CECO Environmental Corp NASDAQ:CECO Historical Prices

Below are the 7501 trading days of historical prices for CECO.

#	Exchange	Symbol	Date	Open	High	Low	Close
7501	NASDAQ	CECO	Wed, Mar 6, 2024	19.43	20.44	19.15	20.15
7500	NASDAQ	CECO	Tue, Mar 5, 2024	24.10	24.43	18.50	18.81
7499	NASDAQ	CECO	Mon, Mar 4, 2024	23.49	23.69	22.75	22.91
7498	NASDAQ	CECO	Fri, Mar 1, 2024	22.61	23.29	22.23	23.21
7497	NASDAQ	CECO	Thu, Feb 29, 2024	22.60	22.90	22.35	22.65
7496	NASDAQ	CECO	Wed, Feb 28, 2024	21.65	22.64	21.52	22.29
7495	NASDAQ	CECO	Tue, Feb 27, 2024	21.72	22.06	21.34	21.86
7494	NASDAQ	CECO	Mon, Feb 26, 2024	20.52	21.71	20.52	21.42
7493	NASDAQ	CECO	Fri, Feb 23, 2024	20.24	21.46	20.22	20.59
7492	NASDAQ	CECO	Thu, Feb 22, 2024	20.50	20.71	20.18	20.34
7491	NASDAQ	CECO	Wed, Feb 21, 2024	20.13	20.57	20.13	20.50
7490	NASDAQ	CECO	Tue, Feb 20, 2024	20.53	20.69	20.22	20.24
7489	NASDAQ	CECO	Fri, Feb 16, 2024	21.05	21.07	20.65	20.77
7488	NASDAQ	CECO	Thu, Feb 15, 2024	20.92	21.07	20.61	21.07
7487	NASDAQ	CECO	Wed, Feb 14, 2024	19.54	20.80	19.54	20.80
7486	NASDAQ	CECO	Tue, Feb 13, 2024	19.88	20.00	19.26	19.30
7485	NASDAQ	CECO	Mon, Feb 12, 2024	20.35	20.58	20.28	20.29
7484	NASDAQ	CECO	Fri, Feb 9, 2024	20.13	20.35	19.96	20.26
7483	NASDAQ	CECO	Thu, Feb 8, 2024	19.48	20.15	19.48	20.07
7482	NASDAQ	CECO	Wed, Feb 7, 2024	19.67	19.72	19.42	19.50
7481	NASDAQ	CECO	Tue, Feb 6, 2024	19.69	19.85	19.44	19.70
7480	NASDAQ	CECO	Mon, Feb 5, 2024	19.42	19.93	19.26	19.76
7479	NASDAQ	CECO	Fri, Feb 2, 2024	19.38	19.90	19.26	19.63
7478	NASDAQ	CECO	Thu, Feb 1, 2024	19.36	19.61	19.20	19.48
7477	NASDAQ	CECO	Wed, Jan 31, 2024	19.83	19.90	19.32	19.33
7476	NASDAQ	CECO	Tue, Jan 30, 2024	19.81	20.01	19.62	19.92
7475	NASDAQ	CECO	Mon, Jan 29, 2024	19.20	19.77	19.08	19.75
7474	NASDAQ	CECO	Fri, Jan 26, 2024	19.60	19.73	19.22	19.27
7473	NASDAQ	CECO	Thu, Jan 25, 2024	19.52	19.59	19.28	19.45
7472	NASDAQ	CECO	Wed, Jan 24, 2024	19.83	19.96	19.22	19.32
7471	NASDAQ	CECO	Tue, Jan 23, 2024	19.40	19.67	19.04	19.51
7470	NASDAQ	CECO	Mon, Jan 22, 2024	19.04	19.45	18.99	19.31
7469	NASDAQ	CECO	Fri, Jan 19, 2024	19.20	19.27	18.73	18.89
7468	NASDAQ	CECO	Thu, Jan 18, 2024	19.09	19.21	18.87	19.12
7467	NASDAQ	CECO	Wed, Jan 17, 2024	18.84	19.44	18.78	19.08
7466	NASDAQ	CECO	Tue, Jan 16, 2024	18.97	19.02	18.67	18.73
7465	NASDAQ	CECO	Fri, Jan 12, 2024	19.31	19.35	18.94	19.07
7464	NASDAQ	CECO	Thu, Jan 11, 2024	19.44	19.50	18.72	19.10
7463	NASDAQ	CECO	Wed, Jan 10, 2024	19.00	19.53	18.83	19.52
7462	NASDAQ	CECO	Tue, Jan 9, 2024	19.28	19.28	18.82	19.04
7461	NASDAQ	CECO	Mon, Jan 8, 2024	19.40	19.65	19.21	19.38
7460	NASDAQ	CECO	Fri, Jan 5, 2024	19.49	19.84	19.24	19.40
7459	NASDAQ	CECO	Thu, Jan 4, 2024	19.30	19.68	19.20	19.51
7458	NASDAQ	CECO	Wed, Jan 3, 2024	19.88	19.89	19.01	19.19
7457	NASDAQ	CECO	Tue, Jan 2, 2024	20.10	20.26	19.77	19.99
7456	NASDAQ	CECO	Fri, Dec 29, 2023	20.55	20.63	20.20	20.28
7455	NASDAQ	CECO	Thu, Dec 28, 2023	20.62	20.75	20.00	20.48
7454	NASDAQ	CECO	Wed, Dec 27, 2023	20.73	21.00	20.73	20.80
7453	NASDAQ	CECO	Tue, Dec 26, 2023	21.01	21.08	20.68	20.81
7452	NASDAQ	CECO	Fri, Dec 22, 2023	21.32	21.32	20.84	21.01
7451	NASDAQ	CECO	Thu, Dec 21, 2023	20.78	21.22	20.70	21.12
7450	NASDAQ	CECO	Wed, Dec 20, 2023	20.96	21.43	20.56	20.73
7449	NASDAQ	CECO	Tue, Dec 19, 2023	20.73	21.41	20.62	21.04
7448	NASDAQ	CECO	Mon, Dec 18, 2023	20.18	20.71	20.09	20.58
7447	NASDAQ	CECO	Fri, Dec 15, 2023	20.24	20.25	19.72	20.17
7446	NASDAQ	CECO	Thu, Dec 14, 2023	20.20	20.73	19.70	19.98
7445	NASDAQ	CECO	Wed, Dec 13, 2023	19.70	19.99	19.36	19.99
7444	NASDAQ	CECO	Tue, Dec 12, 2023	20.00	20.10	19.61	19.79
7443	NASDAQ	CECO	Mon, Dec 11, 2023	19.70	20.14	19.70	19.91
7442	NASDAQ	CECO	Fri, Dec 8, 2023	19.49	19.86	19.32	19.66
7441	NASDAQ	CECO	Thu, Dec 7, 2023	19.45	19.62	19.16	19.55
7440	NASDAQ	CECO	Wed, Dec 6, 2023	19.85	20.10	19.40	19.45
7439	NASDAQ	CECO	Tue, Dec 5, 2023	19.81	20.00	19.53	19.70
7438	NASDAQ	CECO	Mon, Dec 4, 2023	19.47	20.00	19.46	19.97
7437	NASDAQ	CECO	Fri, Dec 1, 2023	19.22	19.95	19.22	19.64
7436	NASDAQ	CECO	Thu, Nov 30, 2023	19.49	19.55	19.08	19.25
7435	NASDAQ	CECO	Wed, Nov 29, 2023	19.52	19.71	19.04	19.26
7434	NASDAQ	CECO	Tue, Nov 28, 2023	20.14	20.14	19.23	19.45
7433	NASDAQ	CECO	Mon, Nov 27, 2023	20.05	20.75	20.00	20.18
7432	NASDAQ	CECO	Fri, Nov 24, 2023	19.96	20.12	19.76	19.92
7431	NASDAQ	CECO	Wed, Nov 22, 2023	19.99	20.00	19.59	19.91
7430	NASDAQ	CECO	Tue, Nov 21, 2023	19.34	20.13	19.27	19.94
7429	NASDAQ	CECO	Mon, Nov 20, 2023	19.37	19.87	19.15	19.33
7428	NASDAQ	CECO	Fri, Nov 17, 2023	19.64	20.03	19.12	19.32
7427	NASDAQ	CECO	Thu, Nov 16, 2023	19.71	19.71	19.28	19.47
7426	NASDAQ	CECO	Wed, Nov 15, 2023	20.14	20.41	19.56	19.63
7425	NASDAQ	CECO	Tue, Nov 14, 2023	19.23	20.23	19.18	20.08
7424	NASDAQ	CECO	Mon, Nov 13, 2023	19.33	19.39	18.90	19.24
7423	NASDAQ	CECO	Fri, Nov 10, 2023	19.04	19.91	18.94	19.47
7422	NASDAQ	CECO	Thu, Nov 9, 2023	17.63	18.98	17.50	18.95
7421	NASDAQ	CECO	Wed, Nov 8, 2023	18.99	18.99	17.35	17.39
7420	NASDAQ	CECO	Tue, Nov 7, 2023	17.15	19.00	17.15	18.37
7419	NASDAQ	CECO	Mon, Nov 6, 2023	15.99	16.78	15.99	16.56
7418	NASDAQ	CECO	Fri, Nov 3, 2023	16.14	16.29	15.95	16.05
7417	NASDAQ	CECO	Thu, Nov 2, 2023	16.11	16.33	15.65	15.79
7416	NASDAQ	CECO	Wed, Nov 1, 2023	16.10	16.12	15.71	15.91
7415	NASDAQ	CECO	Tue, Oct 31, 2023	15.77	16.26	15.69	16.18
7414	NASDAQ	CECO	Mon, Oct 30, 2023	15.87	16.02	15.57	15.79
7413	NASDAQ	CECO	Fri, Oct 27, 2023	16.11	16.11	15.60	15.66
7412	NASDAQ	CECO	Thu, Oct 26, 2023	15.89	16.40	15.89	16.12
7411	NASDAQ	CECO	Wed, Oct 25, 2023	15.47	15.96	15.36	15.93
7410	NASDAQ	CECO	Tue, Oct 24, 2023	15.53	15.66	15.27	15.53
7409	NASDAQ	CECO	Mon, Oct 23, 2023	15.60	15.81	15.42	15.47
7408	NASDAQ	CECO	Fri, Oct 20, 2023	15.82	15.84	15.49	15.75
7407	NASDAQ	CECO	Thu, Oct 19, 2023	15.84	16.09	15.68	15.79
7406	NASDAQ	CECO	Wed, Oct 18, 2023	16.33	16.40	15.93	15.94
7405	NASDAQ	CECO	Tue, Oct 17, 2023	15.87	16.78	15.70	16.51
7404	NASDAQ	CECO	Mon, Oct 16, 2023	16.23	16.23	15.81	16.04
7403	NASDAQ	CECO	Fri, Oct 13, 2023	16.41	16.98	15.80	16.00
7402	NASDAQ	CECO	Thu, Oct 12, 2023	16.45	16.54	16.09	16.30
7401	NASDAQ	CECO	Wed, Oct 11, 2023	16.24	16.56	16.21	16.50
7400	NASDAQ	CECO	Tue, Oct 10, 2023	16.35	16.56	16.15	16.16
7399	NASDAQ	CECO	Mon, Oct 9, 2023	15.72	16.38	15.61	16.25
7398	NASDAQ	CECO	Fri, Oct 6, 2023	15.53	15.89	15.39	15.74
7397	NASDAQ	CECO	Thu, Oct 5, 2023	15.60	15.81	15.48	15.64
7396	NASDAQ	CECO	Wed, Oct 4, 2023	15.48	15.69	15.34	15.68
7395	NASDAQ	CECO	Tue, Oct 3, 2023	15.81	15.91	15.31	15.50
7394	NASDAQ	CECO	Mon, Oct 2, 2023	15.94	16.24	15.80	15.88
7393	NASDAQ	CECO	Fri, Sep 29, 2023	16.25	16.36	15.81	15.97
7392	NASDAQ	CECO	Thu, Sep 28, 2023	16.07	16.25	15.86	16.17
7391	NASDAQ	CECO	Wed, Sep 27, 2023	15.87	16.14	15.86	16.06
7390	NASDAQ	CECO	Tue, Sep 26, 2023	16.36	16.56	15.65	15.71
7389	NASDAQ	CECO	Mon, Sep 25, 2023	16.37	16.63	16.23	16.53
7388	NASDAQ	CECO	Fri, Sep 22, 2023	16.08	16.52	15.97	16.45
7387	NASDAQ	CECO	Thu, Sep 21, 2023	15.85	16.13	15.59	16.06
7386	NASDAQ	CECO	Wed, Sep 20, 2023	16.30	16.48	15.92	16.00
7385	NASDAQ	CECO	Tue, Sep 19, 2023	16.63	16.63	16.05	16.21
7384	NASDAQ	CECO	Mon, Sep 18, 2023	15.90	16.45	15.90	16.22
7383	NASDAQ	CECO	Fri, Sep 15, 2023	15.77	15.98	15.37	15.97
7382	NASDAQ	CECO	Thu, Sep 14, 2023	14.94	16.00	14.81	15.82
7381	NASDAQ	CECO	Wed, Sep 13, 2023	14.80	15.18	14.23	14.46
7380	NASDAQ	CECO	Tue, Sep 12, 2023	14.33	14.73	14.33	14.38
7379	NASDAQ	CECO	Mon, Sep 11, 2023	14.50	14.50	14.50	14.50
7378	NASDAQ	CECO	Fri, Sep 8, 2023	13.95	13.96	13.59	13.74
7377	NASDAQ	CECO	Thu, Sep 7, 2023	13.67	14.02	13.37	13.85
7376	NASDAQ	CECO	Wed, Sep 6, 2023	13.87	14.03	13.41	13.74
7375	NASDAQ	CECO	Tue, Sep 5, 2023	13.96	13.96	13.69	13.84
7374	NASDAQ	CECO	Fri, Sep 1, 2023	13.89	14.18	13.87	13.97
7373	NASDAQ	CECO	Thu, Aug 31, 2023	13.47	13.85	13.24	13.78
7372	NASDAQ	CECO	Wed, Aug 30, 2023	13.13	13.45	13.13	13.33
7371	NASDAQ	CECO	Tue, Aug 29, 2023	12.94	13.23	12.80	13.12
7370	NASDAQ	CECO	Mon, Aug 28, 2023	13.02	13.38	12.71	12.98
7369	NASDAQ	CECO	Fri, Aug 25, 2023	12.86	12.96	12.55	12.92
7368	NASDAQ	CECO	Thu, Aug 24, 2023	13.10	13.31	12.79	12.81
7367	NASDAQ	CECO	Wed, Aug 23, 2023	12.88	13.21	12.80	13.19
7366	NASDAQ	CECO	Tue, Aug 22, 2023	13.03	13.21	12.79	12.83
7365	NASDAQ	CECO	Mon, Aug 21, 2023	13.19	13.51	13.03	13.05
7364	NASDAQ	CECO	Fri, Aug 18, 2023	13.00	13.27	12.75	13.17
7363	NASDAQ	CECO	Thu, Aug 17, 2023	13.26	13.56	12.97	13.15
7362	NASDAQ	CECO	Wed, Aug 16, 2023	13.34	13.73	13.17	13.21
7361	NASDAQ	CECO	Tue, Aug 15, 2023	13.40	13.54	13.16	13.28
7360	NASDAQ	CECO	Mon, Aug 14, 2023	13.70	13.87	13.47	13.55
7359	NASDAQ	CECO	Fri, Aug 11, 2023	13.65	13.99	13.45	13.69
7358	NASDAQ	CECO	Thu, Aug 10, 2023	14.00	14.35	13.66	13.70
7357	NASDAQ	CECO	Wed, Aug 9, 2023	14.51	14.51	13.10	13.75
7356	NASDAQ	CECO	Tue, Aug 8, 2023	13.05	14.81	12.83	14.56
7355	NASDAQ	CECO	Mon, Aug 7, 2023	11.64	11.92	11.55	11.74
7354	NASDAQ	CECO	Fri, Aug 4, 2023	11.67	11.96	11.46	11.59
7353	NASDAQ	CECO	Thu, Aug 3, 2023	11.78	11.90	11.46	11.68
7352	NASDAQ	CECO	Wed, Aug 2, 2023	11.94	12.13	11.76	11.78
7351	NASDAQ	CECO	Tue, Aug 1, 2023	12.04	12.36	12.00	12.03
7350	NASDAQ	CECO	Mon, Jul 31, 2023	11.92	12.48	11.85	12.04
7349	NASDAQ	CECO	Fri, Jul 28, 2023	11.98	12.19	11.51	11.80
7348	NASDAQ	CECO	Thu, Jul 27, 2023	12.31	12.31	11.78	11.89
7347	NASDAQ	CECO	Wed, Jul 26, 2023	12.70	12.83	12.22	12.27
7346	NASDAQ	CECO	Tue, Jul 25, 2023	12.74	12.86	12.62	12.70
7345	NASDAQ	CECO	Mon, Jul 24, 2023	12.82	12.93	12.63	12.81
7344	NASDAQ	CECO	Fri, Jul 21, 2023	13.40	13.42	12.79	12.80
7343	NASDAQ	CECO	Thu, Jul 20, 2023	13.19	13.46	13.16	13.24
7342	NASDAQ	CECO	Wed, Jul 19, 2023	13.50	13.51	13.15	13.17
7341	NASDAQ	CECO	Tue, Jul 18, 2023	13.36	13.72	13.33	13.43
7340	NASDAQ	CECO	Mon, Jul 17, 2023	12.92	13.61	12.76	13.34
7339	NASDAQ	CECO	Fri, Jul 14, 2023	13.18	13.30	12.86	12.92
7338	NASDAQ	CECO	Thu, Jul 13, 2023	13.38	13.70	13.27	13.30
7337	NASDAQ	CECO	Wed, Jul 12, 2023	13.12	13.52	12.99	13.37
7336	NASDAQ	CECO	Tue, Jul 11, 2023	13.11	13.20	12.75	12.88
7335	NASDAQ	CECO	Mon, Jul 10, 2023	13.03	13.32	13.01	13.05
7334	NASDAQ	CECO	Fri, Jul 7, 2023	12.81	13.18	12.80	13.07
7333	NASDAQ	CECO	Thu, Jul 6, 2023	13.18	13.18	12.65	12.83
7332	NASDAQ	CECO	Wed, Jul 5, 2023	13.71	13.99	13.07	13.25
7331	NASDAQ	CECO	Mon, Jul 3, 2023	13.39	13.83	13.37	13.83
7330	NASDAQ	CECO	Fri, Jun 30, 2023	13.26	13.43	13.26	13.36
7329	NASDAQ	CECO	Thu, Jun 29, 2023	12.76	13.51	12.75	13.18
7328	NASDAQ	CECO	Wed, Jun 28, 2023	12.75	12.85	12.50	12.79
7327	NASDAQ	CECO	Tue, Jun 27, 2023	12.80	13.20	12.67	12.74
7326	NASDAQ	CECO	Mon, Jun 26, 2023	12.64	13.07	12.34	12.80
7325	NASDAQ	CECO	Fri, Jun 23, 2023	12.91	13.31	12.69	12.78
7324	NASDAQ	CECO	Thu, Jun 22, 2023	13.20	13.39	13.09	13.18
7323	NASDAQ	CECO	Wed, Jun 21, 2023	13.19	13.59	12.95	13.40
7322	NASDAQ	CECO	Tue, Jun 20, 2023	13.18	13.60	12.93	13.18
7321	NASDAQ	CECO	Fri, Jun 16, 2023	13.02	13.20	12.77	13.17
7320	NASDAQ	CECO	Thu, Jun 15, 2023	13.47	13.53	13.06	13.06
7319	NASDAQ	CECO	Wed, Jun 14, 2023	13.45	13.58	13.29	13.47
7318	NASDAQ	CECO	Tue, Jun 13, 2023	13.05	13.43	13.05	13.33
7317	NASDAQ	CECO	Mon, Jun 12, 2023	13.06	13.27	12.83	12.99
7316	NASDAQ	CECO	Fri, Jun 9, 2023	13.05	13.26	12.82	13.08
7315	NASDAQ	CECO	Thu, Jun 8, 2023	13.16	13.21	12.74	13.06
7314	NASDAQ	CECO	Wed, Jun 7, 2023	12.77	13.24	12.75	13.17
7313	NASDAQ	CECO	Tue, Jun 6, 2023	11.95	12.76	11.89	12.72
7312	NASDAQ	CECO	Mon, Jun 5, 2023	12.43	12.82	11.99	12.05
7311	NASDAQ	CECO	Fri, Jun 2, 2023	11.50	12.42	11.50	12.34
7310	NASDAQ	CECO	Thu, Jun 1, 2023	10.79	11.41	10.71	11.35
7309	NASDAQ	CECO	Wed, May 31, 2023	11.08	11.11	10.68	10.76
7308	NASDAQ	CECO	Tue, May 30, 2023	11.17	11.42	11.12	11.15
7307	NASDAQ	CECO	Fri, May 26, 2023	11.29	11.40	10.99	11.17
7306	NASDAQ	CECO	Thu, May 25, 2023	11.72	11.72	11.31	11.35
7305	NASDAQ	CECO	Wed, May 24, 2023	12.14	12.17	11.75	11.82
7304	NASDAQ	CECO	Tue, May 23, 2023	12.28	12.55	12.15	12.15
7303	NASDAQ	CECO	Mon, May 22, 2023	12.56	12.80	12.24	12.28
7302	NASDAQ	CECO	Fri, May 19, 2023	12.82	13.21	12.44	12.55
7301	NASDAQ	CECO	Thu, May 18, 2023	11.88	12.80	11.88	12.70
7300	NASDAQ	CECO	Wed, May 17, 2023	11.61	12.01	11.61	11.94
7299	NASDAQ	CECO	Tue, May 16, 2023	11.83	11.99	11.53	11.66
7298	NASDAQ	CECO	Mon, May 15, 2023	11.63	11.86	11.51	11.83
7297	NASDAQ	CECO	Fri, May 12, 2023	11.73	11.95	11.55	11.60
7296	NASDAQ	CECO	Thu, May 11, 2023	12.01	12.05	11.44	11.68
7295	NASDAQ	CECO	Wed, May 10, 2023	11.92	12.78	11.92	12.13
7294	NASDAQ	CECO	Tue, May 9, 2023	12.13	12.47	10.75	11.70
7293	NASDAQ	CECO	Mon, May 8, 2023	11.63	12.25	11.63	12.11
7292	NASDAQ	CECO	Fri, May 5, 2023	11.38	11.62	11.29	11.53
7291	NASDAQ	CECO	Thu, May 4, 2023	11.57	11.67	11.26	11.26
7290	NASDAQ	CECO	Wed, May 3, 2023	11.64	11.99	11.63	11.70
7289	NASDAQ	CECO	Tue, May 2, 2023	11.70	11.71	11.48	11.68
7288	NASDAQ	CECO	Mon, May 1, 2023	11.65	11.84	11.50	11.77
7287	NASDAQ	CECO	Fri, Apr 28, 2023	11.15	11.74	11.11	11.61
7286	NASDAQ	CECO	Thu, Apr 27, 2023	11.36	11.54	11.11	11.20
7285	NASDAQ	CECO	Wed, Apr 26, 2023	11.76	11.80	11.35	11.37
7284	NASDAQ	CECO	Tue, Apr 25, 2023	12.37	12.39	11.74	11.79
7283	NASDAQ	CECO	Mon, Apr 24, 2023	12.58	12.74	12.48	12.53
7282	NASDAQ	CECO	Fri, Apr 21, 2023	12.63	12.70	12.35	12.62
7281	NASDAQ	CECO	Thu, Apr 20, 2023	12.82	12.91	12.62	12.67
7280	NASDAQ	CECO	Wed, Apr 19, 2023	12.90	12.96	12.80	12.86
7279	NASDAQ	CECO	Tue, Apr 18, 2023	13.39	13.50	12.86	12.96
7278	NASDAQ	CECO	Mon, Apr 17, 2023	13.38	13.57	13.27	13.30
7277	NASDAQ	CECO	Fri, Apr 14, 2023	13.42	13.56	13.22	13.38
7276	NASDAQ	CECO	Thu, Apr 13, 2023	13.38	13.66	13.32	13.47
7275	NASDAQ	CECO	Wed, Apr 12, 2023	13.23	13.39	13.10	13.35
7274	NASDAQ	CECO	Tue, Apr 11, 2023	13.07	13.37	12.92	13.10
7273	NASDAQ	CECO	Mon, Apr 10, 2023	12.60	13.23	12.50	13.03
7272	NASDAQ	CECO	Thu, Apr 6, 2023	12.69	12.83	12.45	12.60
7271	NASDAQ	CECO	Wed, Apr 5, 2023	12.82	13.05	12.55	12.69
7270	NASDAQ	CECO	Tue, Apr 4, 2023	13.64	13.70	12.68	12.76
7269	NASDAQ	CECO	Mon, Apr 3, 2023	13.75	14.06	13.62	13.66
7268	NASDAQ	CECO	Fri, Mar 31, 2023	14.09	14.25	13.74	13.99
7267	NASDAQ	CECO	Thu, Mar 30, 2023	14.22	14.27	13.85	13.96
7266	NASDAQ	CECO	Wed, Mar 29, 2023	14.37	14.49	14.12	14.17
7265	NASDAQ	CECO	Tue, Mar 28, 2023	14.36	14.63	14.23	14.31
7264	NASDAQ	CECO	Mon, Mar 27, 2023	14.00	14.41	13.91	14.36
7263	NASDAQ	CECO	Fri, Mar 24, 2023	13.75	14.02	13.52	13.91
7262	NASDAQ	CECO	Thu, Mar 23, 2023	13.86	14.22	13.79	13.90
7261	NASDAQ	CECO	Wed, Mar 22, 2023	14.04	14.25	13.76	13.81
7260	NASDAQ	CECO	Tue, Mar 21, 2023	13.99	14.25	13.92	14.06
7259	NASDAQ	CECO	Mon, Mar 20, 2023	13.34	13.86	13.27	13.74
7258	NASDAQ	CECO	Fri, Mar 17, 2023	13.64	13.67	13.08	13.24
7257	NASDAQ	CECO	Thu, Mar 16, 2023	13.06	13.87	12.90	13.60
7256	NASDAQ	CECO	Wed, Mar 15, 2023	13.96	13.97	13.21	13.22
7255	NASDAQ	CECO	Tue, Mar 14, 2023	14.13	14.59	13.92	14.25
7254	NASDAQ	CECO	Mon, Mar 13, 2023	14.57	14.68	13.96	14.02
7253	NASDAQ	CECO	Fri, Mar 10, 2023	15.26	15.33	14.58	14.76
7252	NASDAQ	CECO	Thu, Mar 9, 2023	15.30	15.84	15.12	15.40
7251	NASDAQ	CECO	Wed, Mar 8, 2023	14.76	15.36	14.72	15.28
7250	NASDAQ	CECO	Tue, Mar 7, 2023	15.17	15.35	14.68	14.99
7249	NASDAQ	CECO	Mon, Mar 6, 2023	16.32	16.73	13.25	14.56
7248	NASDAQ	CECO	Fri, Mar 3, 2023	15.53	15.66	15.15	15.58
7247	NASDAQ	CECO	Thu, Mar 2, 2023	15.29	15.64	15.08	15.52
7246	NASDAQ	CECO	Wed, Mar 1, 2023	15.93	15.94	15.47	15.47
7245	NASDAQ	CECO	Tue, Feb 28, 2023	14.82	15.84	14.76	15.63
7244	NASDAQ	CECO	Mon, Feb 27, 2023	14.82	15.60	14.67	14.71
7243	NASDAQ	CECO	Fri, Feb 24, 2023	14.73	14.82	14.52	14.78
7242	NASDAQ	CECO	Thu, Feb 23, 2023	14.49	15.05	14.43	14.90
7241	NASDAQ	CECO	Wed, Feb 22, 2023	14.23	14.68	14.21	14.40
7240	NASDAQ	CECO	Tue, Feb 21, 2023	14.38	14.50	14.08	14.23
7239	NASDAQ	CECO	Fri, Feb 17, 2023	14.44	14.67	14.22	14.53
7238	NASDAQ	CECO	Thu, Feb 16, 2023	14.56	14.72	14.36	14.47
7237	NASDAQ	CECO	Wed, Feb 15, 2023	14.14	14.78	14.12	14.70
7236	NASDAQ	CECO	Tue, Feb 14, 2023	14.11	14.45	14.00	14.22
7235	NASDAQ	CECO	Mon, Feb 13, 2023	14.29	14.40	14.00	14.13
7234	NASDAQ	CECO	Fri, Feb 10, 2023	14.01	14.50	13.10	14.15
7233	NASDAQ	CECO	Thu, Feb 9, 2023	14.63	15.11	14.34	14.38
7232	NASDAQ	CECO	Wed, Feb 8, 2023	14.58	14.70	14.29	14.58
7231	NASDAQ	CECO	Tue, Feb 7, 2023	14.39	15.19	14.00	14.67
7230	NASDAQ	CECO	Mon, Feb 6, 2023	14.45	14.51	13.75	14.39
7229	NASDAQ	CECO	Fri, Feb 3, 2023	14.22	14.79	14.10	14.38
7228	NASDAQ	CECO	Thu, Feb 2, 2023	14.21	14.40	14.14	14.38
7227	NASDAQ	CECO	Wed, Feb 1, 2023	14.35	14.50	13.91	14.20
7226	NASDAQ	CECO	Tue, Jan 31, 2023	13.86	14.41	13.84	14.39
7225	NASDAQ	CECO	Mon, Jan 30, 2023	13.57	14.05	13.49	13.85
7224	NASDAQ	CECO	Fri, Jan 27, 2023	13.55	14.11	13.45	13.79
7223	NASDAQ	CECO	Thu, Jan 26, 2023	14.30	14.30	13.63	13.77
7222	NASDAQ	CECO	Wed, Jan 25, 2023	14.33	14.40	14.06	14.17
7221	NASDAQ	CECO	Tue, Jan 24, 2023	14.28	14.40	13.93	14.27
7220	NASDAQ	CECO	Mon, Jan 23, 2023	14.41	14.81	14.35	14.50
7219	NASDAQ	CECO	Fri, Jan 20, 2023	14.22	14.62	14.03	14.28
7218	NASDAQ	CECO	Thu, Jan 19, 2023	13.57	14.14	13.45	13.99
7217	NASDAQ	CECO	Wed, Jan 18, 2023	14.36	14.36	13.51	13.62
7216	NASDAQ	CECO	Tue, Jan 17, 2023	14.34	14.50	14.03	14.24
7215	NASDAQ	CECO	Fri, Jan 13, 2023	14.20	14.39	13.85	14.34
7214	NASDAQ	CECO	Thu, Jan 12, 2023	14.29	14.63	13.79	14.27
7213	NASDAQ	CECO	Wed, Jan 11, 2023	13.88	14.38	13.31	14.13
7212	NASDAQ	CECO	Tue, Jan 10, 2023	12.51	13.87	12.19	13.75
7211	NASDAQ	CECO	Mon, Jan 9, 2023	12.40	12.67	12.04	12.13
7210	NASDAQ	CECO	Fri, Jan 6, 2023	11.89	12.20	11.80	12.20
7209	NASDAQ	CECO	Thu, Jan 5, 2023	11.72	12.10	11.72	11.86
7208	NASDAQ	CECO	Wed, Jan 4, 2023	11.60	12.01	11.44	11.86
7207	NASDAQ	CECO	Tue, Jan 3, 2023	11.70	11.90	11.27	11.34
7206	NASDAQ	CECO	Fri, Dec 30, 2022	11.49	11.92	11.48	11.68
7205	NASDAQ	CECO	Thu, Dec 29, 2022	11.55	11.75	11.34	11.59
7204	NASDAQ	CECO	Wed, Dec 28, 2022	11.80	11.96	11.40	11.52
7203	NASDAQ	CECO	Tue, Dec 27, 2022	11.79	11.96	11.61	11.80
7202	NASDAQ	CECO	Fri, Dec 23, 2022	11.57	11.75	11.27	11.72
7201	NASDAQ	CECO	Thu, Dec 22, 2022	11.99	11.99	11.11	11.56
7200	NASDAQ	CECO	Wed, Dec 21, 2022	11.73	12.12	11.65	12.05
7199	NASDAQ	CECO	Tue, Dec 20, 2022	11.51	11.80	11.33	11.68
7198	NASDAQ	CECO	Mon, Dec 19, 2022	11.71	11.82	11.38	11.63
7197	NASDAQ	CECO	Fri, Dec 16, 2022	12.11	12.29	11.52	11.81
7196	NASDAQ	CECO	Thu, Dec 15, 2022	12.33	12.59	11.92	12.26
7195	NASDAQ	CECO	Wed, Dec 14, 2022	12.50	12.70	12.26	12.50
7194	NASDAQ	CECO	Tue, Dec 13, 2022	12.36	12.44	11.95	12.35
7193	NASDAQ	CECO	Mon, Dec 12, 2022	12.12	12.50	11.87	11.92
7192	NASDAQ	CECO	Fri, Dec 9, 2022	12.15	12.26	11.82	12.19
7191	NASDAQ	CECO	Thu, Dec 8, 2022	11.94	12.25	11.89	12.17
7190	NASDAQ	CECO	Wed, Dec 7, 2022	11.72	12.28	11.72	11.80
7189	NASDAQ	CECO	Tue, Dec 6, 2022	11.86	12.07	11.64	11.78
7188	NASDAQ	CECO	Mon, Dec 5, 2022	12.22	12.33	11.60	11.84
7187	NASDAQ	CECO	Fri, Dec 2, 2022	11.90	12.40	11.73	12.20
7186	NASDAQ	CECO	Thu, Dec 1, 2022	12.25	12.89	12.06	12.12
7185	NASDAQ	CECO	Wed, Nov 30, 2022	12.00	12.25	11.72	12.12
7184	NASDAQ	CECO	Tue, Nov 29, 2022	12.16	12.19	11.70	11.94
7183	NASDAQ	CECO	Mon, Nov 28, 2022	12.09	12.44	11.88	12.24
7182	NASDAQ	CECO	Fri, Nov 25, 2022	11.97	12.49	11.88	12.15
7181	NASDAQ	CECO	Wed, Nov 23, 2022	11.52	11.78	11.32	11.73
7180	NASDAQ	CECO	Tue, Nov 22, 2022	11.26	11.52	11.08	11.44
7179	NASDAQ	CECO	Mon, Nov 21, 2022	10.96	11.39	10.85	11.18
7178	NASDAQ	CECO	Fri, Nov 18, 2022	11.19	11.25	11.00	11.06
7177	NASDAQ	CECO	Thu, Nov 17, 2022	11.22	11.22	10.79	11.15
7176	NASDAQ	CECO	Wed, Nov 16, 2022	11.17	11.55	11.00	11.39
7175	NASDAQ	CECO	Tue, Nov 15, 2022	12.10	12.10	11.15	11.21
7174	NASDAQ	CECO	Mon, Nov 14, 2022	11.74	12.02	11.56	11.89
7173	NASDAQ	CECO	Fri, Nov 11, 2022	11.75	12.17	11.60	11.99
7172	NASDAQ	CECO	Thu, Nov 10, 2022	12.40	12.49	11.60	11.73
7171	NASDAQ	CECO	Wed, Nov 9, 2022	11.53	12.32	11.53	12.06
7170	NASDAQ	CECO	Tue, Nov 8, 2022	11.36	12.00	10.91	11.80
7169	NASDAQ	CECO	Mon, Nov 7, 2022	12.18	12.50	8.41	11.27
7168	NASDAQ	CECO	Fri, Nov 4, 2022	11.43	11.69	11.21	11.65
7167	NASDAQ	CECO	Thu, Nov 3, 2022	11.53	11.64	10.90	11.40
7166	NASDAQ	CECO	Wed, Nov 2, 2022	11.96	12.04	11.57	11.66
7165	NASDAQ	CECO	Tue, Nov 1, 2022	11.89	12.11	11.57	11.90
7164	NASDAQ	CECO	Mon, Oct 31, 2022	11.69	12.54	11.65	11.82
7163	NASDAQ	CECO	Fri, Oct 28, 2022	11.72	11.84	11.53	11.82
7162	NASDAQ	CECO	Thu, Oct 27, 2022	11.86	11.96	11.50	11.60
7161	NASDAQ	CECO	Wed, Oct 26, 2022	11.74	12.00	11.47	11.66
7160	NASDAQ	CECO	Tue, Oct 25, 2022	11.46	11.78	11.14	11.74
7159	NASDAQ	CECO	Mon, Oct 24, 2022	10.89	12.00	10.79	11.51
7158	NASDAQ	CECO	Fri, Oct 21, 2022	10.10	10.61	10.10	10.50
7157	NASDAQ	CECO	Thu, Oct 20, 2022	10.32	10.32	10.07	10.14
7156	NASDAQ	CECO	Wed, Oct 19, 2022	10.47	10.50	10.21	10.27
7155	NASDAQ	CECO	Tue, Oct 18, 2022	10.34	10.73	10.34	10.46
7154	NASDAQ	CECO	Mon, Oct 17, 2022	9.73	10.18	9.65	10.10
7153	NASDAQ	CECO	Fri, Oct 14, 2022	9.74	10.30	9.72	9.72
7152	NASDAQ	CECO	Thu, Oct 13, 2022	9.29	9.77	9.22	9.71
7151	NASDAQ	CECO	Wed, Oct 12, 2022	9.63	9.67	9.45	9.48
7150	NASDAQ	CECO	Tue, Oct 11, 2022	9.72	9.81	9.55	9.61
7149	NASDAQ	CECO	Mon, Oct 10, 2022	9.74	9.91	9.67	9.75
7148	NASDAQ	CECO	Fri, Oct 7, 2022	9.58	9.64	8.86	9.40
7147	NASDAQ	CECO	Thu, Oct 6, 2022	9.93	9.98	9.60	9.62
7146	NASDAQ	CECO	Wed, Oct 5, 2022	9.70	9.93	9.62	9.93
7145	NASDAQ	CECO	Tue, Oct 4, 2022	9.51	9.94	9.51	9.75
7144	NASDAQ	CECO	Mon, Oct 3, 2022	9.03	9.56	9.02	9.50
7143	NASDAQ	CECO	Fri, Sep 30, 2022	8.91	9.01	8.64	8.85
7142	NASDAQ	CECO	Thu, Sep 29, 2022	9.33	9.57	8.78	8.92
7141	NASDAQ	CECO	Wed, Sep 28, 2022	9.18	9.48	9.01	9.34
7140	NASDAQ	CECO	Tue, Sep 27, 2022	9.26	9.40	9.10	9.16
7139	NASDAQ	CECO	Mon, Sep 26, 2022	9.11	9.41	8.98	9.20
7138	NASDAQ	CECO	Fri, Sep 23, 2022	9.24	9.31	8.93	9.09
7137	NASDAQ	CECO	Thu, Sep 22, 2022	9.15	9.46	9.13	9.34
7136	NASDAQ	CECO	Wed, Sep 21, 2022	9.65	9.74	9.40	9.41
7135	NASDAQ	CECO	Tue, Sep 20, 2022	9.46	9.57	9.33	9.54
7134	NASDAQ	CECO	Mon, Sep 19, 2022	9.07	9.63	9.07	9.54
7133	NASDAQ	CECO	Fri, Sep 16, 2022	9.41	9.48	8.98	9.21
7132	NASDAQ	CECO	Thu, Sep 15, 2022	9.53	9.79	9.42	9.59
7131	NASDAQ	CECO	Wed, Sep 14, 2022	9.47	9.60	9.37	9.52
7130	NASDAQ	CECO	Tue, Sep 13, 2022	9.39	9.72	9.35	9.56
7129	NASDAQ	CECO	Mon, Sep 12, 2022	9.63	9.78	9.48	9.59
7128	NASDAQ	CECO	Fri, Sep 9, 2022	9.57	9.94	9.56	9.80
7127	NASDAQ	CECO	Thu, Sep 8, 2022	9.73	10.10	9.07	9.56
7126	NASDAQ	CECO	Wed, Sep 7, 2022	9.56	9.88	9.49	9.81
7125	NASDAQ	CECO	Tue, Sep 6, 2022	9.02	9.74	8.93	9.68
7124	NASDAQ	CECO	Fri, Sep 2, 2022	9.85	9.91	8.88	8.90
7123	NASDAQ	CECO	Thu, Sep 1, 2022	9.86	10.08	9.78	9.90
7122	NASDAQ	CECO	Wed, Aug 31, 2022	10.09	10.10	9.96	9.96
7121	NASDAQ	CECO	Tue, Aug 30, 2022	10.43	10.46	10.02	10.08
7120	NASDAQ	CECO	Mon, Aug 29, 2022	10.24	10.35	9.80	10.32
7119	NASDAQ	CECO	Fri, Aug 26, 2022	10.59	10.63	10.30	10.37
7118	NASDAQ	CECO	Thu, Aug 25, 2022	10.75	10.80	10.40	10.45
7117	NASDAQ	CECO	Wed, Aug 24, 2022	10.37	10.72	10.20	10.62
7116	NASDAQ	CECO	Tue, Aug 23, 2022	10.49	10.49	10.04	10.28
7115	NASDAQ	CECO	Mon, Aug 22, 2022	9.38	10.30	9.28	10.07
7114	NASDAQ	CECO	Fri, Aug 19, 2022	9.77	9.83	9.46	9.58
7113	NASDAQ	CECO	Thu, Aug 18, 2022	9.92	10.02	9.88	10.02
7112	NASDAQ	CECO	Wed, Aug 17, 2022	9.89	9.99	9.77	9.88
7111	NASDAQ	CECO	Tue, Aug 16, 2022	10.13	10.15	9.78	9.92
7110	NASDAQ	CECO	Mon, Aug 15, 2022	9.55	10.15	9.50	10.13
7109	NASDAQ	CECO	Fri, Aug 12, 2022	9.59	9.81	9.47	9.67
7108	NASDAQ	CECO	Thu, Aug 11, 2022	9.50	9.58	9.32	9.54
7107	NASDAQ	CECO	Wed, Aug 10, 2022	9.06	9.35	8.88	9.34
7106	NASDAQ	CECO	Tue, Aug 9, 2022	9.12	9.12	8.81	8.97
7105	NASDAQ	CECO	Mon, Aug 8, 2022	8.48	9.10	8.48	9.02
7104	NASDAQ	CECO	Fri, Aug 5, 2022	7.84	8.05	7.73	8.05
7103	NASDAQ	CECO	Thu, Aug 4, 2022	7.94	7.97	7.84	7.90
7102	NASDAQ	CECO	Wed, Aug 3, 2022	7.75	7.99	7.75	7.89
7101	NASDAQ	CECO	Tue, Aug 2, 2022	7.89	8.02	7.80	7.80
7100	NASDAQ	CECO	Mon, Aug 1, 2022	7.83	7.91	7.71	7.90
7099	NASDAQ	CECO	Fri, Jul 29, 2022	7.74	7.80	7.70	7.75
7098	NASDAQ	CECO	Thu, Jul 28, 2022	7.72	7.73	7.52	7.65
7097	NASDAQ	CECO	Wed, Jul 27, 2022	7.48	7.70	7.22	7.66
7096	NASDAQ	CECO	Tue, Jul 26, 2022	7.50	7.54	7.30	7.40
7095	NASDAQ	CECO	Mon, Jul 25, 2022	7.40	7.65	7.25	7.56
7094	NASDAQ	CECO	Fri, Jul 22, 2022	7.35	7.35	7.21	7.29
7093	NASDAQ	CECO	Thu, Jul 21, 2022	7.14	7.32	6.97	7.26
7092	NASDAQ	CECO	Wed, Jul 20, 2022	6.49	7.13	6.42	7.08
7091	NASDAQ	CECO	Tue, Jul 19, 2022	6.44	6.51	6.36	6.47
7090	NASDAQ	CECO	Mon, Jul 18, 2022	6.20	6.38	6.19	6.34
7089	NASDAQ	CECO	Fri, Jul 15, 2022	6.13	6.29	6.01	6.20
7088	NASDAQ	CECO	Thu, Jul 14, 2022	5.93	6.09	5.84	6.09
7087	NASDAQ	CECO	Wed, Jul 13, 2022	5.96	6.07	5.96	6.04
7086	NASDAQ	CECO	Tue, Jul 12, 2022	5.95	6.08	5.94	6.05
7085	NASDAQ	CECO	Mon, Jul 11, 2022	6.08	6.12	5.89	6.00
7084	NASDAQ	CECO	Fri, Jul 8, 2022	6.26	6.26	6.10	6.18
7083	NASDAQ	CECO	Thu, Jul 7, 2022	5.93	6.25	5.93	6.25
7082	NASDAQ	CECO	Wed, Jul 6, 2022	5.84	6.03	5.70	5.97
7081	NASDAQ	CECO	Tue, Jul 5, 2022	6.03	6.03	5.83	5.85
7080	NASDAQ	CECO	Fri, Jul 1, 2022	6.01	6.08	5.90	6.04
7079	NASDAQ	CECO	Thu, Jun 30, 2022	5.91	6.05	5.76	5.98
7078	NASDAQ	CECO	Wed, Jun 29, 2022	6.11	6.11	6.00	6.03
7077	NASDAQ	CECO	Tue, Jun 28, 2022	6.24	6.30	6.09	6.10
7076	NASDAQ	CECO	Mon, Jun 27, 2022	6.07	6.21	5.93	6.13
7075	NASDAQ	CECO	Fri, Jun 24, 2022	6.04	6.16	5.80	6.00
7074	NASDAQ	CECO	Thu, Jun 23, 2022	5.92	6.06	5.74	5.95
7073	NASDAQ	CECO	Wed, Jun 22, 2022	5.68	5.99	5.68	5.83
7072	NASDAQ	CECO	Tue, Jun 21, 2022	5.74	5.90	5.72	5.80
7071	NASDAQ	CECO	Fri, Jun 17, 2022	5.65	5.83	5.63	5.72
7070	NASDAQ	CECO	Thu, Jun 16, 2022	6.07	6.07	5.58	5.65
7069	NASDAQ	CECO	Wed, Jun 15, 2022	6.12	6.23	6.08	6.18
7068	NASDAQ	CECO	Tue, Jun 14, 2022	6.38	6.41	5.92	6.12
7067	NASDAQ	CECO	Mon, Jun 13, 2022	6.29	6.45	6.22	6.39
7066	NASDAQ	CECO	Fri, Jun 10, 2022	6.72	6.78	6.43	6.47
7065	NASDAQ	CECO	Thu, Jun 9, 2022	6.62	6.84	6.58	6.77
7064	NASDAQ	CECO	Wed, Jun 8, 2022	6.60	6.77	6.38	6.70
7063	NASDAQ	CECO	Tue, Jun 7, 2022	6.20	6.71	6.16	6.68
7062	NASDAQ	CECO	Mon, Jun 6, 2022	6.37	6.51	6.26	6.29
7061	NASDAQ	CECO	Fri, Jun 3, 2022	6.44	6.45	6.29	6.38
7060	NASDAQ	CECO	Thu, Jun 2, 2022	6.35	6.50	6.30	6.45
7059	NASDAQ	CECO	Wed, Jun 1, 2022	6.28	6.39	6.15	6.30
7058	NASDAQ	CECO	Tue, May 31, 2022	6.35	6.40	6.24	6.26
7057	NASDAQ	CECO	Fri, May 27, 2022	6.34	6.41	6.29	6.40
7056	NASDAQ	CECO	Thu, May 26, 2022	6.19	6.33	6.07	6.29
7055	NASDAQ	CECO	Wed, May 25, 2022	6.01	6.18	5.95	6.14
7054	NASDAQ	CECO	Tue, May 24, 2022	6.03	6.09	5.90	6.05
7053	NASDAQ	CECO	Mon, May 23, 2022	6.06	6.10	5.86	6.07
7052	NASDAQ	CECO	Fri, May 20, 2022	6.26	6.26	5.86	6.05
7051	NASDAQ	CECO	Thu, May 19, 2022	5.95	6.25	5.85	6.17
7050	NASDAQ	CECO	Wed, May 18, 2022	5.74	6.00	5.66	5.89
7049	NASDAQ	CECO	Tue, May 17, 2022	5.79	5.99	5.71	5.86
7048	NASDAQ	CECO	Mon, May 16, 2022	5.43	5.70	5.40	5.66
7047	NASDAQ	CECO	Fri, May 13, 2022	5.41	5.63	5.39	5.47
7046	NASDAQ	CECO	Thu, May 12, 2022	5.24	5.47	5.18	5.40
7045	NASDAQ	CECO	Wed, May 11, 2022	5.29	5.47	5.29	5.35
7044	NASDAQ	CECO	Tue, May 10, 2022	4.92	5.49	4.57	5.36
7043	NASDAQ	CECO	Mon, May 9, 2022	4.25	4.30	4.09	4.25
7042	NASDAQ	CECO	Fri, May 6, 2022	4.46	4.46	4.25	4.28
7041	NASDAQ	CECO	Thu, May 5, 2022	4.66	4.68	4.35	4.43
7040	NASDAQ	CECO	Wed, May 4, 2022	4.70	4.78	4.49	4.75
7039	NASDAQ	CECO	Tue, May 3, 2022	4.78	5.00	4.61	4.73
7038	NASDAQ	CECO	Mon, May 2, 2022	4.75	4.86	4.66	4.75
7037	NASDAQ	CECO	Fri, Apr 29, 2022	4.58	4.90	4.58	4.75
7036	NASDAQ	CECO	Thu, Apr 28, 2022	4.40	4.61	4.36	4.58
7035	NASDAQ	CECO	Wed, Apr 27, 2022	4.76	4.81	4.33	4.39
7034	NASDAQ	CECO	Tue, Apr 26, 2022	4.66	4.83	4.63	4.76
7033	NASDAQ	CECO	Mon, Apr 25, 2022	4.63	4.75	4.49	4.74
7032	NASDAQ	CECO	Fri, Apr 22, 2022	4.74	4.82	4.66	4.66
7031	NASDAQ	CECO	Thu, Apr 21, 2022	4.99	5.01	4.76	4.76
7030	NASDAQ	CECO	Wed, Apr 20, 2022	5.07	5.15	4.90	4.95
7029	NASDAQ	CECO	Tue, Apr 19, 2022	4.97	5.06	4.93	5.01
7028	NASDAQ	CECO	Mon, Apr 18, 2022	5.08	5.10	4.93	4.97
7027	NASDAQ	CECO	Thu, Apr 14, 2022	4.91	5.17	4.82	5.08
7026	NASDAQ	CECO	Wed, Apr 13, 2022	4.66	4.91	4.65	4.89
7025	NASDAQ	CECO	Tue, Apr 12, 2022	4.75	4.75	4.45	4.64
7024	NASDAQ	CECO	Mon, Apr 11, 2022	4.93	4.93	4.64	4.68
7023	NASDAQ	CECO	Fri, Apr 8, 2022	4.91	5.07	4.86	4.96
7022	NASDAQ	CECO	Thu, Apr 7, 2022	5.06	5.06	4.81	4.93
7021	NASDAQ	CECO	Wed, Apr 6, 2022	5.20	5.23	5.02	5.08
7020	NASDAQ	CECO	Tue, Apr 5, 2022	5.54	5.60	5.24	5.24
7019	NASDAQ	CECO	Mon, Apr 4, 2022	5.48	5.55	5.44	5.52
7018	NASDAQ	CECO	Fri, Apr 1, 2022	5.49	5.75	5.32	5.46
7017	NASDAQ	CECO	Thu, Mar 31, 2022	5.48	5.55	5.47	5.49
7016	NASDAQ	CECO	Wed, Mar 30, 2022	5.64	5.64	5.49	5.52
7015	NASDAQ	CECO	Tue, Mar 29, 2022	5.70	5.87	5.65	5.67
7014	NASDAQ	CECO	Mon, Mar 28, 2022	5.75	5.75	5.55	5.63
7013	NASDAQ	CECO	Fri, Mar 25, 2022	5.60	5.81	5.49	5.74
7012	NASDAQ	CECO	Thu, Mar 24, 2022	5.54	5.67	5.45	5.55
7011	NASDAQ	CECO	Wed, Mar 23, 2022	5.69	5.73	5.48	5.49
7010	NASDAQ	CECO	Tue, Mar 22, 2022	5.84	5.88	5.67	5.71
7009	NASDAQ	CECO	Mon, Mar 21, 2022	6.05	6.10	5.76	5.81
7008	NASDAQ	CECO	Fri, Mar 18, 2022	5.64	6.15	5.61	6.06
7007	NASDAQ	CECO	Thu, Mar 17, 2022	5.52	5.67	5.45	5.64
7006	NASDAQ	CECO	Wed, Mar 16, 2022	5.41	5.48	5.31	5.43
7005	NASDAQ	CECO	Tue, Mar 15, 2022	5.37	5.55	5.25	5.34
7004	NASDAQ	CECO	Mon, Mar 14, 2022	5.67	5.91	5.21	5.30
7003	NASDAQ	CECO	Fri, Mar 11, 2022	5.55	5.76	5.38	5.40
7002	NASDAQ	CECO	Thu, Mar 10, 2022	5.47	5.60	5.41	5.55
7001	NASDAQ	CECO	Wed, Mar 9, 2022	5.44	5.62	5.44	5.60
7000	NASDAQ	CECO	Tue, Mar 8, 2022	5.24	5.44	5.19	5.34
6999	NASDAQ	CECO	Mon, Mar 7, 2022	5.15	5.28	5.11	5.18
6998	NASDAQ	CECO	Fri, Mar 4, 2022	5.17	5.18	5.00	5.12
6997	NASDAQ	CECO	Thu, Mar 3, 2022	5.48	5.48	5.16	5.23
6996	NASDAQ	CECO	Wed, Mar 2, 2022	5.49	5.53	5.37	5.45
6995	NASDAQ	CECO	Tue, Mar 1, 2022	5.34	5.45	5.31	5.35
6994	NASDAQ	CECO	Mon, Feb 28, 2022	5.47	5.59	5.38	5.38
6993	NASDAQ	CECO	Fri, Feb 25, 2022	5.37	5.58	5.34	5.54
6992	NASDAQ	CECO	Thu, Feb 24, 2022	5.24	5.34	5.18	5.33
6991	NASDAQ	CECO	Wed, Feb 23, 2022	5.56	5.56	5.34	5.35
6990	NASDAQ	CECO	Tue, Feb 22, 2022	5.61	5.64	5.47	5.52
6989	NASDAQ	CECO	Fri, Feb 18, 2022	5.73	5.81	5.63	5.65
6988	NASDAQ	CECO	Thu, Feb 17, 2022	5.96	5.96	5.76	5.78
6987	NASDAQ	CECO	Wed, Feb 16, 2022	5.85	6.00	5.85	5.97
6986	NASDAQ	CECO	Tue, Feb 15, 2022	5.66	5.92	5.66	5.89
6985	NASDAQ	CECO	Mon, Feb 14, 2022	5.60	5.69	5.51	5.64
6984	NASDAQ	CECO	Fri, Feb 11, 2022	5.72	5.87	5.64	5.65
6983	NASDAQ	CECO	Thu, Feb 10, 2022	5.84	5.88	5.72	5.74
6982	NASDAQ	CECO	Wed, Feb 9, 2022	5.85	5.99	5.79	5.94
6981	NASDAQ	CECO	Tue, Feb 8, 2022	5.83	5.90	5.74	5.78
6980	NASDAQ	CECO	Mon, Feb 7, 2022	5.83	5.96	5.71	5.83
6979	NASDAQ	CECO	Fri, Feb 4, 2022	5.91	6.07	5.80	5.87
6978	NASDAQ	CECO	Thu, Feb 3, 2022	6.07	6.13	5.90	5.93
6977	NASDAQ	CECO	Wed, Feb 2, 2022	6.25	6.25	6.07	6.09
6976	NASDAQ	CECO	Tue, Feb 1, 2022	6.30	6.32	6.11	6.26
6975	NASDAQ	CECO	Mon, Jan 31, 2022	6.25	6.33	6.20	6.31
6974	NASDAQ	CECO	Fri, Jan 28, 2022	6.25	6.31	6.13	6.29
6973	NASDAQ	CECO	Thu, Jan 27, 2022	6.29	6.45	6.22	6.25
6972	NASDAQ	CECO	Wed, Jan 26, 2022	6.37	6.63	6.22	6.30
6971	NASDAQ	CECO	Tue, Jan 25, 2022	6.31	6.36	6.21	6.29
6970	NASDAQ	CECO	Mon, Jan 24, 2022	6.44	6.47	6.13	6.40
6969	NASDAQ	CECO	Fri, Jan 21, 2022	6.40	6.55	6.36	6.49
6968	NASDAQ	CECO	Thu, Jan 20, 2022	6.54	6.61	6.37	6.40
6967	NASDAQ	CECO	Wed, Jan 19, 2022	6.52	6.53	6.45	6.50
6966	NASDAQ	CECO	Tue, Jan 18, 2022	6.25	6.52	6.25	6.50
6965	NASDAQ	CECO	Fri, Jan 14, 2022	6.26	6.32	6.23	6.27
6964	NASDAQ	CECO	Thu, Jan 13, 2022	6.15	6.44	6.06	6.33
6963	NASDAQ	CECO	Wed, Jan 12, 2022	6.38	6.38	6.15	6.15
6962	NASDAQ	CECO	Tue, Jan 11, 2022	6.07	6.41	5.90	6.35
6961	NASDAQ	CECO	Mon, Jan 10, 2022	6.15	6.17	6.00	6.11
6960	NASDAQ	CECO	Fri, Jan 7, 2022	6.29	6.33	6.21	6.21
6959	NASDAQ	CECO	Thu, Jan 6, 2022	6.34	6.41	6.30	6.33
6958	NASDAQ	CECO	Wed, Jan 5, 2022	6.27	6.46	6.27	6.35
6957	NASDAQ	CECO	Tue, Jan 4, 2022	6.30	6.39	6.25	6.26
6956	NASDAQ	CECO	Mon, Jan 3, 2022	6.22	6.39	6.22	6.29
6955	NASDAQ	CECO	Fri, Dec 31, 2021	6.20	6.30	6.18	6.23
6954	NASDAQ	CECO	Thu, Dec 30, 2021	6.15	6.32	6.15	6.23
6953	NASDAQ	CECO	Wed, Dec 29, 2021	6.21	6.30	6.14	6.19
6952	NASDAQ	CECO	Tue, Dec 28, 2021	6.24	6.35	6.17	6.22
6951	NASDAQ	CECO	Mon, Dec 27, 2021	6.34	6.44	6.21	6.27
6950	NASDAQ	CECO	Thu, Dec 23, 2021	6.23	6.35	6.09	6.29
6949	NASDAQ	CECO	Wed, Dec 22, 2021	6.05	6.15	5.97	6.15
6948	NASDAQ	CECO	Tue, Dec 21, 2021	6.00	6.11	5.93	6.03
6947	NASDAQ	CECO	Mon, Dec 20, 2021	5.99	6.00	5.77	5.89
6946	NASDAQ	CECO	Fri, Dec 17, 2021	6.01	6.12	5.94	6.01
6945	NASDAQ	CECO	Thu, Dec 16, 2021	6.15	6.30	6.02	6.06
6944	NASDAQ	CECO	Wed, Dec 15, 2021	6.01	6.24	5.95	6.11
6943	NASDAQ	CECO	Tue, Dec 14, 2021	5.90	6.09	5.86	6.00
6942	NASDAQ	CECO	Mon, Dec 13, 2021	6.02	6.11	5.88	5.90
6941	NASDAQ	CECO	Fri, Dec 10, 2021	6.10	6.16	5.97	6.07
6940	NASDAQ	CECO	Thu, Dec 9, 2021	6.24	6.24	6.06	6.09
6939	NASDAQ	CECO	Wed, Dec 8, 2021	6.31	6.42	6.21	6.27
6938	NASDAQ	CECO	Tue, Dec 7, 2021	6.15	6.50	6.15	6.34
6937	NASDAQ	CECO	Mon, Dec 6, 2021	6.09	6.25	6.04	6.08
6936	NASDAQ	CECO	Fri, Dec 3, 2021	5.97	6.06	5.79	6.00
6935	NASDAQ	CECO	Thu, Dec 2, 2021	5.91	6.09	5.91	5.98
6934	NASDAQ	CECO	Wed, Dec 1, 2021	6.04	6.30	5.91	5.91
6933	NASDAQ	CECO	Tue, Nov 30, 2021	6.06	6.14	5.91	5.93
6932	NASDAQ	CECO	Mon, Nov 29, 2021	6.22	6.27	6.02	6.14
6931	NASDAQ	CECO	Fri, Nov 26, 2021	6.34	6.34	6.10	6.17
6930	NASDAQ	CECO	Wed, Nov 24, 2021	6.48	6.65	6.32	6.47
6929	NASDAQ	CECO	Tue, Nov 23, 2021	6.72	6.72	6.55	6.57
6928	NASDAQ	CECO	Mon, Nov 22, 2021	6.61	6.81	6.53	6.61
6927	NASDAQ	CECO	Fri, Nov 19, 2021	6.44	6.63	6.40	6.57
6926	NASDAQ	CECO	Thu, Nov 18, 2021	6.65	6.75	6.44	6.47
6925	NASDAQ	CECO	Wed, Nov 17, 2021	6.72	6.80	6.52	6.66
6924	NASDAQ	CECO	Tue, Nov 16, 2021	6.79	6.88	6.75	6.81
6923	NASDAQ	CECO	Mon, Nov 15, 2021	6.72	6.84	6.70	6.80
6922	NASDAQ	CECO	Fri, Nov 12, 2021	7.09	7.09	6.61	6.70
6921	NASDAQ	CECO	Thu, Nov 11, 2021	7.00	7.15	6.86	7.09
6920	NASDAQ	CECO	Wed, Nov 10, 2021	6.85	7.08	6.85	7.00
6919	NASDAQ	CECO	Tue, Nov 9, 2021	6.95	7.00	6.81	6.90
6918	NASDAQ	CECO	Mon, Nov 8, 2021	7.13	7.27	6.90	6.96
6917	NASDAQ	CECO	Fri, Nov 5, 2021	7.26	7.62	7.15	7.51
6916	NASDAQ	CECO	Thu, Nov 4, 2021	7.50	7.54	7.09	7.14
6915	NASDAQ	CECO	Wed, Nov 3, 2021	7.22	7.66	7.15	7.39
6914	NASDAQ	CECO	Tue, Nov 2, 2021	7.15	7.42	7.05	7.33
6913	NASDAQ	CECO	Mon, Nov 1, 2021	6.85	7.20	6.85	7.16
6912	NASDAQ	CECO	Fri, Oct 29, 2021	6.80	6.95	6.73	6.88
6911	NASDAQ	CECO	Thu, Oct 28, 2021	6.80	6.92	6.75	6.81
6910	NASDAQ	CECO	Wed, Oct 27, 2021	7.00	7.14	6.78	6.80
6909	NASDAQ	CECO	Tue, Oct 26, 2021	6.89	7.20	6.89	7.03
6908	NASDAQ	CECO	Mon, Oct 25, 2021	6.83	6.97	6.81	6.97
6907	NASDAQ	CECO	Fri, Oct 22, 2021	7.01	7.09	6.85	6.85
6906	NASDAQ	CECO	Thu, Oct 21, 2021	7.04	7.15	6.98	6.99
6905	NASDAQ	CECO	Wed, Oct 20, 2021	6.94	7.10	6.94	7.05
6904	NASDAQ	CECO	Tue, Oct 19, 2021	7.00	7.03	6.93	6.97
6903	NASDAQ	CECO	Mon, Oct 18, 2021	7.05	7.13	6.96	6.96
6902	NASDAQ	CECO	Fri, Oct 15, 2021	7.16	7.25	7.07	7.07
6901	NASDAQ	CECO	Thu, Oct 14, 2021	7.12	7.12	7.01	7.04
6900	NASDAQ	CECO	Wed, Oct 13, 2021	6.99	7.07	6.92	6.98
6899	NASDAQ	CECO	Tue, Oct 12, 2021	7.03	7.11	6.95	7.06
6898	NASDAQ	CECO	Mon, Oct 11, 2021	7.10	7.16	7.01	7.01
6897	NASDAQ	CECO	Fri, Oct 8, 2021	7.26	7.26	7.12	7.13
6896	NASDAQ	CECO	Thu, Oct 7, 2021	7.16	7.39	7.13	7.28
6895	NASDAQ	CECO	Wed, Oct 6, 2021	7.11	7.20	7.02	7.12
6894	NASDAQ	CECO	Tue, Oct 5, 2021	7.29	7.32	7.19	7.19
6893	NASDAQ	CECO	Mon, Oct 4, 2021	7.26	7.48	7.21	7.35
6892	NASDAQ	CECO	Fri, Oct 1, 2021	7.00	7.38	6.91	7.26
6891	NASDAQ	CECO	Thu, Sep 30, 2021	7.21	7.34	7.03	7.04
6890	NASDAQ	CECO	Wed, Sep 29, 2021	7.18	7.25	7.05	7.16
6889	NASDAQ	CECO	Tue, Sep 28, 2021	7.34	7.39	7.08	7.17
6888	NASDAQ	CECO	Mon, Sep 27, 2021	6.94	7.43	6.86	7.39
6887	NASDAQ	CECO	Fri, Sep 24, 2021	6.93	7.08	6.80	6.95
