC	Wed, Sep 11, 2002	31.10	33.40	30.50	31.30
2593	NASDAQ	AMSC	Tue, Sep 10, 2002	31.50	33.50	30.40	32.50
2592	NASDAQ	AMSC	Mon, Sep 9, 2002	34.00	34.00	29.00	31.90
2591	NASDAQ	AMSC	Fri, Sep 6, 2002	33.10	35.00	32.60	34.00
2590	NASDAQ	AMSC	Thu, Sep 5, 2002	35.00	35.90	32.50	33.10
2589	NASDAQ	AMSC	Wed, Sep 4, 2002	35.00	36.00	33.90	35.00
2588	NASDAQ	AMSC	Tue, Sep 3, 2002	39.30	39.30	32.80	33.80
2587	NASDAQ	AMSC	Fri, Aug 30, 2002	39.30	41.50	38.00	38.00
2586	NASDAQ	AMSC	Thu, Aug 29, 2002	38.00	41.70	38.00	41.70
2585	NASDAQ	AMSC	Wed, Aug 28, 2002	39.80	41.90	37.50	37.60
2584	NASDAQ	AMSC	Tue, Aug 27, 2002	42.50	42.50	39.70	39.70
2583	NASDAQ	AMSC	Mon, Aug 26, 2002	41.00	42.50	39.50	42.50
2582	NASDAQ	AMSC	Fri, Aug 23, 2002	44.00	44.70	39.10	39.20
2581	NASDAQ	AMSC	Thu, Aug 22, 2002	43.00	44.00	40.70	43.90
2580	NASDAQ	AMSC	Wed, Aug 21, 2002	42.50	43.30	40.00	42.10
2579	NASDAQ	AMSC	Tue, Aug 20, 2002	41.80	43.90	40.00	42.50
2578	NASDAQ	AMSC	Mon, Aug 19, 2002	44.30	44.30	40.90	40.90
2577	NASDAQ	AMSC	Fri, Aug 16, 2002	41.00	45.40	40.00	43.60
2576	NASDAQ	AMSC	Thu, Aug 15, 2002	46.00	46.00	41.00	41.00
2575	NASDAQ	AMSC	Wed, Aug 14, 2002	40.20	45.00	40.00	45.00
2574	NASDAQ	AMSC	Tue, Aug 13, 2002	43.90	43.90	40.40	40.50
2573	NASDAQ	AMSC	Mon, Aug 12, 2002	42.40	43.90	40.00	43.90
2572	NASDAQ	AMSC	Fri, Aug 9, 2002	41.30	42.50	40.10	40.30
2571	NASDAQ	AMSC	Thu, Aug 8, 2002	44.90	45.00	39.70	45.00
2570	NASDAQ	AMSC	Wed, Aug 7, 2002	42.50	46.90	38.70	43.10
2569	NASDAQ	AMSC	Tue, Aug 6, 2002	38.50	42.40	34.60	40.30
2568	NASDAQ	AMSC	Mon, Aug 5, 2002	37.60	41.20	35.40	36.50
2567	NASDAQ	AMSC	Fri, Aug 2, 2002	40.40	41.00	37.60	37.60
2566	NASDAQ	AMSC	Thu, Aug 1, 2002	41.20	43.40	40.00	40.30
2565	NASDAQ	AMSC	Wed, Jul 31, 2002	47.80	48.20	41.30	41.30
2564	NASDAQ	AMSC	Tue, Jul 30, 2002	47.30	50.00	45.90	48.00
2563	NASDAQ	AMSC	Mon, Jul 29, 2002	54.10	54.40	45.50	48.20
2562	NASDAQ	AMSC	Fri, Jul 26, 2002	54.00	54.00	44.50	53.50
2561	NASDAQ	AMSC	Thu, Jul 25, 2002	48.00	60.50	47.40	53.80
2560	NASDAQ	AMSC	Wed, Jul 24, 2002	41.10	48.90	38.80	47.40
2559	NASDAQ	AMSC	Tue, Jul 23, 2002	41.00	43.10	39.60	41.40
2558	NASDAQ	AMSC	Mon, Jul 22, 2002	41.80	44.50	40.10	43.00
2557	NASDAQ	AMSC	Fri, Jul 19, 2002	40.00	45.00	39.70	40.70
2556	NASDAQ	AMSC	Thu, Jul 18, 2002	44.90	46.90	40.00	40.00
2555	NASDAQ	AMSC	Wed, Jul 17, 2002	41.40	43.10	40.30	43.10
2554	NASDAQ	AMSC	Tue, Jul 16, 2002	44.40	44.50	38.50	40.10
2553	NASDAQ	AMSC	Mon, Jul 15, 2002	43.20	47.70	42.20	42.60
2552	NASDAQ	AMSC	Fri, Jul 12, 2002	47.00	49.30	42.60	43.20
2551	NASDAQ	AMSC	Thu, Jul 11, 2002	46.80	48.50	45.50	45.50
2550	NASDAQ	AMSC	Wed, Jul 10, 2002	46.80	49.00	46.80	46.80
2549	NASDAQ	AMSC	Tue, Jul 9, 2002	49.00	49.30	46.70	47.00
2548	NASDAQ	AMSC	Mon, Jul 8, 2002	45.30	49.60	45.20	46.70
2547	NASDAQ	AMSC	Fri, Jul 5, 2002	42.50	48.10	42.50	45.20
2546	NASDAQ	AMSC	Wed, Jul 3, 2002	40.10	44.10	38.60	43.40
2545	NASDAQ	AMSC	Tue, Jul 2, 2002	41.60	46.40	39.50	40.00
2544	NASDAQ	AMSC	Mon, Jul 1, 2002	54.00	54.50	40.00	40.50
2543	NASDAQ	AMSC	Fri, Jun 28, 2002	49.40	56.80	48.60	54.60
2542	NASDAQ	AMSC	Thu, Jun 27, 2002	41.50	49.80	41.50	49.80
2541	NASDAQ	AMSC	Wed, Jun 26, 2002	39.90	45.80	38.80	44.00
2540	NASDAQ	AMSC	Tue, Jun 25, 2002	41.60	43.50	38.50	41.30
2539	NASDAQ	AMSC	Mon, Jun 24, 2002	42.60	42.60	40.00	41.70
2538	NASDAQ	AMSC	Fri, Jun 21, 2002	44.60	47.50	40.20	41.20
2537	NASDAQ	AMSC	Thu, Jun 20, 2002	46.00	46.50	44.20	44.40
2536	NASDAQ	AMSC	Wed, Jun 19, 2002	50.00	51.50	45.90	46.10
2535	NASDAQ	AMSC	Tue, Jun 18, 2002	53.80	55.50	48.80	50.20
2534	NASDAQ	AMSC	Mon, Jun 17, 2002	54.00	57.00	53.30	53.60
2533	NASDAQ	AMSC	Fri, Jun 14, 2002	55.50	58.30	49.40	55.00
2532	NASDAQ	AMSC	Thu, Jun 13, 2002	57.10	59.40	51.90	57.30
2531	NASDAQ	AMSC	Wed, Jun 12, 2002	61.20	61.90	55.70	57.00
2530	NASDAQ	AMSC	Tue, Jun 11, 2002	67.80	67.90	60.00	61.30
2529	NASDAQ	AMSC	Mon, Jun 10, 2002	66.00	69.70	65.00	65.30
2528	NASDAQ	AMSC	Fri, Jun 7, 2002	68.00	69.70	65.00	68.50
2527	NASDAQ	AMSC	Thu, Jun 6, 2002	72.80	72.90	67.00	67.00
2526	NASDAQ	AMSC	Wed, Jun 5, 2002	65.40	73.40	65.30	73.20
2525	NASDAQ	AMSC	Tue, Jun 4, 2002	67.00	70.00	65.00	68.00
2524	NASDAQ	AMSC	Mon, Jun 3, 2002	72.90	72.90	66.00	69.90
2523	NASDAQ	AMSC	Fri, May 31, 2002	73.20	76.00	71.20	71.60
2522	NASDAQ	AMSC	Thu, May 30, 2002	74.00	75.20	72.00	72.60
2521	NASDAQ	AMSC	Wed, May 29, 2002	76.00	78.00	72.50	72.70
2520	NASDAQ	AMSC	Tue, May 28, 2002	72.60	76.90	72.50	74.80
2519	NASDAQ	AMSC	Fri, May 24, 2002	77.00	77.60	72.40	72.60
2518	NASDAQ	AMSC	Thu, May 23, 2002	71.90	77.50	71.50	77.30
2517	NASDAQ	AMSC	Wed, May 22, 2002	74.00	76.80	70.70	72.00
2516	NASDAQ	AMSC	Tue, May 21, 2002	75.50	78.60	74.00	76.00
2515	NASDAQ	AMSC	Mon, May 20, 2002	76.30	78.40	73.40	73.60
2514	NASDAQ	AMSC	Fri, May 17, 2002	77.00	78.90	75.10	76.40
2513	NASDAQ	AMSC	Thu, May 16, 2002	76.10	79.00	74.80	76.60
2512	NASDAQ	AMSC	Wed, May 15, 2002	74.80	79.90	72.80	76.10
2511	NASDAQ	AMSC	Tue, May 14, 2002	70.50	74.30	68.20	72.10
2510	NASDAQ	AMSC	Mon, May 13, 2002	70.80	71.00	67.50	68.30
2509	NASDAQ	AMSC	Fri, May 10, 2002	70.90	71.00	68.10	69.40
2508	NASDAQ	AMSC	Thu, May 9, 2002	69.90	72.80	69.80	70.00
2507	NASDAQ	AMSC	Wed, May 8, 2002	71.30	72.50	67.50	69.80
2506	NASDAQ	AMSC	Tue, May 7, 2002	72.70	74.10	67.50	67.60
2505	NASDAQ	AMSC	Mon, May 6, 2002	75.00	76.80	71.00	71.00
2504	NASDAQ	AMSC	Fri, May 3, 2002	77.00	77.50	73.50	75.50
2503	NASDAQ	AMSC	Thu, May 2, 2002	72.10	76.70	72.10	75.30
2502	NASDAQ	AMSC	Wed, May 1, 2002	77.50	78.80	74.10	75.00
2501	NASDAQ	AMSC	Tue, Apr 30, 2002	71.00	77.20	71.00	77.20
2500	NASDAQ	AMSC	Mon, Apr 29, 2002	73.90	75.10	68.20	71.90
2499	NASDAQ	AMSC	Fri, Apr 26, 2002	77.10	80.00	73.90	73.90
2498	NASDAQ	AMSC	Thu, Apr 25, 2002	78.30	82.40	75.00	79.00
2497	NASDAQ	AMSC	Wed, Apr 24, 2002	78.00	79.60	78.00	78.00
2496	NASDAQ	AMSC	Tue, Apr 23, 2002	81.00	81.00	78.00	78.10
2495	NASDAQ	AMSC	Mon, Apr 22, 2002	85.00	86.70	78.00	79.20
2494	NASDAQ	AMSC	Fri, Apr 19, 2002	84.20	88.70	81.60	82.30
2493	NASDAQ	AMSC	Thu, Apr 18, 2002	80.00	87.00	80.00	85.40
2492	NASDAQ	AMSC	Wed, Apr 17, 2002	78.50	85.00	78.00	81.40
2491	NASDAQ	AMSC	Tue, Apr 16, 2002	77.50	80.00	77.50	78.10
2490	NASDAQ	AMSC	Mon, Apr 15, 2002	74.10	78.50	74.00	78.50
2489	NASDAQ	AMSC	Fri, Apr 12, 2002	70.20	75.40	69.90	75.00
2488	NASDAQ	AMSC	Thu, Apr 11, 2002	71.50	73.80	69.10	69.20
2487	NASDAQ	AMSC	Wed, Apr 10, 2002	74.40	74.50	69.50	70.80
2486	NASDAQ	AMSC	Tue, Apr 9, 2002	75.00	77.00	74.50	74.50
2485	NASDAQ	AMSC	Mon, Apr 8, 2002	77.00	80.00	74.50	75.60
2484	NASDAQ	AMSC	Fri, Apr 5, 2002	84.90	88.00	76.70	77.60
2483	NASDAQ	AMSC	Thu, Apr 4, 2002	83.50	85.20	77.90	84.30
2482	NASDAQ	AMSC	Wed, Apr 3, 2002	81.00	84.50	78.10	79.90
2481	NASDAQ	AMSC	Tue, Apr 2, 2002	79.90	81.30	77.30	78.40
2480	NASDAQ	AMSC	Mon, Apr 1, 2002	76.00	80.10	74.60	79.20
2479	NASDAQ	AMSC	Thu, Mar 28, 2002	78.30	79.50	75.00	75.50
2478	NASDAQ	AMSC	Wed, Mar 27, 2002	76.30	79.00	76.20	77.50
2477	NASDAQ	AMSC	Tue, Mar 26, 2002	81.00	83.00	74.20	79.50
2476	NASDAQ	AMSC	Mon, Mar 25, 2002	80.70	81.50	79.60	80.60
2475	NASDAQ	AMSC	Fri, Mar 22, 2002	87.50	87.50	80.70	80.90
2474	NASDAQ	AMSC	Thu, Mar 21, 2002	76.70	83.60	76.70	83.10
2473	NASDAQ	AMSC	Wed, Mar 20, 2002	75.90	79.80	75.10	78.60
2472	NASDAQ	AMSC	Tue, Mar 19, 2002	83.00	86.60	74.90	74.90
2471	NASDAQ	AMSC	Mon, Mar 18, 2002	85.00	87.10	82.50	83.80
2470	NASDAQ	AMSC	Fri, Mar 15, 2002	83.50	86.40	81.00	85.00
2469	NASDAQ	AMSC	Thu, Mar 14, 2002	85.10	86.30	83.30	83.40
2468	NASDAQ	AMSC	Wed, Mar 13, 2002	87.50	87.50	82.90	84.60
2467	NASDAQ	AMSC	Tue, Mar 12, 2002	88.20	90.50	85.50	87.50
2466	NASDAQ	AMSC	Mon, Mar 11, 2002	87.30	90.60	84.70	88.10
2465	NASDAQ	AMSC	Fri, Mar 8, 2002	86.20	87.10	83.10	85.50
2464	NASDAQ	AMSC	Thu, Mar 7, 2002	84.00	87.00	82.00	87.00
2463	NASDAQ	AMSC	Wed, Mar 6, 2002	80.30	85.00	79.30	84.40
2462	NASDAQ	AMSC	Tue, Mar 5, 2002	79.50	79.80	76.10	76.30
2461	NASDAQ	AMSC	Mon, Mar 4, 2002	75.00	82.20	74.80	79.90
2460	NASDAQ	AMSC	Fri, Mar 1, 2002	71.50	74.90	71.20	74.80
2459	NASDAQ	AMSC	Thu, Feb 28, 2002	73.00	73.40	70.00	71.00
2458	NASDAQ	AMSC	Wed, Feb 27, 2002	72.00	73.80	70.50	70.50
2457	NASDAQ	AMSC	Tue, Feb 26, 2002	72.00	75.00	68.00	71.10
2456	NASDAQ	AMSC	Mon, Feb 25, 2002	71.30	74.00	69.00	69.10
2455	NASDAQ	AMSC	Fri, Feb 22, 2002	80.50	85.00	68.80	72.60
2454	NASDAQ	AMSC	Thu, Feb 21, 2002	77.30	86.90	76.50	80.00
2453	NASDAQ	AMSC	Wed, Feb 20, 2002	75.00	79.80	73.00	77.80
2452	NASDAQ	AMSC	Tue, Feb 19, 2002	73.00	73.80	70.60	70.80
2451	NASDAQ	AMSC	Fri, Feb 15, 2002	71.60	75.00	69.00	74.20
2450	NASDAQ	AMSC	Thu, Feb 14, 2002	75.00	75.00	71.40	71.50
2449	NASDAQ	AMSC	Wed, Feb 13, 2002	74.30	75.00	71.00	74.50
2448	NASDAQ	AMSC	Tue, Feb 12, 2002	66.90	74.10	65.00	70.20
2447	NASDAQ	AMSC	Mon, Feb 11, 2002	71.00	71.00	65.00	65.60
2446	NASDAQ	AMSC	Fri, Feb 8, 2002	74.00	74.00	70.00	70.70
2445	NASDAQ	AMSC	Thu, Feb 7, 2002	71.40	73.50	70.50	72.00
2444	NASDAQ	AMSC	Wed, Feb 6, 2002	74.00	75.80	71.50	71.50
2443	NASDAQ	AMSC	Tue, Feb 5, 2002	70.60	74.80	68.00	72.50
2442	NASDAQ	AMSC	Mon, Feb 4, 2002	84.00	85.00	70.50	71.50
2441	NASDAQ	AMSC	Fri, Feb 1, 2002	87.00	87.10	82.50	83.10
2440	NASDAQ	AMSC	Thu, Jan 31, 2002	90.00	93.00	84.50	84.50
2439	NASDAQ	AMSC	Wed, Jan 30, 2002	82.10	93.90	81.20	87.20
2438	NASDAQ	AMSC	Tue, Jan 29, 2002	87.00	87.00	81.90	85.00
2437	NASDAQ	AMSC	Mon, Jan 28, 2002	96.00	97.10	93.00	93.00
2436	NASDAQ	AMSC	Fri, Jan 25, 2002	95.20	96.80	92.10	94.00
2435	NASDAQ	AMSC	Thu, Jan 24, 2002	99.00	99.10	92.00	93.50
2434	NASDAQ	AMSC	Wed, Jan 23, 2002	98.00	98.80	90.40	97.70
2433	NASDAQ	AMSC	Tue, Jan 22, 2002	97.50	97.50	90.60	95.10
2432	NASDAQ	AMSC	Fri, Jan 18, 2002	95.90	98.50	92.70	95.60
2431	NASDAQ	AMSC	Thu, Jan 17, 2002	102.40	102.50	90.00	96.50
2430	NASDAQ	AMSC	Wed, Jan 16, 2002	112.50	116.20	109.50	110.20
2429	NASDAQ	AMSC	Tue, Jan 15, 2002	111.20	111.20	105.00	109.30
2428	NASDAQ	AMSC	Mon, Jan 14, 2002	117.00	119.10	109.00	110.20
2427	NASDAQ	AMSC	Fri, Jan 11, 2002	120.90	123.00	118.60	118.90
2426	NASDAQ	AMSC	Thu, Jan 10, 2002	121.90	124.40	116.10	119.70
2425	NASDAQ	AMSC	Wed, Jan 9, 2002	126.50	128.40	120.50	121.70
2424	NASDAQ	AMSC	Tue, Jan 8, 2002	127.60	132.00	122.70	123.10
2423	NASDAQ	AMSC	Mon, Jan 7, 2002	133.50	135.80	127.60	127.60
2422	NASDAQ	AMSC	Fri, Jan 4, 2002	131.50	133.40	128.00	133.00
2421	NASDAQ	AMSC	Thu, Jan 3, 2002	130.50	132.90	127.00	129.30
2420	NASDAQ	AMSC	Wed, Jan 2, 2002	122.00	130.00	119.00	130.00
2419	NASDAQ	AMSC	Mon, Dec 31, 2001	120.50	129.50	119.30	122.60
2418	NASDAQ	AMSC	Fri, Dec 28, 2001	120.50	123.70	120.00	122.90
2417	NASDAQ	AMSC	Thu, Dec 27, 2001	123.40	123.80	119.80	121.00
2416	NASDAQ	AMSC	Wed, Dec 26, 2001	118.00	125.50	118.00	123.40
2415	NASDAQ	AMSC	Mon, Dec 24, 2001	118.90	122.50	117.50	120.00
2414	NASDAQ	AMSC	Fri, Dec 21, 2001	111.40	121.00	108.90	120.70
2413	NASDAQ	AMSC	Thu, Dec 20, 2001	115.50	117.50	108.60	110.50
2412	NASDAQ	AMSC	Wed, Dec 19, 2001	117.80	119.30	114.50	115.50
2411	NASDAQ	AMSC	Tue, Dec 18, 2001	118.00	121.50	112.90	119.70
2410	NASDAQ	AMSC	Mon, Dec 17, 2001	120.00	122.30	116.10	118.40
2409	NASDAQ	AMSC	Fri, Dec 14, 2001	123.50	124.00	115.00	119.90
2408	NASDAQ	AMSC	Thu, Dec 13, 2001	123.50	126.50	120.00	121.20
2407	NASDAQ	AMSC	Wed, Dec 12, 2001	122.60	126.70	121.00	123.00
2406	NASDAQ	AMSC	Tue, Dec 11, 2001	125.10	126.80	121.20	123.00
2405	NASDAQ	AMSC	Mon, Dec 10, 2001	127.10	130.00	125.40	125.60
2404	NASDAQ	AMSC	Fri, Dec 7, 2001	129.80	130.50	126.80	130.00
2403	NASDAQ	AMSC	Thu, Dec 6, 2001	130.00	131.00	127.80	130.00
2402	NASDAQ	AMSC	Wed, Dec 5, 2001	133.00	134.40	125.90	129.50
2401	NASDAQ	AMSC	Tue, Dec 4, 2001	128.20	134.40	127.60	131.80
2400	NASDAQ	AMSC	Mon, Dec 3, 2001	134.70	136.20	126.90	129.30
2399	NASDAQ	AMSC	Fri, Nov 30, 2001	139.00	139.50	134.50	136.20
2398	NASDAQ	AMSC	Thu, Nov 29, 2001	132.50	140.00	131.00	140.00
2397	NASDAQ	AMSC	Wed, Nov 28, 2001	130.00	136.90	128.30	131.50
2396	NASDAQ	AMSC	Tue, Nov 27, 2001	118.70	130.50	118.50	130.30
2395	NASDAQ	AMSC	Mon, Nov 26, 2001	122.00	122.50	118.60	120.70
2394	NASDAQ	AMSC	Fri, Nov 23, 2001	120.00	122.00	117.40	122.00
2393	NASDAQ	AMSC	Wed, Nov 21, 2001	120.60	122.20	117.60	119.50
2392	NASDAQ	AMSC	Tue, Nov 20, 2001	126.00	127.00	117.50	117.50
2391	NASDAQ	AMSC	Mon, Nov 19, 2001	122.50	127.60	120.40	127.50
2390	NASDAQ	AMSC	Fri, Nov 16, 2001	121.60	125.70	121.50	122.50
2389	NASDAQ	AMSC	Thu, Nov 15, 2001	125.10	126.60	119.00	121.10
2388	NASDAQ	AMSC	Wed, Nov 14, 2001	117.20	127.40	117.20	125.10
2387	NASDAQ	AMSC	Tue, Nov 13, 2001	113.00	117.30	113.00	117.10
2386	NASDAQ	AMSC	Mon, Nov 12, 2001	111.30	116.00	108.80	111.70
2385	NASDAQ	AMSC	Fri, Nov 9, 2001	111.00	112.30	108.90	109.00
2384	NASDAQ	AMSC	Thu, Nov 8, 2001	112.40	119.00	110.10	110.30
2383	NASDAQ	AMSC	Wed, Nov 7, 2001	109.60	113.00	106.00	111.20
2382	NASDAQ	AMSC	Tue, Nov 6, 2001	108.30	111.50	107.50	109.20
2381	NASDAQ	AMSC	Mon, Nov 5, 2001	107.50	110.00	102.50	106.00
2380	NASDAQ	AMSC	Fri, Nov 2, 2001	114.70	114.70	107.40	107.40
2379	NASDAQ	AMSC	Thu, Nov 1, 2001	104.80	114.50	100.00	114.10
2378	NASDAQ	AMSC	Wed, Oct 31, 2001	104.80	112.10	97.10	106.60
2377	NASDAQ	AMSC	Tue, Oct 30, 2001	115.60	116.50	101.50	102.90
2376	NASDAQ	AMSC	Mon, Oct 29, 2001	134.50	134.50	115.70	118.00
2375	NASDAQ	AMSC	Fri, Oct 26, 2001	130.20	136.10	129.80	133.30
2374	NASDAQ	AMSC	Thu, Oct 25, 2001	128.50	130.00	126.10	130.00
2373	NASDAQ	AMSC	Wed, Oct 24, 2001	132.00	132.50	126.70	129.40
2372	NASDAQ	AMSC	Tue, Oct 23, 2001	130.10	135.00	128.00	132.00
2371	NASDAQ	AMSC	Mon, Oct 22, 2001	120.50	132.90	120.50	129.90
2370	NASDAQ	AMSC	Fri, Oct 19, 2001	125.50	125.90	118.00	123.50
2369	NASDAQ	AMSC	Thu, Oct 18, 2001	118.10	126.00	113.70	122.10
2368	NASDAQ	AMSC	Wed, Oct 17, 2001	137.40	137.50	118.00	119.40
2367	NASDAQ	AMSC	Tue, Oct 16, 2001	115.30	133.30	115.30	130.50
2366	NASDAQ	AMSC	Mon, Oct 15, 2001	110.50	111.00	105.00	107.90
2365	NASDAQ	AMSC	Fri, Oct 12, 2001	113.90	114.50	102.00	112.50
2364	NASDAQ	AMSC	Thu, Oct 11, 2001	105.30	119.60	105.00	114.10
2363	NASDAQ	AMSC	Wed, Oct 10, 2001	90.60	106.00	90.50	100.70
2362	NASDAQ	AMSC	Tue, Oct 9, 2001	92.40	95.40	87.50	91.70
2361	NASDAQ	AMSC	Mon, Oct 8, 2001	91.00	93.90	89.10	90.40
2360	NASDAQ	AMSC	Fri, Oct 5, 2001	100.00	100.00	89.60	91.60
2359	NASDAQ	AMSC	Thu, Oct 4, 2001	96.50	100.00	92.50	97.90
2358	NASDAQ	AMSC	Wed, Oct 3, 2001	90.80	98.00	89.30	94.00
2357	NASDAQ	AMSC	Tue, Oct 2, 2001	91.20	92.90	86.50	92.00
2356	NASDAQ	AMSC	Mon, Oct 1, 2001	94.10	94.90	89.50	89.50
2355	NASDAQ	AMSC	Fri, Sep 28, 2001	93.50	93.60	88.00	93.40
2354	NASDAQ	AMSC	Thu, Sep 27, 2001	91.60	95.00	86.00	91.00
2353	NASDAQ	AMSC	Wed, Sep 26, 2001	97.20	107.50	95.00	95.50
2352	NASDAQ	AMSC	Tue, Sep 25, 2001	91.50	97.00	90.60	93.00
2351	NASDAQ	AMSC	Mon, Sep 24, 2001	89.50	98.30	86.30	90.60
2350	NASDAQ	AMSC	Fri, Sep 21, 2001	86.90	95.10	83.50	85.90
2349	NASDAQ	AMSC	Thu, Sep 20, 2001	94.10	96.90	87.00	88.50
2348	NASDAQ	AMSC	Wed, Sep 19, 2001	105.50	105.50	91.40	95.20
2347	NASDAQ	AMSC	Tue, Sep 18, 2001	107.00	108.00	102.20	105.00
2346	NASDAQ	AMSC	Mon, Sep 17, 2001	122.10	122.70	103.00	105.00
2345	NASDAQ	AMSC	Mon, Sep 10, 2001	107.00	129.90	104.40	125.80
2344	NASDAQ	AMSC	Fri, Sep 7, 2001	112.50	114.50	107.70	112.90
2343	NASDAQ	AMSC	Thu, Sep 6, 2001	126.90	129.80	110.00	113.00
2342	NASDAQ	AMSC	Wed, Sep 5, 2001	125.00	128.30	122.10	126.60
2341	NASDAQ	AMSC	Tue, Sep 4, 2001	131.00	133.50	124.60	124.60
2340	NASDAQ	AMSC	Fri, Aug 31, 2001	127.50	134.80	126.50	130.00
2339	NASDAQ	AMSC	Thu, Aug 30, 2001	134.90	139.60	123.10	128.70
2338	NASDAQ	AMSC	Wed, Aug 29, 2001	130.30	143.30	130.30	137.20
2337	NASDAQ	AMSC	Tue, Aug 28, 2001	142.00	145.40	131.00	131.00
2336	NASDAQ	AMSC	Mon, Aug 27, 2001	125.50	145.00	124.00	140.20
2335	NASDAQ	AMSC	Fri, Aug 24, 2001	114.10	127.60	110.60	125.50
2334	NASDAQ	AMSC	Thu, Aug 23, 2001	119.10	120.50	110.60	110.60
2333	NASDAQ	AMSC	Wed, Aug 22, 2001	122.90	126.50	117.60	120.50
2332	NASDAQ	AMSC	Tue, Aug 21, 2001	130.50	130.50	117.20	117.20
2331	NASDAQ	AMSC	Mon, Aug 20, 2001	134.00	136.00	127.50	127.50
2330	NASDAQ	AMSC	Fri, Aug 17, 2001	142.50	146.40	131.00	134.10
2329	NASDAQ	AMSC	Thu, Aug 16, 2001	145.90	147.90	138.60	142.60
2328	NASDAQ	AMSC	Wed, Aug 15, 2001	156.40	156.40	143.70	144.90
2327	NASDAQ	AMSC	Tue, Aug 14, 2001	156.00	166.60	152.90	156.60
2326	NASDAQ	AMSC	Mon, Aug 13, 2001	152.50	157.50	149.50	151.40
2325	NASDAQ	AMSC	Fri, Aug 10, 2001	158.80	160.00	147.70	152.50
2324	NASDAQ	AMSC	Thu, Aug 9, 2001	157.60	161.20	150.50	157.10
2323	NASDAQ	AMSC	Wed, Aug 8, 2001	167.30	170.80	155.00	158.70
2322	NASDAQ	AMSC	Tue, Aug 7, 2001	170.00	174.60	166.20	169.50
2321	NASDAQ	AMSC	Mon, Aug 6, 2001	175.90	180.30	166.50	172.90
2320	NASDAQ	AMSC	Fri, Aug 3, 2001	171.30	180.00	169.00	176.60
2319	NASDAQ	AMSC	Thu, Aug 2, 2001	169.00	177.40	166.00	171.00
2318	NASDAQ	AMSC	Wed, Aug 1, 2001	170.00	171.30	164.80	168.20
2317	NASDAQ	AMSC	Tue, Jul 31, 2001	176.00	176.00	158.00	170.10
2316	NASDAQ	AMSC	Mon, Jul 30, 2001	174.80	182.90	165.30	175.20
2315	NASDAQ	AMSC	Fri, Jul 27, 2001	171.80	182.50	167.60	176.90
2314	NASDAQ	AMSC	Thu, Jul 26, 2001	171.80	177.50	169.90	177.30
2313	NASDAQ	AMSC	Wed, Jul 25, 2001	175.00	181.90	167.50	181.40
2312	NASDAQ	AMSC	Tue, Jul 24, 2001	177.50	180.00	170.50	177.00
2311	NASDAQ	AMSC	Mon, Jul 23, 2001	192.30	192.50	175.00	177.80
2310	NASDAQ	AMSC	Fri, Jul 20, 2001	193.00	196.00	187.60	190.00
2309	NASDAQ	AMSC	Thu, Jul 19, 2001	190.60	197.50	190.00	193.40
2308	NASDAQ	AMSC	Wed, Jul 18, 2001	196.70	201.70	188.60	188.60
2307	NASDAQ	AMSC	Tue, Jul 17, 2001	197.00	203.50	193.70	203.50
2306	NASDAQ	AMSC	Mon, Jul 16, 2001	200.50	201.00	188.70	199.90
2305	NASDAQ	AMSC	Fri, Jul 13, 2001	193.60	200.50	193.50	200.40
2304	NASDAQ	AMSC	Thu, Jul 12, 2001	194.00	200.00	187.40	198.00
2303	NASDAQ	AMSC	Wed, Jul 11, 2001	193.90	193.90	187.00	187.50
2302	NASDAQ	AMSC	Tue, Jul 10, 2001	217.10	220.70	195.50	196.20
2301	NASDAQ	AMSC	Mon, Jul 9, 2001	209.70	218.00	206.00	215.10
2300	NASDAQ	AMSC	Fri, Jul 6, 2001	225.00	225.00	207.10	212.00
2299	NASDAQ	AMSC	Thu, Jul 5, 2001	230.40	234.60	225.00	225.00
2298	NASDAQ	AMSC	Tue, Jul 3, 2001	233.00	233.50	227.00	231.20
2297	NASDAQ	AMSC	Mon, Jul 2, 2001	235.50	245.00	232.50	233.60
2296	NASDAQ	AMSC	Fri, Jun 29, 2001	229.40	272.40	228.50	258.00
2295	NASDAQ	AMSC	Thu, Jun 28, 2001	219.50	237.00	219.50	228.50
2294	NASDAQ	AMSC	Wed, Jun 27, 2001	217.90	221.40	215.30	219.10
2293	NASDAQ	AMSC	Tue, Jun 26, 2001	204.10	217.80	203.60	216.90
2292	NASDAQ	AMSC	Mon, Jun 25, 2001	219.00	220.00	203.50	208.00
2291	NASDAQ	AMSC	Fri, Jun 22, 2001	202.70	219.10	202.60	212.60
2290	NASDAQ	AMSC	Thu, Jun 21, 2001	188.60	206.70	188.00	205.90
2289	NASDAQ	AMSC	Wed, Jun 20, 2001	197.00	197.60	178.50	192.20
2288	NASDAQ	AMSC	Tue, Jun 19, 2001	218.40	225.50	197.50	199.90
2287	NASDAQ	AMSC	Mon, Jun 18, 2001	226.00	231.60	205.00	210.80
2286	NASDAQ	AMSC	Fri, Jun 15, 2001	213.90	226.00	210.00	225.50
2285	NASDAQ	AMSC	Thu, Jun 14, 2001	230.30	233.00	215.00	216.20
2284	NASDAQ	AMSC	Wed, Jun 13, 2001	241.70	248.50	229.50	231.00
2283	NASDAQ	AMSC	Tue, Jun 12, 2001	249.90	249.90	237.00	239.60
2282	NASDAQ	AMSC	Mon, Jun 11, 2001	267.00	267.00	247.10	254.40
2281	NASDAQ	AMSC	Fri, Jun 8, 2001	267.00	272.50	260.50	266.50
2280	NASDAQ	AMSC	Thu, Jun 7, 2001	259.00	276.50	258.00	274.90
2279	NASDAQ	AMSC	Wed, Jun 6, 2001	264.80	266.50	255.90	263.90
2278	NASDAQ	AMSC	Tue, Jun 5, 2001	267.00	267.00	262.50	265.80
2277	NASDAQ	AMSC	Mon, Jun 4, 2001	261.00	276.00	259.00	267.30
2276	NASDAQ	AMSC	Fri, Jun 1, 2001	259.00	264.20	248.60	257.30
2275	NASDAQ	AMSC	Thu, May 31, 2001	248.90	264.50	246.20	259.60
2274	NASDAQ	AMSC	Wed, May 30, 2001	251.40	255.00	225.20	243.90
2273	NASDAQ	AMSC	Tue, May 29, 2001	251.50	275.00	248.70	256.60
2272	NASDAQ	AMSC	Fri, May 25, 2001	244.90	270.00	242.90	247.20
2271	NASDAQ	AMSC	Thu, May 24, 2001	243.40	245.00	233.00	244.70
2270	NASDAQ	AMSC	Wed, May 23, 2001	251.00	251.50	239.60	240.10
2269	NASDAQ	AMSC	Tue, May 22, 2001	258.00	265.00	245.00	250.00
2268	NASDAQ	AMSC	Mon, May 21, 2001	257.20	279.00	249.00	251.50
2267	NASDAQ	AMSC	Fri, May 18, 2001	212.20	259.00	212.10	252.40
2266	NASDAQ	AMSC	Thu, May 17, 2001	190.00	220.00	189.50	213.00
2265	NASDAQ	AMSC	Wed, May 16, 2001	189.90	193.20	188.30	189.50