6886	NASDAQ	CECO	Thu, Sep 23, 2021	6.86	7.00	6.77	6.97
6885	NASDAQ	CECO	Wed, Sep 22, 2021	6.79	6.92	6.73	6.83
6884	NASDAQ	CECO	Tue, Sep 21, 2021	6.75	6.80	6.59	6.75
6883	NASDAQ	CECO	Mon, Sep 20, 2021	6.63	6.74	6.53	6.69
6882	NASDAQ	CECO	Fri, Sep 17, 2021	6.92	6.92	6.63	6.73
6881	NASDAQ	CECO	Thu, Sep 16, 2021	7.01	7.02	6.88	6.92
6880	NASDAQ	CECO	Wed, Sep 15, 2021	6.79	7.08	6.78	6.99
6879	NASDAQ	CECO	Tue, Sep 14, 2021	6.93	7.16	6.76	6.82
6878	NASDAQ	CECO	Mon, Sep 13, 2021	6.96	7.12	6.88	6.93
6877	NASDAQ	CECO	Fri, Sep 10, 2021	7.19	7.20	6.87	6.88
6876	NASDAQ	CECO	Thu, Sep 9, 2021	7.35	7.35	7.18	7.18
6875	NASDAQ	CECO	Wed, Sep 8, 2021	7.45	7.52	7.30	7.34
6874	NASDAQ	CECO	Tue, Sep 7, 2021	7.52	7.60	7.13	7.50
6873	NASDAQ	CECO	Fri, Sep 3, 2021	7.57	7.60	7.44	7.56
6872	NASDAQ	CECO	Thu, Sep 2, 2021	7.59	7.72	7.51	7.60
6871	NASDAQ	CECO	Wed, Sep 1, 2021	7.58	7.62	7.48	7.54
6870	NASDAQ	CECO	Tue, Aug 31, 2021	7.56	7.65	7.48	7.55
6869	NASDAQ	CECO	Mon, Aug 30, 2021	7.65	7.65	7.52	7.57
6868	NASDAQ	CECO	Fri, Aug 27, 2021	7.54	7.72	7.46	7.59
6867	NASDAQ	CECO	Thu, Aug 26, 2021	7.47	7.57	7.43	7.47
6866	NASDAQ	CECO	Wed, Aug 25, 2021	7.45	7.64	7.21	7.47
6865	NASDAQ	CECO	Tue, Aug 24, 2021	7.24	7.59	7.17	7.43
6864	NASDAQ	CECO	Mon, Aug 23, 2021	7.34	7.34	7.19	7.24
6863	NASDAQ	CECO	Fri, Aug 20, 2021	7.11	7.34	7.11	7.27
6862	NASDAQ	CECO	Thu, Aug 19, 2021	6.92	7.21	6.88	7.14
6861	NASDAQ	CECO	Wed, Aug 18, 2021	6.86	7.17	6.86	7.00
6860	NASDAQ	CECO	Tue, Aug 17, 2021	6.67	7.00	6.62	6.90
6859	NASDAQ	CECO	Mon, Aug 16, 2021	6.70	6.84	6.58	6.74
6858	NASDAQ	CECO	Fri, Aug 13, 2021	6.78	6.86	6.70	6.75
6857	NASDAQ	CECO	Thu, Aug 12, 2021	6.97	7.01	6.75	6.78
6856	NASDAQ	CECO	Wed, Aug 11, 2021	6.95	7.00	6.80	6.95
6855	NASDAQ	CECO	Tue, Aug 10, 2021	6.84	6.99	6.79	6.93
6854	NASDAQ	CECO	Mon, Aug 9, 2021	6.95	7.00	6.79	6.88
6853	NASDAQ	CECO	Fri, Aug 6, 2021	6.87	7.03	6.87	6.95
6852	NASDAQ	CECO	Thu, Aug 5, 2021	6.70	6.92	6.69	6.76
6851	NASDAQ	CECO	Wed, Aug 4, 2021	7.29	7.29	6.75	6.75
6850	NASDAQ	CECO	Tue, Aug 3, 2021	7.15	7.35	6.72	7.26
6849	NASDAQ	CECO	Mon, Aug 2, 2021	7.06	7.13	6.86	6.94
6848	NASDAQ	CECO	Fri, Jul 30, 2021	7.05	7.17	7.02	7.04
6847	NASDAQ	CECO	Thu, Jul 29, 2021	7.17	7.21	7.04	7.06
6846	NASDAQ	CECO	Wed, Jul 28, 2021	7.06	7.19	6.93	7.11
6845	NASDAQ	CECO	Tue, Jul 27, 2021	6.96	7.07	6.90	7.02
6844	NASDAQ	CECO	Mon, Jul 26, 2021	7.02	7.15	6.98	7.04
6843	NASDAQ	CECO	Fri, Jul 23, 2021	6.95	7.04	6.84	7.03
6842	NASDAQ	CECO	Thu, Jul 22, 2021	7.26	7.26	6.94	6.97
6841	NASDAQ	CECO	Wed, Jul 21, 2021	7.03	7.30	7.03	7.28
6840	NASDAQ	CECO	Tue, Jul 20, 2021	6.74	7.18	6.71	6.97
6839	NASDAQ	CECO	Mon, Jul 19, 2021	6.86	6.92	6.68	6.75
6838	NASDAQ	CECO	Fri, Jul 16, 2021	7.20	7.24	6.92	6.95
6837	NASDAQ	CECO	Thu, Jul 15, 2021	7.08	7.17	6.99	7.10
6836	NASDAQ	CECO	Wed, Jul 14, 2021	7.30	7.35	7.09	7.10
6835	NASDAQ	CECO	Tue, Jul 13, 2021	7.37	7.45	7.23	7.26
6834	NASDAQ	CECO	Mon, Jul 12, 2021	7.27	7.51	7.23	7.46
6833	NASDAQ	CECO	Fri, Jul 9, 2021	7.10	7.37	7.10	7.34
6832	NASDAQ	CECO	Thu, Jul 8, 2021	7.02	7.14	6.95	7.07
6831	NASDAQ	CECO	Wed, Jul 7, 2021	7.07	7.14	7.01	7.11
6830	NASDAQ	CECO	Tue, Jul 6, 2021	7.34	7.34	7.06	7.12
6829	NASDAQ	CECO	Fri, Jul 2, 2021	7.26	7.41	7.12	7.36
6828	NASDAQ	CECO	Thu, Jul 1, 2021	7.24	7.34	7.16	7.25
6827	NASDAQ	CECO	Wed, Jun 30, 2021	7.17	7.24	7.10	7.16
6826	NASDAQ	CECO	Tue, Jun 29, 2021	7.26	7.31	7.16	7.18
6825	NASDAQ	CECO	Mon, Jun 28, 2021	7.29	7.45	7.04	7.20
6824	NASDAQ	CECO	Fri, Jun 25, 2021	7.61	7.63	7.31	7.34
6823	NASDAQ	CECO	Thu, Jun 24, 2021	7.51	7.68	7.44	7.65
6822	NASDAQ	CECO	Wed, Jun 23, 2021	7.46	7.65	7.46	7.49
6821	NASDAQ	CECO	Tue, Jun 22, 2021	7.43	7.55	7.28	7.44
6820	NASDAQ	CECO	Mon, Jun 21, 2021	7.52	7.55	7.25	7.48
6819	NASDAQ	CECO	Fri, Jun 18, 2021	7.60	7.65	7.42	7.47
6818	NASDAQ	CECO	Thu, Jun 17, 2021	7.78	7.96	7.56	7.72
6817	NASDAQ	CECO	Wed, Jun 16, 2021	8.22	8.27	7.82	7.86
6816	NASDAQ	CECO	Tue, Jun 15, 2021	8.18	8.31	8.02	8.29
6815	NASDAQ	CECO	Mon, Jun 14, 2021	8.35	8.37	8.09	8.15
6814	NASDAQ	CECO	Fri, Jun 11, 2021	8.29	8.30	8.14	8.29
6813	NASDAQ	CECO	Thu, Jun 10, 2021	8.29	8.30	8.20	8.27
6812	NASDAQ	CECO	Wed, Jun 9, 2021	8.10	8.36	8.10	8.26
6811	NASDAQ	CECO	Tue, Jun 8, 2021	8.15	8.22	8.06	8.11
6810	NASDAQ	CECO	Mon, Jun 7, 2021	7.95	8.21	7.95	8.16
6809	NASDAQ	CECO	Fri, Jun 4, 2021	7.94	8.05	7.86	7.95
6808	NASDAQ	CECO	Thu, Jun 3, 2021	7.74	7.91	7.53	7.88
6807	NASDAQ	CECO	Wed, Jun 2, 2021	7.66	7.77	7.54	7.72
6806	NASDAQ	CECO	Tue, Jun 1, 2021	7.62	7.79	7.59	7.66
6805	NASDAQ	CECO	Fri, May 28, 2021	7.51	7.70	7.51	7.63
6804	NASDAQ	CECO	Thu, May 27, 2021	7.58	7.82	7.51	7.63
6803	NASDAQ	CECO	Wed, May 26, 2021	7.50	7.56	7.41	7.48
6802	NASDAQ	CECO	Tue, May 25, 2021	7.96	8.00	7.50	7.53
6801	NASDAQ	CECO	Mon, May 24, 2021	8.13	8.20	7.95	7.99
6800	NASDAQ	CECO	Fri, May 21, 2021	8.12	8.16	7.95	8.12
6799	NASDAQ	CECO	Thu, May 20, 2021	8.10	8.12	7.78	8.03
6798	NASDAQ	CECO	Wed, May 19, 2021	8.21	8.24	7.80	8.11
6797	NASDAQ	CECO	Tue, May 18, 2021	8.79	9.16	8.20	8.24
6796	NASDAQ	CECO	Mon, May 17, 2021	8.09	8.59	8.00	8.49
6795	NASDAQ	CECO	Fri, May 14, 2021	7.39	7.55	7.28	7.50
6794	NASDAQ	CECO	Thu, May 13, 2021	7.07	7.40	7.07	7.35
6793	NASDAQ	CECO	Wed, May 12, 2021	7.43	7.43	7.04	7.07
6792	NASDAQ	CECO	Tue, May 11, 2021	7.17	7.42	7.17	7.29
6791	NASDAQ	CECO	Mon, May 10, 2021	7.35	7.37	7.20	7.26
6790	NASDAQ	CECO	Fri, May 7, 2021	7.20	7.50	7.17	7.38
6789	NASDAQ	CECO	Thu, May 6, 2021	6.96	7.34	6.75	7.15
6788	NASDAQ	CECO	Wed, May 5, 2021	7.45	7.53	7.38	7.47
6787	NASDAQ	CECO	Tue, May 4, 2021	7.50	7.50	7.25	7.44
6786	NASDAQ	CECO	Mon, May 3, 2021	7.33	7.56	7.14	7.53
6785	NASDAQ	CECO	Fri, Apr 30, 2021	7.52	7.53	7.23	7.30
6784	NASDAQ	CECO	Thu, Apr 29, 2021	7.50	7.64	7.48	7.62
6783	NASDAQ	CECO	Wed, Apr 28, 2021	7.61	7.61	7.40	7.44
6782	NASDAQ	CECO	Tue, Apr 27, 2021	7.60	7.96	7.32	7.59
6781	NASDAQ	CECO	Mon, Apr 26, 2021	7.60	7.65	7.54	7.60
6780	NASDAQ	CECO	Fri, Apr 23, 2021	7.60	7.72	7.53	7.58
6779	NASDAQ	CECO	Thu, Apr 22, 2021	7.72	7.72	7.34	7.56
6778	NASDAQ	CECO	Wed, Apr 21, 2021	7.60	7.71	7.59	7.68
6777	NASDAQ	CECO	Tue, Apr 20, 2021	7.81	7.82	7.51	7.63
6776	NASDAQ	CECO	Mon, Apr 19, 2021	7.72	7.83	7.60	7.79
6775	NASDAQ	CECO	Fri, Apr 16, 2021	7.89	7.91	7.64	7.71
6774	NASDAQ	CECO	Thu, Apr 15, 2021	7.86	7.86	7.67	7.85
6773	NASDAQ	CECO	Wed, Apr 14, 2021	7.83	8.01	7.77	7.85
6772	NASDAQ	CECO	Tue, Apr 13, 2021	7.95	8.03	7.82	7.84
6771	NASDAQ	CECO	Mon, Apr 12, 2021	8.22	8.22	7.88	8.00
6770	NASDAQ	CECO	Fri, Apr 9, 2021	8.24	8.24	8.10	8.21
6769	NASDAQ	CECO	Thu, Apr 8, 2021	8.13	8.20	8.09	8.20
6768	NASDAQ	CECO	Wed, Apr 7, 2021	8.13	8.20	8.08	8.13
6767	NASDAQ	CECO	Tue, Apr 6, 2021	8.18	8.25	8.09	8.15
6766	NASDAQ	CECO	Mon, Apr 5, 2021	8.25	8.32	8.16	8.18
6765	NASDAQ	CECO	Thu, Apr 1, 2021	7.93	8.22	7.90	8.16
6764	NASDAQ	CECO	Wed, Mar 31, 2021	8.09	8.19	7.85	7.93
6763	NASDAQ	CECO	Tue, Mar 30, 2021	8.20	8.27	7.97	8.11
6762	NASDAQ	CECO	Mon, Mar 29, 2021	8.13	8.30	8.07	8.15
6761	NASDAQ	CECO	Fri, Mar 26, 2021	7.98	8.20	7.98	8.20
6760	NASDAQ	CECO	Thu, Mar 25, 2021	7.56	7.90	7.35	7.87
6759	NASDAQ	CECO	Wed, Mar 24, 2021	7.78	8.08	7.62	7.63
6758	NASDAQ	CECO	Tue, Mar 23, 2021	8.00	8.00	7.60	7.68
6757	NASDAQ	CECO	Mon, Mar 22, 2021	8.40	8.40	8.02	8.08
6756	NASDAQ	CECO	Fri, Mar 19, 2021	8.53	8.71	8.32	8.32
6755	NASDAQ	CECO	Thu, Mar 18, 2021	8.69	8.86	8.56	8.60
6754	NASDAQ	CECO	Wed, Mar 17, 2021	8.67	8.75	8.63	8.68
6753	NASDAQ	CECO	Tue, Mar 16, 2021	8.97	9.03	8.60	8.67
6752	NASDAQ	CECO	Mon, Mar 15, 2021	9.23	9.47	8.91	8.97
6751	NASDAQ	CECO	Fri, Mar 12, 2021	9.34	9.40	9.16	9.18
6750	NASDAQ	CECO	Thu, Mar 11, 2021	9.22	9.30	9.14	9.26
6749	NASDAQ	CECO	Wed, Mar 10, 2021	9.05	9.24	9.04	9.14
6748	NASDAQ	CECO	Tue, Mar 9, 2021	9.20	9.25	8.97	9.03
6747	NASDAQ	CECO	Mon, Mar 8, 2021	8.65	9.35	8.65	9.33
6746	NASDAQ	CECO	Fri, Mar 5, 2021	8.23	8.71	8.04	8.64
6745	NASDAQ	CECO	Thu, Mar 4, 2021	8.65	8.65	8.03	8.16
6744	NASDAQ	CECO	Wed, Mar 3, 2021	8.75	8.80	8.38	8.52
6743	NASDAQ	CECO	Tue, Mar 2, 2021	8.27	8.42	8.18	8.18
6742	NASDAQ	CECO	Mon, Mar 1, 2021	8.30	8.35	8.14	8.32
6741	NASDAQ	CECO	Fri, Feb 26, 2021	8.17	8.33	8.10	8.20
6740	NASDAQ	CECO	Thu, Feb 25, 2021	8.18	8.34	8.13	8.25
6739	NASDAQ	CECO	Wed, Feb 24, 2021	8.08	8.25	7.92	8.25
6738	NASDAQ	CECO	Tue, Feb 23, 2021	8.00	8.18	7.90	8.00
6737	NASDAQ	CECO	Mon, Feb 22, 2021	7.98	8.13	7.88	8.08
6736	NASDAQ	CECO	Fri, Feb 19, 2021	7.86	8.05	7.70	8.04
6735	NASDAQ	CECO	Thu, Feb 18, 2021	7.99	8.02	7.78	7.80
6734	NASDAQ	CECO	Wed, Feb 17, 2021	8.00	8.05	7.87	8.00
6733	NASDAQ	CECO	Tue, Feb 16, 2021	8.10	8.13	7.90	8.05
6732	NASDAQ	CECO	Fri, Feb 12, 2021	7.91	8.04	7.83	8.03
6731	NASDAQ	CECO	Thu, Feb 11, 2021	7.84	8.00	7.76	7.97
6730	NASDAQ	CECO	Wed, Feb 10, 2021	7.84	7.98	7.68	7.83
6729	NASDAQ	CECO	Tue, Feb 9, 2021	7.55	7.91	7.40	7.82
6728	NASDAQ	CECO	Mon, Feb 8, 2021	7.19	7.63	7.19	7.61
6727	NASDAQ	CECO	Fri, Feb 5, 2021	7.42	7.42	7.07	7.19
6726	NASDAQ	CECO	Thu, Feb 4, 2021	7.25	7.37	7.15	7.37
6725	NASDAQ	CECO	Wed, Feb 3, 2021	7.23	7.33	7.06	7.24
6724	NASDAQ	CECO	Tue, Feb 2, 2021	7.25	7.36	7.07	7.28
6723	NASDAQ	CECO	Mon, Feb 1, 2021	6.95	7.25	6.87	7.20
6722	NASDAQ	CECO	Fri, Jan 29, 2021	7.01	7.12	6.89	6.93
6721	NASDAQ	CECO	Thu, Jan 28, 2021	7.18	7.24	6.89	7.03
6720	NASDAQ	CECO	Wed, Jan 27, 2021	7.31	7.39	7.03	7.07
6719	NASDAQ	CECO	Tue, Jan 26, 2021	7.60	7.68	7.44	7.47
6718	NASDAQ	CECO	Mon, Jan 25, 2021	7.50	7.64	7.31	7.53
6717	NASDAQ	CECO	Fri, Jan 22, 2021	7.56	7.66	7.18	7.49
6716	NASDAQ	CECO	Thu, Jan 21, 2021	7.90	7.91	7.67	7.70
6715	NASDAQ	CECO	Wed, Jan 20, 2021	7.85	7.89	7.78	7.85
6714	NASDAQ	CECO	Tue, Jan 19, 2021	7.74	7.87	7.69	7.81
6713	NASDAQ	CECO	Fri, Jan 15, 2021	7.55	7.65	7.35	7.63
6712	NASDAQ	CECO	Thu, Jan 14, 2021	7.22	7.66	7.18	7.62
6711	NASDAQ	CECO	Wed, Jan 13, 2021	7.24	7.35	7.02	7.17
6710	NASDAQ	CECO	Tue, Jan 12, 2021	6.92	7.32	6.92	7.27
6709	NASDAQ	CECO	Mon, Jan 11, 2021	7.06	7.16	6.78	6.91
6708	NASDAQ	CECO	Fri, Jan 8, 2021	7.34	7.37	7.04	7.25
6707	NASDAQ	CECO	Thu, Jan 7, 2021	7.50	7.60	7.28	7.34
6706	NASDAQ	CECO	Wed, Jan 6, 2021	7.35	7.63	7.28	7.43
6705	NASDAQ	CECO	Tue, Jan 5, 2021	6.87	7.43	6.83	7.14
6704	NASDAQ	CECO	Mon, Jan 4, 2021	7.08	7.12	6.73	6.91
6703	NASDAQ	CECO	Thu, Dec 31, 2020	6.89	7.00	6.76	6.96
6702	NASDAQ	CECO	Wed, Dec 30, 2020	6.79	6.89	6.77	6.85
6701	NASDAQ	CECO	Tue, Dec 29, 2020	6.90	6.93	6.59	6.71
6700	NASDAQ	CECO	Mon, Dec 28, 2020	6.97	7.05	6.87	6.90
6699	NASDAQ	CECO	Thu, Dec 24, 2020	6.76	7.00	6.71	6.85
6698	NASDAQ	CECO	Wed, Dec 23, 2020	6.65	6.86	6.65	6.78
6697	NASDAQ	CECO	Tue, Dec 22, 2020	6.91	6.91	6.58	6.60
6696	NASDAQ	CECO	Mon, Dec 21, 2020	7.05	7.20	6.82	6.92
6695	NASDAQ	CECO	Fri, Dec 18, 2020	7.47	7.56	7.15	7.25
6694	NASDAQ	CECO	Thu, Dec 17, 2020	7.22	7.37	7.14	7.34
6693	NASDAQ	CECO	Wed, Dec 16, 2020	7.45	7.45	7.15	7.17
6692	NASDAQ	CECO	Tue, Dec 15, 2020	7.30	7.48	7.20	7.39
6691	NASDAQ	CECO	Mon, Dec 14, 2020	7.25	7.30	7.25	7.25
6690	NASDAQ	CECO	Fri, Dec 11, 2020	7.23	7.29	7.12	7.21
6689	NASDAQ	CECO	Thu, Dec 10, 2020	7.18	7.34	7.15	7.31
6688	NASDAQ	CECO	Wed, Dec 9, 2020	7.66	7.75	7.22	7.30
6687	NASDAQ	CECO	Tue, Dec 8, 2020	7.50	7.69	7.41	7.56
6686	NASDAQ	CECO	Mon, Dec 7, 2020	7.50	7.63	7.31	7.57
6685	NASDAQ	CECO	Fri, Dec 4, 2020	7.34	7.54	7.32	7.52
6684	NASDAQ	CECO	Thu, Dec 3, 2020	7.47	7.48	7.20	7.25
6683	NASDAQ	CECO	Wed, Dec 2, 2020	7.52	7.66	7.34	7.40
6682	NASDAQ	CECO	Tue, Dec 1, 2020	7.56	7.56	7.40	7.51
6681	NASDAQ	CECO	Mon, Nov 30, 2020	7.69	7.70	7.35	7.40
6680	NASDAQ	CECO	Fri, Nov 27, 2020	7.70	7.71	7.55	7.70
6679	NASDAQ	CECO	Wed, Nov 25, 2020	7.75	7.86	7.39	7.67
6678	NASDAQ	CECO	Tue, Nov 24, 2020	7.50	8.00	7.45	7.75
6677	NASDAQ	CECO	Mon, Nov 23, 2020	7.29	7.45	7.16	7.43
6676	NASDAQ	CECO	Fri, Nov 20, 2020	7.20	7.20	7.06	7.19
6675	NASDAQ	CECO	Thu, Nov 19, 2020	7.29	7.35	7.07	7.29
6674	NASDAQ	CECO	Wed, Nov 18, 2020	7.32	7.47	7.26	7.29
6673	NASDAQ	CECO	Tue, Nov 17, 2020	7.44	7.49	7.22	7.31
6672	NASDAQ	CECO	Mon, Nov 16, 2020	8.01	8.08	7.30	7.47
6671	NASDAQ	CECO	Fri, Nov 13, 2020	7.64	8.00	7.64	7.90
6670	NASDAQ	CECO	Thu, Nov 12, 2020	7.49	7.58	7.33	7.58
6669	NASDAQ	CECO	Wed, Nov 11, 2020	7.68	7.68	7.09	7.59
6668	NASDAQ	CECO	Tue, Nov 10, 2020	6.64	7.89	6.63	7.69
6667	NASDAQ	CECO	Mon, Nov 9, 2020	6.24	6.88	6.24	6.47
6666	NASDAQ	CECO	Fri, Nov 6, 2020	6.35	6.35	5.95	5.97
6665	NASDAQ	CECO	Thu, Nov 5, 2020	6.02	6.36	6.02	6.25
6664	NASDAQ	CECO	Wed, Nov 4, 2020	6.52	6.61	6.03	6.21
6663	NASDAQ	CECO	Tue, Nov 3, 2020	7.20	7.24	6.71	6.76
6662	NASDAQ	CECO	Mon, Nov 2, 2020	7.13	7.30	7.03	7.19
6661	NASDAQ	CECO	Fri, Oct 30, 2020	7.03	7.15	6.88	7.08
6660	NASDAQ	CECO	Thu, Oct 29, 2020	7.05	7.14	6.89	7.09
6659	NASDAQ	CECO	Wed, Oct 28, 2020	7.25	7.38	6.93	7.01
6658	NASDAQ	CECO	Tue, Oct 27, 2020	7.50	7.50	7.40	7.40
6657	NASDAQ	CECO	Mon, Oct 26, 2020	7.60	7.63	7.41	7.54
6656	NASDAQ	CECO	Fri, Oct 23, 2020	7.80	7.83	7.61	7.63
6655	NASDAQ	CECO	Thu, Oct 22, 2020	7.70	7.78	7.61	7.73
6654	NASDAQ	CECO	Wed, Oct 21, 2020	7.82	7.84	7.64	7.66
6653	NASDAQ	CECO	Tue, Oct 20, 2020	7.81	8.15	7.79	7.86
6652	NASDAQ	CECO	Mon, Oct 19, 2020	7.87	7.95	7.62	7.71
6651	NASDAQ	CECO	Fri, Oct 16, 2020	7.78	7.92	7.59	7.86
6650	NASDAQ	CECO	Thu, Oct 15, 2020	7.72	7.87	7.70	7.82
6649	NASDAQ	CECO	Wed, Oct 14, 2020	7.99	7.99	7.78	7.83
6648	NASDAQ	CECO	Tue, Oct 13, 2020	7.98	8.04	7.78	7.96
6647	NASDAQ	CECO	Mon, Oct 12, 2020	7.98	8.21	7.94	8.12
6646	NASDAQ	CECO	Fri, Oct 9, 2020	8.10	8.13	7.94	7.99
6645	NASDAQ	CECO	Thu, Oct 8, 2020	7.98	8.05	7.85	8.00
6644	NASDAQ	CECO	Wed, Oct 7, 2020	7.97	8.10	7.81	7.93
6643	NASDAQ	CECO	Tue, Oct 6, 2020	7.85	8.08	7.62	7.89
6642	NASDAQ	CECO	Mon, Oct 5, 2020	7.47	7.88	7.47	7.76
6641	NASDAQ	CECO	Fri, Oct 2, 2020	7.00	7.54	7.00	7.45
6640	NASDAQ	CECO	Thu, Oct 1, 2020	7.29	7.32	7.04	7.15
6639	NASDAQ	CECO	Wed, Sep 30, 2020	7.37	7.70	7.24	7.29
6638	NASDAQ	CECO	Tue, Sep 29, 2020	7.34	7.37	7.15	7.30
6637	NASDAQ	CECO	Mon, Sep 28, 2020	7.26	7.50	7.26	7.36
6636	NASDAQ	CECO	Fri, Sep 25, 2020	7.07	7.37	6.95	7.14
6635	NASDAQ	CECO	Thu, Sep 24, 2020	7.09	7.24	6.97	7.04
6634	NASDAQ	CECO	Wed, Sep 23, 2020	7.44	7.55	6.99	7.05
6633	NASDAQ	CECO	Tue, Sep 22, 2020	7.62	7.70	7.27	7.39
6632	NASDAQ	CECO	Mon, Sep 21, 2020	8.10	8.20	7.40	7.50
6631	NASDAQ	CECO	Fri, Sep 18, 2020	8.19	8.49	8.12	8.33
6630	NASDAQ	CECO	Thu, Sep 17, 2020	8.26	8.70	7.98	8.02
6629	NASDAQ	CECO	Wed, Sep 16, 2020	8.28	8.52	8.28	8.35
6628	NASDAQ	CECO	Tue, Sep 15, 2020	8.15	8.33	8.07	8.23
6627	NASDAQ	CECO	Mon, Sep 14, 2020	8.11	8.20	7.94	8.05
6626	NASDAQ	CECO	Fri, Sep 11, 2020	8.10	8.29	8.01	8.05
6625	NASDAQ	CECO	Thu, Sep 10, 2020	8.16	8.28	7.93	7.98
6624	NASDAQ	CECO	Wed, Sep 9, 2020	8.16	8.27	8.00	8.10
6623	NASDAQ	CECO	Tue, Sep 8, 2020	8.13	8.32	8.03	8.10
6622	NASDAQ	CECO	Fri, Sep 4, 2020	8.37	8.37	8.10	8.14
6621	NASDAQ	CECO	Thu, Sep 3, 2020	8.59	8.65	8.11	8.19
6620	NASDAQ	CECO	Wed, Sep 2, 2020	8.59	8.60	8.43	8.55
6619	NASDAQ	CECO	Tue, Sep 1, 2020	8.48	8.55	8.40	8.49
6618	NASDAQ	CECO	Mon, Aug 31, 2020	8.46	8.68	8.41	8.48
6617	NASDAQ	CECO	Fri, Aug 28, 2020	8.50	8.56	8.28	8.51
6616	NASDAQ	CECO	Thu, Aug 27, 2020	8.53	8.63	8.34	8.42
6615	NASDAQ	CECO	Wed, Aug 26, 2020	8.50	8.58	8.35	8.44
6614	NASDAQ	CECO	Tue, Aug 25, 2020	8.61	8.61	8.36	8.42
6613	NASDAQ	CECO	Mon, Aug 24, 2020	8.48	8.50	8.34	8.49
6612	NASDAQ	CECO	Fri, Aug 21, 2020	8.44	8.45	8.22	8.40
6611	NASDAQ	CECO	Thu, Aug 20, 2020	8.47	8.53	8.30	8.44
6610	NASDAQ	CECO	Wed, Aug 19, 2020	8.68	8.72	8.55	8.60
6609	NASDAQ	CECO	Tue, Aug 18, 2020	8.89	8.89	8.54	8.60
6608	NASDAQ	CECO	Mon, Aug 17, 2020	9.00	9.00	8.64	8.83
6607	NASDAQ	CECO	Fri, Aug 14, 2020	8.62	9.00	8.62	8.90
6606	NASDAQ	CECO	Thu, Aug 13, 2020	8.75	8.85	8.51	8.61
6605	NASDAQ	CECO	Wed, Aug 12, 2020	8.78	8.99	8.33	8.86
6604	NASDAQ	CECO	Tue, Aug 11, 2020	8.63	8.96	8.57	8.64
6603	NASDAQ	CECO	Mon, Aug 10, 2020	8.03	8.64	7.99	8.46
6602	NASDAQ	CECO	Fri, Aug 7, 2020	7.65	8.23	7.60	8.14
6601	NASDAQ	CECO	Thu, Aug 6, 2020	7.59	7.90	7.50	7.55
6600	NASDAQ	CECO	Wed, Aug 5, 2020	7.49	7.67	7.09	7.40
6599	NASDAQ	CECO	Tue, Aug 4, 2020	6.88	7.03	6.58	6.81
6598	NASDAQ	CECO	Mon, Aug 3, 2020	6.81	6.94	6.68	6.87
6597	NASDAQ	CECO	Fri, Jul 31, 2020	6.92	7.01	6.62	6.70
6596	NASDAQ	CECO	Thu, Jul 30, 2020	6.97	7.17	6.86	7.01
6595	NASDAQ	CECO	Wed, Jul 29, 2020	6.84	7.18	6.84	7.04
6594	NASDAQ	CECO	Tue, Jul 28, 2020	6.72	7.21	6.72	6.73
6593	NASDAQ	CECO	Mon, Jul 27, 2020	7.08	7.14	6.71	6.80
6592	NASDAQ	CECO	Fri, Jul 24, 2020	7.07	7.24	7.02	7.05
6591	NASDAQ	CECO	Thu, Jul 23, 2020	6.82	7.11	6.75	7.07
6590	NASDAQ	CECO	Wed, Jul 22, 2020	6.91	7.00	6.78	6.84
6589	NASDAQ	CECO	Tue, Jul 21, 2020	6.82	7.00	6.81	6.98
6588	NASDAQ	CECO	Mon, Jul 20, 2020	6.78	6.85	6.67	6.69
6587	NASDAQ	CECO	Fri, Jul 17, 2020	6.82	6.99	6.80	6.83
6586	NASDAQ	CECO	Thu, Jul 16, 2020	6.69	6.85	6.56	6.82
6585	NASDAQ	CECO	Wed, Jul 15, 2020	6.47	6.80	6.16	6.69
6584	NASDAQ	CECO	Tue, Jul 14, 2020	6.17	6.38	6.14	6.30
6583	NASDAQ	CECO	Mon, Jul 13, 2020	6.30	6.32	6.15	6.17
6582	NASDAQ	CECO	Fri, Jul 10, 2020	6.04	6.28	6.03	6.19
6581	NASDAQ	CECO	Thu, Jul 9, 2020	6.09	6.18	5.86	5.99
6580	NASDAQ	CECO	Wed, Jul 8, 2020	6.08	6.18	5.92	6.10
6579	NASDAQ	CECO	Tue, Jul 7, 2020	6.27	6.38	6.08	6.11
6578	NASDAQ	CECO	Mon, Jul 6, 2020	6.53	6.58	6.26	6.35
6577	NASDAQ	CECO	Thu, Jul 2, 2020	6.58	6.58	6.31	6.36
6576	NASDAQ	CECO	Wed, Jul 1, 2020	6.59	6.65	6.36	6.41
6575	NASDAQ	CECO	Tue, Jun 30, 2020	6.58	6.71	6.46	6.59
6574	NASDAQ	CECO	Mon, Jun 29, 2020	6.57	6.68	6.46	6.58
6573	NASDAQ	CECO	Fri, Jun 26, 2020	6.05	6.50	5.83	6.42
6572	NASDAQ	CECO	Thu, Jun 25, 2020	6.02	6.18	5.96	6.12
6571	NASDAQ	CECO	Wed, Jun 24, 2020	6.22	6.27	6.03	6.08
6570	NASDAQ	CECO	Tue, Jun 23, 2020	6.38	6.41	6.14	6.36
6569	NASDAQ	CECO	Mon, Jun 22, 2020	6.23	6.31	6.11	6.25
6568	NASDAQ	CECO	Fri, Jun 19, 2020	6.73	6.76	6.26	6.35
6567	NASDAQ	CECO	Thu, Jun 18, 2020	6.66	6.74	6.46	6.65
6566	NASDAQ	CECO	Wed, Jun 17, 2020	6.96	6.99	6.58	6.69
6565	NASDAQ	CECO	Tue, Jun 16, 2020	6.82	7.04	6.60	6.86
6564	NASDAQ	CECO	Mon, Jun 15, 2020	5.82	6.64	5.82	6.63
6563	NASDAQ	CECO	Fri, Jun 12, 2020	6.31	6.36	5.83	6.12
6562	NASDAQ	CECO	Thu, Jun 11, 2020	6.45	6.45	5.93	6.00
6561	NASDAQ	CECO	Wed, Jun 10, 2020	7.09	7.10	6.64	6.82
6560	NASDAQ	CECO	Tue, Jun 9, 2020	7.03	7.21	6.71	7.11
6559	NASDAQ	CECO	Mon, Jun 8, 2020	6.64	7.14	6.61	7.06
6558	NASDAQ	CECO	Fri, Jun 5, 2020	6.00	6.61	5.95	6.47
6557	NASDAQ	CECO	Thu, Jun 4, 2020	5.41	5.79	5.41	5.76
6556	NASDAQ	CECO	Wed, Jun 3, 2020	5.46	5.56	5.43	5.50
6555	NASDAQ	CECO	Tue, Jun 2, 2020	5.26	5.37	5.22	5.31
6554	NASDAQ	CECO	Mon, Jun 1, 2020	5.29	5.50	5.19	5.26
6553	NASDAQ	CECO	Fri, May 29, 2020	5.34	5.44	5.13	5.31
6552	NASDAQ	CECO	Thu, May 28, 2020	5.65	5.65	5.28	5.29
6551	NASDAQ	CECO	Wed, May 27, 2020	5.42	5.57	5.28	5.51
6550	NASDAQ	CECO	Tue, May 26, 2020	5.30	5.35	5.20	5.25
6549	NASDAQ	CECO	Fri, May 22, 2020	5.11	5.22	5.01	5.17
6548	NASDAQ	CECO	Thu, May 21, 2020	5.12	5.18	5.03	5.07
6547	NASDAQ	CECO	Wed, May 20, 2020	4.93	5.20	4.93	5.11
6546	NASDAQ	CECO	Tue, May 19, 2020	5.19	5.19	4.83	4.86
6545	NASDAQ	CECO	Mon, May 18, 2020	5.07	5.25	5.06	5.25
6544	NASDAQ	CECO	Fri, May 15, 2020	4.70	4.85	4.66	4.80
6543	NASDAQ	CECO	Thu, May 14, 2020	4.53	4.74	4.50	4.72
6542	NASDAQ	CECO	Wed, May 13, 2020	4.71	4.78	4.57	4.65
6541	NASDAQ	CECO	Tue, May 12, 2020	4.88	5.01	4.78	4.83
6540	NASDAQ	CECO	Mon, May 11, 2020	4.76	4.93	4.63	4.87
6539	NASDAQ	CECO	Fri, May 8, 2020	4.84	5.15	4.76	4.79
6538	NASDAQ	CECO	Thu, May 7, 2020	4.83	4.91	4.65	4.70
6537	NASDAQ	CECO	Wed, May 6, 2020	5.22	5.30	4.65	4.69
6536	NASDAQ	CECO	Tue, May 5, 2020	4.93	5.09	4.80	4.80
6535	NASDAQ	CECO	Mon, May 4, 2020	5.07	5.16	4.95	4.98
6534	NASDAQ	CECO	Fri, May 1, 2020	5.33	5.36	5.01	5.20
6533	NASDAQ	CECO	Thu, Apr 30, 2020	5.59	5.67	5.35	5.42
6532	NASDAQ	CECO	Wed, Apr 29, 2020	5.40	5.82	5.33	5.77
6531	NASDAQ	CECO	Tue, Apr 28, 2020	5.18	5.29	5.10	5.15
6530	NASDAQ	CECO	Mon, Apr 27, 2020	4.69	5.04	4.69	4.99
6529	NASDAQ	CECO	Fri, Apr 24, 2020	4.69	4.76	4.60	4.68
6528	NASDAQ	CECO	Thu, Apr 23, 2020	4.68	4.83	4.61	4.68
6527	NASDAQ	CECO	Wed, Apr 22, 2020	4.80	4.93	4.57	4.68
6526	NASDAQ	CECO	Tue, Apr 21, 2020	4.52	4.67	4.52	4.64
6525	NASDAQ	CECO	Mon, Apr 20, 2020	4.61	4.80	4.57	4.65
6524	NASDAQ	CECO	Fri, Apr 17, 2020	4.78	4.97	4.75	4.78
6523	NASDAQ	CECO	Thu, Apr 16, 2020	4.87	5.07	4.59	4.64
6522	NASDAQ	CECO	Wed, Apr 15, 2020	4.98	4.98	4.65	4.80
6521	NASDAQ	CECO	Tue, Apr 14, 2020	5.24	5.40	5.04	5.18
6520	NASDAQ	CECO	Mon, Apr 13, 2020	5.21	5.25	4.77	5.10
6519	NASDAQ	CECO	Thu, Apr 9, 2020	5.06	5.24	4.90	5.24
6518	NASDAQ	CECO	Wed, Apr 8, 2020	4.84	4.97	4.73	4.87
6517	NASDAQ	CECO	Tue, Apr 7, 2020	5.00	5.11	4.66	4.69
6516	NASDAQ	CECO	Mon, Apr 6, 2020	4.86	4.94	4.67	4.90
6515	NASDAQ	CECO	Fri, Apr 3, 2020	4.64	4.73	4.44	4.54
6514	NASDAQ	CECO	Thu, Apr 2, 2020	4.50	4.70	4.48	4.67
6513	NASDAQ	CECO	Wed, Apr 1, 2020	4.50	4.59	4.36	4.55
6512	NASDAQ	CECO	Tue, Mar 31, 2020	4.59	4.76	4.48	4.67
6511	NASDAQ	CECO	Mon, Mar 30, 2020	4.78	4.78	4.30	4.62
6510	NASDAQ	CECO	Fri, Mar 27, 2020	4.73	5.20	4.54	4.72
6509	NASDAQ	CECO	Thu, Mar 26, 2020	4.57	5.01	4.56	4.98
6508	NASDAQ	CECO	Wed, Mar 25, 2020	4.45	4.81	4.36	4.46
6507	NASDAQ	CECO	Tue, Mar 24, 2020	4.00	4.54	3.92	4.49
6506	NASDAQ	CECO	Mon, Mar 23, 2020	3.95	4.00	3.65	3.98
6505	NASDAQ	CECO	Fri, Mar 20, 2020	4.23	4.43	3.84	3.94
6504	NASDAQ	CECO	Thu, Mar 19, 2020	3.70	4.62	3.62	4.28
6503	NASDAQ	CECO	Wed, Mar 18, 2020	4.09	4.24	3.53	3.71
6502	NASDAQ	CECO	Tue, Mar 17, 2020	3.77	4.41	3.65	4.36
6501	NASDAQ	CECO	Mon, Mar 16, 2020	4.31	4.64	3.74	3.80
6500	NASDAQ	CECO	Fri, Mar 13, 2020	4.87	5.13	4.63	4.71
6499	NASDAQ	CECO	Thu, Mar 12, 2020	5.02	5.27	4.68	4.71
6498	NASDAQ	CECO	Wed, Mar 11, 2020	5.98	6.10	5.55	5.58
6497	NASDAQ	CECO	Tue, Mar 10, 2020	6.24	6.30	5.81	6.19
6496	NASDAQ	CECO	Mon, Mar 9, 2020	6.14	6.33	5.95	6.03
6495	NASDAQ	CECO	Fri, Mar 6, 2020	6.60	6.75	6.42	6.59
6494	NASDAQ	CECO	Thu, Mar 5, 2020	6.88	7.07	6.62	6.72
6493	NASDAQ	CECO	Wed, Mar 4, 2020	6.81	7.20	6.71	7.14
6492	NASDAQ	CECO	Tue, Mar 3, 2020	6.79	6.89	6.42	6.42
6491	NASDAQ	CECO	Mon, Mar 2, 2020	6.75	6.82	6.55	6.76
6490	NASDAQ	CECO	Fri, Feb 28, 2020	6.86	7.00	6.66	6.75
6489	NASDAQ	CECO	Thu, Feb 27, 2020	7.39	7.48	7.08	7.10
6488	NASDAQ	CECO	Wed, Feb 26, 2020	7.67	7.67	7.43	7.48
6487	NASDAQ	CECO	Tue, Feb 25, 2020	7.73	7.99	7.56	7.62
6486	NASDAQ	CECO	Mon, Feb 24, 2020	7.49	7.79	7.49	7.68
6485	NASDAQ	CECO	Fri, Feb 21, 2020	7.79	7.80	7.70	7.73
6484	NASDAQ	CECO	Thu, Feb 20, 2020	7.71	7.79	7.68	7.74
6483	NASDAQ	CECO	Wed, Feb 19, 2020	7.75	7.84	7.71	7.74
6482	NASDAQ	CECO	Tue, Feb 18, 2020	7.72	7.76	7.69	7.73
6481	NASDAQ	CECO	Fri, Feb 14, 2020	7.71	7.81	7.67	7.72
6480	NASDAQ	CECO	Thu, Feb 13, 2020	7.64	7.81	7.59	7.72
6479	NASDAQ	CECO	Wed, Feb 12, 2020	7.74	7.74	7.54	7.68
6478	NASDAQ	CECO	Tue, Feb 11, 2020	7.71	7.78	7.60	7.69
6477	NASDAQ	CECO	Mon, Feb 10, 2020	7.69	7.75	7.63	7.69
6476	NASDAQ	CECO	Fri, Feb 7, 2020	7.81	7.85	7.64	7.71
6475	NASDAQ	CECO	Thu, Feb 6, 2020	7.85	7.85	7.75	7.84
6474	NASDAQ	CECO	Wed, Feb 5, 2020	7.70	7.90	7.67	7.87
6473	NASDAQ	CECO	Tue, Feb 4, 2020	7.66	7.81	7.64	7.69
6472	NASDAQ	CECO	Mon, Feb 3, 2020	7.65	7.83	7.55	7.57
6471	NASDAQ	CECO	Fri, Jan 31, 2020	7.54	7.67	7.28	7.60
6470	NASDAQ	CECO	Thu, Jan 30, 2020	7.28	7.64	7.26	7.62
6469	NASDAQ	CECO	Wed, Jan 29, 2020	7.47	7.48	7.28	7.33
6468	NASDAQ	CECO	Tue, Jan 28, 2020	7.50	7.51	7.42	7.49
6467	NASDAQ	CECO	Mon, Jan 27, 2020	7.65	7.67	7.47	7.48
6466	NASDAQ	CECO	Fri, Jan 24, 2020	7.91	7.94	7.74	7.77
6465	NASDAQ	CECO	Thu, Jan 23, 2020	7.94	8.01	7.67	7.96
6464	NASDAQ	CECO	Wed, Jan 22, 2020	8.04	8.09	7.91	7.95
6463	NASDAQ	CECO	Tue, Jan 21, 2020	8.00	8.19	8.00	8.09
6462	NASDAQ	CECO	Fri, Jan 17, 2020	8.11	8.11	7.92	7.94
6461	NASDAQ	CECO	Thu, Jan 16, 2020	7.99	8.10	7.97	8.04
6460	NASDAQ	CECO	Wed, Jan 15, 2020	8.10	8.12	7.92	7.95
6459	NASDAQ	CECO	Tue, Jan 14, 2020	7.87	8.13	7.74	8.12
6458	NASDAQ	CECO	Mon, Jan 13, 2020	7.80	7.91	7.73	7.91
6457	NASDAQ	CECO	Fri, Jan 10, 2020	7.79	7.96	7.72	7.80
6456	NASDAQ	CECO	Thu, Jan 9, 2020	7.73	7.97	7.73	7.82
6455	NASDAQ	CECO	Wed, Jan 8, 2020	7.69	7.86	7.62	7.74
6454	NASDAQ	CECO	Tue, Jan 7, 2020	7.77	7.95	7.63	7.69
6453	NASDAQ	CECO	Mon, Jan 6, 2020	7.64	7.88	7.64	7.83
6452	NASDAQ	CECO	Fri, Jan 3, 2020	7.60	7.72	7.59	7.71
6451	NASDAQ	CECO	Thu, Jan 2, 2020	7.65	7.72	7.58	7.68
6450	NASDAQ	CECO	Tue, Dec 31, 2019	7.57	7.70	7.57	7.66
6449	NASDAQ	CECO	Mon, Dec 30, 2019	7.59	7.71	7.55	7.66
6448	NASDAQ	CECO	Fri, Dec 27, 2019	7.70	7.71	7.53	7.62
6447	NASDAQ	CECO	Thu, Dec 26, 2019	7.67	7.77	7.50	7.70
6446	NASDAQ	CECO	Tue, Dec 24, 2019	7.75	7.76	7.58	7.65
6445	NASDAQ	CECO	Mon, Dec 23, 2019	7.87	7.89	7.67	7.73
6444	NASDAQ	CECO	Fri, Dec 20, 2019	7.99	8.01	7.73	7.90
6443	NASDAQ	CECO	Thu, Dec 19, 2019	8.02	8.02	7.88	7.99
6442	NASDAQ	CECO	Wed, Dec 18, 2019	8.13	8.13	8.01	8.04
6441	NASDAQ	CECO	Tue, Dec 17, 2019	8.07	8.18	8.02	8.12
6440	NASDAQ	CECO	Mon, Dec 16, 2019	8.16	8.32	8.04	8.12
6439	NASDAQ	CECO	Fri, Dec 13, 2019	8.14	8.18	7.98	8.12
6438	NASDAQ	CECO	Thu, Dec 12, 2019	7.94	8.37	7.94	8.16
6437	NASDAQ	CECO	Wed, Dec 11, 2019	8.00	8.00	7.91	7.97
6436	NASDAQ	CECO	Tue, Dec 10, 2019	7.94	7.98	7.92	7.97
6435	NASDAQ	CECO	Mon, Dec 9, 2019	7.89	8.05	7.89	7.96
6434	NASDAQ	CECO	Fri, Dec 6, 2019	7.99	8.05	7.89	7.92
6433	NASDAQ	CECO	Thu, Dec 5, 2019	7.86	7.92	7.82	7.87
6432	NASDAQ	CECO	Wed, Dec 4, 2019	7.81	7.91	7.72	7.85
6431	NASDAQ	CECO	Tue, Dec 3, 2019	7.76	7.82	7.67	7.80
6430	NASDAQ	CECO	Mon, Dec 2, 2019	7.89	8.02	7.78	7.82
6429	NASDAQ	CECO	Fri, Nov 29, 2019	7.92	7.93	7.79	7.87
6428	NASDAQ	CECO	Wed, Nov 27, 2019	7.97	8.05	7.89	7.94
6427	NASDAQ	CECO	Tue, Nov 26, 2019	8.00	8.07	7.86	7.99
6426	NASDAQ	CECO	Mon, Nov 25, 2019	7.83	8.07	7.78	8.03
6425	NASDAQ	CECO	Fri, Nov 22, 2019	7.70	7.84	7.64	7.80
6424	NASDAQ	CECO	Thu, Nov 21, 2019	7.92	7.92	7.60	7.66
6423	NASDAQ	CECO	Wed, Nov 20, 2019	7.94	8.08	7.86	7.90
6422	NASDAQ	CECO	Tue, Nov 19, 2019	8.06	8.08	7.87	7.97
6421	NASDAQ	CECO	Mon, Nov 18, 2019	8.08	8.08	7.86	8.04
6420	NASDAQ	CECO	Fri, Nov 15, 2019	8.10	8.18	8.01	8.13
6419	NASDAQ	CECO	Thu, Nov 14, 2019	8.07	8.11	7.90	8.04
6418	NASDAQ	CECO	Wed, Nov 13, 2019	7.86	8.06	7.67	8.04
6417	NASDAQ	CECO	Tue, Nov 12, 2019	7.94	8.03	7.89	7.95
6416	NASDAQ	CECO	Mon, Nov 11, 2019	7.99	7.99	7.88	7.94
6415	NASDAQ	CECO	Fri, Nov 8, 2019	7.75	8.12	7.70	7.99
6414	NASDAQ	CECO	Thu, Nov 7, 2019	7.88	7.96	7.69	7.82
6413	NASDAQ	CECO	Wed, Nov 6, 2019	7.59	7.77	7.41	7.77
6412	NASDAQ	CECO	Tue, Nov 5, 2019	7.20	7.32	7.04	7.14
6411	NASDAQ	CECO	Mon, Nov 4, 2019	7.13	7.29	7.01	7.23
6410	NASDAQ	CECO	Fri, Nov 1, 2019	6.90	7.16	6.86	7.09
6409	NASDAQ	CECO	Thu, Oct 31, 2019	7.09	7.09	6.81	6.86
6408	NASDAQ	CECO	Wed, Oct 30, 2019	7.02	7.10	6.94	7.08
6407	NASDAQ	CECO	Tue, Oct 29, 2019	7.01	7.09	6.97	7.03
6406	NASDAQ	CECO	Mon, Oct 28, 2019	6.84	7.02	6.84	7.01
6405	NASDAQ	CECO	Fri, Oct 25, 2019	6.70	6.84	6.70	6.81
6404	NASDAQ	CECO	Thu, Oct 24, 2019	6.77	6.77	6.63	6.70
6403	NASDAQ	CECO	Wed, Oct 23, 2019	6.81	6.81	6.71	6.77
6402	NASDAQ	CECO	Tue, Oct 22, 2019	6.85	6.92	6.78	6.82
6401	NASDAQ	CECO	Mon, Oct 21, 2019	6.70	6.84	6.70	6.80
6400	NASDAQ	CECO	Fri, Oct 18, 2019	6.62	6.74	6.62	6.69
6399	NASDAQ	CECO	Thu, Oct 17, 2019	6.68	6.78	6.65	6.67
6398	NASDAQ	CECO	Wed, Oct 16, 2019	6.72	6.80	6.65	6.68
6397	NASDAQ	CECO	Tue, Oct 15, 2019	6.72	6.82	6.70	6.76
6396	NASDAQ	CECO	Mon, Oct 14, 2019	6.73	6.79	6.65	6.71
6395	NASDAQ	CECO	Fri, Oct 11, 2019	6.71	6.91	6.71	6.77
6394	NASDAQ	CECO	Thu, Oct 10, 2019	6.90	6.92	6.60	6.62
6393	NASDAQ	CECO	Wed, Oct 9, 2019	6.92	7.00	6.83	6.92
6392	NASDAQ	CECO	Tue, Oct 8, 2019	6.97	7.05	6.82	6.85
6391	NASDAQ	CECO	Mon, Oct 7, 2019	6.75	7.01	6.70	7.00
6390	NASDAQ	CECO	Fri, Oct 4, 2019	6.63	6.76	6.56	6.76
6389	NASDAQ	CECO	Thu, Oct 3, 2019	6.71	6.71	6.53	6.65
6388	NASDAQ	CECO	Wed, Oct 2, 2019	6.67	6.77	6.62	6.75
6387	NASDAQ	CECO	Tue, Oct 1, 2019	7.01	7.11	6.68	6.72
6386	NASDAQ	CECO	Mon, Sep 30, 2019	7.22	7.29	6.98	6.99
6385	NASDAQ	CECO	Fri, Sep 27, 2019	7.24	7.29	7.14	7.19
6384	NASDAQ	CECO	Thu, Sep 26, 2019	7.29	7.34	7.22	7.22
6383	NASDAQ	CECO	Wed, Sep 25, 2019	7.21	7.37	7.16	7.33
6382	NASDAQ	CECO	Tue, Sep 24, 2019	7.44	7.50	7.18	7.20
6381	NASDAQ	CECO	Mon, Sep 23, 2019	7.50	7.51	7.40	7.43
6380	NASDAQ	CECO	Fri, Sep 20, 2019	7.55	7.59	7.45	7.54
6379	NASDAQ	CECO	Thu, Sep 19, 2019	7.57	7.62	7.54	7.56
6378	NASDAQ	CECO	Wed, Sep 18, 2019	7.57	7.64	7.46	7.58
6377	NASDAQ	CECO	Tue, Sep 17, 2019	7.52	7.72	7.37	7.63
6376	NASDAQ	CECO	Mon, Sep 16, 2019	7.54	7.77	7.54	7.55
6375	NASDAQ	CECO	Fri, Sep 13, 2019	7.62	7.77	7.56	7.59
6374	NASDAQ	CECO	Thu, Sep 12, 2019	7.53	7.73	7.46	7.54
6373	NASDAQ	CECO	Wed, Sep 11, 2019	7.23	7.53	7.12	7.52
6372	NASDAQ	CECO	Tue, Sep 10, 2019	7.02	7.27	6.99	7.17
6371	NASDAQ	CECO	Mon, Sep 9, 2019	6.83	7.03	6.82	7.01
6370	NASDAQ	CECO	Fri, Sep 6, 2019	6.95	7.03	6.76	6.80
6369	NASDAQ	CECO	Thu, Sep 5, 2019	6.98	7.20	6.93	6.94
6368	NASDAQ	CECO	Wed, Sep 4, 2019	6.90	6.96	6.86	6.90
6367	NASDAQ	CECO	Tue, Sep 3, 2019	6.91	6.98	6.80	6.82
6366	NASDAQ	CECO	Fri, Aug 30, 2019	7.00	7.00	6.92	6.95
6365	NASDAQ	CECO	Thu, Aug 29, 2019	6.93	7.07	6.93	6.98
6364	NASDAQ	CECO	Wed, Aug 28, 2019	6.80	6.97	6.80	6.88
6363	NASDAQ	CECO	Tue, Aug 27, 2019	7.06	7.06	6.66	6.77
6362	NASDAQ	CECO	Mon, Aug 26, 2019	7.09	7.09	6.95	6.98
6361	NASDAQ	CECO	Fri, Aug 23, 2019	7.10	7.12	7.01	7.02
6360	NASDAQ	CECO	Thu, Aug 22, 2019	7.09	7.19	7.04	7.14
6359	NASDAQ	CECO	Wed, Aug 21, 2019	7.11	7.27	7.05	7.07
6358	NASDAQ	CECO	Tue, Aug 20, 2019	7.06	7.11	7.01	7.05
6357	NASDAQ	CECO	Mon, Aug 19, 2019	7.10	7.18	7.04	7.07
6356	NASDAQ	CECO	Fri, Aug 16, 2019	7.02	7.07	6.95	7.03
6355	NASDAQ	CECO	Thu, Aug 15, 2019	7.06	7.11	6.89	6.97
6354	NASDAQ	CECO	Wed, Aug 14, 2019	7.28	7.35	7.02	7.02
6353	NASDAQ	CECO	Tue, Aug 13, 2019	7.57	7.57	7.37	7.37
6352	NASDAQ	CECO	Mon, Aug 12, 2019	7.55	7.62	7.37	7.56
6351	NASDAQ	CECO	Fri, Aug 9, 2019	8.01	8.01	7.66	7.70
6350	NASDAQ	CECO	Thu, Aug 8, 2019	7.92	7.92	7.69	7.72
6349	NASDAQ	CECO	Wed, Aug 7, 2019	8.13	8.17	7.81	7.94
6348	NASDAQ	CECO	Tue, Aug 6, 2019	8.51	8.71	7.49	8.17
6347	NASDAQ	CECO	Mon, Aug 5, 2019	8.89	8.96	8.53	8.62
6346	NASDAQ	CECO	Fri, Aug 2, 2019	9.09	9.11	8.88	9.02
6345	NASDAQ	CECO	Thu, Aug 1, 2019	9.19	9.51	9.07	9.12
6344	NASDAQ	CECO	Wed, Jul 31, 2019	8.95	9.51	8.95	9.23
6343	NASDAQ	CECO	Tue, Jul 30, 2019	8.90	9.03	8.77	8.98
6342	NASDAQ	CECO	Mon, Jul 29, 2019	8.99	9.16	8.92	8.95
6341	NASDAQ	CECO	Fri, Jul 26, 2019	9.02	9.10	8.87	8.99
6340	NASDAQ	CECO	Thu, Jul 25, 2019	9.02	9.15	8.92	8.98
6339	NASDAQ	CECO	Wed, Jul 24, 2019	8.71	9.00	8.62	8.99
6338	NASDAQ	CECO	Tue, Jul 23, 2019	8.94	8.94	8.67	8.75
6337	NASDAQ	CECO	Mon, Jul 22, 2019	8.88	8.98	8.85	8.88
6336	NASDAQ	CECO	Fri, Jul 19, 2019	8.88	8.96	8.86	8.87
6335	NASDAQ	CECO	Thu, Jul 18, 2019	8.89	8.97	8.81	8.93
6334	NASDAQ	CECO	Wed, Jul 17, 2019	9.12	9.15	8.83	8.91
6333	NASDAQ	CECO	Tue, Jul 16, 2019	9.25	9.36	9.07	9.14
6332	NASDAQ	CECO	Mon, Jul 15, 2019	9.31	9.38	9.09	9.26
6331	NASDAQ	CECO	Fri, Jul 12, 2019	9.25	9.50	9.25	9.33
6330	NASDAQ	CECO	Thu, Jul 11, 2019	9.33	9.42	9.26	9.30
6329	NASDAQ	CECO	Wed, Jul 10, 2019	9.43	9.50	9.32	9.33
6328	NASDAQ	CECO	Tue, Jul 9, 2019	9.53	9.56	9.41	9.43
6327	NASDAQ	CECO	Mon, Jul 8, 2019	9.60	9.73	9.52	9.53
6326	NASDAQ	CECO	Fri, Jul 5, 2019	9.40	9.51	9.21	9.50
6325	NASDAQ	CECO	Wed, Jul 3, 2019	9.60	9.60	9.45	9.46
6324	NASDAQ	CECO	Tue, Jul 2, 2019	9.66	9.66	9.36	9.44
6323	NASDAQ	CECO	Mon, Jul 1, 2019	9.69	9.84	9.50	9.60
6322	NASDAQ	CECO	Fri, Jun 28, 2019	9.32	9.63	9.22	9.59
6321	NASDAQ	CECO	Thu, Jun 27, 2019	9.19	9.43	9.19	9.32
6320	NASDAQ	CECO	Wed, Jun 26, 2019	9.14	9.20	9.06	9.16
6319	NASDAQ	CECO	Tue, Jun 25, 2019	9.20	9.36	9.07	9.12
6318	NASDAQ	CECO	Mon, Jun 24, 2019	9.18	9.26	9.05	9.19
6317	NASDAQ	CECO	Fri, Jun 21, 2019	9.10	9.35	9.07	9.19
6316	NASDAQ	CECO	Thu, Jun 20, 2019	8.98	9.25	8.92	9.14
6315	NASDAQ	CECO	Wed, Jun 19, 2019	8.91	8.93	8.80	8.88
6314	NASDAQ	CECO	Tue, Jun 18, 2019	8.95	9.08	8.88	8.95
6313	NASDAQ	CECO	Mon, Jun 17, 2019	8.92	8.92	8.77	8.86
6312	NASDAQ	CECO	Fri, Jun 14, 2019	9.06	9.08	8.87	8.92
6311	NASDAQ	CECO	Thu, Jun 13, 2019	9.15	9.15	8.93	9.02
6310	NASDAQ	CECO	Wed, Jun 12, 2019	8.95	9.40	8.79	9.16
6309	NASDAQ	CECO	Tue, Jun 11, 2019	9.05	9.27	8.74	8.81
6308	NASDAQ	CECO	Mon, Jun 10, 2019	8.96	9.14	8.51	8.74
6307	NASDAQ	CECO	Fri, Jun 7, 2019	9.01	9.19	8.91	8.94
6306	NASDAQ	CECO	Thu, Jun 6, 2019	9.40	9.42	8.96	8.98
6305	NASDAQ	CECO	Wed, Jun 5, 2019	9.50	9.59	9.29	9.35
6304	NASDAQ	CECO	Tue, Jun 4, 2019	9.28	9.46	9.26	9.45
6303	NASDAQ	CECO	Mon, Jun 3, 2019	8.82	9.32	8.81	9.20
6302	NASDAQ	CECO	Fri, May 31, 2019	8.80	8.89	8.59	8.85
6301	NASDAQ	CECO	Thu, May 30, 2019	8.95	9.03	8.88	8.92
6300	NASDAQ	CECO	Wed, May 29, 2019	9.10	9.21	8.81	8.94
6299	NASDAQ	CECO	Tue, May 28, 2019	9.12	9.34	9.12	9.18
6298	NASDAQ	CECO	Fri, May 24, 2019	9.34	9.40	9.09	9.13
6297	NASDAQ	CECO	Thu, May 23, 2019	9.18	9.31	9.07	9.28
6296	NASDAQ	CECO	Wed, May 22, 2019	9.43	9.54	9.25	9.28
6295	NASDAQ	CECO	Tue, May 21, 2019	9.34	9.51	9.31	9.49
6294	NASDAQ	CECO	Mon, May 20, 2019	9.37	9.40	9.07	9.35
6293	NASDAQ	CECO	Fri, May 17, 2019	9.56	9.62	9.34	9.38
6292	NASDAQ	CECO	Thu, May 16, 2019	9.61	9.74	9.54	9.62
6291	NASDAQ	CECO	Wed, May 15, 2019	9.48	9.66	9.44	9.59
6290	NASDAQ	CECO	Tue, May 14, 2019	9.72	9.72	9.37	9.62
6289	NASDAQ	CECO	Mon, May 13, 2019	9.39	9.80	9.19	9.63
6288	NASDAQ	CECO	Fri, May 10, 2019	9.23	9.43	9.12	9.42
6287	NASDAQ	CECO	Thu, May 9, 2019	8.04	9.65	8.01	9.35
6286	NASDAQ	CECO	Wed, May 8, 2019	8.09	8.48	7.79	8.00
6285	NASDAQ	CECO	Tue, May 7, 2019	7.73	7.85	7.66	7.72
6284	NASDAQ	CECO	Mon, May 6, 2019	7.75	7.90	7.66	7.79
6283	NASDAQ	CECO	Fri, May 3, 2019	7.65	7.88	7.65	7.85
6282	NASDAQ	CECO	Thu, May 2, 2019	7.74	7.82	7.56	7.61
6281	NASDAQ	CECO	Wed, May 1, 2019	7.79	7.85	7.70	7.74
6280	NASDAQ	CECO	Tue, Apr 30, 2019	7.79	7.80	7.66	7.76
6279	NASDAQ	CECO	Mon, Apr 29, 2019	7.78	7.88	7.75	7.81
6278	NASDAQ	CECO	Fri, Apr 26, 2019	7.67	7.79	7.59	7.74
6277	NASDAQ	CECO	Thu, Apr 25, 2019	7.76	7.76	7.51	7.65
6276	NASDAQ	CECO	Wed, Apr 24, 2019	7.89	7.89	7.75	7.78
6275	NASDAQ	CECO	Tue, Apr 23, 2019	7.81	7.88	7.79	7.87
6274	NASDAQ	CECO	Mon, Apr 22, 2019	7.93	7.94	7.80	7.83
6273	NASDAQ	CECO	Thu, Apr 18, 2019	7.78	7.95	7.70	7.87
6272	NASDAQ	CECO	Wed, Apr 17, 2019	7.81	7.89	7.80	7.82
6271	NASDAQ	CECO	Tue, Apr 16, 2019	7.69	7.87	7.69	7.77
6270	NASDAQ	CECO	Mon, Apr 15, 2019	7.65	7.68	7.51	7.65
6269	NASDAQ	CECO	Fri, Apr 12, 2019	7.68	7.69	7.56	7.59
6268	NASDAQ	CECO	Thu, Apr 11, 2019	7.72	7.74	7.61	7.65
6267	NASDAQ	CECO	Wed, Apr 10, 2019	7.63	7.79	7.63	7.72
6266	NASDAQ	CECO	Tue, Apr 9, 2019	7.72	7.77	7.57	7.60
6265	NASDAQ	CECO	Mon, Apr 8, 2019	7.65	7.78	7.52	7.74
6264	NASDAQ	CECO	Fri, Apr 5, 2019	7.60	7.67	7.55	7.60
6263	NASDAQ	CECO	Thu, Apr 4, 2019	7.61	7.74	7.57	7.59
6262	NASDAQ	CECO	Wed, Apr 3, 2019	7.59	7.67	7.51	7.59
6261	NASDAQ	CECO	Tue, Apr 2, 2019	7.25	7.81	7.25	7.55
6260	NASDAQ	CECO	Mon, Apr 1, 2019	7.31	7.33	7.14	7.26
6259	NASDAQ	CECO	Fri, Mar 29, 2019	7.27	7.35	7.18	7.20
6258	NASDAQ	CECO	Thu, Mar 28, 2019	7.32	7.38	7.14	7.19
6257	NASDAQ	CECO	Wed, Mar 27, 2019	7.46	7.54	7.31	7.33
6256	NASDAQ	CECO	Tue, Mar 26, 2019	7.41	7.62	7.38	7.47
6255	NASDAQ	CECO	Mon, Mar 25, 2019	7.26	7.43	7.01	7.36
6254	NASDAQ	CECO	Fri, Mar 22, 2019	7.50	7.51	7.23	7.29
6253	NASDAQ	CECO	Thu, Mar 21, 2019	7.29	7.60	7.29	7.51
6252	NASDAQ	CECO	Wed, Mar 20, 2019	7.56	7.63	7.29	7.30
6251	NASDAQ	CECO	Tue, Mar 19, 2019	7.77	7.87	7.47	7.56
6250	NASDAQ	CECO	Mon, Mar 18, 2019	7.54	7.82	7.50	7.73
6249	NASDAQ	CECO	Fri, Mar 15, 2019	7.72	7.88	7.52	7.54
6248	NASDAQ	CECO	Thu, Mar 14, 2019	7.85	7.85	7.69	7.71
6247	NASDAQ	CECO	Wed, Mar 13, 2019	7.92	7.92	7.58	7.75
6246	NASDAQ	CECO	Tue, Mar 12, 2019	7.55	7.88	7.55	7.82
6245	NASDAQ	CECO	Mon, Mar 11, 2019	7.32	7.50	7.22	7.48
6244	NASDAQ	CECO	Fri, Mar 8, 2019	7.15	7.27	6.85	7.24
6243	NASDAQ	CECO	Thu, Mar 7, 2019	7.35	7.82	7.27	7.27
6242	NASDAQ	CECO	Wed, Mar 6, 2019	7.73	7.74	7.39	7.49
6241	NASDAQ	CECO	Tue, Mar 5, 2019	7.70	7.79	7.65	7.72
6240	NASDAQ	CECO	Mon, Mar 4, 2019	7.83	7.97	7.68	7.70
6239	NASDAQ	CECO	Fri, Mar 1, 2019	7.68	7.84	7.48	7.84
6238	NASDAQ	CECO	Thu, Feb 28, 2019	7.60	7.74	7.60	7.62
6237	NASDAQ	CECO	Wed, Feb 27, 2019	7.60	7.69	7.58	7.61
6236	NASDAQ	CECO	Tue, Feb 26, 2019	7.57	7.74	7.49	7.61
6235	NASDAQ	CECO	Mon, Feb 25, 2019	7.52	7.68	7.52	7.57
6234	NASDAQ	CECO	Fri, Feb 22, 2019	7.33	7.52	7.26	7.49
6233	NASDAQ	CECO	Thu, Feb 21, 2019	7.37	7.37	7.23	7.32
6232	NASDAQ	CECO	Wed, Feb 20, 2019	7.41	7.50	7.30	7.32
6231	NASDAQ	CECO	Tue, Feb 19, 2019	7.40	7.54	7.15	7.41
6230	NASDAQ	CECO	Fri, Feb 15, 2019	7.16	7.48	7.09	7.38
6229	NASDAQ	CECO	Thu, Feb 14, 2019	7.14	7.20	7.09	7.09
6228	NASDAQ	CECO	Wed, Feb 13, 2019	7.22	7.30	7.14	7.16
6227	NASDAQ	CECO	Tue, Feb 12, 2019	7.12	7.27	7.02	7.21
6226	NASDAQ	CECO	Mon, Feb 11, 2019	6.92	7.04	6.92	6.99
6225	NASDAQ	CECO	Fri, Feb 8, 2019	7.02	7.02	6.89	6.98
6224	NASDAQ	CECO	Thu, Feb 7, 2019	7.09	7.14	6.98	7.00
6223	NASDAQ	CECO	Wed, Feb 6, 2019	7.12	7.18	7.06	7.11
6222	NASDAQ	CECO	Tue, Feb 5, 2019	7.00	7.18	7.00	7.14
6221	NASDAQ	CECO	Mon, Feb 4, 2019	6.95	7.08	6.91	6.99
6220	NASDAQ	CECO	Fri, Feb 1, 2019	6.91	6.94	6.77	6.94
6219	NASDAQ	CECO	Thu, Jan 31, 2019	6.88	7.05	6.84	6.88
6218	NASDAQ	CECO	Wed, Jan 30, 2019	6.63	6.93	6.59	6.87
6217	NASDAQ	CECO	Tue, Jan 29, 2019	6.62	6.69	6.50	6.56
6216	NASDAQ	CECO	Mon, Jan 28, 2019	6.80	6.80	6.57	6.64
6215	NASDAQ	CECO	Fri, Jan 25, 2019	6.85	6.98	6.81	6.84
6214	NASDAQ	CECO	Thu, Jan 24, 2019	6.85	6.94	6.84	6.91
6213	NASDAQ	CECO	Wed, Jan 23, 2019	7.00	7.08	6.88	6.89
6212	NASDAQ	CECO	Tue, Jan 22, 2019	6.99	7.10	6.95	7.01
6211	NASDAQ	CECO	Fri, Jan 18, 2019	7.04	7.12	7.02	7.06
6210	NASDAQ	CECO	Thu, Jan 17, 2019	7.07	7.16	7.00	7.03
6209	NASDAQ	CECO	Wed, Jan 16, 2019	7.31	7.51	7.07	7.10
6208	NASDAQ	CECO	Tue, Jan 15, 2019	7.28	7.31	7.17	7.30
6207	NASDAQ	CECO	Mon, Jan 14, 2019	7.18	7.32	7.18	7.29
6206	NASDAQ	CECO	Fri, Jan 11, 2019	7.22	7.33	7.22	7.30
6205	NASDAQ	CECO	Thu, Jan 10, 2019	7.22	7.36	7.21	7.27
6204	NASDAQ	CECO	Wed, Jan 9, 2019	7.12	7.28	7.08	7.27
6203	NASDAQ	CECO	Tue, Jan 8, 2019	7.09	7.12	6.95	7.10
6202	NASDAQ	CECO	Mon, Jan 7, 2019	6.88	7.16	6.85	7.03
6201	NASDAQ	CECO	Fri, Jan 4, 2019	6.89	7.00	6.81	6.89
6200	NASDAQ	CECO	Thu, Jan 3, 2019	6.75	6.93	6.73	6.78
6199	NASDAQ	CECO	Wed, Jan 2, 2019	6.74	6.89	6.57	6.85
6198	NASDAQ	CECO	Mon, Dec 31, 2018	6.67	6.82	6.52	6.75
6197	NASDAQ	CECO	Fri, Dec 28, 2018	6.63	6.73	6.52	6.60
6196	NASDAQ	CECO	Thu, Dec 27, 2018	6.63	6.77	6.44	6.63
6195	NASDAQ	CECO	Wed, Dec 26, 2018	6.68	6.77	6.49	6.76
6194	NASDAQ	CECO	Mon, Dec 24, 2018	6.66	6.83	6.51	6.63
6193	NASDAQ	CECO	Fri, Dec 21, 2018	7.06	7.09	6.75	6.81
6192	NASDAQ	CECO	Thu, Dec 20, 2018	7.28	7.34	7.00	7.08
6191	NASDAQ	CECO	Wed, Dec 19, 2018	7.58	7.60	7.25	7.27
6190	NASDAQ	CECO	Tue, Dec 18, 2018	7.72	7.72	7.55	7.57
6189	NASDAQ	CECO	Mon, Dec 17, 2018	7.37	7.62	7.37	7.54
6188	NASDAQ	CECO	Fri, Dec 14, 2018	7.60	7.68	7.33	7.38
6187	NASDAQ	CECO	Thu, Dec 13, 2018	7.68	7.68	7.45	7.53
6186	NASDAQ	CECO	Wed, Dec 12, 2018	7.54	7.96	7.26	7.69
6185	NASDAQ	CECO	Tue, Dec 11, 2018	7.94	8.14	7.49	7.52
6184	NASDAQ	CECO	Mon, Dec 10, 2018	8.01	8.01	7.76	7.81
6183	NASDAQ	CECO	Fri, Dec 7, 2018	8.07	8.33	8.00	8.02
6182	NASDAQ	CECO	Thu, Dec 6, 2018	7.99	8.10	7.75	8.06
6181	NASDAQ	CECO	Tue, Dec 4, 2018	8.41	8.56	7.95	7.99
6180	NASDAQ	CECO	Mon, Dec 3, 2018	8.38	8.69	8.28	8.46
6179	NASDAQ	CECO	Fri, Nov 30, 2018	8.09	8.50	8.08	8.31
6178	NASDAQ	CECO	Thu, Nov 29, 2018	7.97	8.14	7.76	8.04
6177	NASDAQ	CECO	Wed, Nov 28, 2018	7.82	8.04	7.70	7.90
6176	NASDAQ	CECO	Tue, Nov 27, 2018	7.82	7.94	7.74	7.81
6175	NASDAQ	CECO	Mon, Nov 26, 2018	8.17	8.24	7.68	7.86
6174	NASDAQ	CECO	Fri, Nov 23, 2018	8.05	8.27	8.05	8.13
6173	NASDAQ	CECO	Wed, Nov 21, 2018	8.07	8.24	8.07	8.17
6172	NASDAQ	CECO	Tue, Nov 20, 2018	8.21	8.33	7.97	8.05
6171	NASDAQ	CECO	Mon, Nov 19, 2018	8.39	8.40	8.13	8.24
6170	NASDAQ	CECO	Fri, Nov 16, 2018	8.08	8.41	7.96	8.35
6169	NASDAQ	CECO	Thu, Nov 15, 2018	7.96	8.28	7.96	8.12
6168	NASDAQ	CECO	Wed, Nov 14, 2018	8.54	8.54	7.86	8.01
6167	NASDAQ	CECO	Tue, Nov 13, 2018	7.85	8.52	7.85	8.50
6166	NASDAQ	CECO	Mon, Nov 12, 2018	7.83	8.07	7.63	7.79
6165	NASDAQ	CECO	Fri, Nov 9, 2018	8.07	8.14	7.80	7.82
6164	NASDAQ	CECO	Thu, Nov 8, 2018	8.22	8.26	7.82	8.08
6163	NASDAQ	CECO	Wed, Nov 7, 2018	8.58	8.58	8.01	8.33
6162	NASDAQ	CECO	Tue, Nov 6, 2018	7.62	8.06	7.56	8.05
6161	NASDAQ	CECO	Mon, Nov 5, 2018	7.64	7.89	7.60	7.64
6160	NASDAQ	CECO	Fri, Nov 2, 2018	7.53	7.66	7.51	7.61
6159	NASDAQ	CECO	Thu, Nov 1, 2018	7.45	7.60	7.45	7.51
6158	NASDAQ	CECO	Wed, Oct 31, 2018	7.50	7.50	7.36	7.44
6157	NASDAQ	CECO	Tue, Oct 30, 2018	7.20	7.45	7.15	7.44
6156	NASDAQ	CECO	Mon, Oct 29, 2018	7.33	7.34	7.15	7.21
6155	NASDAQ	CECO	Fri, Oct 26, 2018	7.20	7.31	6.96	7.22
6154	NASDAQ	CECO	Thu, Oct 25, 2018	7.29	7.38	7.20	7.27
6153	NASDAQ	CECO	Wed, Oct 24, 2018	7.37	7.50	7.23	7.25
6152	NASDAQ	CECO	Tue, Oct 23, 2018	7.09	7.45	7.09	7.36
6151	NASDAQ	CECO	Mon, Oct 22, 2018	7.36	7.43	7.30	7.41
6150	NASDAQ	CECO	Fri, Oct 19, 2018	7.39	7.45	7.25	7.35
6149	NASDAQ	CECO	Thu, Oct 18, 2018	7.63	7.97	7.38	7.40
6148	NASDAQ	CECO	Wed, Oct 17, 2018	7.79	7.79	7.59	7.67
6147	NASDAQ	CECO	Tue, Oct 16, 2018	7.52	7.82	7.51	7.80
6146	NASDAQ	CECO	Mon, Oct 15, 2018	7.38	7.57	7.29	7.51
6145	NASDAQ	CECO	Fri, Oct 12, 2018	7.67	7.69	7.37	7.37
6144	NASDAQ	CECO	Thu, Oct 11, 2018	7.66	7.78	7.55	7.55
6143	NASDAQ	CECO	Wed, Oct 10, 2018	7.82	7.88	7.70	7.70
6142	NASDAQ	CECO	Tue, Oct 9, 2018	7.76	7.98	7.75	7.86
6141	NASDAQ	CECO	Mon, Oct 8, 2018	7.79	7.86	7.75	7.77
6140	NASDAQ	CECO	Fri, Oct 5, 2018	7.80	7.91	7.56	7.79
6139	NASDAQ	CECO	Thu, Oct 4, 2018	7.98	8.06	7.74	7.77
6138	NASDAQ	CECO	Wed, Oct 3, 2018	7.83	8.16	7.81	8.10
6137	NASDAQ	CECO	Tue, Oct 2, 2018	7.85	7.90	7.79	7.81
6136	NASDAQ	CECO	Mon, Oct 1, 2018	7.91	7.95	7.84	7.85
6135	NASDAQ	CECO	Fri, Sep 28, 2018	7.73	7.95	7.73	7.88
6134	NASDAQ	CECO	Thu, Sep 27, 2018	7.83	7.95	7.72	7.75
6133	NASDAQ	CECO	Wed, Sep 26, 2018	7.80	7.96	7.80	7.82
6132	NASDAQ	CECO	Tue, Sep 25, 2018	7.86	7.86	7.77	7.80
6131	NASDAQ	CECO	Mon, Sep 24, 2018	8.08	8.08	7.78	7.85
6130	NASDAQ	CECO	Fri, Sep 21, 2018	8.21	8.21	8.08	8.10
6129	NASDAQ	CECO	Thu, Sep 20, 2018	8.13	8.36	8.10	8.23
6128	NASDAQ	CECO	Wed, Sep 19, 2018	8.02	8.18	8.00	8.08
6127	NASDAQ	CECO	Tue, Sep 18, 2018	8.05	8.27	7.99	8.05
6126	NASDAQ	CECO	Mon, Sep 17, 2018	8.25	8.36	8.01	8.02
6125	NASDAQ	CECO	Fri, Sep 14, 2018	8.21	8.32	8.15	8.20
6124	NASDAQ	CECO	Thu, Sep 13, 2018	8.25	8.33	8.13	8.23
6123	NASDAQ	CECO	Wed, Sep 12, 2018	8.27	8.29	8.11	8.21
6122	NASDAQ	CECO	Tue, Sep 11, 2018	8.23	8.38	8.19	8.28
6121	NASDAQ	CECO	Mon, Sep 10, 2018	8.50	8.50	8.22	8.28
6120	NASDAQ	CECO	Fri, Sep 7, 2018	8.36	8.56	8.35	8.47
6119	NASDAQ	CECO	Thu, Sep 6, 2018	8.29	8.44	8.20	8.39
6118	NASDAQ	CECO	Wed, Sep 5, 2018	8.41	8.45	8.17	8.29
6117	NASDAQ	CECO	Tue, Sep 4, 2018	8.42	8.46	8.22	8.42
6116	NASDAQ	CECO	Fri, Aug 31, 2018	8.44	8.48	8.38	8.44
6115	NASDAQ	CECO	Thu, Aug 30, 2018	8.38	8.52	8.32	8.44
6114	NASDAQ	CECO	Wed, Aug 29, 2018	8.28	8.44	8.17	8.36
6113	NASDAQ	CECO	Tue, Aug 28, 2018	8.42	8.47	8.25	8.32
6112	NASDAQ	CECO	Mon, Aug 27, 2018	8.55	8.59	8.41	8.43
6111	NASDAQ	CECO	Fri, Aug 24, 2018	8.39	8.57	8.34	8.53
6110	NASDAQ	CECO	Thu, Aug 23, 2018	8.43	8.50	8.33	8.40
6109	NASDAQ	CECO	Wed, Aug 22, 2018	8.60	8.64	8.40	8.44
6108	NASDAQ	CECO	Tue, Aug 21, 2018	8.48	8.70	8.43	8.59
6107	NASDAQ	CECO	Mon, Aug 20, 2018	8.78	8.93	8.37	8.46
6106	NASDAQ	CECO	Fri, Aug 17, 2018	8.52	8.85	8.52	8.79
6105	NASDAQ	CECO	Thu, Aug 16, 2018	8.56	8.69	8.52	8.56
6104	NASDAQ	CECO	Wed, Aug 15, 2018	8.89	8.91	8.46	8.50
6103	NASDAQ	CECO	Tue, Aug 14, 2018	8.73	9.18	8.73	8.91
6102	NASDAQ	CECO	Mon, Aug 13, 2018	8.68	8.88	8.66	8.73
6101	NASDAQ	CECO	Fri, Aug 10, 2018	8.18	8.71	8.18	8.62
6100	NASDAQ	CECO	Thu, Aug 9, 2018	8.10	8.70	8.05	8.08
6099	NASDAQ	CECO	Wed, Aug 8, 2018	7.30	8.24	7.02	8.00
6098	NASDAQ	CECO	Tue, Aug 7, 2018	6.98	7.07	6.87	6.95
6097	NASDAQ	CECO	Mon, Aug 6, 2018	6.74	6.96	6.69	6.94
6096	NASDAQ	CECO	Fri, Aug 3, 2018	6.86	6.92	6.69	6.74
6095	NASDAQ	CECO	Thu, Aug 2, 2018	6.81	6.98	6.80	6.87
6094	NASDAQ	CECO	Wed, Aug 1, 2018	6.88	6.92	6.69	6.86
6093	NASDAQ	CECO	Tue, Jul 31, 2018	6.60	7.01	6.59	6.87
6092	NASDAQ	CECO	Mon, Jul 30, 2018	6.59	6.77	6.55	6.57
6091	NASDAQ	CECO	Fri, Jul 27, 2018	6.85	6.94	6.53	6.58
6090	NASDAQ	CECO	Thu, Jul 26, 2018	6.78	6.91	6.77	6.85
6089	NASDAQ	CECO	Wed, Jul 25, 2018	6.76	6.80	6.69	6.75
6088	NASDAQ	CECO	Tue, Jul 24, 2018	6.73	6.86	6.68	6.76
6087	NASDAQ	CECO	Mon, Jul 23, 2018	6.82	6.94	6.62	6.73
6086	NASDAQ	CECO	Fri, Jul 20, 2018	6.91	7.02	6.74	6.78
6085	NASDAQ	CECO	Thu, Jul 19, 2018	6.65	7.06	6.65	6.93
6084	NASDAQ	CECO	Wed, Jul 18, 2018	6.52	6.68	6.44	6.66
6083	NASDAQ	CECO	Tue, Jul 17, 2018	6.51	6.60	6.49	6.53
6082	NASDAQ	CECO	Mon, Jul 16, 2018	6.69	6.69	6.47	6.52
6081	NASDAQ	CECO	Fri, Jul 13, 2018	6.55	6.69	6.54	6.66
6080	NASDAQ	CECO	Thu, Jul 12, 2018	6.51	6.55	6.43	6.54
6079	NASDAQ	CECO	Wed, Jul 11, 2018	6.44	6.51	6.40	6.47
6078	NASDAQ	CECO	Tue, Jul 10, 2018	6.60	6.63	6.45	6.48
6077	NASDAQ	CECO	Mon, Jul 9, 2018	6.50	6.66	6.50	6.60
6076	NASDAQ	CECO	Fri, Jul 6, 2018	6.39	6.55	6.37	6.47
6075	NASDAQ	CECO	Thu, Jul 5, 2018	6.27	6.45	6.23	6.37
6074	NASDAQ	CECO	Tue, Jul 3, 2018	6.34	6.37	6.24	6.25
6073	NASDAQ	CECO	Mon, Jul 2, 2018	6.11	6.29	6.08	6.27
6072	NASDAQ	CECO	Fri, Jun 29, 2018	6.19	6.28	6.08	6.14
6071	NASDAQ	CECO	Thu, Jun 28, 2018	6.16	6.24	6.09	6.17
6070	NASDAQ	CECO	Wed, Jun 27, 2018	6.37	6.46	6.14	6.15
6069	NASDAQ	CECO	Tue, Jun 26, 2018	6.04	6.44	6.03	6.37
6068	NASDAQ	CECO	Mon, Jun 25, 2018	6.08	6.09	5.83	6.03
6067	NASDAQ	CECO	Fri, Jun 22, 2018	6.09	6.10	5.99	6.08
6066	NASDAQ	CECO	Thu, Jun 21, 2018	6.12	6.19	5.97	6.06
6065	NASDAQ	CECO	Wed, Jun 20, 2018	6.25	6.33	6.11	6.11
6064	NASDAQ	CECO	Tue, Jun 19, 2018	6.09	6.26	5.98	6.24
6063	NASDAQ	CECO	Mon, Jun 18, 2018	6.13	6.18	6.06	6.10
6062	NASDAQ	CECO	Fri, Jun 15, 2018	6.14	6.21	6.04	6.15
6061	NASDAQ	CECO	Thu, Jun 14, 2018	6.10	6.21	6.03	6.14
6060	NASDAQ	CECO	Wed, Jun 13, 2018	6.22	6.27	5.86	6.10
6059	NASDAQ	CECO	Tue, Jun 12, 2018	6.32	6.32	6.16	6.24
6058	NASDAQ	CECO	Mon, Jun 11, 2018	6.37	6.45	6.31	6.32
6057	NASDAQ	CECO	Fri, Jun 8, 2018	6.39	6.48	6.19	6.34
6056	NASDAQ	CECO	Thu, Jun 7, 2018	6.87	6.87	6.34	6.40
6055	NASDAQ	CECO	Wed, Jun 6, 2018	6.33	7.03	6.33	6.89
6054	NASDAQ	CECO	Tue, Jun 5, 2018	5.93	6.43	5.91	6.32
6053	NASDAQ	CECO	Mon, Jun 4, 2018	5.85	5.92	5.81	5.90
6052	NASDAQ	CECO	Fri, Jun 1, 2018	5.73	5.87	5.71	5.84
6051	NASDAQ	CECO	Thu, May 31, 2018	5.91	5.94	5.67	5.71
6050	NASDAQ	CECO	Wed, May 30, 2018	5.80	5.98	5.80	5.91
6049	NASDAQ	CECO	Tue, May 29, 2018	5.94	6.00	5.73	5.84
6048	NASDAQ	CECO	Fri, May 25, 2018	6.02	6.03	5.90	5.97
6047	NASDAQ	CECO	Thu, May 24, 2018	6.04	6.07	5.95	6.03
6046	NASDAQ	CECO	Wed, May 23, 2018	6.22	6.29	6.03	6.05
6045	NASDAQ	CECO	Tue, May 22, 2018	6.29	6.38	6.18	6.19
6044	NASDAQ	CECO	Mon, May 21, 2018	6.36	6.47	6.22	6.27
6043	NASDAQ	CECO	Fri, May 18, 2018	6.59	6.68	6.31	6.34
6042	NASDAQ	CECO	Thu, May 17, 2018	6.21	6.65	6.21	6.59
6041	NASDAQ	CECO	Wed, May 16, 2018	6.22	6.32	6.19	6.24
6040	NASDAQ	CECO	Tue, May 15, 2018	6.02	6.39	5.85	6.18
6039	NASDAQ	CECO	Mon, May 14, 2018	5.86	6.31	5.76	6.05
6038	NASDAQ	CECO	Fri, May 11, 2018	5.57	6.03	5.17	5.87
6037	NASDAQ	CECO	Thu, May 10, 2018	4.51	5.89	4.51	5.71
6036	NASDAQ	CECO	Wed, May 9, 2018	4.49	4.61	4.43	4.52
6035	NASDAQ	CECO	Tue, May 8, 2018	4.61	4.79	4.44	4.47
6034	NASDAQ	CECO	Mon, May 7, 2018	4.67	4.76	4.61	4.62
6033	NASDAQ	CECO	Fri, May 4, 2018	4.65	4.80	4.65	4.68
6032	NASDAQ	CECO	Thu, May 3, 2018	4.72	4.72	4.63	4.67
6031	NASDAQ	CECO	Wed, May 2, 2018	4.77	4.80	4.73	4.75
6030	NASDAQ	CECO	Tue, May 1, 2018	4.68	4.81	4.62	4.80
6029	NASDAQ	CECO	Mon, Apr 30, 2018	4.62	4.73	4.57	4.70
6028	NASDAQ	CECO	Fri, Apr 27, 2018	4.57	4.64	4.48	4.62
6027	NASDAQ	CECO	Thu, Apr 26, 2018	4.61	4.64	4.47	4.58
6026	NASDAQ	CECO	Wed, Apr 25, 2018	4.65	4.67	4.57	4.62
6025	NASDAQ	CECO	Tue, Apr 24, 2018	4.68	4.71	4.56	4.64
6024	NASDAQ	CECO	Mon, Apr 23, 2018	4.92	4.95	4.64	4.64
6023	NASDAQ	CECO	Fri, Apr 20, 2018	4.92	4.98	4.86	4.90
6022	NASDAQ	CECO	Thu, Apr 19, 2018	4.92	4.98	4.90	4.95
6021	NASDAQ	CECO	Wed, Apr 18, 2018	4.86	4.99	4.84	4.95
6020	NASDAQ	CECO	Tue, Apr 17, 2018	4.67	4.88	4.62	4.85
6019	NASDAQ	CECO	Mon, Apr 16, 2018	4.70	4.75	4.58	4.65
6018	NASDAQ	CECO	Fri, Apr 13, 2018	4.63	4.69	4.58	4.67
6017	NASDAQ	CECO	Thu, Apr 12, 2018	4.66	4.68	4.60	4.61
6016	NASDAQ	CECO	Wed, Apr 11, 2018	4.62	4.67	4.56	4.62
6015	NASDAQ	CECO	Tue, Apr 10, 2018	4.66	4.74	4.64	4.65
6014	NASDAQ	CECO	Mon, Apr 9, 2018	4.67	4.73	4.55	4.63
6013	NASDAQ	CECO	Fri, Apr 6, 2018	4.65	4.74	4.57	4.64
6012	NASDAQ	CECO	Thu, Apr 5, 2018	4.69	4.74	4.58	4.70
6011	NASDAQ	CECO	Wed, Apr 4, 2018	4.43	4.69	4.43	4.66
6010	NASDAQ	CECO	Tue, Apr 3, 2018	4.46	4.55	4.43	4.50
6009	NASDAQ	CECO	Mon, Apr 2, 2018	4.42	4.61	4.37	4.44
6008	NASDAQ	CECO	Thu, Mar 29, 2018	4.61	4.70	4.44	4.45
6007	NASDAQ	CECO	Wed, Mar 28, 2018	4.51	4.64	4.48	4.59
6006	NASDAQ	CECO	Tue, Mar 27, 2018	4.60	4.66	4.51	4.51
6005	NASDAQ	CECO	Mon, Mar 26, 2018	4.76	4.81	4.54	4.59
6004	NASDAQ	CECO	Fri, Mar 23, 2018	4.68	4.76	4.66	4.70
6003	NASDAQ	CECO	Thu, Mar 22, 2018	4.76	4.97	4.68	4.71
6002	NASDAQ	CECO	Wed, Mar 21, 2018	4.90	4.96	4.80	4.80
6001	NASDAQ	CECO	Tue, Mar 20, 2018	5.09	5.16	4.87	4.90
6000	NASDAQ	CECO	Mon, Mar 19, 2018	5.12	5.12	4.90	5.09
5999	NASDAQ	CECO	Fri, Mar 16, 2018	5.02	5.25	4.99	5.11
5998	NASDAQ	CECO	Thu, Mar 15, 2018	5.05	5.08	5.00	5.03
5997	NASDAQ	CECO	Wed, Mar 14, 2018	5.12	5.12	4.97	5.06
5996	NASDAQ	CECO	Tue, Mar 13, 2018	5.32	5.32	5.06	5.11
5995	NASDAQ	CECO	Mon, Mar 12, 2018	4.65	5.42	4.65	5.26
5994	NASDAQ	CECO	Fri, Mar 9, 2018	4.13	4.65	4.05	4.62
5993	NASDAQ	CECO	Thu, Mar 8, 2018	4.18	4.23	4.04	4.11
5992	NASDAQ	CECO	Wed, Mar 7, 2018	4.12	4.28	4.11	4.24
5991	NASDAQ	CECO	Tue, Mar 6, 2018	4.11	4.22	4.02	4.14
5990	NASDAQ	CECO	Mon, Mar 5, 2018	4.17	4.20	4.05	4.09
5989	NASDAQ	CECO	Fri, Mar 2, 2018	4.04	4.22	4.00	4.18
5988	NASDAQ	CECO	Thu, Mar 1, 2018	4.12	4.19	4.04	4.08
5987	NASDAQ	CECO	Wed, Feb 28, 2018	4.31	4.33	4.10	4.11
5986	NASDAQ	CECO	Tue, Feb 27, 2018	4.37	4.46	4.30	4.30
5985	NASDAQ	CECO	Mon, Feb 26, 2018	4.42	4.45	4.30	4.38
5984	NASDAQ	CECO	Fri, Feb 23, 2018	4.36	4.41	4.25	4.39
5983	NASDAQ	CECO	Thu, Feb 22, 2018	4.40	4.45	4.32	4.34
5982	NASDAQ	CECO	Wed, Feb 21, 2018	4.38	4.54	4.35	4.39
5981	NASDAQ	CECO	Tue, Feb 20, 2018	4.44	4.49	4.31	4.39
5980	NASDAQ	CECO	Fri, Feb 16, 2018	4.46	4.59	4.46	4.48
5979	NASDAQ	CECO	Thu, Feb 15, 2018	4.25	4.50	4.22	4.47
5978	NASDAQ	CECO	Wed, Feb 14, 2018	4.09	4.29	4.08	4.23
5977	NASDAQ	CECO	Tue, Feb 13, 2018	4.27	4.33	4.10	4.12
5976	NASDAQ	CECO	Mon, Feb 12, 2018	4.25	4.33	4.12	4.27
5975	NASDAQ	CECO	Fri, Feb 9, 2018	4.14	4.30	4.09	4.23
5974	NASDAQ	CECO	Thu, Feb 8, 2018	4.29	4.32	4.08	4.08
5973	NASDAQ	CECO	Wed, Feb 7, 2018	4.44	4.46	4.26	4.28
5972	NASDAQ	CECO	Tue, Feb 6, 2018	4.04	5.29	4.02	4.44
5971	NASDAQ	CECO	Mon, Feb 5, 2018	4.25	4.32	4.11	4.13
5970	NASDAQ	CECO	Fri, Feb 2, 2018	4.45	4.47	4.29	4.29
5969	NASDAQ	CECO	Thu, Feb 1, 2018	4.51	4.61	4.42	4.47
5968	NASDAQ	CECO	Wed, Jan 31, 2018	4.78	4.79	4.50	4.53
5967	NASDAQ	CECO	Tue, Jan 30, 2018	4.81	4.83	4.71	4.77
5966	NASDAQ	CECO	Mon, Jan 29, 2018	4.90	4.95	4.80	4.85
5965	NASDAQ	CECO	Fri, Jan 26, 2018	5.04	5.05	4.90	4.93
5964	NASDAQ	CECO	Thu, Jan 25, 2018	4.95	5.14	4.95	5.02
5963	NASDAQ	CECO	Wed, Jan 24, 2018	5.05	5.09	4.91	4.92
5962	NASDAQ	CECO	Tue, Jan 23, 2018	5.10	5.10	5.01	5.04
5961	NASDAQ	CECO	Mon, Jan 22, 2018	5.05	5.14	5.04	5.09
5960	NASDAQ	CECO	Fri, Jan 19, 2018	5.08	5.15	5.04	5.07
5959	NASDAQ	CECO	Thu, Jan 18, 2018	5.23	5.23	5.08	5.09
5958	NASDAQ	CECO	Wed, Jan 17, 2018	5.17	5.24	5.13	5.22
5957	NASDAQ	CECO	Tue, Jan 16, 2018	5.26	5.34	5.12	5.14
5956	NASDAQ	CECO	Fri, Jan 12, 2018	5.32	5.35	5.18	5.22
5955	NASDAQ	CECO	Thu, Jan 11, 2018	5.25	5.42	5.24	5.29
5954	NASDAQ	CECO	Wed, Jan 10, 2018	5.11	5.28	5.06	5.24
5953	NASDAQ	CECO	Tue, Jan 9, 2018	5.17	5.22	5.10	5.15
5952	NASDAQ	CECO	Mon, Jan 8, 2018	5.26	5.28	5.15	5.17
5951	NASDAQ	CECO	Fri, Jan 5, 2018	5.18	5.29	5.13	5.29
5950	NASDAQ	CECO	Thu, Jan 4, 2018	5.16	5.25	5.10	5.17
5949	NASDAQ	CECO	Wed, Jan 3, 2018	5.24	5.33	5.08	5.15
5948	NASDAQ	CECO	Tue, Jan 2, 2018	5.14	5.27	5.13	5.24
5947	NASDAQ	CECO	Fri, Dec 29, 2017	5.23	5.25	5.13	5.13
5946	NASDAQ	CECO	Thu, Dec 28, 2017	5.04	5.24	4.93	5.23
5945	NASDAQ	CECO	Wed, Dec 27, 2017	5.05	5.13	5.03	5.05
5944	NASDAQ	CECO	Tue, Dec 26, 2017	5.05	5.09	5.01	5.07
5943	NASDAQ	CECO	Fri, Dec 22, 2017	5.17	5.17	5.06	5.09
5942	NASDAQ	CECO	Thu, Dec 21, 2017	5.17	5.28	5.16	5.18
5941	NASDAQ	CECO	Wed, Dec 20, 2017	5.06	5.30	5.04	5.16
5940	NASDAQ	CECO	Tue, Dec 19, 2017	5.19	5.19	5.01	5.06
5939	NASDAQ	CECO	Mon, Dec 18, 2017	4.86	5.25	4.86	5.11
5938	NASDAQ	CECO	Fri, Dec 15, 2017	4.84	4.95	4.68	4.80
5937	NASDAQ	CECO	Thu, Dec 14, 2017	4.89	4.95	4.78	4.85
5936	NASDAQ	CECO	Wed, Dec 13, 2017	4.94	5.24	4.86	4.88
5935	NASDAQ	CECO	Tue, Dec 12, 2017	4.83	4.95	4.83	4.91
5934	NASDAQ	CECO	Mon, Dec 11, 2017	4.73	4.93	4.73	4.82
5933	NASDAQ	CECO	Fri, Dec 8, 2017	4.96	5.03	4.68	4.70
5932	NASDAQ	CECO	Thu, Dec 7, 2017	4.97	5.12	4.91	4.96
5931	NASDAQ	CECO	Wed, Dec 6, 2017	5.11	5.16	4.93	4.99
5930	NASDAQ	CECO	Tue, Dec 5, 2017	5.32	5.32	5.06	5.10
5929	NASDAQ	CECO	Mon, Dec 4, 2017	5.29	5.34	5.16	5.26
5928	NASDAQ	CECO	Fri, Dec 1, 2017	5.41	5.42	5.12	5.21
5927	NASDAQ	CECO	Thu, Nov 30, 2017	5.52	5.57	5.40	5.41
5926	NASDAQ	CECO	Wed, Nov 29, 2017	5.41	5.53	5.41	5.47
5925	NASDAQ	CECO	Tue, Nov 28, 2017	5.38	5.51	5.35	5.41
5924	NASDAQ	CECO	Mon, Nov 27, 2017	5.50	5.60	5.38	5.39
5923	NASDAQ	CECO	Fri, Nov 24, 2017	5.40	5.64	5.37	5.52
5922	NASDAQ	CECO	Wed, Nov 22, 2017	5.22	5.45	5.20	5.40
5921	NASDAQ	CECO	Tue, Nov 21, 2017	5.34	5.49	5.17	5.20
5920	NASDAQ	CECO	Mon, Nov 20, 2017	5.57	5.57	5.26	5.37
5919	NASDAQ	CECO	Fri, Nov 17, 2017	5.21	5.63	5.15	5.54
5918	NASDAQ	CECO	Thu, Nov 16, 2017	5.31	5.32	5.23	5.25
5917	NASDAQ	CECO	Wed, Nov 15, 2017	5.47	5.47	5.20	5.28
5916	NASDAQ	CECO	Tue, Nov 14, 2017	5.82	5.82	5.41	5.49
5915	NASDAQ	CECO	Mon, Nov 13, 2017	5.97	6.03	5.65	5.66
5914	NASDAQ	CECO	Fri, Nov 10, 2017	5.76	6.05	5.76	5.96
5913	NASDAQ	CECO	Thu, Nov 9, 2017	5.54	6.19	5.40	5.95
5912	NASDAQ	CECO	Wed, Nov 8, 2017	6.85	7.15	5.66	5.70
5911	NASDAQ	CECO	Tue, Nov 7, 2017	8.47	8.64	8.47	8.62
5910	NASDAQ	CECO	Mon, Nov 6, 2017	8.57	8.65	8.42	8.53
5909	NASDAQ	CECO	Fri, Nov 3, 2017	8.53	8.68	8.43	8.56
5908	NASDAQ	CECO	Thu, Nov 2, 2017	8.55	8.60	8.42	8.51
5907	NASDAQ	CECO	Wed, Nov 1, 2017	8.82	8.84	8.51	8.52
5906	NASDAQ	CECO	Tue, Oct 31, 2017	8.68	8.84	8.65	8.77
5905	NASDAQ	CECO	Mon, Oct 30, 2017	8.80	8.80	8.60	8.68
5904	NASDAQ	CECO	Fri, Oct 27, 2017	8.88	8.90	8.75	8.83
5903	NASDAQ	CECO	Thu, Oct 26, 2017	8.91	8.98	8.80	8.84
5902	NASDAQ	CECO	Wed, Oct 25, 2017	8.94	9.00	8.67	8.88
5901	NASDAQ	CECO	Tue, Oct 24, 2017	9.21	9.42	8.96	8.97
5900	NASDAQ	CECO	Mon, Oct 23, 2017	9.02	9.25	8.95	9.19
5899	NASDAQ	CECO	Fri, Oct 20, 2017	8.97	9.11	8.90	8.96
5898	NASDAQ	CECO	Thu, Oct 19, 2017	8.71	8.88	8.67	8.87
5897	NASDAQ	CECO	Wed, Oct 18, 2017	8.69	8.85	8.67	8.80
5896	NASDAQ	CECO	Tue, Oct 17, 2017	8.67	8.73	8.59	8.64
5895	NASDAQ	CECO	Mon, Oct 16, 2017	8.67	8.89	8.50	8.70
5894	NASDAQ	CECO	Fri, Oct 13, 2017	8.78	8.78	8.54	8.63
5893	NASDAQ	CECO	Thu, Oct 12, 2017	8.70	8.88	8.56	8.72
5892	NASDAQ	CECO	Wed, Oct 11, 2017	8.65	8.78	8.65	8.73
5891	NASDAQ	CECO	Tue, Oct 10, 2017	8.66	8.72	8.57	8.68
5890	NASDAQ	CECO	Mon, Oct 9, 2017	8.54	8.82	8.53	8.61
5889	NASDAQ	CECO	Fri, Oct 6, 2017	8.69	8.76	8.53	8.55
5888	NASDAQ	CECO	Thu, Oct 5, 2017	8.68	8.82	8.63	8.70
5887	NASDAQ	CECO	Wed, Oct 4, 2017	8.77	8.79	8.57	8.68
5886	NASDAQ	CECO	Tue, Oct 3, 2017	8.53	8.78	8.49	8.75
5885	NASDAQ	CECO	Mon, Oct 2, 2017	8.47	8.62	8.38	8.55
5884	NASDAQ	CECO	Fri, Sep 29, 2017	8.69	8.73	8.46	8.46
5883	NASDAQ	CECO	Thu, Sep 28, 2017	8.68	8.76	8.51	8.70
5882	NASDAQ	CECO	Wed, Sep 27, 2017	8.53	8.68	8.53	8.67
5881	NASDAQ	CECO	Tue, Sep 26, 2017	8.38	8.63	8.36	8.50
5880	NASDAQ	CECO	Mon, Sep 25, 2017	8.41	8.56	8.29	8.30
5879	NASDAQ	CECO	Fri, Sep 22, 2017	8.39	8.48	8.30	8.38
5878	NASDAQ	CECO	Thu, Sep 21, 2017	8.28	8.47	8.25	8.38
5877	NASDAQ	CECO	Wed, Sep 20, 2017	8.06	8.33	8.06	8.23
5876	NASDAQ	CECO	Tue, Sep 19, 2017	8.02	8.08	7.93	8.07
5875	NASDAQ	CECO	Mon, Sep 18, 2017	7.92	8.19	7.90	8.03
5874	NASDAQ	CECO	Fri, Sep 15, 2017	7.84	8.01	7.81	7.92
5873	NASDAQ	CECO	Thu, Sep 14, 2017	7.94	7.94	7.74	7.83
5872	NASDAQ	CECO	Wed, Sep 13, 2017	7.92	8.01	7.88	7.95
5871	NASDAQ	CECO	Tue, Sep 12, 2017	7.78	8.06	7.74	7.97
5870	NASDAQ	CECO	Mon, Sep 11, 2017	7.60	7.77	7.56	7.73
5869	NASDAQ	CECO	Fri, Sep 8, 2017	7.64	7.71	7.52	7.56
5868	NASDAQ	CECO	Thu, Sep 7, 2017	7.62	7.73	7.55	7.64
5867	NASDAQ	CECO	Wed, Sep 6, 2017	7.54	7.65	7.48	7.62
5866	NASDAQ	CECO	Tue, Sep 5, 2017	7.46	7.55	7.44	7.54
5865	NASDAQ	CECO	Fri, Sep 1, 2017	7.46	7.50	7.36	7.50
5864	NASDAQ	CECO	Thu, Aug 31, 2017	7.37	7.51	7.35	7.47
5863	NASDAQ	CECO	Wed, Aug 30, 2017	7.44	7.45	7.30	7.34
5862	NASDAQ	CECO	Tue, Aug 29, 2017	7.16	7.42	7.14	7.41
5861	NASDAQ	CECO	Mon, Aug 28, 2017	7.31	7.31	7.12	7.21
5860	NASDAQ	CECO	Fri, Aug 25, 2017	7.18	7.29	7.11	7.27
5859	NASDAQ	CECO	Thu, Aug 24, 2017	7.24	7.26	7.10	7.16
5858	NASDAQ	CECO	Wed, Aug 23, 2017	7.10	7.26	7.10	7.24
5857	NASDAQ	CECO	Tue, Aug 22, 2017	6.94	7.12	6.94	7.10
5856	NASDAQ	CECO	Mon, Aug 21, 2017	6.96	7.02	6.96	6.97
5855	NASDAQ	CECO	Fri, Aug 18, 2017	6.97	7.06	6.97	7.00
5854	NASDAQ	CECO	Thu, Aug 17, 2017	7.50	7.50	7.00	7.06
5853	NASDAQ	CECO	Wed, Aug 16, 2017	7.20	7.52	7.16	7.31
5852	NASDAQ	CECO	Tue, Aug 15, 2017	7.15	7.38	7.08	7.09
5851	NASDAQ	CECO	Mon, Aug 14, 2017	7.47	7.55	7.05	7.11
5850	NASDAQ	CECO	Fri, Aug 11, 2017	7.91	7.94	7.43	7.45
5849	NASDAQ	CECO	Thu, Aug 10, 2017	8.43	8.52	8.07	8.13
5848	NASDAQ	CECO	Wed, Aug 9, 2017	9.00	9.10	8.37	8.57
5847	NASDAQ	CECO	Tue, Aug 8, 2017	9.65	9.75	9.50	9.62
5846	NASDAQ	CECO	Mon, Aug 7, 2017	9.75	9.75	9.61	9.65
5845	NASDAQ	CECO	Fri, Aug 4, 2017	9.74	9.80	9.68	9.71
5844	NASDAQ	CECO	Thu, Aug 3, 2017	9.79	9.83	9.65	9.71
5843	NASDAQ	CECO	Wed, Aug 2, 2017	9.88	9.99	9.65	9.76
5842	NASDAQ	CECO	Tue, Aug 1, 2017	9.67	9.81	9.60	9.77
5841	NASDAQ	CECO	Mon, Jul 31, 2017	9.73	9.81	9.59	9.66
5840	NASDAQ	CECO	Fri, Jul 28, 2017	9.68	9.82	9.62	9.73
5839	NASDAQ	CECO	Thu, Jul 27, 2017	9.90	9.90	9.67	9.73
5838	NASDAQ	CECO	Wed, Jul 26, 2017	9.93	9.93	9.75	9.89
5837	NASDAQ	CECO	Tue, Jul 25, 2017	9.82	9.98	9.75	9.92
5836	NASDAQ	CECO	Mon, Jul 24, 2017	9.79	9.82	9.67	9.79
5835	NASDAQ	CECO	Fri, Jul 21, 2017	9.99	9.99	9.67	9.78
5834	NASDAQ	CECO	Thu, Jul 20, 2017	9.90	9.95	9.73	9.91
5833	NASDAQ	CECO	Wed, Jul 19, 2017	9.85	9.96	9.82	9.90
5832	NASDAQ	CECO	Tue, Jul 18, 2017	9.75	9.87	9.66	9.87
5831	NASDAQ	CECO	Mon, Jul 17, 2017	9.77	9.93	9.74	9.77
5830	NASDAQ	CECO	Fri, Jul 14, 2017	9.72	9.91	9.72	9.80
5829	NASDAQ	CECO	Thu, Jul 13, 2017	9.79	9.83	9.63	9.76
5828	NASDAQ	CECO	Wed, Jul 12, 2017	9.98	10.19	9.78	9.80
5827	NASDAQ	CECO	Tue, Jul 11, 2017	10.14	10.14	9.85	9.96
5826	NASDAQ	CECO	Mon, Jul 10, 2017	10.14	10.30	9.97	10.17
5825	NASDAQ	CECO	Fri, Jul 7, 2017	10.07	10.25	9.91	10.21
5824	NASDAQ	CECO	Thu, Jul 6, 2017	9.94	10.69	9.77	10.05
5823	NASDAQ	CECO	Wed, Jul 5, 2017	9.52	9.84	9.48	9.51
5822	NASDAQ	CECO	Mon, Jul 3, 2017	9.21	9.58	9.21	9.52
5821	NASDAQ	CECO	Fri, Jun 30, 2017	9.49	9.49	9.16	9.18
5820	NASDAQ	CECO	Thu, Jun 29, 2017	9.38	9.58	9.33	9.45
5819	NASDAQ	CECO	Wed, Jun 28, 2017	9.29	9.42	9.23	9.33
5818	NASDAQ	CECO	Tue, Jun 27, 2017	9.31	9.40	9.23	9.26
5817	NASDAQ	CECO	Mon, Jun 26, 2017	9.35	9.50	9.30	9.32
5816	NASDAQ	CECO	Fri, Jun 23, 2017	9.21	9.39	9.07	9.34
5815	NASDAQ	CECO	Thu, Jun 22, 2017	9.28	9.37	9.05	9.25
5814	NASDAQ	CECO	Wed, Jun 21, 2017	9.50	9.50	9.28	9.29
5813	NASDAQ	CECO	Tue, Jun 20, 2017	9.47	9.66	9.35	9.51
5812	NASDAQ	CECO	Mon, Jun 19, 2017	9.40	9.59	9.28	9.51
5811	NASDAQ	CECO	Fri, Jun 16, 2017	9.30	9.41	9.14	9.36
5810	NASDAQ	CECO	Thu, Jun 15, 2017	9.34	9.44	9.28	9.37
5809	NASDAQ	CECO	Wed, Jun 14, 2017	9.46	9.53	9.18	9.38
5808	NASDAQ	CECO	Tue, Jun 13, 2017	9.39	9.62	9.32	9.51
5807	NASDAQ	CECO	Mon, Jun 12, 2017	9.64	9.89	9.35	9.39
5806	NASDAQ	CECO	Fri, Jun 9, 2017	9.28	9.74	9.28	9.63
5805	NASDAQ	CECO	Thu, Jun 8, 2017	9.22	9.40	9.20	9.28
5804	NASDAQ	CECO	Wed, Jun 7, 2017	9.25	9.37	9.21	9.25
5803	NASDAQ	CECO	Tue, Jun 6, 2017	9.33	9.40	9.16	9.27
5802	NASDAQ	CECO	Mon, Jun 5, 2017	9.45	9.47	9.27	9.33
5801	NASDAQ	CECO	Fri, Jun 2, 2017	9.52	9.74	9.47	9.48
5800	NASDAQ	CECO	Thu, Jun 1, 2017	9.40	9.59	9.38	9.49
5799	NASDAQ	CECO	Wed, May 31, 2017	9.34	9.45	9.13	9.40
5798	NASDAQ	CECO	Tue, May 30, 2017	9.32	9.38	9.16	9.31
5797	NASDAQ	CECO	Fri, May 26, 2017	9.36	9.39	9.31	9.35
5796	NASDAQ	CECO	Thu, May 25, 2017	9.41	9.44	9.35	9.36
5795	NASDAQ	CECO	Wed, May 24, 2017	9.36	9.48	9.35	9.39
5794	NASDAQ	CECO	Tue, May 23, 2017	9.42	9.43	9.35	9.37
5793	NASDAQ	CECO	Mon, May 22, 2017	9.42	9.52	9.35	9.39
5792	NASDAQ	CECO	Fri, May 19, 2017	9.39	9.60	9.38	9.41
5791	NASDAQ	CECO	Thu, May 18, 2017	9.20	9.44	9.18	9.39
5790	NASDAQ	CECO	Wed, May 17, 2017	9.09	9.30	8.94	9.21
5789	NASDAQ	CECO	Tue, May 16, 2017	9.13	9.30	9.08	9.16
5788	NASDAQ	CECO	Mon, May 15, 2017	9.78	9.79	9.05	9.09
5787	NASDAQ	CECO	Fri, May 12, 2017	10.21	10.21	9.77	9.79
5786	NASDAQ	CECO	Thu, May 11, 2017	10.32	10.50	10.15	10.24
5785	NASDAQ	CECO	Wed, May 10, 2017	11.54	11.69	10.16	10.38
5784	NASDAQ	CECO	Tue, May 9, 2017	11.67	12.03	11.67	11.83
5783	NASDAQ	CECO	Mon, May 8, 2017	11.64	11.70	11.51	11.67
5782	NASDAQ	CECO	Fri, May 5, 2017	11.30	11.68	11.11	11.65
5781	NASDAQ	CECO	Thu, May 4, 2017	11.50	11.57	11.24	11.29
5780	NASDAQ	CECO	Wed, May 3, 2017	11.45	11.55	11.37	11.49
5779	NASDAQ	CECO	Tue, May 2, 2017	11.47	11.60	11.34	11.43
5778	NASDAQ	CECO	Mon, May 1, 2017	11.38	11.66	11.27	11.47
5777	NASDAQ	CECO	Fri, Apr 28, 2017	11.50	11.50	11.23	11.29
5776	NASDAQ	CECO	Thu, Apr 27, 2017	11.54	11.71	11.44	11.48
5775	NASDAQ	CECO	Wed, Apr 26, 2017	11.44	11.84	11.44	11.60
5774	NASDAQ	CECO	Tue, Apr 25, 2017	11.24	11.49	11.24	11.45
5773	NASDAQ	CECO	Mon, Apr 24, 2017	11.20	11.30	11.07	11.17
5772	NASDAQ	CECO	Fri, Apr 21, 2017	10.92	11.04	10.74	11.02
5771	NASDAQ	CECO	Thu, Apr 20, 2017	10.81	11.02	10.80	10.95
5770	NASDAQ	CECO	Wed, Apr 19, 2017	10.72	10.95	10.65	10.75
5769	NASDAQ	CECO	Tue, Apr 18, 2017	10.60	10.77	10.53	10.73
5768	NASDAQ	CECO	Mon, Apr 17, 2017	10.50	10.66	10.43	10.64
5767	NASDAQ	CECO	Thu, Apr 13, 2017	10.61	10.69	10.42	10.44
5766	NASDAQ	CECO	Wed, Apr 12, 2017	10.79	10.79	10.55	10.64
5765	NASDAQ	CECO	Tue, Apr 11, 2017	10.54	10.79	10.50	10.79
5764	NASDAQ	CECO	Mon, Apr 10, 2017	10.68	10.86	10.46	10.53
5763	NASDAQ	CECO	Fri, Apr 7, 2017	10.46	10.70	10.42	10.70
5762	NASDAQ	CECO	Thu, Apr 6, 2017	10.36	10.51	10.32	10.49
5761	NASDAQ	CECO	Wed, Apr 5, 2017	10.47	10.69	10.29	10.36
5760	NASDAQ	CECO	Tue, Apr 4, 2017	10.28	10.43	10.26	10.43
5759	NASDAQ	CECO	Mon, Apr 3, 2017	10.55	10.65	10.29	10.30
5758	NASDAQ	CECO	Fri, Mar 31, 2017	10.62	10.70	10.46	10.51
5757	NASDAQ	CECO	Thu, Mar 30, 2017	10.58	10.79	10.58	10.63
5756	NASDAQ	CECO	Wed, Mar 29, 2017	10.35	10.68	10.28	10.59
5755	NASDAQ	CECO	Tue, Mar 28, 2017	10.37	10.51	10.25	10.41
5754	NASDAQ	CECO	Mon, Mar 27, 2017	10.24	10.51	10.18	10.42
5753	NASDAQ	CECO	Fri, Mar 24, 2017	10.53	10.67	10.35	10.41
5752	NASDAQ	CECO	Thu, Mar 23, 2017	10.23	10.64	10.19	10.59
5751	NASDAQ	CECO	Wed, Mar 22, 2017	10.06	10.27	10.06	10.22
5750	NASDAQ	CECO	Tue, Mar 21, 2017	10.56	10.67	10.12	10.13
5749	NASDAQ	CECO	Mon, Mar 20, 2017	10.21	10.56	10.20	10.53
5748	NASDAQ	CECO	Fri, Mar 17, 2017	10.45	10.61	10.29	10.33
5747	NASDAQ	CECO	Thu, Mar 16, 2017	10.44	10.68	10.27	10.49
5746	NASDAQ	CECO	Wed, Mar 15, 2017	10.17	10.50	10.01	10.44
5745	NASDAQ	CECO	Tue, Mar 14, 2017	10.71	10.77	10.21	10.25
5744	NASDAQ	CECO	Mon, Mar 13, 2017	10.51	11.00	10.32	10.80
5743	NASDAQ	CECO	Fri, Mar 10, 2017	11.99	11.99	9.84	10.57
5742	NASDAQ	CECO	Thu, Mar 9, 2017	11.35	12.25	11.25	11.75
5741	NASDAQ	CECO	Wed, Mar 8, 2017	11.15	11.19	10.91	10.92
5740	NASDAQ	CECO	Tue, Mar 7, 2017	11.24	11.25	11.09	11.13
5739	NASDAQ	CECO	Mon, Mar 6, 2017	11.36	11.36	11.06	11.23
5738	NASDAQ	CECO	Fri, Mar 3, 2017	11.66	11.71	11.21	11.36
5737	NASDAQ	CECO	Thu, Mar 2, 2017	11.55	11.81	11.40	11.68
5736	NASDAQ	CECO	Wed, Mar 1, 2017	11.40	11.60	11.30	11.55
5735	NASDAQ	CECO	Tue, Feb 28, 2017	11.39	11.43	11.26	11.30
5734	NASDAQ	CECO	Mon, Feb 27, 2017	11.39	11.46	11.32	11.38
5733	NASDAQ	CECO	Fri, Feb 24, 2017	11.32	11.48	11.32	11.36
5732	NASDAQ	CECO	Thu, Feb 23, 2017	11.66	11.66	11.41	11.44
5731	NASDAQ	CECO	Wed, Feb 22, 2017	11.39	11.49	11.27	11.49
5730	NASDAQ	CECO	Tue, Feb 21, 2017	11.34	11.47	11.27	11.40
5729	NASDAQ	CECO	Fri, Feb 17, 2017	10.97	11.25	10.97	11.21
5728	NASDAQ	CECO	Thu, Feb 16, 2017	11.37	11.45	11.05	11.16
5727	NASDAQ	CECO	Wed, Feb 15, 2017	11.01	11.49	10.93	11.32
5726	NASDAQ	CECO	Tue, Feb 14, 2017	11.35	11.50	11.03	11.08
5725	NASDAQ	CECO	Mon, Feb 13, 2017	12.53	12.55	11.08	11.41
5724	NASDAQ	CECO	Fri, Feb 10, 2017	12.58	12.58	12.33	12.52
5723	NASDAQ	CECO	Thu, Feb 9, 2017	12.33	12.61	12.24	12.47
5722	NASDAQ	CECO	Wed, Feb 8, 2017	12.94	12.94	12.24	12.27
5721	NASDAQ	CECO	Tue, Feb 7, 2017	13.10	13.25	12.89	12.98
5720	NASDAQ	CECO	Mon, Feb 6, 2017	13.10	13.15	12.94	13.08
5719	NASDAQ	CECO	Fri, Feb 3, 2017	13.21	13.28	13.10	13.17
5718	NASDAQ	CECO	Thu, Feb 2, 2017	13.14	13.23	13.10	13.14
5717	NASDAQ	CECO	Wed, Feb 1, 2017	13.17	13.25	12.95	13.15
5716	NASDAQ	CECO	Tue, Jan 31, 2017	13.05	13.23	12.80	13.12
5715	NASDAQ	CECO	Mon, Jan 30, 2017	13.30	13.32	12.99	13.09
5714	NASDAQ	CECO	Fri, Jan 27, 2017	13.45	13.50	13.23	13.33
5713	NASDAQ	CECO	Thu, Jan 26, 2017	13.20	13.52	13.05	13.40
5712	NASDAQ	CECO	Wed, Jan 25, 2017	12.40	13.24	12.39	13.19
5711	NASDAQ	CECO	Tue, Jan 24, 2017	13.36	13.44	11.71	12.37
5710	NASDAQ	CECO	Mon, Jan 23, 2017	13.66	13.85	13.44	13.74
5709	NASDAQ	CECO	Fri, Jan 20, 2017	13.58	13.89	13.51	13.74
5708	NASDAQ	CECO	Thu, Jan 19, 2017	13.93	13.93	13.52	13.56
5707	NASDAQ	CECO	Wed, Jan 18, 2017	13.38	13.96	13.38	13.88
5706	NASDAQ	CECO	Tue, Jan 17, 2017	13.68	13.77	13.26	13.36
5705	NASDAQ	CECO	Fri, Jan 13, 2017	13.60	13.98	13.57	13.72
5704	NASDAQ	CECO	Thu, Jan 12, 2017	14.15	14.20	13.42	13.60
5703	NASDAQ	CECO	Wed, Jan 11, 2017	14.35	14.39	14.05	14.19
5702	NASDAQ	CECO	Tue, Jan 10, 2017	13.95	14.38	13.95	14.36
5701	NASDAQ	CECO	Mon, Jan 9, 2017	14.07	14.07	13.72	13.85
5700	NASDAQ	CECO	Fri, Jan 6, 2017	14.18	14.18	13.99	14.06
5699	NASDAQ	CECO	Thu, Jan 5, 2017	14.29	14.31	14.09	14.13
5698	NASDAQ	CECO	Wed, Jan 4, 2017	14.10	14.46	13.87	14.30
5697	NASDAQ	CECO	Tue, Jan 3, 2017	14.01	14.30	13.77	14.03
5696	NASDAQ	CECO	Fri, Dec 30, 2016	14.11	14.11	13.76	13.95
5695	NASDAQ	CECO	Thu, Dec 29, 2016	14.09	14.21	13.85	14.00
5694	NASDAQ	CECO	Wed, Dec 28, 2016	14.27	14.39	14.01	14.05
5693	NASDAQ	CECO	Tue, Dec 27, 2016	14.23	14.45	14.21	14.26
5692	NASDAQ	CECO	Fri, Dec 23, 2016	14.30	14.47	14.13	14.17
5691	NASDAQ	CECO	Thu, Dec 22, 2016	14.41	14.53	14.10	14.32
5690	NASDAQ	CECO	Wed, Dec 21, 2016	14.43	14.55	14.23	14.38
5689	NASDAQ	CECO	Tue, Dec 20, 2016	14.42	14.50	14.24	14.41
5688	NASDAQ	CECO	Mon, Dec 19, 2016	14.38	14.45	14.03	14.31
5687	NASDAQ	CECO	Fri, Dec 16, 2016	14.06	14.61	14.06	14.06
5686	NASDAQ	CECO	Thu, Dec 15, 2016	13.60	14.30	13.51	13.98
5685	NASDAQ	CECO	Wed, Dec 14, 2016	14.11	14.49	13.53	13.59
5684	NASDAQ	CECO	Tue, Dec 13, 2016	14.44	14.50	13.56	14.28
5683	NASDAQ	CECO	Mon, Dec 12, 2016	14.29	14.56	14.10	14.43
5682	NASDAQ	CECO	Fri, Dec 9, 2016	14.82	14.82	14.31	14.39
5681	NASDAQ	CECO	Thu, Dec 8, 2016	14.65	14.88	14.47	14.77
5680	NASDAQ	CECO	Wed, Dec 7, 2016	14.39	14.68	14.26	14.65
5679	NASDAQ	CECO	Tue, Dec 6, 2016	14.43	14.49	14.19	14.35
5678	NASDAQ	CECO	Mon, Dec 5, 2016	13.95	14.17	13.86	14.16
5677	NASDAQ	CECO	Fri, Dec 2, 2016	13.81	14.13	13.79	13.85
5676	NASDAQ	CECO	Thu, Dec 1, 2016	14.08	14.23	13.52	13.78
5675	NASDAQ	CECO	Wed, Nov 30, 2016	13.47	14.41	13.25	14.19
5674	NASDAQ	CECO	Tue, Nov 29, 2016	13.22	13.60	13.02	13.42
5673	NASDAQ	CECO	Mon, Nov 28, 2016	13.31	13.39	13.07	13.36
5672	NASDAQ	CECO	Fri, Nov 25, 2016	13.20	13.33	13.07	13.32
5671	NASDAQ	CECO	Wed, Nov 23, 2016	13.12	13.34	13.03	13.25
5670	NASDAQ	CECO	Tue, Nov 22, 2016	12.98	13.20	12.94	13.18
5669	NASDAQ	CECO	Mon, Nov 21, 2016	12.90	12.98	12.82	12.92
5668	NASDAQ	CECO	Fri, Nov 18, 2016	12.78	12.90	12.65	12.85
5667	NASDAQ	CECO	Thu, Nov 17, 2016	12.69	12.87	12.27	12.79
5666	NASDAQ	CECO	Wed, Nov 16, 2016	12.55	13.00	12.50	12.87
5665	NASDAQ	CECO	Tue, Nov 15, 2016	12.40	12.74	12.29	12.55
5664	NASDAQ	CECO	Mon, Nov 14, 2016	11.00	12.49	11.00	12.26
5663	NASDAQ	CECO	Fri, Nov 11, 2016	10.32	10.98	10.25	10.86
5662	NASDAQ	CECO	Thu, Nov 10, 2016	10.30	10.52	9.71	10.29
5661	NASDAQ	CECO	Wed, Nov 9, 2016	10.10	10.43	9.88	10.20
5660	NASDAQ	CECO	Tue, Nov 8, 2016	10.39	10.40	9.73	10.26
5659	NASDAQ	CECO	Mon, Nov 7, 2016	9.67	9.93	9.60	9.69
5658	NASDAQ	CECO	Fri, Nov 4, 2016	9.58	9.81	9.53	9.55
5657	NASDAQ	CECO	Thu, Nov 3, 2016	9.62	9.92	9.55	9.57
5656	NASDAQ	CECO	Wed, Nov 2, 2016	9.80	9.89	9.57	9.58
5655	NASDAQ	CECO	Tue, Nov 1, 2016	9.88	10.06	9.81	9.82
5654	NASDAQ	CECO	Mon, Oct 31, 2016	10.13	10.15	9.81	9.90
5653	NASDAQ	CECO	Fri, Oct 28, 2016	10.27	10.27	10.09	10.12
5652	NASDAQ	CECO	Thu, Oct 27, 2016	10.34	10.37	10.17	10.21
5651	NASDAQ	CECO	Wed, Oct 26, 2016	10.50	10.63	10.33	10.35
5650	NASDAQ	CECO	Tue, Oct 25, 2016	10.49	10.64	10.43	10.57
5649	NASDAQ	CECO	Mon, Oct 24, 2016	10.61	10.75	10.50	10.60
5648	NASDAQ	CECO	Fri, Oct 21, 2016	10.46	10.64	10.38	10.51
5647	NASDAQ	CECO	Thu, Oct 20, 2016	10.51	10.68	10.44	10.54
5646	NASDAQ	CECO	Wed, Oct 19, 2016	10.56	10.73	10.27	10.57
5645	NASDAQ	CECO	Tue, Oct 18, 2016	10.68	10.76	10.54	10.56
5644	NASDAQ	CECO	Mon, Oct 17, 2016	10.65	10.71	10.55	10.65
5643	NASDAQ	CECO	Fri, Oct 14, 2016	10.59	10.82	10.47	10.64
5642	NASDAQ	CECO	Thu, Oct 13, 2016	10.56	10.71	10.43	10.53
5641	NASDAQ	CECO	Wed, Oct 12, 2016	10.75	10.96	10.73	10.80
5640	NASDAQ	CECO	Tue, Oct 11, 2016	10.83	10.85	10.70	10.72
5639	NASDAQ	CECO	Mon, Oct 10, 2016	10.88	10.97	10.78	10.87
5638	NASDAQ	CECO	Fri, Oct 7, 2016	10.89	10.89	10.68	10.77
5637	NASDAQ	CECO	Thu, Oct 6, 2016	10.98	11.03	10.71	10.83
5636	NASDAQ	CECO	Wed, Oct 5, 2016	11.14	11.24	10.99	11.01
5635	NASDAQ	CECO	Tue, Oct 4, 2016	11.23	11.26	11.00	11.07
5634	NASDAQ	CECO	Mon, Oct 3, 2016	11.30	11.45	11.09	11.15
5633	NASDAQ	CECO	Fri, Sep 30, 2016	11.00	11.35	10.98	11.28
5632	NASDAQ	CECO	Thu, Sep 29, 2016	11.01	11.10	10.80	10.89
5631	NASDAQ	CECO	Wed, Sep 28, 2016	11.02	11.04	10.89	11.04
5630	NASDAQ	CECO	Tue, Sep 27, 2016	10.74	10.97	10.52	10.95
5629	NASDAQ	CECO	Mon, Sep 26, 2016	10.97	10.99	10.52	10.54
5628	NASDAQ	CECO	Fri, Sep 23, 2016	10.95	11.09	10.91	10.98
5627	NASDAQ	CECO	Thu, Sep 22, 2016	10.84	10.95	10.68	10.93
5626	NASDAQ	CECO	Wed, Sep 21, 2016	10.63	10.85	10.61	10.73
5625	NASDAQ	CECO	Tue, Sep 20, 2016	10.75	10.95	10.62	10.63
5624	NASDAQ	CECO	Mon, Sep 19, 2016	10.59	10.82	10.59	10.74
5623	NASDAQ	CECO	Fri, Sep 16, 2016	10.69	10.82	10.54	10.62
5622	NASDAQ	CECO	Thu, Sep 15, 2016	10.52	10.74	10.52	10.67
5621	NASDAQ	CECO	Wed, Sep 14, 2016	10.58	10.96	10.44	10.55
5620	NASDAQ	CECO	Tue, Sep 13, 2016	10.81	10.81	10.57	10.66
5619	NASDAQ	CECO	Mon, Sep 12, 2016	10.75	10.88	10.63	10.85
5618	NASDAQ	CECO	Fri, Sep 9, 2016	10.94	10.99	10.70	10.75
5617	NASDAQ	CECO	Thu, Sep 8, 2016	10.98	11.03	10.59	11.00
5616	NASDAQ	CECO	Wed, Sep 7, 2016	10.97	11.28	10.95	10.97
5615	NASDAQ	CECO	Tue, Sep 6, 2016	11.35	11.35	10.86	11.02
5614	NASDAQ	CECO	Fri, Sep 2, 2016	11.16	11.41	11.09	11.24
5613	NASDAQ	CECO	Thu, Sep 1, 2016	11.00	11.23	10.79	11.13
5612	NASDAQ	CECO	Wed, Aug 31, 2016	11.33	11.42	10.92	10.99
5611	NASDAQ	CECO	Tue, Aug 30, 2016	11.47	11.58	11.08	11.31