2264	NASDAQ	AMSC	Tue, May 15, 2001	190.50	198.00	181.00	191.40
2263	NASDAQ	AMSC	Mon, May 14, 2001	190.00	203.80	187.60	196.10
2262	NASDAQ	AMSC	Fri, May 11, 2001	185.20	192.20	182.00	192.00
2261	NASDAQ	AMSC	Thu, May 10, 2001	191.90	197.30	183.00	185.50
2260	NASDAQ	AMSC	Wed, May 9, 2001	185.30	197.00	184.50	190.90
2259	NASDAQ	AMSC	Tue, May 8, 2001	194.90	194.90	183.70	189.00
2258	NASDAQ	AMSC	Mon, May 7, 2001	150.50	192.50	150.50	190.10
2257	NASDAQ	AMSC	Fri, May 4, 2001	153.30	153.40	148.30	150.00
2256	NASDAQ	AMSC	Thu, May 3, 2001	159.40	159.40	152.50	154.00
2255	NASDAQ	AMSC	Wed, May 2, 2001	157.20	162.00	153.70	159.30
2254	NASDAQ	AMSC	Tue, May 1, 2001	156.50	161.50	155.50	157.30
2253	NASDAQ	AMSC	Mon, Apr 30, 2001	152.90	163.50	150.00	156.00
2252	NASDAQ	AMSC	Fri, Apr 27, 2001	137.30	152.00	134.80	151.90
2251	NASDAQ	AMSC	Thu, Apr 26, 2001	129.10	138.40	127.50	136.30
2250	NASDAQ	AMSC	Wed, Apr 25, 2001	131.60	131.60	121.20	129.00
2249	NASDAQ	AMSC	Tue, Apr 24, 2001	138.50	138.90	128.00	128.30
2248	NASDAQ	AMSC	Mon, Apr 23, 2001	140.50	140.70	138.00	138.00
2247	NASDAQ	AMSC	Fri, Apr 20, 2001	147.50	148.50	140.10	147.00
2246	NASDAQ	AMSC	Thu, Apr 19, 2001	148.00	149.50	143.70	146.20
2245	NASDAQ	AMSC	Wed, Apr 18, 2001	140.20	148.50	138.50	147.20
2244	NASDAQ	AMSC	Tue, Apr 17, 2001	130.00	135.20	130.00	133.10
2243	NASDAQ	AMSC	Mon, Apr 16, 2001	135.70	138.50	134.00	135.30
2242	NASDAQ	AMSC	Thu, Apr 12, 2001	128.80	145.00	126.00	140.30
2241	NASDAQ	AMSC	Wed, Apr 11, 2001	130.00	131.40	124.00	128.30
2240	NASDAQ	AMSC	Tue, Apr 10, 2001	118.00	132.40	118.00	124.00
2239	NASDAQ	AMSC	Mon, Apr 9, 2001	112.70	118.40	110.40	118.00
2238	NASDAQ	AMSC	Fri, Apr 6, 2001	121.88	121.88	111.25	112.50
2237	NASDAQ	AMSC	Thu, Apr 5, 2001	120.00	125.63	110.63	119.38
2236	NASDAQ	AMSC	Wed, Apr 4, 2001	111.88	117.50	110.00	113.13
2235	NASDAQ	AMSC	Tue, Apr 3, 2001	118.13	118.75	107.50	110.63
2234	NASDAQ	AMSC	Mon, Apr 2, 2001	137.50	138.75	110.00	122.50
2233	NASDAQ	AMSC	Fri, Mar 30, 2001	151.25	161.25	150.63	160.63
2232	NASDAQ	AMSC	Thu, Mar 29, 2001	150.47	158.75	147.50	151.88
2231	NASDAQ	AMSC	Wed, Mar 28, 2001	156.25	156.25	150.63	151.25
2230	NASDAQ	AMSC	Tue, Mar 27, 2001	158.75	160.00	155.63	155.63
2229	NASDAQ	AMSC	Mon, Mar 26, 2001	159.38	160.63	149.38	155.63
2228	NASDAQ	AMSC	Fri, Mar 23, 2001	147.50	161.25	146.88	155.00
2227	NASDAQ	AMSC	Thu, Mar 22, 2001	140.00	148.13	132.50	145.00
2226	NASDAQ	AMSC	Wed, Mar 21, 2001	143.75	148.13	135.63	139.22
2225	NASDAQ	AMSC	Tue, Mar 20, 2001	155.00	161.88	147.50	151.72
2224	NASDAQ	AMSC	Mon, Mar 19, 2001	145.00	153.75	143.75	153.13
2223	NASDAQ	AMSC	Fri, Mar 16, 2001	153.13	154.38	140.00	142.50
2222	NASDAQ	AMSC	Thu, Mar 15, 2001	158.13	162.50	153.13	153.75
2221	NASDAQ	AMSC	Wed, Mar 14, 2001	156.25	163.75	152.50	153.13
2220	NASDAQ	AMSC	Tue, Mar 13, 2001	153.75	164.38	152.50	161.88
2219	NASDAQ	AMSC	Mon, Mar 12, 2001	160.63	161.88	152.50	153.75
2218	NASDAQ	AMSC	Fri, Mar 9, 2001	165.63	166.25	153.75	163.13
2217	NASDAQ	AMSC	Thu, Mar 8, 2001	167.50	173.13	164.38	166.25
2216	NASDAQ	AMSC	Wed, Mar 7, 2001	178.75	178.75	167.50	168.13
2215	NASDAQ	AMSC	Tue, Mar 6, 2001	183.13	184.38	170.00	176.25
2214	NASDAQ	AMSC	Mon, Mar 5, 2001	175.63	183.13	168.75	181.25
2213	NASDAQ	AMSC	Fri, Mar 2, 2001	166.25	179.38	163.75	176.88
2212	NASDAQ	AMSC	Thu, Mar 1, 2001	166.25	171.25	160.00	170.63
2211	NASDAQ	AMSC	Wed, Feb 28, 2001	180.63	181.88	165.63	169.38
2210	NASDAQ	AMSC	Tue, Feb 27, 2001	191.88	194.38	180.00	180.63
2209	NASDAQ	AMSC	Mon, Feb 26, 2001	188.75	195.47	184.38	192.50
2208	NASDAQ	AMSC	Fri, Feb 23, 2001	180.63	190.63	175.63	187.50
2207	NASDAQ	AMSC	Thu, Feb 22, 2001	186.25	190.00	172.50	183.75
2206	NASDAQ	AMSC	Wed, Feb 21, 2001	186.25	186.88	180.00	184.38
2205	NASDAQ	AMSC	Tue, Feb 20, 2001	191.25	193.75	185.00	187.50
2204	NASDAQ	AMSC	Fri, Feb 16, 2001	199.69	201.25	182.50	189.38
2203	NASDAQ	AMSC	Thu, Feb 15, 2001	203.13	205.00	196.25	202.50
2202	NASDAQ	AMSC	Wed, Feb 14, 2001	181.25	198.75	177.50	198.13
2201	NASDAQ	AMSC	Tue, Feb 13, 2001	190.63	196.25	179.38	180.63
2200	NASDAQ	AMSC	Mon, Feb 12, 2001	168.75	192.50	165.00	191.25
2199	NASDAQ	AMSC	Fri, Feb 9, 2001	176.25	176.88	165.00	166.25
2198	NASDAQ	AMSC	Thu, Feb 8, 2001	171.88	179.38	168.75	175.00
2197	NASDAQ	AMSC	Wed, Feb 7, 2001	166.88	174.38	160.63	167.50
2196	NASDAQ	AMSC	Tue, Feb 6, 2001	171.25	173.13	161.56	164.38
2195	NASDAQ	AMSC	Mon, Feb 5, 2001	184.38	184.38	170.63	170.63
2194	NASDAQ	AMSC	Fri, Feb 2, 2001	201.25	205.00	182.50	183.75
2193	NASDAQ	AMSC	Thu, Feb 1, 2001	210.00	210.00	192.50	200.00
2192	NASDAQ	AMSC	Wed, Jan 31, 2001	215.00	221.25	203.13	206.88
2191	NASDAQ	AMSC	Tue, Jan 30, 2001	218.75	218.75	206.25	213.13
2190	NASDAQ	AMSC	Mon, Jan 29, 2001	204.38	214.38	198.75	213.13
2189	NASDAQ	AMSC	Fri, Jan 26, 2001	196.25	204.38	191.88	198.13
2188	NASDAQ	AMSC	Thu, Jan 25, 2001	198.75	200.00	190.63	195.63
2187	NASDAQ	AMSC	Wed, Jan 24, 2001	226.25	226.25	197.50	201.88
2186	NASDAQ	AMSC	Tue, Jan 23, 2001	309.38	316.25	225.00	231.88
2185	NASDAQ	AMSC	Mon, Jan 22, 2001	316.25	338.75	301.88	328.13
2184	NASDAQ	AMSC	Fri, Jan 19, 2001	341.88	348.75	310.00	316.88
2183	NASDAQ	AMSC	Thu, Jan 18, 2001	340.63	348.75	335.00	347.50
2182	NASDAQ	AMSC	Wed, Jan 17, 2001	298.75	346.25	293.75	343.75
2181	NASDAQ	AMSC	Tue, Jan 16, 2001	282.50	297.50	270.00	293.13
2180	NASDAQ	AMSC	Fri, Jan 12, 2001	280.78	286.25	257.50	276.25
2179	NASDAQ	AMSC	Thu, Jan 11, 2001	268.13	280.00	257.50	280.00
2178	NASDAQ	AMSC	Wed, Jan 10, 2001	240.00	270.63	233.75	267.50
2177	NASDAQ	AMSC	Tue, Jan 9, 2001	212.50	255.00	211.25	238.75
2176	NASDAQ	AMSC	Mon, Jan 8, 2001	228.13	228.75	205.63	211.88
2175	NASDAQ	AMSC	Fri, Jan 5, 2001	240.00	242.50	216.88	220.00
2174	NASDAQ	AMSC	Thu, Jan 4, 2001	259.69	267.50	228.75	233.75
2173	NASDAQ	AMSC	Wed, Jan 3, 2001	231.56	255.00	218.13	247.50
2172	NASDAQ	AMSC	Tue, Jan 2, 2001	293.75	293.75	233.75	236.88
2171	NASDAQ	AMSC	Fri, Dec 29, 2000	275.63	296.25	275.00	285.63
2170	NASDAQ	AMSC	Thu, Dec 28, 2000	261.56	285.00	261.25	282.50
2169	NASDAQ	AMSC	Wed, Dec 27, 2000	240.00	275.00	228.13	275.00
2168	NASDAQ	AMSC	Tue, Dec 26, 2000	258.75	259.38	230.00	230.00
2167	NASDAQ	AMSC	Fri, Dec 22, 2000	239.38	258.75	226.25	247.50
2166	NASDAQ	AMSC	Thu, Dec 21, 2000	258.75	258.75	225.00	235.00
2165	NASDAQ	AMSC	Wed, Dec 20, 2000	262.50	288.13	250.00	260.00
2164	NASDAQ	AMSC	Tue, Dec 19, 2000	289.38	325.63	280.00	290.00
2163	NASDAQ	AMSC	Mon, Dec 18, 2000	309.38	320.00	282.50	288.75
2162	NASDAQ	AMSC	Fri, Dec 15, 2000	299.06	301.25	283.75	300.00
2161	NASDAQ	AMSC	Thu, Dec 14, 2000	322.81	329.38	300.00	304.38
2160	NASDAQ	AMSC	Wed, Dec 13, 2000	335.63	350.00	317.50	330.00
2159	NASDAQ	AMSC	Tue, Dec 12, 2000	351.25	351.25	330.00	339.38
2158	NASDAQ	AMSC	Mon, Dec 11, 2000	330.63	360.00	320.00	355.00
2157	NASDAQ	AMSC	Fri, Dec 8, 2000	338.75	360.00	315.00	328.75
2156	NASDAQ	AMSC	Thu, Dec 7, 2000	323.13	323.13	295.00	317.50
2155	NASDAQ	AMSC	Wed, Dec 6, 2000	340.00	353.75	317.50	327.50
2154	NASDAQ	AMSC	Tue, Dec 5, 2000	280.00	337.50	275.63	335.00
2153	NASDAQ	AMSC	Mon, Dec 4, 2000	273.13	290.00	257.50	262.50
2152	NASDAQ	AMSC	Fri, Dec 1, 2000	250.00	301.25	245.63	270.00
2151	NASDAQ	AMSC	Thu, Nov 30, 2000	255.63	257.50	225.00	237.50
2150	NASDAQ	AMSC	Wed, Nov 29, 2000	264.38	267.50	233.13	247.50
2149	NASDAQ	AMSC	Tue, Nov 28, 2000	280.63	288.75	255.00	263.13
2148	NASDAQ	AMSC	Mon, Nov 27, 2000	337.50	342.50	283.75	288.13
2147	NASDAQ	AMSC	Fri, Nov 24, 2000	262.50	326.25	260.00	326.25
2146	NASDAQ	AMSC	Wed, Nov 22, 2000	255.31	278.13	245.00	250.00
2145	NASDAQ	AMSC	Tue, Nov 21, 2000	294.06	294.38	248.75	256.25
2144	NASDAQ	AMSC	Mon, Nov 20, 2000	300.00	310.00	267.50	275.00
2143	NASDAQ	AMSC	Fri, Nov 17, 2000	344.38	346.25	316.25	331.25
2142	NASDAQ	AMSC	Thu, Nov 16, 2000	369.38	371.25	335.63	344.84
2141	NASDAQ	AMSC	Wed, Nov 15, 2000	380.63	382.50	365.00	372.50
2140	NASDAQ	AMSC	Tue, Nov 14, 2000	380.00	397.50	370.00	380.00
2139	NASDAQ	AMSC	Mon, Nov 13, 2000	352.50	371.25	341.25	360.00
2138	NASDAQ	AMSC	Fri, Nov 10, 2000	434.69	435.00	389.38	389.38
2137	NASDAQ	AMSC	Thu, Nov 9, 2000	426.25	451.25	415.00	434.38
2136	NASDAQ	AMSC	Wed, Nov 8, 2000	469.38	470.00	437.50	439.38
2135	NASDAQ	AMSC	Tue, Nov 7, 2000	477.50	480.00	437.50	457.50
2134	NASDAQ	AMSC	Mon, Nov 6, 2000	479.38	487.50	474.38	482.50
2133	NASDAQ	AMSC	Fri, Nov 3, 2000	485.00	485.00	460.00	473.13
2132	NASDAQ	AMSC	Thu, Nov 2, 2000	487.50	495.63	479.38	483.13
2131	NASDAQ	AMSC	Wed, Nov 1, 2000	468.13	490.00	440.00	478.13
2130	NASDAQ	AMSC	Tue, Oct 31, 2000	472.50	495.63	468.91	477.50
2129	NASDAQ	AMSC	Mon, Oct 30, 2000	460.94	485.31	442.50	460.63
2128	NASDAQ	AMSC	Fri, Oct 27, 2000	516.88	518.75	457.50	461.25
2127	NASDAQ	AMSC	Thu, Oct 26, 2000	466.25	515.00	460.00	503.75
2126	NASDAQ	AMSC	Wed, Oct 25, 2000	481.25	514.38	459.38	470.00
2125	NASDAQ	AMSC	Tue, Oct 24, 2000	541.25	548.75	492.50	495.00
2124	NASDAQ	AMSC	Mon, Oct 23, 2000	542.50	559.38	523.75	528.13
2123	NASDAQ	AMSC	Fri, Oct 20, 2000	525.63	546.25	506.25	525.00
2122	NASDAQ	AMSC	Thu, Oct 19, 2000	477.50	533.75	475.00	520.00
2121	NASDAQ	AMSC	Wed, Oct 18, 2000	467.50	494.38	445.00	468.75
2120	NASDAQ	AMSC	Tue, Oct 17, 2000	498.44	503.75	473.13	480.00
2119	NASDAQ	AMSC	Mon, Oct 16, 2000	454.38	508.75	447.50	500.63
2118	NASDAQ	AMSC	Fri, Oct 13, 2000	439.69	455.00	415.00	451.88
2117	NASDAQ	AMSC	Thu, Oct 12, 2000	400.31	421.25	388.75	411.25
2116	NASDAQ	AMSC	Wed, Oct 11, 2000	355.63	413.75	352.50	390.00
2115	NASDAQ	AMSC	Tue, Oct 10, 2000	414.38	414.38	363.75	379.38
2114	NASDAQ	AMSC	Mon, Oct 9, 2000	410.00	413.75	373.75	411.88
2113	NASDAQ	AMSC	Fri, Oct 6, 2000	428.75	451.25	402.50	416.25
2112	NASDAQ	AMSC	Thu, Oct 5, 2000	458.75	466.25	430.00	433.13
2111	NASDAQ	AMSC	Wed, Oct 4, 2000	475.00	477.50	455.63	461.88
2110	NASDAQ	AMSC	Tue, Oct 3, 2000	502.50	508.75	478.75	481.25
2109	NASDAQ	AMSC	Mon, Oct 2, 2000	494.06	527.50	493.13	498.13
2108	NASDAQ	AMSC	Fri, Sep 29, 2000	528.75	528.75	491.25	491.56
2107	NASDAQ	AMSC	Thu, Sep 28, 2000	486.25	530.00	480.00	521.25
2106	NASDAQ	AMSC	Wed, Sep 27, 2000	521.25	527.50	478.75	490.63
2105	NASDAQ	AMSC	Tue, Sep 26, 2000	528.13	530.00	506.88	521.25
2104	NASDAQ	AMSC	Mon, Sep 25, 2000	540.00	563.75	528.13	530.00
2103	NASDAQ	AMSC	Fri, Sep 22, 2000	520.00	535.00	512.50	528.75
2102	NASDAQ	AMSC	Thu, Sep 21, 2000	577.50	582.50	556.25	562.50
2101	NASDAQ	AMSC	Wed, Sep 20, 2000	582.50	584.38	551.25	573.75
2100	NASDAQ	AMSC	Tue, Sep 19, 2000	576.25	600.00	556.88	570.00
2099	NASDAQ	AMSC	Mon, Sep 18, 2000	540.63	571.25	530.63	566.88
2098	NASDAQ	AMSC	Fri, Sep 15, 2000	601.56	601.88	547.50	558.13
2097	NASDAQ	AMSC	Thu, Sep 14, 2000	591.25	615.00	583.75	607.50
2096	NASDAQ	AMSC	Wed, Sep 13, 2000	530.31	583.75	528.75	582.50
2095	NASDAQ	AMSC	Tue, Sep 12, 2000	489.38	540.00	480.00	537.50
2094	NASDAQ	AMSC	Mon, Sep 11, 2000	473.13	499.38	469.38	481.25
2093	NASDAQ	AMSC	Fri, Sep 8, 2000	487.50	491.25	462.50	481.25
2092	NASDAQ	AMSC	Thu, Sep 7, 2000	435.00	495.00	427.50	487.50
2091	NASDAQ	AMSC	Wed, Sep 6, 2000	449.69	453.75	425.00	426.88
2090	NASDAQ	AMSC	Tue, Sep 5, 2000	470.63	470.63	435.00	457.50
2089	NASDAQ	AMSC	Fri, Sep 1, 2000	435.00	462.50	417.50	462.50
2088	NASDAQ	AMSC	Thu, Aug 31, 2000	417.50	442.50	416.25	424.38
2087	NASDAQ	AMSC	Wed, Aug 30, 2000	445.00	445.63	417.50	420.63
2086	NASDAQ	AMSC	Tue, Aug 29, 2000	446.25	452.50	425.63	442.50
2085	NASDAQ	AMSC	Mon, Aug 28, 2000	445.00	467.50	438.75	450.63
2084	NASDAQ	AMSC	Fri, Aug 25, 2000	440.00	441.25	430.00	438.75
2083	NASDAQ	AMSC	Thu, Aug 24, 2000	449.38	457.50	433.75	436.25
2082	NASDAQ	AMSC	Wed, Aug 23, 2000	456.88	459.38	429.38	454.38
2081	NASDAQ	AMSC	Tue, Aug 22, 2000	447.50	463.75	447.50	458.75
2080	NASDAQ	AMSC	Mon, Aug 21, 2000	428.75	451.88	426.25	450.63
2079	NASDAQ	AMSC	Fri, Aug 18, 2000	435.00	451.88	405.63	423.75
2078	NASDAQ	AMSC	Thu, Aug 17, 2000	420.31	432.50	417.50	425.63
2077	NASDAQ	AMSC	Wed, Aug 16, 2000	407.50	432.50	403.75	421.25
2076	NASDAQ	AMSC	Tue, Aug 15, 2000	391.88	415.00	389.38	407.50
2075	NASDAQ	AMSC	Mon, Aug 14, 2000	413.75	417.50	387.50	387.50
2074	NASDAQ	AMSC	Fri, Aug 11, 2000	400.00	412.50	370.00	410.63
2073	NASDAQ	AMSC	Thu, Aug 10, 2000	394.38	403.75	388.13	399.22
2072	NASDAQ	AMSC	Wed, Aug 9, 2000	384.69	401.25	380.63	394.38
2071	NASDAQ	AMSC	Tue, Aug 8, 2000	363.13	397.50	347.50	376.88
2070	NASDAQ	AMSC	Mon, Aug 7, 2000	380.00	381.25	355.00	355.00
2069	NASDAQ	AMSC	Fri, Aug 4, 2000	361.25	378.75	359.38	371.25
2068	NASDAQ	AMSC	Thu, Aug 3, 2000	323.13	356.25	303.75	355.63
2067	NASDAQ	AMSC	Wed, Aug 2, 2000	353.13	358.75	330.00	332.50
2066	NASDAQ	AMSC	Tue, Aug 1, 2000	376.25	376.25	342.50	345.00
2065	NASDAQ	AMSC	Mon, Jul 31, 2000	340.00	382.50	337.50	370.00
2064	NASDAQ	AMSC	Fri, Jul 28, 2000	412.50	417.50	317.50	325.63
2063	NASDAQ	AMSC	Thu, Jul 27, 2000	430.94	436.88	410.00	426.25
2062	NASDAQ	AMSC	Wed, Jul 26, 2000	455.00	460.00	425.00	441.25
2061	NASDAQ	AMSC	Tue, Jul 25, 2000	536.88	539.38	456.88	465.00
2060	NASDAQ	AMSC	Mon, Jul 24, 2000	510.00	545.00	506.25	528.75
2059	NASDAQ	AMSC	Fri, Jul 21, 2000	531.25	547.50	497.50	511.25
2058	NASDAQ	AMSC	Thu, Jul 20, 2000	535.63	578.75	520.63	522.50
2057	NASDAQ	AMSC	Wed, Jul 19, 2000	544.38	545.00	532.50	537.50
2056	NASDAQ	AMSC	Tue, Jul 18, 2000	581.25	590.00	543.13	544.84
2055	NASDAQ	AMSC	Mon, Jul 17, 2000	584.38	618.75	580.00	596.88
2054	NASDAQ	AMSC	Fri, Jul 14, 2000	568.13	590.00	562.50	582.50
2053	NASDAQ	AMSC	Thu, Jul 13, 2000	543.13	571.25	521.25	571.25
2052	NASDAQ	AMSC	Wed, Jul 12, 2000	549.38	568.75	532.50	538.75
2051	NASDAQ	AMSC	Tue, Jul 11, 2000	500.00	541.25	499.38	541.25
2050	NASDAQ	AMSC	Mon, Jul 10, 2000	483.75	520.00	483.75	505.00
2049	NASDAQ	AMSC	Fri, Jul 7, 2000	482.50	521.25	476.25	486.25
2048	NASDAQ	AMSC	Thu, Jul 6, 2000	486.25	490.00	455.63	480.63
2047	NASDAQ	AMSC	Wed, Jul 5, 2000	466.25	495.00	455.00	495.00
2046	NASDAQ	AMSC	Mon, Jul 3, 2000	472.50	475.00	457.50	466.25
2045	NASDAQ	AMSC	Fri, Jun 30, 2000	472.50	486.25	471.88	482.50
2044	NASDAQ	AMSC	Thu, Jun 29, 2000	473.75	485.63	462.50	468.75
2043	NASDAQ	AMSC	Wed, Jun 28, 2000	438.75	510.00	437.50	501.25
2042	NASDAQ	AMSC	Tue, Jun 27, 2000	456.25	479.38	440.63	445.63
2041	NASDAQ	AMSC	Mon, Jun 26, 2000	401.25	470.00	392.50	450.00
2040	NASDAQ	AMSC	Fri, Jun 23, 2000	405.31	410.00	385.00	402.50
2039	NASDAQ	AMSC	Thu, Jun 22, 2000	420.00	420.00	396.88	405.63
2038	NASDAQ	AMSC	Wed, Jun 21, 2000	418.75	422.50	395.00	411.88
2037	NASDAQ	AMSC	Tue, Jun 20, 2000	401.88	428.13	401.88	415.00
2036	NASDAQ	AMSC	Mon, Jun 19, 2000	389.38	409.38	370.00	398.75
2035	NASDAQ	AMSC	Fri, Jun 16, 2000	406.88	406.88	378.75	392.50
2034	NASDAQ	AMSC	Thu, Jun 15, 2000	440.00	440.00	395.00	409.38
2033	NASDAQ	AMSC	Wed, Jun 14, 2000	443.75	456.25	425.00	440.00
2032	NASDAQ	AMSC	Tue, Jun 13, 2000	431.25	445.00	380.00	426.88
2031	NASDAQ	AMSC	Mon, Jun 12, 2000	465.00	476.88	402.50	437.50
2030	NASDAQ	AMSC	Fri, Jun 9, 2000	440.63	472.50	427.50	460.00
2029	NASDAQ	AMSC	Thu, Jun 8, 2000	376.25	452.50	373.75	427.50
2028	NASDAQ	AMSC	Wed, Jun 7, 2000	358.75	375.00	358.75	366.88
2027	NASDAQ	AMSC	Tue, Jun 6, 2000	318.75	370.00	318.75	355.63
2026	NASDAQ	AMSC	Mon, Jun 5, 2000	301.88	329.38	292.50	319.38
2025	NASDAQ	AMSC	Fri, Jun 2, 2000	306.56	320.00	295.00	298.13
2024	NASDAQ	AMSC	Thu, Jun 1, 2000	283.13	305.00	276.25	287.50
2023	NASDAQ	AMSC	Wed, May 31, 2000	280.00	290.00	263.13	265.00
2022	NASDAQ	AMSC	Tue, May 30, 2000	266.25	285.00	265.00	279.38
2021	NASDAQ	AMSC	Fri, May 26, 2000	265.00	265.00	242.50	251.25
2020	NASDAQ	AMSC	Thu, May 25, 2000	271.88	282.50	253.75	255.00
2019	NASDAQ	AMSC	Wed, May 24, 2000	276.25	278.75	233.75	261.25
2018	NASDAQ	AMSC	Tue, May 23, 2000	282.50	296.25	261.25	285.00
2017	NASDAQ	AMSC	Mon, May 22, 2000	288.75	288.75	270.00	283.75
2016	NASDAQ	AMSC	Fri, May 19, 2000	287.50	305.00	285.00	290.63
2015	NASDAQ	AMSC	Thu, May 18, 2000	318.75	318.75	296.25	298.13
2014	NASDAQ	AMSC	Wed, May 17, 2000	327.50	327.50	291.25	314.38
2013	NASDAQ	AMSC	Tue, May 16, 2000	350.00	356.25	323.75	323.75
2012	NASDAQ	AMSC	Mon, May 15, 2000	320.00	340.00	283.13	336.25
2011	NASDAQ	AMSC	Fri, May 12, 2000	307.50	321.25	291.25	296.25
2010	NASDAQ	AMSC	Thu, May 11, 2000	264.38	301.25	257.50	296.25
2009	NASDAQ	AMSC	Wed, May 10, 2000	299.38	300.00	250.63	256.25
2008	NASDAQ	AMSC	Tue, May 9, 2000	336.56	336.88	297.50	297.50
2007	NASDAQ	AMSC	Mon, May 8, 2000	317.50	333.13	299.38	307.50
2006	NASDAQ	AMSC	Fri, May 5, 2000	316.25	350.00	316.25	334.38
2005	NASDAQ	AMSC	Thu, May 4, 2000	327.50	349.38	318.75	322.50
2004	NASDAQ	AMSC	Wed, May 3, 2000	374.69	375.00	315.00	325.00
2003	NASDAQ	AMSC	Tue, May 2, 2000	395.63	400.00	375.00	375.63
2002	NASDAQ	AMSC	Mon, May 1, 2000	395.00	398.75	387.50	393.75
2001	NASDAQ	AMSC	Fri, Apr 28, 2000	385.00	395.00	358.75	381.88
2000	NASDAQ	AMSC	Thu, Apr 27, 2000	328.75	381.88	315.00	373.75
1999	NASDAQ	AMSC	Wed, Apr 26, 2000	355.00	377.50	338.75	343.13
1998	NASDAQ	AMSC	Tue, Apr 25, 2000	304.84	346.25	297.50	341.25
1997	NASDAQ	AMSC	Mon, Apr 24, 2000	269.38	307.50	250.00	287.50
1996	NASDAQ	AMSC	Thu, Apr 20, 2000	261.25	275.00	250.00	266.25
1995	NASDAQ	AMSC	Wed, Apr 19, 2000	270.00	275.00	255.00	259.22
1994	NASDAQ	AMSC	Tue, Apr 18, 2000	220.00	297.50	220.00	262.50
1993	NASDAQ	AMSC	Mon, Apr 17, 2000	207.50	220.00	196.25	217.50
1992	NASDAQ	AMSC	Fri, Apr 14, 2000	284.38	291.25	220.00	220.00
1991	NASDAQ	AMSC	Thu, Apr 13, 2000	270.63	305.00	262.50	290.00
1990	NASDAQ	AMSC	Wed, Apr 12, 2000	279.38	280.00	249.38	266.25
1989	NASDAQ	AMSC	Tue, Apr 11, 2000	325.00	325.00	255.00	256.25
1988	NASDAQ	AMSC	Mon, Apr 10, 2000	357.50	360.00	310.00	316.88
1987	NASDAQ	AMSC	Fri, Apr 7, 2000	355.00	360.00	333.13	347.50
1986	NASDAQ	AMSC	Thu, Apr 6, 2000	326.25	370.00	321.25	335.63
1985	NASDAQ	AMSC	Wed, Apr 5, 2000	315.63	345.00	305.00	321.25
1984	NASDAQ	AMSC	Tue, Apr 4, 2000	370.00	391.25	291.25	325.00
1983	NASDAQ	AMSC	Mon, Apr 3, 2000	442.50	445.00	360.00	365.00
1982	NASDAQ	AMSC	Fri, Mar 31, 2000	446.25	452.50	410.00	445.00
1981	NASDAQ	AMSC	Thu, Mar 30, 2000	423.75	491.25	412.50	432.50
1980	NASDAQ	AMSC	Wed, Mar 29, 2000	463.75	472.50	435.00	449.38
1979	NASDAQ	AMSC	Tue, Mar 28, 2000	531.88	535.00	440.00	466.25
1978	NASDAQ	AMSC	Mon, Mar 27, 2000	520.00	555.00	510.00	518.75
1977	NASDAQ	AMSC	Fri, Mar 24, 2000	520.00	527.50	480.00	486.25
1976	NASDAQ	AMSC	Thu, Mar 23, 2000	556.25	562.50	485.00	500.00
1975	NASDAQ	AMSC	Wed, Mar 22, 2000	435.00	530.00	432.50	522.50
1974	NASDAQ	AMSC	Tue, Mar 21, 2000	398.13	431.88	387.50	422.50
1973	NASDAQ	AMSC	Mon, Mar 20, 2000	470.00	472.50	395.00	398.75
1972	NASDAQ	AMSC	Fri, Mar 17, 2000	402.50	445.00	402.50	443.75
1971	NASDAQ	AMSC	Thu, Mar 16, 2000	380.00	415.00	360.00	411.88
1970	NASDAQ	AMSC	Wed, Mar 15, 2000	411.25	415.00	355.00	366.25
1969	NASDAQ	AMSC	Tue, Mar 14, 2000	450.00	451.25	410.00	413.75
1968	NASDAQ	AMSC	Mon, Mar 13, 2000	380.00	512.50	379.38	440.63
1967	NASDAQ	AMSC	Fri, Mar 10, 2000	482.50	535.00	450.00	455.00
1966	NASDAQ	AMSC	Thu, Mar 9, 2000	475.63	487.50	461.25	483.13
1965	NASDAQ	AMSC	Wed, Mar 8, 2000	503.75	503.75	451.25	475.00
1964	NASDAQ	AMSC	Tue, Mar 7, 2000	561.88	570.00	497.50	500.31
1963	NASDAQ	AMSC	Mon, Mar 6, 2000	628.75	630.00	562.50	571.25
1962	NASDAQ	AMSC	Fri, Mar 3, 2000	668.75	673.75	623.13	630.00
1961	NASDAQ	AMSC	Thu, Mar 2, 2000	626.25	692.50	615.00	660.00
1960	NASDAQ	AMSC	Wed, Mar 1, 2000	642.50	646.25	613.75	628.13
1959	NASDAQ	AMSC	Tue, Feb 29, 2000	740.00	745.00	632.50	690.63
1958	NASDAQ	AMSC	Mon, Feb 28, 2000	640.00	751.25	634.38	692.50
1957	NASDAQ	AMSC	Fri, Feb 25, 2000	565.00	655.00	560.00	623.75
1956	NASDAQ	AMSC	Thu, Feb 24, 2000	595.00	610.00	552.50	588.75
1955	NASDAQ	AMSC	Wed, Feb 23, 2000	498.75	612.50	497.50	612.50
1954	NASDAQ	AMSC	Tue, Feb 22, 2000	451.25	502.50	430.00	495.00
1953	NASDAQ	AMSC	Fri, Feb 18, 2000	449.38	452.50	400.00	433.75
1952	NASDAQ	AMSC	Thu, Feb 17, 2000	393.75	459.22	350.00	428.75
1951	NASDAQ	AMSC	Wed, Feb 16, 2000	321.25	400.00	320.00	363.13
1950	NASDAQ	AMSC	Tue, Feb 15, 2000	320.63	322.50	307.50	321.25
1949	NASDAQ	AMSC	Mon, Feb 14, 2000	326.25	326.25	317.50	320.63
1948	NASDAQ	AMSC	Fri, Feb 11, 2000	340.00	340.00	311.25	320.63
1947	NASDAQ	AMSC	Thu, Feb 10, 2000	317.50	340.00	315.00	328.75
1946	NASDAQ	AMSC	Wed, Feb 9, 2000	314.38	327.50	305.00	313.13