5610	NASDAQ	CECO	Mon, Aug 29, 2016	11.55	11.66	10.87	11.50
5609	NASDAQ	CECO	Fri, Aug 26, 2016	11.54	11.64	11.44	11.51
5608	NASDAQ	CECO	Thu, Aug 25, 2016	11.67	11.75	11.48	11.54
5607	NASDAQ	CECO	Wed, Aug 24, 2016	11.49	11.70	11.47	11.65
5606	NASDAQ	CECO	Tue, Aug 23, 2016	11.50	11.56	11.35	11.49
5605	NASDAQ	CECO	Mon, Aug 22, 2016	10.99	11.50	10.99	11.49
5604	NASDAQ	CECO	Fri, Aug 19, 2016	10.99	11.02	10.91	11.00
5603	NASDAQ	CECO	Thu, Aug 18, 2016	11.00	11.05	10.89	11.00
5602	NASDAQ	CECO	Wed, Aug 17, 2016	10.92	11.00	10.79	11.00
5601	NASDAQ	CECO	Tue, Aug 16, 2016	10.77	10.92	10.70	10.92
5600	NASDAQ	CECO	Mon, Aug 15, 2016	10.32	10.81	10.13	10.78
5599	NASDAQ	CECO	Fri, Aug 12, 2016	10.21	10.36	10.11	10.33
5598	NASDAQ	CECO	Thu, Aug 11, 2016	10.15	10.25	10.11	10.22
5597	NASDAQ	CECO	Wed, Aug 10, 2016	9.44	10.16	9.36	10.08
5596	NASDAQ	CECO	Tue, Aug 9, 2016	9.56	10.44	9.50	9.79
5595	NASDAQ	CECO	Mon, Aug 8, 2016	9.30	9.41	9.16	9.29
5594	NASDAQ	CECO	Fri, Aug 5, 2016	9.08	9.35	9.08	9.30
5593	NASDAQ	CECO	Thu, Aug 4, 2016	9.12	9.21	9.00	9.05
5592	NASDAQ	CECO	Wed, Aug 3, 2016	8.98	9.15	8.98	9.09
5591	NASDAQ	CECO	Tue, Aug 2, 2016	9.07	9.07	8.93	8.99
5590	NASDAQ	CECO	Mon, Aug 1, 2016	9.24	9.24	8.98	9.09
5589	NASDAQ	CECO	Fri, Jul 29, 2016	9.25	9.33	9.09	9.25
5588	NASDAQ	CECO	Thu, Jul 28, 2016	9.29	9.35	9.16	9.29
5587	NASDAQ	CECO	Wed, Jul 27, 2016	9.14	9.33	9.06	9.31
5586	NASDAQ	CECO	Tue, Jul 26, 2016	8.97	9.17	8.93	9.14
5585	NASDAQ	CECO	Mon, Jul 25, 2016	9.07	9.08	8.77	8.99
5584	NASDAQ	CECO	Fri, Jul 22, 2016	8.89	9.13	8.83	9.12
5583	NASDAQ	CECO	Thu, Jul 21, 2016	9.04	9.08	8.83	8.91
5582	NASDAQ	CECO	Wed, Jul 20, 2016	9.08	9.18	8.84	9.08
5581	NASDAQ	CECO	Tue, Jul 19, 2016	9.15	9.19	8.73	9.02
5580	NASDAQ	CECO	Mon, Jul 18, 2016	9.33	9.49	9.18	9.21
5579	NASDAQ	CECO	Fri, Jul 15, 2016	9.27	9.40	9.24	9.38
5578	NASDAQ	CECO	Thu, Jul 14, 2016	9.27	9.30	9.17	9.20
5577	NASDAQ	CECO	Wed, Jul 13, 2016	9.16	9.34	9.08	9.20
5576	NASDAQ	CECO	Tue, Jul 12, 2016	9.20	9.30	9.13	9.15
5575	NASDAQ	CECO	Mon, Jul 11, 2016	9.11	9.23	8.99	9.15
5574	NASDAQ	CECO	Fri, Jul 8, 2016	8.99	9.20	8.95	9.10
5573	NASDAQ	CECO	Thu, Jul 7, 2016	8.62	8.97	8.60	8.89
5572	NASDAQ	CECO	Wed, Jul 6, 2016	8.55	8.67	8.50	8.62
5571	NASDAQ	CECO	Tue, Jul 5, 2016	8.72	8.78	8.50	8.59
5570	NASDAQ	CECO	Fri, Jul 1, 2016	8.74	8.85	8.62	8.79
5569	NASDAQ	CECO	Thu, Jun 30, 2016	8.67	8.75	8.60	8.74
5568	NASDAQ	CECO	Wed, Jun 29, 2016	8.52	8.67	8.44	8.60
5567	NASDAQ	CECO	Tue, Jun 28, 2016	8.46	8.56	8.35	8.49
5566	NASDAQ	CECO	Mon, Jun 27, 2016	8.32	8.47	8.21	8.43
5565	NASDAQ	CECO	Fri, Jun 24, 2016	8.41	8.56	8.21	8.45
5564	NASDAQ	CECO	Thu, Jun 23, 2016	8.65	8.87	8.63	8.85
5563	NASDAQ	CECO	Wed, Jun 22, 2016	8.60	8.75	8.55	8.60
5562	NASDAQ	CECO	Tue, Jun 21, 2016	8.71	8.71	8.51	8.60
5561	NASDAQ	CECO	Mon, Jun 20, 2016	8.67	8.84	8.61	8.67
5560	NASDAQ	CECO	Fri, Jun 17, 2016	8.51	8.60	8.36	8.56
5559	NASDAQ	CECO	Thu, Jun 16, 2016	8.30	8.53	8.16	8.50
5558	NASDAQ	CECO	Wed, Jun 15, 2016	8.26	8.40	8.23	8.35
5557	NASDAQ	CECO	Tue, Jun 14, 2016	8.17	8.43	8.17	8.35
5556	NASDAQ	CECO	Mon, Jun 13, 2016	8.24	8.39	8.16	8.19
5555	NASDAQ	CECO	Fri, Jun 10, 2016	8.48	8.58	8.16	8.29
5554	NASDAQ	CECO	Thu, Jun 9, 2016	8.46	8.61	8.28	8.60
5553	NASDAQ	CECO	Wed, Jun 8, 2016	8.38	8.55	8.33	8.47
5552	NASDAQ	CECO	Tue, Jun 7, 2016	8.40	8.50	8.34	8.40
5551	NASDAQ	CECO	Mon, Jun 6, 2016	8.34	8.47	8.32	8.44
5550	NASDAQ	CECO	Fri, Jun 3, 2016	8.54	8.55	8.30	8.33
5549	NASDAQ	CECO	Thu, Jun 2, 2016	8.25	8.60	8.25	8.54
5548	NASDAQ	CECO	Wed, Jun 1, 2016	8.08	8.35	8.04	8.31
5547	NASDAQ	CECO	Tue, May 31, 2016	8.02	8.30	7.77	8.15
5546	NASDAQ	CECO	Fri, May 27, 2016	8.09	8.14	7.87	8.03
5545	NASDAQ	CECO	Thu, May 26, 2016	8.06	8.32	8.05	8.11
5544	NASDAQ	CECO	Wed, May 25, 2016	7.92	8.27	7.90	8.06
5543	NASDAQ	CECO	Tue, May 24, 2016	7.80	7.90	7.71	7.90
5542	NASDAQ	CECO	Mon, May 23, 2016	7.77	7.80	7.68	7.77
5541	NASDAQ	CECO	Fri, May 20, 2016	7.73	7.86	7.70	7.79
5540	NASDAQ	CECO	Thu, May 19, 2016	7.79	7.82	7.61	7.68
5539	NASDAQ	CECO	Wed, May 18, 2016	7.72	7.97	7.64	7.83
5538	NASDAQ	CECO	Tue, May 17, 2016	7.59	8.00	7.59	7.73
5537	NASDAQ	CECO	Mon, May 16, 2016	7.66	7.83	7.62	7.66
5536	NASDAQ	CECO	Fri, May 13, 2016	7.89	7.99	7.66	7.71
5535	NASDAQ	CECO	Thu, May 12, 2016	7.89	8.02	7.74	7.93
5534	NASDAQ	CECO	Wed, May 11, 2016	8.00	8.19	7.66	7.85
5533	NASDAQ	CECO	Tue, May 10, 2016	7.15	8.03	7.00	7.82
5532	NASDAQ	CECO	Mon, May 9, 2016	6.45	6.55	6.34	6.53
5531	NASDAQ	CECO	Fri, May 6, 2016	6.33	6.47	6.33	6.42
5530	NASDAQ	CECO	Thu, May 5, 2016	6.46	6.47	6.27	6.36
5529	NASDAQ	CECO	Wed, May 4, 2016	6.41	6.52	6.32	6.42
5528	NASDAQ	CECO	Tue, May 3, 2016	6.47	6.57	6.37	6.46
5527	NASDAQ	CECO	Mon, May 2, 2016	6.64	6.64	6.40	6.53
5526	NASDAQ	CECO	Fri, Apr 29, 2016	6.48	6.67	6.45	6.60
5525	NASDAQ	CECO	Thu, Apr 28, 2016	6.63	6.68	6.51	6.54
5524	NASDAQ	CECO	Wed, Apr 27, 2016	6.53	6.75	6.43	6.65
5523	NASDAQ	CECO	Tue, Apr 26, 2016	6.53	6.63	6.41	6.50
5522	NASDAQ	CECO	Mon, Apr 25, 2016	6.53	6.58	6.44	6.50
5521	NASDAQ	CECO	Fri, Apr 22, 2016	6.68	6.69	6.42	6.53
5520	NASDAQ	CECO	Thu, Apr 21, 2016	6.41	6.64	6.41	6.60
5519	NASDAQ	CECO	Wed, Apr 20, 2016	6.42	6.50	6.35	6.44
5518	NASDAQ	CECO	Tue, Apr 19, 2016	6.39	6.49	6.34	6.40
5517	NASDAQ	CECO	Mon, Apr 18, 2016	6.35	6.42	6.16	6.38
5516	NASDAQ	CECO	Fri, Apr 15, 2016	6.25	6.50	6.25	6.40
5515	NASDAQ	CECO	Thu, Apr 14, 2016	6.18	6.39	6.14	6.28
5514	NASDAQ	CECO	Wed, Apr 13, 2016	6.05	6.20	5.97	6.16
5513	NASDAQ	CECO	Tue, Apr 12, 2016	5.99	6.15	5.97	6.00
5512	NASDAQ	CECO	Mon, Apr 11, 2016	6.00	6.09	5.96	5.99
5511	NASDAQ	CECO	Fri, Apr 8, 2016	6.03	6.12	5.94	5.98
5510	NASDAQ	CECO	Thu, Apr 7, 2016	5.99	6.10	5.92	5.97
5509	NASDAQ	CECO	Wed, Apr 6, 2016	5.96	6.08	5.92	6.05
5508	NASDAQ	CECO	Tue, Apr 5, 2016	5.98	5.98	5.98	5.98
5507	NASDAQ	CECO	Mon, Apr 4, 2016	6.24	6.32	5.95	5.98
5506	NASDAQ	CECO	Fri, Apr 1, 2016	6.14	6.39	6.09	6.27
5505	NASDAQ	CECO	Thu, Mar 31, 2016	6.20	6.34	6.20	6.23
5504	NASDAQ	CECO	Wed, Mar 30, 2016	6.36	6.45	6.20	6.23
5503	NASDAQ	CECO	Tue, Mar 29, 2016	6.11	6.24	6.01	6.18
5502	NASDAQ	CECO	Mon, Mar 28, 2016	6.10	6.28	6.03	6.24
5501	NASDAQ	CECO	Thu, Mar 24, 2016	5.83	5.83	5.83	6.10
5500	NASDAQ	CECO	Wed, Mar 23, 2016	6.10	6.21	5.82	5.83
5499	NASDAQ	CECO	Tue, Mar 22, 2016	6.13	6.27	6.11	6.21
5498	NASDAQ	CECO	Mon, Mar 21, 2016	6.43	6.44	6.17	6.17
5497	NASDAQ	CECO	Fri, Mar 18, 2016	6.37	6.61	6.36	6.43
5496	NASDAQ	CECO	Thu, Mar 17, 2016	6.00	6.37	6.00	6.31
5495	NASDAQ	CECO	Wed, Mar 16, 2016	6.12	6.19	5.88	6.00
5494	NASDAQ	CECO	Tue, Mar 15, 2016	6.44	6.44	6.44	6.12
5493	NASDAQ	CECO	Mon, Mar 14, 2016	6.34	6.55	6.22	6.44
5492	NASDAQ	CECO	Fri, Mar 11, 2016	6.47	6.56	6.25	6.29
5491	NASDAQ	CECO	Thu, Mar 10, 2016	6.40	6.73	5.90	6.89
5490	NASDAQ	CECO	Wed, Mar 9, 2016	6.87	6.87	6.87	6.89
5489	NASDAQ	CECO	Tue, Mar 8, 2016	7.03	7.03	6.79	7.06
5488	NASDAQ	CECO	Mon, Mar 7, 2016	6.79	7.09	6.77	7.06
5487	NASDAQ	CECO	Fri, Mar 4, 2016	6.77	6.77	6.77	6.79
5486	NASDAQ	CECO	Thu, Mar 3, 2016	6.50	6.50	6.50	6.77
5485	NASDAQ	CECO	Wed, Mar 2, 2016	6.33	6.70	6.28	6.32
5484	NASDAQ	CECO	Tue, Mar 1, 2016	6.21	6.21	6.21	6.32
5483	NASDAQ	CECO	Mon, Feb 29, 2016	6.29	6.32	6.17	6.21
5482	NASDAQ	CECO	Fri, Feb 26, 2016	6.25	6.35	6.18	6.29
5481	NASDAQ	CECO	Thu, Feb 25, 2016	6.26	6.29	6.04	6.24
5480	NASDAQ	CECO	Wed, Feb 24, 2016	6.08	6.33	6.06	6.27
5479	NASDAQ	CECO	Tue, Feb 23, 2016	6.28	6.43	6.13	6.13
5478	NASDAQ	CECO	Mon, Feb 22, 2016	6.27	6.45	6.25	6.32
5477	NASDAQ	CECO	Fri, Feb 19, 2016	6.41	6.44	6.23	6.23
5476	NASDAQ	CECO	Thu, Feb 18, 2016	6.53	6.59	6.38	6.44
5475	NASDAQ	CECO	Wed, Feb 17, 2016	6.36	6.60	6.36	6.50
5474	NASDAQ	CECO	Tue, Feb 16, 2016	6.49	6.52	6.30	6.35
5473	NASDAQ	CECO	Fri, Feb 12, 2016	6.45	6.58	6.35	6.36
5472	NASDAQ	CECO	Thu, Feb 11, 2016	6.07	6.48	6.07	6.36
5471	NASDAQ	CECO	Wed, Feb 10, 2016	6.61	6.82	6.17	6.22
5470	NASDAQ	CECO	Tue, Feb 9, 2016	7.11	7.18	6.57	6.58
5469	NASDAQ	CECO	Mon, Feb 8, 2016	7.42	7.42	7.03	7.21
5468	NASDAQ	CECO	Fri, Feb 5, 2016	7.74	7.80	7.44	7.48
5467	NASDAQ	CECO	Thu, Feb 4, 2016	7.55	7.82	7.47	7.77
5466	NASDAQ	CECO	Wed, Feb 3, 2016	7.63	7.63	7.32	7.57
5465	NASDAQ	CECO	Tue, Feb 2, 2016	7.65	7.74	7.48	7.59
5464	NASDAQ	CECO	Mon, Feb 1, 2016	7.77	7.83	7.51	7.75
5463	NASDAQ	CECO	Fri, Jan 29, 2016	7.59	7.84	7.59	7.80
5462	NASDAQ	CECO	Thu, Jan 28, 2016	7.66	7.85	7.55	7.59
5461	NASDAQ	CECO	Wed, Jan 27, 2016	7.65	7.83	7.54	7.60
5460	NASDAQ	CECO	Tue, Jan 26, 2016	7.52	7.78	7.46	7.65
5459	NASDAQ	CECO	Mon, Jan 25, 2016	7.74	7.79	7.48	7.51
5458	NASDAQ	CECO	Fri, Jan 22, 2016	7.64	7.85	7.57	7.78
5457	NASDAQ	CECO	Thu, Jan 21, 2016	7.30	7.60	7.15	7.51
5456	NASDAQ	CECO	Wed, Jan 20, 2016	6.90	7.27	6.85	7.10
5455	NASDAQ	CECO	Tue, Jan 19, 2016	6.97	7.07	6.86	7.04
5454	NASDAQ	CECO	Fri, Jan 15, 2016	6.86	6.97	6.66	6.91
5453	NASDAQ	CECO	Thu, Jan 14, 2016	6.94	7.13	6.85	7.06
5452	NASDAQ	CECO	Wed, Jan 13, 2016	7.11	7.16	6.85	6.92
5451	NASDAQ	CECO	Tue, Jan 12, 2016	7.20	7.28	6.97	7.12
5450	NASDAQ	CECO	Mon, Jan 11, 2016	6.97	7.34	6.97	7.12
5449	NASDAQ	CECO	Fri, Jan 8, 2016	7.18	7.44	6.93	6.97
5448	NASDAQ	CECO	Thu, Jan 7, 2016	7.42	7.43	7.10	7.10
5447	NASDAQ	CECO	Wed, Jan 6, 2016	7.23	7.67	7.10	7.51
5446	NASDAQ	CECO	Tue, Jan 5, 2016	7.36	7.45	7.19	7.35
5445	NASDAQ	CECO	Mon, Jan 4, 2016	7.58	7.58	7.22	7.36
5444	NASDAQ	CECO	Thu, Dec 31, 2015	7.75	7.79	7.67	7.68
5443	NASDAQ	CECO	Wed, Dec 30, 2015	7.95	8.03	7.78	7.80
5442	NASDAQ	CECO	Tue, Dec 29, 2015	7.96	8.18	7.85	7.88
5441	NASDAQ	CECO	Mon, Dec 28, 2015	8.00	8.21	7.90	7.96
5440	NASDAQ	CECO	Thu, Dec 24, 2015	7.99	8.21	7.99	8.07
5439	NASDAQ	CECO	Wed, Dec 23, 2015	7.93	8.10	7.79	7.96
5438	NASDAQ	CECO	Tue, Dec 22, 2015	7.82	7.98	7.68	7.87
5437	NASDAQ	CECO	Mon, Dec 21, 2015	7.59	7.88	7.57	7.81
5436	NASDAQ	CECO	Fri, Dec 18, 2015	7.36	7.73	7.36	7.59
5435	NASDAQ	CECO	Thu, Dec 17, 2015	7.48	7.64	7.40	7.40
5434	NASDAQ	CECO	Wed, Dec 16, 2015	7.25	7.49	7.10	7.42
5433	NASDAQ	CECO	Tue, Dec 15, 2015	7.20	7.37	7.00	7.14
5432	NASDAQ	CECO	Mon, Dec 14, 2015	7.19	7.32	6.87	6.91
5431	NASDAQ	CECO	Fri, Dec 11, 2015	7.12	7.27	7.04	7.04
5430	NASDAQ	CECO	Thu, Dec 10, 2015	7.33	7.40	7.23	7.23
5429	NASDAQ	CECO	Wed, Dec 9, 2015	7.00	7.56	7.00	7.34
5428	NASDAQ	CECO	Tue, Dec 8, 2015	7.58	7.72	7.35	7.36
5427	NASDAQ	CECO	Mon, Dec 7, 2015	7.66	7.74	7.37	7.65
5426	NASDAQ	CECO	Fri, Dec 4, 2015	7.79	7.81	7.59	7.69
5425	NASDAQ	CECO	Thu, Dec 3, 2015	8.25	8.25	7.79	7.80
5424	NASDAQ	CECO	Wed, Dec 2, 2015	8.32	8.32	8.03	8.21
5423	NASDAQ	CECO	Tue, Dec 1, 2015	8.70	8.75	8.26	8.34
5422	NASDAQ	CECO	Mon, Nov 30, 2015	8.58	8.74	8.57	8.69
5421	NASDAQ	CECO	Fri, Nov 27, 2015	8.57	8.66	8.41	8.64
5420	NASDAQ	CECO	Wed, Nov 25, 2015	8.59	8.65	8.40	8.57
5419	NASDAQ	CECO	Tue, Nov 24, 2015	8.37	8.60	8.37	8.59
5418	NASDAQ	CECO	Mon, Nov 23, 2015	8.68	8.69	8.40	8.44
5417	NASDAQ	CECO	Fri, Nov 20, 2015	8.71	8.84	8.65	8.68
5416	NASDAQ	CECO	Thu, Nov 19, 2015	8.83	8.89	8.63	8.66
5415	NASDAQ	CECO	Wed, Nov 18, 2015	8.71	8.94	8.65	8.85
5414	NASDAQ	CECO	Tue, Nov 17, 2015	8.80	8.97	8.65	8.69
5413	NASDAQ	CECO	Mon, Nov 16, 2015	8.97	9.19	8.51	8.77
5412	NASDAQ	CECO	Fri, Nov 13, 2015	9.05	9.35	8.95	8.99
5411	NASDAQ	CECO	Thu, Nov 12, 2015	9.53	9.63	9.09	9.11
5410	NASDAQ	CECO	Wed, Nov 11, 2015	9.91	9.91	9.58	9.63
5409	NASDAQ	CECO	Tue, Nov 10, 2015	9.92	10.03	9.61	9.90
5408	NASDAQ	CECO	Mon, Nov 9, 2015	10.43	10.43	9.95	9.98
5407	NASDAQ	CECO	Fri, Nov 6, 2015	10.66	10.69	10.28	10.43
5406	NASDAQ	CECO	Thu, Nov 5, 2015	9.55	11.12	9.55	10.71
5405	NASDAQ	CECO	Wed, Nov 4, 2015	9.24	9.46	9.03	9.08
5404	NASDAQ	CECO	Tue, Nov 3, 2015	9.02	9.30	8.91	9.26
5403	NASDAQ	CECO	Mon, Nov 2, 2015	8.89	9.16	8.89	8.98
5402	NASDAQ	CECO	Fri, Oct 30, 2015	9.11	9.12	8.83	8.92
5401	NASDAQ	CECO	Thu, Oct 29, 2015	9.18	9.40	9.07	9.11
5400	NASDAQ	CECO	Wed, Oct 28, 2015	8.58	9.24	8.58	9.23
5399	NASDAQ	CECO	Tue, Oct 27, 2015	9.01	9.01	8.50	8.55
5398	NASDAQ	CECO	Mon, Oct 26, 2015	8.90	9.16	8.90	9.08
5397	NASDAQ	CECO	Fri, Oct 23, 2015	8.75	8.96	8.58	8.88
5396	NASDAQ	CECO	Thu, Oct 22, 2015	8.71	8.88	8.56	8.67
5395	NASDAQ	CECO	Wed, Oct 21, 2015	8.81	8.94	8.62	8.65
5394	NASDAQ	CECO	Tue, Oct 20, 2015	8.58	8.81	8.53	8.77
5393	NASDAQ	CECO	Mon, Oct 19, 2015	8.55	8.66	8.51	8.61
5392	NASDAQ	CECO	Fri, Oct 16, 2015	8.67	8.67	8.39	8.60
5391	NASDAQ	CECO	Thu, Oct 15, 2015	8.45	8.65	8.38	8.64
5390	NASDAQ	CECO	Wed, Oct 14, 2015	8.57	8.61	8.41	8.43
5389	NASDAQ	CECO	Tue, Oct 13, 2015	8.73	8.81	8.58	8.58
5388	NASDAQ	CECO	Mon, Oct 12, 2015	8.77	8.85	8.58	8.76
5387	NASDAQ	CECO	Fri, Oct 9, 2015	8.59	8.87	8.49	8.80
5386	NASDAQ	CECO	Thu, Oct 8, 2015	8.48	8.87	8.48	8.56
5385	NASDAQ	CECO	Wed, Oct 7, 2015	8.56	8.77	8.36	8.49
5384	NASDAQ	CECO	Tue, Oct 6, 2015	8.59	8.91	8.33	8.50
5383	NASDAQ	CECO	Mon, Oct 5, 2015	8.24	8.62	8.24	8.57
5382	NASDAQ	CECO	Fri, Oct 2, 2015	7.90	8.19	7.82	8.18
5381	NASDAQ	CECO	Thu, Oct 1, 2015	8.22	8.26	7.81	7.97
5380	NASDAQ	CECO	Wed, Sep 30, 2015	8.33	8.41	7.93	8.19
5379	NASDAQ	CECO	Tue, Sep 29, 2015	8.29	8.36	8.17	8.29
5378	NASDAQ	CECO	Mon, Sep 28, 2015	8.39	8.53	8.21	8.26
5377	NASDAQ	CECO	Fri, Sep 25, 2015	8.60	8.67	8.33	8.40
5376	NASDAQ	CECO	Thu, Sep 24, 2015	8.52	8.60	8.34	8.52
5375	NASDAQ	CECO	Wed, Sep 23, 2015	8.54	8.73	8.40	8.55
5374	NASDAQ	CECO	Tue, Sep 22, 2015	8.47	8.61	8.42	8.54
5373	NASDAQ	CECO	Mon, Sep 21, 2015	8.65	8.65	8.53	8.60
5372	NASDAQ	CECO	Fri, Sep 18, 2015	8.44	8.65	8.41	8.60
5371	NASDAQ	CECO	Thu, Sep 17, 2015	8.69	8.86	8.48	8.60
5370	NASDAQ	CECO	Wed, Sep 16, 2015	8.55	8.90	8.55	8.68
5369	NASDAQ	CECO	Tue, Sep 15, 2015	8.35	8.75	8.06	8.60
5368	NASDAQ	CECO	Mon, Sep 14, 2015	8.92	8.92	8.01	8.31
5367	NASDAQ	CECO	Fri, Sep 11, 2015	8.87	9.00	8.71	8.92
5366	NASDAQ	CECO	Thu, Sep 10, 2015	8.89	8.99	8.71	8.95
5365	NASDAQ	CECO	Wed, Sep 9, 2015	8.88	9.00	8.57	8.90
5364	NASDAQ	CECO	Tue, Sep 8, 2015	9.57	9.57	8.72	8.80
5363	NASDAQ	CECO	Fri, Sep 4, 2015	9.34	9.95	9.34	9.44
5362	NASDAQ	CECO	Thu, Sep 3, 2015	9.67	9.85	9.36	9.49
5361	NASDAQ	CECO	Wed, Sep 2, 2015	9.42	9.84	9.36	9.71
5360	NASDAQ	CECO	Tue, Sep 1, 2015	9.42	9.64	9.16	9.21
5359	NASDAQ	CECO	Mon, Aug 31, 2015	9.65	9.73	9.47	9.68
5358	NASDAQ	CECO	Fri, Aug 28, 2015	9.40	9.80	9.40	9.72
5357	NASDAQ	CECO	Thu, Aug 27, 2015	9.35	9.49	9.03	9.48
5356	NASDAQ	CECO	Wed, Aug 26, 2015	9.27	9.29	8.98	9.25
5355	NASDAQ	CECO	Tue, Aug 25, 2015	9.50	9.66	9.02	9.10
5354	NASDAQ	CECO	Mon, Aug 24, 2015	8.95	9.56	8.53	9.17
5353	NASDAQ	CECO	Fri, Aug 21, 2015	9.51	9.83	9.40	9.45
5352	NASDAQ	CECO	Thu, Aug 20, 2015	10.03	10.05	9.66	9.70
5351	NASDAQ	CECO	Wed, Aug 19, 2015	10.22	10.26	10.03	10.04
5350	NASDAQ	CECO	Tue, Aug 18, 2015	10.65	10.65	10.21	10.27
5349	NASDAQ	CECO	Mon, Aug 17, 2015	10.03	10.70	10.01	10.68
5348	NASDAQ	CECO	Fri, Aug 14, 2015	9.99	10.10	9.83	10.10
5347	NASDAQ	CECO	Thu, Aug 13, 2015	10.00	10.13	9.90	9.94
5346	NASDAQ	CECO	Wed, Aug 12, 2015	9.77	10.07	9.73	10.00
5345	NASDAQ	CECO	Tue, Aug 11, 2015	9.45	10.13	9.35	9.84
5344	NASDAQ	CECO	Mon, Aug 10, 2015	9.14	9.57	8.97	9.30
5343	NASDAQ	CECO	Fri, Aug 7, 2015	9.68	9.68	8.61	8.66
5342	NASDAQ	CECO	Thu, Aug 6, 2015	9.24	10.47	9.17	9.18
5341	NASDAQ	CECO	Wed, Aug 5, 2015	8.69	8.83	8.51	8.60
5340	NASDAQ	CECO	Tue, Aug 4, 2015	8.88	8.95	8.55	8.60
5339	NASDAQ	CECO	Mon, Aug 3, 2015	9.02	9.58	8.73	8.92
5338	NASDAQ	CECO	Fri, Jul 31, 2015	9.29	9.29	8.95	9.00
5337	NASDAQ	CECO	Thu, Jul 30, 2015	9.15	9.36	9.15	9.23
5336	NASDAQ	CECO	Wed, Jul 29, 2015	9.31	9.38	9.05	9.27
5335	NASDAQ	CECO	Tue, Jul 28, 2015	8.85	9.20	8.65	9.13
5334	NASDAQ	CECO	Mon, Jul 27, 2015	9.12	9.12	8.78	8.99
5333	NASDAQ	CECO	Fri, Jul 24, 2015	9.39	9.42	9.16	9.25
5332	NASDAQ	CECO	Thu, Jul 23, 2015	9.70	9.75	9.38	9.43
5331	NASDAQ	CECO	Wed, Jul 22, 2015	9.78	9.90	9.71	9.74
5330	NASDAQ	CECO	Tue, Jul 21, 2015	9.87	10.02	9.82	9.87
5329	NASDAQ	CECO	Mon, Jul 20, 2015	9.85	9.92	9.74	9.91
5328	NASDAQ	CECO	Fri, Jul 17, 2015	9.92	9.93	9.79	9.84
5327	NASDAQ	CECO	Thu, Jul 16, 2015	9.90	9.99	9.88	9.93
5326	NASDAQ	CECO	Wed, Jul 15, 2015	10.00	10.09	9.80	9.90
5325	NASDAQ	CECO	Tue, Jul 14, 2015	9.81	9.98	9.76	9.97
5324	NASDAQ	CECO	Mon, Jul 13, 2015	10.00	10.08	9.73	9.86
5323	NASDAQ	CECO	Fri, Jul 10, 2015	9.90	10.05	9.70	10.00
5322	NASDAQ	CECO	Thu, Jul 9, 2015	10.13	10.17	9.78	9.78
5321	NASDAQ	CECO	Wed, Jul 8, 2015	10.20	10.32	9.90	10.00
5320	NASDAQ	CECO	Tue, Jul 7, 2015	10.89	10.89	10.18	10.29
5319	NASDAQ	CECO	Mon, Jul 6, 2015	10.93	11.00	10.79	10.84
5318	NASDAQ	CECO	Thu, Jul 2, 2015	11.34	11.47	10.90	10.97
5317	NASDAQ	CECO	Wed, Jul 1, 2015	11.47	11.48	11.20	11.30
5316	NASDAQ	CECO	Tue, Jun 30, 2015	11.07	11.37	11.00	11.33
5315	NASDAQ	CECO	Mon, Jun 29, 2015	11.39	11.43	10.84	11.00
5314	NASDAQ	CECO	Fri, Jun 26, 2015	11.55	11.55	11.09	11.45
5313	NASDAQ	CECO	Thu, Jun 25, 2015	11.72	11.72	11.45	11.49
5312	NASDAQ	CECO	Wed, Jun 24, 2015	11.39	11.76	11.34	11.71
5311	NASDAQ	CECO	Tue, Jun 23, 2015	11.48	11.48	11.38	11.44
5310	NASDAQ	CECO	Mon, Jun 22, 2015	11.25	11.53	11.25	11.44
5309	NASDAQ	CECO	Fri, Jun 19, 2015	11.30	11.63	11.23	11.23
5308	NASDAQ	CECO	Thu, Jun 18, 2015	11.28	11.39	11.18	11.25
5307	NASDAQ	CECO	Wed, Jun 17, 2015	11.55	11.55	11.22	11.23
5306	NASDAQ	CECO	Tue, Jun 16, 2015	11.49	11.55	11.28	11.54
5305	NASDAQ	CECO	Mon, Jun 15, 2015	11.33	11.55	10.97	11.48
5304	NASDAQ	CECO	Fri, Jun 12, 2015	11.47	11.67	11.41	11.45
5303	NASDAQ	CECO	Thu, Jun 11, 2015	11.41	11.63	11.41	11.56
5302	NASDAQ	CECO	Wed, Jun 10, 2015	10.95	11.53	10.81	11.36
5301	NASDAQ	CECO	Tue, Jun 9, 2015	10.88	11.01	10.69	10.99
5300	NASDAQ	CECO	Mon, Jun 8, 2015	10.86	11.28	10.83	10.86
5299	NASDAQ	CECO	Fri, Jun 5, 2015	10.82	10.95	10.72	10.86
5298	NASDAQ	CECO	Thu, Jun 4, 2015	10.81	11.05	10.80	10.88
5297	NASDAQ	CECO	Wed, Jun 3, 2015	10.95	11.05	10.88	10.91
5296	NASDAQ	CECO	Tue, Jun 2, 2015	11.08	11.40	10.92	10.97
5295	NASDAQ	CECO	Mon, Jun 1, 2015	11.49	11.49	11.06	11.18
5294	NASDAQ	CECO	Fri, May 29, 2015	11.30	11.60	11.08	11.35
5293	NASDAQ	CECO	Thu, May 28, 2015	11.25	11.58	11.16	11.27
5292	NASDAQ	CECO	Wed, May 27, 2015	11.05	11.35	10.87	11.24
5291	NASDAQ	CECO	Tue, May 26, 2015	11.25	11.25	11.05	11.08
5290	NASDAQ	CECO	Fri, May 22, 2015	11.44	11.54	11.30	11.33
5289	NASDAQ	CECO	Thu, May 21, 2015	11.31	11.71	11.31	11.50
5288	NASDAQ	CECO	Wed, May 20, 2015	11.57	11.57	11.24	11.32
5287	NASDAQ	CECO	Tue, May 19, 2015	11.30	11.69	11.10	11.67
5286	NASDAQ	CECO	Mon, May 18, 2015	11.47	11.56	11.25	11.30
5285	NASDAQ	CECO	Fri, May 15, 2015	11.52	11.69	11.43	11.45
5284	NASDAQ	CECO	Thu, May 14, 2015	11.35	11.60	11.35	11.58
5283	NASDAQ	CECO	Wed, May 13, 2015	11.58	11.60	11.32	11.32
5282	NASDAQ	CECO	Tue, May 12, 2015	11.75	11.76	11.47	11.55
5281	NASDAQ	CECO	Mon, May 11, 2015	11.72	11.87	11.72	11.77
5280	NASDAQ	CECO	Fri, May 8, 2015	12.02	12.02	11.66	11.77
5279	NASDAQ	CECO	Thu, May 7, 2015	12.34	12.44	11.58	11.85
5278	NASDAQ	CECO	Wed, May 6, 2015	11.18	11.20	10.97	11.11
5277	NASDAQ	CECO	Tue, May 5, 2015	11.45	11.91	10.74	11.27
5276	NASDAQ	CECO	Mon, May 4, 2015	12.01	12.43	11.50	11.51
5275	NASDAQ	CECO	Fri, May 1, 2015	11.80	12.03	11.59	11.79
5274	NASDAQ	CECO	Thu, Apr 30, 2015	12.14	12.43	11.73	11.79
5273	NASDAQ	CECO	Wed, Apr 29, 2015	12.36	12.70	12.24	12.25
5272	NASDAQ	CECO	Tue, Apr 28, 2015	12.26	12.51	12.22	12.48
5271	NASDAQ	CECO	Mon, Apr 27, 2015	12.63	12.78	12.21	12.27
5270	NASDAQ	CECO	Fri, Apr 24, 2015	12.17	12.75	12.17	12.48
5269	NASDAQ	CECO	Thu, Apr 23, 2015	11.55	12.10	11.40	12.05
5268	NASDAQ	CECO	Wed, Apr 22, 2015	11.61	11.69	11.41	11.63
5267	NASDAQ	CECO	Tue, Apr 21, 2015	11.83	11.83	11.58	11.62
5266	NASDAQ	CECO	Mon, Apr 20, 2015	11.78	11.92	11.67	11.80
5265	NASDAQ	CECO	Fri, Apr 17, 2015	11.41	12.00	11.29	11.74
5264	NASDAQ	CECO	Thu, Apr 16, 2015	11.01	11.19	10.94	11.19
5263	NASDAQ	CECO	Wed, Apr 15, 2015	11.00	11.11	10.91	11.08
5262	NASDAQ	CECO	Tue, Apr 14, 2015	10.93	11.02	10.90	11.00
5261	NASDAQ	CECO	Mon, Apr 13, 2015	10.93	11.01	10.90	10.94
5260	NASDAQ	CECO	Fri, Apr 10, 2015	10.91	10.98	10.88	10.96
5259	NASDAQ	CECO	Thu, Apr 9, 2015	11.07	11.12	10.80	10.87
5258	NASDAQ	CECO	Wed, Apr 8, 2015	11.13	11.15	11.02	11.10
5257	NASDAQ	CECO	Tue, Apr 7, 2015	11.07	11.39	11.05	11.11
5256	NASDAQ	CECO	Mon, Apr 6, 2015	10.80	11.10	10.80	11.09
5255	NASDAQ	CECO	Thu, Apr 2, 2015	11.08	11.12	10.88	10.89
5254	NASDAQ	CECO	Wed, Apr 1, 2015	10.54	11.02	10.54	11.02
5253	NASDAQ	CECO	Tue, Mar 31, 2015	10.30	10.65	10.20	10.61
5252	NASDAQ	CECO	Mon, Mar 30, 2015	10.41	11.00	10.28	10.38
5251	NASDAQ	CECO	Fri, Mar 27, 2015	10.74	10.88	10.25	10.28
5250	NASDAQ	CECO	Thu, Mar 26, 2015	11.13	11.37	10.73	10.77
5249	NASDAQ	CECO	Wed, Mar 25, 2015	11.91	11.95	11.17	11.21
5248	NASDAQ	CECO	Tue, Mar 24, 2015	11.88	11.95	11.87	11.91
5247	NASDAQ	CECO	Mon, Mar 23, 2015	12.03	12.05	11.88	11.91
5246	NASDAQ	CECO	Fri, Mar 20, 2015	12.12	12.30	12.03	12.06
5245	NASDAQ	CECO	Thu, Mar 19, 2015	12.00	12.12	12.00	12.11
5244	NASDAQ	CECO	Wed, Mar 18, 2015	12.00	12.11	11.97	12.02
5243	NASDAQ	CECO	Tue, Mar 17, 2015	12.00	12.03	11.94	12.02
5242	NASDAQ	CECO	Mon, Mar 16, 2015	12.37	12.37	12.00	12.03
5241	NASDAQ	CECO	Fri, Mar 13, 2015	12.25	12.28	12.00	12.26
5240	NASDAQ	CECO	Thu, Mar 12, 2015	12.02	12.34	12.02	12.30
5239	NASDAQ	CECO	Wed, Mar 11, 2015	11.59	12.02	11.56	11.98
5238	NASDAQ	CECO	Tue, Mar 10, 2015	11.83	12.00	11.59	11.65
5237	NASDAQ	CECO	Mon, Mar 9, 2015	12.65	12.65	11.90	12.10
5236	NASDAQ	CECO	Fri, Mar 6, 2015	12.62	12.74	12.60	12.65
5235	NASDAQ	CECO	Thu, Mar 5, 2015	13.75	14.10	12.32	12.78
5234	NASDAQ	CECO	Wed, Mar 4, 2015	14.79	14.86	14.50	14.55
5233	NASDAQ	CECO	Tue, Mar 3, 2015	14.48	15.31	14.48	14.89
5232	NASDAQ	CECO	Mon, Mar 2, 2015	14.14	14.70	14.14	14.58
5231	NASDAQ	CECO	Fri, Feb 27, 2015	14.45	14.68	14.21	14.23
5230	NASDAQ	CECO	Thu, Feb 26, 2015	14.15	14.60	14.15	14.43
5229	NASDAQ	CECO	Wed, Feb 25, 2015	14.28	14.60	14.10	14.21
5228	NASDAQ	CECO	Tue, Feb 24, 2015	14.27	14.51	14.13	14.35
5227	NASDAQ	CECO	Mon, Feb 23, 2015	14.31	14.98	14.18	14.30
5226	NASDAQ	CECO	Fri, Feb 20, 2015	14.53	14.60	14.39	14.44
5225	NASDAQ	CECO	Thu, Feb 19, 2015	14.79	14.89	14.54	14.61
5224	NASDAQ	CECO	Wed, Feb 18, 2015	14.82	14.95	14.68	14.87
5223	NASDAQ	CECO	Tue, Feb 17, 2015	14.74	15.00	14.72	14.84
5222	NASDAQ	CECO	Fri, Feb 13, 2015	14.43	14.90	14.43	14.70
5221	NASDAQ	CECO	Thu, Feb 12, 2015	14.42	14.63	14.37	14.47
5220	NASDAQ	CECO	Wed, Feb 11, 2015	14.39	14.47	14.30	14.34
5219	NASDAQ	CECO	Tue, Feb 10, 2015	14.36	14.59	14.16	14.38
5218	NASDAQ	CECO	Mon, Feb 9, 2015	14.51	14.75	14.42	14.45
5217	NASDAQ	CECO	Fri, Feb 6, 2015	14.61	14.72	14.41	14.59
5216	NASDAQ	CECO	Thu, Feb 5, 2015	14.46	14.70	14.25	14.57
5215	NASDAQ	CECO	Wed, Feb 4, 2015	14.47	14.61	14.29	14.37
5214	NASDAQ	CECO	Tue, Feb 3, 2015	14.38	14.69	14.34	14.58
5213	NASDAQ	CECO	Mon, Feb 2, 2015	13.75	14.32	13.64	14.32
5212	NASDAQ	CECO	Fri, Jan 30, 2015	13.77	14.12	13.64	13.72
5211	NASDAQ	CECO	Thu, Jan 29, 2015	13.64	13.94	13.50	13.92
5210	NASDAQ	CECO	Wed, Jan 28, 2015	13.89	13.89	13.55	13.65
5209	NASDAQ	CECO	Tue, Jan 27, 2015	13.77	13.99	13.61	13.85
5208	NASDAQ	CECO	Mon, Jan 26, 2015	13.80	14.00	13.40	14.00
5207	NASDAQ	CECO	Fri, Jan 23, 2015	13.90	13.95	13.67	13.88
5206	NASDAQ	CECO	Thu, Jan 22, 2015	13.92	14.00	13.58	13.90
5205	NASDAQ	CECO	Wed, Jan 21, 2015	13.82	13.84	13.30	13.77
5204	NASDAQ	CECO	Tue, Jan 20, 2015	13.79	14.00	13.54	13.91
5203	NASDAQ	CECO	Fri, Jan 16, 2015	13.67	13.94	13.59	13.83
5202	NASDAQ	CECO	Thu, Jan 15, 2015	13.90	13.91	13.60	13.73
5201	NASDAQ	CECO	Wed, Jan 14, 2015	14.08	14.25	13.70	13.92
5200	NASDAQ	CECO	Tue, Jan 13, 2015	14.52	14.65	13.97	14.31
5199	NASDAQ	CECO	Mon, Jan 12, 2015	14.62	14.64	14.42	14.45
5198	NASDAQ	CECO	Fri, Jan 9, 2015	15.06	15.06	14.67	14.72
5197	NASDAQ	CECO	Thu, Jan 8, 2015	15.13	15.16	14.85	15.12
5196	NASDAQ	CECO	Wed, Jan 7, 2015	14.95	15.09	14.76	15.03
5195	NASDAQ	CECO	Tue, Jan 6, 2015	14.96	14.96	14.52	14.88
5194	NASDAQ	CECO	Mon, Jan 5, 2015	15.24	15.40	14.73	14.95
5193	NASDAQ	CECO	Fri, Jan 2, 2015	15.69	15.69	15.07	15.38
5192	NASDAQ	CECO	Wed, Dec 31, 2014	15.80	15.81	15.47	15.54
5191	NASDAQ	CECO	Tue, Dec 30, 2014	15.77	15.80	15.47	15.80
5190	NASDAQ	CECO	Mon, Dec 29, 2014	15.70	15.80	15.63	15.76
5189	NASDAQ	CECO	Fri, Dec 26, 2014	15.78	15.80	15.66	15.74
5188	NASDAQ	CECO	Wed, Dec 24, 2014	15.66	15.87	15.37	15.69
5187	NASDAQ	CECO	Tue, Dec 23, 2014	15.70	15.90	15.45	15.78
5186	NASDAQ	CECO	Mon, Dec 22, 2014	14.62	15.70	14.50	15.70
5185	NASDAQ	CECO	Fri, Dec 19, 2014	14.68	14.69	14.07	14.65
5184	NASDAQ	CECO	Thu, Dec 18, 2014	14.64	14.82	14.46	14.75
5183	NASDAQ	CECO	Wed, Dec 17, 2014	13.86	14.57	13.86	14.48
5182	NASDAQ	CECO	Tue, Dec 16, 2014	13.80	14.43	13.80	13.90
5181	NASDAQ	CECO	Mon, Dec 15, 2014	14.01	14.11	13.75	13.75
5180	NASDAQ	CECO	Fri, Dec 12, 2014	13.92	14.29	13.83	13.90
5179	NASDAQ	CECO	Thu, Dec 11, 2014	14.14	14.52	14.08	14.16
5178	NASDAQ	CECO	Wed, Dec 10, 2014	14.33	14.70	13.98	14.05
5177	NASDAQ	CECO	Tue, Dec 9, 2014	13.75	14.56	13.75	14.51
5176	NASDAQ	CECO	Mon, Dec 8, 2014	14.10	14.22	13.80	13.92
5175	NASDAQ	CECO	Fri, Dec 5, 2014	14.08	14.39	14.08	14.19
5174	NASDAQ	CECO	Thu, Dec 4, 2014	14.31	14.37	13.98	14.10
5173	NASDAQ	CECO	Wed, Dec 3, 2014	14.19	14.68	14.11	14.36
5172	NASDAQ	CECO	Tue, Dec 2, 2014	13.88	14.30	13.84	14.23
5171	NASDAQ	CECO	Mon, Dec 1, 2014	14.16	14.40	13.89	13.90
5170	NASDAQ	CECO	Fri, Nov 28, 2014	14.60	14.60	14.12	14.16
5169	NASDAQ	CECO	Wed, Nov 26, 2014	14.20	14.67	14.15	14.65
5168	NASDAQ	CECO	Tue, Nov 25, 2014	14.29	14.35	13.71	14.24
5167	NASDAQ	CECO	Mon, Nov 24, 2014	13.64	14.34	13.60	14.34
5166	NASDAQ	CECO	Fri, Nov 21, 2014	13.96	13.96	13.50	13.61
5165	NASDAQ	CECO	Thu, Nov 20, 2014	13.65	13.74	13.54	13.70
5164	NASDAQ	CECO	Wed, Nov 19, 2014	14.20	14.20	13.63	13.75
5163	NASDAQ	CECO	Tue, Nov 18, 2014	14.18	14.72	14.05	14.27
5162	NASDAQ	CECO	Mon, Nov 17, 2014	14.47	14.47	14.00	14.11
5161	NASDAQ	CECO	Fri, Nov 14, 2014	14.57	14.84	14.35	14.54
5160	NASDAQ	CECO	Thu, Nov 13, 2014	14.80	14.87	14.65	14.79
5159	NASDAQ	CECO	Wed, Nov 12, 2014	14.79	15.05	14.74	14.77
5158	NASDAQ	CECO	Tue, Nov 11, 2014	14.88	14.96	14.78	14.87
5157	NASDAQ	CECO	Mon, Nov 10, 2014	14.10	15.01	14.02	14.96
5156	NASDAQ	CECO	Fri, Nov 7, 2014	14.21	14.26	13.81	14.22
5155	NASDAQ	CECO	Thu, Nov 6, 2014	14.47	14.55	14.14	14.28
5154	NASDAQ	CECO	Wed, Nov 5, 2014	14.05	14.63	13.88	14.36
5153	NASDAQ	CECO	Tue, Nov 4, 2014	13.99	14.13	13.75	13.98
5152	NASDAQ	CECO	Mon, Nov 3, 2014	14.31	14.45	14.04	14.09
5151	NASDAQ	CECO	Fri, Oct 31, 2014	14.37	14.45	14.20	14.32
5150	NASDAQ	CECO	Thu, Oct 30, 2014	13.51	14.33	13.47	14.04
5149	NASDAQ	CECO	Wed, Oct 29, 2014	13.59	13.75	13.37	13.57
5148	NASDAQ	CECO	Tue, Oct 28, 2014	13.01	13.67	13.01	13.61
5147	NASDAQ	CECO	Mon, Oct 27, 2014	12.82	13.09	12.82	12.98
5146	NASDAQ	CECO	Fri, Oct 24, 2014	13.05	13.06	12.87	12.98
5145	NASDAQ	CECO	Thu, Oct 23, 2014	13.06	13.20	12.88	13.01
5144	NASDAQ	CECO	Wed, Oct 22, 2014	12.99	13.12	12.91	12.97
5143	NASDAQ	CECO	Tue, Oct 21, 2014	12.91	13.15	12.86	13.00
5142	NASDAQ	CECO	Mon, Oct 20, 2014	12.71	12.97	12.71	12.90
5141	NASDAQ	CECO	Fri, Oct 17, 2014	13.34	13.35	12.75	12.82
5140	NASDAQ	CECO	Thu, Oct 16, 2014	12.57	13.25	12.40	13.11
5139	NASDAQ	CECO	Wed, Oct 15, 2014	12.54	12.90	12.46	12.67
5138	NASDAQ	CECO	Tue, Oct 14, 2014	12.86	12.99	12.68	12.75
5137	NASDAQ	CECO	Mon, Oct 13, 2014	12.55	13.10	12.48	12.78
5136	NASDAQ	CECO	Fri, Oct 10, 2014	12.66	12.89	12.46	12.58
5135	NASDAQ	CECO	Thu, Oct 9, 2014	13.22	13.22	12.73	12.75
5134	NASDAQ	CECO	Wed, Oct 8, 2014	12.79	13.50	12.75	13.30
5133	NASDAQ	CECO	Tue, Oct 7, 2014	12.95	13.04	12.81	12.86
5132	NASDAQ	CECO	Mon, Oct 6, 2014	13.02	13.45	13.01	13.05
5131	NASDAQ	CECO	Fri, Oct 3, 2014	13.27	13.54	12.98	13.04
5130	NASDAQ	CECO	Thu, Oct 2, 2014	13.11	13.64	13.02	13.10
5129	NASDAQ	CECO	Wed, Oct 1, 2014	13.42	13.50	13.02	13.08
5128	NASDAQ	CECO	Tue, Sep 30, 2014	13.61	13.70	13.40	13.40
5127	NASDAQ	CECO	Mon, Sep 29, 2014	13.55	13.65	13.50	13.55
5126	NASDAQ	CECO	Fri, Sep 26, 2014	13.71	13.77	13.51	13.62
5125	NASDAQ	CECO	Thu, Sep 25, 2014	13.55	13.88	13.55	13.71
5124	NASDAQ	CECO	Wed, Sep 24, 2014	13.60	13.75	13.54	13.57
5123	NASDAQ	CECO	Tue, Sep 23, 2014	13.78	13.83	13.59	13.61
5122	NASDAQ	CECO	Mon, Sep 22, 2014	13.77	13.91	13.70	13.88
5121	NASDAQ	CECO	Fri, Sep 19, 2014	14.16	14.30	13.84	13.88
5120	NASDAQ	CECO	Thu, Sep 18, 2014	14.03	14.22	14.03	14.11
5119	NASDAQ	CECO	Wed, Sep 17, 2014	14.20	14.39	13.99	14.01
5118	NASDAQ	CECO	Tue, Sep 16, 2014	14.17	14.37	14.12	14.21
5117	NASDAQ	CECO	Mon, Sep 15, 2014	14.53	14.68	14.18	14.23
5116	NASDAQ	CECO	Fri, Sep 12, 2014	14.42	14.56	14.32	14.51
5115	NASDAQ	CECO	Thu, Sep 11, 2014	14.23	14.51	14.16	14.44
5114	NASDAQ	CECO	Wed, Sep 10, 2014	14.20	14.38	14.10	14.34
5113	NASDAQ	CECO	Tue, Sep 9, 2014	14.45	14.45	14.15	14.15
5112	NASDAQ	CECO	Mon, Sep 8, 2014	14.25	14.68	14.11	14.52
5111	NASDAQ	CECO	Fri, Sep 5, 2014	13.97	14.48	13.97	14.22
5110	NASDAQ	CECO	Thu, Sep 4, 2014	14.07	14.41	14.00	14.04
5109	NASDAQ	CECO	Wed, Sep 3, 2014	14.48	14.48	13.98	14.00
5108	NASDAQ	CECO	Tue, Sep 2, 2014	14.15	14.41	14.04	14.36
5107	NASDAQ	CECO	Fri, Aug 29, 2014	13.91	14.09	13.76	14.06
5106	NASDAQ	CECO	Thu, Aug 28, 2014	14.02	14.08	13.88	13.91
5105	NASDAQ	CECO	Wed, Aug 27, 2014	13.90	14.15	13.84	14.09
5104	NASDAQ	CECO	Tue, Aug 26, 2014	13.75	13.93	13.75	13.91
5103	NASDAQ	CECO	Mon, Aug 25, 2014	14.00	14.00	13.76	13.79
5102	NASDAQ	CECO	Fri, Aug 22, 2014	13.97	14.05	13.79	13.84
5101	NASDAQ	CECO	Thu, Aug 21, 2014	13.83	14.17	13.64	14.05
5100	NASDAQ	CECO	Wed, Aug 20, 2014	13.84	13.90	13.76	13.79
5099	NASDAQ	CECO	Tue, Aug 19, 2014	14.00	14.11	13.84	13.94
5098	NASDAQ	CECO	Mon, Aug 18, 2014	14.17	14.22	13.87	14.02
5097	NASDAQ	CECO	Fri, Aug 15, 2014	14.34	14.45	13.75	14.00
5096	NASDAQ	CECO	Thu, Aug 14, 2014	13.79	14.21	13.75	14.17
5095	NASDAQ	CECO	Wed, Aug 13, 2014	13.64	13.82	13.42	13.74
5094	NASDAQ	CECO	Tue, Aug 12, 2014	13.65	13.77	13.45	13.55
5093	NASDAQ	CECO	Mon, Aug 11, 2014	13.48	13.93	13.39	13.78
5092	NASDAQ	CECO	Fri, Aug 8, 2014	13.58	13.81	13.38	13.41
5091	NASDAQ	CECO	Thu, Aug 7, 2014	13.91	14.20	13.60	13.60
5090	NASDAQ	CECO	Wed, Aug 6, 2014	13.65	14.16	13.51	14.05
5089	NASDAQ	CECO	Tue, Aug 5, 2014	13.73	14.03	13.60	13.77
5088	NASDAQ	CECO	Mon, Aug 4, 2014	13.63	13.80	13.55	13.78
5087	NASDAQ	CECO	Fri, Aug 1, 2014	13.66	13.81	13.47	13.59
5086	NASDAQ	CECO	Thu, Jul 31, 2014	13.95	14.18	13.43	13.58
5085	NASDAQ	CECO	Wed, Jul 30, 2014	14.02	14.25	13.95	14.13
5084	NASDAQ	CECO	Tue, Jul 29, 2014	14.01	14.13	13.86	13.93
5083	NASDAQ	CECO	Mon, Jul 28, 2014	14.07	14.17	13.85	13.97
5082	NASDAQ	CECO	Fri, Jul 25, 2014	14.30	14.41	14.03	14.08
5081	NASDAQ	CECO	Thu, Jul 24, 2014	14.77	14.87	14.44	14.46
5080	NASDAQ	CECO	Wed, Jul 23, 2014	14.76	14.77	14.40	14.51
5079	NASDAQ	CECO	Tue, Jul 22, 2014	15.13	15.13	14.66	14.75
5078	NASDAQ	CECO	Mon, Jul 21, 2014	15.18	15.23	14.92	14.98
5077	NASDAQ	CECO	Fri, Jul 18, 2014	14.58	15.46	14.58	15.35
5076	NASDAQ	CECO	Thu, Jul 17, 2014	14.76	14.86	14.57	14.63
5075	NASDAQ	CECO	Wed, Jul 16, 2014	14.92	14.96	14.65	14.82
5074	NASDAQ	CECO	Tue, Jul 15, 2014	15.04	15.10	14.69	14.86
5073	NASDAQ	CECO	Mon, Jul 14, 2014	15.20	15.20	15.02	15.08
5072	NASDAQ	CECO	Fri, Jul 11, 2014	15.06	15.09	14.99	15.05
5071	NASDAQ	CECO	Thu, Jul 10, 2014	14.75	15.10	14.60	15.00
5070	NASDAQ	CECO	Wed, Jul 9, 2014	15.07	15.15	14.95	14.99
5069	NASDAQ	CECO	Tue, Jul 8, 2014	15.14	15.14	14.91	14.99
5068	NASDAQ	CECO	Mon, Jul 7, 2014	15.60	15.60	15.14	15.21
5067	NASDAQ	CECO	Thu, Jul 3, 2014	15.69	15.73	15.43	15.71
5066	NASDAQ	CECO	Wed, Jul 2, 2014	15.59	15.71	15.37	15.57
5065	NASDAQ	CECO	Tue, Jul 1, 2014	15.65	16.00	15.49	15.63
5064	NASDAQ	CECO	Mon, Jun 30, 2014	15.31	15.73	15.25	15.59
5063	NASDAQ	CECO	Fri, Jun 27, 2014	15.24	15.60	15.14	15.36
5062	NASDAQ	CECO	Thu, Jun 26, 2014	15.50	15.50	15.03	15.37
5061	NASDAQ	CECO	Wed, Jun 25, 2014	15.05	15.47	14.85	15.41
5060	NASDAQ	CECO	Tue, Jun 24, 2014	15.45	15.58	15.08	15.18
5059	NASDAQ	CECO	Mon, Jun 23, 2014	15.35	15.47	15.14	15.42
5058	NASDAQ	CECO	Fri, Jun 20, 2014	15.74	15.80	15.28	15.36
5057	NASDAQ	CECO	Thu, Jun 19, 2014	15.86	15.90	15.28	15.65
5056	NASDAQ	CECO	Wed, Jun 18, 2014	15.54	16.12	15.36	15.84
5055	NASDAQ	CECO	Tue, Jun 17, 2014	15.32	15.74	15.22	15.50
5054	NASDAQ	CECO	Mon, Jun 16, 2014	15.06	15.39	15.04	15.39
5053	NASDAQ	CECO	Fri, Jun 13, 2014	15.22	15.36	14.89	15.04
5052	NASDAQ	CECO	Thu, Jun 12, 2014	15.27	15.46	15.15	15.25
5051	NASDAQ	CECO	Wed, Jun 11, 2014	15.25	16.04	15.14	15.37
5050	NASDAQ	CECO	Tue, Jun 10, 2014	15.42	15.51	15.18	15.48
5049	NASDAQ	CECO	Mon, Jun 9, 2014	15.31	15.54	15.12	15.42
5048	NASDAQ	CECO	Fri, Jun 6, 2014	14.80	15.60	14.80	15.39
5047	NASDAQ	CECO	Thu, Jun 5, 2014	14.04	14.60	13.97	14.58
5046	NASDAQ	CECO	Wed, Jun 4, 2014	14.03	14.18	13.93	14.01
5045	NASDAQ	CECO	Tue, Jun 3, 2014	14.09	14.17	13.75	14.06
5044	NASDAQ	CECO	Mon, Jun 2, 2014	14.44	14.47	14.11	14.14
5043	NASDAQ	CECO	Fri, May 30, 2014	14.53	14.58	14.19	14.32
5042	NASDAQ	CECO	Thu, May 29, 2014	14.62	14.66	14.20	14.47
5041	NASDAQ	CECO	Wed, May 28, 2014	14.50	14.79	14.28	14.52
5040	NASDAQ	CECO	Tue, May 27, 2014	14.55	14.89	14.37	14.51
5039	NASDAQ	CECO	Fri, May 23, 2014	14.11	14.45	13.91	14.41
5038	NASDAQ	CECO	Thu, May 22, 2014	13.68	14.16	13.66	14.08
5037	NASDAQ	CECO	Wed, May 21, 2014	13.65	13.82	13.38	13.68
5036	NASDAQ	CECO	Tue, May 20, 2014	13.86	13.87	13.57	13.62
5035	NASDAQ	CECO	Mon, May 19, 2014	13.37	13.94	13.37	13.90
5034	NASDAQ	CECO	Fri, May 16, 2014	13.24	13.49	13.17	13.46
5033	NASDAQ	CECO	Thu, May 15, 2014	13.17	13.38	13.02	13.26
5032	NASDAQ	CECO	Wed, May 14, 2014	13.41	13.54	13.18	13.29
5031	NASDAQ	CECO	Tue, May 13, 2014	13.51	13.71	13.38	13.41
5030	NASDAQ	CECO	Mon, May 12, 2014	13.60	13.85	13.20	13.69
5029	NASDAQ	CECO	Fri, May 9, 2014	13.93	14.10	13.37	13.48
5028	NASDAQ	CECO	Thu, May 8, 2014	14.37	15.33	14.00	14.09
5027	NASDAQ	CECO	Wed, May 7, 2014	14.97	14.97	14.19	14.55
5026	NASDAQ	CECO	Tue, May 6, 2014	15.41	15.46	14.72	14.87
5025	NASDAQ	CECO	Mon, May 5, 2014	15.41	15.76	15.38	15.52
5024	NASDAQ	CECO	Fri, May 2, 2014	15.80	15.86	15.39	15.61
5023	NASDAQ	CECO	Thu, May 1, 2014	15.81	15.97	15.48	15.79
5022	NASDAQ	CECO	Wed, Apr 30, 2014	15.71	15.98	15.39	15.94
5021	NASDAQ	CECO	Tue, Apr 29, 2014	15.84	16.05	15.58	15.73
5020	NASDAQ	CECO	Mon, Apr 28, 2014	16.18	16.27	15.40	15.74
5019	NASDAQ	CECO	Fri, Apr 25, 2014	16.31	16.54	16.00	16.10
5018	NASDAQ	CECO	Thu, Apr 24, 2014	16.60	16.60	16.22	16.33
5017	NASDAQ	CECO	Wed, Apr 23, 2014	16.70	16.77	16.41	16.47
5016	NASDAQ	CECO	Tue, Apr 22, 2014	16.78	16.83	16.57	16.69
5015	NASDAQ	CECO	Mon, Apr 21, 2014	16.70	16.78	16.52	16.73
5014	NASDAQ	CECO	Thu, Apr 17, 2014	16.72	16.88	16.50	16.62
5013	NASDAQ	CECO	Wed, Apr 16, 2014	16.76	16.97	16.44	16.72
5012	NASDAQ	CECO	Tue, Apr 15, 2014	16.65	16.89	16.26	16.65
5011	NASDAQ	CECO	Mon, Apr 14, 2014	16.75	17.29	16.26	16.60
5010	NASDAQ	CECO	Fri, Apr 11, 2014	16.46	16.88	16.31	16.57
5009	NASDAQ	CECO	Thu, Apr 10, 2014	16.79	16.98	16.35	16.64
5008	NASDAQ	CECO	Wed, Apr 9, 2014	16.77	16.96	16.50	16.87
5007	NASDAQ	CECO	Tue, Apr 8, 2014	16.43	16.89	16.30	16.70
5006	NASDAQ	CECO	Mon, Apr 7, 2014	16.62	17.05	16.00	16.39
5005	NASDAQ	CECO	Fri, Apr 4, 2014	17.18	17.20	16.31	16.64
5004	NASDAQ	CECO	Thu, Apr 3, 2014	17.28	17.29	17.05	17.07
5003	NASDAQ	CECO	Wed, Apr 2, 2014	17.14	17.28	17.03	17.27
5002	NASDAQ	CECO	Tue, Apr 1, 2014	16.65	17.24	16.65	17.11
5001	NASDAQ	CECO	Mon, Mar 31, 2014	16.37	16.90	16.03	16.59
5000	NASDAQ	CECO	Fri, Mar 28, 2014	15.92	16.55	15.75	16.22
4999	NASDAQ	CECO	Thu, Mar 27, 2014	15.81	16.46	15.70	15.85
4998	NASDAQ	CECO	Wed, Mar 26, 2014	17.22	17.34	16.47	16.47
4997	NASDAQ	CECO	Tue, Mar 25, 2014	17.26	17.53	16.87	17.00
4996	NASDAQ	CECO	Mon, Mar 24, 2014	18.02	18.02	16.91	17.13
4995	NASDAQ	CECO	Fri, Mar 21, 2014	18.29	18.74	18.08	18.10
4994	NASDAQ	CECO	Thu, Mar 20, 2014	18.13	18.46	17.55	18.16
4993	NASDAQ	CECO	Wed, Mar 19, 2014	18.53	18.65	17.92	18.11
4992	NASDAQ	CECO	Tue, Mar 18, 2014	18.43	18.74	18.21	18.56
4991	NASDAQ	CECO	Mon, Mar 17, 2014	17.93	18.46	17.85	18.36
4990	NASDAQ	CECO	Fri, Mar 14, 2014	17.72	17.99	17.61	17.88
4989	NASDAQ	CECO	Thu, Mar 13, 2014	18.22	18.22	17.67	17.72
4988	NASDAQ	CECO	Wed, Mar 12, 2014	18.06	18.17	17.36	18.15
4987	NASDAQ	CECO	Tue, Mar 11, 2014	18.56	18.56	18.03	18.20
4986	NASDAQ	CECO	Mon, Mar 10, 2014	18.50	18.90	18.24	18.59
4985	NASDAQ	CECO	Fri, Mar 7, 2014	18.50	18.85	18.21	18.64
4984	NASDAQ	CECO	Thu, Mar 6, 2014	16.55	18.75	16.40	18.46
4983	NASDAQ	CECO	Wed, Mar 5, 2014	16.56	16.60	16.37	16.41
4982	NASDAQ	CECO	Tue, Mar 4, 2014	16.11	16.75	16.05	16.52
4981	NASDAQ	CECO	Mon, Mar 3, 2014	15.99	16.07	15.45	15.93
4980	NASDAQ	CECO	Fri, Feb 28, 2014	16.32	16.75	16.04	16.15
4979	NASDAQ	CECO	Thu, Feb 27, 2014	15.97	16.61	15.97	16.27
4978	NASDAQ	CECO	Wed, Feb 26, 2014	15.92	16.32	15.85	16.04
4977	NASDAQ	CECO	Tue, Feb 25, 2014	16.13	16.45	15.66	15.86
4976	NASDAQ	CECO	Mon, Feb 24, 2014	15.65	16.19	15.61	16.09
4975	NASDAQ	CECO	Fri, Feb 21, 2014	15.64	15.76	15.49	15.58
4974	NASDAQ	CECO	Thu, Feb 20, 2014	15.32	15.67	15.23	15.54
4973	NASDAQ	CECO	Wed, Feb 19, 2014	15.38	15.50	15.15	15.25
4972	NASDAQ	CECO	Tue, Feb 18, 2014	15.34	15.75	15.27	15.46
4971	NASDAQ	CECO	Fri, Feb 14, 2014	15.27	15.46	15.20	15.35
4970	NASDAQ	CECO	Thu, Feb 13, 2014	15.33	15.80	15.25	15.30
4969	NASDAQ	CECO	Wed, Feb 12, 2014	15.62	15.89	15.18	15.56
4968	NASDAQ	CECO	Tue, Feb 11, 2014	15.08	15.80	15.02	15.65
4967	NASDAQ	CECO	Mon, Feb 10, 2014	14.75	14.92	14.55	14.91
4966	NASDAQ	CECO	Fri, Feb 7, 2014	14.40	14.75	14.22	14.71
4965	NASDAQ	CECO	Thu, Feb 6, 2014	14.53	14.91	14.32	14.36
4964	NASDAQ	CECO	Wed, Feb 5, 2014	14.76	14.80	14.29	14.48
4963	NASDAQ	CECO	Tue, Feb 4, 2014	14.67	15.11	14.24	14.82
4962	NASDAQ	CECO	Mon, Feb 3, 2014	15.54	15.54	14.50	14.63
4961	NASDAQ	CECO	Fri, Jan 31, 2014	15.25	15.68	15.25	15.54
4960	NASDAQ	CECO	Thu, Jan 30, 2014	15.57	15.89	15.28	15.39
4959	NASDAQ	CECO	Wed, Jan 29, 2014	15.64	16.17	15.27	15.39
4958	NASDAQ	CECO	Tue, Jan 28, 2014	15.45	15.80	15.45	15.79
4957	NASDAQ	CECO	Mon, Jan 27, 2014	15.82	15.90	15.18	15.47
4956	NASDAQ	CECO	Fri, Jan 24, 2014	16.05	16.07	15.29	15.81
4955	NASDAQ	CECO	Thu, Jan 23, 2014	16.07	16.24	15.75	16.19
4954	NASDAQ	CECO	Wed, Jan 22, 2014	16.62	16.62	16.14	16.21
4953	NASDAQ	CECO	Tue, Jan 21, 2014	16.35	16.74	16.21	16.54
4952	NASDAQ	CECO	Fri, Jan 17, 2014	16.82	17.00	16.38	16.40
4951	NASDAQ	CECO	Thu, Jan 16, 2014	17.09	17.33	16.75	16.89
4950	NASDAQ	CECO	Wed, Jan 15, 2014	17.03	17.26	17.01	17.10
4949	NASDAQ	CECO	Tue, Jan 14, 2014	17.12	17.13	16.85	17.03
4948	NASDAQ	CECO	Mon, Jan 13, 2014	17.67	17.78	16.76	17.06
4947	NASDAQ	CECO	Fri, Jan 10, 2014	17.42	17.72	17.32	17.66
4946	NASDAQ	CECO	Thu, Jan 9, 2014	16.90	17.45	16.81	17.42
4945	NASDAQ	CECO	Wed, Jan 8, 2014	16.55	17.00	16.46	16.80
4944	NASDAQ	CECO	Tue, Jan 7, 2014	16.48	16.89	16.13	16.55
4943	NASDAQ	CECO	Mon, Jan 6, 2014	16.60	16.60	16.04	16.42
4942	NASDAQ	CECO	Fri, Jan 3, 2014	16.10	16.70	16.06	16.54
4941	NASDAQ	CECO	Thu, Jan 2, 2014	16.15	16.23	15.85	16.08
4940	NASDAQ	CECO	Tue, Dec 31, 2013	16.30	16.30	16.09	16.15
4939	NASDAQ	CECO	Mon, Dec 30, 2013	16.41	16.41	16.14	16.27
4938	NASDAQ	CECO	Fri, Dec 27, 2013	16.91	17.18	16.19	16.41
4937	NASDAQ	CECO	Thu, Dec 26, 2013	17.32	17.56	16.80	16.80
4936	NASDAQ	CECO	Tue, Dec 24, 2013	16.29	17.41	16.29	17.18
4935	NASDAQ	CECO	Mon, Dec 23, 2013	15.45	15.91	15.17	15.84
4934	NASDAQ	CECO	Fri, Dec 20, 2013	15.18	15.80	15.18	15.32
4933	NASDAQ	CECO	Thu, Dec 19, 2013	15.25	15.42	15.05	15.10
4932	NASDAQ	CECO	Wed, Dec 18, 2013	15.11	15.53	15.00	15.22
4931	NASDAQ	CECO	Tue, Dec 17, 2013	15.38	15.38	15.08	15.13
4930	NASDAQ	CECO	Mon, Dec 16, 2013	15.40	15.82	15.00	15.39
4929	NASDAQ	CECO	Fri, Dec 13, 2013	15.61	15.74	15.34	15.38
4928	NASDAQ	CECO	Thu, Dec 12, 2013	15.28	15.86	15.25	15.67
4927	NASDAQ	CECO	Wed, Dec 11, 2013	15.48	15.70	15.04	15.29
4926	NASDAQ	CECO	Tue, Dec 10, 2013	15.75	15.84	15.35	15.45
4925	NASDAQ	CECO	Mon, Dec 9, 2013	15.86	15.86	15.42	15.77
4924	NASDAQ	CECO	Fri, Dec 6, 2013	15.33	15.99	15.18	15.89
4923	NASDAQ	CECO	Thu, Dec 5, 2013	15.11	15.36	15.00	15.14
4922	NASDAQ	CECO	Wed, Dec 4, 2013	14.39	15.12	14.18	15.09
4921	NASDAQ	CECO	Tue, Dec 3, 2013	15.11	15.27	14.13	14.50
4920	NASDAQ	CECO	Mon, Dec 2, 2013	15.95	16.04	15.01	15.14
4919	NASDAQ	CECO	Fri, Nov 29, 2013	15.91	16.12	15.81	15.93
4918	NASDAQ	CECO	Wed, Nov 27, 2013	15.45	15.86	15.45	15.79
4917	NASDAQ	CECO	Tue, Nov 26, 2013	15.54	15.80	15.41	15.46
4916	NASDAQ	CECO	Mon, Nov 25, 2013	15.76	15.97	15.42	15.48
4915	NASDAQ	CECO	Fri, Nov 22, 2013	15.74	16.05	15.38	15.73
4914	NASDAQ	CECO	Thu, Nov 21, 2013	15.54	16.00	15.44	15.69
4913	NASDAQ	CECO	Wed, Nov 20, 2013	15.44	15.80	15.39	15.50
4912	NASDAQ	CECO	Tue, Nov 19, 2013	15.21	15.54	15.07	15.31
4911	NASDAQ	CECO	Mon, Nov 18, 2013	15.20	15.53	15.02	15.23
4910	NASDAQ	CECO	Fri, Nov 15, 2013	15.56	15.59	15.01	15.23
4909	NASDAQ	CECO	Thu, Nov 14, 2013	15.53	15.89	15.29	15.58
4908	NASDAQ	CECO	Wed, Nov 13, 2013	15.87	16.08	15.14	15.48
4907	NASDAQ	CECO	Tue, Nov 12, 2013	16.19	16.23	15.77	16.03
4906	NASDAQ	CECO	Mon, Nov 11, 2013	15.51	16.31	15.39	16.18
4905	NASDAQ	CECO	Fri, Nov 8, 2013	16.38	16.77	15.86	16.08
4904	NASDAQ	CECO	Thu, Nov 7, 2013	18.35	18.35	15.75	16.40
4903	NASDAQ	CECO	Wed, Nov 6, 2013	17.82	17.84	17.50	17.71
4902	NASDAQ	CECO	Tue, Nov 5, 2013	17.82	18.07	17.35	17.69
4901	NASDAQ	CECO	Mon, Nov 4, 2013	17.44	18.09	17.26	17.95
4900	NASDAQ	CECO	Fri, Nov 1, 2013	17.66	17.87	17.21	17.34
4899	NASDAQ	CECO	Thu, Oct 31, 2013	18.35	18.35	17.47	17.65
4898	NASDAQ	CECO	Wed, Oct 30, 2013	18.39	18.74	18.25	18.36
4897	NASDAQ	CECO	Tue, Oct 29, 2013	18.31	18.44	18.06	18.28
4896	NASDAQ	CECO	Mon, Oct 28, 2013	18.23	18.43	18.08	18.17
4895	NASDAQ	CECO	Fri, Oct 25, 2013	18.50	18.60	18.08	18.17
4894	NASDAQ	CECO	Thu, Oct 24, 2013	17.83	18.56	17.83	18.48
4893	NASDAQ	CECO	Wed, Oct 23, 2013	18.50	18.60	17.73	17.79
4892	NASDAQ	CECO	Tue, Oct 22, 2013	18.25	18.62	18.15	18.45
4891	NASDAQ	CECO	Mon, Oct 21, 2013	18.97	19.42	17.69	18.21
4890	NASDAQ	CECO	Fri, Oct 18, 2013	18.66	19.14	18.36	18.83
4889	NASDAQ	CECO	Thu, Oct 17, 2013	17.75	18.65	17.51	18.54
4888	NASDAQ	CECO	Wed, Oct 16, 2013	16.76	17.73	16.76	17.47
4887	NASDAQ	CECO	Tue, Oct 15, 2013	16.49	16.85	16.25	16.66
4886	NASDAQ	CECO	Mon, Oct 14, 2013	15.59	16.55	15.18	16.44
4885	NASDAQ	CECO	Fri, Oct 11, 2013	15.30	15.63	15.20	15.62
4884	NASDAQ	CECO	Thu, Oct 10, 2013	14.74	15.46	14.58	15.30
4883	NASDAQ	CECO	Wed, Oct 9, 2013	14.47	14.60	14.26	14.48
4882	NASDAQ	CECO	Tue, Oct 8, 2013	14.50	14.85	14.18	14.42
4881	NASDAQ	CECO	Mon, Oct 7, 2013	14.98	15.04	14.48	14.54
4880	NASDAQ	CECO	Fri, Oct 4, 2013	14.43	15.09	14.43	15.04
4879	NASDAQ	CECO	Thu, Oct 3, 2013	14.76	14.80	14.36	14.47
4878	NASDAQ	CECO	Wed, Oct 2, 2013	14.02	14.81	13.91	14.76
4877	NASDAQ	CECO	Tue, Oct 1, 2013	14.12	14.40	13.95	14.02
4876	NASDAQ	CECO	Mon, Sep 30, 2013	13.12	14.16	13.07	14.08
4875	NASDAQ	CECO	Fri, Sep 27, 2013	12.91	13.20	12.86	13.18
4874	NASDAQ	CECO	Thu, Sep 26, 2013	12.91	13.00	12.77	12.99
4873	NASDAQ	CECO	Wed, Sep 25, 2013	12.95	13.20	12.90	12.92
4872	NASDAQ	CECO	Tue, Sep 24, 2013	12.97	13.04	12.83	12.90
4871	NASDAQ	CECO	Mon, Sep 23, 2013	13.06	13.06	12.85	12.99
4870	NASDAQ	CECO	Fri, Sep 20, 2013	12.90	13.19	12.83	13.05
4869	NASDAQ	CECO	Thu, Sep 19, 2013	12.88	13.06	12.83	12.94
4868	NASDAQ	CECO	Wed, Sep 18, 2013	13.05	13.16	12.80	12.85
4867	NASDAQ	CECO	Tue, Sep 17, 2013	12.94	13.10	12.81	13.01
4866	NASDAQ	CECO	Mon, Sep 16, 2013	13.32	13.45	12.88	12.92
4865	NASDAQ	CECO	Fri, Sep 13, 2013	13.15	13.30	13.00	13.20
4864	NASDAQ	CECO	Thu, Sep 12, 2013	13.09	13.30	12.81	13.09
4863	NASDAQ	CECO	Wed, Sep 11, 2013	13.05	13.42	12.88	13.14
4862	NASDAQ	CECO	Tue, Sep 10, 2013	13.65	13.73	13.05	13.13
4861	NASDAQ	CECO	Mon, Sep 9, 2013	13.02	13.65	12.88	13.55
4860	NASDAQ	CECO	Fri, Sep 6, 2013	13.28	13.45	12.84	13.01
4859	NASDAQ	CECO	Thu, Sep 5, 2013	13.09	13.45	12.98	13.28
4858	NASDAQ	CECO	Wed, Sep 4, 2013	13.01	13.56	13.00	13.14
4857	NASDAQ	CECO	Tue, Sep 3, 2013	13.58	13.69	12.63	13.00
4856	NASDAQ	CECO	Fri, Aug 30, 2013	12.92	13.40	12.64	13.32
4855	NASDAQ	CECO	Thu, Aug 29, 2013	12.83	13.19	12.80	12.89
4854	NASDAQ	CECO	Wed, Aug 28, 2013	12.74	12.94	12.58	12.83
4853	NASDAQ	CECO	Tue, Aug 27, 2013	12.99	13.22	12.60	12.72
4852	NASDAQ	CECO	Mon, Aug 26, 2013	12.50	13.18	12.34	13.12
4851	NASDAQ	CECO	Fri, Aug 23, 2013	12.46	12.55	12.26	12.53
4850	NASDAQ	CECO	Thu, Aug 22, 2013	12.06	12.52	11.98	12.40
4849	NASDAQ	CECO	Wed, Aug 21, 2013	12.05	12.15	11.83	11.98
4848	NASDAQ	CECO	Tue, Aug 20, 2013	11.86	12.16	11.81	12.09
4847	NASDAQ	CECO	Mon, Aug 19, 2013	12.34	12.37	11.85	11.86
4846	NASDAQ	CECO	Fri, Aug 16, 2013	12.53	12.67	12.26	12.41
4845	NASDAQ	CECO	Thu, Aug 15, 2013	12.98	12.98	12.51	12.60
4844	NASDAQ	CECO	Wed, Aug 14, 2013	13.32	13.27	12.90	13.01
4843	NASDAQ	CECO	Tue, Aug 13, 2013	13.50	13.50	12.77	13.33
4842	NASDAQ	CECO	Mon, Aug 12, 2013	12.98	13.45	12.72	13.35
4841	NASDAQ	CECO	Fri, Aug 9, 2013	13.33	13.33	12.70	12.76
4840	NASDAQ	CECO	Thu, Aug 8, 2013	13.58	13.58	12.87	12.89
4839	NASDAQ	CECO	Wed, Aug 7, 2013	13.30	13.40	13.20	13.26
4838	NASDAQ	CECO	Tue, Aug 6, 2013	13.54	13.54	13.33	13.36
4837	NASDAQ	CECO	Mon, Aug 5, 2013	13.50	13.68	13.45	13.60
4836	NASDAQ	CECO	Fri, Aug 2, 2013	13.36	13.53	13.36	13.47
4835	NASDAQ	CECO	Thu, Aug 1, 2013	13.45	13.60	13.24	13.46
4834	NASDAQ	CECO	Wed, Jul 31, 2013	13.52	13.58	13.34	13.36
4833	NASDAQ	CECO	Tue, Jul 30, 2013	13.45	13.49	13.20	13.45
4832	NASDAQ	CECO	Mon, Jul 29, 2013	13.45	13.53	13.10	13.40
4831	NASDAQ	CECO	Fri, Jul 26, 2013	13.44	13.47	13.14	13.44
4830	NASDAQ	CECO	Thu, Jul 25, 2013	13.54	13.54	13.38	13.50
4829	NASDAQ	CECO	Wed, Jul 24, 2013	13.58	13.58	13.50	13.53
4828	NASDAQ	CECO	Tue, Jul 23, 2013	13.63	13.63	13.44	13.49
4827	NASDAQ	CECO	Mon, Jul 22, 2013	13.68	13.68	13.48	13.54
4826	NASDAQ	CECO	Fri, Jul 19, 2013	13.55	13.65	13.52	13.60
4825	NASDAQ	CECO	Thu, Jul 18, 2013	13.65	13.69	13.55	13.60
4824	NASDAQ	CECO	Wed, Jul 17, 2013	13.35	13.58	13.32	13.56
4823	NASDAQ	CECO	Tue, Jul 16, 2013	13.56	13.59	13.25	13.26
4822	NASDAQ	CECO	Mon, Jul 15, 2013	13.51	13.62	13.47	13.55
4821	NASDAQ	CECO	Fri, Jul 12, 2013	13.55	13.61	13.20	13.39
4820	NASDAQ	CECO	Thu, Jul 11, 2013	13.78	13.78	13.51	13.60
4819	NASDAQ	CECO	Wed, Jul 10, 2013	13.34	13.70	13.21	13.62
4818	NASDAQ	CECO	Tue, Jul 9, 2013	13.31	13.40	13.08	13.37
4817	NASDAQ	CECO	Mon, Jul 8, 2013	12.77	13.35	12.72	13.31
4816	NASDAQ	CECO	Fri, Jul 5, 2013	12.72	12.80	12.54	12.79
4815	NASDAQ	CECO	Wed, Jul 3, 2013	12.46	12.66	12.39	12.54
4814	NASDAQ	CECO	Tue, Jul 2, 2013	12.45	12.62	12.41	12.54
4813	NASDAQ	CECO	Mon, Jul 1, 2013	12.44	12.66	12.04	12.50
4812	NASDAQ	CECO	Fri, Jun 28, 2013	12.49	12.62	12.16	12.30
4811	NASDAQ	CECO	Thu, Jun 27, 2013	12.60	12.60	12.36	12.58
4810	NASDAQ	CECO	Wed, Jun 26, 2013	12.62	12.51	12.25	12.49
4809	NASDAQ	CECO	Tue, Jun 25, 2013	12.68	12.68	12.25	12.52
4808	NASDAQ	CECO	Mon, Jun 24, 2013	12.45	12.68	12.26	12.37
4807	NASDAQ	CECO	Fri, Jun 21, 2013	12.31	12.40	12.25	12.29
4806	NASDAQ	CECO	Thu, Jun 20, 2013	12.34	12.45	12.15	12.26
4805	NASDAQ	CECO	Wed, Jun 19, 2013	12.46	12.60	12.45	12.50
4804	NASDAQ	CECO	Tue, Jun 18, 2013	12.46	12.50	12.25	12.50
4803	NASDAQ	CECO	Mon, Jun 17, 2013	11.96	12.33	11.94	12.20
4802	NASDAQ	CECO	Fri, Jun 14, 2013	12.00	12.04	11.90	11.91
4801	NASDAQ	CECO	Thu, Jun 13, 2013	12.00	12.05	11.94	12.05
4800	NASDAQ	CECO	Wed, Jun 12, 2013	12.06	12.09	11.92	12.01
4799	NASDAQ	CECO	Tue, Jun 11, 2013	11.90	12.10	11.83	12.01
4798	NASDAQ	CECO	Mon, Jun 10, 2013	12.06	12.15	11.85	11.97
4797	NASDAQ	CECO	Fri, Jun 7, 2013	11.78	12.25	11.78	12.05
4796	NASDAQ	CECO	Thu, Jun 6, 2013	11.75	11.86	11.67	11.86
4795	NASDAQ	CECO	Wed, Jun 5, 2013	11.93	11.93	11.63	11.71
4794	NASDAQ	CECO	Tue, Jun 4, 2013	12.00	12.16	11.77	11.92
4793	NASDAQ	CECO	Mon, Jun 3, 2013	12.07	12.07	11.66	12.04
4792	NASDAQ	CECO	Fri, May 31, 2013	12.22	12.30	11.98	12.07
4791	NASDAQ	CECO	Thu, May 30, 2013	12.18	12.35	12.13	12.24
4790	NASDAQ	CECO	Wed, May 29, 2013	12.18	12.31	11.98	12.24
4789	NASDAQ	CECO	Tue, May 28, 2013	12.24	12.36	12.01	12.27
4788	NASDAQ	CECO	Fri, May 24, 2013	12.36	12.45	11.98	12.10
4787	NASDAQ	CECO	Thu, May 23, 2013	11.82	12.40	11.82	12.38
4786	NASDAQ	CECO	Wed, May 22, 2013	12.36	12.46	12.01	12.05
4785	NASDAQ	CECO	Tue, May 21, 2013	12.32	12.50	12.20	12.36
4784	NASDAQ	CECO	Mon, May 20, 2013	12.26	12.41	12.14	12.28
4783	NASDAQ	CECO	Fri, May 17, 2013	12.39	12.42	12.28	12.32
4782	NASDAQ	CECO	Thu, May 16, 2013	12.42	12.56	12.27	12.39
4781	NASDAQ	CECO	Wed, May 15, 2013	12.74	12.79	12.41	12.56
4780	NASDAQ	CECO	Tue, May 14, 2013	12.92	12.97	12.71	12.80
4779	NASDAQ	CECO	Mon, May 13, 2013	12.63	13.00	12.47	12.92
4778	NASDAQ	CECO	Fri, May 10, 2013	12.74	12.90	12.48	12.68
4777	NASDAQ	CECO	Thu, May 9, 2013	12.30	12.80	12.30	12.69
4776	NASDAQ	CECO	Wed, May 8, 2013	12.22	12.31	11.86	12.30
4775	NASDAQ	CECO	Tue, May 7, 2013	12.19	12.28	11.95	12.20
4774	NASDAQ	CECO	Mon, May 6, 2013	12.00	12.08	11.58	12.05
4773	NASDAQ	CECO	Fri, May 3, 2013	12.16	12.19	11.97	12.04
4772	NASDAQ	CECO	Thu, May 2, 2013	11.40	12.09	11.40	12.02
4771	NASDAQ	CECO	Wed, May 1, 2013	11.61	11.64	11.26	11.38
4770	NASDAQ	CECO	Tue, Apr 30, 2013	11.67	12.02	11.58	11.61
4769	NASDAQ	CECO	Mon, Apr 29, 2013	11.52	11.78	11.46	11.71
4768	NASDAQ	CECO	Fri, Apr 26, 2013	11.80	11.93	11.37	11.42
4767	NASDAQ	CECO	Thu, Apr 25, 2013	11.27	11.99	11.16	11.80
4766	NASDAQ	CECO	Wed, Apr 24, 2013	11.19	11.55	11.18	11.28
4765	NASDAQ	CECO	Tue, Apr 23, 2013	10.96	11.27	10.65	11.25
4764	NASDAQ	CECO	Mon, Apr 22, 2013	11.16	11.98	10.44	10.86
4763	NASDAQ	CECO	Fri, Apr 19, 2013	11.08	11.21	10.96	11.12
4762	NASDAQ	CECO	Thu, Apr 18, 2013	10.98	11.21	10.98	11.09
4761	NASDAQ	CECO	Wed, Apr 17, 2013	11.66	11.68	10.75	11.00
4760	NASDAQ	CECO	Tue, Apr 16, 2013	11.73	11.85	11.54	11.75
4759	NASDAQ	CECO	Mon, Apr 15, 2013	11.97	12.09	11.60	11.69
4758	NASDAQ	CECO	Fri, Apr 12, 2013	12.35	12.36	11.78	11.97
4757	NASDAQ	CECO	Thu, Apr 11, 2013	12.30	12.81	12.30	12.49
4756	NASDAQ	CECO	Wed, Apr 10, 2013	11.62	12.42	11.27	12.35
4755	NASDAQ	CECO	Tue, Apr 9, 2013	12.00	12.00	11.56	11.62
4754	NASDAQ	CECO	Mon, Apr 8, 2013	11.85	12.13	11.67	12.01
4753	NASDAQ	CECO	Fri, Apr 5, 2013	11.61	11.98	11.60	11.93
4752	NASDAQ	CECO	Thu, Apr 4, 2013	12.22	12.46	11.74	11.95
4751	NASDAQ	CECO	Wed, Apr 3, 2013	12.29	12.31	12.00	12.14
4750	NASDAQ	CECO	Tue, Apr 2, 2013	12.32	12.89	12.13	12.18
4749	NASDAQ	CECO	Mon, Apr 1, 2013	13.00	13.18	12.10	12.19
4748	NASDAQ	CECO	Thu, Mar 28, 2013	12.35	13.09	12.13	12.93
4747	NASDAQ	CECO	Wed, Mar 27, 2013	12.20	12.44	12.01	12.26
4746	NASDAQ	CECO	Tue, Mar 26, 2013	13.00	13.00	12.19	12.21
4745	NASDAQ	CECO	Mon, Mar 25, 2013	13.92	13.92	12.52	12.92
4744	NASDAQ	CECO	Fri, Mar 22, 2013	13.30	14.32	13.19	13.92
4743	NASDAQ	CECO	Thu, Mar 21, 2013	13.47	13.51	13.08	13.35
4742	NASDAQ	CECO	Wed, Mar 20, 2013	13.14	13.60	13.08	13.51
4741	NASDAQ	CECO	Tue, Mar 19, 2013	13.00	13.24	12.97	13.05
4740	NASDAQ	CECO	Mon, Mar 18, 2013	12.78	13.23	12.67	13.08
4739	NASDAQ	CECO	Fri, Mar 15, 2013	13.00	13.00	12.89	12.98
4738	NASDAQ	CECO	Thu, Mar 14, 2013	12.90	13.00	12.85	13.00
4737	NASDAQ	CECO	Wed, Mar 13, 2013	12.71	12.98	12.64	12.98
4736	NASDAQ	CECO	Tue, Mar 12, 2013	12.56	12.99	12.69	12.74
4735	NASDAQ	CECO	Mon, Mar 11, 2013	12.44	12.82	12.35	12.62
4734	NASDAQ	CECO	Fri, Mar 8, 2013	11.83	12.35	11.80	12.19
4733	NASDAQ	CECO	Thu, Mar 7, 2013	11.52	11.92	11.51	11.80
4732	NASDAQ	CECO	Wed, Mar 6, 2013	11.89	12.22	11.89	12.16
4731	NASDAQ	CECO	Tue, Mar 5, 2013	11.50	12.25	11.50	11.97
4730	NASDAQ	CECO	Mon, Mar 4, 2013	11.00	11.50	10.99	11.47
4729	NASDAQ	CECO	Fri, Mar 1, 2013	10.80	11.00	10.74	11.00
4728	NASDAQ	CECO	Thu, Feb 28, 2013	10.56	10.88	10.51	10.80
4727	NASDAQ	CECO	Wed, Feb 27, 2013	10.38	10.61	10.34	10.56
4726	NASDAQ	CECO	Tue, Feb 26, 2013	10.64	10.65	10.45	10.47
4725	NASDAQ	CECO	Mon, Feb 25, 2013	10.94	11.02	10.62	10.63
4724	NASDAQ	CECO	Fri, Feb 22, 2013	10.84	10.91	10.53	10.90
4723	NASDAQ	CECO	Thu, Feb 21, 2013	10.85	11.04	10.46	10.81
4722	NASDAQ	CECO	Wed, Feb 20, 2013	10.85	11.10	10.66	10.85
4721	NASDAQ	CECO	Tue, Feb 19, 2013	10.69	10.85	10.26	10.84
4720	NASDAQ	CECO	Fri, Feb 15, 2013	10.80	10.84	10.60	10.65
4719	NASDAQ	CECO	Thu, Feb 14, 2013	10.86	10.92	10.70	10.72
4718	NASDAQ	CECO	Wed, Feb 13, 2013	10.90	10.90	10.67	10.86
4717	NASDAQ	CECO	Tue, Feb 12, 2013	10.97	10.97	10.81	10.87
4716	NASDAQ	CECO	Mon, Feb 11, 2013	10.94	10.98	10.65	10.92
4715	NASDAQ	CECO	Fri, Feb 8, 2013	10.73	10.89	10.73	10.88
4714	NASDAQ	CECO	Thu, Feb 7, 2013	10.89	10.96	10.65	10.68
4713	NASDAQ	CECO	Wed, Feb 6, 2013	11.12	11.16	10.74	10.89
4712	NASDAQ	CECO	Tue, Feb 5, 2013	11.09	11.17	10.98	11.10
4711	NASDAQ	CECO	Mon, Feb 4, 2013	11.06	11.14	11.03	11.03
4710	NASDAQ	CECO	Fri, Feb 1, 2013	11.08	11.14	10.93	11.11
4709	NASDAQ	CECO	Thu, Jan 31, 2013	10.75	11.07	10.73	11.06
4708	NASDAQ	CECO	Wed, Jan 30, 2013	10.75	10.92	10.73	10.78
4707	NASDAQ	CECO	Tue, Jan 29, 2013	10.77	10.86	10.72	10.76
4706	NASDAQ	CECO	Mon, Jan 28, 2013	10.89	10.96	10.73	10.90
4705	NASDAQ	CECO	Fri, Jan 25, 2013	10.70	10.84	10.60	10.79
4704	NASDAQ	CECO	Thu, Jan 24, 2013	11.17	11.17	10.54	10.69
4703	NASDAQ	CECO	Wed, Jan 23, 2013	11.06	11.24	11.03	11.11
4702	NASDAQ	CECO	Tue, Jan 22, 2013	10.85	11.16	10.85	11.10
4701	NASDAQ	CECO	Fri, Jan 18, 2013	10.39	10.84	10.37	10.80
4700	NASDAQ	CECO	Thu, Jan 17, 2013	10.19	10.38	10.15	10.37
4699	NASDAQ	CECO	Wed, Jan 16, 2013	10.75	10.92	9.92	10.13
4698	NASDAQ	CECO	Tue, Jan 15, 2013	10.97	11.18	10.48	10.74
4697	NASDAQ	CECO	Mon, Jan 14, 2013	10.80	10.97	10.57	10.91
4696	NASDAQ	CECO	Fri, Jan 11, 2013	10.45	10.87	10.44	10.77
4695	NASDAQ	CECO	Thu, Jan 10, 2013	10.48	10.58	10.35	10.41
4694	NASDAQ	CECO	Wed, Jan 9, 2013	10.50	10.50	10.44	10.49
4693	NASDAQ	CECO	Tue, Jan 8, 2013	10.44	10.55	10.39	10.50
4692	NASDAQ	CECO	Mon, Jan 7, 2013	10.45	10.59	10.41	10.48
4691	NASDAQ	CECO	Fri, Jan 4, 2013	10.15	10.42	9.98	10.41
4690	NASDAQ	CECO	Thu, Jan 3, 2013	10.10	10.43	10.04	10.15
4689	NASDAQ	CECO	Wed, Jan 2, 2013	10.00	10.11	9.98	10.08
4688	NASDAQ	CECO	Mon, Dec 31, 2012	9.71	9.96	9.58	9.95
4687	NASDAQ	CECO	Fri, Dec 28, 2012	9.83	9.89	9.55	9.60
4686	NASDAQ	CECO	Thu, Dec 27, 2012	9.94	9.94	9.78	9.84
4685	NASDAQ	CECO	Wed, Dec 26, 2012	9.84	9.99	9.67	9.95
4684	NASDAQ	CECO	Mon, Dec 24, 2012	9.77	9.86	9.72	9.76
4683	NASDAQ	CECO	Fri, Dec 21, 2012	9.70	9.99	9.58	9.76
4682	NASDAQ	CECO	Thu, Dec 20, 2012	9.53	9.78	9.53	9.77
4681	NASDAQ	CECO	Wed, Dec 19, 2012	9.34	9.54	9.33	9.54
4680	NASDAQ	CECO	Tue, Dec 18, 2012	9.41	9.41	9.21	9.31
4679	NASDAQ	CECO	Mon, Dec 17, 2012	9.34	9.44	9.25	9.40
4678	NASDAQ	CECO	Fri, Dec 14, 2012	9.32	9.39	9.28	9.34
4677	NASDAQ	CECO	Thu, Dec 13, 2012	9.27	9.38	9.21	9.32
4676	NASDAQ	CECO	Wed, Dec 12, 2012	9.31	9.33	9.18	9.29
4675	NASDAQ	CECO	Tue, Dec 11, 2012	9.38	9.38	9.11	9.31
4674	NASDAQ	CECO	Mon, Dec 10, 2012	9.37	9.38	8.77	9.37
4673	NASDAQ	CECO	Fri, Dec 7, 2012	9.36	9.47	9.12	9.34
4672	NASDAQ	CECO	Thu, Dec 6, 2012	9.22	9.43	9.22	9.41
4671	NASDAQ	CECO	Wed, Dec 5, 2012	9.32	9.44	9.21	9.21
4670	NASDAQ	CECO	Tue, Dec 4, 2012	9.25	9.36	9.16	9.32
4669	NASDAQ	CECO	Mon, Dec 3, 2012	9.41	9.55	9.18	9.29
4668	NASDAQ	CECO	Fri, Nov 30, 2012	9.65	9.65	9.29	9.32
4667	NASDAQ	CECO	Thu, Nov 29, 2012	9.72	9.73	9.56	9.64
4666	NASDAQ	CECO	Wed, Nov 28, 2012	9.50	9.61	9.36	9.61
4665	NASDAQ	CECO	Tue, Nov 27, 2012	9.46	9.68	9.46	9.59
4664	NASDAQ	CECO	Mon, Nov 26, 2012	9.67	9.67	9.34	9.52
4663	NASDAQ	CECO	Fri, Nov 23, 2012	9.39	9.68	9.37	9.62
4662	NASDAQ	CECO	Wed, Nov 21, 2012	9.43	9.50	9.25	9.37
4661	NASDAQ	CECO	Tue, Nov 20, 2012	9.43	9.43	9.17	9.35
4660	NASDAQ	CECO	Mon, Nov 19, 2012	9.51	9.74	9.37	9.50
4659	NASDAQ	CECO	Fri, Nov 16, 2012	9.51	9.57	9.27	9.38
4658	NASDAQ	CECO	Thu, Nov 15, 2012	9.26	9.85	9.26	9.63
4657	NASDAQ	CECO	Wed, Nov 14, 2012	9.55	9.90	9.26	9.30
4656	NASDAQ	CECO	Tue, Nov 13, 2012	10.05	10.09	9.39	9.65
4655	NASDAQ	CECO	Mon, Nov 12, 2012	9.85	10.10	9.01	10.08
4654	NASDAQ	CECO	Fri, Nov 9, 2012	9.82	9.99	9.51	9.87
4653	NASDAQ	CECO	Thu, Nov 8, 2012	9.99	10.10	9.86	9.93
4652	NASDAQ	CECO	Wed, Nov 7, 2012	9.42	9.99	9.01	9.90
4651	NASDAQ	CECO	Tue, Nov 6, 2012	9.63	10.04	9.01	9.37
4650	NASDAQ	CECO	Mon, Nov 5, 2012	8.97	9.60	8.91	9.55
4649	NASDAQ	CECO	Fri, Nov 2, 2012	8.91	9.05	8.87	8.97
4648	NASDAQ	CECO	Thu, Nov 1, 2012	8.88	8.99	8.75	8.91
4647	NASDAQ	CECO	Wed, Oct 31, 2012	8.94	9.23	8.75	8.85
4646	NASDAQ	CECO	Fri, Oct 26, 2012	9.28	9.29	8.79	9.01
4645	NASDAQ	CECO	Thu, Oct 25, 2012	9.29	9.48	9.21	9.31
4644	NASDAQ	CECO	Wed, Oct 24, 2012	9.29	9.44	9.21	9.31
4643	NASDAQ	CECO	Tue, Oct 23, 2012	9.26	9.38	9.25	9.29
4642	NASDAQ	CECO	Mon, Oct 22, 2012	9.17	9.35	9.16	9.30
4641	NASDAQ	CECO	Fri, Oct 19, 2012	9.71	9.74	9.17	9.17
4640	NASDAQ	CECO	Thu, Oct 18, 2012	9.55	9.87	9.55	9.82
4639	NASDAQ	CECO	Wed, Oct 17, 2012	9.46	9.57	9.45	9.56
4638	NASDAQ	CECO	Tue, Oct 16, 2012	9.50	9.50	9.36	9.45
4637	NASDAQ	CECO	Mon, Oct 15, 2012	9.50	9.55	9.27	9.49
4636	NASDAQ	CECO	Fri, Oct 12, 2012	9.56	9.59	9.36	9.48
4635	NASDAQ	CECO	Thu, Oct 11, 2012	9.36	9.89	9.36	9.59
4634	NASDAQ	CECO	Wed, Oct 10, 2012	9.42	9.50	9.25	9.31
4633	NASDAQ	CECO	Tue, Oct 9, 2012	9.82	9.82	9.42	9.44
4632	NASDAQ	CECO	Mon, Oct 8, 2012	9.58	9.85	9.35	9.79
4631	NASDAQ	CECO	Fri, Oct 5, 2012	9.61	9.75	9.50	9.67
4630	NASDAQ	CECO	Thu, Oct 4, 2012	9.57	9.66	9.40	9.60
4629	NASDAQ	CECO	Wed, Oct 3, 2012	9.41	9.67	9.34	9.51
4628	NASDAQ	CECO	Tue, Oct 2, 2012	9.49	9.61	9.45	9.47
4627	NASDAQ	CECO	Mon, Oct 1, 2012	9.84	9.90	9.19	9.44
4626	NASDAQ	CECO	Fri, Sep 28, 2012	10.05	10.17	9.74	9.77
4625	NASDAQ	CECO	Thu, Sep 27, 2012	9.60	10.07	9.56	10.02
4624	NASDAQ	CECO	Wed, Sep 26, 2012	9.85	9.87	9.50	9.60
4623	NASDAQ	CECO	Tue, Sep 25, 2012	10.15	10.20	9.80	9.85
4622	NASDAQ	CECO	Mon, Sep 24, 2012	10.07	10.15	10.01	10.08
4621	NASDAQ	CECO	Fri, Sep 21, 2012	9.94	10.18	9.93	10.03
4620	NASDAQ	CECO	Thu, Sep 20, 2012	9.45	9.73	9.15	9.73
4619	NASDAQ	CECO	Wed, Sep 19, 2012	9.75	9.83	9.57	9.59
4618	NASDAQ	CECO	Tue, Sep 18, 2012	9.79	9.84	9.71	9.76
4617	NASDAQ	CECO	Mon, Sep 17, 2012	9.77	9.84	9.75	9.83
4616	NASDAQ	CECO	Fri, Sep 14, 2012	9.78	9.96	9.72	9.84
4615	NASDAQ	CECO	Thu, Sep 13, 2012	9.44	9.75	9.41	9.69
4614	NASDAQ	CECO	Wed, Sep 12, 2012	9.33	9.53	9.33	9.47
4613	NASDAQ	CECO	Tue, Sep 11, 2012	9.32	9.49	9.04	9.48
4612	NASDAQ	CECO	Mon, Sep 10, 2012	9.24	9.49	9.06	9.32
4611	NASDAQ	CECO	Fri, Sep 7, 2012	9.60	9.60	9.03	9.23
4610	NASDAQ	CECO	Thu, Sep 6, 2012	9.85	9.88	9.35	9.54
4609	NASDAQ	CECO	Wed, Sep 5, 2012	9.74	9.90	9.63	9.80
4608	NASDAQ	CECO	Tue, Sep 4, 2012	9.50	9.80	9.42	9.78
4607	NASDAQ	CECO	Fri, Aug 31, 2012	9.19	9.50	9.19	9.48
4606	NASDAQ	CECO	Thu, Aug 30, 2012	9.02	9.16	8.97	9.12
4605	NASDAQ	CECO	Wed, Aug 29, 2012	9.27	9.27	8.92	9.08
4604	NASDAQ	CECO	Tue, Aug 28, 2012	9.30	9.39	9.17	9.23
4603	NASDAQ	CECO	Mon, Aug 27, 2012	9.29	9.75	9.20	9.30
4602	NASDAQ	CECO	Fri, Aug 24, 2012	9.13	9.31	8.93	9.31
4601	NASDAQ	CECO	Thu, Aug 23, 2012	9.18	9.20	9.05	9.16
4600	NASDAQ	CECO	Wed, Aug 22, 2012	9.06	9.21	9.06	9.16
4599	NASDAQ	CECO	Tue, Aug 21, 2012	9.20	9.20	9.00	9.06
4598	NASDAQ	CECO	Mon, Aug 20, 2012	9.13	9.25	8.86	9.17
4597	NASDAQ	CECO	Fri, Aug 17, 2012	9.35	9.35	9.04	9.17
4596	NASDAQ	CECO	Thu, Aug 16, 2012	8.99	9.43	8.77	9.35
4595	NASDAQ	CECO	Wed, Aug 15, 2012	8.25	8.99	8.25	8.99
4594	NASDAQ	CECO	Tue, Aug 14, 2012	8.15	8.30	8.15	8.29
4593	NASDAQ	CECO	Mon, Aug 13, 2012	8.15	8.27	8.04	8.09
4592	NASDAQ	CECO	Fri, Aug 10, 2012	8.26	8.34	7.81	8.20
4591	NASDAQ	CECO	Thu, Aug 9, 2012	7.90	8.37	7.90	8.23
4590	NASDAQ	CECO	Wed, Aug 8, 2012	7.85	7.99	7.85	7.97
4589	NASDAQ	CECO	Tue, Aug 7, 2012	8.00	8.00	7.70	7.88
4588	NASDAQ	CECO	Mon, Aug 6, 2012	8.00	8.02	7.96	7.98
4587	NASDAQ	CECO	Fri, Aug 3, 2012	8.02	8.02	7.94	8.02
4586	NASDAQ	CECO	Thu, Aug 2, 2012	7.90	8.00	7.80	7.95
4585	NASDAQ	CECO	Wed, Aug 1, 2012	7.94	8.02	7.79	7.90
4584	NASDAQ	CECO	Tue, Jul 31, 2012	8.00	8.01	7.85	8.00
4583	NASDAQ	CECO	Mon, Jul 30, 2012	8.02	8.02	7.96	8.00
4582	NASDAQ	CECO	Fri, Jul 27, 2012	8.00	8.00	7.91	7.99
4581	NASDAQ	CECO	Thu, Jul 26, 2012	8.15	8.15	7.90	7.99
4580	NASDAQ	CECO	Wed, Jul 25, 2012	7.88	8.04	7.75	8.02
4579	NASDAQ	CECO	Tue, Jul 24, 2012	7.90	7.90	7.70	7.82
4578	NASDAQ	CECO	Mon, Jul 23, 2012	8.08	8.09	7.85	7.85
4577	NASDAQ	CECO	Fri, Jul 20, 2012	8.21	8.25	8.11	8.17
4576	NASDAQ	CECO	Thu, Jul 19, 2012	8.16	8.25	7.93	8.22
4575	NASDAQ	CECO	Wed, Jul 18, 2012	8.04	8.17	8.04	8.16
4574	NASDAQ	CECO	Tue, Jul 17, 2012	8.20	8.22	8.11	8.14
4573	NASDAQ	CECO	Mon, Jul 16, 2012	8.08	8.20	8.08	8.15
4572	NASDAQ	CECO	Fri, Jul 13, 2012	8.20	8.20	8.07	8.14
4571	NASDAQ	CECO	Thu, Jul 12, 2012	7.84	8.18	7.75	8.16
4570	NASDAQ	CECO	Wed, Jul 11, 2012	7.82	8.02	7.73	7.91
4569	NASDAQ	CECO	Tue, Jul 10, 2012	7.96	7.99	7.72	7.82
4568	NASDAQ	CECO	Mon, Jul 9, 2012	7.78	7.96	7.60	7.87
4567	NASDAQ	CECO	Fri, Jul 6, 2012	7.68	7.79	7.45	7.57
4566	NASDAQ	CECO	Thu, Jul 5, 2012	8.01	8.05	7.69	7.75
4565	NASDAQ	CECO	Tue, Jul 3, 2012	8.05	8.10	7.95	8.10
4564	NASDAQ	CECO	Mon, Jul 2, 2012	7.88	8.00	7.80	7.99
4563	NASDAQ	CECO	Fri, Jun 29, 2012	7.66	7.94	7.66	7.90
4562	NASDAQ	CECO	Thu, Jun 28, 2012	7.36	7.57	7.24	7.51
4561	NASDAQ	CECO	Wed, Jun 27, 2012	7.22	7.53	7.22	7.40
4560	NASDAQ	CECO	Tue, Jun 26, 2012	7.45	7.65	7.21	7.25
4559	NASDAQ	CECO	Mon, Jun 25, 2012	7.37	7.54	7.11	7.41
4558	NASDAQ	CECO	Fri, Jun 22, 2012	7.77	7.80	7.29	7.30
4557	NASDAQ	CECO	Thu, Jun 21, 2012	8.07	8.15	7.49	7.72
4556	NASDAQ	CECO	Wed, Jun 20, 2012	8.14	8.18	7.91	8.11
4555	NASDAQ	CECO	Tue, Jun 19, 2012	7.65	8.11	7.57	8.08
4554	NASDAQ	CECO	Mon, Jun 18, 2012	7.69	7.70	7.51	7.67
4553	NASDAQ	CECO	Fri, Jun 15, 2012	7.73	7.75	7.63	7.74
4552	NASDAQ	CECO	Thu, Jun 14, 2012	7.59	8.00	7.52	7.77
4551	NASDAQ	CECO	Wed, Jun 13, 2012	7.41	7.75	7.41	7.63
4550	NASDAQ	CECO	Tue, Jun 12, 2012	7.33	7.65	7.33	7.48
4549	NASDAQ	CECO	Mon, Jun 11, 2012	7.54	7.54	7.23	7.38
4548	NASDAQ	CECO	Fri, Jun 8, 2012	7.41	7.54	7.31	7.45
4547	NASDAQ	CECO	Thu, Jun 7, 2012	7.28	7.45	7.16	7.38
4546	NASDAQ	CECO	Wed, Jun 6, 2012	7.12	7.44	7.12	7.29
4545	NASDAQ	CECO	Tue, Jun 5, 2012	7.12	7.15	7.06	7.08
4544	NASDAQ	CECO	Mon, Jun 4, 2012	7.04	7.11	6.96	7.03
4543	NASDAQ	CECO	Fri, Jun 1, 2012	7.08	7.12	6.99	7.07
4542	NASDAQ	CECO	Thu, May 31, 2012	7.25	7.25	7.03	7.08
4541	NASDAQ	CECO	Wed, May 30, 2012	7.13	7.22	7.06	7.18
4540	NASDAQ	CECO	Tue, May 29, 2012	7.22	7.25	6.89	7.24
4539	NASDAQ	CECO	Fri, May 25, 2012	6.97	7.23	6.84	7.15
4538	NASDAQ	CECO	Thu, May 24, 2012	7.09	7.15	6.81	7.04
4537	NASDAQ	CECO	Wed, May 23, 2012	7.01	7.06	6.87	7.04
4536	NASDAQ	CECO	Tue, May 22, 2012	7.03	7.13	6.83	7.04
4535	NASDAQ	CECO	Mon, May 21, 2012	7.39	7.42	7.01	7.09
4534	NASDAQ	CECO	Fri, May 18, 2012	7.19	7.40	7.11	7.33
4533	NASDAQ	CECO	Thu, May 17, 2012	7.16	7.33	7.04	7.11
4532	NASDAQ	CECO	Wed, May 16, 2012	7.20	7.49	7.19	7.20
4531	NASDAQ	CECO	Tue, May 15, 2012	7.00	7.31	7.00	7.07
4530	NASDAQ	CECO	Mon, May 14, 2012	7.35	7.42	7.09	7.13
4529	NASDAQ	CECO	Fri, May 11, 2012	7.60	7.70	7.38	7.47
4528	NASDAQ	CECO	Thu, May 10, 2012	8.09	8.09	7.54	7.69
4527	NASDAQ	CECO	Wed, May 9, 2012	7.27	7.59	7.16	7.56
4526	NASDAQ	CECO	Tue, May 8, 2012	7.67	7.75	7.20	7.49
4525	NASDAQ	CECO	Mon, May 7, 2012	7.59	7.85	7.31	7.76
4524	NASDAQ	CECO	Fri, May 4, 2012	8.00	8.02	7.39	7.54
4523	NASDAQ	CECO	Thu, May 3, 2012	8.15	8.23	7.93	7.99
4522	NASDAQ	CECO	Wed, May 2, 2012	8.23	8.23	8.11	8.17
4521	NASDAQ	CECO	Tue, May 1, 2012	8.18	8.21	8.10	8.15
4520	NASDAQ	CECO	Mon, Apr 30, 2012	8.08	8.22	8.00	8.20
4519	NASDAQ	CECO	Fri, Apr 27, 2012	8.21	8.25	8.10	8.10
4518	NASDAQ	CECO	Thu, Apr 26, 2012	8.22	8.28	8.05	8.28
4517	NASDAQ	CECO	Wed, Apr 25, 2012	8.37	8.37	8.03	8.15
4516	NASDAQ	CECO	Tue, Apr 24, 2012	8.35	8.35	8.30	8.35
4515	NASDAQ	CECO	Mon, Apr 23, 2012	8.26	8.35	8.01	8.35
4514	NASDAQ	CECO	Fri, Apr 20, 2012	8.25	8.30	8.09	8.27
4513	NASDAQ	CECO	Thu, Apr 19, 2012	8.26	8.26	8.19	8.22
4512	NASDAQ	CECO	Wed, Apr 18, 2012	8.26	8.33	8.21	8.26
4511	NASDAQ	CECO	Tue, Apr 17, 2012	8.25	8.25	8.18	8.25
4510	NASDAQ	CECO	Mon, Apr 16, 2012	8.13	8.32	8.13	8.28
4509	NASDAQ	CECO	Fri, Apr 13, 2012	8.23	8.25	8.07	8.21
4508	NASDAQ	CECO	Thu, Apr 12, 2012	8.22	8.33	8.22	8.32
4507	NASDAQ	CECO	Wed, Apr 11, 2012	8.24	8.30	8.17	8.27
4506	NASDAQ	CECO	Tue, Apr 10, 2012	8.25	8.25	8.11	8.24
4505	NASDAQ	CECO	Mon, Apr 9, 2012	8.03	8.30	7.82	8.13
4504	NASDAQ	CECO	Thu, Apr 5, 2012	8.24	8.33	8.16	8.23
4503	NASDAQ	CECO	Wed, Apr 4, 2012	8.19	8.26	8.16	8.21
4502	NASDAQ	CECO	Tue, Apr 3, 2012	8.33	8.34	8.18	8.31
4501	NASDAQ	CECO	Mon, Apr 2, 2012	7.82	8.27	7.81	8.25
4500	NASDAQ	CECO	Fri, Mar 30, 2012	7.90	7.93	7.73	7.75
4499	NASDAQ	CECO	Thu, Mar 29, 2012	7.74	7.86	7.50	7.79
4498	NASDAQ	CECO	Wed, Mar 28, 2012	7.77	7.78	7.52	7.69
4497	NASDAQ	CECO	Tue, Mar 27, 2012	7.90	7.90	7.50	7.71
4496	NASDAQ	CECO	Mon, Mar 26, 2012	8.29	8.37	7.71	7.95
4495	NASDAQ	CECO	Fri, Mar 23, 2012	8.16	8.20	8.13	8.15
4494	NASDAQ	CECO	Thu, Mar 22, 2012	8.40	8.40	8.07	8.29
4493	NASDAQ	CECO	Wed, Mar 21, 2012	8.41	8.47	8.35	8.36
4492	NASDAQ	CECO	Tue, Mar 20, 2012	8.47	8.47	8.32	8.42
4491	NASDAQ	CECO	Mon, Mar 19, 2012	8.30	8.50	8.25	8.48
4490	NASDAQ	CECO	Fri, Mar 16, 2012	8.16	8.65	8.02	8.40
4489	NASDAQ	CECO	Thu, Mar 15, 2012	8.15	8.40	7.80	8.20
4488	NASDAQ	CECO	Wed, Mar 14, 2012	8.50	8.50	7.60	8.25
4487	NASDAQ	CECO	Tue, Mar 13, 2012	8.55	8.60	8.39	8.47
4486	NASDAQ	CECO	Mon, Mar 12, 2012	7.90	8.60	7.61	8.58
4485	NASDAQ	CECO	Fri, Mar 9, 2012	7.50	8.20	7.50	7.93
4484	NASDAQ	CECO	Thu, Mar 8, 2012	7.35	7.50	6.90	7.40
4483	NASDAQ	CECO	Wed, Mar 7, 2012	7.00	7.24	6.95	7.20
4482	NASDAQ	CECO	Tue, Mar 6, 2012	7.00	7.06	6.91	6.96
4481	NASDAQ	CECO	Mon, Mar 5, 2012	7.10	7.20	6.90	6.95
4480	NASDAQ	CECO	Fri, Mar 2, 2012	7.27	7.30	7.08	7.18
4479	NASDAQ	CECO	Thu, Mar 1, 2012	7.21	7.31	7.12	7.24
4478	NASDAQ	CECO	Wed, Feb 29, 2012	7.17	7.24	7.02	7.15
4477	NASDAQ	CECO	Tue, Feb 28, 2012	7.20	7.25	7.07	7.07
4476	NASDAQ	CECO	Mon, Feb 27, 2012	7.18	7.24	7.16	7.20
4475	NASDAQ	CECO	Fri, Feb 24, 2012	7.21	7.24	7.16	7.17
4474	NASDAQ	CECO	Thu, Feb 23, 2012	7.08	7.21	7.08	7.17
4473	NASDAQ	CECO	Wed, Feb 22, 2012	7.15	7.18	6.94	7.05
4472	NASDAQ	CECO	Tue, Feb 21, 2012	6.99	7.14	6.99	7.11
4471	NASDAQ	CECO	Fri, Feb 17, 2012	6.89	7.03	6.87	6.99
4470	NASDAQ	CECO	Thu, Feb 16, 2012	6.92	7.07	6.71	6.96
4469	NASDAQ	CECO	Wed, Feb 15, 2012	6.85	6.98	6.67	6.97
4468	NASDAQ	CECO	Tue, Feb 14, 2012	6.85	7.12	6.83	6.91
4467	NASDAQ	CECO	Mon, Feb 13, 2012	6.60	6.93	6.60	6.73
4466	NASDAQ	CECO	Fri, Feb 10, 2012	6.68	6.70	6.60	6.60
4465	NASDAQ	CECO	Thu, Feb 9, 2012	6.96	7.10	6.61	6.64
4464	NASDAQ	CECO	Wed, Feb 8, 2012	6.58	6.95	6.58	6.95
4463	NASDAQ	CECO	Tue, Feb 7, 2012	6.63	6.68	6.41	6.59
4462	NASDAQ	CECO	Mon, Feb 6, 2012	6.43	6.55	6.40	6.46
4461	NASDAQ	CECO	Fri, Feb 3, 2012	6.49	6.64	6.33	6.40
4460	NASDAQ	CECO	Thu, Feb 2, 2012	6.32	6.35	6.30	6.35
4459	NASDAQ	CECO	Wed, Feb 1, 2012	6.40	6.44	6.35	6.35
4458	NASDAQ	CECO	Tue, Jan 31, 2012	6.42	6.42	6.16	6.36
4457	NASDAQ	CECO	Mon, Jan 30, 2012	6.25	6.38	6.25	6.37
4456	NASDAQ	CECO	Fri, Jan 27, 2012	6.31	6.50	6.25	6.50
4455	NASDAQ	CECO	Thu, Jan 26, 2012	6.31	6.49	6.12	6.36
4454	NASDAQ	CECO	Wed, Jan 25, 2012	6.02	6.34	5.95	6.34
4453	NASDAQ	CECO	Tue, Jan 24, 2012	6.08	6.09	5.98	6.08
4452	NASDAQ	CECO	Mon, Jan 23, 2012	6.08	6.08	6.04	6.08
4451	NASDAQ	CECO	Fri, Jan 20, 2012	6.04	6.08	6.00	6.08
4450	NASDAQ	CECO	Thu, Jan 19, 2012	6.04	6.04	5.99	6.04
4449	NASDAQ	CECO	Wed, Jan 18, 2012	6.13	6.13	5.95	6.04
4448	NASDAQ	CECO	Tue, Jan 17, 2012	6.15	6.15	6.10	6.10
4447	NASDAQ	CECO	Fri, Jan 13, 2012	6.05	6.16	5.95	6.16
4446	NASDAQ	CECO	Thu, Jan 12, 2012	5.98	6.10	5.95	6.10
4445	NASDAQ	CECO	Wed, Jan 11, 2012	5.90	6.15	5.90	5.96
4444	NASDAQ	CECO	Tue, Jan 10, 2012	5.81	5.93	5.81	5.92
4443	NASDAQ	CECO	Mon, Jan 9, 2012	5.75	5.89	5.75	5.80
4442	NASDAQ	CECO	Fri, Jan 6, 2012	5.69	5.75	5.65	5.75
4441	NASDAQ	CECO	Thu, Jan 5, 2012	5.68	5.75	5.67	5.75
4440	NASDAQ	CECO	Wed, Jan 4, 2012	5.64	5.76	5.60	5.62
4439	NASDAQ	CECO	Tue, Jan 3, 2012	5.68	5.84	5.46	5.60
4438	NASDAQ	CECO	Fri, Dec 30, 2011	5.74	5.74	5.50	5.55
4437	NASDAQ	CECO	Thu, Dec 29, 2011	5.82	5.82	5.62	5.69
4436	NASDAQ	CECO	Wed, Dec 28, 2011	5.81	5.94	5.70	5.72
4435	NASDAQ	CECO	Tue, Dec 27, 2011	5.80	5.98	5.74	5.84
4434	NASDAQ	CECO	Fri, Dec 23, 2011	5.77	5.88	5.64	5.87
4433	NASDAQ	CECO	Thu, Dec 22, 2011	5.68	5.80	5.44	5.75
4432	NASDAQ	CECO	Wed, Dec 21, 2011	5.46	5.61	5.27	5.50
4431	NASDAQ	CECO	Tue, Dec 20, 2011	5.71	5.73	5.48	5.55
4430	NASDAQ	CECO	Mon, Dec 19, 2011	5.77	5.84	5.68	5.71
4429	NASDAQ	CECO	Fri, Dec 16, 2011	5.72	5.80	5.52	5.70
4428	NASDAQ	CECO	Thu, Dec 15, 2011	5.99	6.01	5.72	5.72
4427	NASDAQ	CECO	Wed, Dec 14, 2011	5.92	6.02	5.82	5.96
4426	NASDAQ	CECO	Tue, Dec 13, 2011	5.99	6.03	5.84	5.98
4425	NASDAQ	CECO	Mon, Dec 12, 2011	6.06	6.06	5.93	5.95
4424	NASDAQ	CECO	Fri, Dec 9, 2011	6.12	6.15	5.96	6.07
4423	NASDAQ	CECO	Thu, Dec 8, 2011	6.20	6.20	6.09	6.10
4422	NASDAQ	CECO	Wed, Dec 7, 2011	6.25	6.25	6.14	6.20
4421	NASDAQ	CECO	Tue, Dec 6, 2011	6.19	6.19	6.05	6.15
4420	NASDAQ	CECO	Mon, Dec 5, 2011	6.20	6.24	6.08	6.15
4419	NASDAQ	CECO	Fri, Dec 2, 2011	6.10	6.20	6.06	6.10
4418	NASDAQ	CECO	Thu, Dec 1, 2011	6.19	6.19	6.06	6.10
4417	NASDAQ	CECO	Wed, Nov 30, 2011	6.23	6.23	6.07	6.07
4416	NASDAQ	CECO	Tue, Nov 29, 2011	6.24	6.24	6.01	6.10
4415	NASDAQ	CECO	Mon, Nov 28, 2011	6.13	6.25	5.87	6.24
4414	NASDAQ	CECO	Fri, Nov 25, 2011	5.75	6.12	5.75	5.96
4413	NASDAQ	CECO	Wed, Nov 23, 2011	6.00	6.15	5.80	6.06
4412	NASDAQ	CECO	Tue, Nov 22, 2011	6.15	6.22	6.00	6.00
4411	NASDAQ	CECO	Mon, Nov 21, 2011	6.15	6.21	6.03	6.21
4410	NASDAQ	CECO	Fri, Nov 18, 2011	6.22	6.29	6.18	6.21
4409	NASDAQ	CECO	Thu, Nov 17, 2011	6.15	6.27	6.15	6.20
4408	NASDAQ	CECO	Wed, Nov 16, 2011	6.17	6.23	6.15	6.15
4407	NASDAQ	CECO	Tue, Nov 15, 2011	6.24	6.25	6.15	6.23
4406	NASDAQ	CECO	Mon, Nov 14, 2011	6.28	6.44	6.23	6.25
4405	NASDAQ	CECO	Fri, Nov 11, 2011	6.23	6.49	6.23	6.40
4404	NASDAQ	CECO	Thu, Nov 10, 2011	5.97	6.49	5.82	6.19
4403	NASDAQ	CECO	Wed, Nov 9, 2011	6.00	6.11	6.00	6.08
4402	NASDAQ	CECO	Tue, Nov 8, 2011	5.88	6.00	5.77	6.00
4401	NASDAQ	CECO	Mon, Nov 7, 2011	5.97	5.99	5.75	5.89
4400	NASDAQ	CECO	Fri, Nov 4, 2011	6.00	6.00	5.94	6.00
4399	NASDAQ	CECO	Thu, Nov 3, 2011	6.15	6.15	6.00	6.00
4398	NASDAQ	CECO	Wed, Nov 2, 2011	6.06	6.12	6.00	6.12
4397	NASDAQ	CECO	Tue, Nov 1, 2011	6.01	6.01	5.76	5.90
4396	NASDAQ	CECO	Mon, Oct 31, 2011	6.51	6.51	5.91	6.00
4395	NASDAQ	CECO	Fri, Oct 28, 2011	6.12	6.30	6.09	6.13
4394	NASDAQ	CECO	Thu, Oct 27, 2011	6.31	6.45	6.16	6.26
4393	NASDAQ	CECO	Wed, Oct 26, 2011	6.62	6.65	6.37	6.42
4392	NASDAQ	CECO	Tue, Oct 25, 2011	5.79	6.35	5.76	6.32
4391	NASDAQ	CECO	Mon, Oct 24, 2011	5.82	6.15	5.82	6.15
4390	NASDAQ	CECO	Fri, Oct 21, 2011	5.63	5.89	5.63	5.74
4389	NASDAQ	CECO	Thu, Oct 20, 2011	5.40	5.61	5.32	5.54
4388	NASDAQ	CECO	Wed, Oct 19, 2011	5.32	5.46	5.30	5.40
4387	NASDAQ	CECO	Tue, Oct 18, 2011	5.15	5.46	5.15	5.42
4386	NASDAQ	CECO	Mon, Oct 17, 2011	5.21	5.36	5.19	5.30
4385	NASDAQ	CECO	Fri, Oct 14, 2011	5.24	5.35	5.16	5.35
4384	NASDAQ	CECO	Thu, Oct 13, 2011	5.29	5.33	5.22	5.30
4383	NASDAQ	CECO	Wed, Oct 12, 2011	5.15	5.35	5.12	5.30
4382	NASDAQ	CECO	Tue, Oct 11, 2011	5.09	5.30	5.00	5.12
4381	NASDAQ	CECO	Mon, Oct 10, 2011	5.26	5.29	5.02	5.10
4380	NASDAQ	CECO	Fri, Oct 7, 2011	5.23	5.27	5.00	5.15
4379	NASDAQ	CECO	Thu, Oct 6, 2011	5.01	5.24	5.01	5.15
4378	NASDAQ	CECO	Wed, Oct 5, 2011	5.12	5.25	5.02	5.02
4377	NASDAQ	CECO	Tue, Oct 4, 2011	5.26	5.35	4.98	5.05
4376	NASDAQ	CECO	Mon, Oct 3, 2011	5.69	5.69	5.28	5.32
4375	NASDAQ	CECO	Fri, Sep 30, 2011	5.80	5.81	5.66	5.69
4374	NASDAQ	CECO	Thu, Sep 29, 2011	5.55	5.88	5.55	5.80
4373	NASDAQ	CECO	Wed, Sep 28, 2011	5.93	6.01	5.61	5.61
4372	NASDAQ	CECO	Tue, Sep 27, 2011	5.73	5.79	5.56	5.75
4371	NASDAQ	CECO	Mon, Sep 26, 2011	5.53	5.71	5.52	5.70