1945	NASDAQ	AMSC	Tue, Feb 8, 2000	276.25	303.75	275.63	300.00
1944	NASDAQ	AMSC	Mon, Feb 7, 2000	277.50	280.00	275.00	277.50
1943	NASDAQ	AMSC	Fri, Feb 4, 2000	278.75	280.00	272.50	276.25
1942	NASDAQ	AMSC	Thu, Feb 3, 2000	271.25	281.25	265.00	280.00
1941	NASDAQ	AMSC	Wed, Feb 2, 2000	271.25	278.75	257.50	271.25
1940	NASDAQ	AMSC	Tue, Feb 1, 2000	271.25	275.63	257.50	271.25
1939	NASDAQ	AMSC	Mon, Jan 31, 2000	260.00	280.00	251.88	266.25
1938	NASDAQ	AMSC	Fri, Jan 28, 2000	291.88	301.25	266.25	270.00
1937	NASDAQ	AMSC	Thu, Jan 27, 2000	312.50	317.50	291.25	300.00
1936	NASDAQ	AMSC	Wed, Jan 26, 2000	300.00	340.00	293.75	315.00
1935	NASDAQ	AMSC	Tue, Jan 25, 2000	330.00	330.00	295.00	300.00
1934	NASDAQ	AMSC	Mon, Jan 24, 2000	367.50	372.50	316.41	319.38
1933	NASDAQ	AMSC	Fri, Jan 21, 2000	320.00	356.25	319.38	347.50
1932	NASDAQ	AMSC	Thu, Jan 20, 2000	310.00	322.50	308.75	313.75
1931	NASDAQ	AMSC	Wed, Jan 19, 2000	288.75	310.00	283.75	306.25
1930	NASDAQ	AMSC	Tue, Jan 18, 2000	285.00	290.00	283.75	288.13
1929	NASDAQ	AMSC	Fri, Jan 14, 2000	298.75	300.00	282.50	283.75
1928	NASDAQ	AMSC	Thu, Jan 13, 2000	269.38	296.25	267.50	295.00
1927	NASDAQ	AMSC	Wed, Jan 12, 2000	276.25	276.88	254.38	258.75
1926	NASDAQ	AMSC	Tue, Jan 11, 2000	286.88	290.00	273.75	278.13
1925	NASDAQ	AMSC	Mon, Jan 10, 2000	290.63	293.13	283.75	285.00
1924	NASDAQ	AMSC	Fri, Jan 7, 2000	275.00	296.25	275.00	287.50
1923	NASDAQ	AMSC	Thu, Jan 6, 2000	273.75	283.75	273.75	278.13
1922	NASDAQ	AMSC	Wed, Jan 5, 2000	280.63	284.38	262.50	278.13
1921	NASDAQ	AMSC	Tue, Jan 4, 2000	286.25	297.50	275.00	280.00
1920	NASDAQ	AMSC	Mon, Jan 3, 2000	286.25	328.75	283.75	295.63
1919	NASDAQ	AMSC	Fri, Dec 31, 1999	276.25	288.75	275.63	280.00
1918	NASDAQ	AMSC	Thu, Dec 30, 1999	281.25	281.25	273.13	273.13
1917	NASDAQ	AMSC	Wed, Dec 29, 1999	274.38	284.38	266.88	277.50
1916	NASDAQ	AMSC	Tue, Dec 28, 1999	227.19	270.00	226.88	270.00
1915	NASDAQ	AMSC	Mon, Dec 27, 1999	235.31	236.25	223.75	232.50
1914	NASDAQ	AMSC	Thu, Dec 23, 1999	249.38	249.38	231.25	235.00
1913	NASDAQ	AMSC	Wed, Dec 22, 1999	245.00	251.88	243.75	246.25
1912	NASDAQ	AMSC	Tue, Dec 21, 1999	234.38	243.75	226.25	243.75
1911	NASDAQ	AMSC	Mon, Dec 20, 1999	238.75	261.88	223.75	232.50
1910	NASDAQ	AMSC	Fri, Dec 17, 1999	253.13	273.13	226.25	237.50
1909	NASDAQ	AMSC	Thu, Dec 16, 1999	225.00	246.25	221.25	245.63
1908	NASDAQ	AMSC	Wed, Dec 15, 1999	197.50	217.50	193.75	213.75
1907	NASDAQ	AMSC	Tue, Dec 14, 1999	195.00	200.00	192.50	197.50
1906	NASDAQ	AMSC	Mon, Dec 13, 1999	177.50	195.00	177.50	195.00
1905	NASDAQ	AMSC	Fri, Dec 10, 1999	187.50	187.50	177.50	180.00
1904	NASDAQ	AMSC	Thu, Dec 9, 1999	194.38	195.00	181.25	183.75
1903	NASDAQ	AMSC	Wed, Dec 8, 1999	200.63	200.63	192.50	193.75
1902	NASDAQ	AMSC	Tue, Dec 7, 1999	193.75	198.75	193.75	195.00
1901	NASDAQ	AMSC	Mon, Dec 6, 1999	195.63	200.00	191.25	196.25
1900	NASDAQ	AMSC	Fri, Dec 3, 1999	197.50	200.00	193.13	193.13
1899	NASDAQ	AMSC	Thu, Dec 2, 1999	193.13	195.00	190.00	195.00
1898	NASDAQ	AMSC	Wed, Dec 1, 1999	190.00	195.00	187.50	195.00
1897	NASDAQ	AMSC	Tue, Nov 30, 1999	197.50	197.50	183.75	190.00
1896	NASDAQ	AMSC	Mon, Nov 29, 1999	201.88	202.50	193.13	196.25
1895	NASDAQ	AMSC	Fri, Nov 26, 1999	198.75	198.75	193.75	197.50
1894	NASDAQ	AMSC	Wed, Nov 24, 1999	200.00	200.63	192.50	192.50
1893	NASDAQ	AMSC	Tue, Nov 23, 1999	195.00	197.50	193.75	196.25
1892	NASDAQ	AMSC	Mon, Nov 22, 1999	200.00	200.00	193.75	195.00
1891	NASDAQ	AMSC	Fri, Nov 19, 1999	203.75	213.75	200.00	202.50
1890	NASDAQ	AMSC	Thu, Nov 18, 1999	204.38	208.75	197.50	201.25
1889	NASDAQ	AMSC	Wed, Nov 17, 1999	204.38	207.50	201.25	201.25
1888	NASDAQ	AMSC	Tue, Nov 16, 1999	194.38	202.50	192.50	200.00
1887	NASDAQ	AMSC	Mon, Nov 15, 1999	195.00	196.25	190.00	191.25
1886	NASDAQ	AMSC	Fri, Nov 12, 1999	192.50	196.25	191.25	191.88
1885	NASDAQ	AMSC	Thu, Nov 11, 1999	195.00	196.25	190.63	191.25
1884	NASDAQ	AMSC	Wed, Nov 10, 1999	183.75	194.38	183.75	193.13
1883	NASDAQ	AMSC	Tue, Nov 9, 1999	195.00	195.00	185.00	188.75
1882	NASDAQ	AMSC	Mon, Nov 8, 1999	194.38	195.00	187.50	192.50
1881	NASDAQ	AMSC	Fri, Nov 5, 1999	195.00	195.00	180.00	193.75
1880	NASDAQ	AMSC	Thu, Nov 4, 1999	200.94	201.25	187.50	193.75
1879	NASDAQ	AMSC	Wed, Nov 3, 1999	193.75	203.75	193.13	201.88
1878	NASDAQ	AMSC	Tue, Nov 2, 1999	190.00	203.75	190.00	196.25
1877	NASDAQ	AMSC	Mon, Nov 1, 1999	180.00	190.00	178.75	188.75
1876	NASDAQ	AMSC	Fri, Oct 29, 1999	183.75	183.75	176.25	178.13
1875	NASDAQ	AMSC	Thu, Oct 28, 1999	186.25	186.25	182.50	184.38
1874	NASDAQ	AMSC	Wed, Oct 27, 1999	171.88	185.00	171.25	183.75
1873	NASDAQ	AMSC	Tue, Oct 26, 1999	168.75	171.25	167.50	171.25
1872	NASDAQ	AMSC	Mon, Oct 25, 1999	165.63	168.75	164.69	167.50
1871	NASDAQ	AMSC	Fri, Oct 22, 1999	160.00	166.25	160.00	165.63
1870	NASDAQ	AMSC	Thu, Oct 21, 1999	160.00	161.25	158.13	161.25
1869	NASDAQ	AMSC	Wed, Oct 20, 1999	160.00	161.88	158.75	160.00
1868	NASDAQ	AMSC	Tue, Oct 19, 1999	160.00	162.50	159.38	161.25
1867	NASDAQ	AMSC	Mon, Oct 18, 1999	160.00	162.50	156.88	160.00
1866	NASDAQ	AMSC	Fri, Oct 15, 1999	170.00	170.00	155.63	159.38
1865	NASDAQ	AMSC	Thu, Oct 14, 1999	170.63	173.75	170.00	170.00
1864	NASDAQ	AMSC	Wed, Oct 13, 1999	172.50	175.63	167.50	173.75
1863	NASDAQ	AMSC	Tue, Oct 12, 1999	185.00	185.00	173.75	177.50
1862	NASDAQ	AMSC	Mon, Oct 11, 1999	166.25	180.00	165.00	180.00
1861	NASDAQ	AMSC	Fri, Oct 8, 1999	165.63	165.63	160.00	165.00
1860	NASDAQ	AMSC	Thu, Oct 7, 1999	169.38	169.38	161.88	165.63
1859	NASDAQ	AMSC	Wed, Oct 6, 1999	168.13	170.00	167.50	168.13
1858	NASDAQ	AMSC	Tue, Oct 5, 1999	165.63	171.25	165.00	166.25
1857	NASDAQ	AMSC	Mon, Oct 4, 1999	165.00	171.25	161.25	165.63
1856	NASDAQ	AMSC	Fri, Oct 1, 1999	162.50	165.00	155.00	163.75
1855	NASDAQ	AMSC	Thu, Sep 30, 1999	155.63	166.25	153.75	153.75
1854	NASDAQ	AMSC	Wed, Sep 29, 1999	140.00	155.00	135.00	152.50
1853	NASDAQ	AMSC	Tue, Sep 28, 1999	134.69	135.00	133.13	133.75
1852	NASDAQ	AMSC	Mon, Sep 27, 1999	128.75	135.00	128.75	135.00
1851	NASDAQ	AMSC	Fri, Sep 24, 1999	128.75	130.00	127.50	128.75
1850	NASDAQ	AMSC	Thu, Sep 23, 1999	129.38	131.25	128.75	130.00
1849	NASDAQ	AMSC	Wed, Sep 22, 1999	130.63	131.25	129.38	130.00
1848	NASDAQ	AMSC	Tue, Sep 21, 1999	128.75	131.25	128.75	130.00
1847	NASDAQ	AMSC	Mon, Sep 20, 1999	130.00	131.25	128.75	130.00
1846	NASDAQ	AMSC	Fri, Sep 17, 1999	131.88	131.88	128.75	129.38
1845	NASDAQ	AMSC	Thu, Sep 16, 1999	129.38	131.25	128.75	130.00
1844	NASDAQ	AMSC	Wed, Sep 15, 1999	131.25	131.25	128.13	130.00
1843	NASDAQ	AMSC	Tue, Sep 14, 1999	133.75	133.75	125.00	130.00
1842	NASDAQ	AMSC	Mon, Sep 13, 1999	136.25	136.25	133.75	133.75
1841	NASDAQ	AMSC	Fri, Sep 10, 1999	130.63	137.50	130.63	137.50
1840	NASDAQ	AMSC	Thu, Sep 9, 1999	126.25	131.88	125.00	131.25
1839	NASDAQ	AMSC	Wed, Sep 8, 1999	123.75	128.13	122.50	125.00
1838	NASDAQ	AMSC	Tue, Sep 7, 1999	121.25	124.38	120.00	121.25
1837	NASDAQ	AMSC	Fri, Sep 3, 1999	126.25	126.25	121.25	125.00
1836	NASDAQ	AMSC	Thu, Sep 2, 1999	127.50	127.50	120.00	121.25
1835	NASDAQ	AMSC	Wed, Sep 1, 1999	121.25	127.50	121.25	126.25
1834	NASDAQ	AMSC	Tue, Aug 31, 1999	123.75	123.75	118.13	121.25
1833	NASDAQ	AMSC	Mon, Aug 30, 1999	128.75	131.25	121.25	126.25
1832	NASDAQ	AMSC	Fri, Aug 27, 1999	128.13	131.25	126.88	131.25
1831	NASDAQ	AMSC	Thu, Aug 26, 1999	128.75	131.25	127.50	128.75
1830	NASDAQ	AMSC	Wed, Aug 25, 1999	130.63	131.25	127.50	129.69
1829	NASDAQ	AMSC	Tue, Aug 24, 1999	133.75	133.75	125.00	130.63
1828	NASDAQ	AMSC	Mon, Aug 23, 1999	132.50	135.00	130.00	132.50
1827	NASDAQ	AMSC	Fri, Aug 20, 1999	130.00	134.38	130.00	133.75
1826	NASDAQ	AMSC	Thu, Aug 19, 1999	127.50	130.00	126.25	130.00
1825	NASDAQ	AMSC	Wed, Aug 18, 1999	128.13	131.25	126.25	129.38
1824	NASDAQ	AMSC	Tue, Aug 17, 1999	130.00	130.63	126.25	130.63
1823	NASDAQ	AMSC	Mon, Aug 16, 1999	133.13	135.63	130.00	130.63
1822	NASDAQ	AMSC	Fri, Aug 13, 1999	136.25	136.25	131.25	133.13
1821	NASDAQ	AMSC	Thu, Aug 12, 1999	135.00	136.25	133.75	135.00
1820	NASDAQ	AMSC	Wed, Aug 11, 1999	131.25	135.00	131.25	135.00
1819	NASDAQ	AMSC	Tue, Aug 10, 1999	131.25	135.00	131.25	135.00
1818	NASDAQ	AMSC	Mon, Aug 9, 1999	136.25	136.25	131.25	131.25
1817	NASDAQ	AMSC	Fri, Aug 6, 1999	132.50	136.25	132.50	136.25
1816	NASDAQ	AMSC	Thu, Aug 5, 1999	130.00	131.25	126.88	131.25
1815	NASDAQ	AMSC	Wed, Aug 4, 1999	137.50	137.50	130.00	132.50
1814	NASDAQ	AMSC	Tue, Aug 3, 1999	138.13	138.75	135.00	137.50
1813	NASDAQ	AMSC	Mon, Aug 2, 1999	140.00	141.25	137.50	138.75
1812	NASDAQ	AMSC	Fri, Jul 30, 1999	141.25	142.50	138.75	140.00
1811	NASDAQ	AMSC	Thu, Jul 29, 1999	138.75	142.50	137.50	141.25
1810	NASDAQ	AMSC	Wed, Jul 28, 1999	140.00	141.25	135.00	141.25
1809	NASDAQ	AMSC	Tue, Jul 27, 1999	140.00	141.25	132.50	136.88
1808	NASDAQ	AMSC	Mon, Jul 26, 1999	133.75	141.25	132.50	137.50
1807	NASDAQ	AMSC	Fri, Jul 23, 1999	136.56	140.00	135.63	135.63
1806	NASDAQ	AMSC	Thu, Jul 22, 1999	136.88	140.00	135.00	137.50
1805	NASDAQ	AMSC	Wed, Jul 21, 1999	142.50	143.75	139.38	139.38
1804	NASDAQ	AMSC	Tue, Jul 20, 1999	143.13	145.00	141.88	142.50
1803	NASDAQ	AMSC	Mon, Jul 19, 1999	150.00	150.00	141.88	145.00
1802	NASDAQ	AMSC	Fri, Jul 16, 1999	153.75	155.00	147.50	150.00
1801	NASDAQ	AMSC	Thu, Jul 15, 1999	155.00	156.25	151.25	155.00
1800	NASDAQ	AMSC	Wed, Jul 14, 1999	148.75	155.63	146.25	155.00
1799	NASDAQ	AMSC	Tue, Jul 13, 1999	147.50	148.75	146.25	146.25
1798	NASDAQ	AMSC	Mon, Jul 12, 1999	158.75	159.38	148.75	150.00
1797	NASDAQ	AMSC	Fri, Jul 9, 1999	166.88	167.50	161.25	163.75
1796	NASDAQ	AMSC	Thu, Jul 8, 1999	165.63	166.25	161.25	166.25
1795	NASDAQ	AMSC	Wed, Jul 7, 1999	160.00	165.00	157.50	165.00
1794	NASDAQ	AMSC	Tue, Jul 6, 1999	150.63	160.00	150.00	160.00
1793	NASDAQ	AMSC	Fri, Jul 2, 1999	148.75	152.50	148.75	150.63
1792	NASDAQ	AMSC	Thu, Jul 1, 1999	150.00	150.63	148.13	150.00
1791	NASDAQ	AMSC	Wed, Jun 30, 1999	134.38	150.63	134.38	149.38
1790	NASDAQ	AMSC	Tue, Jun 29, 1999	132.50	137.50	128.75	133.75
1789	NASDAQ	AMSC	Mon, Jun 28, 1999	134.38	137.50	132.50	132.50
1788	NASDAQ	AMSC	Fri, Jun 25, 1999	126.25	135.00	124.38	135.00
1787	NASDAQ	AMSC	Thu, Jun 24, 1999	133.75	137.50	120.00	126.25
1786	NASDAQ	AMSC	Wed, Jun 23, 1999	137.50	138.13	135.00	135.00
1785	NASDAQ	AMSC	Tue, Jun 22, 1999	140.00	142.50	136.25	138.75
1784	NASDAQ	AMSC	Mon, Jun 21, 1999	142.50	145.00	140.63	141.88
1783	NASDAQ	AMSC	Fri, Jun 18, 1999	142.50	145.00	142.50	142.50
1782	NASDAQ	AMSC	Thu, Jun 17, 1999	142.50	145.00	142.50	142.50
1781	NASDAQ	AMSC	Wed, Jun 16, 1999	147.50	147.50	142.50	143.75
1780	NASDAQ	AMSC	Tue, Jun 15, 1999	146.25	147.50	144.38	146.25
1779	NASDAQ	AMSC	Mon, Jun 14, 1999	145.63	150.00	145.63	147.50
1778	NASDAQ	AMSC	Fri, Jun 11, 1999	148.75	148.75	143.75	146.25
1777	NASDAQ	AMSC	Thu, Jun 10, 1999	146.88	148.75	145.00	146.25
1776	NASDAQ	AMSC	Wed, Jun 9, 1999	146.25	148.75	143.75	146.88
1775	NASDAQ	AMSC	Tue, Jun 8, 1999	146.25	153.13	141.25	145.63
1774	NASDAQ	AMSC	Mon, Jun 7, 1999	140.63	156.88	138.75	146.25
1773	NASDAQ	AMSC	Fri, Jun 4, 1999	138.75	140.00	137.50	140.00
1772	NASDAQ	AMSC	Thu, Jun 3, 1999	127.50	138.75	127.50	138.75
1771	NASDAQ	AMSC	Wed, Jun 2, 1999	126.88	130.00	126.25	128.13
1770	NASDAQ	AMSC	Tue, Jun 1, 1999	125.63	130.00	125.63	130.00
1769	NASDAQ	AMSC	Fri, May 28, 1999	126.25	128.75	125.63	127.50
1768	NASDAQ	AMSC	Thu, May 27, 1999	122.50	129.38	122.50	128.75
1767	NASDAQ	AMSC	Wed, May 26, 1999	117.50	123.75	115.00	123.75
1766	NASDAQ	AMSC	Tue, May 25, 1999	120.00	120.00	116.25	120.00
1765	NASDAQ	AMSC	Mon, May 24, 1999	118.75	120.00	115.00	118.75
1764	NASDAQ	AMSC	Fri, May 21, 1999	115.00	117.50	114.38	117.50
1763	NASDAQ	AMSC	Thu, May 20, 1999	116.25	121.25	114.38	114.38
1762	NASDAQ	AMSC	Wed, May 19, 1999	115.00	120.00	115.00	116.88
1761	NASDAQ	AMSC	Tue, May 18, 1999	122.50	126.25	112.50	117.50
1760	NASDAQ	AMSC	Mon, May 17, 1999	123.75	125.00	121.25	123.75
1759	NASDAQ	AMSC	Fri, May 14, 1999	117.50	126.25	116.25	125.00
1758	NASDAQ	AMSC	Thu, May 13, 1999	111.25	122.50	110.00	122.50
1757	NASDAQ	AMSC	Wed, May 12, 1999	110.00	111.25	108.13	110.00
1756	NASDAQ	AMSC	Tue, May 11, 1999	113.75	113.75	107.50	108.75
1755	NASDAQ	AMSC	Mon, May 10, 1999	118.13	121.25	110.63	110.63
1754	NASDAQ	AMSC	Fri, May 7, 1999	122.50	122.50	117.50	120.00
1753	NASDAQ	AMSC	Thu, May 6, 1999	127.50	128.75	122.50	122.50
1752	NASDAQ	AMSC	Wed, May 5, 1999	132.50	132.50	123.75	127.50
1751	NASDAQ	AMSC	Tue, May 4, 1999	125.00	131.25	122.50	131.25
1750	NASDAQ	AMSC	Mon, May 3, 1999	125.00	132.50	122.50	123.75
1749	NASDAQ	AMSC	Fri, Apr 30, 1999	112.50	125.00	112.50	125.00
1748	NASDAQ	AMSC	Thu, Apr 29, 1999	110.00	113.75	106.88	113.75
1747	NASDAQ	AMSC	Wed, Apr 28, 1999	106.88	110.00	106.88	108.75
1746	NASDAQ	AMSC	Tue, Apr 27, 1999	110.00	111.25	105.00	108.13
1745	NASDAQ	AMSC	Mon, Apr 26, 1999	110.00	113.75	110.00	112.50
1744	NASDAQ	AMSC	Fri, Apr 23, 1999	107.50	108.75	105.00	108.75
1743	NASDAQ	AMSC	Thu, Apr 22, 1999	108.75	108.75	105.00	107.50
1742	NASDAQ	AMSC	Wed, Apr 21, 1999	107.50	107.50	100.63	106.25
1741	NASDAQ	AMSC	Tue, Apr 20, 1999	106.25	108.75	101.25	107.50
1740	NASDAQ	AMSC	Mon, Apr 19, 1999	106.25	106.25	102.50	106.25
1739	NASDAQ	AMSC	Fri, Apr 16, 1999	103.75	106.25	102.50	104.38
1738	NASDAQ	AMSC	Thu, Apr 15, 1999	107.50	107.50	101.25	101.25
1737	NASDAQ	AMSC	Wed, Apr 14, 1999	101.88	107.50	101.88	107.50
1736	NASDAQ	AMSC	Tue, Apr 13, 1999	97.50	105.00	95.00	101.25
1735	NASDAQ	AMSC	Mon, Apr 12, 1999	100.00	100.00	95.00	97.50
1734	NASDAQ	AMSC	Fri, Apr 9, 1999	102.50	102.50	97.50	98.75
1733	NASDAQ	AMSC	Thu, Apr 8, 1999	101.25	102.50	98.75	101.88
1732	NASDAQ	AMSC	Wed, Apr 7, 1999	91.25	100.00	90.63	98.75
1731	NASDAQ	AMSC	Tue, Apr 6, 1999	90.00	90.00	87.50	88.75
1730	NASDAQ	AMSC	Mon, Apr 5, 1999	90.00	90.00	85.63	88.13
1729	NASDAQ	AMSC	Thu, Apr 1, 1999	91.25	91.25	85.00	88.75
1728	NASDAQ	AMSC	Wed, Mar 31, 1999	88.75	91.25	85.63	91.25
1727	NASDAQ	AMSC	Tue, Mar 30, 1999	88.75	88.75	83.75	87.50
1726	NASDAQ	AMSC	Mon, Mar 29, 1999	86.88	88.75	83.75	88.75
1725	NASDAQ	AMSC	Fri, Mar 26, 1999	90.63	92.50	83.75	86.25
1724	NASDAQ	AMSC	Thu, Mar 25, 1999	96.25	96.25	90.00	91.25
1723	NASDAQ	AMSC	Wed, Mar 24, 1999	95.00	95.00	92.50	95.00
1722	NASDAQ	AMSC	Tue, Mar 23, 1999	95.63	97.50	91.25	95.00
1721	NASDAQ	AMSC	Mon, Mar 22, 1999	98.75	98.75	95.00	95.63
1720	NASDAQ	AMSC	Fri, Mar 19, 1999	100.00	100.00	98.13	98.13
1719	NASDAQ	AMSC	Thu, Mar 18, 1999	100.63	100.63	97.50	98.13
1718	NASDAQ	AMSC	Wed, Mar 17, 1999	101.25	102.50	100.00	100.00
1717	NASDAQ	AMSC	Tue, Mar 16, 1999	101.25	102.50	101.25	101.25
1716	NASDAQ	AMSC	Mon, Mar 15, 1999	98.13	102.50	98.13	101.88
1715	NASDAQ	AMSC	Fri, Mar 12, 1999	98.75	101.88	98.13	98.75
1714	NASDAQ	AMSC	Thu, Mar 11, 1999	98.13	101.25	98.13	98.75
1713	NASDAQ	AMSC	Wed, Mar 10, 1999	100.63	101.25	98.13	98.75
1712	NASDAQ	AMSC	Tue, Mar 9, 1999	102.50	103.75	100.00	100.63
1711	NASDAQ	AMSC	Mon, Mar 8, 1999	103.75	105.00	101.88	102.50
1710	NASDAQ	AMSC	Fri, Mar 5, 1999	103.75	103.75	101.25	102.50
1709	NASDAQ	AMSC	Thu, Mar 4, 1999	105.00	105.00	101.25	101.88
1708	NASDAQ	AMSC	Wed, Mar 3, 1999	101.88	103.75	101.88	102.50
1707	NASDAQ	AMSC	Tue, Mar 2, 1999	101.88	106.25	101.88	102.50
1706	NASDAQ	AMSC	Mon, Mar 1, 1999	107.50	107.50	102.50	102.50
1705	NASDAQ	AMSC	Fri, Feb 26, 1999	110.00	110.00	103.13	103.13
1704	NASDAQ	AMSC	Thu, Feb 25, 1999	110.00	111.25	107.50	107.50
1703	NASDAQ	AMSC	Wed, Feb 24, 1999	117.50	117.50	108.75	110.00
1702	NASDAQ	AMSC	Tue, Feb 23, 1999	120.00	121.25	118.75	120.63
1701	NASDAQ	AMSC	Mon, Feb 22, 1999	121.25	122.50	120.00	121.25
1700	NASDAQ	AMSC	Fri, Feb 19, 1999	120.00	122.50	120.00	120.00
1699	NASDAQ	AMSC	Thu, Feb 18, 1999	122.50	122.50	118.75	120.00
1698	NASDAQ	AMSC	Wed, Feb 17, 1999	125.00	125.00	118.75	123.75
1697	NASDAQ	AMSC	Tue, Feb 16, 1999	122.50	128.75	120.00	122.50
1696	NASDAQ	AMSC	Fri, Feb 12, 1999	120.00	122.50	117.50	120.00
1695	NASDAQ	AMSC	Thu, Feb 11, 1999	117.50	122.50	117.50	120.63
1694	NASDAQ	AMSC	Wed, Feb 10, 1999	112.50	117.50	112.50	115.00
1693	NASDAQ	AMSC	Tue, Feb 9, 1999	118.75	123.75	111.25	112.50
1692	NASDAQ	AMSC	Mon, Feb 8, 1999	131.25	132.50	118.75	118.75
1691	NASDAQ	AMSC	Fri, Feb 5, 1999	130.00	133.75	127.50	131.25
1690	NASDAQ	AMSC	Thu, Feb 4, 1999	123.75	130.00	123.75	130.00
1689	NASDAQ	AMSC	Wed, Feb 3, 1999	131.25	132.50	123.13	123.75
1688	NASDAQ	AMSC	Tue, Feb 2, 1999	140.63	146.25	132.50	133.75
1687	NASDAQ	AMSC	Mon, Feb 1, 1999	116.25	136.25	116.25	135.00
1686	NASDAQ	AMSC	Fri, Jan 29, 1999	110.00	117.50	108.75	117.50
1685	NASDAQ	AMSC	Thu, Jan 28, 1999	101.88	112.50	101.88	111.88
1684	NASDAQ	AMSC	Wed, Jan 27, 1999	103.75	103.75	100.63	100.63
1683	NASDAQ	AMSC	Tue, Jan 26, 1999	100.63	103.75	100.00	103.13
1682	NASDAQ	AMSC	Mon, Jan 25, 1999	102.50	105.00	100.63	101.25
1681	NASDAQ	AMSC	Fri, Jan 22, 1999	105.00	105.00	100.00	104.38
1680	NASDAQ	AMSC	Thu, Jan 21, 1999	105.00	105.00	100.63	102.50
1679	NASDAQ	AMSC	Wed, Jan 20, 1999	105.00	105.00	100.00	103.75
1678	NASDAQ	AMSC	Tue, Jan 19, 1999	103.75	104.38	100.63	103.75
1677	NASDAQ	AMSC	Fri, Jan 15, 1999	106.88	106.88	100.00	103.13
1676	NASDAQ	AMSC	Thu, Jan 14, 1999	103.13	106.25	102.50	105.63
1675	NASDAQ	AMSC	Wed, Jan 13, 1999	102.50	106.25	102.50	105.00
1674	NASDAQ	AMSC	Tue, Jan 12, 1999	106.25	107.50	103.75	105.00
1673	NASDAQ	AMSC	Mon, Jan 11, 1999	103.75	108.75	103.75	108.75
1672	NASDAQ	AMSC	Fri, Jan 8, 1999	107.50	108.75	103.75	104.38
1671	NASDAQ	AMSC	Thu, Jan 7, 1999	103.75	108.75	103.75	107.50
1670	NASDAQ	AMSC	Wed, Jan 6, 1999	110.00	110.00	105.00	107.50
1669	NASDAQ	AMSC	Tue, Jan 5, 1999	106.88	113.75	105.00	106.25
1668	NASDAQ	AMSC	Mon, Jan 4, 1999	105.00	106.25	103.13	105.63
1667	NASDAQ	AMSC	Thu, Dec 31, 1998	99.38	103.75	98.75	102.50
1666	NASDAQ	AMSC	Wed, Dec 30, 1998	99.38	103.75	98.75	99.38
1665	NASDAQ	AMSC	Tue, Dec 29, 1998	103.75	103.75	99.38	102.50
1664	NASDAQ	AMSC	Mon, Dec 28, 1998	107.50	108.13	100.00	101.25
1663	NASDAQ	AMSC	Thu, Dec 24, 1998	106.25	106.88	103.75	106.88
1662	NASDAQ	AMSC	Wed, Dec 23, 1998	102.50	106.25	100.00	106.25
1661	NASDAQ	AMSC	Tue, Dec 22, 1998	98.75	103.75	98.75	102.50
1660	NASDAQ	AMSC	Mon, Dec 21, 1998	107.50	111.25	98.75	99.38
1659	NASDAQ	AMSC	Fri, Dec 18, 1998	107.50	110.00	106.25	110.00
1658	NASDAQ	AMSC	Thu, Dec 17, 1998	107.50	108.13	106.88	106.88
1657	NASDAQ	AMSC	Wed, Dec 16, 1998	107.50	112.50	106.88	106.88
1656	NASDAQ	AMSC	Tue, Dec 15, 1998	113.75	113.75	107.50	107.50
1655	NASDAQ	AMSC	Mon, Dec 14, 1998	106.25	113.75	105.00	112.50
1654	NASDAQ	AMSC	Fri, Dec 11, 1998	106.88	109.38	106.25	108.75
1653	NASDAQ	AMSC	Thu, Dec 10, 1998	106.25	110.00	106.25	106.25
1652	NASDAQ	AMSC	Wed, Dec 9, 1998	108.75	108.75	106.25	107.50
1651	NASDAQ	AMSC	Tue, Dec 8, 1998	116.25	117.50	110.00	110.00
1650	NASDAQ	AMSC	Mon, Dec 7, 1998	115.00	119.38	115.00	118.75
1649	NASDAQ	AMSC	Fri, Dec 4, 1998	110.00	118.75	105.00	118.75
1648	NASDAQ	AMSC	Thu, Dec 3, 1998	103.75	115.00	101.88	105.00
1647	NASDAQ	AMSC	Wed, Dec 2, 1998	102.50	102.50	98.75	102.50
1646	NASDAQ	AMSC	Tue, Dec 1, 1998	100.00	101.25	93.75	101.25
1645	NASDAQ	AMSC	Mon, Nov 30, 1998	100.00	102.50	96.88	100.00
1644	NASDAQ	AMSC	Fri, Nov 27, 1998	98.75	102.50	98.75	100.00
1643	NASDAQ	AMSC	Wed, Nov 25, 1998	102.50	104.38	98.75	98.75
1642	NASDAQ	AMSC	Tue, Nov 24, 1998	102.50	105.00	102.50	103.13
1641	NASDAQ	AMSC	Mon, Nov 23, 1998	105.00	106.88	101.25	102.50
1640	NASDAQ	AMSC	Fri, Nov 20, 1998	108.13	108.13	102.50	105.63
1639	NASDAQ	AMSC	Thu, Nov 19, 1998	105.00	108.13	105.00	108.13
1638	NASDAQ	AMSC	Wed, Nov 18, 1998	102.50	107.50	102.50	107.50
1637	NASDAQ	AMSC	Tue, Nov 17, 1998	103.75	106.25	102.50	102.50
1636	NASDAQ	AMSC	Mon, Nov 16, 1998	108.13	108.13	102.50	103.75
1635	NASDAQ	AMSC	Fri, Nov 13, 1998	105.63	105.63	102.50	105.63
1634	NASDAQ	AMSC	Thu, Nov 12, 1998	105.63	106.25	102.50	105.63
1633	NASDAQ	AMSC	Wed, Nov 11, 1998	102.50	106.25	102.50	102.50
1632	NASDAQ	AMSC	Tue, Nov 10, 1998	102.50	106.25	100.00	103.75
1631	NASDAQ	AMSC	Mon, Nov 9, 1998	105.00	108.13	102.50	102.50
1630	NASDAQ	AMSC	Fri, Nov 6, 1998	106.25	106.88	102.50	106.25
1629	NASDAQ	AMSC	Thu, Nov 5, 1998	104.38	107.50	98.75	103.75
1628	NASDAQ	AMSC	Wed, Nov 4, 1998	115.00	121.25	106.25	110.00
1627	NASDAQ	AMSC	Tue, Nov 3, 1998	107.50	113.75	105.00	110.00
1626	NASDAQ	AMSC	Mon, Nov 2, 1998	101.25	107.50	100.00	103.75
1625	NASDAQ	AMSC	Fri, Oct 30, 1998	100.00	105.00	96.88	98.75