4370	NASDAQ	CECO	Fri, Sep 23, 2011	5.78	5.78	5.51	5.63
4369	NASDAQ	CECO	Thu, Sep 22, 2011	5.94	5.94	5.52	5.79
4368	NASDAQ	CECO	Wed, Sep 21, 2011	5.90	6.01	5.75	5.88
4367	NASDAQ	CECO	Tue, Sep 20, 2011	5.98	6.00	5.82	5.91
4366	NASDAQ	CECO	Mon, Sep 19, 2011	5.95	5.95	5.87	5.87
4365	NASDAQ	CECO	Fri, Sep 16, 2011	6.08	6.10	5.96	6.01
4364	NASDAQ	CECO	Thu, Sep 15, 2011	6.04	6.18	5.99	5.99
4363	NASDAQ	CECO	Wed, Sep 14, 2011	5.84	6.12	5.79	5.96
4362	NASDAQ	CECO	Tue, Sep 13, 2011	5.83	5.87	5.61	5.70
4361	NASDAQ	CECO	Mon, Sep 12, 2011	5.85	6.01	5.61	5.79
4360	NASDAQ	CECO	Fri, Sep 9, 2011	5.96	6.12	5.76	5.77
4359	NASDAQ	CECO	Thu, Sep 8, 2011	5.91	6.13	5.90	6.04
4358	NASDAQ	CECO	Wed, Sep 7, 2011	5.74	5.98	5.63	5.98
4357	NASDAQ	CECO	Tue, Sep 6, 2011	5.63	5.72	5.63	5.63
4356	NASDAQ	CECO	Fri, Sep 2, 2011	5.65	6.31	5.65	5.70
4355	NASDAQ	CECO	Thu, Sep 1, 2011	6.22	6.25	6.08	6.08
4354	NASDAQ	CECO	Wed, Aug 31, 2011	6.21	6.32	6.03	6.24
4353	NASDAQ	CECO	Tue, Aug 30, 2011	6.35	6.47	6.18	6.24
4352	NASDAQ	CECO	Mon, Aug 29, 2011	6.29	6.51	6.22	6.36
4351	NASDAQ	CECO	Fri, Aug 26, 2011	6.02	6.43	6.02	6.26
4350	NASDAQ	CECO	Thu, Aug 25, 2011	5.88	6.39	5.88	6.17
4349	NASDAQ	CECO	Wed, Aug 24, 2011	5.85	5.89	5.70	5.73
4348	NASDAQ	CECO	Tue, Aug 23, 2011	5.82	6.09	5.82	5.89
4347	NASDAQ	CECO	Mon, Aug 22, 2011	5.87	5.99	5.80	5.86
4346	NASDAQ	CECO	Fri, Aug 19, 2011	5.61	6.01	5.50	5.90
4345	NASDAQ	CECO	Thu, Aug 18, 2011	5.98	6.30	5.51	5.80
4344	NASDAQ	CECO	Wed, Aug 17, 2011	6.23	6.23	6.01	6.05
4343	NASDAQ	CECO	Tue, Aug 16, 2011	6.24	6.28	6.00	6.10
4342	NASDAQ	CECO	Mon, Aug 15, 2011	6.60	6.60	6.01	6.18
4341	NASDAQ	CECO	Fri, Aug 12, 2011	6.94	6.94	6.43	6.52
4340	NASDAQ	CECO	Thu, Aug 11, 2011	5.51	6.74	5.51	6.73
4339	NASDAQ	CECO	Wed, Aug 10, 2011	5.76	5.85	5.13	5.17
4338	NASDAQ	CECO	Tue, Aug 9, 2011	6.36	6.39	5.50	5.95
4337	NASDAQ	CECO	Mon, Aug 8, 2011	6.74	6.74	6.31	6.40
4336	NASDAQ	CECO	Fri, Aug 5, 2011	7.10	7.25	6.38	6.90
4335	NASDAQ	CECO	Thu, Aug 4, 2011	7.49	7.51	7.05	7.16
4334	NASDAQ	CECO	Wed, Aug 3, 2011	7.60	7.60	7.38	7.50
4333	NASDAQ	CECO	Tue, Aug 2, 2011	7.59	7.59	7.44	7.51
4332	NASDAQ	CECO	Mon, Aug 1, 2011	7.50	7.69	7.50	7.55
4331	NASDAQ	CECO	Fri, Jul 29, 2011	7.34	7.51	7.34	7.51
4330	NASDAQ	CECO	Thu, Jul 28, 2011	7.01	7.35	6.96	7.30
4329	NASDAQ	CECO	Wed, Jul 27, 2011	7.35	7.43	7.20	7.20
4328	NASDAQ	CECO	Tue, Jul 26, 2011	7.29	7.40	7.23	7.40
4327	NASDAQ	CECO	Mon, Jul 25, 2011	7.51	7.51	7.27	7.38
4326	NASDAQ	CECO	Fri, Jul 22, 2011	7.50	7.57	7.45	7.51
4325	NASDAQ	CECO	Thu, Jul 21, 2011	7.51	7.58	7.45	7.48
4324	NASDAQ	CECO	Wed, Jul 20, 2011	7.37	7.80	7.37	7.57
4323	NASDAQ	CECO	Tue, Jul 19, 2011	6.87	8.05	6.87	7.46
4322	NASDAQ	CECO	Mon, Jul 18, 2011	6.89	7.06	6.81	6.89
4321	NASDAQ	CECO	Fri, Jul 15, 2011	7.02	7.03	6.71	6.82
4320	NASDAQ	CECO	Thu, Jul 14, 2011	7.07	7.12	7.07	7.08
4319	NASDAQ	CECO	Wed, Jul 13, 2011	7.19	7.30	7.07	7.18
4318	NASDAQ	CECO	Tue, Jul 12, 2011	6.84	7.40	6.74	7.05
4317	NASDAQ	CECO	Mon, Jul 11, 2011	6.79	6.87	6.74	6.80
4316	NASDAQ	CECO	Fri, Jul 8, 2011	6.71	6.78	6.71	6.78
4315	NASDAQ	CECO	Thu, Jul 7, 2011	6.77	6.78	6.69	6.69
4314	NASDAQ	CECO	Wed, Jul 6, 2011	6.65	6.68	6.62	6.68
4313	NASDAQ	CECO	Tue, Jul 5, 2011	6.71	6.82	6.62	6.72
4312	NASDAQ	CECO	Fri, Jul 1, 2011	6.64	6.81	6.58	6.65
4311	NASDAQ	CECO	Thu, Jun 30, 2011	6.71	6.82	6.71	6.76
4310	NASDAQ	CECO	Wed, Jun 29, 2011	6.81	6.83	6.65	6.76
4309	NASDAQ	CECO	Tue, Jun 28, 2011	6.71	6.78	6.70	6.78
4308	NASDAQ	CECO	Mon, Jun 27, 2011	6.78	6.78	6.67	6.70
4307	NASDAQ	CECO	Fri, Jun 24, 2011	6.75	6.82	6.74	6.78
4306	NASDAQ	CECO	Thu, Jun 23, 2011	6.70	6.88	6.66	6.72
4305	NASDAQ	CECO	Wed, Jun 22, 2011	6.71	7.04	6.56	6.71
4304	NASDAQ	CECO	Tue, Jun 21, 2011	6.48	6.56	6.44	6.47
4303	NASDAQ	CECO	Mon, Jun 20, 2011	6.63	6.63	6.45	6.50
4302	NASDAQ	CECO	Fri, Jun 17, 2011	6.73	6.73	6.73	6.73
4301	NASDAQ	CECO	Thu, Jun 16, 2011	6.33	6.79	6.33	6.63
4300	NASDAQ	CECO	Wed, Jun 15, 2011	6.50	7.00	6.34	6.54
4299	NASDAQ	CECO	Tue, Jun 14, 2011	6.52	6.58	6.44	6.45
4298	NASDAQ	CECO	Mon, Jun 13, 2011	6.45	6.61	6.40	6.58
4297	NASDAQ	CECO	Fri, Jun 10, 2011	6.63	6.67	6.40	6.51
4296	NASDAQ	CECO	Thu, Jun 9, 2011	6.47	6.79	6.47	6.68
4295	NASDAQ	CECO	Wed, Jun 8, 2011	6.58	6.67	6.35	6.49
4294	NASDAQ	CECO	Tue, Jun 7, 2011	6.67	6.88	6.66	6.69
4293	NASDAQ	CECO	Mon, Jun 6, 2011	6.83	6.96	6.64	6.64
4292	NASDAQ	CECO	Fri, Jun 3, 2011	6.76	6.88	6.64	6.85
4291	NASDAQ	CECO	Thu, Jun 2, 2011	6.95	6.95	6.76	6.77
4290	NASDAQ	CECO	Wed, Jun 1, 2011	6.62	7.00	6.62	6.88
4289	NASDAQ	CECO	Tue, May 31, 2011	6.29	6.65	6.28	6.56
4288	NASDAQ	CECO	Fri, May 27, 2011	6.38	6.50	6.30	6.30
4287	NASDAQ	CECO	Thu, May 26, 2011	6.37	6.46	6.37	6.42
4286	NASDAQ	CECO	Wed, May 25, 2011	6.48	6.48	6.47	6.47
4285	NASDAQ	CECO	Tue, May 24, 2011	6.53	6.65	6.48	6.51
4284	NASDAQ	CECO	Mon, May 23, 2011	6.63	6.63	6.50	6.56
4283	NASDAQ	CECO	Fri, May 20, 2011	6.59	6.69	6.59	6.61
4282	NASDAQ	CECO	Thu, May 19, 2011	6.60	6.70	6.50	6.57
4281	NASDAQ	CECO	Wed, May 18, 2011	6.63	6.65	6.53	6.65
4280	NASDAQ	CECO	Tue, May 17, 2011	6.83	6.91	6.45	6.66
4279	NASDAQ	CECO	Mon, May 16, 2011	6.60	6.85	6.60	6.78
4278	NASDAQ	CECO	Fri, May 13, 2011	6.70	6.89	6.52	6.52
4277	NASDAQ	CECO	Thu, May 12, 2011	6.54	6.65	6.45	6.50
4276	NASDAQ	CECO	Wed, May 11, 2011	6.25	7.19	6.20	6.47
4275	NASDAQ	CECO	Tue, May 10, 2011	6.08	6.12	5.99	6.01
4274	NASDAQ	CECO	Mon, May 9, 2011	6.40	6.40	6.05	6.05
4273	NASDAQ	CECO	Fri, May 6, 2011	6.07	6.59	6.01	6.44
4272	NASDAQ	CECO	Thu, May 5, 2011	6.01	6.15	5.85	6.10
4271	NASDAQ	CECO	Wed, May 4, 2011	5.66	6.11	5.64	6.01
4270	NASDAQ	CECO	Tue, May 3, 2011	5.60	5.65	5.43	5.60
4269	NASDAQ	CECO	Mon, May 2, 2011	5.65	5.65	5.56	5.61
4268	NASDAQ	CECO	Fri, Apr 29, 2011	5.67	5.85	5.57	5.65
4267	NASDAQ	CECO	Thu, Apr 28, 2011	5.53	5.88	5.45	5.64
4266	NASDAQ	CECO	Wed, Apr 27, 2011	5.61	5.64	5.49	5.50
4265	NASDAQ	CECO	Tue, Apr 26, 2011	5.62	5.68	5.60	5.60
4264	NASDAQ	CECO	Mon, Apr 25, 2011	5.71	5.67	5.62	5.62
4263	NASDAQ	CECO	Thu, Apr 21, 2011	5.76	5.76	5.56	5.73
4262	NASDAQ	CECO	Wed, Apr 20, 2011	5.69	5.86	5.69	5.77
4261	NASDAQ	CECO	Tue, Apr 19, 2011	5.59	5.72	5.62	5.71
4260	NASDAQ	CECO	Mon, Apr 18, 2011	5.57	5.59	5.53	5.56
4259	NASDAQ	CECO	Fri, Apr 15, 2011	5.62	5.62	5.52	5.59
4258	NASDAQ	CECO	Thu, Apr 14, 2011	5.78	5.78	5.64	5.66
4257	NASDAQ	CECO	Wed, Apr 13, 2011	5.76	6.00	5.75	5.75
4256	NASDAQ	CECO	Tue, Apr 12, 2011	5.66	5.86	5.67	5.79
4255	NASDAQ	CECO	Mon, Apr 11, 2011	5.76	5.76	5.62	5.67
4254	NASDAQ	CECO	Fri, Apr 8, 2011	5.85	5.85	5.60	5.76
4253	NASDAQ	CECO	Thu, Apr 7, 2011	5.92	5.95	5.85	5.87
4252	NASDAQ	CECO	Wed, Apr 6, 2011	5.85	5.96	5.84	5.96
4251	NASDAQ	CECO	Tue, Apr 5, 2011	5.84	5.97	5.83	5.87
4250	NASDAQ	CECO	Mon, Apr 4, 2011	5.81	5.83	5.81	5.82
4249	NASDAQ	CECO	Fri, Apr 1, 2011	5.80	5.85	5.79	5.84
4248	NASDAQ	CECO	Thu, Mar 31, 2011	5.82	5.91	5.82	5.90
4247	NASDAQ	CECO	Wed, Mar 30, 2011	5.79	5.97	5.75	5.80
4246	NASDAQ	CECO	Tue, Mar 29, 2011	6.14	6.05	5.81	5.82
4245	NASDAQ	CECO	Mon, Mar 28, 2011	6.15	6.24	6.06	6.17
4244	NASDAQ	CECO	Fri, Mar 25, 2011	6.04	6.19	6.00	6.12
4243	NASDAQ	CECO	Thu, Mar 24, 2011	5.63	6.00	5.54	5.99
4242	NASDAQ	CECO	Wed, Mar 23, 2011	5.69	5.84	5.69	5.80
4241	NASDAQ	CECO	Tue, Mar 22, 2011	5.63	5.83	5.49	5.82
4240	NASDAQ	CECO	Mon, Mar 21, 2011	5.82	5.84	5.50	5.66
4239	NASDAQ	CECO	Fri, Mar 18, 2011	5.82	5.83	5.78	5.83
4238	NASDAQ	CECO	Thu, Mar 17, 2011	5.98	5.98	5.81	5.84
4237	NASDAQ	CECO	Wed, Mar 16, 2011	5.80	5.82	5.80	5.82
4236	NASDAQ	CECO	Tue, Mar 15, 2011	5.67	5.84	5.67	5.84
4235	NASDAQ	CECO	Mon, Mar 14, 2011	5.79	5.79	5.70	5.75
4234	NASDAQ	CECO	Fri, Mar 11, 2011	5.80	5.80	5.63	5.72
4233	NASDAQ	CECO	Thu, Mar 10, 2011	5.72	6.00	5.71	5.80
4232	NASDAQ	CECO	Wed, Mar 9, 2011	5.68	5.76	5.65	5.75
4231	NASDAQ	CECO	Tue, Mar 8, 2011	5.75	5.85	5.67	5.67
4230	NASDAQ	CECO	Mon, Mar 7, 2011	5.90	5.92	5.70	5.70
4229	NASDAQ	CECO	Fri, Mar 4, 2011	5.91	6.06	5.86	5.86
4228	NASDAQ	CECO	Thu, Mar 3, 2011	5.74	5.95	5.70	5.95
4227	NASDAQ	CECO	Wed, Mar 2, 2011	5.88	5.88	5.71	5.75
4226	NASDAQ	CECO	Tue, Mar 1, 2011	5.90	5.95	5.87	5.87
4225	NASDAQ	CECO	Mon, Feb 28, 2011	5.87	5.93	5.85	5.89
4224	NASDAQ	CECO	Fri, Feb 25, 2011	5.79	5.90	5.76	5.90
4223	NASDAQ	CECO	Thu, Feb 24, 2011	5.91	5.93	5.75	5.75
4222	NASDAQ	CECO	Wed, Feb 23, 2011	6.15	6.15	5.92	5.95
4221	NASDAQ	CECO	Tue, Feb 22, 2011	6.21	6.24	6.02	6.18
4220	NASDAQ	CECO	Fri, Feb 18, 2011	6.25	6.25	6.11	6.23
4219	NASDAQ	CECO	Thu, Feb 17, 2011	6.15	6.27	6.10	6.25
4218	NASDAQ	CECO	Wed, Feb 16, 2011	6.21	6.29	6.13	6.21
4217	NASDAQ	CECO	Tue, Feb 15, 2011	6.23	6.29	6.18	6.18
4216	NASDAQ	CECO	Mon, Feb 14, 2011	6.16	6.45	6.11	6.20
4215	NASDAQ	CECO	Fri, Feb 11, 2011	6.24	6.25	6.01	6.08
4214	NASDAQ	CECO	Thu, Feb 10, 2011	5.94	6.22	5.94	6.11
4213	NASDAQ	CECO	Wed, Feb 9, 2011	5.71	6.16	5.71	5.95
4212	NASDAQ	CECO	Tue, Feb 8, 2011	5.65	5.73	5.59	5.71
4211	NASDAQ	CECO	Mon, Feb 7, 2011	5.40	5.58	5.40	5.55
4210	NASDAQ	CECO	Fri, Feb 4, 2011	5.35	5.47	5.34	5.40
4209	NASDAQ	CECO	Thu, Feb 3, 2011	5.35	5.50	5.33	5.41
4208	NASDAQ	CECO	Wed, Feb 2, 2011	5.51	5.60	5.32	5.41
4207	NASDAQ	CECO	Tue, Feb 1, 2011	5.50	5.59	5.47	5.50
4206	NASDAQ	CECO	Mon, Jan 31, 2011	5.62	5.62	5.42	5.55
4205	NASDAQ	CECO	Fri, Jan 28, 2011	5.68	5.73	5.64	5.65
4204	NASDAQ	CECO	Thu, Jan 27, 2011	5.64	5.73	5.50	5.73
4203	NASDAQ	CECO	Wed, Jan 26, 2011	5.80	5.83	5.58	5.65
4202	NASDAQ	CECO	Tue, Jan 25, 2011	5.86	6.09	5.82	5.82
4201	NASDAQ	CECO	Mon, Jan 24, 2011	6.15	6.19	5.80	5.89
4200	NASDAQ	CECO	Fri, Jan 21, 2011	6.25	6.25	5.95	6.08
4199	NASDAQ	CECO	Thu, Jan 20, 2011	6.19	6.24	6.16	6.20
4198	NASDAQ	CECO	Wed, Jan 19, 2011	6.17	6.19	6.03	6.19
4197	NASDAQ	CECO	Tue, Jan 18, 2011	6.25	6.27	6.16	6.17
4196	NASDAQ	CECO	Fri, Jan 14, 2011	6.31	6.40	6.23	6.32
4195	NASDAQ	CECO	Thu, Jan 13, 2011	6.19	6.36	6.15	6.24
4194	NASDAQ	CECO	Wed, Jan 12, 2011	6.11	6.20	6.10	6.20
4193	NASDAQ	CECO	Tue, Jan 11, 2011	5.93	6.12	5.81	6.10
4192	NASDAQ	CECO	Mon, Jan 10, 2011	6.05	6.06	5.80	5.98
4191	NASDAQ	CECO	Fri, Jan 7, 2011	6.42	6.53	6.20	6.21
4190	NASDAQ	CECO	Thu, Jan 6, 2011	6.20	6.41	6.20	6.39
4189	NASDAQ	CECO	Wed, Jan 5, 2011	6.04	6.21	5.96	6.19
4188	NASDAQ	CECO	Tue, Jan 4, 2011	5.81	6.27	5.81	6.12
4187	NASDAQ	CECO	Mon, Jan 3, 2011	5.96	5.96	5.80	5.84
4186	NASDAQ	CECO	Fri, Dec 31, 2010	5.86	5.96	5.79	5.96
4185	NASDAQ	CECO	Thu, Dec 30, 2010	5.76	5.85	5.74	5.85
4184	NASDAQ	CECO	Wed, Dec 29, 2010	5.72	5.80	5.49	5.79
4183	NASDAQ	CECO	Tue, Dec 28, 2010	5.70	5.86	5.70	5.75
4182	NASDAQ	CECO	Mon, Dec 27, 2010	5.41	5.72	5.39	5.67
4181	NASDAQ	CECO	Thu, Dec 23, 2010	5.35	5.52	5.35	5.46
4180	NASDAQ	CECO	Wed, Dec 22, 2010	5.24	5.41	5.21	5.38
4179	NASDAQ	CECO	Tue, Dec 21, 2010	5.38	5.51	5.24	5.25
4178	NASDAQ	CECO	Mon, Dec 20, 2010	5.39	5.39	5.32	5.32
4177	NASDAQ	CECO	Fri, Dec 17, 2010	5.47	5.57	5.30	5.36
4176	NASDAQ	CECO	Thu, Dec 16, 2010	5.47	5.58	5.35	5.48
4175	NASDAQ	CECO	Wed, Dec 15, 2010	5.53	5.53	5.45	5.45
4174	NASDAQ	CECO	Tue, Dec 14, 2010	5.63	5.63	5.48	5.53
4173	NASDAQ	CECO	Mon, Dec 13, 2010	5.55	5.63	5.50	5.53
4172	NASDAQ	CECO	Fri, Dec 10, 2010	5.51	5.60	5.46	5.51
4171	NASDAQ	CECO	Thu, Dec 9, 2010	5.30	5.54	5.30	5.54
4170	NASDAQ	CECO	Wed, Dec 8, 2010	5.41	5.43	5.28	5.30
4169	NASDAQ	CECO	Tue, Dec 7, 2010	5.36	5.45	5.36	5.44
4168	NASDAQ	CECO	Mon, Dec 6, 2010	5.39	5.43	5.31	5.41
4167	NASDAQ	CECO	Fri, Dec 3, 2010	5.43	5.50	5.38	5.48
4166	NASDAQ	CECO	Thu, Dec 2, 2010	5.35	5.52	5.34	5.48
4165	NASDAQ	CECO	Wed, Dec 1, 2010	5.41	5.45	5.20	5.43
4164	NASDAQ	CECO	Tue, Nov 30, 2010	5.33	5.54	5.33	5.49
4163	NASDAQ	CECO	Mon, Nov 29, 2010	5.43	5.50	5.40	5.42
4162	NASDAQ	CECO	Fri, Nov 26, 2010	5.40	5.50	5.40	5.44
4161	NASDAQ	CECO	Wed, Nov 24, 2010	5.44	5.64	5.44	5.49
4160	NASDAQ	CECO	Tue, Nov 23, 2010	5.21	5.57	5.21	5.48
4159	NASDAQ	CECO	Mon, Nov 22, 2010	5.35	5.50	5.12	5.49
4158	NASDAQ	CECO	Fri, Nov 19, 2010	5.50	5.54	5.35	5.41
4157	NASDAQ	CECO	Thu, Nov 18, 2010	5.38	5.55	5.23	5.48
4156	NASDAQ	CECO	Wed, Nov 17, 2010	5.19	5.33	5.16	5.23
4155	NASDAQ	CECO	Tue, Nov 16, 2010	5.33	5.54	5.21	5.38
4154	NASDAQ	CECO	Mon, Nov 15, 2010	5.49	5.56	5.27	5.35
4153	NASDAQ	CECO	Fri, Nov 12, 2010	5.12	5.30	5.04	5.29
4152	NASDAQ	CECO	Thu, Nov 11, 2010	5.57	5.64	5.12	5.31
4151	NASDAQ	CECO	Wed, Nov 10, 2010	5.69	5.70	5.32	5.41
4150	NASDAQ	CECO	Tue, Nov 9, 2010	5.30	5.66	5.30	5.54
4149	NASDAQ	CECO	Mon, Nov 8, 2010	5.31	5.34	5.26	5.30
4148	NASDAQ	CECO	Fri, Nov 5, 2010	5.21	5.35	5.21	5.35
4147	NASDAQ	CECO	Thu, Nov 4, 2010	5.29	5.35	5.18	5.20
4146	NASDAQ	CECO	Wed, Nov 3, 2010	5.60	5.60	5.19	5.33
4145	NASDAQ	CECO	Tue, Nov 2, 2010	5.20	5.49	5.20	5.46
4144	NASDAQ	CECO	Mon, Nov 1, 2010	5.39	5.49	5.12	5.16
4143	NASDAQ	CECO	Fri, Oct 29, 2010	5.51	5.68	5.29	5.47
4142	NASDAQ	CECO	Thu, Oct 28, 2010	5.69	5.69	5.29	5.56
4141	NASDAQ	CECO	Wed, Oct 27, 2010	5.73	5.73	5.62	5.65
4140	NASDAQ	CECO	Tue, Oct 26, 2010	5.84	5.91	5.66	5.78
4139	NASDAQ	CECO	Mon, Oct 25, 2010	5.64	5.88	5.56	5.81
4138	NASDAQ	CECO	Fri, Oct 22, 2010	5.70	5.70	5.52	5.64
4137	NASDAQ	CECO	Thu, Oct 21, 2010	5.89	5.89	5.55	5.64
4136	NASDAQ	CECO	Wed, Oct 20, 2010	5.74	6.04	5.70	5.88
4135	NASDAQ	CECO	Tue, Oct 19, 2010	5.51	5.76	5.51	5.74
4134	NASDAQ	CECO	Mon, Oct 18, 2010	5.83	5.86	5.62	5.66
4133	NASDAQ	CECO	Fri, Oct 15, 2010	5.88	5.93	5.85	5.86
4132	NASDAQ	CECO	Thu, Oct 14, 2010	5.97	6.03	5.89	5.92
4131	NASDAQ	CECO	Wed, Oct 13, 2010	5.94	6.15	5.94	6.01
4130	NASDAQ	CECO	Tue, Oct 12, 2010	6.03	6.05	5.89	5.97
4129	NASDAQ	CECO	Mon, Oct 11, 2010	6.01	6.06	5.96	6.05
4128	NASDAQ	CECO	Fri, Oct 8, 2010	6.23	6.30	6.00	6.01
4127	NASDAQ	CECO	Thu, Oct 7, 2010	6.21	6.30	6.19	6.28
4126	NASDAQ	CECO	Wed, Oct 6, 2010	5.94	6.30	5.94	6.19
4125	NASDAQ	CECO	Tue, Oct 5, 2010	5.87	6.00	5.84	5.92
4124	NASDAQ	CECO	Mon, Oct 4, 2010	5.93	6.00	5.80	5.80
4123	NASDAQ	CECO	Fri, Oct 1, 2010	5.98	6.00	5.88	5.97
4122	NASDAQ	CECO	Thu, Sep 30, 2010	5.67	5.99	5.66	5.97
4121	NASDAQ	CECO	Wed, Sep 29, 2010	5.87	5.95	5.87	5.93
4120	NASDAQ	CECO	Tue, Sep 28, 2010	5.99	5.99	5.85	5.97
4119	NASDAQ	CECO	Mon, Sep 27, 2010	5.98	6.00	5.83	6.00
4118	NASDAQ	CECO	Fri, Sep 24, 2010	6.00	6.00	5.93	6.00
4117	NASDAQ	CECO	Thu, Sep 23, 2010	5.87	6.00	5.80	5.99
4116	NASDAQ	CECO	Wed, Sep 22, 2010	5.77	5.88	5.62	5.86
4115	NASDAQ	CECO	Tue, Sep 21, 2010	5.70	5.95	5.62	5.85
4114	NASDAQ	CECO	Mon, Sep 20, 2010	5.83	5.84	5.68	5.80
4113	NASDAQ	CECO	Fri, Sep 17, 2010	5.59	5.86	5.59	5.83
4112	NASDAQ	CECO	Thu, Sep 16, 2010	5.69	5.76	5.55	5.59
4111	NASDAQ	CECO	Wed, Sep 15, 2010	5.87	5.87	5.65	5.68
4110	NASDAQ	CECO	Tue, Sep 14, 2010	5.85	5.85	5.71	5.71
4109	NASDAQ	CECO	Mon, Sep 13, 2010	5.82	5.82	5.53	5.72
4108	NASDAQ	CECO	Fri, Sep 10, 2010	5.74	5.84	5.73	5.81
4107	NASDAQ	CECO	Thu, Sep 9, 2010	5.56	5.81	5.50	5.70
4106	NASDAQ	CECO	Wed, Sep 8, 2010	5.58	5.61	5.50	5.58
4105	NASDAQ	CECO	Tue, Sep 7, 2010	5.57	5.65	5.54	5.64
4104	NASDAQ	CECO	Fri, Sep 3, 2010	5.96	5.96	5.67	5.67
4103	NASDAQ	CECO	Thu, Sep 2, 2010	5.78	5.80	5.75	5.80
4102	NASDAQ	CECO	Wed, Sep 1, 2010	5.69	5.90	5.69	5.84
4101	NASDAQ	CECO	Tue, Aug 31, 2010	5.81	5.81	5.69	5.80
4100	NASDAQ	CECO	Mon, Aug 30, 2010	5.85	5.85	5.73	5.81
4099	NASDAQ	CECO	Fri, Aug 27, 2010	5.76	5.89	5.55	5.88
4098	NASDAQ	CECO	Thu, Aug 26, 2010	5.51	5.78	5.47	5.70
4097	NASDAQ	CECO	Wed, Aug 25, 2010	5.69	5.69	5.37	5.50
4096	NASDAQ	CECO	Tue, Aug 24, 2010	5.62	5.75	5.62	5.69
4095	NASDAQ	CECO	Mon, Aug 23, 2010	5.70	5.86	5.70	5.75
4094	NASDAQ	CECO	Fri, Aug 20, 2010	5.76	5.76	5.51	5.70
4093	NASDAQ	CECO	Thu, Aug 19, 2010	5.88	5.88	5.70	5.78
4092	NASDAQ	CECO	Wed, Aug 18, 2010	5.81	5.99	5.76	5.85
4091	NASDAQ	CECO	Tue, Aug 17, 2010	5.47	5.93	5.41	5.87
4090	NASDAQ	CECO	Mon, Aug 16, 2010	5.13	5.62	5.12	5.53
4089	NASDAQ	CECO	Fri, Aug 13, 2010	5.94	6.03	5.90	5.95
4088	NASDAQ	CECO	Thu, Aug 12, 2010	5.83	5.99	5.28	5.95
4087	NASDAQ	CECO	Wed, Aug 11, 2010	5.89	5.89	5.61	5.67
4086	NASDAQ	CECO	Tue, Aug 10, 2010	6.07	6.07	5.68	5.96
4085	NASDAQ	CECO	Mon, Aug 9, 2010	6.08	6.09	5.71	6.03
4084	NASDAQ	CECO	Fri, Aug 6, 2010	6.01	6.09	5.98	6.05
4083	NASDAQ	CECO	Thu, Aug 5, 2010	6.19	6.19	5.89	6.00
4082	NASDAQ	CECO	Wed, Aug 4, 2010	6.16	6.16	5.83	6.11
4081	NASDAQ	CECO	Tue, Aug 3, 2010	6.05	6.15	5.85	6.09
4080	NASDAQ	CECO	Mon, Aug 2, 2010	5.95	6.04	5.81	6.01
4079	NASDAQ	CECO	Fri, Jul 30, 2010	6.00	6.07	5.95	5.95
4078	NASDAQ	CECO	Thu, Jul 29, 2010	6.07	6.07	5.91	6.02
4077	NASDAQ	CECO	Wed, Jul 28, 2010	6.07	6.19	5.95	6.04
4076	NASDAQ	CECO	Tue, Jul 27, 2010	5.90	6.05	5.71	6.05
4075	NASDAQ	CECO	Mon, Jul 26, 2010	5.57	5.90	5.50	5.90
4074	NASDAQ	CECO	Fri, Jul 23, 2010	5.56	5.62	5.25	5.62
4073	NASDAQ	CECO	Thu, Jul 22, 2010	5.60	5.90	5.50	5.61
4072	NASDAQ	CECO	Wed, Jul 21, 2010	5.68	5.80	5.50	5.69
4071	NASDAQ	CECO	Tue, Jul 20, 2010	5.36	5.63	5.35	5.58
4070	NASDAQ	CECO	Mon, Jul 19, 2010	5.33	5.48	5.23	5.41
4069	NASDAQ	CECO	Fri, Jul 16, 2010	5.17	5.29	5.16	5.23
4068	NASDAQ	CECO	Thu, Jul 15, 2010	5.10	5.38	5.10	5.25
4067	NASDAQ	CECO	Wed, Jul 14, 2010	5.07	5.10	5.00	5.10
4066	NASDAQ	CECO	Tue, Jul 13, 2010	5.09	5.10	5.03	5.03
4065	NASDAQ	CECO	Mon, Jul 12, 2010	5.10	5.10	5.09	5.09
4064	NASDAQ	CECO	Fri, Jul 9, 2010	5.04	5.15	5.04	5.11
4063	NASDAQ	CECO	Thu, Jul 8, 2010	5.02	5.08	5.01	5.07
4062	NASDAQ	CECO	Wed, Jul 7, 2010	4.91	5.10	4.80	4.95
4061	NASDAQ	CECO	Tue, Jul 6, 2010	4.64	4.93	4.64	4.89
4060	NASDAQ	CECO	Fri, Jul 2, 2010	4.72	4.76	4.59	4.68
4059	NASDAQ	CECO	Thu, Jul 1, 2010	4.78	4.78	4.50	4.73
4058	NASDAQ	CECO	Wed, Jun 30, 2010	4.71	4.78	4.64	4.70
4057	NASDAQ	CECO	Tue, Jun 29, 2010	4.91	4.95	4.64	4.64
4056	NASDAQ	CECO	Mon, Jun 28, 2010	5.00	5.17	4.90	5.05
4055	NASDAQ	CECO	Fri, Jun 25, 2010	4.80	5.02	4.77	4.95
4054	NASDAQ	CECO	Thu, Jun 24, 2010	4.85	5.17	4.58	4.80
4053	NASDAQ	CECO	Wed, Jun 23, 2010	4.85	4.98	4.59	4.76
4052	NASDAQ	CECO	Tue, Jun 22, 2010	5.01	5.10	4.81	4.84
4051	NASDAQ	CECO	Mon, Jun 21, 2010	5.06	5.12	4.94	5.06
4050	NASDAQ	CECO	Fri, Jun 18, 2010	4.89	5.10	4.89	5.10
4049	NASDAQ	CECO	Thu, Jun 17, 2010	5.07	5.09	4.96	5.01
4048	NASDAQ	CECO	Wed, Jun 16, 2010	5.04	5.18	4.92	5.03
4047	NASDAQ	CECO	Tue, Jun 15, 2010	5.00	5.07	4.97	5.02
4046	NASDAQ	CECO	Mon, Jun 14, 2010	4.74	4.95	4.54	4.90
4045	NASDAQ	CECO	Fri, Jun 11, 2010	4.77	4.77	4.66	4.74
4044	NASDAQ	CECO	Thu, Jun 10, 2010	4.65	4.81	4.64	4.77
4043	NASDAQ	CECO	Wed, Jun 9, 2010	4.50	4.79	4.43	4.60
4042	NASDAQ	CECO	Tue, Jun 8, 2010	4.72	4.72	4.50	4.50
4041	NASDAQ	CECO	Mon, Jun 7, 2010	4.81	4.84	4.71	4.77
4040	NASDAQ	CECO	Fri, Jun 4, 2010	4.97	4.99	4.82	4.83
4039	NASDAQ	CECO	Thu, Jun 3, 2010	5.06	5.06	4.95	5.03
4038	NASDAQ	CECO	Wed, Jun 2, 2010	5.25	5.40	4.94	5.04
4037	NASDAQ	CECO	Tue, Jun 1, 2010	5.05	5.17	5.05	5.17
4036	NASDAQ	CECO	Fri, May 28, 2010	5.00	5.12	4.91	5.12
4035	NASDAQ	CECO	Thu, May 27, 2010	4.99	5.10	4.98	5.00
4034	NASDAQ	CECO	Wed, May 26, 2010	4.98	5.29	4.91	5.00
4033	NASDAQ	CECO	Tue, May 25, 2010	4.47	4.84	4.31	4.83
4032	NASDAQ	CECO	Mon, May 24, 2010	5.14	5.29	4.70	4.74
4031	NASDAQ	CECO	Fri, May 21, 2010	4.84	5.25	4.84	5.12
4030	NASDAQ	CECO	Thu, May 20, 2010	5.00	5.06	4.74	4.86
4029	NASDAQ	CECO	Wed, May 19, 2010	5.30	5.30	5.02	5.06
4028	NASDAQ	CECO	Tue, May 18, 2010	4.92	5.36	4.80	5.17
4027	NASDAQ	CECO	Mon, May 17, 2010	5.12	5.12	4.60	4.89
4026	NASDAQ	CECO	Fri, May 14, 2010	5.19	5.19	4.96	5.07
4025	NASDAQ	CECO	Thu, May 13, 2010	5.16	5.30	5.13	5.29
4024	NASDAQ	CECO	Wed, May 12, 2010	5.01	5.25	5.00	5.25
4023	NASDAQ	CECO	Tue, May 11, 2010	5.32	5.32	4.85	5.08
4022	NASDAQ	CECO	Mon, May 10, 2010	5.64	5.64	5.01	5.35
4021	NASDAQ	CECO	Fri, May 7, 2010	5.30	5.36	5.11	5.21
4020	NASDAQ	CECO	Thu, May 6, 2010	5.39	5.51	4.97	5.24
4019	NASDAQ	CECO	Wed, May 5, 2010	5.25	5.37	5.24	5.36
4018	NASDAQ	CECO	Tue, May 4, 2010	5.20	5.35	5.11	5.31
4017	NASDAQ	CECO	Mon, May 3, 2010	5.28	5.39	5.10	5.37
4016	NASDAQ	CECO	Fri, Apr 30, 2010	5.29	5.39	5.23	5.32
4015	NASDAQ	CECO	Thu, Apr 29, 2010	5.15	5.28	5.09	5.26
4014	NASDAQ	CECO	Wed, Apr 28, 2010	5.07	5.22	4.99	5.18
4013	NASDAQ	CECO	Tue, Apr 27, 2010	4.88	5.11	4.84	4.95
4012	NASDAQ	CECO	Mon, Apr 26, 2010	5.33	5.38	4.83	5.01
4011	NASDAQ	CECO	Fri, Apr 23, 2010	5.46	5.54	5.40	5.45
4010	NASDAQ	CECO	Thu, Apr 22, 2010	5.42	5.53	5.42	5.53
4009	NASDAQ	CECO	Wed, Apr 21, 2010	5.37	5.58	5.29	5.58
4008	NASDAQ	CECO	Tue, Apr 20, 2010	5.48	5.57	5.38	5.45
4007	NASDAQ	CECO	Mon, Apr 19, 2010	5.40	5.64	5.29	5.46
4006	NASDAQ	CECO	Fri, Apr 16, 2010	5.38	5.44	5.25	5.31
4005	NASDAQ	CECO	Thu, Apr 15, 2010	5.32	5.49	5.32	5.35
4004	NASDAQ	CECO	Wed, Apr 14, 2010	5.30	5.49	4.81	5.27
4003	NASDAQ	CECO	Tue, Apr 13, 2010	4.61	5.49	4.61	5.44
4002	NASDAQ	CECO	Mon, Apr 12, 2010	4.70	4.74	4.60	4.66
4001	NASDAQ	CECO	Fri, Apr 9, 2010	4.21	4.70	4.05	4.70
4000	NASDAQ	CECO	Thu, Apr 8, 2010	4.25	4.34	4.07	4.21
3999	NASDAQ	CECO	Wed, Apr 7, 2010	3.85	4.57	3.85	4.32
3998	NASDAQ	CECO	Tue, Apr 6, 2010	3.88	3.88	3.60	3.82
3997	NASDAQ	CECO	Mon, Apr 5, 2010	3.87	3.94	3.86	3.89
3996	NASDAQ	CECO	Thu, Apr 1, 2010	3.64	3.90	3.63	3.85
3995	NASDAQ	CECO	Wed, Mar 31, 2010	3.60	3.64	3.46	3.57
3994	NASDAQ	CECO	Tue, Mar 30, 2010	3.51	3.61	3.45	3.61
3993	NASDAQ	CECO	Mon, Mar 29, 2010	3.50	3.55	3.33	3.55
3992	NASDAQ	CECO	Fri, Mar 26, 2010	3.52	3.60	3.45	3.54
3991	NASDAQ	CECO	Thu, Mar 25, 2010	3.50	3.50	3.36	3.44
3990	NASDAQ	CECO	Wed, Mar 24, 2010	3.41	3.53	3.39	3.53
3989	NASDAQ	CECO	Tue, Mar 23, 2010	3.52	3.54	3.40	3.43
3988	NASDAQ	CECO	Mon, Mar 22, 2010	3.58	3.58	3.41	3.46
3987	NASDAQ	CECO	Fri, Mar 19, 2010	3.79	3.79	3.36	3.61
3986	NASDAQ	CECO	Thu, Mar 18, 2010	3.52	3.65	3.46	3.49
3985	NASDAQ	CECO	Wed, Mar 17, 2010	3.46	3.56	3.46	3.56
3984	NASDAQ	CECO	Tue, Mar 16, 2010	3.54	3.55	3.50	3.52
3983	NASDAQ	CECO	Mon, Mar 15, 2010	3.49	3.52	3.45	3.51
3982	NASDAQ	CECO	Fri, Mar 12, 2010	3.35	3.62	3.35	3.47
3981	NASDAQ	CECO	Thu, Mar 11, 2010	3.56	3.59	3.31	3.31
3980	NASDAQ	CECO	Wed, Mar 10, 2010	3.63	3.67	3.61	3.62
3979	NASDAQ	CECO	Tue, Mar 9, 2010	3.66	3.74	3.60	3.67
3978	NASDAQ	CECO	Mon, Mar 8, 2010	3.61	3.74	3.61	3.70
3977	NASDAQ	CECO	Fri, Mar 5, 2010	3.61	3.77	3.61	3.66
3976	NASDAQ	CECO	Thu, Mar 4, 2010	3.56	3.66	3.56	3.61
3975	NASDAQ	CECO	Wed, Mar 3, 2010	3.66	3.66	3.37	3.61
3974	NASDAQ	CECO	Tue, Mar 2, 2010	3.71	3.71	3.55	3.55
3973	NASDAQ	CECO	Mon, Mar 1, 2010	3.66	3.74	3.66	3.73
3972	NASDAQ	CECO	Fri, Feb 26, 2010	3.67	3.77	3.67	3.69
3971	NASDAQ	CECO	Thu, Feb 25, 2010	3.79	3.79	3.68	3.79
3970	NASDAQ	CECO	Wed, Feb 24, 2010	3.85	3.90	3.71	3.90
3969	NASDAQ	CECO	Tue, Feb 23, 2010	3.86	3.89	3.75	3.86
3968	NASDAQ	CECO	Mon, Feb 22, 2010	3.89	3.96	3.85	3.96
3967	NASDAQ	CECO	Fri, Feb 19, 2010	3.83	3.92	3.81	3.83
3966	NASDAQ	CECO	Thu, Feb 18, 2010	3.83	3.96	3.81	3.91
3965	NASDAQ	CECO	Wed, Feb 17, 2010	3.94	4.04	3.82	3.82
3964	NASDAQ	CECO	Tue, Feb 16, 2010	3.78	3.99	3.78	3.98
3963	NASDAQ	CECO	Fri, Feb 12, 2010	3.75	3.79	3.74	3.78
3962	NASDAQ	CECO	Thu, Feb 11, 2010	3.74	3.79	3.70	3.76
3961	NASDAQ	CECO	Wed, Feb 10, 2010	3.75	3.76	3.66	3.73
3960	NASDAQ	CECO	Tue, Feb 9, 2010	3.75	3.76	3.63	3.75
3959	NASDAQ	CECO	Mon, Feb 8, 2010	3.75	3.80	3.74	3.79
3958	NASDAQ	CECO	Fri, Feb 5, 2010	3.66	3.73	3.61	3.73
3957	NASDAQ	CECO	Thu, Feb 4, 2010	3.79	3.80	3.66	3.66
3956	NASDAQ	CECO	Wed, Feb 3, 2010	3.72	3.79	3.67	3.73
3955	NASDAQ	CECO	Tue, Feb 2, 2010	3.79	3.79	3.69	3.72
3954	NASDAQ	CECO	Mon, Feb 1, 2010	3.73	3.90	3.70	3.82
3953	NASDAQ	CECO	Fri, Jan 29, 2010	3.91	3.91	3.60	3.75
3952	NASDAQ	CECO	Thu, Jan 28, 2010	3.70	3.86	3.53	3.86
3951	NASDAQ	CECO	Wed, Jan 27, 2010	3.76	3.76	3.52	3.64
3950	NASDAQ	CECO	Tue, Jan 26, 2010	3.80	3.84	3.76	3.80
3949	NASDAQ	CECO	Mon, Jan 25, 2010	3.82	3.85	3.80	3.80
3948	NASDAQ	CECO	Fri, Jan 22, 2010	3.90	3.90	3.77	3.77
3947	NASDAQ	CECO	Thu, Jan 21, 2010	3.91	3.91	3.85	3.88
3946	NASDAQ	CECO	Wed, Jan 20, 2010	3.86	3.99	3.85	3.91
3945	NASDAQ	CECO	Tue, Jan 19, 2010	3.94	3.94	3.76	3.91
3944	NASDAQ	CECO	Fri, Jan 15, 2010	3.99	4.03	3.94	3.95
3943	NASDAQ	CECO	Thu, Jan 14, 2010	4.04	4.06	3.99	4.04
3942	NASDAQ	CECO	Wed, Jan 13, 2010	3.99	4.13	3.99	4.07
3941	NASDAQ	CECO	Tue, Jan 12, 2010	3.95	4.14	3.95	4.06
3940	NASDAQ	CECO	Mon, Jan 11, 2010	4.15	4.15	3.98	3.98
3939	NASDAQ	CECO	Fri, Jan 8, 2010	4.15	4.15	4.03	4.15
3938	NASDAQ	CECO	Thu, Jan 7, 2010	4.05	4.16	3.94	4.16
3937	NASDAQ	CECO	Wed, Jan 6, 2010	4.05	4.09	3.96	3.96
3936	NASDAQ	CECO	Tue, Jan 5, 2010	4.00	4.03	3.94	3.97
3935	NASDAQ	CECO	Mon, Jan 4, 2010	3.98	4.10	3.95	4.00
3934	NASDAQ	CECO	Thu, Dec 31, 2009	4.01	4.07	3.91	3.95
3933	NASDAQ	CECO	Wed, Dec 30, 2009	4.06	4.11	4.05	4.11
3932	NASDAQ	CECO	Tue, Dec 29, 2009	4.01	4.15	3.93	4.10
3931	NASDAQ	CECO	Mon, Dec 28, 2009	3.95	4.13	3.91	4.13
3930	NASDAQ	CECO	Thu, Dec 24, 2009	3.99	3.99	3.96	3.96
3929	NASDAQ	CECO	Wed, Dec 23, 2009	4.02	4.02	3.95	4.01
3928	NASDAQ	CECO	Tue, Dec 22, 2009	4.09	4.10	4.00	4.06
3927	NASDAQ	CECO	Mon, Dec 21, 2009	3.99	4.12	3.91	4.06
3926	NASDAQ	CECO	Fri, Dec 18, 2009	4.15	4.15	3.91	3.91
3925	NASDAQ	CECO	Thu, Dec 17, 2009	4.14	4.14	3.91	3.91
3924	NASDAQ	CECO	Wed, Dec 16, 2009	4.05	4.15	4.05	4.15
3923	NASDAQ	CECO	Tue, Dec 15, 2009	4.03	4.11	3.91	3.92
3922	NASDAQ	CECO	Mon, Dec 14, 2009	4.05	4.14	4.05	4.14
3921	NASDAQ	CECO	Fri, Dec 11, 2009	4.14	4.14	4.04	4.05
3920	NASDAQ	CECO	Thu, Dec 10, 2009	4.21	4.21	4.12	4.12
3919	NASDAQ	CECO	Wed, Dec 9, 2009	4.19	4.25	4.12	4.16
3918	NASDAQ	CECO	Tue, Dec 8, 2009	4.15	4.17	4.01	4.13
3917	NASDAQ	CECO	Mon, Dec 7, 2009	4.13	4.13	4.07	4.07
3916	NASDAQ	CECO	Fri, Dec 4, 2009	4.09	4.11	4.03	4.09
3915	NASDAQ	CECO	Thu, Dec 3, 2009	4.09	4.20	4.07	4.10
3914	NASDAQ	CECO	Wed, Dec 2, 2009	4.25	4.25	4.05	4.09
3913	NASDAQ	CECO	Tue, Dec 1, 2009	4.19	4.20	4.06	4.15
3912	NASDAQ	CECO	Mon, Nov 30, 2009	4.10	4.25	4.05	4.15
3911	NASDAQ	CECO	Fri, Nov 27, 2009	4.24	4.25	3.80	4.10
3910	NASDAQ	CECO	Wed, Nov 25, 2009	3.73	3.77	3.73	3.73
3909	NASDAQ	CECO	Tue, Nov 24, 2009	3.67	3.79	3.61	3.75
3908	NASDAQ	CECO	Mon, Nov 23, 2009	3.66	3.81	3.61	3.73
3907	NASDAQ	CECO	Fri, Nov 20, 2009	3.88	3.90	3.66	3.66
3906	NASDAQ	CECO	Thu, Nov 19, 2009	3.70	3.77	3.70	3.76
3905	NASDAQ	CECO	Wed, Nov 18, 2009	3.76	3.85	3.76	3.80
3904	NASDAQ	CECO	Tue, Nov 17, 2009	3.75	3.85	3.61	3.84
3903	NASDAQ	CECO	Mon, Nov 16, 2009	3.73	4.08	3.70	3.85
3902	NASDAQ	CECO	Fri, Nov 13, 2009	3.72	3.79	3.60	3.66
3901	NASDAQ	CECO	Thu, Nov 12, 2009	3.81	4.00	3.79	3.80
3900	NASDAQ	CECO	Wed, Nov 11, 2009	4.00	4.04	3.81	3.87
3899	NASDAQ	CECO	Tue, Nov 10, 2009	3.92	3.93	3.71	3.72
3898	NASDAQ	CECO	Mon, Nov 9, 2009	3.51	4.05	3.51	3.92
3897	NASDAQ	CECO	Fri, Nov 6, 2009	3.63	4.04	3.40	4.03
3896	NASDAQ	CECO	Thu, Nov 5, 2009	3.42	3.65	3.41	3.64
3895	NASDAQ	CECO	Wed, Nov 4, 2009	3.35	3.60	3.10	3.47
3894	NASDAQ	CECO	Tue, Nov 3, 2009	3.64	3.64	3.37	3.39
3893	NASDAQ	CECO	Mon, Nov 2, 2009	3.81	3.83	3.66	3.83
3892	NASDAQ	CECO	Fri, Oct 30, 2009	3.86	4.05	3.69	3.73
3891	NASDAQ	CECO	Thu, Oct 29, 2009	3.79	3.91	3.79	3.84
3890	NASDAQ	CECO	Wed, Oct 28, 2009	3.90	3.97	3.79	3.79
3889	NASDAQ	CECO	Tue, Oct 27, 2009	4.03	4.03	3.87	3.95
3888	NASDAQ	CECO	Mon, Oct 26, 2009	4.00	4.05	3.92	3.96
3887	NASDAQ	CECO	Fri, Oct 23, 2009	3.99	4.04	3.99	3.99
3886	NASDAQ	CECO	Thu, Oct 22, 2009	3.95	4.09	3.84	3.90
3885	NASDAQ	CECO	Wed, Oct 21, 2009	4.12	4.20	3.89	3.96
3884	NASDAQ	CECO	Tue, Oct 20, 2009	4.15	4.25	4.15	4.17
3883	NASDAQ	CECO	Mon, Oct 19, 2009	3.99	4.25	3.99	4.24
3882	NASDAQ	CECO	Fri, Oct 16, 2009	4.15	4.15	3.92	4.11
3881	NASDAQ	CECO	Thu, Oct 15, 2009	4.14	4.22	4.10	4.21
3880	NASDAQ	CECO	Wed, Oct 14, 2009	4.17	4.20	4.00	4.17
3879	NASDAQ	CECO	Tue, Oct 13, 2009	3.99	4.07	3.98	4.06
3878	NASDAQ	CECO	Mon, Oct 12, 2009	4.19	4.20	3.97	4.00
3877	NASDAQ	CECO	Fri, Oct 9, 2009	4.15	4.17	4.12	4.12
3876	NASDAQ	CECO	Thu, Oct 8, 2009	4.00	4.17	3.96	4.17
3875	NASDAQ	CECO	Wed, Oct 7, 2009	3.97	3.98	3.90	3.98
3874	NASDAQ	CECO	Tue, Oct 6, 2009	3.92	3.95	3.87	3.93
3873	NASDAQ	CECO	Mon, Oct 5, 2009	3.98	4.05	3.86	3.91
3872	NASDAQ	CECO	Fri, Oct 2, 2009	3.81	4.16	3.81	3.92
3871	NASDAQ	CECO	Thu, Oct 1, 2009	3.79	3.97	3.65	3.89
3870	NASDAQ	CECO	Wed, Sep 30, 2009	3.98	4.17	3.75	3.75
3869	NASDAQ	CECO	Tue, Sep 29, 2009	3.98	4.12	3.94	3.96
3868	NASDAQ	CECO	Mon, Sep 28, 2009	3.92	4.05	3.77	3.98
3867	NASDAQ	CECO	Fri, Sep 25, 2009	4.06	4.06	3.80	3.93
3866	NASDAQ	CECO	Thu, Sep 24, 2009	4.17	4.17	4.00	4.09
3865	NASDAQ	CECO	Wed, Sep 23, 2009	4.20	4.21	4.15	4.19
3864	NASDAQ	CECO	Tue, Sep 22, 2009	4.18	4.21	4.13	4.21
3863	NASDAQ	CECO	Mon, Sep 21, 2009	4.11	4.19	4.02	4.19
3862	NASDAQ	CECO	Fri, Sep 18, 2009	4.05	4.15	3.78	4.15
3861	NASDAQ	CECO	Thu, Sep 17, 2009	3.65	4.04	3.65	4.01
3860	NASDAQ	CECO	Wed, Sep 16, 2009	3.40	3.64	3.38	3.61
3859	NASDAQ	CECO	Tue, Sep 15, 2009	3.41	3.41	3.35	3.39
3858	NASDAQ	CECO	Mon, Sep 14, 2009	3.43	3.43	3.05	3.37
3857	NASDAQ	CECO	Fri, Sep 11, 2009	3.37	3.41	3.30	3.41
3856	NASDAQ	CECO	Thu, Sep 10, 2009	3.32	3.43	3.32	3.37
3855	NASDAQ	CECO	Wed, Sep 9, 2009	3.33	3.38	3.30	3.35
3854	NASDAQ	CECO	Tue, Sep 8, 2009	3.35	3.35	3.20	3.27
3853	NASDAQ	CECO	Fri, Sep 4, 2009	3.24	3.28	3.09	3.23
3852	NASDAQ	CECO	Thu, Sep 3, 2009	3.17	3.28	3.05	3.22
3851	NASDAQ	CECO	Wed, Sep 2, 2009	3.24	3.32	3.17	3.23
3850	NASDAQ	CECO	Tue, Sep 1, 2009	3.34	3.34	3.17	3.25
3849	NASDAQ	CECO	Mon, Aug 31, 2009	3.29	3.35	3.23	3.32
3848	NASDAQ	CECO	Fri, Aug 28, 2009	3.26	3.44	3.26	3.35
3847	NASDAQ	CECO	Thu, Aug 27, 2009	3.42	3.43	3.26	3.42
3846	NASDAQ	CECO	Wed, Aug 26, 2009	3.46	3.46	3.40	3.43
3845	NASDAQ	CECO	Tue, Aug 25, 2009	3.30	3.44	3.30	3.39
3844	NASDAQ	CECO	Mon, Aug 24, 2009	3.35	3.44	3.20	3.30
3843	NASDAQ	CECO	Fri, Aug 21, 2009	3.40	3.40	3.35	3.35
3842	NASDAQ	CECO	Thu, Aug 20, 2009	3.44	3.44	3.35	3.41
3841	NASDAQ	CECO	Wed, Aug 19, 2009	3.25	3.43	3.20	3.43
3840	NASDAQ	CECO	Tue, Aug 18, 2009	3.10	3.25	2.96	3.22
3839	NASDAQ	CECO	Mon, Aug 17, 2009	3.15	3.15	2.99	3.06
3838	NASDAQ	CECO	Fri, Aug 14, 2009	3.21	3.21	3.07	3.17
3837	NASDAQ	CECO	Thu, Aug 13, 2009	2.84	3.20	2.82	3.06
3836	NASDAQ	CECO	Wed, Aug 12, 2009	2.75	2.75	2.66	2.68
3835	NASDAQ	CECO	Tue, Aug 11, 2009	2.73	2.76	2.63	2.75
3834	NASDAQ	CECO	Mon, Aug 10, 2009	2.95	2.95	2.73	2.74
3833	NASDAQ	CECO	Fri, Aug 7, 2009	3.25	3.25	2.92	2.96
3832	NASDAQ	CECO	Thu, Aug 6, 2009	3.67	3.69	2.96	3.25
3831	NASDAQ	CECO	Wed, Aug 5, 2009	3.70	3.80	3.68	3.70
3830	NASDAQ	CECO	Tue, Aug 4, 2009	3.86	3.86	3.67	3.68
3829	NASDAQ	CECO	Mon, Aug 3, 2009	3.85	3.87	3.81	3.81
3828	NASDAQ	CECO	Fri, Jul 31, 2009	3.87	3.87	3.72	3.72
3827	NASDAQ	CECO	Thu, Jul 30, 2009	3.75	3.84	3.71	3.81
3826	NASDAQ	CECO	Wed, Jul 29, 2009	3.70	3.79	3.65	3.71
3825	NASDAQ	CECO	Tue, Jul 28, 2009	3.60	3.83	3.59	3.80
3824	NASDAQ	CECO	Mon, Jul 27, 2009	3.40	3.73	3.40	3.68
3823	NASDAQ	CECO	Fri, Jul 24, 2009	3.95	4.00	3.55	3.78
3822	NASDAQ	CECO	Thu, Jul 23, 2009	3.88	4.04	3.80	3.97
3821	NASDAQ	CECO	Wed, Jul 22, 2009	3.85	3.90	3.83	3.88
3820	NASDAQ	CECO	Tue, Jul 21, 2009	3.94	3.94	3.79	3.85
3819	NASDAQ	CECO	Mon, Jul 20, 2009	4.04	4.04	3.91	3.92
3818	NASDAQ	CECO	Fri, Jul 17, 2009	4.06	4.20	3.93	3.96
3817	NASDAQ	CECO	Thu, Jul 16, 2009	4.04	4.13	3.78	4.00
3816	NASDAQ	CECO	Wed, Jul 15, 2009	4.09	4.17	4.01	4.09
3815	NASDAQ	CECO	Tue, Jul 14, 2009	4.20	4.20	4.02	4.14
3814	NASDAQ	CECO	Mon, Jul 13, 2009	3.71	4.15	3.71	4.15
3813	NASDAQ	CECO	Fri, Jul 10, 2009	3.76	4.01	3.66	3.73
3812	NASDAQ	CECO	Thu, Jul 9, 2009	3.82	3.85	3.79	3.82
3811	NASDAQ	CECO	Wed, Jul 8, 2009	3.94	3.94	3.81	3.85
3810	NASDAQ	CECO	Tue, Jul 7, 2009	4.00	4.01	3.93	3.94
3809	NASDAQ	CECO	Mon, Jul 6, 2009	3.98	4.01	3.96	4.00
3808	NASDAQ	CECO	Thu, Jul 2, 2009	3.99	4.05	3.85	4.00
3807	NASDAQ	CECO	Wed, Jul 1, 2009	3.94	4.02	3.93	4.00
3806	NASDAQ	CECO	Tue, Jun 30, 2009	3.98	4.06	3.98	3.98
3805	NASDAQ	CECO	Mon, Jun 29, 2009	4.12	4.16	4.00	4.04
3804	NASDAQ	CECO	Fri, Jun 26, 2009	3.66	4.18	3.66	4.18
3803	NASDAQ	CECO	Thu, Jun 25, 2009	3.55	3.77	3.55	3.77
3802	NASDAQ	CECO	Wed, Jun 24, 2009	3.34	3.87	3.34	3.52
3801	NASDAQ	CECO	Tue, Jun 23, 2009	3.40	3.41	3.38	3.41
3800	NASDAQ	CECO	Mon, Jun 22, 2009	3.48	3.56	3.25	3.39
3799	NASDAQ	CECO	Fri, Jun 19, 2009	3.44	3.62	3.44	3.57
3798	NASDAQ	CECO	Thu, Jun 18, 2009	3.41	3.46	3.41	3.45
3797	NASDAQ	CECO	Wed, Jun 17, 2009	3.45	3.47	3.42	3.44
3796	NASDAQ	CECO	Tue, Jun 16, 2009	3.40	3.55	3.40	3.46
3795	NASDAQ	CECO	Mon, Jun 15, 2009	3.58	3.58	3.35	3.36
3794	NASDAQ	CECO	Fri, Jun 12, 2009	3.75	3.75	3.51	3.51
3793	NASDAQ	CECO	Thu, Jun 11, 2009	3.76	3.84	3.40	3.79
3792	NASDAQ	CECO	Wed, Jun 10, 2009	3.64	3.98	3.42	3.64
3791	NASDAQ	CECO	Tue, Jun 9, 2009	3.66	3.69	3.42	3.47
3790	NASDAQ	CECO	Mon, Jun 8, 2009	3.69	3.69	3.66	3.66
3789	NASDAQ	CECO	Fri, Jun 5, 2009	3.69	3.72	3.58	3.69
3788	NASDAQ	CECO	Thu, Jun 4, 2009	3.60	3.65	3.52	3.59
3787	NASDAQ	CECO	Wed, Jun 3, 2009	3.47	3.54	3.32	3.50
3786	NASDAQ	CECO	Tue, Jun 2, 2009	3.20	3.41	3.20	3.41
3785	NASDAQ	CECO	Mon, Jun 1, 2009	3.27	3.40	3.15	3.21
3784	NASDAQ	CECO	Fri, May 29, 2009	3.51	3.62	3.25	3.30
3783	NASDAQ	CECO	Thu, May 28, 2009	3.50	3.50	3.42	3.42
3782	NASDAQ	CECO	Wed, May 27, 2009	3.50	3.54	3.45	3.45
3781	NASDAQ	CECO	Tue, May 26, 2009	3.50	3.52	3.40	3.47
3780	NASDAQ	CECO	Fri, May 22, 2009	3.50	3.62	3.25	3.47
3779	NASDAQ	CECO	Thu, May 21, 2009	3.60	3.60	3.49	3.50
3778	NASDAQ	CECO	Wed, May 20, 2009	3.60	3.70	3.55	3.58
3777	NASDAQ	CECO	Tue, May 19, 2009	3.47	3.73	3.47	3.55
3776	NASDAQ	CECO	Mon, May 18, 2009	3.40	3.55	3.26	3.47
3775	NASDAQ	CECO	Fri, May 15, 2009	3.48	3.50	3.40	3.40
3774	NASDAQ	CECO	Thu, May 14, 2009	3.40	3.50	3.26	3.40
3773	NASDAQ	CECO	Wed, May 13, 2009	3.79	3.79	3.36	3.39
3772	NASDAQ	CECO	Tue, May 12, 2009	3.89	4.18	3.75	3.78
3771	NASDAQ	CECO	Mon, May 11, 2009	3.84	4.03	3.78	3.80
3770	NASDAQ	CECO	Fri, May 8, 2009	4.10	4.10	3.80	3.80
3769	NASDAQ	CECO	Thu, May 7, 2009	4.08	4.51	4.05	4.11
3768	NASDAQ	CECO	Wed, May 6, 2009	3.75	4.09	3.74	4.00
3767	NASDAQ	CECO	Tue, May 5, 2009	3.68	3.68	3.54	3.61
3766	NASDAQ	CECO	Mon, May 4, 2009	3.66	3.76	3.61	3.76
3765	NASDAQ	CECO	Fri, May 1, 2009	3.64	3.65	3.52	3.60
3764	NASDAQ	CECO	Thu, Apr 30, 2009	3.79	3.80	3.43	3.55
3763	NASDAQ	CECO	Wed, Apr 29, 2009	3.47	3.86	3.47	3.69
3762	NASDAQ	CECO	Tue, Apr 28, 2009	3.41	3.44	3.25	3.44
3761	NASDAQ	CECO	Mon, Apr 27, 2009	3.62	3.68	3.40	3.40
3760	NASDAQ	CECO	Fri, Apr 24, 2009	3.78	3.78	3.58	3.59
3759	NASDAQ	CECO	Thu, Apr 23, 2009	3.60	3.75	3.57	3.74
3758	NASDAQ	CECO	Wed, Apr 22, 2009	3.65	3.67	3.58	3.58
3757	NASDAQ	CECO	Tue, Apr 21, 2009	3.75	3.76	3.66	3.66
3756	NASDAQ	CECO	Mon, Apr 20, 2009	3.95	3.95	3.73	3.79
3755	NASDAQ	CECO	Fri, Apr 17, 2009	3.95	3.98	3.75	3.94
3754	NASDAQ	CECO	Thu, Apr 16, 2009	3.77	3.97	3.69	3.88
3753	NASDAQ	CECO	Wed, Apr 15, 2009	3.68	3.84	3.54	3.64
3752	NASDAQ	CECO	Tue, Apr 14, 2009	3.48	3.89	3.39	3.63
3751	NASDAQ	CECO	Mon, Apr 13, 2009	3.29	3.48	3.29	3.41
3750	NASDAQ	CECO	Thu, Apr 9, 2009	3.27	3.32	3.14	3.24
3749	NASDAQ	CECO	Wed, Apr 8, 2009	3.35	3.50	3.19	3.24
3748	NASDAQ	CECO	Tue, Apr 7, 2009	3.30	3.50	3.30	3.37
3747	NASDAQ	CECO	Mon, Apr 6, 2009	3.60	3.60	3.26	3.43
3746	NASDAQ	CECO	Fri, Apr 3, 2009	3.25	3.55	3.25	3.55
3745	NASDAQ	CECO	Thu, Apr 2, 2009	3.25	3.34	3.08	3.25
3744	NASDAQ	CECO	Wed, Apr 1, 2009	2.92	3.35	2.92	3.16
3743	NASDAQ	CECO	Tue, Mar 31, 2009	2.75	3.00	2.75	2.96
3742	NASDAQ	CECO	Mon, Mar 30, 2009	3.10	3.10	2.95	3.00
3741	NASDAQ	CECO	Fri, Mar 27, 2009	3.13	3.24	3.07	3.15
3740	NASDAQ	CECO	Thu, Mar 26, 2009	3.11	3.25	3.11	3.24
3739	NASDAQ	CECO	Wed, Mar 25, 2009	3.17	3.22	2.99	3.02
3738	NASDAQ	CECO	Tue, Mar 24, 2009	3.06	3.14	3.00	3.07
3737	NASDAQ	CECO	Mon, Mar 23, 2009	2.61	3.01	2.60	2.99
3736	NASDAQ	CECO	Fri, Mar 20, 2009	2.85	2.88	2.60	2.68
3735	NASDAQ	CECO	Thu, Mar 19, 2009	2.68	2.83	2.57	2.83
3734	NASDAQ	CECO	Wed, Mar 18, 2009	2.68	2.75	2.63	2.68
3733	NASDAQ	CECO	Tue, Mar 17, 2009	2.56	2.70	2.55	2.70
3732	NASDAQ	CECO	Mon, Mar 16, 2009	2.66	2.68	2.55	2.60
3731	NASDAQ	CECO	Fri, Mar 13, 2009	2.40	2.69	2.40	2.50
3730	NASDAQ	CECO	Thu, Mar 12, 2009	2.36	2.49	2.23	2.39
3729	NASDAQ	CECO	Wed, Mar 11, 2009	2.04	2.12	2.01	2.12
3728	NASDAQ	CECO	Tue, Mar 10, 2009	2.00	2.14	2.00	2.11
3727	NASDAQ	CECO	Mon, Mar 9, 2009	1.91	1.97	1.90	1.92