1624	NASDAQ	AMSC	Thu, Oct 29, 1998	91.25	105.00	91.25	101.88
1623	NASDAQ	AMSC	Wed, Oct 28, 1998	91.25	93.13	90.63	91.25
1622	NASDAQ	AMSC	Tue, Oct 27, 1998	91.88	95.00	88.75	91.88
1621	NASDAQ	AMSC	Mon, Oct 26, 1998	92.50	92.50	87.50	90.00
1620	NASDAQ	AMSC	Fri, Oct 23, 1998	95.00	97.50	87.50	90.00
1619	NASDAQ	AMSC	Thu, Oct 22, 1998	85.00	93.75	81.25	91.25
1618	NASDAQ	AMSC	Wed, Oct 21, 1998	95.00	98.75	86.25	90.00
1617	NASDAQ	AMSC	Tue, Oct 20, 1998	105.00	110.00	94.38	95.00
1616	NASDAQ	AMSC	Mon, Oct 19, 1998	75.00	105.00	71.25	105.00
1615	NASDAQ	AMSC	Fri, Oct 16, 1998	76.88	76.88	72.50	76.25
1614	NASDAQ	AMSC	Thu, Oct 15, 1998	67.50	75.00	63.75	75.00
1613	NASDAQ	AMSC	Wed, Oct 14, 1998	66.25	70.00	61.25	62.50
1612	NASDAQ	AMSC	Tue, Oct 13, 1998	65.00	70.00	65.00	68.75
1611	NASDAQ	AMSC	Mon, Oct 12, 1998	67.50	70.00	67.50	69.38
1610	NASDAQ	AMSC	Fri, Oct 9, 1998	66.25	70.00	62.50	67.50
1609	NASDAQ	AMSC	Thu, Oct 8, 1998	62.50	67.50	62.50	64.38
1608	NASDAQ	AMSC	Wed, Oct 7, 1998	72.50	72.50	65.63	67.50
1607	NASDAQ	AMSC	Tue, Oct 6, 1998	70.63	75.00	70.00	73.13
1606	NASDAQ	AMSC	Mon, Oct 5, 1998	72.50	73.75	70.00	71.25
1605	NASDAQ	AMSC	Fri, Oct 2, 1998	68.75	71.88	68.75	71.25
1604	NASDAQ	AMSC	Thu, Oct 1, 1998	71.25	71.25	68.13	68.75
1603	NASDAQ	AMSC	Wed, Sep 30, 1998	67.50	70.00	67.50	70.00
1602	NASDAQ	AMSC	Tue, Sep 29, 1998	71.25	71.25	68.13	68.75
1601	NASDAQ	AMSC	Mon, Sep 28, 1998	70.00	71.25	68.75	70.00
1600	NASDAQ	AMSC	Fri, Sep 25, 1998	72.50	72.50	68.75	70.63
1599	NASDAQ	AMSC	Thu, Sep 24, 1998	68.13	72.50	68.13	70.00
1598	NASDAQ	AMSC	Wed, Sep 23, 1998	68.75	70.00	67.50	70.00
1597	NASDAQ	AMSC	Tue, Sep 22, 1998	68.75	70.00	66.25	70.00
1596	NASDAQ	AMSC	Mon, Sep 21, 1998	65.00	67.50	65.00	66.88
1595	NASDAQ	AMSC	Fri, Sep 18, 1998	66.25	68.75	63.75	67.50
1594	NASDAQ	AMSC	Thu, Sep 17, 1998	68.75	68.75	63.75	65.00
1593	NASDAQ	AMSC	Wed, Sep 16, 1998	70.00	72.50	67.50	68.75
1592	NASDAQ	AMSC	Tue, Sep 15, 1998	73.13	73.13	68.75	70.00
1591	NASDAQ	AMSC	Mon, Sep 14, 1998	72.50	73.75	70.00	70.00
1590	NASDAQ	AMSC	Fri, Sep 11, 1998	67.50	70.00	67.50	68.75
1589	NASDAQ	AMSC	Thu, Sep 10, 1998	70.00	72.50	67.50	67.50
1588	NASDAQ	AMSC	Wed, Sep 9, 1998	65.63	73.75	65.63	73.75
1587	NASDAQ	AMSC	Tue, Sep 8, 1998	72.50	72.50	63.75	66.25
1586	NASDAQ	AMSC	Fri, Sep 4, 1998	71.25	71.25	66.25	70.00
1585	NASDAQ	AMSC	Thu, Sep 3, 1998	73.75	73.75	65.63	70.00
1584	NASDAQ	AMSC	Wed, Sep 2, 1998	73.13	77.50	72.50	73.75
1583	NASDAQ	AMSC	Tue, Sep 1, 1998	83.75	83.75	70.00	73.13
1582	NASDAQ	AMSC	Mon, Aug 31, 1998	91.25	91.25	85.00	85.00
1581	NASDAQ	AMSC	Fri, Aug 28, 1998	91.25	91.25	85.00	88.75
1580	NASDAQ	AMSC	Thu, Aug 27, 1998	91.88	91.88	85.00	86.25
1579	NASDAQ	AMSC	Wed, Aug 26, 1998	97.50	100.00	92.50	92.50
1578	NASDAQ	AMSC	Tue, Aug 25, 1998	92.50	102.50	92.50	98.75
1577	NASDAQ	AMSC	Mon, Aug 24, 1998	101.25	101.25	91.25	93.75
1576	NASDAQ	AMSC	Fri, Aug 21, 1998	101.25	101.25	95.00	101.25
1575	NASDAQ	AMSC	Thu, Aug 20, 1998	101.25	101.25	97.50	100.00
1574	NASDAQ	AMSC	Wed, Aug 19, 1998	100.00	101.25	98.75	100.00
1573	NASDAQ	AMSC	Tue, Aug 18, 1998	101.25	102.50	98.75	99.38
1572	NASDAQ	AMSC	Mon, Aug 17, 1998	101.25	101.25	98.13	100.00
1571	NASDAQ	AMSC	Fri, Aug 14, 1998	103.13	103.13	95.00	100.00
1570	NASDAQ	AMSC	Thu, Aug 13, 1998	101.88	103.75	100.00	100.00
1569	NASDAQ	AMSC	Wed, Aug 12, 1998	103.75	103.75	100.00	100.00
1568	NASDAQ	AMSC	Tue, Aug 11, 1998	100.00	103.75	100.00	102.50
1567	NASDAQ	AMSC	Mon, Aug 10, 1998	103.75	106.25	101.25	105.00
1566	NASDAQ	AMSC	Fri, Aug 7, 1998	100.00	105.00	98.75	105.00
1565	NASDAQ	AMSC	Thu, Aug 6, 1998	90.63	98.75	88.75	98.75
1564	NASDAQ	AMSC	Wed, Aug 5, 1998	96.25	98.75	85.00	88.75
1563	NASDAQ	AMSC	Tue, Aug 4, 1998	98.75	98.75	95.00	98.13
1562	NASDAQ	AMSC	Mon, Aug 3, 1998	101.25	101.25	95.00	95.00
1561	NASDAQ	AMSC	Fri, Jul 31, 1998	100.00	103.75	97.50	100.63
1560	NASDAQ	AMSC	Thu, Jul 30, 1998	105.00	107.50	102.50	103.13
1559	NASDAQ	AMSC	Wed, Jul 29, 1998	113.75	115.00	97.50	105.00
1558	NASDAQ	AMSC	Tue, Jul 28, 1998	119.38	119.38	113.13	115.00
1557	NASDAQ	AMSC	Mon, Jul 27, 1998	117.50	120.00	116.25	116.25
1556	NASDAQ	AMSC	Fri, Jul 24, 1998	115.63	120.63	115.00	120.00
1555	NASDAQ	AMSC	Thu, Jul 23, 1998	120.00	120.00	115.63	115.63
1554	NASDAQ	AMSC	Wed, Jul 22, 1998	123.75	126.25	120.00	120.00
1553	NASDAQ	AMSC	Tue, Jul 21, 1998	132.50	132.50	125.00	125.00
1552	NASDAQ	AMSC	Mon, Jul 20, 1998	132.50	136.25	130.00	130.00
1551	NASDAQ	AMSC	Fri, Jul 17, 1998	133.13	136.25	131.25	136.25
1550	NASDAQ	AMSC	Thu, Jul 16, 1998	131.25	133.75	130.00	131.25
1549	NASDAQ	AMSC	Wed, Jul 15, 1998	130.00	131.25	127.50	130.00
1548	NASDAQ	AMSC	Tue, Jul 14, 1998	120.00	131.25	118.75	128.75
1547	NASDAQ	AMSC	Mon, Jul 13, 1998	118.75	120.00	118.75	118.75
1546	NASDAQ	AMSC	Fri, Jul 10, 1998	118.75	120.00	118.75	119.38
1545	NASDAQ	AMSC	Thu, Jul 9, 1998	120.00	120.00	118.75	120.00
1544	NASDAQ	AMSC	Wed, Jul 8, 1998	118.75	121.25	118.75	118.75
1543	NASDAQ	AMSC	Tue, Jul 7, 1998	121.25	121.25	118.75	120.00
1542	NASDAQ	AMSC	Mon, Jul 6, 1998	118.75	121.25	118.75	120.63
1541	NASDAQ	AMSC	Thu, Jul 2, 1998	120.00	120.00	118.75	118.75
1540	NASDAQ	AMSC	Wed, Jul 1, 1998	118.75	120.00	118.75	119.38
1539	NASDAQ	AMSC	Tue, Jun 30, 1998	117.50	120.00	117.50	120.00
1538	NASDAQ	AMSC	Mon, Jun 29, 1998	120.00	120.00	118.75	118.75
1537	NASDAQ	AMSC	Fri, Jun 26, 1998	121.25	121.25	117.50	120.00
1536	NASDAQ	AMSC	Thu, Jun 25, 1998	118.75	122.50	118.75	118.75
1535	NASDAQ	AMSC	Wed, Jun 24, 1998	118.75	121.25	118.75	118.75
1534	NASDAQ	AMSC	Tue, Jun 23, 1998	117.50	120.00	117.50	118.75
1533	NASDAQ	AMSC	Mon, Jun 22, 1998	120.00	120.00	117.50	117.50
1532	NASDAQ	AMSC	Fri, Jun 19, 1998	121.25	121.25	115.00	117.50
1531	NASDAQ	AMSC	Thu, Jun 18, 1998	122.50	122.50	117.50	120.00
1530	NASDAQ	AMSC	Wed, Jun 17, 1998	118.75	122.50	118.75	120.00
1529	NASDAQ	AMSC	Tue, Jun 16, 1998	117.50	121.25	116.25	116.25
1528	NASDAQ	AMSC	Mon, Jun 15, 1998	115.00	117.50	115.00	117.50
1527	NASDAQ	AMSC	Fri, Jun 12, 1998	120.00	120.00	116.88	117.50
1526	NASDAQ	AMSC	Thu, Jun 11, 1998	120.00	120.00	116.25	117.50
1525	NASDAQ	AMSC	Wed, Jun 10, 1998	120.00	121.25	118.75	118.75
1524	NASDAQ	AMSC	Tue, Jun 9, 1998	118.75	121.25	118.75	121.25
1523	NASDAQ	AMSC	Mon, Jun 8, 1998	120.00	121.25	118.13	118.75
1522	NASDAQ	AMSC	Fri, Jun 5, 1998	125.00	127.50	118.75	120.00
1521	NASDAQ	AMSC	Thu, Jun 4, 1998	126.25	128.75	125.00	127.50
1520	NASDAQ	AMSC	Wed, Jun 3, 1998	127.50	128.13	126.25	126.25
1519	NASDAQ	AMSC	Tue, Jun 2, 1998	126.25	130.00	125.00	127.50
1518	NASDAQ	AMSC	Mon, Jun 1, 1998	123.75	127.50	123.75	123.75
1517	NASDAQ	AMSC	Fri, May 29, 1998	135.00	135.00	122.50	125.63
1516	NASDAQ	AMSC	Thu, May 28, 1998	132.50	136.25	131.25	131.25
1515	NASDAQ	AMSC	Wed, May 27, 1998	128.75	132.50	126.25	130.63
1514	NASDAQ	AMSC	Tue, May 26, 1998	135.00	138.75	130.00	130.00
1513	NASDAQ	AMSC	Fri, May 22, 1998	125.00	136.25	125.00	132.50
1512	NASDAQ	AMSC	Thu, May 21, 1998	123.75	123.75	117.50	122.50
1511	NASDAQ	AMSC	Wed, May 20, 1998	121.25	123.75	120.00	122.50
1510	NASDAQ	AMSC	Tue, May 19, 1998	120.00	121.25	120.00	120.00
1509	NASDAQ	AMSC	Mon, May 18, 1998	118.75	122.50	118.75	118.75
1508	NASDAQ	AMSC	Fri, May 15, 1998	127.50	127.50	118.75	118.75
1507	NASDAQ	AMSC	Thu, May 14, 1998	127.50	127.50	125.00	125.63
1506	NASDAQ	AMSC	Wed, May 13, 1998	125.00	128.75	123.75	125.63
1505	NASDAQ	AMSC	Tue, May 12, 1998	127.50	127.50	123.75	123.75
1504	NASDAQ	AMSC	Mon, May 11, 1998	126.25	130.00	123.75	127.50
1503	NASDAQ	AMSC	Fri, May 8, 1998	125.00	130.00	125.00	126.25
1502	NASDAQ	AMSC	Thu, May 7, 1998	133.75	133.75	123.75	123.75
1501	NASDAQ	AMSC	Wed, May 6, 1998	133.75	136.25	130.00	130.00
1500	NASDAQ	AMSC	Tue, May 5, 1998	135.00	135.00	132.50	133.75
1499	NASDAQ	AMSC	Mon, May 4, 1998	136.25	136.25	132.50	132.50
1498	NASDAQ	AMSC	Fri, May 1, 1998	135.00	137.50	133.75	135.00
1497	NASDAQ	AMSC	Thu, Apr 30, 1998	135.00	138.75	132.50	134.38
1496	NASDAQ	AMSC	Wed, Apr 29, 1998	128.75	135.00	126.25	131.25
1495	NASDAQ	AMSC	Tue, Apr 28, 1998	126.25	132.50	123.75	125.63
1494	NASDAQ	AMSC	Mon, Apr 27, 1998	125.00	125.00	119.38	123.13
1493	NASDAQ	AMSC	Fri, Apr 24, 1998	127.50	129.38	124.38	127.50
1492	NASDAQ	AMSC	Thu, Apr 23, 1998	131.25	135.00	123.75	128.75
1491	NASDAQ	AMSC	Wed, Apr 22, 1998	138.75	139.38	123.75	131.25
1490	NASDAQ	AMSC	Tue, Apr 21, 1998	143.75	143.75	138.75	138.75
1489	NASDAQ	AMSC	Mon, Apr 20, 1998	145.00	145.63	141.25	142.50
1488	NASDAQ	AMSC	Fri, Apr 17, 1998	140.00	145.63	140.00	143.75
1487	NASDAQ	AMSC	Thu, Apr 16, 1998	148.75	148.75	142.50	145.00
1486	NASDAQ	AMSC	Wed, Apr 15, 1998	153.75	157.50	146.25	148.75
1485	NASDAQ	AMSC	Tue, Apr 14, 1998	161.25	161.25	153.75	153.75
1484	NASDAQ	AMSC	Mon, Apr 13, 1998	161.25	163.75	158.75	161.25
1483	NASDAQ	AMSC	Thu, Apr 9, 1998	167.50	167.50	160.00	161.25
1482	NASDAQ	AMSC	Wed, Apr 8, 1998	166.25	168.75	166.25	168.13
1481	NASDAQ	AMSC	Tue, Apr 7, 1998	166.25	171.25	166.25	168.75
1480	NASDAQ	AMSC	Mon, Apr 6, 1998	181.25	182.50	167.50	168.75
1479	NASDAQ	AMSC	Fri, Apr 3, 1998	166.25	182.50	165.00	180.00
1478	NASDAQ	AMSC	Thu, Apr 2, 1998	150.00	166.25	148.75	165.00
1477	NASDAQ	AMSC	Wed, Apr 1, 1998	137.50	149.38	136.88	148.75
1476	NASDAQ	AMSC	Tue, Mar 31, 1998	136.25	138.75	135.63	138.75
1475	NASDAQ	AMSC	Mon, Mar 30, 1998	136.25	137.50	133.13	136.25
1474	NASDAQ	AMSC	Fri, Mar 27, 1998	138.75	140.00	135.00	137.50
1473	NASDAQ	AMSC	Thu, Mar 26, 1998	140.63	140.63	136.25	140.00
1472	NASDAQ	AMSC	Wed, Mar 25, 1998	143.75	143.75	137.50	140.63
1471	NASDAQ	AMSC	Tue, Mar 24, 1998	144.38	145.00	142.50	144.38
1470	NASDAQ	AMSC	Mon, Mar 23, 1998	143.75	146.25	141.25	141.88
1469	NASDAQ	AMSC	Fri, Mar 20, 1998	147.50	147.50	143.75	144.38
1468	NASDAQ	AMSC	Thu, Mar 19, 1998	146.88	146.88	145.00	145.00
1467	NASDAQ	AMSC	Wed, Mar 18, 1998	146.25	146.88	145.00	146.88
1466	NASDAQ	AMSC	Tue, Mar 17, 1998	143.75	147.50	142.50	146.25
1465	NASDAQ	AMSC	Mon, Mar 16, 1998	145.00	146.88	143.75	146.25
1464	NASDAQ	AMSC	Fri, Mar 13, 1998	142.50	145.00	141.25	145.00
1463	NASDAQ	AMSC	Thu, Mar 12, 1998	140.00	142.50	140.00	142.50
1462	NASDAQ	AMSC	Wed, Mar 11, 1998	142.50	142.50	137.50	140.00
1461	NASDAQ	AMSC	Tue, Mar 10, 1998	146.25	146.25	140.00	140.00
1460	NASDAQ	AMSC	Mon, Mar 9, 1998	146.25	146.25	142.50	143.75
1459	NASDAQ	AMSC	Fri, Mar 6, 1998	142.50	146.25	142.50	145.00
1458	NASDAQ	AMSC	Thu, Mar 5, 1998	137.50	142.50	136.25	141.25
1457	NASDAQ	AMSC	Wed, Mar 4, 1998	141.25	141.25	138.75	139.38
1456	NASDAQ	AMSC	Tue, Mar 3, 1998	150.00	150.00	138.75	140.63
1455	NASDAQ	AMSC	Mon, Mar 2, 1998	146.25	151.25	143.75	150.00
1454	NASDAQ	AMSC	Fri, Feb 27, 1998	142.50	150.00	140.00	145.00
1453	NASDAQ	AMSC	Thu, Feb 26, 1998	128.75	143.75	128.75	140.00
1452	NASDAQ	AMSC	Wed, Feb 25, 1998	118.75	128.75	118.75	128.75
1451	NASDAQ	AMSC	Tue, Feb 24, 1998	120.63	121.25	115.00	118.75
1450	NASDAQ	AMSC	Mon, Feb 23, 1998	121.25	121.25	118.75	121.25
1449	NASDAQ	AMSC	Fri, Feb 20, 1998	118.75	121.25	116.25	120.63
1448	NASDAQ	AMSC	Thu, Feb 19, 1998	112.50	118.75	112.50	118.75
1447	NASDAQ	AMSC	Wed, Feb 18, 1998	112.50	112.50	106.25	112.50
1446	NASDAQ	AMSC	Tue, Feb 17, 1998	112.50	112.50	111.25	112.50
1445	NASDAQ	AMSC	Fri, Feb 13, 1998	112.50	112.50	110.00	112.50
1444	NASDAQ	AMSC	Thu, Feb 12, 1998	113.13	113.13	110.00	111.88
1443	NASDAQ	AMSC	Wed, Feb 11, 1998	115.63	115.63	111.25	112.50
1442	NASDAQ	AMSC	Tue, Feb 10, 1998	120.00	122.50	113.13	115.00
1441	NASDAQ	AMSC	Mon, Feb 9, 1998	122.50	122.50	120.00	121.25
1440	NASDAQ	AMSC	Fri, Feb 6, 1998	123.75	123.75	120.00	122.50
1439	NASDAQ	AMSC	Thu, Feb 5, 1998	125.00	125.63	120.63	123.75
1438	NASDAQ	AMSC	Wed, Feb 4, 1998	121.25	126.25	117.50	123.75
1437	NASDAQ	AMSC	Tue, Feb 3, 1998	105.00	120.00	105.00	117.50
1436	NASDAQ	AMSC	Mon, Feb 2, 1998	95.00	101.25	95.00	100.00
1435	NASDAQ	AMSC	Fri, Jan 30, 1998	93.13	93.13	91.25	91.25
1434	NASDAQ	AMSC	Thu, Jan 29, 1998	93.75	93.75	91.25	93.13
1433	NASDAQ	AMSC	Wed, Jan 28, 1998	93.13	93.13	91.25	91.25
1432	NASDAQ	AMSC	Tue, Jan 27, 1998	91.25	93.75	91.25	92.50
1431	NASDAQ	AMSC	Mon, Jan 26, 1998	92.50	93.75	91.25	91.25
1430	NASDAQ	AMSC	Fri, Jan 23, 1998	97.50	97.50	91.25	93.13
1429	NASDAQ	AMSC	Thu, Jan 22, 1998	97.50	97.50	95.00	97.50
1428	NASDAQ	AMSC	Wed, Jan 21, 1998	98.75	98.75	96.25	96.25
1427	NASDAQ	AMSC	Tue, Jan 20, 1998	100.00	100.00	96.25	98.75
1426	NASDAQ	AMSC	Fri, Jan 16, 1998	98.75	101.25	97.50	100.00
1425	NASDAQ	AMSC	Thu, Jan 15, 1998	93.75	98.75	93.75	98.13
1424	NASDAQ	AMSC	Wed, Jan 14, 1998	93.75	96.25	91.88	95.00
1423	NASDAQ	AMSC	Tue, Jan 13, 1998	91.25	94.38	91.25	92.50
1422	NASDAQ	AMSC	Mon, Jan 12, 1998	90.00	93.75	90.00	93.13
1421	NASDAQ	AMSC	Fri, Jan 9, 1998	92.50	95.00	92.50	93.13
1420	NASDAQ	AMSC	Thu, Jan 8, 1998	85.00	92.50	85.00	92.50
1419	NASDAQ	AMSC	Wed, Jan 7, 1998	85.00	86.25	85.00	86.25
1418	NASDAQ	AMSC	Tue, Jan 6, 1998	86.25	86.25	85.00	85.00
1417	NASDAQ	AMSC	Mon, Jan 5, 1998	86.25	86.25	85.00	85.63
1416	NASDAQ	AMSC	Fri, Jan 2, 1998	85.00	86.25	85.00	85.00
1415	NASDAQ	AMSC	Wed, Dec 31, 1997	85.63	86.25	83.75	85.00
1414	NASDAQ	AMSC	Tue, Dec 30, 1997	88.13	88.13	82.50	83.75
1413	NASDAQ	AMSC	Mon, Dec 29, 1997	88.75	88.75	85.00	87.50
1412	NASDAQ	AMSC	Fri, Dec 26, 1997	87.50	88.75	87.50	87.50
1411	NASDAQ	AMSC	Wed, Dec 24, 1997	88.75	88.75	87.50	88.75
1410	NASDAQ	AMSC	Tue, Dec 23, 1997	91.25	91.25	86.25	86.25
1409	NASDAQ	AMSC	Mon, Dec 22, 1997	90.00	91.25	87.50	87.50
1408	NASDAQ	AMSC	Fri, Dec 19, 1997	90.00	92.50	87.50	88.13
1407	NASDAQ	AMSC	Thu, Dec 18, 1997	95.00	95.00	82.50	90.00
1406	NASDAQ	AMSC	Wed, Dec 17, 1997	95.00	96.25	92.50	93.75
1405	NASDAQ	AMSC	Tue, Dec 16, 1997	97.50	97.50	95.00	97.50
1404	NASDAQ	AMSC	Mon, Dec 15, 1997	100.00	100.00	97.50	97.50
1403	NASDAQ	AMSC	Fri, Dec 12, 1997	98.75	98.75	96.25	96.25
1402	NASDAQ	AMSC	Thu, Dec 11, 1997	98.75	98.75	96.25	98.13
1401	NASDAQ	AMSC	Wed, Dec 10, 1997	100.00	102.50	97.50	98.75
1400	NASDAQ	AMSC	Tue, Dec 9, 1997	103.75	103.75	98.75	100.00
1399	NASDAQ	AMSC	Mon, Dec 8, 1997	100.00	103.75	100.00	103.75
1398	NASDAQ	AMSC	Fri, Dec 5, 1997	100.00	101.25	100.00	100.00
1397	NASDAQ	AMSC	Thu, Dec 4, 1997	101.25	102.50	100.00	100.00
1396	NASDAQ	AMSC	Wed, Dec 3, 1997	102.50	102.50	97.50	98.75
1395	NASDAQ	AMSC	Tue, Dec 2, 1997	102.50	105.00	100.00	101.25
1394	NASDAQ	AMSC	Mon, Dec 1, 1997	106.25	106.25	103.75	103.75
1393	NASDAQ	AMSC	Fri, Nov 28, 1997	103.75	103.75	103.75	103.75
1392	NASDAQ	AMSC	Wed, Nov 26, 1997	103.75	105.00	103.75	103.75
1391	NASDAQ	AMSC	Tue, Nov 25, 1997	108.75	111.25	102.50	106.25
1390	NASDAQ	AMSC	Mon, Nov 24, 1997	111.25	111.25	108.75	108.75
1389	NASDAQ	AMSC	Fri, Nov 21, 1997	113.13	113.13	110.00	110.00
1388	NASDAQ	AMSC	Thu, Nov 20, 1997	110.00	112.50	110.00	112.50
1387	NASDAQ	AMSC	Wed, Nov 19, 1997	110.00	110.00	107.50	110.00
1386	NASDAQ	AMSC	Tue, Nov 18, 1997	110.00	112.50	107.50	108.75
1385	NASDAQ	AMSC	Mon, Nov 17, 1997	110.00	110.00	106.25	106.25
1384	NASDAQ	AMSC	Fri, Nov 14, 1997	101.25	108.75	101.25	108.75
1383	NASDAQ	AMSC	Thu, Nov 13, 1997	103.75	105.00	100.00	101.25
1382	NASDAQ	AMSC	Wed, Nov 12, 1997	103.75	107.50	103.75	103.75
1381	NASDAQ	AMSC	Tue, Nov 11, 1997	107.50	107.50	105.00	106.88
1380	NASDAQ	AMSC	Mon, Nov 10, 1997	107.50	107.50	106.25	106.25
1379	NASDAQ	AMSC	Fri, Nov 7, 1997	106.25	106.25	105.00	105.00
1378	NASDAQ	AMSC	Thu, Nov 6, 1997	111.25	111.25	105.00	107.50
1377	NASDAQ	AMSC	Wed, Nov 5, 1997	108.75	110.00	108.13	108.75
1376	NASDAQ	AMSC	Tue, Nov 4, 1997	108.75	108.75	103.75	106.25
1375	NASDAQ	AMSC	Mon, Nov 3, 1997	113.75	113.75	107.50	108.75
1374	NASDAQ	AMSC	Fri, Oct 31, 1997	111.25	113.75	108.75	110.00
1373	NASDAQ	AMSC	Thu, Oct 30, 1997	117.50	117.50	108.75	110.00
1372	NASDAQ	AMSC	Wed, Oct 29, 1997	122.50	122.50	116.25	118.75
1371	NASDAQ	AMSC	Tue, Oct 28, 1997	106.25	117.50	106.25	115.00
1370	NASDAQ	AMSC	Mon, Oct 27, 1997	126.25	127.50	112.50	112.50
1369	NASDAQ	AMSC	Fri, Oct 24, 1997	122.50	128.75	122.50	127.50
1368	NASDAQ	AMSC	Thu, Oct 23, 1997	121.25	125.00	121.25	123.75
1367	NASDAQ	AMSC	Wed, Oct 22, 1997	126.25	127.50	123.75	125.00
1366	NASDAQ	AMSC	Tue, Oct 21, 1997	125.00	125.00	123.75	125.00
1365	NASDAQ	AMSC	Mon, Oct 20, 1997	125.00	126.25	125.00	125.00
1364	NASDAQ	AMSC	Fri, Oct 17, 1997	126.88	127.50	123.75	123.75
1363	NASDAQ	AMSC	Thu, Oct 16, 1997	130.00	130.00	128.13	128.13
1362	NASDAQ	AMSC	Wed, Oct 15, 1997	128.75	130.00	128.13	128.75
1361	NASDAQ	AMSC	Tue, Oct 14, 1997	128.75	130.00	128.13	130.00
1360	NASDAQ	AMSC	Mon, Oct 13, 1997	128.75	131.25	128.75	128.75
1359	NASDAQ	AMSC	Fri, Oct 10, 1997	130.00	133.75	128.75	130.00
1358	NASDAQ	AMSC	Thu, Oct 9, 1997	132.50	136.25	131.25	131.25
1357	NASDAQ	AMSC	Wed, Oct 8, 1997	132.50	137.50	132.50	137.50
1356	NASDAQ	AMSC	Tue, Oct 7, 1997	136.25	136.25	134.38	135.00
1355	NASDAQ	AMSC	Mon, Oct 6, 1997	136.25	137.50	133.13	133.13
1354	NASDAQ	AMSC	Fri, Oct 3, 1997	140.00	140.00	135.00	135.00
1353	NASDAQ	AMSC	Thu, Oct 2, 1997	142.50	145.00	136.25	136.25
1352	NASDAQ	AMSC	Wed, Oct 1, 1997	130.00	147.50	130.00	141.25
1351	NASDAQ	AMSC	Tue, Sep 30, 1997	118.75	133.75	118.75	133.75
1350	NASDAQ	AMSC	Mon, Sep 29, 1997	120.00	120.00	116.25	118.75
1349	NASDAQ	AMSC	Fri, Sep 26, 1997	116.25	120.00	116.25	117.50
1348	NASDAQ	AMSC	Thu, Sep 25, 1997	120.00	121.25	118.75	120.00
1347	NASDAQ	AMSC	Wed, Sep 24, 1997	116.88	121.25	116.88	118.75
1346	NASDAQ	AMSC	Tue, Sep 23, 1997	118.75	120.00	116.25	117.50
1345	NASDAQ	AMSC	Mon, Sep 22, 1997	120.00	121.25	116.25	118.75
1344	NASDAQ	AMSC	Fri, Sep 19, 1997	120.00	122.50	116.25	117.50
1343	NASDAQ	AMSC	Thu, Sep 18, 1997	128.44	128.75	120.00	120.63
1342	NASDAQ	AMSC	Wed, Sep 17, 1997	123.75	130.00	120.00	128.75
1341	NASDAQ	AMSC	Tue, Sep 16, 1997	96.25	122.50	96.25	122.50
1340	NASDAQ	AMSC	Mon, Sep 15, 1997	93.75	96.25	90.00	96.25
1339	NASDAQ	AMSC	Fri, Sep 12, 1997	98.75	98.75	95.00	97.50
1338	NASDAQ	AMSC	Thu, Sep 11, 1997	102.50	102.50	96.25	98.75
1337	NASDAQ	AMSC	Wed, Sep 10, 1997	90.00	103.75	88.75	102.50
1336	NASDAQ	AMSC	Tue, Sep 9, 1997	88.75	88.75	86.25	88.75
1335	NASDAQ	AMSC	Mon, Sep 8, 1997	86.25	87.50	85.00	86.25
1334	NASDAQ	AMSC	Fri, Sep 5, 1997	87.50	87.50	86.25	87.50
1333	NASDAQ	AMSC	Thu, Sep 4, 1997	86.25	87.50	86.25	87.50
1332	NASDAQ	AMSC	Wed, Sep 3, 1997	87.50	87.50	86.25	87.50
1331	NASDAQ	AMSC	Tue, Sep 2, 1997	87.50	88.75	86.25	86.25
1330	NASDAQ	AMSC	Fri, Aug 29, 1997	87.50	87.50	86.25	86.25
1329	NASDAQ	AMSC	Thu, Aug 28, 1997	87.50	87.50	85.00	87.50
1328	NASDAQ	AMSC	Wed, Aug 27, 1997	86.25	90.00	86.25	87.50
1327	NASDAQ	AMSC	Tue, Aug 26, 1997	88.75	90.00	86.25	90.00
1326	NASDAQ	AMSC	Mon, Aug 25, 1997	87.50	90.00	87.50	87.50
1325	NASDAQ	AMSC	Fri, Aug 22, 1997	88.75	90.00	87.50	87.50
1324	NASDAQ	AMSC	Thu, Aug 21, 1997	93.75	93.75	87.50	90.00
1323	NASDAQ	AMSC	Wed, Aug 20, 1997	92.50	95.00	91.25	92.50
1322	NASDAQ	AMSC	Tue, Aug 19, 1997	95.00	95.00	92.50	95.00
1321	NASDAQ	AMSC	Mon, Aug 18, 1997	93.75	95.00	90.00	92.50
1320	NASDAQ	AMSC	Fri, Aug 15, 1997	96.25	96.25	96.25	96.25
1319	NASDAQ	AMSC	Thu, Aug 14, 1997	91.25	96.25	91.25	96.25
1318	NASDAQ	AMSC	Wed, Aug 13, 1997	95.00	95.00	90.00	93.13
1317	NASDAQ	AMSC	Tue, Aug 12, 1997	92.50	95.00	91.25	93.75
1316	NASDAQ	AMSC	Mon, Aug 11, 1997	93.75	96.25	93.75	96.25
1315	NASDAQ	AMSC	Fri, Aug 8, 1997	101.25	101.25	92.50	93.75
1314	NASDAQ	AMSC	Thu, Aug 7, 1997	98.75	101.25	98.75	101.25
1313	NASDAQ	AMSC	Wed, Aug 6, 1997	100.94	101.25	98.75	98.75
1312	NASDAQ	AMSC	Tue, Aug 5, 1997	100.00	101.25	98.75	101.25
1311	NASDAQ	AMSC	Mon, Aug 4, 1997	101.25	101.25	96.25	96.25
1310	NASDAQ	AMSC	Fri, Aug 1, 1997	102.50	102.50	97.50	97.50
1309	NASDAQ	AMSC	Thu, Jul 31, 1997	102.50	102.50	100.00	102.50
1308	NASDAQ	AMSC	Wed, Jul 30, 1997	102.50	102.50	102.50	102.50
1307	NASDAQ	AMSC	Tue, Jul 29, 1997	100.00	102.50	100.00	102.50
1306	NASDAQ	AMSC	Mon, Jul 28, 1997	102.50	102.50	100.00	100.00
1305	NASDAQ	AMSC	Fri, Jul 25, 1997	100.00	103.75	100.00	100.00
1304	NASDAQ	AMSC	Thu, Jul 24, 1997	101.25	102.50	100.00	100.00
1303	NASDAQ	AMSC	Wed, Jul 23, 1997	100.00	102.50	100.00	102.50
1302	NASDAQ	AMSC	Tue, Jul 22, 1997	102.19	102.50	100.00	101.25
1301	NASDAQ	AMSC	Mon, Jul 21, 1997	100.00	102.50	98.75	100.63
1300	NASDAQ	AMSC	Fri, Jul 18, 1997	103.75	103.75	103.75	103.75
1299	NASDAQ	AMSC	Thu, Jul 17, 1997	101.25	103.75	100.00	103.75
1298	NASDAQ	AMSC	Wed, Jul 16, 1997	102.50	103.75	101.25	101.25
1297	NASDAQ	AMSC	Tue, Jul 15, 1997	103.75	107.50	100.00	105.00
1296	NASDAQ	AMSC	Mon, Jul 14, 1997	106.25	108.75	106.25	106.25
1295	NASDAQ	AMSC	Fri, Jul 11, 1997	108.75	108.75	106.25	108.75
1294	NASDAQ	AMSC	Thu, Jul 10, 1997	108.75	108.75	105.00	105.00
1293	NASDAQ	AMSC	Wed, Jul 9, 1997	111.25	111.25	106.25	110.00
1292	NASDAQ	AMSC	Tue, Jul 8, 1997	118.75	118.75	111.25	111.25
1291	NASDAQ	AMSC	Mon, Jul 7, 1997	118.75	118.75	116.25	116.25
1290	NASDAQ	AMSC	Thu, Jul 3, 1997	118.75	118.75	116.25	118.75
1289	NASDAQ	AMSC	Wed, Jul 2, 1997	115.00	117.50	115.00	116.25
1288	NASDAQ	AMSC	Tue, Jul 1, 1997	122.50	122.50	115.00	117.50
1287	NASDAQ	AMSC	Mon, Jun 30, 1997	120.00	122.50	115.00	122.50
1286	NASDAQ	AMSC	Fri, Jun 27, 1997	116.25	121.25	113.75	120.00
1285	NASDAQ	AMSC	Thu, Jun 26, 1997	101.25	120.00	101.25	113.75
1284	NASDAQ	AMSC	Wed, Jun 25, 1997	101.25	103.75	97.50	103.75
1283	NASDAQ	AMSC	Tue, Jun 24, 1997	86.88	101.25	86.88	98.75
1282	NASDAQ	AMSC	Mon, Jun 23, 1997	86.25	88.75	86.25	88.13
1281	NASDAQ	AMSC	Fri, Jun 20, 1997	86.25	88.75	86.25	86.25
1280	NASDAQ	AMSC	Thu, Jun 19, 1997	87.50	87.50	86.25	87.50
1279	NASDAQ	AMSC	Wed, Jun 18, 1997	86.25	88.13	86.25	86.25
1278	NASDAQ	AMSC	Tue, Jun 17, 1997	87.50	87.50	86.25	87.50
1277	NASDAQ	AMSC	Mon, Jun 16, 1997	86.25	87.50	86.25	87.50
1276	NASDAQ	AMSC	Fri, Jun 13, 1997	88.75	88.75	86.25	86.25
1275	NASDAQ	AMSC	Thu, Jun 12, 1997	85.00	87.50	85.00	87.50
1274	NASDAQ	AMSC	Wed, Jun 11, 1997	85.00	86.25	85.00	86.25
1273	NASDAQ	AMSC	Tue, Jun 10, 1997	85.00	86.25	83.75	86.25
1272	NASDAQ	AMSC	Mon, Jun 9, 1997	87.50	88.75	85.00	86.88
1271	NASDAQ	AMSC	Fri, Jun 6, 1997	87.50	88.75	87.50	88.75
1270	NASDAQ	AMSC	Thu, Jun 5, 1997	87.50	88.75	85.00	87.50
1269	NASDAQ	AMSC	Wed, Jun 4, 1997	83.75	86.25	83.75	86.25
1268	NASDAQ	AMSC	Tue, Jun 3, 1997	83.75	85.00	83.75	83.75
1267	NASDAQ	AMSC	Mon, Jun 2, 1997	85.00	85.00	83.75	85.00
1266	NASDAQ	AMSC	Fri, May 30, 1997	82.50	85.00	82.50	85.00
1265	NASDAQ	AMSC	Thu, May 29, 1997	85.00	85.00	82.50	82.50
1264	NASDAQ	AMSC	Wed, May 28, 1997	83.75	85.00	83.75	83.75
1263	NASDAQ	AMSC	Tue, May 27, 1997	85.00	85.00	82.50	82.50
1262	NASDAQ	AMSC	Fri, May 23, 1997	85.00	85.00	82.50	83.75
1261	NASDAQ	AMSC	Thu, May 22, 1997	83.75	86.25	82.50	83.75
1260	NASDAQ	AMSC	Wed, May 21, 1997	85.00	86.25	83.75	85.00
1259	NASDAQ	AMSC	Tue, May 20, 1997	86.25	87.50	83.75	85.00
1258	NASDAQ	AMSC	Mon, May 19, 1997	88.75	88.75	85.00	87.50
1257	NASDAQ	AMSC	Fri, May 16, 1997	87.50	88.75	86.25	88.75
1256	NASDAQ	AMSC	Thu, May 15, 1997	85.00	88.75	85.00	88.75
1255	NASDAQ	AMSC	Wed, May 14, 1997	87.50	87.50	85.00	86.25
1254	NASDAQ	AMSC	Tue, May 13, 1997	86.25	88.75	85.00	87.50
1253	NASDAQ	AMSC	Mon, May 12, 1997	90.00	90.00	85.00	86.25
1252	NASDAQ	AMSC	Fri, May 9, 1997	87.50	87.50	86.25	87.50
1251	NASDAQ	AMSC	Thu, May 8, 1997	88.75	90.00	87.50	87.50
1250	NASDAQ	AMSC	Wed, May 7, 1997	92.19	92.50	88.75	88.75
1249	NASDAQ	AMSC	Tue, May 6, 1997	95.00	95.00	90.00	90.00
1248	NASDAQ	AMSC	Mon, May 5, 1997	95.00	95.00	92.50	92.50
1247	NASDAQ	AMSC	Fri, May 2, 1997	96.25	96.25	92.50	92.50
1246	NASDAQ	AMSC	Thu, May 1, 1997	96.25	96.25	93.75	95.00
1245	NASDAQ	AMSC	Wed, Apr 30, 1997	96.25	96.25	93.75	93.75
1244	NASDAQ	AMSC	Tue, Apr 29, 1997	96.25	96.25	92.50	96.25
1243	NASDAQ	AMSC	Mon, Apr 28, 1997	88.75	96.25	88.75	96.25
1242	NASDAQ	AMSC	Fri, Apr 25, 1997	88.75	91.25	88.75	91.25
1241	NASDAQ	AMSC	Thu, Apr 24, 1997	90.00	91.25	87.50	91.25
1240	NASDAQ	AMSC	Wed, Apr 23, 1997	90.00	90.00	86.25	87.50
1239	NASDAQ	AMSC	Tue, Apr 22, 1997	87.50	90.00	86.25	90.00
1238	NASDAQ	AMSC	Mon, Apr 21, 1997	88.75	88.75	86.25	86.25
1237	NASDAQ	AMSC	Fri, Apr 18, 1997	86.25	88.75	86.25	87.50
1236	NASDAQ	AMSC	Thu, Apr 17, 1997	90.00	90.00	86.25	86.25
1235	NASDAQ	AMSC	Wed, Apr 16, 1997	90.00	90.00	86.25	88.75
1234	NASDAQ	AMSC	Tue, Apr 15, 1997	90.00	91.25	87.50	87.50
1233	NASDAQ	AMSC	Mon, Apr 14, 1997	91.25	91.25	85.00	88.75
1232	NASDAQ	AMSC	Fri, Apr 11, 1997	92.50	95.00	88.75	91.25
1231	NASDAQ	AMSC	Thu, Apr 10, 1997	100.00	100.00	92.50	96.25
1230	NASDAQ	AMSC	Wed, Apr 9, 1997	100.00	101.25	96.25	98.75
1229	NASDAQ	AMSC	Tue, Apr 8, 1997	101.25	101.25	97.50	97.50
1228	NASDAQ	AMSC	Mon, Apr 7, 1997	102.50	102.50	98.75	101.25
1227	NASDAQ	AMSC	Fri, Apr 4, 1997	101.25	101.25	98.75	100.00
1226	NASDAQ	AMSC	Thu, Apr 3, 1997	101.25	103.75	96.25	100.00
1225	NASDAQ	AMSC	Wed, Apr 2, 1997	83.75	96.25	82.50	96.25
1224	NASDAQ	AMSC	Tue, Apr 1, 1997	81.25	83.75	81.25	82.50
1223	NASDAQ	AMSC	Mon, Mar 31, 1997	85.00	85.00	81.88	83.75
1222	NASDAQ	AMSC	Thu, Mar 27, 1997	83.75	85.00	81.25	85.00
1221	NASDAQ	AMSC	Wed, Mar 26, 1997	77.50	83.75	77.50	83.75
1220	NASDAQ	AMSC	Tue, Mar 25, 1997	77.50	78.75	77.50	78.75
1219	NASDAQ	AMSC	Mon, Mar 24, 1997	80.00	81.25	77.50	80.00
1218	NASDAQ	AMSC	Fri, Mar 21, 1997	81.25	81.25	80.00	81.25
1217	NASDAQ	AMSC	Thu, Mar 20, 1997	81.25	81.25	78.75	80.63
1216	NASDAQ	AMSC	Wed, Mar 19, 1997	82.50	82.50	78.75	80.00
1215	NASDAQ	AMSC	Tue, Mar 18, 1997	81.25	83.75	81.25	82.50
1214	NASDAQ	AMSC	Mon, Mar 17, 1997	85.00	90.00	77.50	81.25
1213	NASDAQ	AMSC	Fri, Mar 14, 1997	92.50	92.50	85.00	86.25
1212	NASDAQ	AMSC	Thu, Mar 13, 1997	92.50	96.25	92.50	95.00
1211	NASDAQ	AMSC	Wed, Mar 12, 1997	95.00	98.75	93.75	97.50
1210	NASDAQ	AMSC	Tue, Mar 11, 1997	96.25	98.75	95.00	96.25
1209	NASDAQ	AMSC	Mon, Mar 10, 1997	100.00	100.00	97.50	97.50
1208	NASDAQ	AMSC	Fri, Mar 7, 1997	97.50	100.00	97.50	97.50
1207	NASDAQ	AMSC	Thu, Mar 6, 1997	97.50	98.75	97.50	97.50
1206	NASDAQ	AMSC	Wed, Mar 5, 1997	101.25	101.25	96.25	98.75
1205	NASDAQ	AMSC	Tue, Mar 4, 1997	98.75	101.25	98.75	98.75
1204	NASDAQ	AMSC	Mon, Mar 3, 1997	100.00	101.25	98.75	101.25
1203	NASDAQ	AMSC	Fri, Feb 28, 1997	98.75	101.25	98.75	98.75
1202	NASDAQ	AMSC	Thu, Feb 27, 1997	101.25	102.50	98.75	98.75
1201	NASDAQ	AMSC	Wed, Feb 26, 1997	105.00	105.00	98.75	98.75
1200	NASDAQ	AMSC	Tue, Feb 25, 1997	103.75	106.25	101.25	101.25
1199	NASDAQ	AMSC	Mon, Feb 24, 1997	111.25	111.25	103.75	106.25
1198	NASDAQ	AMSC	Fri, Feb 21, 1997	107.50	111.25	107.50	107.50
1197	NASDAQ	AMSC	Thu, Feb 20, 1997	110.00	111.25	107.50	107.50
1196	NASDAQ	AMSC	Wed, Feb 19, 1997	111.25	111.25	108.75	108.75
1195	NASDAQ	AMSC	Tue, Feb 18, 1997	110.00	111.25	110.00	111.25
1194	NASDAQ	AMSC	Fri, Feb 14, 1997	110.00	112.50	110.00	110.00
1193	NASDAQ	AMSC	Thu, Feb 13, 1997	110.00	110.00	107.50	110.00
1192	NASDAQ	AMSC	Wed, Feb 12, 1997	110.00	110.00	107.50	107.50
1191	NASDAQ	AMSC	Tue, Feb 11, 1997	107.50	110.00	107.50	108.13
1190	NASDAQ	AMSC	Mon, Feb 10, 1997	110.00	110.00	107.50	109.38
1189	NASDAQ	AMSC	Fri, Feb 7, 1997	108.75	108.75	106.25	107.50
1188	NASDAQ	AMSC	Thu, Feb 6, 1997	106.25	106.25	106.25	106.25
1187	NASDAQ	AMSC	Wed, Feb 5, 1997	108.75	108.75	106.88	108.75
1186	NASDAQ	AMSC	Tue, Feb 4, 1997	105.00	110.00	104.69	107.50
1185	NASDAQ	AMSC	Mon, Feb 3, 1997	107.50	110.00	103.75	103.75
1184	NASDAQ	AMSC	Fri, Jan 31, 1997	107.50	110.00	107.50	107.50
1183	NASDAQ	AMSC	Thu, Jan 30, 1997	110.00	110.00	107.50	108.75
1182	NASDAQ	AMSC	Wed, Jan 29, 1997	115.00	115.00	107.50	108.75
1181	NASDAQ	AMSC	Tue, Jan 28, 1997	111.25	115.00	111.25	111.25
1180	NASDAQ	AMSC	Mon, Jan 27, 1997	113.75	116.25	112.50	112.50
1179	NASDAQ	AMSC	Fri, Jan 24, 1997	112.50	115.00	112.50	115.00
1178	NASDAQ	AMSC	Thu, Jan 23, 1997	113.75	115.00	111.25	112.50
1177	NASDAQ	AMSC	Wed, Jan 22, 1997	112.50	113.75	111.25	111.25
1176	NASDAQ	AMSC	Tue, Jan 21, 1997	111.25	111.25	110.00	110.00
1175	NASDAQ	AMSC	Mon, Jan 20, 1997	111.25	111.25	108.75	111.25
1174	NASDAQ	AMSC	Fri, Jan 17, 1997	111.25	111.25	108.75	108.75
1173	NASDAQ	AMSC	Thu, Jan 16, 1997	112.50	115.00	111.25	111.25
1172	NASDAQ	AMSC	Wed, Jan 15, 1997	113.75	117.50	112.50	112.50
1171	NASDAQ	AMSC	Tue, Jan 14, 1997	117.50	117.50	113.75	113.75
1170	NASDAQ	AMSC	Mon, Jan 13, 1997	115.00	117.50	113.75	115.00
1169	NASDAQ	AMSC	Fri, Jan 10, 1997	110.00	115.00	110.00	111.25
1168	NASDAQ	AMSC	Thu, Jan 9, 1997	117.50	117.50	111.25	111.25
1167	NASDAQ	AMSC	Wed, Jan 8, 1997	107.50	120.00	107.50	117.50
1166	NASDAQ	AMSC	Tue, Jan 7, 1997	107.50	111.25	107.50	110.00
1165	NASDAQ	AMSC	Mon, Jan 6, 1997	112.50	112.50	107.50	111.25
1164	NASDAQ	AMSC	Fri, Jan 3, 1997	105.00	112.50	105.00	112.50
1163	NASDAQ	AMSC	Thu, Jan 2, 1997	106.25	106.25	102.50	102.50
1162	NASDAQ	AMSC	Tue, Dec 31, 1996	108.75	108.75	102.50	106.25
1161	NASDAQ	AMSC	Mon, Dec 30, 1996	103.75	108.75	97.50	106.25
1160	NASDAQ	AMSC	Fri, Dec 27, 1996	108.75	108.75	103.75	103.75
1159	NASDAQ	AMSC	Thu, Dec 26, 1996	106.25	110.00	106.25	106.88
1158	NASDAQ	AMSC	Tue, Dec 24, 1996	110.00	110.00	106.25	106.25
1157	NASDAQ	AMSC	Mon, Dec 23, 1996	108.75	110.00	105.00	107.50
1156	NASDAQ	AMSC	Fri, Dec 20, 1996	106.25	107.50	106.25	106.25
1155	NASDAQ	AMSC	Thu, Dec 19, 1996	110.00	110.00	106.25	106.25
1154	NASDAQ	AMSC	Wed, Dec 18, 1996	105.63	110.00	105.00	106.25
1153	NASDAQ	AMSC	Tue, Dec 17, 1996	102.50	110.00	102.50	110.00
1152	NASDAQ	AMSC	Mon, Dec 16, 1996	106.25	110.00	106.25	106.25
1151	NASDAQ	AMSC	Fri, Dec 13, 1996	106.25	110.00	106.25	106.25
1150	NASDAQ	AMSC	Thu, Dec 12, 1996	110.00	110.00	106.25	106.25
1149	NASDAQ	AMSC	Wed, Dec 11, 1996	106.25	110.00	105.00	108.75
1148	NASDAQ	AMSC	Tue, Dec 10, 1996	112.50	112.50	108.75	112.50
1147	NASDAQ	AMSC	Mon, Dec 9, 1996	107.50	112.50	107.50	107.50
1146	NASDAQ	AMSC	Fri, Dec 6, 1996	106.25	112.50	102.50	112.50
1145	NASDAQ	AMSC	Thu, Dec 5, 1996	108.75	112.50	108.75	111.25
1144	NASDAQ	AMSC	Wed, Dec 4, 1996	106.25	108.75	105.00	108.75
1143	NASDAQ	AMSC	Tue, Dec 3, 1996	106.25	108.75	100.00	108.75
1142	NASDAQ	AMSC	Mon, Dec 2, 1996	106.25	108.75	106.25	106.25
1141	NASDAQ	AMSC	Fri, Nov 29, 1996	106.25	110.00	106.25	110.00
1140	NASDAQ	AMSC	Wed, Nov 27, 1996	106.25	110.00	106.25	107.50
1139	NASDAQ	AMSC	Tue, Nov 26, 1996	110.00	110.00	106.25	107.50
1138	NASDAQ	AMSC	Mon, Nov 25, 1996	106.25	110.00	105.00	110.00
1137	NASDAQ	AMSC	Fri, Nov 22, 1996	105.00	110.00	105.00	105.00
1136	NASDAQ	AMSC	Thu, Nov 21, 1996	111.25	112.50	105.00	105.00
1135	NASDAQ	AMSC	Wed, Nov 20, 1996	111.25	115.00	111.25	111.25
1134	NASDAQ	AMSC	Tue, Nov 19, 1996	112.50	115.00	110.00	111.25
1133	NASDAQ	AMSC	Mon, Nov 18, 1996	115.00	115.00	112.50	113.75
1132	NASDAQ	AMSC	Fri, Nov 15, 1996	115.00	120.00	112.50	117.50
1131	NASDAQ	AMSC	Thu, Nov 14, 1996	115.00	120.00	115.00	117.50
1130	NASDAQ	AMSC	Wed, Nov 13, 1996	120.00	120.00	115.00	120.00
1129	NASDAQ	AMSC	Tue, Nov 12, 1996	115.00	120.00	115.00	115.00
1128	NASDAQ	AMSC	Mon, Nov 11, 1996	122.50	122.50	115.00	120.00
1127	NASDAQ	AMSC	Fri, Nov 8, 1996	122.50	122.50	120.00	121.25
1126	NASDAQ	AMSC	Thu, Nov 7, 1996	120.00	125.00	117.50	120.00
1125	NASDAQ	AMSC	Wed, Nov 6, 1996	125.00	125.00	120.00	122.50
1124	NASDAQ	AMSC	Tue, Nov 5, 1996	125.00	127.50	120.00	120.00
1123	NASDAQ	AMSC	Mon, Nov 4, 1996	127.50	127.50	122.50	122.50
1122	NASDAQ	AMSC	Fri, Nov 1, 1996	127.50	127.50	122.50	122.50
1121	NASDAQ	AMSC	Thu, Oct 31, 1996	127.50	127.50	123.75	123.75
1120	NASDAQ	AMSC	Wed, Oct 30, 1996	127.50	127.50	122.50	127.50
1119	NASDAQ	AMSC	Tue, Oct 29, 1996	128.75	128.75	125.00	127.50
1118	NASDAQ	AMSC	Mon, Oct 28, 1996	130.00	130.00	127.50	130.00
1117	NASDAQ	AMSC	Fri, Oct 25, 1996	130.00	130.00	128.75	130.00
1116	NASDAQ	AMSC	Thu, Oct 24, 1996	130.00	130.00	127.50	128.75
1115	NASDAQ	AMSC	Wed, Oct 23, 1996	125.00	130.00	125.00	130.00
1114	NASDAQ	AMSC	Tue, Oct 22, 1996	130.00	130.00	125.00	125.00
1113	NASDAQ	AMSC	Mon, Oct 21, 1996	127.50	130.00	127.50	130.00
1112	NASDAQ	AMSC	Fri, Oct 18, 1996	130.00	130.00	127.50	130.00
1111	NASDAQ	AMSC	Thu, Oct 17, 1996	127.50	130.00	127.50	130.00
1110	NASDAQ	AMSC	Wed, Oct 16, 1996	128.75	130.00	125.00	127.50
1109	NASDAQ	AMSC	Tue, Oct 15, 1996	135.00	135.00	127.50	130.00
1108	NASDAQ	AMSC	Mon, Oct 14, 1996	130.00	133.75	130.00	133.75
1107	NASDAQ	AMSC	Fri, Oct 11, 1996	135.00	135.00	135.00	135.00
1106	NASDAQ	AMSC	Thu, Oct 10, 1996	142.50	142.50	135.00	135.00
1105	NASDAQ	AMSC	Wed, Oct 9, 1996	145.00	147.50	140.00	140.00
1104	NASDAQ	AMSC	Tue, Oct 8, 1996	145.00	148.75	145.00	145.00
1103	NASDAQ	AMSC	Mon, Oct 7, 1996	150.00	150.00	145.00	145.00
1102	NASDAQ	AMSC	Fri, Oct 4, 1996	147.50	150.00	145.00	150.00
1101	NASDAQ	AMSC	Thu, Oct 3, 1996	152.50	152.50	147.50	150.00
1100	NASDAQ	AMSC	Wed, Oct 2, 1996	147.50	152.50	145.00	151.25
1099	NASDAQ	AMSC	Tue, Oct 1, 1996	148.75	148.75	145.00	147.50
1098	NASDAQ	AMSC	Mon, Sep 30, 1996	147.50	150.00	145.00	145.00
1097	NASDAQ	AMSC	Fri, Sep 27, 1996	145.00	145.00	140.00	141.25
1096	NASDAQ	AMSC	Thu, Sep 26, 1996	142.50	145.00	140.00	140.00
1095	NASDAQ	AMSC	Wed, Sep 25, 1996	140.00	140.00	136.25	137.50
1094	NASDAQ	AMSC	Tue, Sep 24, 1996	135.00	140.00	135.00	137.50
1093	NASDAQ	AMSC	Mon, Sep 23, 1996	135.00	137.50	133.75	137.50
1092	NASDAQ	AMSC	Fri, Sep 20, 1996	137.50	142.50	137.50	137.50
1091	NASDAQ	AMSC	Thu, Sep 19, 1996	141.25	143.75	140.00	140.00
1090	NASDAQ	AMSC	Wed, Sep 18, 1996	145.00	145.00	141.25	141.25
1089	NASDAQ	AMSC	Tue, Sep 17, 1996	142.50	142.50	141.25	141.25
1088	NASDAQ	AMSC	Mon, Sep 16, 1996	140.00	147.50	137.50	147.50
1087	NASDAQ	AMSC	Fri, Sep 13, 1996	140.00	140.00	137.50	140.00
1086	NASDAQ	AMSC	Thu, Sep 12, 1996	135.00	135.00	135.00	135.00
1085	NASDAQ	AMSC	Wed, Sep 11, 1996	135.00	135.00	135.00	135.00
1084	NASDAQ	AMSC	Tue, Sep 10, 1996	135.00	140.00	135.00	137.50
1083	NASDAQ	AMSC	Mon, Sep 9, 1996	133.75	140.00	133.75	140.00
1082	NASDAQ	AMSC	Fri, Sep 6, 1996	135.00	137.50	133.75	133.75
1081	NASDAQ	AMSC	Thu, Sep 5, 1996	145.00	145.00	135.00	135.00
1080	NASDAQ	AMSC	Wed, Sep 4, 1996	143.75	145.00	143.75	145.00
1079	NASDAQ	AMSC	Tue, Sep 3, 1996	147.50	150.00	142.50	146.25
1078	NASDAQ	AMSC	Fri, Aug 30, 1996	147.50	150.00	145.00	147.50
1077	NASDAQ	AMSC	Thu, Aug 29, 1996	146.25	150.00	145.00	147.50
1076	NASDAQ	AMSC	Wed, Aug 28, 1996	145.00	152.50	145.00	146.25
1075	NASDAQ	AMSC	Tue, Aug 27, 1996	150.00	150.00	145.00	145.00
1074	NASDAQ	AMSC	Mon, Aug 26, 1996	150.00	150.00	143.75	150.00
1073	NASDAQ	AMSC	Fri, Aug 23, 1996	132.50	150.00	132.50	145.00
1072	NASDAQ	AMSC	Thu, Aug 22, 1996	131.25	140.00	128.75	140.00
1071	NASDAQ	AMSC	Wed, Aug 21, 1996	126.25	132.50	123.75	132.50
1070	NASDAQ	AMSC	Tue, Aug 20, 1996	127.50	127.50	122.50	126.25
1069	NASDAQ	AMSC	Mon, Aug 19, 1996	127.50	130.00	120.00	122.50
1068	NASDAQ	AMSC	Fri, Aug 16, 1996	126.25	130.00	126.25	130.00
1067	NASDAQ	AMSC	Thu, Aug 15, 1996	125.00	128.75	125.00	128.75
1066	NASDAQ	AMSC	Wed, Aug 14, 1996	124.38	128.75	124.38	128.75
1065	NASDAQ	AMSC	Tue, Aug 13, 1996	132.50	132.50	127.50	130.00
1064	NASDAQ	AMSC	Mon, Aug 12, 1996	122.50	130.00	122.50	127.50
1063	NASDAQ	AMSC	Fri, Aug 9, 1996	127.50	127.50	122.50	122.50
1062	NASDAQ	AMSC	Thu, Aug 8, 1996	122.50	127.50	122.50	122.50
1061	NASDAQ	AMSC	Wed, Aug 7, 1996	121.25	127.50	121.25	122.50
1060	NASDAQ	AMSC	Tue, Aug 6, 1996	121.25	121.25	120.00	120.00
1059	NASDAQ	AMSC	Mon, Aug 5, 1996	122.50	125.00	120.00	120.00
1058	NASDAQ	AMSC	Fri, Aug 2, 1996	126.25	127.50	123.75	123.75
1057	NASDAQ	AMSC	Thu, Aug 1, 1996	120.00	120.00	112.50	120.00
1056	NASDAQ	AMSC	Wed, Jul 31, 1996	115.00	122.50	115.00	116.25
1055	NASDAQ	AMSC	Tue, Jul 30, 1996	115.00	122.50	115.00	122.50
1054	NASDAQ	AMSC	Mon, Jul 29, 1996	120.00	122.50	110.00	116.88
1053	NASDAQ	AMSC	Fri, Jul 26, 1996	120.00	125.00	117.50	122.50
1052	NASDAQ	AMSC	Thu, Jul 25, 1996	125.00	125.00	120.00	125.00
1051	NASDAQ	AMSC	Wed, Jul 24, 1996	117.50	125.00	117.50	120.00
1050	NASDAQ	AMSC	Tue, Jul 23, 1996	130.00	130.00	120.00	120.00
1049	NASDAQ	AMSC	Mon, Jul 22, 1996	130.00	130.00	125.00	125.00
1048	NASDAQ	AMSC	Fri, Jul 19, 1996	130.00	135.00	125.00	130.00
1047	NASDAQ	AMSC	Thu, Jul 18, 1996	135.00	135.00	135.00	135.00
1046	NASDAQ	AMSC	Wed, Jul 17, 1996	145.00	145.00	135.00	135.00
1045	NASDAQ	AMSC	Tue, Jul 16, 1996	135.00	142.50	125.00	142.50
1044	NASDAQ	AMSC	Mon, Jul 15, 1996	132.50	137.50	130.00	137.50
1043	NASDAQ	AMSC	Fri, Jul 12, 1996	135.00	140.00	135.00	135.00
1042	NASDAQ	AMSC	Thu, Jul 11, 1996	137.50	140.00	132.50	137.50
1041	NASDAQ	AMSC	Wed, Jul 10, 1996	142.50	142.50	132.50	137.50
1040	NASDAQ	AMSC	Tue, Jul 9, 1996	142.50	147.50	142.50	142.50
1039	NASDAQ	AMSC	Mon, Jul 8, 1996	147.50	155.00	142.50	145.00
1038	NASDAQ	AMSC	Fri, Jul 5, 1996	152.50	157.50	150.00	150.00
1037	NASDAQ	AMSC	Wed, Jul 3, 1996	157.50	157.50	155.00	157.50
1036	NASDAQ	AMSC	Tue, Jul 2, 1996	151.25	157.50	151.25	155.00
1035	NASDAQ	AMSC	Mon, Jul 1, 1996	140.00	155.00	140.00	150.00
1034	NASDAQ	AMSC	Fri, Jun 28, 1996	131.25	145.00	128.75	142.50
1033	NASDAQ	AMSC	Thu, Jun 27, 1996	130.00	132.50	127.50	127.50
1032	NASDAQ	AMSC	Wed, Jun 26, 1996	136.25	140.00	130.00	130.00
1031	NASDAQ	AMSC	Tue, Jun 25, 1996	137.50	140.00	133.75	136.25
1030	NASDAQ	AMSC	Mon, Jun 24, 1996	140.00	140.00	137.50	140.00
1029	NASDAQ	AMSC	Fri, Jun 21, 1996	142.50	142.50	137.50	140.00
1028	NASDAQ	AMSC	Thu, Jun 20, 1996	145.00	145.00	137.50	141.25
1027	NASDAQ	AMSC	Wed, Jun 19, 1996	141.25	142.50	140.00	140.00
1026	NASDAQ	AMSC	Tue, Jun 18, 1996	140.00	141.25	140.00	140.00
1025	NASDAQ	AMSC	Mon, Jun 17, 1996	141.25	141.25	137.50	140.00
1024	NASDAQ	AMSC	Fri, Jun 14, 1996	142.50	142.50	137.50	141.25
1023	NASDAQ	AMSC	Thu, Jun 13, 1996	142.50	142.50	140.00	140.00
1022	NASDAQ	AMSC	Wed, Jun 12, 1996	142.50	145.00	137.50	142.50
1021	NASDAQ	AMSC	Tue, Jun 11, 1996	135.00	147.50	135.00	142.50
1020	NASDAQ	AMSC	Mon, Jun 10, 1996	135.00	140.00	135.00	140.00
1019	NASDAQ	AMSC	Fri, Jun 7, 1996	140.00	140.00	135.00	135.00
1018	NASDAQ	AMSC	Thu, Jun 6, 1996	136.25	140.00	133.75	140.00
1017	NASDAQ	AMSC	Wed, Jun 5, 1996	136.25	136.25	133.75	133.75
1016	NASDAQ	AMSC	Tue, Jun 4, 1996	141.25	141.25	132.50	136.25
1015	NASDAQ	AMSC	Mon, Jun 3, 1996	140.00	142.50	135.00	141.25
1014	NASDAQ	AMSC	Fri, May 31, 1996	140.00	145.00	140.00	140.00
1013	NASDAQ	AMSC	Thu, May 30, 1996	140.00	145.00	140.00	145.00
1012	NASDAQ	AMSC	Wed, May 29, 1996	147.50	147.50	140.00	142.50
1011	NASDAQ	AMSC	Tue, May 28, 1996	145.00	147.50	140.00	140.00
1010	NASDAQ	AMSC	Fri, May 24, 1996	142.50	147.50	142.50	142.50
1009	NASDAQ	AMSC	Thu, May 23, 1996	142.50	147.50	142.50	145.00
1008	NASDAQ	AMSC	Wed, May 22, 1996	145.00	147.50	145.00	145.63
1007	NASDAQ	AMSC	Tue, May 21, 1996	145.00	147.50	145.00	145.00
1006	NASDAQ	AMSC	Mon, May 20, 1996	143.75	147.50	143.75	145.00
1005	NASDAQ	AMSC	Fri, May 17, 1996	147.50	147.50	143.75	147.50
1004	NASDAQ	AMSC	Thu, May 16, 1996	142.50	147.50	142.50	147.50
1003	NASDAQ	AMSC	Wed, May 15, 1996	142.50	147.50	137.50	147.50
1002	NASDAQ	AMSC	Tue, May 14, 1996	137.50	145.00	137.50	142.50
1001	NASDAQ	AMSC	Mon, May 13, 1996	135.00	142.50	135.00	140.00
1000	NASDAQ	AMSC	Fri, May 10, 1996	142.50	142.50	135.00	142.50
999	NASDAQ	AMSC	Thu, May 9, 1996	137.50	145.00	135.00	135.00
998	NASDAQ	AMSC	Wed, May 8, 1996	130.00	137.50	130.00	132.50
997	NASDAQ	AMSC	Tue, May 7, 1996	135.00	137.50	130.00	130.00
996	NASDAQ	AMSC	Mon, May 6, 1996	137.50	137.50	127.50	131.25
995	NASDAQ	AMSC	Fri, May 3, 1996	135.00	140.00	135.00	137.50
994	NASDAQ	AMSC	Thu, May 2, 1996	143.75	145.00	135.00	140.00
993	NASDAQ	AMSC	Wed, May 1, 1996	145.00	150.00	142.50	143.75
992	NASDAQ	AMSC	Tue, Apr 30, 1996	145.00	150.00	138.75	143.75
991	NASDAQ	AMSC	Mon, Apr 29, 1996	137.50	145.00	132.50	140.00
990	NASDAQ	AMSC	Fri, Apr 26, 1996	137.50	137.50	132.50	135.00
989	NASDAQ	AMSC	Thu, Apr 25, 1996	132.50	137.50	132.50	137.50
988	NASDAQ	AMSC	Wed, Apr 24, 1996	140.00	140.00	132.50	137.50
987	NASDAQ	AMSC	Tue, Apr 23, 1996	135.00	137.50	131.25	132.50
986	NASDAQ	AMSC	Mon, Apr 22, 1996	131.88	136.25	128.75	136.25
985	NASDAQ	AMSC	Fri, Apr 19, 1996	135.00	136.25	130.00	130.00
984	NASDAQ	AMSC	Thu, Apr 18, 1996	130.00	135.00	130.00	135.00
983	NASDAQ	AMSC	Wed, Apr 17, 1996	135.00	137.50	130.00	131.25
982	NASDAQ	AMSC	Tue, Apr 16, 1996	127.50	132.50	127.50	130.00
981	NASDAQ	AMSC	Mon, Apr 15, 1996	122.50	127.50	122.50	125.00
980	NASDAQ	AMSC	Fri, Apr 12, 1996	125.00	127.50	122.50	123.75
979	NASDAQ	AMSC	Thu, Apr 11, 1996	130.00	130.00	121.25	123.75
978	NASDAQ	AMSC	Wed, Apr 10, 1996	130.00	130.00	125.00	126.88
977	NASDAQ	AMSC	Tue, Apr 9, 1996	130.00	130.00	125.00	125.00
976	NASDAQ	AMSC	Mon, Apr 8, 1996	132.50	132.50	123.13	128.75
975	NASDAQ	AMSC	Thu, Apr 4, 1996	128.75	135.00	128.75	130.00