3726	NASDAQ	CECO	Fri, Mar 6, 2009	1.95	1.97	1.80	1.86
3725	NASDAQ	CECO	Thu, Mar 5, 2009	2.15	2.15	1.90	1.90
3724	NASDAQ	CECO	Wed, Mar 4, 2009	1.87	2.19	1.87	2.15
3723	NASDAQ	CECO	Tue, Mar 3, 2009	2.07	2.07	1.85	1.92
3722	NASDAQ	CECO	Mon, Mar 2, 2009	2.30	2.30	2.02	2.11
3721	NASDAQ	CECO	Fri, Feb 27, 2009	2.30	2.33	2.16	2.33
3720	NASDAQ	CECO	Thu, Feb 26, 2009	2.48	2.56	2.35	2.36
3719	NASDAQ	CECO	Wed, Feb 25, 2009	2.07	2.40	2.00	2.39
3718	NASDAQ	CECO	Tue, Feb 24, 2009	2.15	2.30	2.05	2.30
3717	NASDAQ	CECO	Mon, Feb 23, 2009	2.07	2.39	2.01	2.18
3716	NASDAQ	CECO	Fri, Feb 20, 2009	2.31	2.37	1.92	2.01
3715	NASDAQ	CECO	Thu, Feb 19, 2009	2.72	2.85	2.30	2.31
3714	NASDAQ	CECO	Wed, Feb 18, 2009	2.79	2.79	2.51	2.72
3713	NASDAQ	CECO	Tue, Feb 17, 2009	2.78	2.85	2.70	2.70
3712	NASDAQ	CECO	Fri, Feb 13, 2009	2.63	2.94	2.63	2.85
3711	NASDAQ	CECO	Thu, Feb 12, 2009	2.39	2.64	2.39	2.60
3710	NASDAQ	CECO	Wed, Feb 11, 2009	2.85	2.85	2.50	2.51
3709	NASDAQ	CECO	Tue, Feb 10, 2009	2.71	2.94	2.65	2.66
3708	NASDAQ	CECO	Mon, Feb 9, 2009	2.57	2.78	2.56	2.78
3707	NASDAQ	CECO	Fri, Feb 6, 2009	2.50	2.59	2.41	2.56
3706	NASDAQ	CECO	Thu, Feb 5, 2009	2.48	2.53	2.35	2.49
3705	NASDAQ	CECO	Wed, Feb 4, 2009	2.55	2.57	2.48	2.50
3704	NASDAQ	CECO	Tue, Feb 3, 2009	2.50	2.53	2.34	2.51
3703	NASDAQ	CECO	Mon, Feb 2, 2009	2.24	2.45	2.19	2.44
3702	NASDAQ	CECO	Fri, Jan 30, 2009	2.27	2.39	2.27	2.35
3701	NASDAQ	CECO	Thu, Jan 29, 2009	2.30	2.36	2.26	2.33
3700	NASDAQ	CECO	Wed, Jan 28, 2009	2.35	2.47	2.30	2.40
3699	NASDAQ	CECO	Tue, Jan 27, 2009	2.27	2.38	2.21	2.37
3698	NASDAQ	CECO	Mon, Jan 26, 2009	2.24	2.32	2.23	2.32
3697	NASDAQ	CECO	Fri, Jan 23, 2009	2.21	2.34	2.20	2.26
3696	NASDAQ	CECO	Thu, Jan 22, 2009	2.48	2.48	2.27	2.30
3695	NASDAQ	CECO	Wed, Jan 21, 2009	2.40	2.60	2.34	2.60
3694	NASDAQ	CECO	Tue, Jan 20, 2009	2.42	2.59	2.22	2.45
3693	NASDAQ	CECO	Fri, Jan 16, 2009	2.54	2.54	2.48	2.51
3692	NASDAQ	CECO	Thu, Jan 15, 2009	2.40	2.58	2.40	2.58
3691	NASDAQ	CECO	Wed, Jan 14, 2009	2.60	2.66	2.27	2.38
3690	NASDAQ	CECO	Tue, Jan 13, 2009	2.58	2.75	2.58	2.60
3689	NASDAQ	CECO	Mon, Jan 12, 2009	2.85	2.87	2.60	2.72
3688	NASDAQ	CECO	Fri, Jan 9, 2009	2.97	2.99	2.80	2.84
3687	NASDAQ	CECO	Thu, Jan 8, 2009	2.45	2.85	2.45	2.85
3686	NASDAQ	CECO	Wed, Jan 7, 2009	2.90	2.97	2.50	2.50
3685	NASDAQ	CECO	Tue, Jan 6, 2009	2.63	2.94	2.63	2.92
3684	NASDAQ	CECO	Mon, Jan 5, 2009	2.50	2.68	2.50	2.67
3683	NASDAQ	CECO	Fri, Jan 2, 2009	2.60	2.60	2.45	2.55
3682	NASDAQ	CECO	Wed, Dec 31, 2008	2.42	2.59	2.42	2.42
3681	NASDAQ	CECO	Tue, Dec 30, 2008	2.41	2.65	2.41	2.50
3680	NASDAQ	CECO	Mon, Dec 29, 2008	2.42	2.50	2.40	2.46
3679	NASDAQ	CECO	Fri, Dec 26, 2008	2.48	2.55	2.41	2.48
3678	NASDAQ	CECO	Wed, Dec 24, 2008	2.50	2.50	2.28	2.50
3677	NASDAQ	CECO	Tue, Dec 23, 2008	2.50	2.50	2.44	2.46
3676	NASDAQ	CECO	Mon, Dec 22, 2008	2.67	2.67	2.37	2.53
3675	NASDAQ	CECO	Fri, Dec 19, 2008	2.38	2.66	2.35	2.66
3674	NASDAQ	CECO	Thu, Dec 18, 2008	2.54	2.67	2.43	2.43
3673	NASDAQ	CECO	Wed, Dec 17, 2008	2.37	2.60	2.37	2.59
3672	NASDAQ	CECO	Tue, Dec 16, 2008	2.22	2.35	2.21	2.32
3671	NASDAQ	CECO	Mon, Dec 15, 2008	2.26	2.30	2.20	2.26
3670	NASDAQ	CECO	Fri, Dec 12, 2008	2.34	2.40	2.17	2.30
3669	NASDAQ	CECO	Thu, Dec 11, 2008	2.49	2.54	2.34	2.42
3668	NASDAQ	CECO	Wed, Dec 10, 2008	2.36	2.45	2.35	2.40
3667	NASDAQ	CECO	Tue, Dec 9, 2008	2.26	2.72	2.26	2.32
3666	NASDAQ	CECO	Mon, Dec 8, 2008	2.30	2.50	2.21	2.46
3665	NASDAQ	CECO	Fri, Dec 5, 2008	2.34	2.48	2.30	2.30
3664	NASDAQ	CECO	Thu, Dec 4, 2008	2.20	2.51	2.20	2.33
3663	NASDAQ	CECO	Wed, Dec 3, 2008	2.07	2.28	2.05	2.19
3662	NASDAQ	CECO	Tue, Dec 2, 2008	2.06	2.30	2.04	2.25
3661	NASDAQ	CECO	Mon, Dec 1, 2008	2.12	2.12	1.98	1.98
3660	NASDAQ	CECO	Fri, Nov 28, 2008	2.15	2.26	2.14	2.18
3659	NASDAQ	CECO	Wed, Nov 26, 2008	1.94	2.35	1.94	2.19
3658	NASDAQ	CECO	Tue, Nov 25, 2008	2.28	2.28	2.12	2.12
3657	NASDAQ	CECO	Mon, Nov 24, 2008	2.47	2.47	2.11	2.20
3656	NASDAQ	CECO	Fri, Nov 21, 2008	1.73	2.03	1.65	2.00
3655	NASDAQ	CECO	Thu, Nov 20, 2008	1.82	1.83	1.65	1.66
3654	NASDAQ	CECO	Wed, Nov 19, 2008	1.95	1.99	1.86	1.91
3653	NASDAQ	CECO	Tue, Nov 18, 2008	2.01	2.08	1.84	1.95
3652	NASDAQ	CECO	Mon, Nov 17, 2008	2.00	2.08	1.97	2.03
3651	NASDAQ	CECO	Fri, Nov 14, 2008	1.80	2.13	1.80	2.01
3650	NASDAQ	CECO	Thu, Nov 13, 2008	1.66	2.11	1.62	1.89
3649	NASDAQ	CECO	Wed, Nov 12, 2008	1.86	1.86	1.60	1.70
3648	NASDAQ	CECO	Tue, Nov 11, 2008	2.11	2.12	1.76	1.95
3647	NASDAQ	CECO	Mon, Nov 10, 2008	2.31	2.58	2.12	2.12
3646	NASDAQ	CECO	Fri, Nov 7, 2008	2.50	2.50	2.20	2.32
3645	NASDAQ	CECO	Thu, Nov 6, 2008	3.01	3.01	2.29	2.48
3644	NASDAQ	CECO	Wed, Nov 5, 2008	3.25	3.37	3.09	3.16
3643	NASDAQ	CECO	Tue, Nov 4, 2008	3.19	3.25	3.11	3.20
3642	NASDAQ	CECO	Mon, Nov 3, 2008	2.84	3.19	2.81	3.11
3641	NASDAQ	CECO	Fri, Oct 31, 2008	2.58	2.80	2.55	2.80
3640	NASDAQ	CECO	Thu, Oct 30, 2008	2.77	2.82	2.35	2.64
3639	NASDAQ	CECO	Wed, Oct 29, 2008	2.60	2.78	2.39	2.73
3638	NASDAQ	CECO	Tue, Oct 28, 2008	2.74	2.79	2.55	2.63
3637	NASDAQ	CECO	Mon, Oct 27, 2008	2.79	2.87	2.70	2.73
3636	NASDAQ	CECO	Fri, Oct 24, 2008	2.65	2.94	2.61	2.90
3635	NASDAQ	CECO	Thu, Oct 23, 2008	3.35	3.35	2.80	2.96
3634	NASDAQ	CECO	Wed, Oct 22, 2008	3.34	3.34	3.01	3.06
3633	NASDAQ	CECO	Tue, Oct 21, 2008	3.50	3.50	3.32	3.38
3632	NASDAQ	CECO	Mon, Oct 20, 2008	3.49	3.68	3.34	3.38
3631	NASDAQ	CECO	Fri, Oct 17, 2008	3.30	3.46	2.45	3.41
3630	NASDAQ	CECO	Thu, Oct 16, 2008	3.31	3.40	3.03	3.31
3629	NASDAQ	CECO	Wed, Oct 15, 2008	3.70	3.78	3.35	3.42
3628	NASDAQ	CECO	Tue, Oct 14, 2008	2.76	3.87	2.75	3.67
3627	NASDAQ	CECO	Mon, Oct 13, 2008	2.51	2.87	2.51	2.76
3626	NASDAQ	CECO	Fri, Oct 10, 2008	2.61	2.65	2.34	2.37
3625	NASDAQ	CECO	Thu, Oct 9, 2008	3.03	3.03	2.45	2.75
3624	NASDAQ	CECO	Wed, Oct 8, 2008	3.03	3.08	2.26	2.93
3623	NASDAQ	CECO	Tue, Oct 7, 2008	3.41	3.66	3.10	3.11
3622	NASDAQ	CECO	Mon, Oct 6, 2008	3.84	3.84	3.33	3.44
3621	NASDAQ	CECO	Fri, Oct 3, 2008	4.03	4.06	3.88	3.95
3620	NASDAQ	CECO	Thu, Oct 2, 2008	4.15	4.15	3.88	4.01
3619	NASDAQ	CECO	Wed, Oct 1, 2008	3.96	4.19	3.96	4.11
3618	NASDAQ	CECO	Tue, Sep 30, 2008	3.80	3.99	3.60	3.96
3617	NASDAQ	CECO	Mon, Sep 29, 2008	4.06	4.11	3.68	3.85
3616	NASDAQ	CECO	Fri, Sep 26, 2008	4.14	4.23	4.05	4.16
3615	NASDAQ	CECO	Thu, Sep 25, 2008	4.46	4.51	4.25	4.25
3614	NASDAQ	CECO	Wed, Sep 24, 2008	4.75	4.75	4.28	4.40
3613	NASDAQ	CECO	Tue, Sep 23, 2008	4.33	4.67	4.33	4.55
3612	NASDAQ	CECO	Mon, Sep 22, 2008	4.32	4.40	4.25	4.28
3611	NASDAQ	CECO	Fri, Sep 19, 2008	4.07	4.45	4.07	4.38
3610	NASDAQ	CECO	Thu, Sep 18, 2008	4.25	4.58	4.11	4.20
3609	NASDAQ	CECO	Wed, Sep 17, 2008	4.43	4.55	4.16	4.25
3608	NASDAQ	CECO	Tue, Sep 16, 2008	4.50	4.54	4.11	4.54
3607	NASDAQ	CECO	Mon, Sep 15, 2008	4.58	4.65	4.50	4.52
3606	NASDAQ	CECO	Fri, Sep 12, 2008	4.72	4.72	4.65	4.65
3605	NASDAQ	CECO	Thu, Sep 11, 2008	4.78	4.81	4.64	4.81
3604	NASDAQ	CECO	Wed, Sep 10, 2008	4.84	5.02	4.76	4.80
3603	NASDAQ	CECO	Tue, Sep 9, 2008	4.85	4.90	4.70	4.74
3602	NASDAQ	CECO	Mon, Sep 8, 2008	4.95	5.18	4.68	4.92
3601	NASDAQ	CECO	Fri, Sep 5, 2008	5.12	5.20	4.85	4.91
3600	NASDAQ	CECO	Thu, Sep 4, 2008	4.86	5.24	4.82	4.98
3599	NASDAQ	CECO	Wed, Sep 3, 2008	4.75	4.82	4.72	4.81
3598	NASDAQ	CECO	Tue, Sep 2, 2008	4.84	4.85	4.49	4.80
3597	NASDAQ	CECO	Fri, Aug 29, 2008	4.74	4.81	4.55	4.76
3596	NASDAQ	CECO	Thu, Aug 28, 2008	4.63	4.75	4.61	4.72
3595	NASDAQ	CECO	Wed, Aug 27, 2008	4.60	4.66	4.52	4.64
3594	NASDAQ	CECO	Tue, Aug 26, 2008	4.52	4.80	4.46	4.56
3593	NASDAQ	CECO	Mon, Aug 25, 2008	4.80	4.82	4.56	4.57
3592	NASDAQ	CECO	Fri, Aug 22, 2008	4.74	4.89	4.70	4.78
3591	NASDAQ	CECO	Thu, Aug 21, 2008	4.78	4.78	4.66	4.66
3590	NASDAQ	CECO	Wed, Aug 20, 2008	4.88	5.00	4.76	4.78
3589	NASDAQ	CECO	Tue, Aug 19, 2008	4.79	4.97	4.66	4.79
3588	NASDAQ	CECO	Mon, Aug 18, 2008	5.03	5.04	4.77	4.78
3587	NASDAQ	CECO	Fri, Aug 15, 2008	4.83	5.03	4.66	5.00
3586	NASDAQ	CECO	Thu, Aug 14, 2008	4.65	5.25	4.65	4.86
3585	NASDAQ	CECO	Wed, Aug 13, 2008	5.02	5.07	4.53	4.65
3584	NASDAQ	CECO	Tue, Aug 12, 2008	5.24	5.24	4.96	4.99
3583	NASDAQ	CECO	Mon, Aug 11, 2008	5.23	5.30	5.10	5.11
3582	NASDAQ	CECO	Fri, Aug 8, 2008	5.27	5.49	5.01	5.27
3581	NASDAQ	CECO	Thu, Aug 7, 2008	6.00	6.15	4.81	5.25
3580	NASDAQ	CECO	Wed, Aug 6, 2008	5.87	6.30	5.87	6.24
3579	NASDAQ	CECO	Tue, Aug 5, 2008	5.66	5.90	5.49	5.82
3578	NASDAQ	CECO	Mon, Aug 4, 2008	5.78	5.78	5.61	5.76
3577	NASDAQ	CECO	Fri, Aug 1, 2008	6.21	6.21	5.84	5.91
3576	NASDAQ	CECO	Thu, Jul 31, 2008	5.85	6.33	5.68	5.99
3575	NASDAQ	CECO	Wed, Jul 30, 2008	5.91	6.19	5.68	5.83
3574	NASDAQ	CECO	Tue, Jul 29, 2008	6.06	6.11	5.79	5.79
3573	NASDAQ	CECO	Mon, Jul 28, 2008	6.34	6.38	6.00	6.04
3572	NASDAQ	CECO	Fri, Jul 25, 2008	6.15	6.45	6.15	6.31
3571	NASDAQ	CECO	Thu, Jul 24, 2008	6.17	6.25	6.03	6.16
3570	NASDAQ	CECO	Wed, Jul 23, 2008	5.79	6.21	5.77	6.17
3569	NASDAQ	CECO	Tue, Jul 22, 2008	5.48	5.79	5.41	5.75
3568	NASDAQ	CECO	Mon, Jul 21, 2008	5.35	5.59	5.26	5.52
3567	NASDAQ	CECO	Fri, Jul 18, 2008	5.37	5.37	5.13	5.26
3566	NASDAQ	CECO	Thu, Jul 17, 2008	5.34	5.44	5.15	5.33
3565	NASDAQ	CECO	Wed, Jul 16, 2008	5.08	5.29	4.90	5.23
3564	NASDAQ	CECO	Tue, Jul 15, 2008	5.09	5.20	4.91	5.11
3563	NASDAQ	CECO	Mon, Jul 14, 2008	5.45	5.46	5.15	5.33
3562	NASDAQ	CECO	Fri, Jul 11, 2008	5.61	5.83	5.43	5.45
3561	NASDAQ	CECO	Thu, Jul 10, 2008	5.94	5.94	5.60	5.78
3560	NASDAQ	CECO	Wed, Jul 9, 2008	5.36	6.05	5.36	5.90
3559	NASDAQ	CECO	Tue, Jul 8, 2008	5.32	5.40	5.19	5.32
3558	NASDAQ	CECO	Mon, Jul 7, 2008	5.65	5.80	5.35	5.36
3557	NASDAQ	CECO	Thu, Jul 3, 2008	5.82	5.91	5.55	5.67
3556	NASDAQ	CECO	Wed, Jul 2, 2008	5.73	5.93	5.73	5.85
3555	NASDAQ	CECO	Tue, Jul 1, 2008	5.90	5.90	5.50	5.69
3554	NASDAQ	CECO	Mon, Jun 30, 2008	5.40	5.89	5.31	5.89
3553	NASDAQ	CECO	Fri, Jun 27, 2008	5.23	5.35	5.00	5.35
3552	NASDAQ	CECO	Thu, Jun 26, 2008	5.50	5.66	5.20	5.20
3551	NASDAQ	CECO	Wed, Jun 25, 2008	5.50	5.67	5.48	5.56
3550	NASDAQ	CECO	Tue, Jun 24, 2008	5.62	5.62	5.36	5.44
3549	NASDAQ	CECO	Mon, Jun 23, 2008	5.99	6.00	5.47	5.62
3548	NASDAQ	CECO	Fri, Jun 20, 2008	6.20	6.22	5.87	6.00
3547	NASDAQ	CECO	Thu, Jun 19, 2008	6.30	6.34	6.15	6.18
3546	NASDAQ	CECO	Wed, Jun 18, 2008	6.27	6.41	6.25	6.27
3545	NASDAQ	CECO	Tue, Jun 17, 2008	6.24	6.38	6.09	6.20
3544	NASDAQ	CECO	Mon, Jun 16, 2008	6.20	6.29	6.09	6.20
3543	NASDAQ	CECO	Fri, Jun 13, 2008	6.14	6.22	6.08	6.16
3542	NASDAQ	CECO	Thu, Jun 12, 2008	6.14	6.57	6.10	6.15
3541	NASDAQ	CECO	Wed, Jun 11, 2008	6.27	6.27	6.10	6.12
3540	NASDAQ	CECO	Tue, Jun 10, 2008	6.23	6.28	6.21	6.23
3539	NASDAQ	CECO	Mon, Jun 9, 2008	6.28	6.28	6.19	6.23
3538	NASDAQ	CECO	Fri, Jun 6, 2008	6.32	6.40	6.23	6.25
3537	NASDAQ	CECO	Thu, Jun 5, 2008	6.43	6.43	6.20	6.38
3536	NASDAQ	CECO	Wed, Jun 4, 2008	6.40	6.49	6.15	6.30
3535	NASDAQ	CECO	Tue, Jun 3, 2008	6.30	6.58	6.27	6.38
3534	NASDAQ	CECO	Mon, Jun 2, 2008	6.51	6.89	6.20	6.26
3533	NASDAQ	CECO	Fri, May 30, 2008	6.87	6.94	6.35	6.35
3532	NASDAQ	CECO	Thu, May 29, 2008	6.95	7.07	6.85	6.89
3531	NASDAQ	CECO	Wed, May 28, 2008	7.10	7.19	6.96	6.98
3530	NASDAQ	CECO	Tue, May 27, 2008	7.03	7.13	7.00	7.06
3529	NASDAQ	CECO	Fri, May 23, 2008	7.25	7.30	6.95	6.99
3528	NASDAQ	CECO	Thu, May 22, 2008	7.33	7.35	7.17	7.19
3527	NASDAQ	CECO	Wed, May 21, 2008	7.31	7.51	7.12	7.19
3526	NASDAQ	CECO	Tue, May 20, 2008	7.30	7.53	7.07	7.34
3525	NASDAQ	CECO	Mon, May 19, 2008	7.65	7.65	7.17	7.26
3524	NASDAQ	CECO	Fri, May 16, 2008	7.61	7.79	7.46	7.60
3523	NASDAQ	CECO	Thu, May 15, 2008	7.48	7.64	7.38	7.49
3522	NASDAQ	CECO	Wed, May 14, 2008	7.86	7.93	7.42	7.50
3521	NASDAQ	CECO	Tue, May 13, 2008	7.56	7.93	7.56	7.81
3520	NASDAQ	CECO	Mon, May 12, 2008	7.54	7.94	7.35	7.53
3519	NASDAQ	CECO	Fri, May 9, 2008	7.47	8.00	7.40	7.49
3518	NASDAQ	CECO	Thu, May 8, 2008	8.16	8.16	7.27	7.40
3517	NASDAQ	CECO	Wed, May 7, 2008	8.94	9.16	8.85	8.87
3516	NASDAQ	CECO	Tue, May 6, 2008	9.33	9.33	8.68	9.00
3515	NASDAQ	CECO	Mon, May 5, 2008	8.39	9.24	8.37	9.01
3514	NASDAQ	CECO	Fri, May 2, 2008	8.79	8.79	8.27	8.47
3513	NASDAQ	CECO	Thu, May 1, 2008	8.32	8.86	8.12	8.58
3512	NASDAQ	CECO	Wed, Apr 30, 2008	8.12	8.35	8.12	8.35
3511	NASDAQ	CECO	Tue, Apr 29, 2008	8.40	8.49	8.15	8.19
3510	NASDAQ	CECO	Mon, Apr 28, 2008	8.18	8.53	8.07	8.53
3509	NASDAQ	CECO	Fri, Apr 25, 2008	8.89	8.91	8.06	8.13
3508	NASDAQ	CECO	Thu, Apr 24, 2008	8.91	9.07	8.64	8.76
3507	NASDAQ	CECO	Wed, Apr 23, 2008	8.98	9.04	8.65	8.86
3506	NASDAQ	CECO	Tue, Apr 22, 2008	9.01	9.18	8.99	9.02
3505	NASDAQ	CECO	Mon, Apr 21, 2008	9.11	9.22	8.92	9.09
3504	NASDAQ	CECO	Fri, Apr 18, 2008	8.92	9.24	8.92	9.00
3503	NASDAQ	CECO	Thu, Apr 17, 2008	9.34	9.34	8.85	8.85
3502	NASDAQ	CECO	Wed, Apr 16, 2008	9.35	9.45	9.05	9.31
3501	NASDAQ	CECO	Tue, Apr 15, 2008	8.95	9.28	8.80	9.23
3500	NASDAQ	CECO	Mon, Apr 14, 2008	9.01	9.08	8.82	8.86
3499	NASDAQ	CECO	Fri, Apr 11, 2008	8.95	9.08	8.83	9.08
3498	NASDAQ	CECO	Thu, Apr 10, 2008	9.04	9.15	8.76	9.00
3497	NASDAQ	CECO	Wed, Apr 9, 2008	9.14	9.45	9.03	9.14
3496	NASDAQ	CECO	Tue, Apr 8, 2008	9.27	9.49	9.00	9.19
3495	NASDAQ	CECO	Mon, Apr 7, 2008	9.44	9.44	9.20	9.37
3494	NASDAQ	CECO	Fri, Apr 4, 2008	9.55	9.55	9.12	9.35
3493	NASDAQ	CECO	Thu, Apr 3, 2008	9.11	9.59	9.00	9.49
3492	NASDAQ	CECO	Wed, Apr 2, 2008	9.20	9.44	8.74	9.09
3491	NASDAQ	CECO	Tue, Apr 1, 2008	8.61	9.43	8.52	9.06
3490	NASDAQ	CECO	Mon, Mar 31, 2008	8.00	8.72	7.99	8.52
3489	NASDAQ	CECO	Fri, Mar 28, 2008	7.82	7.85	7.45	7.76
3488	NASDAQ	CECO	Thu, Mar 27, 2008	7.89	7.90	7.66	7.83
3487	NASDAQ	CECO	Wed, Mar 26, 2008	7.64	7.86	7.38	7.84
3486	NASDAQ	CECO	Tue, Mar 25, 2008	6.81	7.70	6.71	7.70
3485	NASDAQ	CECO	Mon, Mar 24, 2008	6.80	7.50	6.65	6.77
3484	NASDAQ	CECO	Thu, Mar 20, 2008	7.31	7.43	6.64	6.77
3483	NASDAQ	CECO	Wed, Mar 19, 2008	7.79	7.81	7.29	7.33
3482	NASDAQ	CECO	Tue, Mar 18, 2008	7.85	7.90	7.34	7.80
3481	NASDAQ	CECO	Mon, Mar 17, 2008	7.05	7.87	6.77	7.74
3480	NASDAQ	CECO	Fri, Mar 14, 2008	8.00	8.00	7.12	7.21
3479	NASDAQ	CECO	Thu, Mar 13, 2008	8.07	8.10	7.63	7.97
3478	NASDAQ	CECO	Wed, Mar 12, 2008	7.64	8.16	7.22	8.15
3477	NASDAQ	CECO	Tue, Mar 11, 2008	7.44	7.52	7.06	7.17
3476	NASDAQ	CECO	Mon, Mar 10, 2008	7.82	7.86	7.24	7.24
3475	NASDAQ	CECO	Fri, Mar 7, 2008	7.83	7.99	7.55	7.93
3474	NASDAQ	CECO	Thu, Mar 6, 2008	8.10	8.17	7.89	7.92
3473	NASDAQ	CECO	Wed, Mar 5, 2008	8.26	8.54	8.16	8.18
3472	NASDAQ	CECO	Tue, Mar 4, 2008	8.93	8.95	8.20	8.21
3471	NASDAQ	CECO	Mon, Mar 3, 2008	9.09	9.19	8.79	8.91
3470	NASDAQ	CECO	Fri, Feb 29, 2008	9.24	9.77	9.10	9.11
3469	NASDAQ	CECO	Thu, Feb 28, 2008	9.38	9.44	9.26	9.34
3468	NASDAQ	CECO	Wed, Feb 27, 2008	9.32	9.43	9.20	9.38
3467	NASDAQ	CECO	Tue, Feb 26, 2008	9.35	9.56	9.22	9.42
3466	NASDAQ	CECO	Mon, Feb 25, 2008	9.08	9.75	9.08	9.45
3465	NASDAQ	CECO	Fri, Feb 22, 2008	9.30	9.37	9.05	9.13
3464	NASDAQ	CECO	Thu, Feb 21, 2008	9.34	9.58	9.09	9.33
3463	NASDAQ	CECO	Wed, Feb 20, 2008	9.00	9.33	8.97	9.20
3462	NASDAQ	CECO	Tue, Feb 19, 2008	9.44	9.44	8.95	9.02
3461	NASDAQ	CECO	Fri, Feb 15, 2008	9.28	9.34	9.18	9.27
3460	NASDAQ	CECO	Thu, Feb 14, 2008	9.43	9.55	9.30	9.30
3459	NASDAQ	CECO	Wed, Feb 13, 2008	9.34	9.45	9.25	9.40
3458	NASDAQ	CECO	Tue, Feb 12, 2008	9.38	9.52	9.05	9.25
3457	NASDAQ	CECO	Mon, Feb 11, 2008	9.09	9.40	9.09	9.35
3456	NASDAQ	CECO	Fri, Feb 8, 2008	9.35	9.39	9.07	9.07
3455	NASDAQ	CECO	Thu, Feb 7, 2008	9.34	9.71	9.34	9.38
3454	NASDAQ	CECO	Wed, Feb 6, 2008	9.64	10.01	9.45	9.45
3453	NASDAQ	CECO	Tue, Feb 5, 2008	9.97	10.09	9.60	9.60
3452	NASDAQ	CECO	Mon, Feb 4, 2008	10.10	10.20	10.02	10.15
3451	NASDAQ	CECO	Fri, Feb 1, 2008	9.44	10.24	9.44	10.07
3450	NASDAQ	CECO	Thu, Jan 31, 2008	9.10	9.47	9.10	9.32
3449	NASDAQ	CECO	Wed, Jan 30, 2008	9.16	9.45	9.16	9.20
3448	NASDAQ	CECO	Tue, Jan 29, 2008	9.07	9.44	9.07	9.16
3447	NASDAQ	CECO	Mon, Jan 28, 2008	9.12	9.16	8.91	8.97
3446	NASDAQ	CECO	Fri, Jan 25, 2008	9.00	9.16	8.95	9.08
3445	NASDAQ	CECO	Thu, Jan 24, 2008	8.68	8.94	8.54	8.91
3444	NASDAQ	CECO	Wed, Jan 23, 2008	8.50	8.89	8.14	8.67
3443	NASDAQ	CECO	Tue, Jan 22, 2008	8.55	8.74	7.77	8.73
3442	NASDAQ	CECO	Fri, Jan 18, 2008	9.25	9.41	9.08	9.18
3441	NASDAQ	CECO	Thu, Jan 17, 2008	9.36	9.47	9.11	9.21
3440	NASDAQ	CECO	Wed, Jan 16, 2008	9.31	9.39	9.08	9.25
3439	NASDAQ	CECO	Tue, Jan 15, 2008	9.30	9.50	9.30	9.42
3438	NASDAQ	CECO	Mon, Jan 14, 2008	9.66	9.74	9.32	9.47
3437	NASDAQ	CECO	Fri, Jan 11, 2008	9.74	9.80	9.46	9.48
3436	NASDAQ	CECO	Thu, Jan 10, 2008	10.65	10.79	9.31	9.79
3435	NASDAQ	CECO	Wed, Jan 9, 2008	11.51	11.54	10.65	10.65
3434	NASDAQ	CECO	Tue, Jan 8, 2008	11.19	11.68	11.14	11.40
3433	NASDAQ	CECO	Mon, Jan 7, 2008	11.10	11.18	10.81	10.97
3432	NASDAQ	CECO	Fri, Jan 4, 2008	11.05	11.21	10.70	11.03
3431	NASDAQ	CECO	Thu, Jan 3, 2008	11.01	11.35	10.86	11.22
3430	NASDAQ	CECO	Wed, Jan 2, 2008	10.93	11.20	10.71	11.05
3429	NASDAQ	CECO	Mon, Dec 31, 2007	11.00	11.14	10.88	10.98
3428	NASDAQ	CECO	Fri, Dec 28, 2007	10.97	11.20	10.95	11.04
3427	NASDAQ	CECO	Thu, Dec 27, 2007	11.15	11.32	10.80	10.98
3426	NASDAQ	CECO	Wed, Dec 26, 2007	11.04	11.30	10.88	11.12
3425	NASDAQ	CECO	Mon, Dec 24, 2007	10.82	11.25	10.82	11.04
3424	NASDAQ	CECO	Fri, Dec 21, 2007	10.65	10.80	10.46	10.80
3423	NASDAQ	CECO	Thu, Dec 20, 2007	10.65	10.65	10.29	10.44
3422	NASDAQ	CECO	Wed, Dec 19, 2007	9.83	10.55	9.60	10.54
3421	NASDAQ	CECO	Tue, Dec 18, 2007	10.16	10.16	9.60	9.80
3420	NASDAQ	CECO	Mon, Dec 17, 2007	10.33	10.33	9.75	10.02
3419	NASDAQ	CECO	Fri, Dec 14, 2007	10.65	10.65	10.13	10.35
3418	NASDAQ	CECO	Thu, Dec 13, 2007	10.37	10.62	10.12	10.35
3417	NASDAQ	CECO	Wed, Dec 12, 2007	11.40	11.75	10.37	10.45
3416	NASDAQ	CECO	Tue, Dec 11, 2007	11.28	11.47	11.05	11.22
3415	NASDAQ	CECO	Mon, Dec 10, 2007	11.28	11.34	10.90	11.23
3414	NASDAQ	CECO	Fri, Dec 7, 2007	11.50	11.50	11.23	11.28
3413	NASDAQ	CECO	Thu, Dec 6, 2007	11.55	11.62	11.16	11.48
3412	NASDAQ	CECO	Wed, Dec 5, 2007	11.33	11.75	11.33	11.51
3411	NASDAQ	CECO	Tue, Dec 4, 2007	11.61	11.64	11.32	11.33
3410	NASDAQ	CECO	Mon, Dec 3, 2007	11.58	11.79	11.58	11.67
3409	NASDAQ	CECO	Fri, Nov 30, 2007	11.38	11.94	11.38	11.59
3408	NASDAQ	CECO	Thu, Nov 29, 2007	11.19	11.85	11.09	11.21
3407	NASDAQ	CECO	Wed, Nov 28, 2007	10.80	11.19	10.61	11.08
3406	NASDAQ	CECO	Tue, Nov 27, 2007	10.52	10.71	10.35	10.69
3405	NASDAQ	CECO	Mon, Nov 26, 2007	11.00	11.23	10.40	10.44
3404	NASDAQ	CECO	Fri, Nov 23, 2007	10.34	11.22	10.34	10.95
3403	NASDAQ	CECO	Wed, Nov 21, 2007	11.23	11.36	10.15	10.24
3402	NASDAQ	CECO	Tue, Nov 20, 2007	12.28	12.73	11.20	11.32
3401	NASDAQ	CECO	Mon, Nov 19, 2007	13.19	13.19	12.01	12.25
3400	NASDAQ	CECO	Fri, Nov 16, 2007	13.46	13.46	12.83	13.00
3399	NASDAQ	CECO	Thu, Nov 15, 2007	13.31	13.74	13.13	13.36
3398	NASDAQ	CECO	Wed, Nov 14, 2007	13.34	13.96	13.19	13.30
3397	NASDAQ	CECO	Tue, Nov 13, 2007	12.92	13.44	12.85	13.19
3396	NASDAQ	CECO	Mon, Nov 12, 2007	13.60	14.25	12.72	12.92
3395	NASDAQ	CECO	Fri, Nov 9, 2007	13.70	14.28	13.44	13.58
3394	NASDAQ	CECO	Thu, Nov 8, 2007	14.60	14.60	13.24	13.62
3393	NASDAQ	CECO	Wed, Nov 7, 2007	14.50	14.51	14.12	14.37
3392	NASDAQ	CECO	Tue, Nov 6, 2007	14.70	14.95	14.07	14.60
3391	NASDAQ	CECO	Mon, Nov 5, 2007	14.88	15.20	14.40	14.50
3390	NASDAQ	CECO	Fri, Nov 2, 2007	14.65	15.17	14.29	15.02
3389	NASDAQ	CECO	Thu, Nov 1, 2007	14.38	14.60	14.00	14.34
3388	NASDAQ	CECO	Wed, Oct 31, 2007	14.54	14.99	14.18	14.56
3387	NASDAQ	CECO	Tue, Oct 30, 2007	14.60	14.65	14.11	14.18
3386	NASDAQ	CECO	Mon, Oct 29, 2007	14.82	15.35	14.61	14.71
3385	NASDAQ	CECO	Fri, Oct 26, 2007	14.95	14.95	14.38	14.76
3384	NASDAQ	CECO	Thu, Oct 25, 2007	14.69	14.95	14.46	14.73
3383	NASDAQ	CECO	Wed, Oct 24, 2007	14.87	14.87	14.00	14.60
3382	NASDAQ	CECO	Tue, Oct 23, 2007	14.73	15.20	14.48	14.96
3381	NASDAQ	CECO	Mon, Oct 22, 2007	14.00	15.00	13.81	14.48
3380	NASDAQ	CECO	Fri, Oct 19, 2007	14.88	14.88	13.94	14.10
3379	NASDAQ	CECO	Thu, Oct 18, 2007	14.82	15.00	14.81	14.96
3378	NASDAQ	CECO	Wed, Oct 17, 2007	14.51	15.36	14.51	14.83
3377	NASDAQ	CECO	Tue, Oct 16, 2007	14.88	15.05	14.32	14.32
3376	NASDAQ	CECO	Mon, Oct 15, 2007	14.97	15.05	14.74	15.03
3375	NASDAQ	CECO	Fri, Oct 12, 2007	13.86	15.00	13.82	14.77
3374	NASDAQ	CECO	Thu, Oct 11, 2007	14.90	15.09	13.76	13.85
3373	NASDAQ	CECO	Wed, Oct 10, 2007	14.93	15.00	14.81	14.85
3372	NASDAQ	CECO	Tue, Oct 9, 2007	15.03	15.35	14.58	14.99
3371	NASDAQ	CECO	Mon, Oct 8, 2007	14.84	15.09	14.70	15.04
3370	NASDAQ	CECO	Fri, Oct 5, 2007	14.96	15.75	14.70	14.70
3369	NASDAQ	CECO	Thu, Oct 4, 2007	14.31	15.05	14.05	14.86
3368	NASDAQ	CECO	Wed, Oct 3, 2007	15.01	15.03	14.17	14.34
3367	NASDAQ	CECO	Tue, Oct 2, 2007	15.67	15.85	15.07	15.13
3366	NASDAQ	CECO	Mon, Oct 1, 2007	15.24	16.29	15.24	15.61
3365	NASDAQ	CECO	Fri, Sep 28, 2007	16.00	16.25	15.05	15.28
3364	NASDAQ	CECO	Thu, Sep 27, 2007	15.20	15.79	15.13	15.79
3363	NASDAQ	CECO	Wed, Sep 26, 2007	15.05	15.42	15.01	15.16
3362	NASDAQ	CECO	Tue, Sep 25, 2007	15.69	15.70	14.85	15.02
3361	NASDAQ	CECO	Mon, Sep 24, 2007	15.55	16.24	15.31	15.82
3360	NASDAQ	CECO	Fri, Sep 21, 2007	13.70	15.70	13.55	15.63
3359	NASDAQ	CECO	Thu, Sep 20, 2007	13.71	13.71	13.28	13.52
3358	NASDAQ	CECO	Wed, Sep 19, 2007	13.87	13.98	13.69	13.80
3357	NASDAQ	CECO	Tue, Sep 18, 2007	13.50	13.73	13.33	13.73
3356	NASDAQ	CECO	Mon, Sep 17, 2007	13.03	13.49	12.75	13.49
3355	NASDAQ	CECO	Fri, Sep 14, 2007	12.90	13.18	12.58	13.10
3354	NASDAQ	CECO	Thu, Sep 13, 2007	13.18	13.18	12.85	12.93
3353	NASDAQ	CECO	Wed, Sep 12, 2007	12.64	13.10	12.61	13.01
3352	NASDAQ	CECO	Tue, Sep 11, 2007	12.64	12.81	12.47	12.72
3351	NASDAQ	CECO	Mon, Sep 10, 2007	12.59	12.95	12.30	12.55
3350	NASDAQ	CECO	Fri, Sep 7, 2007	12.89	13.08	12.20	12.32
3349	NASDAQ	CECO	Thu, Sep 6, 2007	12.91	13.11	12.54	13.09
3348	NASDAQ	CECO	Wed, Sep 5, 2007	13.00	13.11	12.82	12.94
3347	NASDAQ	CECO	Tue, Sep 4, 2007	12.57	13.24	12.57	13.13
3346	NASDAQ	CECO	Fri, Aug 31, 2007	12.90	12.95	12.50	12.65
3345	NASDAQ	CECO	Thu, Aug 30, 2007	12.36	12.92	12.35	12.78
3344	NASDAQ	CECO	Wed, Aug 29, 2007	12.49	12.52	12.08	12.50
3343	NASDAQ	CECO	Tue, Aug 28, 2007	12.40	12.57	12.31	12.48
3342	NASDAQ	CECO	Mon, Aug 27, 2007	12.28	12.65	12.28	12.40
3341	NASDAQ	CECO	Fri, Aug 24, 2007	11.89	12.43	11.70	12.34
3340	NASDAQ	CECO	Thu, Aug 23, 2007	12.05	12.27	11.80	11.80
3339	NASDAQ	CECO	Wed, Aug 22, 2007	11.99	12.02	11.78	12.01
3338	NASDAQ	CECO	Tue, Aug 21, 2007	11.94	12.25	11.79	11.96
3337	NASDAQ	CECO	Mon, Aug 20, 2007	11.99	12.00	11.72	11.89
3336	NASDAQ	CECO	Fri, Aug 17, 2007	11.11	12.54	11.11	11.84
3335	NASDAQ	CECO	Thu, Aug 16, 2007	11.66	11.66	10.66	11.20
3334	NASDAQ	CECO	Wed, Aug 15, 2007	11.91	12.06	11.62	11.74
3333	NASDAQ	CECO	Tue, Aug 14, 2007	12.47	12.49	11.60	11.94
3332	NASDAQ	CECO	Mon, Aug 13, 2007	11.90	12.52	11.67	12.37
3331	NASDAQ	CECO	Fri, Aug 10, 2007	13.15	13.21	11.10	11.77
3330	NASDAQ	CECO	Thu, Aug 9, 2007	13.10	13.86	12.69	13.07
3329	NASDAQ	CECO	Wed, Aug 8, 2007	11.61	13.30	11.61	12.75
3328	NASDAQ	CECO	Tue, Aug 7, 2007	11.47	11.74	11.18	11.68
3327	NASDAQ	CECO	Mon, Aug 6, 2007	11.68	11.90	11.11	11.66
3326	NASDAQ	CECO	Fri, Aug 3, 2007	11.80	12.06	11.35	11.51
3325	NASDAQ	CECO	Thu, Aug 2, 2007	11.51	11.93	11.28	11.93
3324	NASDAQ	CECO	Wed, Aug 1, 2007	11.42	11.89	11.00	11.51
3323	NASDAQ	CECO	Tue, Jul 31, 2007	11.50	11.66	11.18	11.48
3322	NASDAQ	CECO	Mon, Jul 30, 2007	11.61	11.70	11.12	11.56
3321	NASDAQ	CECO	Fri, Jul 27, 2007	11.22	11.69	10.59	11.40
3320	NASDAQ	CECO	Thu, Jul 26, 2007	12.07	12.07	11.12	11.21
3319	NASDAQ	CECO	Wed, Jul 25, 2007	13.00	13.00	11.87	12.07
3318	NASDAQ	CECO	Tue, Jul 24, 2007	13.30	13.30	12.80	12.85
3317	NASDAQ	CECO	Mon, Jul 23, 2007	12.75	13.40	12.68	13.30
3316	NASDAQ	CECO	Fri, Jul 20, 2007	12.81	13.01	12.35	12.73
3315	NASDAQ	CECO	Thu, Jul 19, 2007	12.73	13.30	12.62	12.88
3314	NASDAQ	CECO	Wed, Jul 18, 2007	12.70	12.75	12.25	12.72
3313	NASDAQ	CECO	Tue, Jul 17, 2007	12.47	12.85	12.27	12.78
3312	NASDAQ	CECO	Mon, Jul 16, 2007	13.00	13.00	12.35	12.47
3311	NASDAQ	CECO	Fri, Jul 13, 2007	13.00	13.17	12.59	12.82
3310	NASDAQ	CECO	Thu, Jul 12, 2007	12.25	13.21	12.15	13.11
3309	NASDAQ	CECO	Wed, Jul 11, 2007	12.16	12.22	11.85	12.12
3308	NASDAQ	CECO	Tue, Jul 10, 2007	11.51	12.39	11.45	12.03
3307	NASDAQ	CECO	Mon, Jul 9, 2007	11.31	11.86	11.30	11.46
3306	NASDAQ	CECO	Fri, Jul 6, 2007	11.70	11.72	11.34	11.34
3305	NASDAQ	CECO	Thu, Jul 5, 2007	11.96	11.96	11.53	11.71
3304	NASDAQ	CECO	Tue, Jul 3, 2007	11.54	11.90	11.54	11.86
3303	NASDAQ	CECO	Mon, Jul 2, 2007	11.47	11.70	11.22	11.56
3302	NASDAQ	CECO	Fri, Jun 29, 2007	11.36	11.65	11.31	11.48
3301	NASDAQ	CECO	Thu, Jun 28, 2007	11.29	11.49	11.07	11.37
3300	NASDAQ	CECO	Wed, Jun 27, 2007	11.59	11.62	11.25	11.26
3299	NASDAQ	CECO	Tue, Jun 26, 2007	12.06	12.16	11.66	11.68
3298	NASDAQ	CECO	Mon, Jun 25, 2007	11.95	12.24	11.85	12.05
3297	NASDAQ	CECO	Fri, Jun 22, 2007	12.12	12.14	11.76	11.85
3296	NASDAQ	CECO	Thu, Jun 21, 2007	12.12	12.20	12.00	12.13
3295	NASDAQ	CECO	Wed, Jun 20, 2007	12.05	12.14	11.97	12.11
3294	NASDAQ	CECO	Tue, Jun 19, 2007	12.03	12.09	11.91	12.03
3293	NASDAQ	CECO	Mon, Jun 18, 2007	12.10	12.16	11.96	12.11
3292	NASDAQ	CECO	Fri, Jun 15, 2007	12.16	12.24	11.98	11.99
3291	NASDAQ	CECO	Thu, Jun 14, 2007	11.99	12.15	11.91	12.08
3290	NASDAQ	CECO	Wed, Jun 13, 2007	11.80	12.15	11.80	12.04
3289	NASDAQ	CECO	Tue, Jun 12, 2007	12.08	12.09	11.50	11.79
3288	NASDAQ	CECO	Mon, Jun 11, 2007	12.16	12.16	11.90	11.98
3287	NASDAQ	CECO	Fri, Jun 8, 2007	12.24	12.24	11.78	11.85
3286	NASDAQ	CECO	Thu, Jun 7, 2007	12.20	12.20	11.90	11.97
3285	NASDAQ	CECO	Wed, Jun 6, 2007	12.60	12.79	12.12	12.17
3284	NASDAQ	CECO	Tue, Jun 5, 2007	13.00	13.00	12.60	12.69
3283	NASDAQ	CECO	Mon, Jun 4, 2007	12.80	13.28	12.62	12.95
3282	NASDAQ	CECO	Fri, Jun 1, 2007	12.35	13.05	12.27	12.89
3281	NASDAQ	CECO	Thu, May 31, 2007	12.09	12.39	12.00	12.20
3280	NASDAQ	CECO	Wed, May 30, 2007	12.28	12.28	11.96	12.01
3279	NASDAQ	CECO	Tue, May 29, 2007	12.55	12.56	12.14	12.31
3278	NASDAQ	CECO	Fri, May 25, 2007	11.76	12.60	11.76	12.54
3277	NASDAQ	CECO	Thu, May 24, 2007	12.06	12.06	11.46	11.55
3276	NASDAQ	CECO	Wed, May 23, 2007	11.67	12.39	11.67	12.10
3275	NASDAQ	CECO	Tue, May 22, 2007	11.75	11.78	11.49	11.62
3274	NASDAQ	CECO	Mon, May 21, 2007	11.96	11.96	11.34	11.43
3273	NASDAQ	CECO	Fri, May 18, 2007	11.61	12.11	11.28	11.96
3272	NASDAQ	CECO	Thu, May 17, 2007	11.12	11.65	11.00	11.50
3271	NASDAQ	CECO	Wed, May 16, 2007	11.26	11.26	10.90	11.11
3270	NASDAQ	CECO	Tue, May 15, 2007	11.38	11.53	11.07	11.26
3269	NASDAQ	CECO	Mon, May 14, 2007	12.02	12.19	11.36	11.54
3268	NASDAQ	CECO	Fri, May 11, 2007	12.14	12.14	11.63	12.02
3267	NASDAQ	CECO	Thu, May 10, 2007	12.52	12.91	11.52	11.90
3266	NASDAQ	CECO	Wed, May 9, 2007	12.97	13.10	11.99	12.26
3265	NASDAQ	CECO	Tue, May 8, 2007	13.50	13.62	12.44	12.56
3264	NASDAQ	CECO	Mon, May 7, 2007	13.38	13.55	13.18	13.45
3263	NASDAQ	CECO	Fri, May 4, 2007	13.98	14.21	12.82	13.58
3262	NASDAQ	CECO	Thu, May 3, 2007	13.68	14.19	13.56	13.79
3261	NASDAQ	CECO	Wed, May 2, 2007	13.90	14.02	13.60	13.71
3260	NASDAQ	CECO	Tue, May 1, 2007	14.10	14.24	13.55	13.81
3259	NASDAQ	CECO	Mon, Apr 30, 2007	14.01	14.41	13.94	14.05
3258	NASDAQ	CECO	Fri, Apr 27, 2007	13.93	14.02	13.76	13.93
3257	NASDAQ	CECO	Thu, Apr 26, 2007	14.24	14.24	13.83	13.98
3256	NASDAQ	CECO	Wed, Apr 25, 2007	14.31	14.31	13.77	14.23
3255	NASDAQ	CECO	Tue, Apr 24, 2007	14.24	14.44	13.91	14.18
3254	NASDAQ	CECO	Mon, Apr 23, 2007	13.73	14.17	13.40	14.07
3253	NASDAQ	CECO	Fri, Apr 20, 2007	14.17	14.18	13.42	13.63
3252	NASDAQ	CECO	Thu, Apr 19, 2007	14.04	14.04	13.63	13.91
3251	NASDAQ	CECO	Wed, Apr 18, 2007	14.07	14.07	13.52	14.05
3250	NASDAQ	CECO	Tue, Apr 17, 2007	13.45	14.08	13.43	13.62
3249	NASDAQ	CECO	Mon, Apr 16, 2007	13.91	14.02	13.38	13.48
3248	NASDAQ	CECO	Fri, Apr 13, 2007	13.65	14.36	13.47	13.86
3247	NASDAQ	CECO	Thu, Apr 12, 2007	12.97	14.14	12.61	13.94
3246	NASDAQ	CECO	Wed, Apr 11, 2007	14.10	14.54	14.08	14.25
3245	NASDAQ	CECO	Tue, Apr 10, 2007	14.89	15.08	14.01	14.05
3244	NASDAQ	CECO	Mon, Apr 9, 2007	14.61	14.95	14.35	14.80
3243	NASDAQ	CECO	Thu, Apr 5, 2007	13.52	14.50	13.52	14.47
3242	NASDAQ	CECO	Wed, Apr 4, 2007	13.14	13.74	12.76	13.50
3241	NASDAQ	CECO	Tue, Apr 3, 2007	12.30	13.32	12.30	13.15
3240	NASDAQ	CECO	Mon, Apr 2, 2007	12.56	12.99	12.02	12.32
3239	NASDAQ	CECO	Fri, Mar 30, 2007	12.15	12.60	11.33	12.49
3238	NASDAQ	CECO	Thu, Mar 29, 2007	15.27	15.55	12.02	12.60
3237	NASDAQ	CECO	Wed, Mar 28, 2007	14.73	15.68	14.73	14.95
3236	NASDAQ	CECO	Tue, Mar 27, 2007	14.72	15.00	14.42	14.90
3235	NASDAQ	CECO	Mon, Mar 26, 2007	15.33	15.33	14.35	14.56
3234	NASDAQ	CECO	Fri, Mar 23, 2007	15.25	15.26	13.71	14.61
3233	NASDAQ	CECO	Thu, Mar 22, 2007	17.30	17.92	17.11	17.72
3232	NASDAQ	CECO	Wed, Mar 21, 2007	16.75	17.08	16.70	17.00
3231	NASDAQ	CECO	Tue, Mar 20, 2007	17.75	17.75	16.70	16.75
3230	NASDAQ	CECO	Mon, Mar 19, 2007	16.97	18.14	16.59	17.47
3229	NASDAQ	CECO	Fri, Mar 16, 2007	16.70	17.10	16.40	16.43
3228	NASDAQ	CECO	Thu, Mar 15, 2007	16.65	16.94	16.23	16.67
3227	NASDAQ	CECO	Wed, Mar 14, 2007	16.91	17.09	15.75	16.43
3226	NASDAQ	CECO	Tue, Mar 13, 2007	16.58	17.10	16.27	16.79
3225	NASDAQ	CECO	Mon, Mar 12, 2007	16.58	16.68	16.20	16.58
3224	NASDAQ	CECO	Fri, Mar 9, 2007	15.64	16.50	15.64	16.19
3223	NASDAQ	CECO	Thu, Mar 8, 2007	15.11	16.73	15.11	15.40
3222	NASDAQ	CECO	Wed, Mar 7, 2007	14.69	15.26	14.63	14.99
3221	NASDAQ	CECO	Tue, Mar 6, 2007	14.50	15.05	14.21	15.00
3220	NASDAQ	CECO	Mon, Mar 5, 2007	14.71	14.73	14.17	14.17
3219	NASDAQ	CECO	Fri, Mar 2, 2007	15.27	15.71	14.98	14.98
3218	NASDAQ	CECO	Thu, Mar 1, 2007	15.84	15.88	15.00	15.73
3217	NASDAQ	CECO	Wed, Feb 28, 2007	14.94	16.31	14.91	15.82
3216	NASDAQ	CECO	Tue, Feb 27, 2007	17.25	17.49	14.29	14.87
3215	NASDAQ	CECO	Mon, Feb 26, 2007	17.27	18.00	16.46	17.32
3214	NASDAQ	CECO	Fri, Feb 23, 2007	16.89	16.89	15.83	16.46
3213	NASDAQ	CECO	Thu, Feb 22, 2007	17.18	17.76	16.00	16.66
3212	NASDAQ	CECO	Wed, Feb 21, 2007	14.74	17.01	14.74	16.96
3211	NASDAQ	CECO	Tue, Feb 20, 2007	14.43	14.75	14.20	14.73
3210	NASDAQ	CECO	Fri, Feb 16, 2007	14.81	14.91	14.30	14.46
3209	NASDAQ	CECO	Thu, Feb 15, 2007	14.75	14.75	14.13	14.47
3208	NASDAQ	CECO	Wed, Feb 14, 2007	13.76	14.81	13.11	14.66
3207	NASDAQ	CECO	Tue, Feb 13, 2007	14.93	14.98	13.81	13.95
3206	NASDAQ	CECO	Mon, Feb 12, 2007	15.28	15.28	14.75	14.93
3205	NASDAQ	CECO	Fri, Feb 9, 2007	14.99	15.59	14.80	14.96
3204	NASDAQ	CECO	Thu, Feb 8, 2007	14.78	15.00	14.30	15.00
3203	NASDAQ	CECO	Wed, Feb 7, 2007	14.87	15.00	14.55	14.56
3202	NASDAQ	CECO	Tue, Feb 6, 2007	14.99	15.00	14.18	14.53
3201	NASDAQ	CECO	Mon, Feb 5, 2007	13.89	15.17	13.89	14.90
3200	NASDAQ	CECO	Fri, Feb 2, 2007	13.41	13.88	13.32	13.87
3199	NASDAQ	CECO	Thu, Feb 1, 2007	13.82	13.89	13.31	13.41
3198	NASDAQ	CECO	Wed, Jan 31, 2007	13.89	13.89	13.59	13.79
3197	NASDAQ	CECO	Tue, Jan 30, 2007	13.98	14.02	13.62	13.86
3196	NASDAQ	CECO	Mon, Jan 29, 2007	13.48	14.23	13.27	13.92
3195	NASDAQ	CECO	Fri, Jan 26, 2007	13.64	13.64	13.30	13.40
3194	NASDAQ	CECO	Thu, Jan 25, 2007	12.94	13.88	12.92	13.49
3193	NASDAQ	CECO	Wed, Jan 24, 2007	13.10	13.10	12.55	13.04
3192	NASDAQ	CECO	Tue, Jan 23, 2007	13.11	13.64	12.82	13.00
3191	NASDAQ	CECO	Mon, Jan 22, 2007	11.50	13.25	11.50	12.98
3190	NASDAQ	CECO	Fri, Jan 19, 2007	11.40	11.59	11.37	11.50
3189	NASDAQ	CECO	Thu, Jan 18, 2007	11.45	11.68	11.26	11.37
3188	NASDAQ	CECO	Wed, Jan 17, 2007	11.09	11.50	11.00	11.45
3187	NASDAQ	CECO	Tue, Jan 16, 2007	10.30	11.10	9.94	11.09
3186	NASDAQ	CECO	Fri, Jan 12, 2007	10.36	10.36	9.98	10.23
3185	NASDAQ	CECO	Thu, Jan 11, 2007	10.20	10.39	10.03	10.24
3184	NASDAQ	CECO	Wed, Jan 10, 2007	10.35	10.40	10.11	10.25
3183	NASDAQ	CECO	Tue, Jan 9, 2007	10.35	10.41	10.08	10.35
3182	NASDAQ	CECO	Mon, Jan 8, 2007	9.86	10.47	9.77	10.33
3181	NASDAQ	CECO	Fri, Jan 5, 2007	9.91	10.04	9.85	9.89
3180	NASDAQ	CECO	Thu, Jan 4, 2007	10.09	10.15	9.75	9.93
3179	NASDAQ	CECO	Wed, Jan 3, 2007	10.56	10.80	9.50	9.85
3178	NASDAQ	CECO	Fri, Dec 29, 2006	9.09	9.10	8.86	8.97
3177	NASDAQ	CECO	Thu, Dec 28, 2006	8.84	9.07	8.77	9.07
3176	NASDAQ	CECO	Wed, Dec 27, 2006	8.72	8.96	8.64	8.95
3175	NASDAQ	CECO	Tue, Dec 26, 2006	9.09	9.10	8.81	8.96
3174	NASDAQ	CECO	Fri, Dec 22, 2006	8.43	9.01	8.43	9.00
3173	NASDAQ	CECO	Thu, Dec 21, 2006	8.21	8.46	7.60	8.46
3172	NASDAQ	CECO	Wed, Dec 20, 2006	8.64	8.85	8.06	8.12
3171	NASDAQ	CECO	Tue, Dec 19, 2006	8.85	8.88	8.63	8.85
3170	NASDAQ	CECO	Mon, Dec 18, 2006	9.01	9.01	8.77	8.86
3169	NASDAQ	CECO	Fri, Dec 15, 2006	9.04	9.04	8.80	8.90
3168	NASDAQ	CECO	Thu, Dec 14, 2006	9.16	9.16	9.00	9.03
3167	NASDAQ	CECO	Wed, Dec 13, 2006	9.05	9.22	9.05	9.18
3166	NASDAQ	CECO	Tue, Dec 12, 2006	9.03	9.15	9.00	9.11
3165	NASDAQ	CECO	Mon, Dec 11, 2006	9.14	9.15	9.00	9.03
3164	NASDAQ	CECO	Fri, Dec 8, 2006	9.05	9.15	9.04	9.08
3163	NASDAQ	CECO	Thu, Dec 7, 2006	9.14	9.15	9.07	9.10
3162	NASDAQ	CECO	Wed, Dec 6, 2006	9.17	9.17	9.05	9.07
3161	NASDAQ	CECO	Tue, Dec 5, 2006	8.90	9.09	8.80	9.03
3160	NASDAQ	CECO	Mon, Dec 4, 2006	8.89	8.96	8.69	8.90
3159	NASDAQ	CECO	Fri, Dec 1, 2006	8.98	9.05	8.95	8.95
3158	NASDAQ	CECO	Thu, Nov 30, 2006	8.75	9.05	8.69	8.95
3157	NASDAQ	CECO	Wed, Nov 29, 2006	9.10	9.10	8.85	8.95
3156	NASDAQ	CECO	Tue, Nov 28, 2006	8.94	9.03	8.80	8.98
3155	NASDAQ	CECO	Mon, Nov 27, 2006	9.07	9.07	8.80	8.94
3154	NASDAQ	CECO	Fri, Nov 24, 2006	9.12	9.19	8.95	9.07
3153	NASDAQ	CECO	Wed, Nov 22, 2006	9.33	9.33	9.14	9.28
3152	NASDAQ	CECO	Tue, Nov 21, 2006	9.19	9.33	9.05	9.30
3151	NASDAQ	CECO	Mon, Nov 20, 2006	9.10	9.34	9.02	9.19
3150	NASDAQ	CECO	Fri, Nov 17, 2006	9.29	9.35	9.10	9.29
3149	NASDAQ	CECO	Thu, Nov 16, 2006	9.32	9.32	9.10	9.29
3148	NASDAQ	CECO	Wed, Nov 15, 2006	9.30	9.37	9.07	9.20
3147	NASDAQ	CECO	Tue, Nov 14, 2006	9.05	9.16	9.01	9.16
3146	NASDAQ	CECO	Mon, Nov 13, 2006	9.37	9.50	9.12	9.14
3145	NASDAQ	CECO	Fri, Nov 10, 2006	8.95	9.30	8.74	9.29
3144	NASDAQ	CECO	Thu, Nov 9, 2006	10.00	10.21	8.90	9.13
3143	NASDAQ	CECO	Wed, Nov 8, 2006	10.60	11.18	10.37	10.74
3142	NASDAQ	CECO	Tue, Nov 7, 2006	10.34	10.55	10.25	10.52
3141	NASDAQ	CECO	Mon, Nov 6, 2006	10.08	10.35	10.08	10.25
3140	NASDAQ	CECO	Fri, Nov 3, 2006	9.96	10.00	9.85	10.00
3139	NASDAQ	CECO	Thu, Nov 2, 2006	9.78	10.00	9.25	9.86
3138	NASDAQ	CECO	Wed, Nov 1, 2006	10.35	10.35	9.80	9.85
3137	NASDAQ	CECO	Tue, Oct 31, 2006	10.16	10.34	9.82	10.25
3136	NASDAQ	CECO	Mon, Oct 30, 2006	10.35	10.35	10.06	10.25
3135	NASDAQ	CECO	Fri, Oct 27, 2006	10.19	10.32	10.05	10.21
3134	NASDAQ	CECO	Thu, Oct 26, 2006	10.20	10.20	10.11	10.12
3133	NASDAQ	CECO	Wed, Oct 25, 2006	9.86	10.09	9.58	10.09
3132	NASDAQ	CECO	Tue, Oct 24, 2006	10.10	10.12	9.90	9.92
3131	NASDAQ	CECO	Mon, Oct 23, 2006	10.12	10.27	10.00	10.05
3130	NASDAQ	CECO	Fri, Oct 20, 2006	10.35	10.43	10.20	10.35
3129	NASDAQ	CECO	Thu, Oct 19, 2006	10.30	10.55	10.01	10.48
3128	NASDAQ	CECO	Wed, Oct 18, 2006	10.61	10.67	10.30	10.43
3127	NASDAQ	CECO	Tue, Oct 17, 2006	10.75	10.75	10.55	10.61
3126	NASDAQ	CECO	Mon, Oct 16, 2006	10.68	10.85	10.48	10.79
3125	NASDAQ	CECO	Fri, Oct 13, 2006	10.47	10.61	10.37	10.52
3124	NASDAQ	CECO	Thu, Oct 12, 2006	10.13	10.68	10.13	10.41
3123	NASDAQ	CECO	Wed, Oct 11, 2006	10.33	10.33	10.08	10.08
3122	NASDAQ	CECO	Tue, Oct 10, 2006	10.10	10.69	9.98	10.24
3121	NASDAQ	CECO	Mon, Oct 9, 2006	9.78	9.80	9.60	9.80
3120	NASDAQ	CECO	Fri, Oct 6, 2006	9.86	9.86	9.44	9.63
3119	NASDAQ	CECO	Thu, Oct 5, 2006	9.35	9.83	9.34	9.74
3118	NASDAQ	CECO	Wed, Oct 4, 2006	9.23	9.34	9.23	9.33
3117	NASDAQ	CECO	Tue, Oct 3, 2006	9.35	9.35	9.17	9.23
3116	NASDAQ	CECO	Mon, Oct 2, 2006	9.35	9.50	9.24	9.40
3115	NASDAQ	CECO	Fri, Sep 29, 2006	9.20	9.50	8.99	9.27
3114	NASDAQ	CECO	Thu, Sep 28, 2006	9.59	9.59	8.68	9.18
3113	NASDAQ	CECO	Wed, Sep 27, 2006	9.83	9.83	9.50	9.50
3112	NASDAQ	CECO	Tue, Sep 26, 2006	9.53	9.83	9.53	9.66
3111	NASDAQ	CECO	Mon, Sep 25, 2006	9.95	10.00	9.50	9.60
3110	NASDAQ	CECO	Fri, Sep 22, 2006	10.30	10.32	9.50	9.78
3109	NASDAQ	CECO	Thu, Sep 21, 2006	10.64	10.86	10.30	10.32
3108	NASDAQ	CECO	Wed, Sep 20, 2006	10.50	10.65	10.34	10.43
3107	NASDAQ	CECO	Tue, Sep 19, 2006	10.70	10.90	10.25	10.45
3106	NASDAQ	CECO	Mon, Sep 18, 2006	10.41	10.96	10.35	10.66
3105	NASDAQ	CECO	Fri, Sep 15, 2006	10.20	10.36	10.00	10.28
3104	NASDAQ	CECO	Thu, Sep 14, 2006	9.85	10.39	9.85	10.18