974	NASDAQ	AMSC	Wed, Apr 3, 1996	135.00	135.00	127.50	127.50
973	NASDAQ	AMSC	Tue, Apr 2, 1996	132.50	140.00	127.50	132.50
972	NASDAQ	AMSC	Mon, Apr 1, 1996	140.00	140.00	132.50	132.50
971	NASDAQ	AMSC	Fri, Mar 29, 1996	142.50	145.00	135.00	140.00
970	NASDAQ	AMSC	Thu, Mar 28, 1996	142.50	147.50	132.50	141.25
969	NASDAQ	AMSC	Wed, Mar 27, 1996	150.00	150.00	145.00	147.50
968	NASDAQ	AMSC	Tue, Mar 26, 1996	147.50	150.00	145.00	147.50
967	NASDAQ	AMSC	Mon, Mar 25, 1996	146.25	150.00	145.00	146.25
966	NASDAQ	AMSC	Fri, Mar 22, 1996	145.00	150.00	145.00	145.00
965	NASDAQ	AMSC	Thu, Mar 21, 1996	145.00	150.00	145.00	150.00
964	NASDAQ	AMSC	Wed, Mar 20, 1996	150.00	150.00	145.00	150.00
963	NASDAQ	AMSC	Tue, Mar 19, 1996	147.50	155.00	140.00	150.00
962	NASDAQ	AMSC	Mon, Mar 18, 1996	150.00	160.00	145.00	148.75
961	NASDAQ	AMSC	Fri, Mar 15, 1996	130.00	160.00	126.25	155.00
960	NASDAQ	AMSC	Thu, Mar 14, 1996	123.75	130.00	123.75	130.00
959	NASDAQ	AMSC	Wed, Mar 13, 1996	130.00	130.00	120.00	122.50
958	NASDAQ	AMSC	Tue, Mar 12, 1996	130.00	130.00	122.50	126.25
957	NASDAQ	AMSC	Mon, Mar 11, 1996	122.50	130.00	120.00	125.00
956	NASDAQ	AMSC	Fri, Mar 8, 1996	127.50	130.00	120.00	125.00
955	NASDAQ	AMSC	Thu, Mar 7, 1996	135.00	135.00	127.50	127.50
954	NASDAQ	AMSC	Wed, Mar 6, 1996	130.00	135.00	126.25	128.59
953	NASDAQ	AMSC	Tue, Mar 5, 1996	130.00	130.00	130.00	130.00
952	NASDAQ	AMSC	Mon, Mar 4, 1996	130.00	130.00	125.00	127.50
951	NASDAQ	AMSC	Fri, Mar 1, 1996	125.00	130.00	122.50	127.50
950	NASDAQ	AMSC	Thu, Feb 29, 1996	130.00	130.00	125.00	130.00
949	NASDAQ	AMSC	Wed, Feb 28, 1996	130.00	135.00	125.00	130.00
948	NASDAQ	AMSC	Tue, Feb 27, 1996	142.50	142.50	130.00	130.00
947	NASDAQ	AMSC	Mon, Feb 26, 1996	142.50	142.50	137.50	137.50
946	NASDAQ	AMSC	Fri, Feb 23, 1996	141.25	142.50	140.00	140.00
945	NASDAQ	AMSC	Thu, Feb 22, 1996	140.00	145.00	140.00	141.25
944	NASDAQ	AMSC	Wed, Feb 21, 1996	145.00	145.00	138.75	140.00
943	NASDAQ	AMSC	Tue, Feb 20, 1996	142.50	142.50	138.75	142.50
942	NASDAQ	AMSC	Fri, Feb 16, 1996	135.00	142.50	135.00	142.50
941	NASDAQ	AMSC	Thu, Feb 15, 1996	142.50	142.50	137.50	137.50
940	NASDAQ	AMSC	Wed, Feb 14, 1996	142.50	142.50	137.50	142.50
939	NASDAQ	AMSC	Tue, Feb 13, 1996	142.50	145.00	137.50	137.50
938	NASDAQ	AMSC	Mon, Feb 12, 1996	146.25	150.00	142.50	142.50
937	NASDAQ	AMSC	Fri, Feb 9, 1996	142.50	152.50	142.50	145.00
936	NASDAQ	AMSC	Thu, Feb 8, 1996	145.00	152.50	142.50	142.50
935	NASDAQ	AMSC	Wed, Feb 7, 1996	135.00	152.50	135.00	152.50
934	NASDAQ	AMSC	Tue, Feb 6, 1996	140.00	140.00	135.00	135.00
933	NASDAQ	AMSC	Mon, Feb 5, 1996	140.00	140.00	135.00	140.00
932	NASDAQ	AMSC	Fri, Feb 2, 1996	140.00	140.00	135.00	135.00
931	NASDAQ	AMSC	Thu, Feb 1, 1996	140.00	140.00	137.50	138.75
930	NASDAQ	AMSC	Wed, Jan 31, 1996	145.00	145.00	135.00	137.50
929	NASDAQ	AMSC	Tue, Jan 30, 1996	136.25	145.00	135.00	142.50
928	NASDAQ	AMSC	Mon, Jan 29, 1996	135.00	142.50	132.50	132.50
927	NASDAQ	AMSC	Fri, Jan 26, 1996	130.00	137.50	130.00	135.00
926	NASDAQ	AMSC	Thu, Jan 25, 1996	135.00	140.00	135.00	137.50
925	NASDAQ	AMSC	Wed, Jan 24, 1996	142.50	142.50	135.00	135.00
924	NASDAQ	AMSC	Tue, Jan 23, 1996	135.00	145.00	135.00	142.50
923	NASDAQ	AMSC	Mon, Jan 22, 1996	132.50	145.00	127.50	135.00
922	NASDAQ	AMSC	Fri, Jan 19, 1996	132.50	132.50	128.75	132.50
921	NASDAQ	AMSC	Thu, Jan 18, 1996	127.50	132.50	127.50	130.00
920	NASDAQ	AMSC	Wed, Jan 17, 1996	127.50	135.00	127.50	130.00
919	NASDAQ	AMSC	Tue, Jan 16, 1996	142.50	142.50	130.00	130.00
918	NASDAQ	AMSC	Mon, Jan 15, 1996	142.50	142.50	135.00	140.00
917	NASDAQ	AMSC	Fri, Jan 12, 1996	141.25	145.00	135.00	142.50
916	NASDAQ	AMSC	Thu, Jan 11, 1996	140.00	146.25	137.50	141.25
915	NASDAQ	AMSC	Wed, Jan 10, 1996	138.75	145.00	135.00	140.00
914	NASDAQ	AMSC	Tue, Jan 9, 1996	145.00	150.00	135.00	135.00
913	NASDAQ	AMSC	Mon, Jan 8, 1996	145.00	150.00	145.00	145.00
912	NASDAQ	AMSC	Fri, Jan 5, 1996	150.00	150.00	145.00	150.00
911	NASDAQ	AMSC	Thu, Jan 4, 1996	155.00	155.00	145.00	145.00
910	NASDAQ	AMSC	Wed, Jan 3, 1996	157.50	157.50	147.50	150.00
909	NASDAQ	AMSC	Tue, Jan 2, 1996	150.00	160.00	142.50	157.50
908	NASDAQ	AMSC	Fri, Dec 29, 1995	147.50	152.50	140.00	145.00
907	NASDAQ	AMSC	Thu, Dec 28, 1995	147.50	147.50	140.00	145.00
906	NASDAQ	AMSC	Wed, Dec 27, 1995	137.50	147.50	131.25	147.50
905	NASDAQ	AMSC	Tue, Dec 26, 1995	147.50	150.00	127.50	133.75
904	NASDAQ	AMSC	Fri, Dec 22, 1995	147.50	150.00	140.00	150.00
903	NASDAQ	AMSC	Thu, Dec 21, 1995	127.50	147.50	127.50	140.00
902	NASDAQ	AMSC	Wed, Dec 20, 1995	125.00	132.50	125.00	127.50
901	NASDAQ	AMSC	Tue, Dec 19, 1995	127.50	130.00	122.50	130.00
900	NASDAQ	AMSC	Mon, Dec 18, 1995	123.75	127.50	122.50	127.50
899	NASDAQ	AMSC	Fri, Dec 15, 1995	132.50	132.50	122.50	123.75
898	NASDAQ	AMSC	Thu, Dec 14, 1995	120.00	132.50	120.00	127.50
897	NASDAQ	AMSC	Wed, Dec 13, 1995	112.50	117.50	106.25	113.75
896	NASDAQ	AMSC	Tue, Dec 12, 1995	113.75	117.50	112.50	113.75
895	NASDAQ	AMSC	Mon, Dec 11, 1995	120.00	120.00	110.00	115.00
894	NASDAQ	AMSC	Fri, Dec 8, 1995	117.50	120.00	110.00	120.00
893	NASDAQ	AMSC	Thu, Dec 7, 1995	107.50	118.75	107.50	118.75
892	NASDAQ	AMSC	Wed, Dec 6, 1995	110.00	112.50	106.25	107.50
891	NASDAQ	AMSC	Tue, Dec 5, 1995	115.00	122.50	110.00	110.00
890	NASDAQ	AMSC	Mon, Dec 4, 1995	117.50	121.25	117.50	120.00
889	NASDAQ	AMSC	Fri, Dec 1, 1995	120.00	125.00	115.00	115.00
888	NASDAQ	AMSC	Thu, Nov 30, 1995	125.00	127.50	120.00	122.50
887	NASDAQ	AMSC	Wed, Nov 29, 1995	127.50	127.50	122.50	122.50
886	NASDAQ	AMSC	Tue, Nov 28, 1995	127.50	127.50	120.00	127.50
885	NASDAQ	AMSC	Mon, Nov 27, 1995	117.50	127.50	117.50	127.50
884	NASDAQ	AMSC	Fri, Nov 24, 1995	120.00	127.50	117.50	120.00
883	NASDAQ	AMSC	Wed, Nov 22, 1995	120.00	125.00	120.00	120.00
882	NASDAQ	AMSC	Tue, Nov 21, 1995	120.00	127.50	120.00	120.00
881	NASDAQ	AMSC	Mon, Nov 20, 1995	122.50	127.50	117.50	120.00
880	NASDAQ	AMSC	Fri, Nov 17, 1995	117.50	122.50	117.50	122.50
879	NASDAQ	AMSC	Thu, Nov 16, 1995	122.50	122.50	117.50	122.50
878	NASDAQ	AMSC	Wed, Nov 15, 1995	120.00	122.50	117.50	122.50
877	NASDAQ	AMSC	Tue, Nov 14, 1995	122.50	122.50	117.50	120.00
876	NASDAQ	AMSC	Mon, Nov 13, 1995	132.50	137.50	125.00	130.00
875	NASDAQ	AMSC	Fri, Nov 10, 1995	127.50	132.50	121.25	132.50
874	NASDAQ	AMSC	Thu, Nov 9, 1995	106.25	127.50	106.25	121.25
873	NASDAQ	AMSC	Wed, Nov 8, 1995	112.50	112.50	106.25	110.00
872	NASDAQ	AMSC	Tue, Nov 7, 1995	112.50	112.50	105.00	112.50
871	NASDAQ	AMSC	Mon, Nov 6, 1995	105.00	112.50	105.00	111.25
870	NASDAQ	AMSC	Fri, Nov 3, 1995	110.00	110.00	102.50	110.00
869	NASDAQ	AMSC	Thu, Nov 2, 1995	112.50	112.50	102.50	106.25
868	NASDAQ	AMSC	Wed, Nov 1, 1995	105.00	112.50	105.00	105.00
867	NASDAQ	AMSC	Tue, Oct 31, 1995	105.00	115.00	105.00	105.00
866	NASDAQ	AMSC	Mon, Oct 30, 1995	115.00	115.00	105.00	115.00
865	NASDAQ	AMSC	Fri, Oct 27, 1995	105.00	115.00	105.00	115.00
864	NASDAQ	AMSC	Thu, Oct 26, 1995	107.50	117.50	105.00	108.75
863	NASDAQ	AMSC	Wed, Oct 25, 1995	112.50	117.50	107.50	107.50
862	NASDAQ	AMSC	Tue, Oct 24, 1995	120.00	120.00	110.00	112.50
861	NASDAQ	AMSC	Mon, Oct 23, 1995	112.50	120.00	112.50	115.00
860	NASDAQ	AMSC	Fri, Oct 20, 1995	112.50	120.00	112.50	115.00
859	NASDAQ	AMSC	Thu, Oct 19, 1995	112.50	120.00	112.50	120.00
858	NASDAQ	AMSC	Wed, Oct 18, 1995	117.50	122.50	112.50	120.00
857	NASDAQ	AMSC	Tue, Oct 17, 1995	110.00	122.50	110.00	122.50
856	NASDAQ	AMSC	Mon, Oct 16, 1995	120.00	125.00	105.00	110.00
855	NASDAQ	AMSC	Fri, Oct 13, 1995	117.50	125.00	112.50	125.00
854	NASDAQ	AMSC	Thu, Oct 12, 1995	117.50	127.50	117.50	117.50
853	NASDAQ	AMSC	Wed, Oct 11, 1995	127.50	127.50	117.50	127.50
852	NASDAQ	AMSC	Tue, Oct 10, 1995	120.00	125.00	117.50	117.50
851	NASDAQ	AMSC	Mon, Oct 9, 1995	127.50	127.50	120.00	127.50
850	NASDAQ	AMSC	Fri, Oct 6, 1995	120.00	127.50	120.00	127.50
849	NASDAQ	AMSC	Thu, Oct 5, 1995	122.50	130.00	120.00	120.00
848	NASDAQ	AMSC	Wed, Oct 4, 1995	127.50	135.00	120.00	122.50
847	NASDAQ	AMSC	Tue, Oct 3, 1995	130.00	135.00	127.50	127.50
846	NASDAQ	AMSC	Mon, Oct 2, 1995	132.50	135.00	127.50	132.50
845	NASDAQ	AMSC	Fri, Sep 29, 1995	135.00	135.00	127.50	132.50
844	NASDAQ	AMSC	Thu, Sep 28, 1995	135.00	135.00	130.00	135.00
843	NASDAQ	AMSC	Wed, Sep 27, 1995	130.00	137.50	130.00	130.00
842	NASDAQ	AMSC	Tue, Sep 26, 1995	130.00	137.50	130.00	137.50
841	NASDAQ	AMSC	Mon, Sep 25, 1995	137.50	137.50	130.00	137.50
840	NASDAQ	AMSC	Fri, Sep 22, 1995	137.50	137.50	130.63	137.50
839	NASDAQ	AMSC	Thu, Sep 21, 1995	132.50	137.50	132.50	135.00
838	NASDAQ	AMSC	Wed, Sep 20, 1995	137.50	137.50	130.00	137.50
837	NASDAQ	AMSC	Tue, Sep 19, 1995	137.50	137.50	130.00	137.50
836	NASDAQ	AMSC	Mon, Sep 18, 1995	140.00	142.50	132.50	137.50
835	NASDAQ	AMSC	Fri, Sep 15, 1995	135.00	142.50	133.75	142.50
834	NASDAQ	AMSC	Thu, Sep 14, 1995	132.50	132.50	127.50	130.00
833	NASDAQ	AMSC	Wed, Sep 13, 1995	130.00	137.50	125.00	130.00
832	NASDAQ	AMSC	Tue, Sep 12, 1995	120.00	130.00	120.00	130.00
831	NASDAQ	AMSC	Mon, Sep 11, 1995	127.50	127.50	120.00	120.00
830	NASDAQ	AMSC	Fri, Sep 8, 1995	127.50	127.50	121.25	127.50
829	NASDAQ	AMSC	Thu, Sep 7, 1995	122.50	132.50	120.00	125.00
828	NASDAQ	AMSC	Wed, Sep 6, 1995	132.50	132.50	122.50	122.50
827	NASDAQ	AMSC	Tue, Sep 5, 1995	132.50	132.50	122.50	127.50
826	NASDAQ	AMSC	Fri, Sep 1, 1995	127.50	132.50	122.50	125.00
825	NASDAQ	AMSC	Thu, Aug 31, 1995	132.50	132.50	127.50	132.50
824	NASDAQ	AMSC	Wed, Aug 30, 1995	132.50	132.50	127.50	127.50
823	NASDAQ	AMSC	Tue, Aug 29, 1995	127.50	132.50	127.50	127.50
822	NASDAQ	AMSC	Mon, Aug 28, 1995	127.50	132.50	127.50	127.50
821	NASDAQ	AMSC	Fri, Aug 25, 1995	135.00	135.00	127.50	129.38
820	NASDAQ	AMSC	Thu, Aug 24, 1995	127.50	135.00	127.50	130.00
819	NASDAQ	AMSC	Wed, Aug 23, 1995	135.00	135.00	128.75	135.00
818	NASDAQ	AMSC	Tue, Aug 22, 1995	127.50	135.00	127.50	127.50
817	NASDAQ	AMSC	Mon, Aug 21, 1995	127.50	135.00	127.50	135.00
816	NASDAQ	AMSC	Fri, Aug 18, 1995	135.00	135.00	127.50	127.50
815	NASDAQ	AMSC	Thu, Aug 17, 1995	135.00	135.00	127.50	130.00
814	NASDAQ	AMSC	Wed, Aug 16, 1995	127.50	135.00	127.50	135.00
813	NASDAQ	AMSC	Tue, Aug 15, 1995	135.00	135.00	127.50	127.50
812	NASDAQ	AMSC	Mon, Aug 14, 1995	135.00	135.00	127.50	135.00
811	NASDAQ	AMSC	Fri, Aug 11, 1995	132.50	135.00	128.75	135.00
810	NASDAQ	AMSC	Thu, Aug 10, 1995	127.50	132.50	127.50	127.50
809	NASDAQ	AMSC	Wed, Aug 9, 1995	127.50	135.00	127.50	130.00
808	NASDAQ	AMSC	Tue, Aug 8, 1995	130.00	135.00	127.50	127.50
807	NASDAQ	AMSC	Mon, Aug 7, 1995	135.00	135.00	130.00	133.75
806	NASDAQ	AMSC	Fri, Aug 4, 1995	130.00	135.00	130.00	135.00
805	NASDAQ	AMSC	Thu, Aug 3, 1995	135.00	135.00	130.00	130.00
804	NASDAQ	AMSC	Wed, Aug 2, 1995	132.50	135.00	130.00	130.00
803	NASDAQ	AMSC	Tue, Aug 1, 1995	135.00	135.00	127.50	135.00
802	NASDAQ	AMSC	Mon, Jul 31, 1995	135.00	135.00	127.50	135.00
801	NASDAQ	AMSC	Fri, Jul 28, 1995	135.00	135.00	130.00	135.00
800	NASDAQ	AMSC	Thu, Jul 27, 1995	135.00	135.00	127.50	135.00
799	NASDAQ	AMSC	Wed, Jul 26, 1995	125.00	135.00	122.50	135.00
798	NASDAQ	AMSC	Tue, Jul 25, 1995	125.00	130.00	122.50	122.50
797	NASDAQ	AMSC	Mon, Jul 24, 1995	125.00	125.00	120.00	120.00
796	NASDAQ	AMSC	Fri, Jul 21, 1995	125.00	125.00	120.00	125.00
795	NASDAQ	AMSC	Thu, Jul 20, 1995	127.50	127.50	117.50	125.00
794	NASDAQ	AMSC	Wed, Jul 19, 1995	130.00	135.00	130.00	130.00
793	NASDAQ	AMSC	Tue, Jul 18, 1995	135.00	135.00	130.00	135.00
792	NASDAQ	AMSC	Mon, Jul 17, 1995	132.50	142.50	125.00	135.00
791	NASDAQ	AMSC	Fri, Jul 14, 1995	132.50	142.50	132.50	142.50
790	NASDAQ	AMSC	Thu, Jul 13, 1995	132.50	142.50	132.50	142.50
789	NASDAQ	AMSC	Wed, Jul 12, 1995	132.50	142.50	132.50	135.00
788	NASDAQ	AMSC	Tue, Jul 11, 1995	142.50	142.50	132.50	140.00
787	NASDAQ	AMSC	Mon, Jul 10, 1995	132.50	142.50	132.50	142.50
786	NASDAQ	AMSC	Fri, Jul 7, 1995	137.50	142.50	132.50	138.75
785	NASDAQ	AMSC	Thu, Jul 6, 1995	132.50	142.50	132.50	132.50
784	NASDAQ	AMSC	Wed, Jul 5, 1995	132.50	142.50	132.50	140.00
783	NASDAQ	AMSC	Mon, Jul 3, 1995	135.00	135.00	135.00	135.00
782	NASDAQ	AMSC	Fri, Jun 30, 1995	132.50	142.50	132.50	142.50
781	NASDAQ	AMSC	Thu, Jun 29, 1995	133.75	140.00	132.50	132.50
780	NASDAQ	AMSC	Wed, Jun 28, 1995	132.50	140.00	132.50	136.25
779	NASDAQ	AMSC	Tue, Jun 27, 1995	132.50	142.50	132.50	132.50
778	NASDAQ	AMSC	Mon, Jun 26, 1995	142.50	142.50	132.50	142.50
777	NASDAQ	AMSC	Fri, Jun 23, 1995	132.50	142.50	132.50	132.50
776	NASDAQ	AMSC	Thu, Jun 22, 1995	136.25	142.50	132.50	142.50
775	NASDAQ	AMSC	Wed, Jun 21, 1995	132.50	142.50	132.50	142.50
774	NASDAQ	AMSC	Tue, Jun 20, 1995	135.00	142.50	132.50	132.50
773	NASDAQ	AMSC	Mon, Jun 19, 1995	137.50	142.50	130.00	142.50
772	NASDAQ	AMSC	Fri, Jun 16, 1995	137.50	137.50	130.00	137.50
771	NASDAQ	AMSC	Thu, Jun 15, 1995	130.00	137.50	130.00	137.50
770	NASDAQ	AMSC	Wed, Jun 14, 1995	135.00	135.00	130.00	130.00
769	NASDAQ	AMSC	Tue, Jun 13, 1995	130.00	135.00	130.00	135.00
768	NASDAQ	AMSC	Mon, Jun 12, 1995	142.50	142.50	130.00	135.00
767	NASDAQ	AMSC	Fri, Jun 9, 1995	140.00	142.50	135.00	140.00
766	NASDAQ	AMSC	Thu, Jun 8, 1995	137.50	142.50	135.00	137.50
765	NASDAQ	AMSC	Wed, Jun 7, 1995	140.00	147.50	135.00	142.50
764	NASDAQ	AMSC	Tue, Jun 6, 1995	140.00	147.50	140.00	147.50
763	NASDAQ	AMSC	Mon, Jun 5, 1995	147.50	147.50	140.00	140.00
762	NASDAQ	AMSC	Fri, Jun 2, 1995	146.25	151.25	140.00	142.50
761	NASDAQ	AMSC	Thu, Jun 1, 1995	145.00	152.50	145.00	145.00
760	NASDAQ	AMSC	Wed, May 31, 1995	150.00	152.50	145.00	152.50
759	NASDAQ	AMSC	Tue, May 30, 1995	150.00	151.88	150.00	150.00
758	NASDAQ	AMSC	Fri, May 26, 1995	150.00	157.50	150.00	150.63
757	NASDAQ	AMSC	Thu, May 25, 1995	150.00	157.50	150.00	157.50
756	NASDAQ	AMSC	Wed, May 24, 1995	150.00	152.50	150.00	150.00
755	NASDAQ	AMSC	Tue, May 23, 1995	150.00	155.00	150.00	150.00
754	NASDAQ	AMSC	Mon, May 22, 1995	150.00	155.00	150.00	155.00
753	NASDAQ	AMSC	Fri, May 19, 1995	155.00	155.00	150.00	155.00
752	NASDAQ	AMSC	Thu, May 18, 1995	150.00	157.50	150.00	150.00
751	NASDAQ	AMSC	Wed, May 17, 1995	147.50	157.50	147.50	157.50
750	NASDAQ	AMSC	Tue, May 16, 1995	160.00	160.00	150.00	150.00
749	NASDAQ	AMSC	Mon, May 15, 1995	160.00	160.00	155.00	155.00
748	NASDAQ	AMSC	Fri, May 12, 1995	152.50	160.00	152.50	156.25
747	NASDAQ	AMSC	Thu, May 11, 1995	152.50	162.50	152.50	160.00
746	NASDAQ	AMSC	Wed, May 10, 1995	156.25	162.50	152.50	162.50
745	NASDAQ	AMSC	Tue, May 9, 1995	162.50	162.50	150.00	152.50
744	NASDAQ	AMSC	Mon, May 8, 1995	177.50	177.50	157.50	160.00
743	NASDAQ	AMSC	Fri, May 5, 1995	180.00	182.50	180.00	182.50
742	NASDAQ	AMSC	Thu, May 4, 1995	182.50	182.50	177.50	177.50
741	NASDAQ	AMSC	Wed, May 3, 1995	175.00	185.00	175.00	177.50
740	NASDAQ	AMSC	Tue, May 2, 1995	172.50	185.00	168.75	180.00
739	NASDAQ	AMSC	Mon, May 1, 1995	165.00	175.00	165.00	170.00
738	NASDAQ	AMSC	Fri, Apr 28, 1995	170.00	172.50	165.00	165.00
737	NASDAQ	AMSC	Thu, Apr 27, 1995	172.50	172.50	165.00	172.50
736	NASDAQ	AMSC	Wed, Apr 26, 1995	165.00	172.50	165.00	170.00
735	NASDAQ	AMSC	Tue, Apr 25, 1995	165.00	172.50	165.00	167.50
734	NASDAQ	AMSC	Mon, Apr 24, 1995	172.50	172.50	165.00	165.00
733	NASDAQ	AMSC	Fri, Apr 21, 1995	172.50	172.50	165.00	165.00
732	NASDAQ	AMSC	Thu, Apr 20, 1995	172.50	172.50	152.50	172.50
731	NASDAQ	AMSC	Wed, Apr 19, 1995	192.50	192.50	157.50	172.50
730	NASDAQ	AMSC	Tue, Apr 18, 1995	185.00	185.00	185.00	185.00
729	NASDAQ	AMSC	Mon, Apr 17, 1995	192.50	192.50	185.00	185.00
728	NASDAQ	AMSC	Thu, Apr 13, 1995	185.00	192.50	185.00	192.50
727	NASDAQ	AMSC	Wed, Apr 12, 1995	185.00	192.50	185.00	192.50
726	NASDAQ	AMSC	Tue, Apr 11, 1995	185.00	192.50	185.00	185.00
725	NASDAQ	AMSC	Mon, Apr 10, 1995	192.50	192.50	185.00	192.50
724	NASDAQ	AMSC	Fri, Apr 7, 1995	180.00	192.50	180.00	192.50
723	NASDAQ	AMSC	Thu, Apr 6, 1995	180.00	187.50	180.00	180.00
722	NASDAQ	AMSC	Wed, Apr 5, 1995	185.00	187.50	180.00	183.75
721	NASDAQ	AMSC	Tue, Apr 4, 1995	180.00	185.00	180.00	185.00
720	NASDAQ	AMSC	Mon, Apr 3, 1995	185.00	192.50	180.00	182.50
719	NASDAQ	AMSC	Fri, Mar 31, 1995	187.50	197.50	187.50	197.50
718	NASDAQ	AMSC	Thu, Mar 30, 1995	197.50	197.50	187.50	192.50
717	NASDAQ	AMSC	Wed, Mar 29, 1995	190.00	197.50	187.50	197.50
716	NASDAQ	AMSC	Tue, Mar 28, 1995	187.50	197.50	187.50	190.00
715	NASDAQ	AMSC	Mon, Mar 27, 1995	195.00	195.00	187.50	192.50
714	NASDAQ	AMSC	Fri, Mar 24, 1995	185.00	195.00	185.00	195.00
713	NASDAQ	AMSC	Thu, Mar 23, 1995	187.50	190.00	182.50	182.50
712	NASDAQ	AMSC	Wed, Mar 22, 1995	181.25	187.50	177.50	187.50
711	NASDAQ	AMSC	Tue, Mar 21, 1995	182.50	182.50	177.50	182.50
710	NASDAQ	AMSC	Mon, Mar 20, 1995	187.50	187.50	177.50	177.50
709	NASDAQ	AMSC	Fri, Mar 17, 1995	182.50	187.50	182.50	182.50
708	NASDAQ	AMSC	Thu, Mar 16, 1995	187.50	187.50	182.50	187.50
707	NASDAQ	AMSC	Wed, Mar 15, 1995	182.50	190.00	182.50	187.50
706	NASDAQ	AMSC	Tue, Mar 14, 1995	185.00	190.00	180.00	190.00
705	NASDAQ	AMSC	Mon, Mar 13, 1995	180.00	187.50	180.00	182.50
704	NASDAQ	AMSC	Fri, Mar 10, 1995	182.50	190.00	172.50	185.00
703	NASDAQ	AMSC	Thu, Mar 9, 1995	192.50	192.50	183.75	183.75
702	NASDAQ	AMSC	Wed, Mar 8, 1995	187.50	192.50	182.50	185.00
701	NASDAQ	AMSC	Tue, Mar 7, 1995	187.50	190.00	187.50	187.50
700	NASDAQ	AMSC	Mon, Mar 6, 1995	195.00	200.00	187.50	187.50
699	NASDAQ	AMSC	Fri, Mar 3, 1995	195.00	195.00	195.00	195.00
698	NASDAQ	AMSC	Thu, Mar 2, 1995	195.00	200.00	195.00	195.00
697	NASDAQ	AMSC	Wed, Mar 1, 1995	200.00	201.25	195.00	195.00
696	NASDAQ	AMSC	Tue, Feb 28, 1995	205.00	212.50	200.00	210.00
695	NASDAQ	AMSC	Mon, Feb 27, 1995	207.50	207.50	207.50	207.50
694	NASDAQ	AMSC	Fri, Feb 24, 1995	207.50	220.00	207.50	220.00
693	NASDAQ	AMSC	Thu, Feb 23, 1995	217.50	217.50	205.00	207.50
692	NASDAQ	AMSC	Wed, Feb 22, 1995	217.50	217.50	205.00	205.00
691	NASDAQ	AMSC	Tue, Feb 21, 1995	205.00	207.50	205.00	205.00
690	NASDAQ	AMSC	Fri, Feb 17, 1995	207.50	212.50	207.50	212.50
689	NASDAQ	AMSC	Thu, Feb 16, 1995	207.50	217.50	207.50	217.50
688	NASDAQ	AMSC	Wed, Feb 15, 1995	207.50	220.00	207.50	220.00
687	NASDAQ	AMSC	Tue, Feb 14, 1995	212.50	212.50	205.00	212.50
686	NASDAQ	AMSC	Mon, Feb 13, 1995	200.00	210.00	200.00	205.00
685	NASDAQ	AMSC	Fri, Feb 10, 1995	200.00	210.00	197.50	210.00
684	NASDAQ	AMSC	Thu, Feb 9, 1995	205.00	205.00	195.00	195.00
683	NASDAQ	AMSC	Wed, Feb 8, 1995	202.50	205.00	197.50	202.50
682	NASDAQ	AMSC	Tue, Feb 7, 1995	195.00	202.50	190.00	190.00
681	NASDAQ	AMSC	Mon, Feb 6, 1995	202.50	202.50	195.00	200.00
680	NASDAQ	AMSC	Fri, Feb 3, 1995	195.00	202.50	195.00	195.00
679	NASDAQ	AMSC	Thu, Feb 2, 1995	200.63	205.00	195.00	202.50
678	NASDAQ	AMSC	Wed, Feb 1, 1995	210.00	210.00	197.50	197.50
677	NASDAQ	AMSC	Tue, Jan 31, 1995	210.00	210.00	200.00	205.00
676	NASDAQ	AMSC	Mon, Jan 30, 1995	205.00	215.00	200.00	201.25
675	NASDAQ	AMSC	Fri, Jan 27, 1995	220.00	220.00	205.00	217.50
674	NASDAQ	AMSC	Thu, Jan 26, 1995	225.63	235.00	220.00	220.00
673	NASDAQ	AMSC	Wed, Jan 25, 1995	240.00	240.00	225.00	225.00
672	NASDAQ	AMSC	Tue, Jan 24, 1995	242.50	242.50	240.00	240.00
671	NASDAQ	AMSC	Mon, Jan 23, 1995	242.50	242.50	232.50	232.50
670	NASDAQ	AMSC	Fri, Jan 20, 1995	232.50	232.50	232.50	232.50
669	NASDAQ	AMSC	Thu, Jan 19, 1995	245.00	245.00	232.50	232.50
668	NASDAQ	AMSC	Wed, Jan 18, 1995	232.50	245.00	232.50	238.75
667	NASDAQ	AMSC	Tue, Jan 17, 1995	242.50	245.00	232.50	245.00
666	NASDAQ	AMSC	Mon, Jan 16, 1995	245.00	245.00	232.50	232.50
665	NASDAQ	AMSC	Fri, Jan 13, 1995	245.00	245.00	232.50	232.50
664	NASDAQ	AMSC	Thu, Jan 12, 1995	232.50	245.00	232.50	240.00
663	NASDAQ	AMSC	Wed, Jan 11, 1995	232.50	245.00	232.50	232.50
662	NASDAQ	AMSC	Tue, Jan 10, 1995	247.50	247.50	232.50	232.50
661	NASDAQ	AMSC	Mon, Jan 9, 1995	247.50	247.50	240.00	247.50
660	NASDAQ	AMSC	Fri, Jan 6, 1995	240.00	247.50	240.00	247.50
659	NASDAQ	AMSC	Thu, Jan 5, 1995	240.00	240.00	240.00	240.00
658	NASDAQ	AMSC	Wed, Jan 4, 1995	240.00	240.00	240.00	240.00
657	NASDAQ	AMSC	Tue, Jan 3, 1995	240.00	240.00	240.00	240.00
656	NASDAQ	AMSC	Fri, Dec 30, 1994	239.38	247.50	235.00	247.50
655	NASDAQ	AMSC	Thu, Dec 29, 1994	235.00	247.50	235.00	238.75
654	NASDAQ	AMSC	Wed, Dec 28, 1994	245.00	247.50	235.00	235.00
653	NASDAQ	AMSC	Tue, Dec 27, 1994	255.00	255.00	245.00	245.00
652	NASDAQ	AMSC	Fri, Dec 23, 1994	245.00	255.00	245.00	255.00
651	NASDAQ	AMSC	Thu, Dec 22, 1994	245.00	255.00	245.00	245.00
650	NASDAQ	AMSC	Wed, Dec 21, 1994	245.00	255.00	245.00	245.00
649	NASDAQ	AMSC	Tue, Dec 20, 1994	255.00	255.00	245.00	245.00
648	NASDAQ	AMSC	Mon, Dec 19, 1994	245.00	255.00	245.00	252.50
647	NASDAQ	AMSC	Fri, Dec 16, 1994	245.00	255.00	238.75	255.00
646	NASDAQ	AMSC	Thu, Dec 15, 1994	237.50	245.00	237.50	245.00
645	NASDAQ	AMSC	Wed, Dec 14, 1994	232.50	245.00	232.50	245.00
644	NASDAQ	AMSC	Tue, Dec 13, 1994	227.50	237.50	227.50	237.50
643	NASDAQ	AMSC	Mon, Dec 12, 1994	225.00	232.50	225.00	230.00
642	NASDAQ	AMSC	Fri, Dec 9, 1994	230.00	233.75	225.00	232.50
641	NASDAQ	AMSC	Thu, Dec 8, 1994	242.50	242.50	232.50	237.50
640	NASDAQ	AMSC	Wed, Dec 7, 1994	235.00	242.50	235.00	242.50
639	NASDAQ	AMSC	Tue, Dec 6, 1994	235.00	242.50	235.00	242.50
638	NASDAQ	AMSC	Mon, Dec 5, 1994	235.00	242.50	227.50	235.00
637	NASDAQ	AMSC	Fri, Dec 2, 1994	225.00	235.00	225.00	235.00
636	NASDAQ	AMSC	Thu, Dec 1, 1994	235.00	235.00	225.00	227.50
635	NASDAQ	AMSC	Wed, Nov 30, 1994	225.00	235.00	225.00	228.75
634	NASDAQ	AMSC	Tue, Nov 29, 1994	220.00	230.00	220.00	230.00
633	NASDAQ	AMSC	Mon, Nov 28, 1994	223.34	223.34	220.01	220.84
632	NASDAQ	AMSC	Fri, Nov 25, 1994	223.34	223.34	223.34	223.34
631	NASDAQ	AMSC	Wed, Nov 23, 1994	220.01	231.68	216.68	221.68
630	NASDAQ	AMSC	Tue, Nov 22, 1994	226.68	235.01	225.01	230.01
629	NASDAQ	AMSC	Mon, Nov 21, 1994	233.35	235.01	225.01	226.68
628	NASDAQ	AMSC	Fri, Nov 18, 1994	225.01	233.35	225.01	233.35
627	NASDAQ	AMSC	Thu, Nov 17, 1994	233.35	233.35	225.01	225.01
626	NASDAQ	AMSC	Wed, Nov 16, 1994	226.68	233.35	223.34	230.01
625	NASDAQ	AMSC	Tue, Nov 15, 1994	233.35	233.35	221.68	221.68
624	NASDAQ	AMSC	Mon, Nov 14, 1994	225.01	233.35	221.68	221.68
623	NASDAQ	AMSC	Fri, Nov 11, 1994	226.68	233.35	223.34	233.35
622	NASDAQ	AMSC	Thu, Nov 10, 1994	231.68	233.35	223.34	230.01
621	NASDAQ	AMSC	Wed, Nov 9, 1994	221.68	231.68	221.68	221.68
620	NASDAQ	AMSC	Tue, Nov 8, 1994	223.34	231.68	221.68	221.68
619	NASDAQ	AMSC	Mon, Nov 7, 1994	226.68	231.68	221.68	231.68
618	NASDAQ	AMSC	Fri, Nov 4, 1994	231.68	231.68	221.68	226.68
617	NASDAQ	AMSC	Thu, Nov 3, 1994	225.01	231.68	225.01	226.68
616	NASDAQ	AMSC	Wed, Nov 2, 1994	227.51	231.68	225.01	225.01
615	NASDAQ	AMSC	Tue, Nov 1, 1994	225.01	231.68	224.18	225.01
614	NASDAQ	AMSC	Mon, Oct 31, 1994	221.68	231.68	221.68	225.01
613	NASDAQ	AMSC	Fri, Oct 28, 1994	221.68	230.01	221.68	226.68
612	NASDAQ	AMSC	Thu, Oct 27, 1994	220.01	230.01	220.01	230.01
611	NASDAQ	AMSC	Wed, Oct 26, 1994	220.01	230.01	220.01	230.01
610	NASDAQ	AMSC	Tue, Oct 25, 1994	221.68	231.68	220.01	231.68
609	NASDAQ	AMSC	Mon, Oct 24, 1994	231.68	231.68	223.34	223.34
608	NASDAQ	AMSC	Fri, Oct 21, 1994	223.34	226.68	223.34	223.34
607	NASDAQ	AMSC	Thu, Oct 20, 1994	223.34	231.68	223.34	223.34
606	NASDAQ	AMSC	Wed, Oct 19, 1994	221.68	231.68	221.68	231.68
605	NASDAQ	AMSC	Tue, Oct 18, 1994	226.68	233.35	220.01	223.34
604	NASDAQ	AMSC	Mon, Oct 17, 1994	223.34	226.68	220.01	226.68
603	NASDAQ	AMSC	Fri, Oct 14, 1994	223.34	223.34	218.34	223.34
602	NASDAQ	AMSC	Thu, Oct 13, 1994	216.68	221.68	213.34	221.68
601	NASDAQ	AMSC	Wed, Oct 12, 1994	213.34	216.68	213.34	213.76
600	NASDAQ	AMSC	Tue, Oct 11, 1994	213.34	216.68	208.34	216.68
599	NASDAQ	AMSC	Mon, Oct 10, 1994	213.34	213.34	206.68	213.34
598	NASDAQ	AMSC	Fri, Oct 7, 1994	205.01	206.68	205.01	206.68
597	NASDAQ	AMSC	Thu, Oct 6, 1994	205.01	205.01	205.01	205.01
596	NASDAQ	AMSC	Wed, Oct 5, 1994	205.01	205.01	205.01	205.01
595	NASDAQ	AMSC	Tue, Oct 4, 1994	205.01	205.01	205.01	205.01
594	NASDAQ	AMSC	Mon, Oct 3, 1994	205.01	210.01	205.01	206.68
593	NASDAQ	AMSC	Fri, Sep 30, 1994	196.68	215.01	196.68	215.01
592	NASDAQ	AMSC	Thu, Sep 29, 1994	196.68	201.68	194.18	196.68
591	NASDAQ	AMSC	Wed, Sep 28, 1994	196.68	196.68	196.68	196.68
590	NASDAQ	AMSC	Tue, Sep 27, 1994	196.68	203.34	196.68	196.68
589	NASDAQ	AMSC	Mon, Sep 26, 1994	196.68	203.34	196.68	196.68
588	NASDAQ	AMSC	Fri, Sep 23, 1994	203.34	203.34	196.68	196.68
587	NASDAQ	AMSC	Thu, Sep 22, 1994	196.68	203.34	196.68	203.34
586	NASDAQ	AMSC	Wed, Sep 21, 1994	198.34	203.34	196.68	196.68
585	NASDAQ	AMSC	Tue, Sep 20, 1994	196.68	200.01	196.68	197.51
584	NASDAQ	AMSC	Mon, Sep 19, 1994	203.34	203.34	196.68	196.68
583	NASDAQ	AMSC	Fri, Sep 16, 1994	203.34	203.34	196.68	197.51
582	NASDAQ	AMSC	Thu, Sep 15, 1994	196.68	203.34	196.68	203.34
581	NASDAQ	AMSC	Wed, Sep 14, 1994	196.68	197.51	196.68	196.68
580	NASDAQ	AMSC	Tue, Sep 13, 1994	203.34	203.34	196.68	197.09
579	NASDAQ	AMSC	Mon, Sep 12, 1994	200.01	206.68	198.34	198.34
578	NASDAQ	AMSC	Fri, Sep 9, 1994	200.01	200.01	200.01	200.01
577	NASDAQ	AMSC	Thu, Sep 8, 1994	200.01	213.34	200.01	200.01
576	NASDAQ	AMSC	Wed, Sep 7, 1994	205.01	213.34	200.01	206.68
575	NASDAQ	AMSC	Tue, Sep 6, 1994	213.34	213.34	205.01	205.01
574	NASDAQ	AMSC	Fri, Sep 2, 1994	203.34	213.34	196.68	213.34
573	NASDAQ	AMSC	Thu, Sep 1, 1994	205.01	205.01	196.68	203.34
572	NASDAQ	AMSC	Wed, Aug 31, 1994	193.34	205.01	193.34	203.34
571	NASDAQ	AMSC	Tue, Aug 30, 1994	188.34	200.01	188.34	200.01
570	NASDAQ	AMSC	Mon, Aug 29, 1994	191.68	191.68	186.68	191.68
569	NASDAQ	AMSC	Fri, Aug 26, 1994	181.68	195.01	181.68	195.01
568	NASDAQ	AMSC	Thu, Aug 25, 1994	181.68	191.68	181.68	181.68
567	NASDAQ	AMSC	Wed, Aug 24, 1994	182.51	191.68	181.68	181.68
566	NASDAQ	AMSC	Tue, Aug 23, 1994	181.68	191.68	181.68	191.68
565	NASDAQ	AMSC	Mon, Aug 22, 1994	181.68	186.68	181.68	186.68
564	NASDAQ	AMSC	Fri, Aug 19, 1994	190.01	191.68	180.01	191.68
563	NASDAQ	AMSC	Thu, Aug 18, 1994	173.34	188.34	173.34	188.34
562	NASDAQ	AMSC	Wed, Aug 17, 1994	170.01	173.34	165.01	173.34
561	NASDAQ	AMSC	Tue, Aug 16, 1994	168.34	170.01	165.01	165.01
560	NASDAQ	AMSC	Mon, Aug 15, 1994	170.01	170.01	170.01	170.01
559	NASDAQ	AMSC	Fri, Aug 12, 1994	170.01	175.01	170.01	175.01
558	NASDAQ	AMSC	Thu, Aug 11, 1994	171.68	175.01	168.34	175.01
557	NASDAQ	AMSC	Wed, Aug 10, 1994	175.01	175.01	170.01	170.01
556	NASDAQ	AMSC	Tue, Aug 9, 1994	166.68	175.01	166.68	173.34
555	NASDAQ	AMSC	Mon, Aug 8, 1994	175.01	175.01	166.68	166.68
554	NASDAQ	AMSC	Fri, Aug 5, 1994	175.01	175.01	166.68	175.01
553	NASDAQ	AMSC	Thu, Aug 4, 1994	175.01	175.01	170.01	171.68
552	NASDAQ	AMSC	Wed, Aug 3, 1994	173.34	175.01	166.68	166.68
551	NASDAQ	AMSC	Tue, Aug 2, 1994	171.68	171.68	168.34	168.34
550	NASDAQ	AMSC	Mon, Aug 1, 1994	173.34	180.01	171.68	173.34
549	NASDAQ	AMSC	Fri, Jul 29, 1994	176.68	180.01	171.68	180.01
548	NASDAQ	AMSC	Thu, Jul 28, 1994	173.34	180.01	173.34	173.34
547	NASDAQ	AMSC	Wed, Jul 27, 1994	175.01	175.01	175.01	175.01
546	NASDAQ	AMSC	Tue, Jul 26, 1994	178.34	183.34	174.18	175.01
545	NASDAQ	AMSC	Mon, Jul 25, 1994	178.76	178.76	178.76	178.76
544	NASDAQ	AMSC	Fri, Jul 22, 1994	180.01	188.34	178.34	188.34
543	NASDAQ	AMSC	Thu, Jul 21, 1994	180.01	186.68	180.01	181.68
542	NASDAQ	AMSC	Wed, Jul 20, 1994	188.34	188.34	180.01	180.01
541	NASDAQ	AMSC	Tue, Jul 19, 1994	186.68	186.68	181.68	181.68
540	NASDAQ	AMSC	Mon, Jul 18, 1994	186.68	186.68	181.68	186.68
539	NASDAQ	AMSC	Fri, Jul 15, 1994	183.34	183.34	176.68	183.34
538	NASDAQ	AMSC	Thu, Jul 14, 1994	176.68	183.34	176.68	176.68
537	NASDAQ	AMSC	Wed, Jul 13, 1994	180.01	180.01	175.01	176.68
536	NASDAQ	AMSC	Tue, Jul 12, 1994	166.68	178.34	165.84	173.34
535	NASDAQ	AMSC	Mon, Jul 11, 1994	170.01	173.34	166.68	170.01
534	NASDAQ	AMSC	Fri, Jul 8, 1994	168.34	173.34	166.68	173.34
533	NASDAQ	AMSC	Thu, Jul 7, 1994	167.51	173.34	165.01	166.68
532	NASDAQ	AMSC	Wed, Jul 6, 1994	168.34	168.34	163.34	168.34
531	NASDAQ	AMSC	Tue, Jul 5, 1994	166.68	170.01	163.34	163.34
530	NASDAQ	AMSC	Fri, Jul 1, 1994	168.34	173.34	166.68	173.34
529	NASDAQ	AMSC	Thu, Jun 30, 1994	171.68	176.68	166.68	173.34
528	NASDAQ	AMSC	Wed, Jun 29, 1994	171.68	176.68	170.01	170.01
527	NASDAQ	AMSC	Tue, Jun 28, 1994	176.68	176.68	170.01	176.68
526	NASDAQ	AMSC	Mon, Jun 27, 1994	173.34	176.68	170.01	176.68
525	NASDAQ	AMSC	Fri, Jun 24, 1994	173.34	180.01	166.68	173.34
524	NASDAQ	AMSC	Thu, Jun 23, 1994	196.68	196.68	173.34	173.34
523	NASDAQ	AMSC	Wed, Jun 22, 1994	196.68	196.68	186.68	191.68
522	NASDAQ	AMSC	Tue, Jun 21, 1994	198.34	200.01	190.01	193.34
521	NASDAQ	AMSC	Mon, Jun 20, 1994	205.01	205.01	196.68	200.01
520	NASDAQ	AMSC	Fri, Jun 17, 1994	203.34	206.68	195.01	206.68
519	NASDAQ	AMSC	Thu, Jun 16, 1994	193.34	203.34	193.34	194.18
518	NASDAQ	AMSC	Wed, Jun 15, 1994	196.68	196.68	193.34	194.18
517	NASDAQ	AMSC	Tue, Jun 14, 1994	193.34	203.34	193.34	193.34
516	NASDAQ	AMSC	Mon, Jun 13, 1994	195.01	203.34	193.34	203.34
515	NASDAQ	AMSC	Fri, Jun 10, 1994	193.34	203.34	193.34	196.68
514	NASDAQ	AMSC	Thu, Jun 9, 1994	195.01	203.34	193.34	203.34
513	NASDAQ	AMSC	Wed, Jun 8, 1994	193.34	203.34	193.34	203.34
512	NASDAQ	AMSC	Tue, Jun 7, 1994	194.18	203.34	193.34	203.34
511	NASDAQ	AMSC	Mon, Jun 6, 1994	193.34	193.34	193.34	193.34
510	NASDAQ	AMSC	Fri, Jun 3, 1994	193.34	203.34	193.34	200.01
509	NASDAQ	AMSC	Thu, Jun 2, 1994	198.34	203.34	193.34	203.34
508	NASDAQ	AMSC	Wed, Jun 1, 1994	193.34	206.68	193.34	198.34
507	NASDAQ	AMSC	Tue, May 31, 1994	200.01	203.34	196.68	203.34
506	NASDAQ	AMSC	Fri, May 27, 1994	203.34	203.34	193.34	200.01
505	NASDAQ	AMSC	Thu, May 26, 1994	210.84	211.68	200.01	211.68
504	NASDAQ	AMSC	Wed, May 25, 1994	212.51	215.01	210.01	210.01
503	NASDAQ	AMSC	Tue, May 24, 1994	215.01	215.01	208.34	215.01
502	NASDAQ	AMSC	Mon, May 23, 1994	205.01	215.01	205.01	215.01
501	NASDAQ	AMSC	Fri, May 20, 1994	200.01	213.34	198.34	213.34
500	NASDAQ	AMSC	Thu, May 19, 1994	200.01	200.01	195.01	198.34
499	NASDAQ	AMSC	Wed, May 18, 1994	200.01	200.01	191.68	200.01
498	NASDAQ	AMSC	Tue, May 17, 1994	198.34	200.01	190.01	200.01
497	NASDAQ	AMSC	Mon, May 16, 1994	198.34	200.01	190.01	198.34
496	NASDAQ	AMSC	Fri, May 13, 1994	198.34	198.34	198.34	198.34
495	NASDAQ	AMSC	Thu, May 12, 1994	208.34	208.34	198.34	198.34
494	NASDAQ	AMSC	Wed, May 11, 1994	201.68	211.68	199.59	200.01
493	NASDAQ	AMSC	Tue, May 10, 1994	213.34	213.34	201.68	211.68
492	NASDAQ	AMSC	Mon, May 9, 1994	208.34	213.34	196.68	213.34
491	NASDAQ	AMSC	Fri, May 6, 1994	216.68	221.68	210.01	221.68
490	NASDAQ	AMSC	Thu, May 5, 1994	210.01	225.01	210.01	223.34
489	NASDAQ	AMSC	Wed, May 4, 1994	201.68	210.01	200.01	206.68
488	NASDAQ	AMSC	Tue, May 3, 1994	203.34	203.34	195.01	201.68
487	NASDAQ	AMSC	Mon, May 2, 1994	200.01	203.34	193.34	203.34
486	NASDAQ	AMSC	Fri, Apr 29, 1994	200.01	200.01	193.34	200.01
485	NASDAQ	AMSC	Thu, Apr 28, 1994	178.34	206.68	178.34	190.01
484	NASDAQ	AMSC	Tue, Apr 26, 1994	181.68	181.68	178.34	179.18
483	NASDAQ	AMSC	Mon, Apr 25, 1994	183.34	183.34	178.34	181.68
482	NASDAQ	AMSC	Fri, Apr 22, 1994	191.68	191.68	180.01	183.34
481	NASDAQ	AMSC	Thu, Apr 21, 1994	190.01	191.68	186.68	186.68
480	NASDAQ	AMSC	Wed, Apr 20, 1994	195.01	195.01	186.68	186.68
479	NASDAQ	AMSC	Tue, Apr 19, 1994	201.68	205.01	191.68	191.68
478	NASDAQ	AMSC	Mon, Apr 18, 1994	211.68	215.01	201.68	205.01
477	NASDAQ	AMSC	Fri, Apr 15, 1994	213.34	220.01	211.68	211.68
476	NASDAQ	AMSC	Thu, Apr 14, 1994	220.01	220.01	213.34	213.34
475	NASDAQ	AMSC	Wed, Apr 13, 1994	215.01	223.34	213.34	220.01
474	NASDAQ	AMSC	Tue, Apr 12, 1994	216.68	225.01	215.01	215.01
473	NASDAQ	AMSC	Mon, Apr 11, 1994	216.68	226.68	216.68	219.18
472	NASDAQ	AMSC	Fri, Apr 8, 1994	216.68	226.68	216.68	220.01
471	NASDAQ	AMSC	Thu, Apr 7, 1994	226.68	226.68	216.68	226.68
470	NASDAQ	AMSC	Wed, Apr 6, 1994	226.68	226.68	216.68	226.68
469	NASDAQ	AMSC	Tue, Apr 5, 1994	226.68	226.68	216.68	226.68
468	NASDAQ	AMSC	Mon, Apr 4, 1994	220.01	231.68	216.68	226.68
467	NASDAQ	AMSC	Thu, Mar 31, 1994	225.01	231.68	220.01	231.68
466	NASDAQ	AMSC	Wed, Mar 30, 1994	235.01	235.01	225.01	225.01
465	NASDAQ	AMSC	Tue, Mar 29, 1994	240.01	240.01	231.68	238.35
464	NASDAQ	AMSC	Mon, Mar 28, 1994	241.68	241.68	233.35	240.01
463	NASDAQ	AMSC	Fri, Mar 25, 1994	241.68	241.68	233.35	241.68
462	NASDAQ	AMSC	Thu, Mar 24, 1994	236.68	241.68	233.35	241.68
461	NASDAQ	AMSC	Wed, Mar 23, 1994	243.35	243.35	236.68	240.01
460	NASDAQ	AMSC	Tue, Mar 22, 1994	243.35	248.35	238.35	238.35
459	NASDAQ	AMSC	Mon, Mar 21, 1994	250.01	261.68	245.01	248.35
458	NASDAQ	AMSC	Fri, Mar 18, 1994	260.01	260.01	250.01	251.68
457	NASDAQ	AMSC	Thu, Mar 17, 1994	246.68	260.01	246.68	260.01
456	NASDAQ	AMSC	Wed, Mar 16, 1994	233.35	248.35	233.35	246.68
455	NASDAQ	AMSC	Tue, Mar 15, 1994	220.01	233.35	216.68	233.35
454	NASDAQ	AMSC	Mon, Mar 14, 1994	218.34	220.01	208.34	220.01
453	NASDAQ	AMSC	Fri, Mar 11, 1994	213.34	220.01	206.68	210.01
452	NASDAQ	AMSC	Thu, Mar 10, 1994	211.68	211.68	206.68	211.68
451	NASDAQ	AMSC	Wed, Mar 9, 1994	213.34	213.34	206.68	211.68
450	NASDAQ	AMSC	Tue, Mar 8, 1994	210.01	215.01	201.68	213.34
449	NASDAQ	AMSC	Mon, Mar 7, 1994	205.01	210.01	200.01	201.68
448	NASDAQ	AMSC	Fri, Mar 4, 1994	205.01	205.01	196.68	205.01
447	NASDAQ	AMSC	Thu, Mar 3, 1994	198.34	205.01	196.68	205.01
446	NASDAQ	AMSC	Wed, Mar 2, 1994	196.68	205.01	196.68	205.01
445	NASDAQ	AMSC	Tue, Mar 1, 1994	195.01	205.01	195.01	205.01
444	NASDAQ	AMSC	Mon, Feb 28, 1994	205.01	205.01	195.01	205.01
443	NASDAQ	AMSC	Fri, Feb 25, 1994	195.01	205.01	195.01	205.01
442	NASDAQ	AMSC	Thu, Feb 24, 1994	195.01	205.01	195.01	205.01
441	NASDAQ	AMSC	Wed, Feb 23, 1994	195.84	205.01	195.01	201.68
440	NASDAQ	AMSC	Tue, Feb 22, 1994	195.01	206.68	195.01	206.68
439	NASDAQ	AMSC	Fri, Feb 18, 1994	206.68	206.68	195.01	206.68
438	NASDAQ	AMSC	Thu, Feb 17, 1994	198.34	206.68	195.01	195.01
437	NASDAQ	AMSC	Wed, Feb 16, 1994	200.01	203.34	198.34	199.18
436	NASDAQ	AMSC	Tue, Feb 15, 1994	200.01	208.34	200.01	203.34
435	NASDAQ	AMSC	Mon, Feb 14, 1994	208.34	208.34	201.68	208.34
434	NASDAQ	AMSC	Fri, Feb 11, 1994	200.01	210.01	200.01	203.34
433	NASDAQ	AMSC	Thu, Feb 10, 1994	201.68	210.01	201.68	210.01
432	NASDAQ	AMSC	Wed, Feb 9, 1994	210.01	210.01	200.01	210.01
431	NASDAQ	AMSC	Tue, Feb 8, 1994	200.01	210.01	198.34	200.01
430	NASDAQ	AMSC	Mon, Feb 7, 1994	208.34	210.01	196.68	210.01
429	NASDAQ	AMSC	Fri, Feb 4, 1994	221.68	223.34	203.34	213.34
428	NASDAQ	AMSC	Thu, Feb 3, 1994	211.68	221.68	211.68	221.68
427	NASDAQ	AMSC	Wed, Feb 2, 1994	213.34	217.51	210.01	216.68
426	NASDAQ	AMSC	Tue, Feb 1, 1994	203.34	216.68	203.34	216.68
425	NASDAQ	AMSC	Mon, Jan 31, 1994	210.01	213.34	203.34	213.34
424	NASDAQ	AMSC	Fri, Jan 28, 1994	208.34	210.01	200.01	210.01
423	NASDAQ	AMSC	Thu, Jan 27, 1994	195.01	208.34	195.01	208.34
422	NASDAQ	AMSC	Wed, Jan 26, 1994	210.01	213.34	193.34	201.68
421	NASDAQ	AMSC	Tue, Jan 25, 1994	213.34	216.68	210.01	210.01
420	NASDAQ	AMSC	Mon, Jan 24, 1994	215.01	223.34	215.01	215.01
419	NASDAQ	AMSC	Fri, Jan 21, 1994	215.01	223.34	215.01	223.34
418	NASDAQ	AMSC	Thu, Jan 20, 1994	216.68	228.34	216.68	223.34
417	NASDAQ	AMSC	Wed, Jan 19, 1994	228.34	228.34	216.68	216.68
416	NASDAQ	AMSC	Tue, Jan 18, 1994	218.34	228.34	218.34	228.34
415	NASDAQ	AMSC	Mon, Jan 17, 1994	220.01	228.34	220.01	228.34
414	NASDAQ	AMSC	Fri, Jan 14, 1994	228.34	228.34	213.34	228.34
413	NASDAQ	AMSC	Thu, Jan 13, 1994	226.68	233.35	220.01	226.68
412	NASDAQ	AMSC	Wed, Jan 12, 1994	226.68	240.01	226.68	240.01
411	NASDAQ	AMSC	Tue, Jan 11, 1994	233.35	233.35	226.68	229.18
410	NASDAQ	AMSC	Mon, Jan 10, 1994	227.51	238.35	226.68	226.68
409	NASDAQ	AMSC	Fri, Jan 7, 1994	226.68	238.35	226.68	238.35
408	NASDAQ	AMSC	Thu, Jan 6, 1994	226.68	238.35	226.68	238.35
407	NASDAQ	AMSC	Wed, Jan 5, 1994	226.68	240.01	216.68	240.01
406	NASDAQ	AMSC	Tue, Jan 4, 1994	240.01	240.01	226.68	240.01
405	NASDAQ	AMSC	Mon, Jan 3, 1994	240.01	240.01	226.68	240.01
404	NASDAQ	AMSC	Fri, Dec 31, 1993	228.34	240.01	218.34	240.01
403	NASDAQ	AMSC	Thu, Dec 30, 1993	220.01	228.34	213.34	228.34
402	NASDAQ	AMSC	Wed, Dec 29, 1993	213.34	220.01	213.34	220.01
401	NASDAQ	AMSC	Tue, Dec 28, 1993	211.68	220.01	211.68	211.68
400	NASDAQ	AMSC	Mon, Dec 27, 1993	211.68	220.01	208.34	220.01
399	NASDAQ	AMSC	Thu, Dec 23, 1993	211.68	220.01	211.68	220.01
398	NASDAQ	AMSC	Wed, Dec 22, 1993	220.01	220.01	211.68	211.68
397	NASDAQ	AMSC	Tue, Dec 21, 1993	216.68	223.34	213.34	220.01
396	NASDAQ	AMSC	Mon, Dec 20, 1993	216.68	220.01	216.68	216.68
395	NASDAQ	AMSC	Fri, Dec 17, 1993	216.68	220.01	216.68	220.01
394	NASDAQ	AMSC	Thu, Dec 16, 1993	216.68	223.34	216.68	220.01
393	NASDAQ	AMSC	Wed, Dec 15, 1993	220.01	220.01	216.68	216.68
392	NASDAQ	AMSC	Tue, Dec 14, 1993	218.34	223.34	216.68	216.68
391	NASDAQ	AMSC	Mon, Dec 13, 1993	220.01	226.68	218.34	218.34
390	NASDAQ	AMSC	Fri, Dec 10, 1993	220.01	228.34	220.01	226.68
389	NASDAQ	AMSC	Thu, Dec 9, 1993	220.01	228.34	220.01	228.34
388	NASDAQ	AMSC	Wed, Dec 8, 1993	220.01	231.68	220.01	228.34
387	NASDAQ	AMSC	Tue, Dec 7, 1993	226.68	231.68	220.01	226.68
386	NASDAQ	AMSC	Mon, Dec 6, 1993	213.34	228.34	213.34	226.68
385	NASDAQ	AMSC	Fri, Dec 3, 1993	198.34	206.68	183.34	206.68
384	NASDAQ	AMSC	Thu, Dec 2, 1993	198.34	198.34	190.01	198.34
383	NASDAQ	AMSC	Wed, Dec 1, 1993	198.34	198.34	190.01	193.34
382	NASDAQ	AMSC	Tue, Nov 30, 1993	193.34	200.01	183.34	198.34
381	NASDAQ	AMSC	Mon, Nov 29, 1993	175.84	193.34	173.34	191.68
380	NASDAQ	AMSC	Fri, Nov 26, 1993	173.34	176.68	173.34	176.68
379	NASDAQ	AMSC	Wed, Nov 24, 1993	173.34	176.68	173.34	175.01
378	NASDAQ	AMSC	Tue, Nov 23, 1993	173.34	173.34	173.34	173.34
377	NASDAQ	AMSC	Mon, Nov 22, 1993	175.01	176.68	173.34	173.34
376	NASDAQ	AMSC	Fri, Nov 19, 1993	175.01	176.68	175.01	175.01
375	NASDAQ	AMSC	Thu, Nov 18, 1993	175.01	176.68	175.01	175.84
374	NASDAQ	AMSC	Wed, Nov 17, 1993	175.01	176.68	175.01	176.68
373	NASDAQ	AMSC	Tue, Nov 16, 1993	176.68	176.68	173.34	175.84
372	NASDAQ	AMSC	Mon, Nov 15, 1993	171.68	175.01	171.68	175.01
371	NASDAQ	AMSC	Fri, Nov 12, 1993	170.01	171.68	170.01	171.68
370	NASDAQ	AMSC	Thu, Nov 11, 1993	168.34	173.34	168.34	173.34
369	NASDAQ	AMSC	Wed, Nov 10, 1993	173.34	173.34	168.34	170.84
368	NASDAQ	AMSC	Tue, Nov 9, 1993	166.68	171.68	165.01	170.01
367	NASDAQ	AMSC	Mon, Nov 8, 1993	153.34	173.34	153.34	171.68
366	NASDAQ	AMSC	Fri, Nov 5, 1993	160.01	165.01	150.01	165.01
365	NASDAQ	AMSC	Thu, Nov 4, 1993	160.01	161.67	160.01	160.01
364	NASDAQ	AMSC	Wed, Nov 3, 1993	168.34	168.34	161.67	161.67
363	NASDAQ	AMSC	Tue, Nov 2, 1993	161.67	168.34	161.67	164.17
362	NASDAQ	AMSC	Mon, Nov 1, 1993	166.68	168.34	161.67	168.34
361	NASDAQ	AMSC	Fri, Oct 29, 1993	166.68	168.34	161.67	168.34
360	NASDAQ	AMSC	Thu, Oct 28, 1993	168.34	173.34	158.34	160.01
359	NASDAQ	AMSC	Wed, Oct 27, 1993	168.34	176.68	168.34	176.68
358	NASDAQ	AMSC	Tue, Oct 26, 1993	168.34	176.68	168.34	176.68
357	NASDAQ	AMSC	Mon, Oct 25, 1993	171.68	178.34	171.68	171.68
356	NASDAQ	AMSC	Fri, Oct 22, 1993	171.68	178.34	171.68	178.34
355	NASDAQ	AMSC	Thu, Oct 21, 1993	171.68	178.34	171.68	178.34
354	NASDAQ	AMSC	Wed, Oct 20, 1993	178.34	178.34	171.68	171.68
353	NASDAQ	AMSC	Tue, Oct 19, 1993	178.34	179.18	170.01	173.34
352	NASDAQ	AMSC	Mon, Oct 18, 1993	170.01	178.34	170.01	178.34
351	NASDAQ	AMSC	Fri, Oct 15, 1993	170.01	178.34	170.01	178.34
350	NASDAQ	AMSC	Thu, Oct 14, 1993	178.34	178.34	178.34	178.34
349	NASDAQ	AMSC	Wed, Oct 13, 1993	170.01	178.34	170.01	178.34
348	NASDAQ	AMSC	Tue, Oct 12, 1993	173.34	173.34	170.01	171.68
347	NASDAQ	AMSC	Mon, Oct 11, 1993	178.34	178.34	171.68	171.68
346	NASDAQ	AMSC	Fri, Oct 8, 1993	171.68	178.34	171.68	178.34
345	NASDAQ	AMSC	Thu, Oct 7, 1993	171.68	178.34	171.68	178.34
344	NASDAQ	AMSC	Wed, Oct 6, 1993	171.68	178.34	171.68	171.68
343	NASDAQ	AMSC	Tue, Oct 5, 1993	171.68	171.68	171.68	171.68
342	NASDAQ	AMSC	Mon, Oct 4, 1993	170.01	178.34	170.01	176.68
341	NASDAQ	AMSC	Fri, Oct 1, 1993	178.34	178.34	170.01	178.34
340	NASDAQ	AMSC	Thu, Sep 30, 1993	168.34	178.34	168.34	178.34
339	NASDAQ	AMSC	Wed, Sep 29, 1993	168.34	168.34	168.34	168.34
338	NASDAQ	AMSC	Tue, Sep 28, 1993	178.34	178.34	168.34	168.34
337	NASDAQ	AMSC	Mon, Sep 27, 1993	168.34	171.68	168.34	168.34
336	NASDAQ	AMSC	Fri, Sep 24, 1993	168.34	178.34	168.34	178.34
335	NASDAQ	AMSC	Thu, Sep 23, 1993	178.34	178.34	168.34	168.34
334	NASDAQ	AMSC	Wed, Sep 22, 1993	168.34	178.34	168.34	178.34
333	NASDAQ	AMSC	Tue, Sep 21, 1993	168.34	176.68	168.34	168.34
332	NASDAQ	AMSC	Mon, Sep 20, 1993	173.34	173.34	168.34	173.34
331	NASDAQ	AMSC	Fri, Sep 17, 1993	170.01	175.01	168.34	175.01
330	NASDAQ	AMSC	Thu, Sep 16, 1993	168.34	168.34	168.34	168.34
329	NASDAQ	AMSC	Wed, Sep 15, 1993	168.34	176.68	168.34	168.34
328	NASDAQ	AMSC	Tue, Sep 14, 1993	168.34	168.34	168.34	168.34
327	NASDAQ	AMSC	Mon, Sep 13, 1993	173.34	176.68	168.34	168.34
326	NASDAQ	AMSC	Fri, Sep 10, 1993	168.34	173.34	168.34	173.34
325	NASDAQ	AMSC	Thu, Sep 9, 1993	171.68	176.68	170.01	170.01
324	NASDAQ	AMSC	Wed, Sep 8, 1993	171.68	176.68	171.68	171.68
323	NASDAQ	AMSC	Tue, Sep 7, 1993	171.68	176.68	171.68	176.68
322	NASDAQ	AMSC	Fri, Sep 3, 1993	171.68	176.68	171.68	172.51
321	NASDAQ	AMSC	Thu, Sep 2, 1993	170.01	176.68	170.01	176.68
320	NASDAQ	AMSC	Wed, Sep 1, 1993	176.68	176.68	170.01	170.01
319	NASDAQ	AMSC	Tue, Aug 31, 1993	170.01	176.68	170.01	176.68
318	NASDAQ	AMSC	Mon, Aug 30, 1993	173.34	180.01	170.01	170.01
317	NASDAQ	AMSC	Fri, Aug 27, 1993	175.01	179.18	175.01	178.34
316	NASDAQ	AMSC	Thu, Aug 26, 1993	176.68	183.34	175.01	183.34
315	NASDAQ	AMSC	Wed, Aug 25, 1993	175.01	175.01	175.01	175.01
314	NASDAQ	AMSC	Tue, Aug 24, 1993	181.68	183.34	175.01	178.34
313	NASDAQ	AMSC	Mon, Aug 23, 1993	178.34	181.68	175.01	175.01
312	NASDAQ	AMSC	Fri, Aug 20, 1993	181.68	181.68	175.84	180.01
311	NASDAQ	AMSC	Thu, Aug 19, 1993	175.01	181.68	175.01	178.34
310	NASDAQ	AMSC	Wed, Aug 18, 1993	171.68	181.68	168.34	178.34
309	NASDAQ	AMSC	Tue, Aug 17, 1993	166.68	171.68	166.68	171.68
308	NASDAQ	AMSC	Mon, Aug 16, 1993	165.01	170.01	165.01	165.01
307	NASDAQ	AMSC	Fri, Aug 13, 1993	168.34	170.01	165.01	167.51
306	NASDAQ	AMSC	Thu, Aug 12, 1993	165.01	170.01	165.01	165.01
305	NASDAQ	AMSC	Wed, Aug 11, 1993	165.84	170.01	165.01	165.01
304	NASDAQ	AMSC	Tue, Aug 10, 1993	170.01	170.01	163.34	166.68
303	NASDAQ	AMSC	Mon, Aug 9, 1993	166.68	170.01	163.34	163.34
302	NASDAQ	AMSC	Fri, Aug 6, 1993	165.01	170.01	165.01	166.68
301	NASDAQ	AMSC	Thu, Aug 5, 1993	170.01	170.01	160.01	168.34
300	NASDAQ	AMSC	Wed, Aug 4, 1993	168.34	170.01	163.34	170.01
299	NASDAQ	AMSC	Tue, Aug 3, 1993	170.01	170.01	160.01	160.01
298	NASDAQ	AMSC	Mon, Aug 2, 1993	170.01	170.01	158.34	170.01
297	NASDAQ	AMSC	Fri, Jul 30, 1993	166.68	168.34	160.01	166.68
296	NASDAQ	AMSC	Thu, Jul 29, 1993	166.68	166.68	166.68	166.68
295	NASDAQ	AMSC	Wed, Jul 28, 1993	160.01	166.68	160.01	166.68
294	NASDAQ	AMSC	Tue, Jul 27, 1993	166.68	166.68	158.34	166.68
293	NASDAQ	AMSC	Mon, Jul 26, 1993	168.34	168.34	158.34	158.34
292	NASDAQ	AMSC	Fri, Jul 23, 1993	160.01	165.01	153.34	165.01
291	NASDAQ	AMSC	Thu, Jul 22, 1993	150.01	158.34	150.01	155.01
290	NASDAQ	AMSC	Wed, Jul 21, 1993	150.01	160.01	150.01	153.34
289	NASDAQ	AMSC	Tue, Jul 20, 1993	150.01	151.67	148.34	150.01
288	NASDAQ	AMSC	Mon, Jul 19, 1993	150.01	156.67	150.01	153.34
287	NASDAQ	AMSC	Fri, Jul 16, 1993	150.01	156.67	150.01	156.67
286	NASDAQ	AMSC	Thu, Jul 15, 1993	150.84	156.67	150.01	150.01
285	NASDAQ	AMSC	Wed, Jul 14, 1993	150.01	156.67	150.01	156.67
284	NASDAQ	AMSC	Tue, Jul 13, 1993	156.67	156.67	150.01	156.67
283	NASDAQ	AMSC	Mon, Jul 12, 1993	150.01	153.34	150.01	150.01
282	NASDAQ	AMSC	Fri, Jul 9, 1993	150.01	153.34	150.01	152.51
281	NASDAQ	AMSC	Thu, Jul 8, 1993	150.01	155.01	150.01	155.01
280	NASDAQ	AMSC	Wed, Jul 7, 1993	163.34	163.34	150.01	153.34
279	NASDAQ	AMSC	Tue, Jul 6, 1993	156.67	163.34	156.67	163.34
278	NASDAQ	AMSC	Fri, Jul 2, 1993	156.67	161.67	156.67	161.67
277	NASDAQ	AMSC	Thu, Jul 1, 1993	165.01	165.01	160.01	160.01
276	NASDAQ	AMSC	Wed, Jun 30, 1993	163.34	165.01	156.67	165.01
275	NASDAQ	AMSC	Tue, Jun 29, 1993	158.34	158.34	156.67	156.67
274	NASDAQ	AMSC	Mon, Jun 28, 1993	158.34	158.34	158.34	158.34
273	NASDAQ	AMSC	Fri, Jun 25, 1993	166.68	166.68	158.34	158.34
272	NASDAQ	AMSC	Thu, Jun 24, 1993	160.01	160.01	160.01	160.01
271	NASDAQ	AMSC	Wed, Jun 23, 1993	160.01	163.34	160.01	160.01
270	NASDAQ	AMSC	Tue, Jun 22, 1993	160.01	161.67	160.01	160.01
269	NASDAQ	AMSC	Mon, Jun 21, 1993	160.01	166.68	160.01	163.34
268	NASDAQ	AMSC	Fri, Jun 18, 1993	161.67	166.68	160.01	160.84
267	NASDAQ	AMSC	Thu, Jun 17, 1993	160.01	166.68	160.01	163.34
266	NASDAQ	AMSC	Wed, Jun 16, 1993	160.01	163.34	160.01	160.84
265	NASDAQ	AMSC	Tue, Jun 15, 1993	168.34	168.34	160.01	163.34
264	NASDAQ	AMSC	Mon, Jun 14, 1993	168.34	168.34	160.01	160.84
263	NASDAQ	AMSC	Fri, Jun 11, 1993	165.01	168.34	160.01	168.34
262	NASDAQ	AMSC	Thu, Jun 10, 1993	168.34	168.34	160.01	161.67
261	NASDAQ	AMSC	Wed, Jun 9, 1993	163.34	166.68	160.01	160.01
260	NASDAQ	AMSC	Tue, Jun 8, 1993	165.01	166.68	163.34	166.68
259	NASDAQ	AMSC	Mon, Jun 7, 1993	163.34	171.68	163.34	171.68
258	NASDAQ	AMSC	Fri, Jun 4, 1993	171.68	171.68	163.34	170.01
257	NASDAQ	AMSC	Thu, Jun 3, 1993	171.68	171.68	163.34	165.01
256	NASDAQ	AMSC	Wed, Jun 2, 1993	173.34	173.34	163.34	163.34
255	NASDAQ	AMSC	Tue, Jun 1, 1993	163.34	173.34	163.34	173.34
254	NASDAQ	AMSC	Fri, May 28, 1993	175.01	175.01	165.01	165.01
253	NASDAQ	AMSC	Thu, May 27, 1993	166.68	175.01	165.01	175.01
252	NASDAQ	AMSC	Wed, May 26, 1993	176.68	183.34	166.68	166.68
251	NASDAQ	AMSC	Tue, May 25, 1993	176.68	183.34	176.68	180.01
250	NASDAQ	AMSC	Mon, May 24, 1993	176.68	178.34	176.68	178.34
249	NASDAQ	AMSC	Fri, May 21, 1993	170.01	185.01	165.01	185.01
248	NASDAQ	AMSC	Thu, May 20, 1993	173.34	173.34	165.01	165.01
247	NASDAQ	AMSC	Wed, May 19, 1993	173.34	173.34	166.68	173.34
246	NASDAQ	AMSC	Tue, May 18, 1993	168.34	173.34	166.68	168.34
245	NASDAQ	AMSC	Mon, May 17, 1993	171.68	171.68	165.01	171.68
244	NASDAQ	AMSC	Fri, May 14, 1993	171.68	171.68	165.01	166.68
243	NASDAQ	AMSC	Thu, May 13, 1993	171.68	171.68	165.01	165.01
242	NASDAQ	AMSC	Wed, May 12, 1993	178.34	178.34	165.01	170.01
241	NASDAQ	AMSC	Tue, May 11, 1993	170.01	183.34	161.67	178.34
240	NASDAQ	AMSC	Mon, May 10, 1993	166.68	166.68	160.01	166.68
239	NASDAQ	AMSC	Fri, May 7, 1993	165.01	166.68	153.34	163.34
238	NASDAQ	AMSC	Thu, May 6, 1993	156.67	165.01	154.17	156.67
237	NASDAQ	AMSC	Wed, May 5, 1993	148.34	158.34	146.67	151.67
236	NASDAQ	AMSC	Tue, May 4, 1993	148.34	158.34	148.34	158.34
235	NASDAQ	AMSC	Mon, May 3, 1993	156.67	158.34	148.34	158.34
234	NASDAQ	AMSC	Fri, Apr 30, 1993	156.67	156.67	143.34	156.67
233	NASDAQ	AMSC	Thu, Apr 29, 1993	146.67	155.01	143.34	155.01
232	NASDAQ	AMSC	Wed, Apr 28, 1993	146.67	146.67	140.01	146.67
231	NASDAQ	AMSC	Tue, Apr 27, 1993	145.01	146.67	136.67	146.67
230	NASDAQ	AMSC	Mon, Apr 26, 1993	145.01	145.01	145.01	145.01
229	NASDAQ	AMSC	Fri, Apr 23, 1993	145.01	145.01	133.34	141.67
228	NASDAQ	AMSC	Thu, Apr 22, 1993	145.01	145.01	133.34	139.17
227	NASDAQ	AMSC	Wed, Apr 21, 1993	133.34	145.01	133.34	145.01
226	NASDAQ	AMSC	Tue, Apr 20, 1993	145.01	145.01	133.34	133.34
225	NASDAQ	AMSC	Mon, Apr 19, 1993	133.34	145.01	133.34	145.01
224	NASDAQ	AMSC	Fri, Apr 16, 1993	136.67	140.84	136.67	140.01
223	NASDAQ	AMSC	Thu, Apr 15, 1993	136.67	143.34	131.67	137.51
222	NASDAQ	AMSC	Wed, Apr 14, 1993	130.01	136.67	130.01	136.67
221	NASDAQ	AMSC	Mon, Apr 12, 1993	138.34	138.34	131.67	138.34
220	NASDAQ	AMSC	Thu, Apr 8, 1993	126.67	140.01	126.67	138.34
219	NASDAQ	AMSC	Wed, Apr 7, 1993	133.34	133.34	126.67	126.67
218	NASDAQ	AMSC	Tue, Apr 6, 1993	126.67	133.34	126.67	126.67
217	NASDAQ	AMSC	Mon, Apr 5, 1993	128.34	133.34	126.67	126.67
216	NASDAQ	AMSC	Fri, Apr 2, 1993	128.34	133.34	128.34	128.34
215	NASDAQ	AMSC	Thu, Apr 1, 1993	128.34	128.34	128.34	128.34
214	NASDAQ	AMSC	Wed, Mar 31, 1993	131.67	133.34	128.34	133.34
213	NASDAQ	AMSC	Tue, Mar 30, 1993	131.67	135.01	131.67	135.01
212	NASDAQ	AMSC	Mon, Mar 29, 1993	135.01	135.01	130.01	133.34
211	NASDAQ	AMSC	Fri, Mar 26, 1993	130.01	135.01	130.01	135.01
210	NASDAQ	AMSC	Thu, Mar 25, 1993	133.34	133.34	130.01	133.34
209	NASDAQ	AMSC	Wed, Mar 24, 1993	133.34	135.01	130.01	130.84
208	NASDAQ	AMSC	Tue, Mar 23, 1993	133.34	135.01	125.01	134.17
207	NASDAQ	AMSC	Mon, Mar 22, 1993	140.01	145.01	128.34	133.34
206	NASDAQ	AMSC	Fri, Mar 19, 1993	143.34	143.34	140.01	140.84
205	NASDAQ	AMSC	Thu, Mar 18, 1993	143.34	143.34	140.01	140.01
204	NASDAQ	AMSC	Wed, Mar 17, 1993	143.34	143.34	140.01	140.01
203	NASDAQ	AMSC	Tue, Mar 16, 1993	140.01	141.67	140.01	140.01
202	NASDAQ	AMSC	Mon, Mar 15, 1993	146.67	146.67	140.01	143.34
201	NASDAQ	AMSC	Fri, Mar 12, 1993	140.01	146.67	140.01	146.67
200	NASDAQ	AMSC	Thu, Mar 11, 1993	143.34	143.34	140.01	143.34
199	NASDAQ	AMSC	Wed, Mar 10, 1993	140.01	143.34	140.01	143.34
198	NASDAQ	AMSC	Tue, Mar 9, 1993	146.67	146.67	140.01	140.01
197	NASDAQ	AMSC	Mon, Mar 8, 1993	146.67	146.67	140.01	146.67
196	NASDAQ	AMSC	Fri, Mar 5, 1993	143.34	146.67	141.67	141.67
195	NASDAQ	AMSC	Thu, Mar 4, 1993	148.34	148.34	148.34	148.34
194	NASDAQ	AMSC	Wed, Mar 3, 1993	148.34	148.34	143.34	143.34
193	NASDAQ	AMSC	Tue, Mar 2, 1993	143.34	148.34	140.84	148.34
192	NASDAQ	AMSC	Mon, Mar 1, 1993	143.34	143.34	138.34	138.34
191	NASDAQ	AMSC	Fri, Feb 26, 1993	143.34	143.34	138.34	143.34
190	NASDAQ	AMSC	Thu, Feb 25, 1993	146.67	146.67	138.34	138.34
189	NASDAQ	AMSC	Wed, Feb 24, 1993	135.01	143.34	125.01	143.34
188	NASDAQ	AMSC	Tue, Feb 23, 1993	126.67	135.01	125.01	135.01
187	NASDAQ	AMSC	Mon, Feb 22, 1993	136.67	136.67	130.01	135.01
186	NASDAQ	AMSC	Fri, Feb 19, 1993	131.67	138.34	131.67	138.34
185	NASDAQ	AMSC	Thu, Feb 18, 1993	133.34	133.34	131.67	131.67
184	NASDAQ	AMSC	Wed, Feb 17, 1993	130.01	138.34	128.34	136.67
183	NASDAQ	AMSC	Tue, Feb 16, 1993	140.01	146.67	131.67	133.34
182	NASDAQ	AMSC	Fri, Feb 12, 1993	141.67	146.67	141.67	145.84
181	NASDAQ	AMSC	Thu, Feb 11, 1993	143.34	153.34	138.34	143.34
180	NASDAQ	AMSC	Wed, Feb 10, 1993	138.34	143.34	138.34	143.34
179	NASDAQ	AMSC	Tue, Feb 9, 1993	138.34	143.34	138.34	138.34
178	NASDAQ	AMSC	Mon, Feb 8, 1993	143.34	143.34	138.34	142.51
177	NASDAQ	AMSC	Fri, Feb 5, 1993	136.67	143.34	136.67	143.34
176	NASDAQ	AMSC	Thu, Feb 4, 1993	135.01	143.34	135.01	138.34
175	NASDAQ	AMSC	Wed, Feb 3, 1993	135.01	140.01	135.01	139.17
174	NASDAQ	AMSC	Tue, Feb 2, 1993	138.34	140.01	135.01	136.67
173	NASDAQ	AMSC	Mon, Feb 1, 1993	140.01	140.01	135.01	140.01
172	NASDAQ	AMSC	Fri, Jan 29, 1993	140.01	140.01	136.67	140.01
171	NASDAQ	AMSC	Thu, Jan 28, 1993	135.01	145.01	135.01	135.84
170	NASDAQ	AMSC	Wed, Jan 27, 1993	145.01	145.01	135.01	145.01
169	NASDAQ	AMSC	Tue, Jan 26, 1993	145.01	145.01	135.01	145.01
168	NASDAQ	AMSC	Mon, Jan 25, 1993	135.01	145.01	135.01	135.84
167	NASDAQ	AMSC	Fri, Jan 22, 1993	145.01	145.01	135.01	143.34
166	NASDAQ	AMSC	Thu, Jan 21, 1993	133.34	145.01	133.34	139.17
165	NASDAQ	AMSC	Wed, Jan 20, 1993	135.01	140.84	130.01	140.84
164	NASDAQ	AMSC	Tue, Jan 19, 1993	132.51	136.67	132.51	136.67
163	NASDAQ	AMSC	Mon, Jan 18, 1993	126.67	136.67	126.67	136.67
162	NASDAQ	AMSC	Fri, Jan 15, 1993	136.67	136.67	126.67	126.67
161	NASDAQ	AMSC	Thu, Jan 14, 1993	136.67	136.67	126.67	126.67
160	NASDAQ	AMSC	Wed, Jan 13, 1993	138.34	138.34	129.17	136.67
159	NASDAQ	AMSC	Tue, Jan 12, 1993	130.01	138.34	126.67	138.34
158	NASDAQ	AMSC	Mon, Jan 11, 1993	126.67	138.34	126.67	130.01
157	NASDAQ	AMSC	Fri, Jan 8, 1993	138.34	143.34	126.67	126.67
156	NASDAQ	AMSC	Thu, Jan 7, 1993	146.67	146.67	138.34	146.67
155	NASDAQ	AMSC	Wed, Jan 6, 1993	136.67	146.67	136.67	142.51
154	NASDAQ	AMSC	Tue, Jan 5, 1993	131.67	146.67	130.01	146.67
153	NASDAQ	AMSC	Mon, Jan 4, 1993	131.67	135.01	118.34	135.01
152	NASDAQ	AMSC	Thu, Dec 31, 1992	136.67	136.67	130.01	133.34
151	NASDAQ	AMSC	Wed, Dec 30, 1992	131.67	136.67	123.34	136.67
150	NASDAQ	AMSC	Tue, Dec 29, 1992	126.67	131.67	122.51	131.67
149	NASDAQ	AMSC	Mon, Dec 28, 1992	126.67	126.67	123.34	126.67
148	NASDAQ	AMSC	Thu, Dec 24, 1992	125.01	128.34	123.34	123.34
147	NASDAQ	AMSC	Wed, Dec 23, 1992	120.01	125.01	116.67	123.34
146	NASDAQ	AMSC	Tue, Dec 22, 1992	121.67	121.67	113.34	113.34
145	NASDAQ	AMSC	Mon, Dec 21, 1992	121.67	121.67	113.34	113.34
144	NASDAQ	AMSC	Fri, Dec 18, 1992	116.67	121.67	111.67	118.34
143	NASDAQ	AMSC	Thu, Dec 17, 1992	113.34	113.34	110.01	110.01
142	NASDAQ	AMSC	Wed, Dec 16, 1992	116.67	116.67	110.01	113.34
141	NASDAQ	AMSC	Tue, Dec 15, 1992	110.01	116.67	110.01	110.01
140	NASDAQ	AMSC	Mon, Dec 14, 1992	110.01	116.67	110.01	111.67
139	NASDAQ	AMSC	Fri, Dec 11, 1992	110.01	115.01	110.01	111.67
138	NASDAQ	AMSC	Thu, Dec 10, 1992	115.01	115.01	110.01	111.67
137	NASDAQ	AMSC	Wed, Dec 9, 1992	110.01	115.01	110.01	110.01
136	NASDAQ	AMSC	Tue, Dec 8, 1992	116.67	116.67	113.34	113.34
135	NASDAQ	AMSC	Mon, Dec 7, 1992	115.01	116.67	113.34	115.84
134	NASDAQ	AMSC	Fri, Dec 4, 1992	113.34	121.67	106.67	113.34
133	NASDAQ	AMSC	Thu, Dec 3, 1992	120.01	121.67	113.34	121.67
132	NASDAQ	AMSC	Wed, Dec 2, 1992	121.67	121.67	110.01	120.01
131	NASDAQ	AMSC	Tue, Dec 1, 1992	121.67	121.67	115.01	116.67
130	NASDAQ	AMSC	Mon, Nov 30, 1992	121.67	121.67	115.01	121.67
129	NASDAQ	AMSC	Fri, Nov 27, 1992	121.67	121.67	115.01	115.01
128	NASDAQ	AMSC	Wed, Nov 25, 1992	121.67	121.67	115.01	121.67
127	NASDAQ	AMSC	Tue, Nov 24, 1992	116.67	121.67	116.67	116.67
126	NASDAQ	AMSC	Mon, Nov 23, 1992	118.34	121.67	116.67	116.67
125	NASDAQ	AMSC	Fri, Nov 20, 1992	116.67	121.67	116.67	121.67
124	NASDAQ	AMSC	Thu, Nov 19, 1992	121.67	121.67	116.67	121.67
123	NASDAQ	AMSC	Wed, Nov 18, 1992	121.67	121.67	116.67	121.67
122	NASDAQ	AMSC	Tue, Nov 17, 1992	121.67	121.67	115.01	121.67
121	NASDAQ	AMSC	Mon, Nov 16, 1992	121.67	121.67	121.67	121.67
120	NASDAQ	AMSC	Fri, Nov 13, 1992	119.17	121.67	115.01	121.67
119	NASDAQ	AMSC	Thu, Nov 12, 1992	121.67	121.67	113.34	116.67
118	NASDAQ	AMSC	Wed, Nov 11, 1992	121.67	121.67	113.34	116.67
117	NASDAQ	AMSC	Tue, Nov 10, 1992	121.67	131.67	116.67	121.67
116	NASDAQ	AMSC	Mon, Nov 9, 1992	120.01	126.67	111.67	126.67
115	NASDAQ	AMSC	Fri, Nov 6, 1992	118.34	120.01	107.51	120.01
114	NASDAQ	AMSC	Thu, Nov 5, 1992	118.34	118.34	110.01	118.34
113	NASDAQ	AMSC	Wed, Nov 4, 1992	113.34	118.34	106.67	118.34
112	NASDAQ	AMSC	Tue, Nov 3, 1992	113.34	113.34	103.34	113.34
111	NASDAQ	AMSC	Mon, Nov 2, 1992	113.34	113.34	105.01	113.34
110	NASDAQ	AMSC	Fri, Oct 30, 1992	113.34	113.34	105.01	113.34
109	NASDAQ	AMSC	Thu, Oct 29, 1992	113.34	113.34	108.34	113.34
108	NASDAQ	AMSC	Wed, Oct 28, 1992	113.34	113.34	105.01	113.34
107	NASDAQ	AMSC	Tue, Oct 27, 1992	116.67	116.67	106.67	113.34
106	NASDAQ	AMSC	Mon, Oct 26, 1992	116.67	116.67	108.34	114.17
105	NASDAQ	AMSC	Fri, Oct 23, 1992	105.01	116.67	98.34	116.67
104	NASDAQ	AMSC	Thu, Oct 22, 1992	101.67	105.01	96.67	98.34
103	NASDAQ	AMSC	Wed, Oct 21, 1992	101.67	101.67	96.67	96.67
102	NASDAQ	AMSC	Tue, Oct 20, 1992	101.67	101.67	93.34	100.01
101	NASDAQ	AMSC	Mon, Oct 19, 1992	95.00	101.67	91.67	95.00
100	NASDAQ	AMSC	Fri, Oct 16, 1992	90.00	95.00	90.00	93.34
99	NASDAQ	AMSC	Thu, Oct 15, 1992	95.00	95.00	88.34	95.00
98	NASDAQ	AMSC	Wed, Oct 14, 1992	95.00	95.00	91.67	95.00
97	NASDAQ	AMSC	Tue, Oct 13, 1992	95.00	95.00	95.00	95.00
96	NASDAQ	AMSC	Mon, Oct 12, 1992	95.00	95.00	88.34	88.34
95	NASDAQ	AMSC	Fri, Oct 9, 1992	90.00	95.00	87.50	95.00
94	NASDAQ	AMSC	Thu, Oct 8, 1992	86.67	93.34	85.00	91.67
93	NASDAQ	AMSC	Wed, Oct 7, 1992	80.00	90.00	80.00	85.00
92	NASDAQ	AMSC	Tue, Oct 6, 1992	81.67	86.67	81.67	83.34
91	NASDAQ	AMSC	Mon, Oct 5, 1992	88.34	90.00	80.00	86.67
90	NASDAQ	AMSC	Fri, Oct 2, 1992	88.34	98.34	88.34	88.34
89	NASDAQ	AMSC	Thu, Oct 1, 1992	96.67	96.67	86.67	93.34
88	NASDAQ	AMSC	Wed, Sep 30, 1992	86.67	86.67	86.67	86.67
87	NASDAQ	AMSC	Tue, Sep 29, 1992	98.34	98.34	86.67	91.67
86	NASDAQ	AMSC	Mon, Sep 28, 1992	90.00	95.00	86.67	91.67
85	NASDAQ	AMSC	Fri, Sep 25, 1992	96.67	103.34	90.00	98.34
84	NASDAQ	AMSC	Thu, Sep 24, 1992	96.67	103.34	96.67	99.17
83	NASDAQ	AMSC	Wed, Sep 23, 1992	96.67	103.34	96.67	103.34
82	NASDAQ	AMSC	Tue, Sep 22, 1992	100.01	101.67	95.00	100.01
81	NASDAQ	AMSC	Mon, Sep 21, 1992	103.34	103.34	103.34	103.34
80	NASDAQ	AMSC	Fri, Sep 18, 1992	105.01	105.01	100.01	100.01
79	NASDAQ	AMSC	Thu, Sep 17, 1992	100.01	105.01	100.01	105.01
78	NASDAQ	AMSC	Wed, Sep 16, 1992	106.67	106.67	100.01	100.84
77	NASDAQ	AMSC	Tue, Sep 15, 1992	100.01	100.01	100.01	100.01
76	NASDAQ	AMSC	Mon, Sep 14, 1992	105.01	106.67	100.01	100.84
75	NASDAQ	AMSC	Fri, Sep 11, 1992	100.01	100.01	100.01	100.01
74	NASDAQ	AMSC	Thu, Sep 10, 1992	100.01	101.67	100.01	100.84
73	NASDAQ	AMSC	Wed, Sep 9, 1992	101.67	105.01	100.01	103.34
72	NASDAQ	AMSC	Tue, Sep 8, 1992	101.67	106.67	101.67	106.67
71	NASDAQ	AMSC	Fri, Sep 4, 1992	101.67	102.51	101.67	102.51
70	NASDAQ	AMSC	Thu, Sep 3, 1992	102.51	106.67	101.67	102.51
69	NASDAQ	AMSC	Tue, Sep 1, 1992	105.84	105.84	105.84	105.84
68	NASDAQ	AMSC	Mon, Aug 31, 1992	100.01	106.67	100.01	106.67
67	NASDAQ	AMSC	Fri, Aug 28, 1992	100.01	103.34	100.01	103.34
66	NASDAQ	AMSC	Thu, Aug 27, 1992	106.67	106.67	100.01	100.01
65	NASDAQ	AMSC	Wed, Aug 26, 1992	106.67	106.67	100.01	102.51
64	NASDAQ	AMSC	Tue, Aug 25, 1992	108.34	108.34	98.34	101.67
63	NASDAQ	AMSC	Mon, Aug 24, 1992	100.01	101.67	100.01	101.67
62	NASDAQ	AMSC	Fri, Aug 21, 1992	108.34	108.34	100.01	105.01
61	NASDAQ	AMSC	Thu, Aug 20, 1992	100.01	108.34	100.01	108.34
60	NASDAQ	AMSC	Wed, Aug 19, 1992	105.01	106.67	100.01	100.01
59	NASDAQ	AMSC	Tue, Aug 18, 1992	108.34	108.34	108.34	108.34
58	NASDAQ	AMSC	Mon, Aug 17, 1992	110.01	110.01	101.67	101.67
57	NASDAQ	AMSC	Fri, Aug 14, 1992	100.01	110.01	100.01	110.01
56	NASDAQ	AMSC	Thu, Aug 13, 1992	105.01	110.01	100.01	101.67
55	NASDAQ	AMSC	Wed, Aug 12, 1992	111.67	113.34	110.01	111.67
54	NASDAQ	AMSC	Tue, Aug 11, 1992	120.01	120.01	113.34	113.34
53	NASDAQ	AMSC	Mon, Aug 10, 1992	121.67	121.67	116.67	116.67
52	NASDAQ	AMSC	Fri, Aug 7, 1992	123.34	123.34	116.67	121.67
51	NASDAQ	AMSC	Thu, Aug 6, 1992	120.01	121.67	116.67	121.67
50	NASDAQ	AMSC	Wed, Aug 5, 1992	123.34	123.34	116.67	117.51
49	NASDAQ	AMSC	Tue, Aug 4, 1992	118.34	121.67	118.34	118.34
48	NASDAQ	AMSC	Mon, Aug 3, 1992	118.34	121.67	118.34	120.01
47	NASDAQ	AMSC	Fri, Jul 31, 1992	118.34	121.67	118.34	121.67
46	NASDAQ	AMSC	Thu, Jul 30, 1992	128.34	128.34	118.34	119.17
45	NASDAQ	AMSC	Wed, Jul 29, 1992	128.34	130.01	121.67	126.67
44	NASDAQ	AMSC	Tue, Jul 28, 1992	111.67	128.34	111.67	125.01
43	NASDAQ	AMSC	Mon, Jul 27, 1992	110.01	118.34	106.67	118.34
42	NASDAQ	AMSC	Fri, Jul 24, 1992	105.01	110.01	100.01	108.34
41	NASDAQ	AMSC	Thu, Jul 23, 1992	105.01	105.01	98.34	100.84
40	NASDAQ	AMSC	Wed, Jul 22, 1992	105.01	105.01	105.01	105.01
39	NASDAQ	AMSC	Tue, Jul 21, 1992	105.01	105.01	96.67	104.17
38	NASDAQ	AMSC	Mon, Jul 20, 1992	105.01	105.01	96.67	105.01
37	NASDAQ	AMSC	Fri, Jul 17, 1992	101.67	106.67	100.01	103.34
36	NASDAQ	AMSC	Thu, Jul 16, 1992	100.01	106.67	100.01	106.67
35	NASDAQ	AMSC	Wed, Jul 15, 1992	106.67	106.67	100.01	105.01
34	NASDAQ	AMSC	Tue, Jul 14, 1992	100.01	106.67	100.01	106.67
33	NASDAQ	AMSC	Mon, Jul 13, 1992	106.67	106.67	104.17	106.67
32	NASDAQ	AMSC	Fri, Jul 10, 1992	106.67	106.67	103.34	106.67
31	NASDAQ	AMSC	Thu, Jul 9, 1992	106.67	106.67	103.34	106.67
30	NASDAQ	AMSC	Wed, Jul 8, 1992	108.34	108.34	103.34	106.67
29	NASDAQ	AMSC	Tue, Jul 7, 1992	102.51	108.34	102.51	108.34
28	NASDAQ	AMSC	Mon, Jul 6, 1992	101.67	108.34	101.67	101.67
27	NASDAQ	AMSC	Thu, Jul 2, 1992	108.34	108.34	103.34	103.34
26	NASDAQ	AMSC	Wed, Jul 1, 1992	111.67	111.67	101.67	106.67
25	NASDAQ	AMSC	Tue, Jun 30, 1992	103.34	113.34	101.67	113.34
24	NASDAQ	AMSC	Mon, Jun 29, 1992	103.34	103.34	100.01	102.51
23	NASDAQ	AMSC	Fri, Jun 26, 1992	96.67	103.34	96.67	103.34
22	NASDAQ	AMSC	Thu, Jun 25, 1992	101.67	101.67	91.67	100.84
21	NASDAQ	AMSC	Wed, Jun 24, 1992	93.34	101.67	93.34	101.67
20	NASDAQ	AMSC	Tue, Jun 23, 1992	96.67	98.34	90.00	98.34
19	NASDAQ	AMSC	Mon, Jun 22, 1992	101.67	101.67	101.67	101.67
18	NASDAQ	AMSC	Fri, Jun 19, 1992	91.67	100.01	90.00	100.01
17	NASDAQ	AMSC	Thu, Jun 18, 1992	101.67	101.67	100.01	101.67
16	NASDAQ	AMSC	Wed, Jun 17, 1992	103.34	105.01	95.84	101.67
15	NASDAQ	AMSC	Tue, Jun 16, 1992	100.01	103.34	98.34	103.34
14	NASDAQ	AMSC	Mon, Jun 15, 1992	100.01	100.01	95.00	96.67
13	NASDAQ	AMSC	Fri, Jun 12, 1992	98.34	100.01	93.34	100.01
12	NASDAQ	AMSC	Thu, Jun 11, 1992	100.01	100.01	91.67	95.00
11	NASDAQ	AMSC	Wed, Jun 10, 1992	98.34	100.01	95.00	100.01
10	NASDAQ	AMSC	Tue, Jun 9, 1992	101.67	101.67	90.00	96.67
9	NASDAQ	AMSC	Mon, Jun 8, 1992	105.01	105.01	93.34	101.67
8	NASDAQ	AMSC	Fri, Jun 5, 1992	95.00	108.34	92.50	97.50
7	NASDAQ	AMSC	Thu, Jun 4, 1992	90.00	95.00	90.00	95.00
6	NASDAQ	AMSC	Wed, Jun 3, 1992	91.67	93.34	91.67	93.34
5	NASDAQ	AMSC	Tue, Jun 2, 1992	92.50	93.34	88.34	93.34
4	NASDAQ	AMSC	Mon, Jun 1, 1992	95.00	95.00	91.67	93.34
3	NASDAQ	AMSC	Fri, May 29, 1992	83.34	91.67	83.34	86.67
2	NASDAQ	AMSC	Thu, May 28, 1992	90.00	90.00	81.67	86.67
1	NASDAQ	AMSC	Wed, May 27, 1992	88.34	93.34	88.34	90.84
#	Exchange	Symbol	Date	Open	High	Low	Close

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