3103	NASDAQ	CECO	Wed, Sep 13, 2006	9.92	10.00	9.80	9.88
3102	NASDAQ	CECO	Tue, Sep 12, 2006	9.78	10.24	9.78	10.00
3101	NASDAQ	CECO	Mon, Sep 11, 2006	10.00	10.45	9.76	10.09
3100	NASDAQ	CECO	Fri, Sep 8, 2006	10.10	10.10	9.70	10.00
3099	NASDAQ	CECO	Thu, Sep 7, 2006	9.87	10.30	9.85	10.07
3098	NASDAQ	CECO	Wed, Sep 6, 2006	10.40	10.40	9.65	9.66
3097	NASDAQ	CECO	Tue, Sep 5, 2006	9.70	10.40	9.60	10.16
3096	NASDAQ	CECO	Fri, Sep 1, 2006	8.77	9.68	8.77	9.60
3095	NASDAQ	CECO	Thu, Aug 31, 2006	8.92	9.05	8.54	8.94
3094	NASDAQ	CECO	Wed, Aug 30, 2006	8.71	9.02	8.71	8.95
3093	NASDAQ	CECO	Tue, Aug 29, 2006	8.68	8.74	8.67	8.74
3092	NASDAQ	CECO	Mon, Aug 28, 2006	8.60	8.60	8.00	8.60
3091	NASDAQ	CECO	Fri, Aug 25, 2006	9.02	9.02	8.69	8.73
3090	NASDAQ	CECO	Thu, Aug 24, 2006	8.51	8.94	8.33	8.94
3089	NASDAQ	CECO	Wed, Aug 23, 2006	8.21	8.36	8.15	8.35
3088	NASDAQ	CECO	Tue, Aug 22, 2006	7.91	8.14	7.71	8.02
3087	NASDAQ	CECO	Mon, Aug 21, 2006	8.14	8.32	7.94	7.95
3086	NASDAQ	CECO	Fri, Aug 18, 2006	8.23	8.44	8.05	8.07
3085	NASDAQ	CECO	Thu, Aug 17, 2006	8.00	8.30	7.98	8.20
3084	NASDAQ	CECO	Wed, Aug 16, 2006	7.73	7.87	7.42	7.76
3083	NASDAQ	CECO	Tue, Aug 15, 2006	7.42	7.72	7.41	7.45
3082	NASDAQ	CECO	Mon, Aug 14, 2006	7.80	7.80	7.25	7.41
3081	NASDAQ	CECO	Fri, Aug 11, 2006	9.00	9.00	7.76	7.76
3080	NASDAQ	CECO	Thu, Aug 10, 2006	8.70	8.80	8.70	8.77
3079	NASDAQ	CECO	Wed, Aug 9, 2006	9.00	9.04	8.71	8.73
3078	NASDAQ	CECO	Tue, Aug 8, 2006	8.70	8.86	8.70	8.73
3077	NASDAQ	CECO	Mon, Aug 7, 2006	8.75	8.83	8.70	8.70
3076	NASDAQ	CECO	Fri, Aug 4, 2006	8.73	9.06	8.59	8.75
3075	NASDAQ	CECO	Thu, Aug 3, 2006	8.81	9.12	8.01	8.99
3074	NASDAQ	CECO	Wed, Aug 2, 2006	8.97	9.10	8.70	8.84
3073	NASDAQ	CECO	Tue, Aug 1, 2006	8.66	9.00	8.66	8.98
3072	NASDAQ	CECO	Mon, Jul 31, 2006	8.48	8.90	8.48	8.76
3071	NASDAQ	CECO	Fri, Jul 28, 2006	8.58	8.86	8.46	8.46
3070	NASDAQ	CECO	Thu, Jul 27, 2006	8.70	8.85	8.37	8.37
3069	NASDAQ	CECO	Wed, Jul 26, 2006	7.88	8.70	7.88	8.69
3068	NASDAQ	CECO	Tue, Jul 25, 2006	7.39	8.03	7.39	8.00
3067	NASDAQ	CECO	Mon, Jul 24, 2006	7.45	7.79	7.21	7.45
3066	NASDAQ	CECO	Fri, Jul 21, 2006	7.45	7.85	7.27	7.44
3065	NASDAQ	CECO	Thu, Jul 20, 2006	7.37	7.53	7.37	7.39
3064	NASDAQ	CECO	Wed, Jul 19, 2006	7.25	7.51	7.21	7.37
3063	NASDAQ	CECO	Tue, Jul 18, 2006	7.30	7.30	6.95	7.24
3062	NASDAQ	CECO	Mon, Jul 17, 2006	7.80	7.85	7.09	7.23
3061	NASDAQ	CECO	Fri, Jul 14, 2006	8.18	8.18	7.68	7.85
3060	NASDAQ	CECO	Thu, Jul 13, 2006	8.10	8.40	7.78	8.22
3059	NASDAQ	CECO	Wed, Jul 12, 2006	8.62	8.62	8.07	8.20
3058	NASDAQ	CECO	Tue, Jul 11, 2006	8.70	8.70	7.92	8.58
3057	NASDAQ	CECO	Mon, Jul 10, 2006	8.64	8.70	8.40	8.70
3056	NASDAQ	CECO	Fri, Jul 7, 2006	8.40	8.47	8.21	8.43
3055	NASDAQ	CECO	Thu, Jul 6, 2006	7.86	8.17	7.81	8.03
3054	NASDAQ	CECO	Wed, Jul 5, 2006	7.95	7.99	7.70	7.95
3053	NASDAQ	CECO	Mon, Jul 3, 2006	8.34	8.59	7.76	7.96
3052	NASDAQ	CECO	Fri, Jun 30, 2006	7.87	8.03	7.79	8.00
3051	NASDAQ	CECO	Thu, Jun 29, 2006	8.00	8.00	6.78	7.69
3050	NASDAQ	CECO	Wed, Jun 28, 2006	7.80	7.92	7.56	7.57
3049	NASDAQ	CECO	Tue, Jun 27, 2006	7.76	7.86	7.70	7.72
3048	NASDAQ	CECO	Mon, Jun 26, 2006	7.62	8.08	7.41	7.70
3047	NASDAQ	CECO	Fri, Jun 23, 2006	7.38	7.80	7.27	7.65
3046	NASDAQ	CECO	Thu, Jun 22, 2006	7.45	7.64	7.18	7.45
3045	NASDAQ	CECO	Wed, Jun 21, 2006	7.53	7.60	7.20	7.30
3044	NASDAQ	CECO	Tue, Jun 20, 2006	7.73	7.96	7.50	7.56
3043	NASDAQ	CECO	Mon, Jun 19, 2006	7.82	7.90	7.75	7.75
3042	NASDAQ	CECO	Fri, Jun 16, 2006	7.86	8.13	7.68	7.95
3041	NASDAQ	CECO	Thu, Jun 15, 2006	8.20	8.20	7.81	7.95
3040	NASDAQ	CECO	Wed, Jun 14, 2006	7.76	7.98	7.65	7.89
3039	NASDAQ	CECO	Tue, Jun 13, 2006	7.79	8.10	7.67	7.75
3038	NASDAQ	CECO	Mon, Jun 12, 2006	7.57	7.99	7.21	7.50
3037	NASDAQ	CECO	Fri, Jun 9, 2006	7.34	7.99	7.09	7.60
3036	NASDAQ	CECO	Thu, Jun 8, 2006	7.47	7.47	7.00	7.38
3035	NASDAQ	CECO	Wed, Jun 7, 2006	7.74	8.29	7.50	7.55
3034	NASDAQ	CECO	Tue, Jun 6, 2006	8.08	8.34	7.47	7.65
3033	NASDAQ	CECO	Mon, Jun 5, 2006	7.82	8.12	7.80	8.00
3032	NASDAQ	CECO	Fri, Jun 2, 2006	8.60	8.61	7.98	8.21
3031	NASDAQ	CECO	Thu, Jun 1, 2006	8.44	8.79	8.44	8.52
3030	NASDAQ	CECO	Wed, May 31, 2006	8.88	8.97	8.55	8.71
3029	NASDAQ	CECO	Tue, May 30, 2006	8.72	9.10	8.31	8.79
3028	NASDAQ	CECO	Fri, May 26, 2006	7.71	8.76	7.51	8.62
3027	NASDAQ	CECO	Thu, May 25, 2006	7.23	7.79	7.11	7.60
3026	NASDAQ	CECO	Wed, May 24, 2006	7.68	7.68	6.86	7.18
3025	NASDAQ	CECO	Tue, May 23, 2006	8.01	8.27	7.36	7.54
3024	NASDAQ	CECO	Mon, May 22, 2006	8.03	8.32	7.60	7.96
3023	NASDAQ	CECO	Fri, May 19, 2006	9.20	9.20	7.65	7.94
3022	NASDAQ	CECO	Thu, May 18, 2006	9.49	9.69	9.10	9.29
3021	NASDAQ	CECO	Wed, May 17, 2006	9.75	9.76	9.21	9.49
3020	NASDAQ	CECO	Tue, May 16, 2006	9.83	9.98	9.44	9.69
3019	NASDAQ	CECO	Mon, May 15, 2006	9.51	10.00	9.30	9.70
3018	NASDAQ	CECO	Fri, May 12, 2006	9.37	9.89	8.86	9.65
3017	NASDAQ	CECO	Thu, May 11, 2006	10.00	10.29	9.36	9.44
3016	NASDAQ	CECO	Wed, May 10, 2006	10.46	10.46	9.88	10.00
3015	NASDAQ	CECO	Tue, May 9, 2006	10.64	10.87	10.00	10.36
3014	NASDAQ	CECO	Mon, May 8, 2006	10.32	10.42	10.03	10.28
3013	NASDAQ	CECO	Fri, May 5, 2006	10.50	10.75	10.00	10.20
3012	NASDAQ	CECO	Thu, May 4, 2006	11.13	11.25	10.34	10.46
3011	NASDAQ	CECO	Wed, May 3, 2006	10.80	11.27	10.50	11.06
3010	NASDAQ	CECO	Tue, May 2, 2006	9.22	11.10	9.20	10.80
3009	NASDAQ	CECO	Mon, May 1, 2006	9.65	9.80	8.83	9.22
3008	NASDAQ	CECO	Fri, Apr 28, 2006	10.29	10.35	9.88	9.90
3007	NASDAQ	CECO	Thu, Apr 27, 2006	10.18	10.65	9.33	10.34
3006	NASDAQ	CECO	Wed, Apr 26, 2006	10.83	11.12	10.02	10.09
3005	NASDAQ	CECO	Tue, Apr 25, 2006	11.80	11.83	10.87	10.91
3004	NASDAQ	CECO	Mon, Apr 24, 2006	12.29	12.29	11.80	11.90
3003	NASDAQ	CECO	Fri, Apr 21, 2006	12.45	12.50	11.79	12.25
3002	NASDAQ	CECO	Thu, Apr 20, 2006	12.17	12.93	12.00	12.45
3001	NASDAQ	CECO	Wed, Apr 19, 2006	11.00	12.33	11.00	12.12
3000	NASDAQ	CECO	Tue, Apr 18, 2006	10.89	10.89	10.00	10.89
2999	NASDAQ	CECO	Mon, Apr 17, 2006	10.90	11.00	10.00	10.69
2998	NASDAQ	CECO	Thu, Apr 13, 2006	10.75	10.84	10.33	10.81
2997	NASDAQ	CECO	Wed, Apr 12, 2006	10.20	10.38	9.96	10.33
2996	NASDAQ	CECO	Tue, Apr 11, 2006	9.93	10.50	9.93	10.10
2995	NASDAQ	CECO	Mon, Apr 10, 2006	9.49	10.20	9.25	9.86
2994	NASDAQ	CECO	Fri, Apr 7, 2006	9.19	9.21	8.71	9.15
2993	NASDAQ	CECO	Thu, Apr 6, 2006	8.65	9.29	8.20	9.12
2992	NASDAQ	CECO	Wed, Apr 5, 2006	8.90	8.96	8.61	8.69
2991	NASDAQ	CECO	Tue, Apr 4, 2006	8.99	9.00	8.67	8.98
2990	NASDAQ	CECO	Mon, Apr 3, 2006	8.81	8.99	8.40	8.99
2989	NASDAQ	CECO	Fri, Mar 31, 2006	8.91	9.05	8.50	8.77
2988	NASDAQ	CECO	Thu, Mar 30, 2006	8.92	9.16	8.50	8.91
2987	NASDAQ	CECO	Wed, Mar 29, 2006	9.02	9.02	8.53	8.97
2986	NASDAQ	CECO	Tue, Mar 28, 2006	9.70	9.70	7.91	9.05
2985	NASDAQ	CECO	Mon, Mar 27, 2006	9.51	9.98	9.30	9.43
2984	NASDAQ	CECO	Fri, Mar 24, 2006	9.50	9.69	9.11	9.55
2983	NASDAQ	CECO	Thu, Mar 23, 2006	9.09	10.00	9.09	9.30
2982	NASDAQ	CECO	Wed, Mar 22, 2006	8.86	9.32	8.80	9.10
2981	NASDAQ	CECO	Tue, Mar 21, 2006	9.35	9.35	8.81	8.91
2980	NASDAQ	CECO	Mon, Mar 20, 2006	9.10	9.31	9.01	9.26
2979	NASDAQ	CECO	Fri, Mar 17, 2006	9.25	9.25	8.85	9.13
2978	NASDAQ	CECO	Thu, Mar 16, 2006	8.13	9.60	8.13	9.22
2977	NASDAQ	CECO	Wed, Mar 15, 2006	8.10	8.25	7.97	8.14
2976	NASDAQ	CECO	Tue, Mar 14, 2006	8.57	8.57	8.20	8.30
2975	NASDAQ	CECO	Mon, Mar 13, 2006	8.25	8.45	8.25	8.25
2974	NASDAQ	CECO	Fri, Mar 10, 2006	8.27	8.57	8.15	8.18
2973	NASDAQ	CECO	Thu, Mar 9, 2006	8.67	8.86	8.24	8.31
2972	NASDAQ	CECO	Wed, Mar 8, 2006	7.99	8.69	7.65	8.25
2971	NASDAQ	CECO	Tue, Mar 7, 2006	7.50	7.99	7.50	7.85
2970	NASDAQ	CECO	Mon, Mar 6, 2006	7.45	7.75	7.45	7.45
2969	NASDAQ	CECO	Fri, Mar 3, 2006	7.08	7.80	7.08	7.80
2968	NASDAQ	CECO	Thu, Mar 2, 2006	7.98	7.98	6.90	7.55
2967	NASDAQ	CECO	Wed, Mar 1, 2006	7.98	7.98	7.70	7.84
2966	NASDAQ	CECO	Tue, Feb 28, 2006	7.98	7.98	7.62	7.79
2965	NASDAQ	CECO	Mon, Feb 27, 2006	7.95	8.15	7.80	7.95
2964	NASDAQ	CECO	Fri, Feb 24, 2006	7.74	7.93	7.70	7.78
2963	NASDAQ	CECO	Thu, Feb 23, 2006	7.78	8.07	7.70	7.70
2962	NASDAQ	CECO	Wed, Feb 22, 2006	7.68	7.79	7.55	7.75
2961	NASDAQ	CECO	Tue, Feb 21, 2006	7.33	7.60	7.10	7.60
2960	NASDAQ	CECO	Fri, Feb 17, 2006	7.27	7.27	7.10	7.16
2959	NASDAQ	CECO	Thu, Feb 16, 2006	7.75	7.75	7.25	7.28
2958	NASDAQ	CECO	Wed, Feb 15, 2006	7.00	7.80	7.00	7.44
2957	NASDAQ	CECO	Tue, Feb 14, 2006	7.10	7.25	7.06	7.06
2956	NASDAQ	CECO	Mon, Feb 13, 2006	7.40	7.47	7.10	7.14
2955	NASDAQ	CECO	Fri, Feb 10, 2006	7.16	7.44	6.85	7.34
2954	NASDAQ	CECO	Thu, Feb 9, 2006	7.79	7.85	7.08	7.20
2953	NASDAQ	CECO	Wed, Feb 8, 2006	7.50	7.84	7.47	7.67
2952	NASDAQ	CECO	Tue, Feb 7, 2006	7.10	8.10	7.05	7.40
2951	NASDAQ	CECO	Mon, Feb 6, 2006	7.33	7.33	6.81	7.14
2950	NASDAQ	CECO	Fri, Feb 3, 2006	7.20	7.20	7.00	7.02
2949	NASDAQ	CECO	Thu, Feb 2, 2006	7.10	7.40	7.02	7.13
2948	NASDAQ	CECO	Wed, Feb 1, 2006	7.40	7.44	7.11	7.16
2947	NASDAQ	CECO	Tue, Jan 31, 2006	7.00	7.50	7.00	7.40
2946	NASDAQ	CECO	Mon, Jan 30, 2006	6.40	6.90	6.40	6.85
2945	NASDAQ	CECO	Fri, Jan 27, 2006	6.41	6.46	6.31	6.33
2944	NASDAQ	CECO	Thu, Jan 26, 2006	6.60	6.76	6.36	6.36
2943	NASDAQ	CECO	Wed, Jan 25, 2006	6.65	6.68	6.42	6.48
2942	NASDAQ	CECO	Tue, Jan 24, 2006	6.69	6.79	6.50	6.55
2941	NASDAQ	CECO	Mon, Jan 23, 2006	6.62	6.80	6.27	6.50
2940	NASDAQ	CECO	Fri, Jan 20, 2006	6.36	6.50	6.36	6.50
2939	NASDAQ	CECO	Thu, Jan 19, 2006	6.40	6.90	5.95	6.27
2938	NASDAQ	CECO	Wed, Jan 18, 2006	5.82	6.08	5.75	6.05
2937	NASDAQ	CECO	Tue, Jan 17, 2006	5.95	5.95	5.75	5.84
2936	NASDAQ	CECO	Fri, Jan 13, 2006	6.16	6.16	5.98	6.03
2935	NASDAQ	CECO	Thu, Jan 12, 2006	6.49	6.49	6.16	6.27
2934	NASDAQ	CECO	Wed, Jan 11, 2006	6.57	6.57	6.25	6.39
2933	NASDAQ	CECO	Tue, Jan 10, 2006	6.23	6.66	5.96	6.57
2932	NASDAQ	CECO	Mon, Jan 9, 2006	6.21	6.21	5.81	6.17
2931	NASDAQ	CECO	Fri, Jan 6, 2006	6.47	6.47	6.12	6.21
2930	NASDAQ	CECO	Thu, Jan 5, 2006	5.99	6.60	5.99	6.31
2929	NASDAQ	CECO	Wed, Jan 4, 2006	5.65	5.91	5.65	5.91
2928	NASDAQ	CECO	Tue, Jan 3, 2006	5.68	5.78	5.61	5.65
2927	NASDAQ	CECO	Fri, Dec 30, 2005	5.70	5.74	5.66	5.74
2926	NASDAQ	CECO	Thu, Dec 29, 2005	5.84	6.03	5.65	5.86
2925	NASDAQ	CECO	Wed, Dec 28, 2005	5.92	6.00	5.83	5.93
2924	NASDAQ	CECO	Tue, Dec 27, 2005	6.00	6.01	5.71	5.92
2923	NASDAQ	CECO	Fri, Dec 23, 2005	5.87	5.96	5.62	5.91
2922	NASDAQ	CECO	Thu, Dec 22, 2005	5.84	5.86	5.48	5.86
2921	NASDAQ	CECO	Wed, Dec 21, 2005	5.78	5.93	5.78	5.90
2920	NASDAQ	CECO	Tue, Dec 20, 2005	5.72	5.92	5.47	5.84
2919	NASDAQ	CECO	Mon, Dec 19, 2005	6.25	6.25	5.81	5.90
2918	NASDAQ	CECO	Fri, Dec 16, 2005	6.15	6.39	6.15	6.22
2917	NASDAQ	CECO	Thu, Dec 15, 2005	6.00	6.18	5.72	6.18
2916	NASDAQ	CECO	Wed, Dec 14, 2005	6.70	6.70	5.73	6.08
2915	NASDAQ	CECO	Tue, Dec 13, 2005	6.50	6.70	6.34	6.65
2914	NASDAQ	CECO	Mon, Dec 12, 2005	6.55	6.69	6.15	6.32
2913	NASDAQ	CECO	Fri, Dec 9, 2005	6.96	6.98	6.55	6.63
2912	NASDAQ	CECO	Thu, Dec 8, 2005	6.96	7.20	6.38	6.80
2911	NASDAQ	CECO	Wed, Dec 7, 2005	7.11	7.64	6.79	7.02
2910	NASDAQ	CECO	Tue, Dec 6, 2005	6.85	7.36	6.75	7.11
2909	NASDAQ	CECO	Mon, Dec 5, 2005	6.40	6.84	6.30	6.79
2908	NASDAQ	CECO	Fri, Dec 2, 2005	5.95	6.50	5.63	6.35
2907	NASDAQ	CECO	Thu, Dec 1, 2005	5.27	5.90	5.20	5.90
2906	NASDAQ	CECO	Wed, Nov 30, 2005	5.14	5.25	5.11	5.21
2905	NASDAQ	CECO	Tue, Nov 29, 2005	5.23	5.25	5.16	5.16
2904	NASDAQ	CECO	Mon, Nov 28, 2005	5.05	5.25	5.04	5.22
2903	NASDAQ	CECO	Fri, Nov 25, 2005	5.19	5.19	5.10	5.10
2902	NASDAQ	CECO	Wed, Nov 23, 2005	5.25	5.25	5.07	5.17
2901	NASDAQ	CECO	Tue, Nov 22, 2005	5.04	5.25	4.95	5.25
2900	NASDAQ	CECO	Mon, Nov 21, 2005	5.12	5.12	4.82	5.04
2899	NASDAQ	CECO	Fri, Nov 18, 2005	5.02	5.22	4.77	5.05
2898	NASDAQ	CECO	Thu, Nov 17, 2005	4.55	5.05	4.41	5.00
2897	NASDAQ	CECO	Wed, Nov 16, 2005	4.40	4.61	4.35	4.55
2896	NASDAQ	CECO	Tue, Nov 15, 2005	4.50	4.50	4.34	4.36
2895	NASDAQ	CECO	Mon, Nov 14, 2005	4.70	4.70	4.22	4.45
2894	NASDAQ	CECO	Fri, Nov 11, 2005	4.25	4.47	4.25	4.45
2893	NASDAQ	CECO	Thu, Nov 10, 2005	4.34	4.42	4.19	4.29
2892	NASDAQ	CECO	Wed, Nov 9, 2005	4.11	4.34	4.11	4.34
2891	NASDAQ	CECO	Tue, Nov 8, 2005	4.31	4.34	4.18	4.34
2890	NASDAQ	CECO	Mon, Nov 7, 2005	4.18	4.30	4.15	4.30
2889	NASDAQ	CECO	Fri, Nov 4, 2005	4.36	4.36	4.32	4.32
2888	NASDAQ	CECO	Thu, Nov 3, 2005	4.61	4.61	4.07	4.36
2887	NASDAQ	CECO	Wed, Nov 2, 2005	4.60	4.75	4.56	4.70
2886	NASDAQ	CECO	Tue, Nov 1, 2005	4.70	4.70	4.58	4.58
2885	NASDAQ	CECO	Mon, Oct 31, 2005	4.63	4.63	4.60	4.60
2884	NASDAQ	CECO	Fri, Oct 28, 2005	4.44	4.48	4.43	4.44
2883	NASDAQ	CECO	Thu, Oct 27, 2005	4.61	4.61	4.40	4.40
2882	NASDAQ	CECO	Wed, Oct 26, 2005	4.73	4.98	4.57	4.57
2881	NASDAQ	CECO	Tue, Oct 25, 2005	4.46	4.58	4.45	4.58
2880	NASDAQ	CECO	Mon, Oct 24, 2005	4.45	4.50	4.30	4.50
2879	NASDAQ	CECO	Fri, Oct 21, 2005	4.31	4.45	4.30	4.45
2878	NASDAQ	CECO	Thu, Oct 20, 2005	4.40	4.43	4.31	4.40
2877	NASDAQ	CECO	Wed, Oct 19, 2005	4.39	4.45	4.35	4.40
2876	NASDAQ	CECO	Tue, Oct 18, 2005	4.40	4.45	4.25	4.30
2875	NASDAQ	CECO	Mon, Oct 17, 2005	4.27	4.50	4.20	4.45
2874	NASDAQ	CECO	Fri, Oct 14, 2005	4.34	4.48	4.22	4.40
2873	NASDAQ	CECO	Thu, Oct 13, 2005	4.47	4.47	4.34	4.34
2872	NASDAQ	CECO	Wed, Oct 12, 2005	4.36	4.38	4.18	4.34
2871	NASDAQ	CECO	Tue, Oct 11, 2005	4.39	4.52	4.17	4.36
2870	NASDAQ	CECO	Mon, Oct 10, 2005	4.30	4.31	4.17	4.25
2869	NASDAQ	CECO	Fri, Oct 7, 2005	4.50	4.50	4.35	4.47
2868	NASDAQ	CECO	Thu, Oct 6, 2005	4.70	4.70	4.43	4.49
2867	NASDAQ	CECO	Wed, Oct 5, 2005	4.34	4.68	4.31	4.68
2866	NASDAQ	CECO	Tue, Oct 4, 2005	4.32	4.50	4.32	4.47
2865	NASDAQ	CECO	Mon, Oct 3, 2005	4.40	4.42	4.40	4.40
2864	NASDAQ	CECO	Fri, Sep 30, 2005	4.39	4.39	4.35	4.35
2863	NASDAQ	CECO	Thu, Sep 29, 2005	4.28	4.40	4.28	4.40
2862	NASDAQ	CECO	Wed, Sep 28, 2005	4.42	4.42	4.33	4.33
2861	NASDAQ	CECO	Tue, Sep 27, 2005	4.36	4.42	4.20	4.40
2860	NASDAQ	CECO	Mon, Sep 26, 2005	4.31	4.45	4.31	4.40
2859	NASDAQ	CECO	Fri, Sep 23, 2005	4.29	4.33	4.12	4.33
2858	NASDAQ	CECO	Thu, Sep 22, 2005	4.18	4.38	4.18	4.31
2857	NASDAQ	CECO	Wed, Sep 21, 2005	4.40	4.48	4.20	4.40
2856	NASDAQ	CECO	Tue, Sep 20, 2005	3.89	4.34	3.89	4.33
2855	NASDAQ	CECO	Mon, Sep 19, 2005	4.11	4.29	3.69	3.99
2854	NASDAQ	CECO	Fri, Sep 16, 2005	4.27	4.28	4.11	4.26
2853	NASDAQ	CECO	Thu, Sep 15, 2005	4.15	4.40	4.15	4.28
2852	NASDAQ	CECO	Wed, Sep 14, 2005	4.45	4.51	4.30	4.36
2851	NASDAQ	CECO	Tue, Sep 13, 2005	4.40	4.40	4.17	4.18
2850	NASDAQ	CECO	Mon, Sep 12, 2005	4.45	4.45	4.19	4.35
2849	NASDAQ	CECO	Fri, Sep 9, 2005	4.25	4.45	4.17	4.27
2848	NASDAQ	CECO	Thu, Sep 8, 2005	4.19	4.19	4.02	4.10
2847	NASDAQ	CECO	Wed, Sep 7, 2005	4.10	4.12	4.06	4.10
2846	NASDAQ	CECO	Tue, Sep 6, 2005	3.90	4.20	3.90	4.11
2845	NASDAQ	CECO	Fri, Sep 2, 2005	4.04	4.13	3.89	4.07
2844	NASDAQ	CECO	Thu, Sep 1, 2005	4.16	4.17	3.73	4.05
2843	NASDAQ	CECO	Wed, Aug 31, 2005	4.23	4.23	3.87	4.15
2842	NASDAQ	CECO	Tue, Aug 30, 2005	4.24	4.24	3.97	4.10
2841	NASDAQ	CECO	Mon, Aug 29, 2005	4.11	4.25	3.96	4.06
2840	NASDAQ	CECO	Fri, Aug 26, 2005	4.05	4.40	4.05	4.19
2839	NASDAQ	CECO	Thu, Aug 25, 2005	4.00	4.27	3.86	4.18
2838	NASDAQ	CECO	Wed, Aug 24, 2005	3.82	4.16	3.57	3.98
2837	NASDAQ	CECO	Tue, Aug 23, 2005	3.80	3.92	3.53	3.77
2836	NASDAQ	CECO	Mon, Aug 22, 2005	3.73	3.75	3.69	3.69
2835	NASDAQ	CECO	Fri, Aug 19, 2005	3.72	3.79	3.43	3.78
2834	NASDAQ	CECO	Thu, Aug 18, 2005	3.58	3.75	3.42	3.75
2833	NASDAQ	CECO	Wed, Aug 17, 2005	3.62	3.90	3.49	3.80
2832	NASDAQ	CECO	Tue, Aug 16, 2005	3.70	3.70	3.60	3.60
2831	NASDAQ	CECO	Mon, Aug 15, 2005	3.55	3.60	3.33	3.58
2830	NASDAQ	CECO	Fri, Aug 12, 2005	3.65	3.65	3.60	3.60
2829	NASDAQ	CECO	Thu, Aug 11, 2005	3.60	3.95	3.50	3.64
2828	NASDAQ	CECO	Wed, Aug 10, 2005	3.41	3.41	3.37	3.40
2827	NASDAQ	CECO	Tue, Aug 9, 2005	3.43	3.48	3.42	3.42
2826	NASDAQ	CECO	Mon, Aug 8, 2005	3.45	3.48	3.39	3.40
2825	NASDAQ	CECO	Fri, Aug 5, 2005	3.62	3.62	3.40	3.40
2824	NASDAQ	CECO	Thu, Aug 4, 2005	3.43	3.46	3.39	3.40
2823	NASDAQ	CECO	Wed, Aug 3, 2005	3.30	3.62	3.30	3.45
2822	NASDAQ	CECO	Tue, Aug 2, 2005	3.48	3.50	3.35	3.45
2821	NASDAQ	CECO	Mon, Aug 1, 2005	3.21	3.39	3.20	3.37
2820	NASDAQ	CECO	Fri, Jul 29, 2005	3.19	3.25	3.19	3.25
2819	NASDAQ	CECO	Thu, Jul 28, 2005	3.48	3.48	3.21	3.25
2818	NASDAQ	CECO	Wed, Jul 27, 2005	3.26	3.42	3.26	3.41
2817	NASDAQ	CECO	Tue, Jul 26, 2005	3.15	3.47	3.15	3.44
2816	NASDAQ	CECO	Mon, Jul 25, 2005	3.10	3.25	3.09	3.10
2815	NASDAQ	CECO	Fri, Jul 22, 2005	3.18	3.24	2.91	3.10
2814	NASDAQ	CECO	Thu, Jul 21, 2005	3.24	3.24	3.10	3.13
2813	NASDAQ	CECO	Wed, Jul 20, 2005	3.15	3.27	2.90	3.01
2812	NASDAQ	CECO	Tue, Jul 19, 2005	2.90	3.00	2.86	2.94
2811	NASDAQ	CECO	Mon, Jul 18, 2005	2.97	2.97	2.84	2.86
2810	NASDAQ	CECO	Fri, Jul 15, 2005	2.94	2.98	2.87	2.87
2809	NASDAQ	CECO	Thu, Jul 14, 2005	2.90	2.90	2.81	2.81
2808	NASDAQ	CECO	Wed, Jul 13, 2005	2.81	2.86	2.81	2.84
2807	NASDAQ	CECO	Tue, Jul 12, 2005	2.94	3.00	2.71	2.71
2806	NASDAQ	CECO	Mon, Jul 11, 2005	2.78	3.04	2.71	2.86
2805	NASDAQ	CECO	Fri, Jul 8, 2005	2.90	2.90	2.83	2.83
2804	NASDAQ	CECO	Thu, Jul 7, 2005	2.84	2.84	2.81	2.81
2803	NASDAQ	CECO	Wed, Jul 6, 2005	2.83	2.83	2.83	2.83
2802	NASDAQ	CECO	Tue, Jul 5, 2005	2.95	2.98	2.80	2.90
2801	NASDAQ	CECO	Fri, Jul 1, 2005	2.92	2.92	2.91	2.91
2800	NASDAQ	CECO	Thu, Jun 30, 2005	2.95	3.07	2.89	3.03
2799	NASDAQ	CECO	Wed, Jun 29, 2005	3.00	3.00	3.00	3.00
2798	NASDAQ	CECO	Tue, Jun 28, 2005	3.05	3.09	2.90	3.05
2797	NASDAQ	CECO	Mon, Jun 27, 2005	3.02	3.02	3.00	3.00
2796	NASDAQ	CECO	Fri, Jun 24, 2005	3.08	3.08	3.07	3.07
2795	NASDAQ	CECO	Thu, Jun 23, 2005	3.12	3.12	3.10	3.10
2794	NASDAQ	CECO	Wed, Jun 22, 2005	3.14	3.23	3.00	3.06
2793	NASDAQ	CECO	Tue, Jun 21, 2005	3.08	3.13	2.99	3.05
2792	NASDAQ	CECO	Mon, Jun 20, 2005	3.05	3.07	2.86	3.06
2791	NASDAQ	CECO	Fri, Jun 17, 2005	2.95	3.06	2.90	3.06
2790	NASDAQ	CECO	Thu, Jun 16, 2005	2.93	2.94	2.93	2.94
2789	NASDAQ	CECO	Wed, Jun 15, 2005	2.95	3.07	2.95	3.00
2788	NASDAQ	CECO	Tue, Jun 14, 2005	3.07	3.07	2.93	2.93
2787	NASDAQ	CECO	Mon, Jun 13, 2005	3.07	3.10	3.05	3.05
2786	NASDAQ	CECO	Fri, Jun 10, 2005	3.22	3.22	3.02	3.10
2785	NASDAQ	CECO	Thu, Jun 9, 2005	3.05	3.10	3.05	3.10
2784	NASDAQ	CECO	Wed, Jun 8, 2005	2.92	3.05	2.92	3.01
2783	NASDAQ	CECO	Tue, Jun 7, 2005	2.78	2.94	2.76	2.94
2782	NASDAQ	CECO	Mon, Jun 6, 2005	2.81	2.81	2.72	2.72
2781	NASDAQ	CECO	Fri, Jun 3, 2005	2.62	2.85	2.62	2.81
2780	NASDAQ	CECO	Thu, Jun 2, 2005	2.35	2.56	2.22	2.56
2779	NASDAQ	CECO	Wed, Jun 1, 2005	2.08	2.20	2.02	2.19
2778	NASDAQ	CECO	Tue, May 31, 2005	2.23	2.30	2.23	2.24
2777	NASDAQ	CECO	Fri, May 27, 2005	2.24	2.27	2.24	2.24
2776	NASDAQ	CECO	Thu, May 26, 2005	2.21	2.30	2.20	2.25
2775	NASDAQ	CECO	Wed, May 25, 2005	2.39	2.52	2.20	2.20
2774	NASDAQ	CECO	Tue, May 24, 2005	2.21	2.29	2.21	2.27
2773	NASDAQ	CECO	Mon, May 23, 2005	2.37	2.38	2.37	2.38
2772	NASDAQ	CECO	Fri, May 20, 2005	2.44	2.50	2.25	2.30
2771	NASDAQ	CECO	Thu, May 19, 2005	2.70	2.70	2.29	2.37
2770	NASDAQ	CECO	Wed, May 18, 2005	2.40	2.50	2.16	2.26
2769	NASDAQ	CECO	Tue, May 17, 2005	2.25	2.34	2.09	2.28
2768	NASDAQ	CECO	Mon, May 16, 2005	2.40	2.76	1.86	2.33
2767	NASDAQ	CECO	Fri, May 13, 2005	3.00	3.00	2.56	2.64
2766	NASDAQ	CECO	Thu, May 12, 2005	2.75	2.75	2.74	2.74
2765	NASDAQ	CECO	Wed, May 11, 2005	2.56	2.76	2.56	2.76
2764	NASDAQ	CECO	Tue, May 10, 2005	2.89	2.89	2.83	2.83
2763	NASDAQ	CECO	Mon, May 9, 2005	2.70	2.74	2.63	2.67
2762	NASDAQ	CECO	Fri, May 6, 2005	2.56	2.68	2.56	2.62
2761	NASDAQ	CECO	Thu, May 5, 2005	2.60	2.68	2.55	2.55
2760	NASDAQ	CECO	Wed, May 4, 2005	2.42	2.75	2.42	2.67
2759	NASDAQ	CECO	Tue, May 3, 2005	2.50	2.71	2.38	2.62
2758	NASDAQ	CECO	Mon, May 2, 2005	3.00	3.00	2.65	2.70
2757	NASDAQ	CECO	Fri, Apr 29, 2005	2.86	3.00	2.85	3.00
2756	NASDAQ	CECO	Thu, Apr 28, 2005	2.93	3.06	2.85	2.85
2755	NASDAQ	CECO	Wed, Apr 27, 2005	3.05	3.10	2.90	2.90
2754	NASDAQ	CECO	Tue, Apr 26, 2005	3.06	3.11	2.96	3.04
2753	NASDAQ	CECO	Mon, Apr 25, 2005	3.18	3.18	2.85	2.89
2752	NASDAQ	CECO	Fri, Apr 22, 2005	3.00	3.10	2.85	3.10
2751	NASDAQ	CECO	Thu, Apr 21, 2005	2.87	3.05	2.85	3.04
2750	NASDAQ	CECO	Wed, Apr 20, 2005	3.15	3.21	2.82	2.82
2749	NASDAQ	CECO	Tue, Apr 19, 2005	3.35	3.35	2.85	3.10
2748	NASDAQ	CECO	Mon, Apr 18, 2005	2.90	3.40	2.45	2.86
2747	NASDAQ	CECO	Fri, Apr 15, 2005	3.34	3.34	3.01	3.06
2746	NASDAQ	CECO	Thu, Apr 14, 2005	3.35	3.60	3.08	3.08
2745	NASDAQ	CECO	Wed, Apr 13, 2005	3.05	3.52	3.05	3.26
2744	NASDAQ	CECO	Tue, Apr 12, 2005	3.01	3.16	2.95	3.05
2743	NASDAQ	CECO	Mon, Apr 11, 2005	3.15	3.20	3.09	3.19
2742	NASDAQ	CECO	Fri, Apr 8, 2005	3.21	3.21	3.20	3.20
2741	NASDAQ	CECO	Thu, Apr 7, 2005	3.40	3.40	3.27	3.30
2740	NASDAQ	CECO	Wed, Apr 6, 2005	3.50	3.50	3.14	3.29
2739	NASDAQ	CECO	Tue, Apr 5, 2005	3.00	3.40	3.00	3.40
2738	NASDAQ	CECO	Mon, Apr 4, 2005	3.24	3.25	3.08	3.08
2737	NASDAQ	CECO	Fri, Apr 1, 2005	3.53	3.53	3.10	3.25
2736	NASDAQ	CECO	Thu, Mar 31, 2005	3.23	3.54	3.00	3.36
2735	NASDAQ	CECO	Wed, Mar 30, 2005	2.99	3.40	2.99	3.23
2734	NASDAQ	CECO	Tue, Mar 29, 2005	3.21	3.35	3.03	3.05
2733	NASDAQ	CECO	Mon, Mar 28, 2005	3.44	3.55	3.36	3.36
2732	NASDAQ	CECO	Thu, Mar 24, 2005	3.49	3.59	3.22	3.44
2731	NASDAQ	CECO	Wed, Mar 23, 2005	3.56	3.65	3.45	3.59
2730	NASDAQ	CECO	Tue, Mar 22, 2005	3.73	3.82	3.58	3.82
2729	NASDAQ	CECO	Mon, Mar 21, 2005	3.72	3.75	3.53	3.66
2728	NASDAQ	CECO	Fri, Mar 18, 2005	3.80	3.90	3.69	3.85
2727	NASDAQ	CECO	Thu, Mar 17, 2005	3.25	3.81	2.66	3.81
2726	NASDAQ	CECO	Wed, Mar 16, 2005	3.88	3.88	3.51	3.65
2725	NASDAQ	CECO	Tue, Mar 15, 2005	3.72	3.87	3.71	3.84
2724	NASDAQ	CECO	Mon, Mar 14, 2005	3.80	3.82	3.70	3.82
2723	NASDAQ	CECO	Fri, Mar 11, 2005	3.88	3.93	3.67	3.79
2722	NASDAQ	CECO	Thu, Mar 10, 2005	3.62	3.92	3.60	3.72
2721	NASDAQ	CECO	Wed, Mar 9, 2005	3.66	3.80	3.65	3.80
2720	NASDAQ	CECO	Tue, Mar 8, 2005	3.96	3.96	3.72	3.75
2719	NASDAQ	CECO	Mon, Mar 7, 2005	3.99	4.00	3.92	4.00
2718	NASDAQ	CECO	Fri, Mar 4, 2005	3.96	4.05	3.93	4.05
2717	NASDAQ	CECO	Thu, Mar 3, 2005	3.70	4.00	3.68	3.99
2716	NASDAQ	CECO	Wed, Mar 2, 2005	3.80	3.81	3.79	3.81
2715	NASDAQ	CECO	Tue, Mar 1, 2005	3.77	3.85	3.77	3.85
2714	NASDAQ	CECO	Mon, Feb 28, 2005	3.52	3.83	3.52	3.83
2713	NASDAQ	CECO	Fri, Feb 25, 2005	3.73	3.82	3.73	3.82
2712	NASDAQ	CECO	Thu, Feb 24, 2005	3.78	3.80	3.74	3.74
2711	NASDAQ	CECO	Wed, Feb 23, 2005	3.61	3.87	3.53	3.83
2710	NASDAQ	CECO	Tue, Feb 22, 2005	3.78	3.78	3.58	3.72
2709	NASDAQ	CECO	Fri, Feb 18, 2005	3.70	3.79	3.70	3.79
2708	NASDAQ	CECO	Thu, Feb 17, 2005	3.85	3.85	3.75	3.78
2707	NASDAQ	CECO	Wed, Feb 16, 2005	3.84	3.86	3.51	3.83
2706	NASDAQ	CECO	Tue, Feb 15, 2005	3.90	3.94	3.76	3.80
2705	NASDAQ	CECO	Mon, Feb 14, 2005	3.53	3.89	3.53	3.80
2704	NASDAQ	CECO	Fri, Feb 11, 2005	3.86	3.89	3.60	3.82
2703	NASDAQ	CECO	Thu, Feb 10, 2005	3.81	3.86	3.70	3.86
2702	NASDAQ	CECO	Wed, Feb 9, 2005	3.71	3.92	3.29	3.84
2701	NASDAQ	CECO	Tue, Feb 8, 2005	3.86	3.86	3.75	3.79
2700	NASDAQ	CECO	Mon, Feb 7, 2005	3.80	3.88	3.80	3.84
2699	NASDAQ	CECO	Fri, Feb 4, 2005	3.76	3.76	3.76	3.76
2698	NASDAQ	CECO	Thu, Feb 3, 2005	3.81	3.92	3.75	3.76
2697	NASDAQ	CECO	Wed, Feb 2, 2005	3.90	3.90	3.76	3.76
2696	NASDAQ	CECO	Tue, Feb 1, 2005	3.82	3.87	3.75	3.85
2695	NASDAQ	CECO	Mon, Jan 31, 2005	4.10	4.10	3.83	3.89
2694	NASDAQ	CECO	Fri, Jan 28, 2005	3.93	3.93	3.66	3.90
2693	NASDAQ	CECO	Thu, Jan 27, 2005	3.91	4.01	3.85	3.93
2692	NASDAQ	CECO	Wed, Jan 26, 2005	3.75	3.91	3.75	3.91
2691	NASDAQ	CECO	Tue, Jan 25, 2005	3.91	3.95	3.77	3.81
2690	NASDAQ	CECO	Mon, Jan 24, 2005	3.89	3.95	3.76	3.76
2689	NASDAQ	CECO	Fri, Jan 21, 2005	3.77	3.97	3.76	3.88
2688	NASDAQ	CECO	Thu, Jan 20, 2005	3.87	4.00	3.76	3.90
2687	NASDAQ	CECO	Wed, Jan 19, 2005	3.86	4.01	3.76	3.76
2686	NASDAQ	CECO	Tue, Jan 18, 2005	3.89	4.15	3.88	4.00
2685	NASDAQ	CECO	Fri, Jan 14, 2005	3.90	4.08	3.78	3.90
2684	NASDAQ	CECO	Thu, Jan 13, 2005	3.80	4.11	3.79	3.90
2683	NASDAQ	CECO	Wed, Jan 12, 2005	3.77	3.82	3.63	3.77
2682	NASDAQ	CECO	Tue, Jan 11, 2005	3.72	3.98	3.71	3.77
2681	NASDAQ	CECO	Mon, Jan 10, 2005	3.43	3.72	3.43	3.62
2680	NASDAQ	CECO	Fri, Jan 7, 2005	3.50	3.71	3.50	3.66
2679	NASDAQ	CECO	Thu, Jan 6, 2005	3.33	3.77	3.33	3.58
2678	NASDAQ	CECO	Wed, Jan 5, 2005	3.53	3.58	3.40	3.42
2677	NASDAQ	CECO	Tue, Jan 4, 2005	3.97	3.97	3.52	3.63
2676	NASDAQ	CECO	Mon, Jan 3, 2005	3.48	3.97	3.48	3.75
2675	NASDAQ	CECO	Fri, Dec 31, 2004	3.42	3.55	3.32	3.44
2674	NASDAQ	CECO	Thu, Dec 30, 2004	3.42	3.66	3.40	3.48
2673	NASDAQ	CECO	Wed, Dec 29, 2004	3.32	3.55	3.32	3.41
2672	NASDAQ	CECO	Tue, Dec 28, 2004	3.35	3.67	3.35	3.65
2671	NASDAQ	CECO	Mon, Dec 27, 2004	3.40	3.48	3.32	3.47
2670	NASDAQ	CECO	Thu, Dec 23, 2004	3.38	3.48	3.38	3.48
2669	NASDAQ	CECO	Wed, Dec 22, 2004	3.50	3.50	3.30	3.45
2668	NASDAQ	CECO	Tue, Dec 21, 2004	3.51	3.67	3.47	3.50
2667	NASDAQ	CECO	Mon, Dec 20, 2004	3.67	3.70	3.46	3.57
2666	NASDAQ	CECO	Fri, Dec 17, 2004	3.31	3.65	3.31	3.56
2665	NASDAQ	CECO	Thu, Dec 16, 2004	3.57	3.69	3.55	3.68
2664	NASDAQ	CECO	Wed, Dec 15, 2004	3.83	4.00	3.64	3.65
2663	NASDAQ	CECO	Tue, Dec 14, 2004	3.36	3.84	3.36	3.84
2662	NASDAQ	CECO	Mon, Dec 13, 2004	3.27	3.49	3.27	3.41
2661	NASDAQ	CECO	Fri, Dec 10, 2004	3.18	3.39	3.10	3.33
2660	NASDAQ	CECO	Thu, Dec 9, 2004	3.29	3.30	3.17	3.30
2659	NASDAQ	CECO	Wed, Dec 8, 2004	3.23	3.30	3.23	3.29
2658	NASDAQ	CECO	Tue, Dec 7, 2004	3.54	3.54	3.07	3.25
2657	NASDAQ	CECO	Mon, Dec 6, 2004	3.54	3.54	3.35	3.35
2656	NASDAQ	CECO	Fri, Dec 3, 2004	3.40	3.62	3.35	3.52
2655	NASDAQ	CECO	Thu, Dec 2, 2004	3.55	3.55	3.42	3.42
2654	NASDAQ	CECO	Wed, Dec 1, 2004	3.61	3.61	3.37	3.43
2653	NASDAQ	CECO	Tue, Nov 30, 2004	3.70	3.94	3.40	3.51
2652	NASDAQ	CECO	Mon, Nov 29, 2004	3.57	3.80	3.57	3.64
2651	NASDAQ	CECO	Fri, Nov 26, 2004	3.45	3.70	3.41	3.70
2650	NASDAQ	CECO	Wed, Nov 24, 2004	3.56	3.56	3.22	3.42
2649	NASDAQ	CECO	Tue, Nov 23, 2004	3.79	3.79	3.46	3.60
2648	NASDAQ	CECO	Mon, Nov 22, 2004	3.23	3.60	3.23	3.46
2647	NASDAQ	CECO	Fri, Nov 19, 2004	3.28	3.30	3.21	3.27
2646	NASDAQ	CECO	Thu, Nov 18, 2004	3.23	3.29	3.05	3.29
2645	NASDAQ	CECO	Wed, Nov 17, 2004	3.30	3.30	3.00	3.17
2644	NASDAQ	CECO	Tue, Nov 16, 2004	3.14	3.14	2.75	3.10
2643	NASDAQ	CECO	Mon, Nov 15, 2004	3.01	3.09	2.80	3.08
2642	NASDAQ	CECO	Fri, Nov 12, 2004	3.41	3.53	3.02	3.03
2641	NASDAQ	CECO	Thu, Nov 11, 2004	3.41	3.71	3.20	3.39
2640	NASDAQ	CECO	Wed, Nov 10, 2004	3.55	3.70	3.28	3.47
2639	NASDAQ	CECO	Tue, Nov 9, 2004	3.75	3.75	3.22	3.45
2638	NASDAQ	CECO	Mon, Nov 8, 2004	3.02	3.88	2.81	3.46
2637	NASDAQ	CECO	Fri, Nov 5, 2004	2.90	2.99	2.80	2.93
2636	NASDAQ	CECO	Thu, Nov 4, 2004	2.82	2.82	2.72	2.79
2635	NASDAQ	CECO	Wed, Nov 3, 2004	2.90	2.90	2.61	2.75
2634	NASDAQ	CECO	Tue, Nov 2, 2004	2.70	2.86	2.60	2.71
2633	NASDAQ	CECO	Mon, Nov 1, 2004	2.46	2.74	2.46	2.68
2632	NASDAQ	CECO	Fri, Oct 29, 2004	2.98	2.98	2.41	2.90
2631	NASDAQ	CECO	Thu, Oct 28, 2004	2.74	2.84	2.60	2.84
2630	NASDAQ	CECO	Wed, Oct 27, 2004	2.92	2.92	2.66	2.79
2629	NASDAQ	CECO	Tue, Oct 26, 2004	2.78	2.93	2.70	2.87
2628	NASDAQ	CECO	Mon, Oct 25, 2004	3.08	3.08	2.79	2.79
2627	NASDAQ	CECO	Fri, Oct 22, 2004	2.89	2.97	2.82	2.84
2626	NASDAQ	CECO	Thu, Oct 21, 2004	2.96	3.03	2.73	2.81
2625	NASDAQ	CECO	Wed, Oct 20, 2004	2.57	2.90	2.57	2.90
2624	NASDAQ	CECO	Tue, Oct 19, 2004	2.85	3.10	2.25	2.80
2623	NASDAQ	CECO	Mon, Oct 18, 2004	2.76	2.89	2.75	2.80
2622	NASDAQ	CECO	Fri, Oct 15, 2004	2.79	2.92	2.65	2.75
2621	NASDAQ	CECO	Thu, Oct 14, 2004	2.95	3.00	2.80	2.81
2620	NASDAQ	CECO	Wed, Oct 13, 2004	3.05	3.05	2.70	3.00
2619	NASDAQ	CECO	Tue, Oct 12, 2004	2.90	3.00	2.62	2.76
2618	NASDAQ	CECO	Mon, Oct 11, 2004	3.10	3.10	2.86	2.87
2617	NASDAQ	CECO	Fri, Oct 8, 2004	3.10	3.10	2.78	2.85
2616	NASDAQ	CECO	Thu, Oct 7, 2004	2.73	3.10	2.65	2.87
2615	NASDAQ	CECO	Wed, Oct 6, 2004	2.73	2.97	2.51	2.72
2614	NASDAQ	CECO	Tue, Oct 5, 2004	2.11	3.00	2.10	2.76
2613	NASDAQ	CECO	Mon, Oct 4, 2004	2.13	2.13	1.92	2.11
2612	NASDAQ	CECO	Fri, Oct 1, 2004	2.11	2.25	1.96	2.16
2611	NASDAQ	CECO	Thu, Sep 30, 2004	2.12	2.12	2.12	2.12
2610	NASDAQ	CECO	Wed, Sep 29, 2004	2.37	2.37	1.98	2.14
2609	NASDAQ	CECO	Tue, Sep 28, 2004	1.83	2.11	1.83	2.04
2608	NASDAQ	CECO	Mon, Sep 27, 2004	2.20	2.20	1.94	2.18
2607	NASDAQ	CECO	Fri, Sep 24, 2004	2.28	2.28	2.00	2.20
2606	NASDAQ	CECO	Thu, Sep 23, 2004	2.29	2.44	2.00	2.27
2605	NASDAQ	CECO	Wed, Sep 22, 2004	2.29	2.29	2.29	2.29
2604	NASDAQ	CECO	Tue, Sep 21, 2004	2.29	2.31	2.25	2.30
2603	NASDAQ	CECO	Mon, Sep 20, 2004	2.34	2.34	2.17	2.19
2602	NASDAQ	CECO	Fri, Sep 17, 2004	2.26	2.35	2.20	2.20
2601	NASDAQ	CECO	Thu, Sep 16, 2004	2.36	2.36	2.19	2.19
2600	NASDAQ	CECO	Wed, Sep 15, 2004	2.30	2.35	2.16	2.30
2599	NASDAQ	CECO	Tue, Sep 14, 2004	2.32	2.33	2.16	2.21
2598	NASDAQ	CECO	Mon, Sep 13, 2004	2.10	2.31	2.07	2.25
2597	NASDAQ	CECO	Fri, Sep 10, 2004	1.91	2.25	1.91	2.05
2596	NASDAQ	CECO	Thu, Sep 9, 2004	1.75	1.90	1.75	1.90
2595	NASDAQ	CECO	Wed, Sep 8, 2004	1.75	1.90	1.69	1.80
2594	NASDAQ	CECO	Tue, Sep 7, 2004	1.59	1.90	1.59	1.76
2593	NASDAQ	CECO	Fri, Sep 3, 2004	1.48	1.48	1.48	1.48
2592	NASDAQ	CECO	Wed, Sep 1, 2004	1.50	1.50	1.50	1.50
2591	NASDAQ	CECO	Mon, Aug 30, 2004	1.48	1.48	1.48	1.48
2590	NASDAQ	CECO	Fri, Aug 27, 2004	1.50	1.50	1.50	1.50
2589	NASDAQ	CECO	Thu, Aug 26, 2004	1.50	1.50	1.50	1.50
2588	NASDAQ	CECO	Tue, Aug 24, 2004	1.50	1.50	1.50	1.50
2587	NASDAQ	CECO	Mon, Aug 23, 2004	1.57	1.58	1.54	1.54
2586	NASDAQ	CECO	Fri, Aug 20, 2004	1.50	1.50	1.50	1.50
2585	NASDAQ	CECO	Thu, Aug 19, 2004	1.50	1.50	1.50	1.50
2584	NASDAQ	CECO	Tue, Aug 17, 2004	1.50	1.50	1.48	1.48
2583	NASDAQ	CECO	Fri, Aug 13, 2004	1.50	1.50	1.45	1.45
2582	NASDAQ	CECO	Wed, Aug 11, 2004	1.57	1.57	1.57	1.57
2581	NASDAQ	CECO	Tue, Aug 10, 2004	1.46	1.49	1.46	1.46
2580	NASDAQ	CECO	Mon, Aug 9, 2004	1.50	1.50	1.47	1.50
2579	NASDAQ	CECO	Fri, Aug 6, 2004	1.52	1.52	1.51	1.52
2578	NASDAQ	CECO	Thu, Aug 5, 2004	1.87	1.87	1.57	1.57
2577	NASDAQ	CECO	Wed, Aug 4, 2004	1.55	1.57	1.55	1.57
2576	NASDAQ	CECO	Tue, Aug 3, 2004	1.53	1.56	1.53	1.56
2575	NASDAQ	CECO	Mon, Aug 2, 2004	1.53	1.54	1.53	1.53
2574	NASDAQ	CECO	Fri, Jul 30, 2004	1.55	1.55	1.55	1.55
2573	NASDAQ	CECO	Thu, Jul 29, 2004	1.55	1.55	1.55	1.55
2572	NASDAQ	CECO	Wed, Jul 28, 2004	1.60	1.60	1.55	1.55
2571	NASDAQ	CECO	Mon, Jul 26, 2004	1.61	1.61	1.60	1.60
2570	NASDAQ	CECO	Thu, Jul 22, 2004	1.61	1.61	1.61	1.61
2569	NASDAQ	CECO	Wed, Jul 21, 2004	1.61	1.61	1.61	1.61
2568	NASDAQ	CECO	Tue, Jul 20, 2004	1.63	1.63	1.63	1.63
2567	NASDAQ	CECO	Mon, Jul 19, 2004	1.60	1.60	1.60	1.60
2566	NASDAQ	CECO	Thu, Jul 15, 2004	1.62	1.78	1.62	1.75
2565	NASDAQ	CECO	Wed, Jul 14, 2004	1.61	1.61	1.61	1.61
2564	NASDAQ	CECO	Tue, Jul 13, 2004	1.60	1.63	1.60	1.63
2563	NASDAQ	CECO	Mon, Jul 12, 2004	1.56	1.56	1.56	1.56
2562	NASDAQ	CECO	Fri, Jul 9, 2004	1.67	1.67	1.56	1.56
2561	NASDAQ	CECO	Thu, Jul 8, 2004	1.62	1.73	1.57	1.66
2560	NASDAQ	CECO	Wed, Jul 7, 2004	1.79	1.79	1.79	1.79
2559	NASDAQ	CECO	Tue, Jul 6, 2004	1.80	1.81	1.76	1.80
2558	NASDAQ	CECO	Thu, Jul 1, 2004	1.80	1.80	1.76	1.76
2557	NASDAQ	CECO	Wed, Jun 30, 2004	1.77	1.79	1.77	1.79
2556	NASDAQ	CECO	Tue, Jun 29, 2004	1.77	1.85	1.77	1.85
2555	NASDAQ	CECO	Mon, Jun 28, 2004	1.72	1.94	1.72	1.81
2554	NASDAQ	CECO	Fri, Jun 25, 2004	1.73	1.90	1.73	1.77
2553	NASDAQ	CECO	Thu, Jun 24, 2004	1.86	1.86	1.62	1.77
2552	NASDAQ	CECO	Wed, Jun 23, 2004	1.56	1.75	1.56	1.63
2551	NASDAQ	CECO	Tue, Jun 22, 2004	1.55	1.55	1.55	1.55
2550	NASDAQ	CECO	Mon, Jun 21, 2004	1.50	1.53	1.50	1.53
2549	NASDAQ	CECO	Fri, Jun 18, 2004	1.50	1.50	1.50	1.50
2548	NASDAQ	CECO	Thu, Jun 17, 2004	1.51	1.51	1.50	1.50
2547	NASDAQ	CECO	Tue, Jun 15, 2004	1.50	1.50	1.50	1.50
2546	NASDAQ	CECO	Mon, Jun 14, 2004	1.60	1.60	1.50	1.50
2545	NASDAQ	CECO	Thu, Jun 10, 2004	1.51	1.51	1.50	1.51
2544	NASDAQ	CECO	Wed, Jun 9, 2004	1.60	1.60	1.60	1.60
2543	NASDAQ	CECO	Tue, Jun 8, 2004	1.56	1.60	1.50	1.60
2542	NASDAQ	CECO	Mon, Jun 7, 2004	1.55	1.77	1.55	1.59
2541	NASDAQ	CECO	Fri, Jun 4, 2004	1.60	1.66	1.55	1.60
2540	NASDAQ	CECO	Thu, Jun 3, 2004	1.55	1.65	1.52	1.65
2539	NASDAQ	CECO	Wed, Jun 2, 2004	1.59	1.59	1.55	1.55
2538	NASDAQ	CECO	Tue, Jun 1, 2004	1.58	1.66	1.58	1.63
2537	NASDAQ	CECO	Fri, May 28, 2004	1.58	1.58	1.58	1.58
2536	NASDAQ	CECO	Thu, May 27, 2004	1.63	1.67	1.60	1.67
2535	NASDAQ	CECO	Wed, May 26, 2004	1.60	1.60	1.56	1.56
2534	NASDAQ	CECO	Tue, May 25, 2004	1.61	1.61	1.59	1.59
2533	NASDAQ	CECO	Mon, May 24, 2004	1.55	1.66	1.55	1.60
2532	NASDAQ	CECO	Fri, May 21, 2004	1.56	1.56	1.56	1.56
2531	NASDAQ	CECO	Wed, May 19, 2004	1.56	1.56	1.56	1.56
2530	NASDAQ	CECO	Tue, May 18, 2004	1.59	1.65	1.51	1.60
2529	NASDAQ	CECO	Mon, May 17, 2004	1.75	1.75	1.57	1.65
2528	NASDAQ	CECO	Fri, May 14, 2004	1.92	1.92	1.56	1.59
2527	NASDAQ	CECO	Thu, May 13, 2004	1.56	1.60	1.55	1.55
2526	NASDAQ	CECO	Tue, May 11, 2004	1.66	1.67	1.66	1.67
2525	NASDAQ	CECO	Fri, May 7, 2004	1.69	1.69	1.65	1.66
2524	NASDAQ	CECO	Thu, May 6, 2004	1.73	1.73	1.61	1.66
2523	NASDAQ	CECO	Tue, May 4, 2004	1.55	1.75	1.55	1.69
2522	NASDAQ	CECO	Mon, May 3, 2004	1.90	1.90	1.57	1.63
2521	NASDAQ	CECO	Fri, Apr 30, 2004	1.57	1.61	1.50	1.55
2520	NASDAQ	CECO	Thu, Apr 29, 2004	1.76	1.78	1.69	1.78
2519	NASDAQ	CECO	Wed, Apr 28, 2004	1.75	1.75	1.75	1.75
2518	NASDAQ	CECO	Tue, Apr 27, 2004	1.71	1.71	1.59	1.59
2517	NASDAQ	CECO	Mon, Apr 26, 2004	1.75	1.90	1.64	1.69
2516	NASDAQ	CECO	Fri, Apr 23, 2004	1.63	1.69	1.63	1.64
2515	NASDAQ	CECO	Thu, Apr 22, 2004	1.69	1.69	1.63	1.63
2514	NASDAQ	CECO	Wed, Apr 21, 2004	1.66	1.66	1.65	1.65
2513	NASDAQ	CECO	Tue, Apr 20, 2004	1.62	1.85	1.62	1.74
2512	NASDAQ	CECO	Mon, Apr 19, 2004	1.52	1.56	1.52	1.56
2511	NASDAQ	CECO	Fri, Apr 16, 2004	1.92	1.92	1.74	1.74
2510	NASDAQ	CECO	Thu, Apr 15, 2004	1.75	1.76	1.50	1.59
2509	NASDAQ	CECO	Wed, Apr 14, 2004	1.72	1.72	1.72	1.72
2508	NASDAQ	CECO	Tue, Apr 13, 2004	1.78	1.85	1.72	1.72
2507	NASDAQ	CECO	Thu, Apr 8, 2004	1.73	1.73	1.73	1.73
2506	NASDAQ	CECO	Wed, Apr 7, 2004	1.72	1.72	1.72	1.72
2505	NASDAQ	CECO	Tue, Apr 6, 2004	1.74	1.74	1.72	1.72
2504	NASDAQ	CECO	Mon, Apr 5, 2004	1.74	1.74	1.74	1.74
2503	NASDAQ	CECO	Thu, Apr 1, 2004	1.76	1.76	1.75	1.75
2502	NASDAQ	CECO	Wed, Mar 31, 2004	1.76	1.76	1.76	1.76
2501	NASDAQ	CECO	Tue, Mar 30, 2004	1.76	1.83	1.75	1.82
2500	NASDAQ	CECO	Thu, Mar 25, 2004	1.79	1.80	1.79	1.80
2499	NASDAQ	CECO	Wed, Mar 24, 2004	1.77	1.80	1.77	1.80
2498	NASDAQ	CECO	Tue, Mar 23, 2004	1.75	1.76	1.75	1.75
2497	NASDAQ	CECO	Mon, Mar 22, 2004	1.95	1.98	1.76	1.76
2496	NASDAQ	CECO	Fri, Mar 19, 2004	1.95	1.95	1.88	1.88
2495	NASDAQ	CECO	Wed, Mar 17, 2004	1.81	1.81	1.81	1.81
2494	NASDAQ	CECO	Mon, Mar 15, 2004	1.84	1.85	1.80	1.80
2493	NASDAQ	CECO	Fri, Mar 12, 2004	1.77	1.83	1.77	1.83
2492	NASDAQ	CECO	Wed, Mar 10, 2004	1.87	1.89	1.82	1.89
2491	NASDAQ	CECO	Tue, Mar 9, 2004	1.84	1.84	1.80	1.80
2490	NASDAQ	CECO	Mon, Mar 8, 2004	1.78	1.85	1.78	1.85
2489	NASDAQ	CECO	Fri, Mar 5, 2004	1.83	1.83	1.78	1.78
2488	NASDAQ	CECO	Thu, Mar 4, 2004	1.79	1.79	1.79	1.79
2487	NASDAQ	CECO	Wed, Mar 3, 2004	1.99	1.99	1.81	1.88
2486	NASDAQ	CECO	Tue, Mar 2, 2004	1.80	1.80	1.80	1.80
2485	NASDAQ	CECO	Mon, Mar 1, 2004	1.87	1.87	1.87	1.87
2484	NASDAQ	CECO	Fri, Feb 27, 2004	1.82	1.82	1.81	1.81
2483	NASDAQ	CECO	Thu, Feb 26, 2004	1.82	1.84	1.82	1.84
2482	NASDAQ	CECO	Wed, Feb 25, 2004	1.87	1.87	1.83	1.83
2481	NASDAQ	CECO	Tue, Feb 24, 2004	1.81	1.81	1.81	1.81
2480	NASDAQ	CECO	Mon, Feb 23, 2004	1.83	1.85	1.81	1.81
2479	NASDAQ	CECO	Fri, Feb 20, 2004	1.98	1.98	1.83	1.83
2478	NASDAQ	CECO	Thu, Feb 19, 2004	1.97	1.97	1.85	1.95
2477	NASDAQ	CECO	Tue, Feb 17, 2004	1.97	1.97	1.84	1.84
2476	NASDAQ	CECO	Fri, Feb 13, 2004	1.97	1.97	1.93	1.93
2475	NASDAQ	CECO	Wed, Feb 11, 2004	1.89	1.90	1.76	1.89
2474	NASDAQ	CECO	Tue, Feb 10, 2004	1.91	1.91	1.90	1.90
2473	NASDAQ	CECO	Mon, Feb 9, 2004	1.91	1.97	1.90	1.97
2472	NASDAQ	CECO	Fri, Feb 6, 2004	1.93	1.96	1.89	1.89
2471	NASDAQ	CECO	Thu, Feb 5, 2004	1.95	1.98	1.95	1.98
2470	NASDAQ	CECO	Wed, Feb 4, 2004	1.95	1.95	1.95	1.95
2469	NASDAQ	CECO	Tue, Feb 3, 2004	1.94	1.95	1.94	1.95
2468	NASDAQ	CECO	Mon, Feb 2, 2004	1.88	1.93	1.88	1.88
2467	NASDAQ	CECO	Fri, Jan 30, 2004	1.89	1.89	1.88	1.88
2466	NASDAQ	CECO	Wed, Jan 28, 2004	1.93	1.93	1.93	1.93
2465	NASDAQ	CECO	Tue, Jan 27, 2004	1.81	1.81	1.80	1.80
2464	NASDAQ	CECO	Mon, Jan 26, 2004	2.01	2.01	1.83	1.83
2463	NASDAQ	CECO	Fri, Jan 23, 2004	2.01	2.01	1.91	2.00
2462	NASDAQ	CECO	Thu, Jan 22, 2004	1.90	2.00	1.89	2.00
2461	NASDAQ	CECO	Wed, Jan 21, 2004	1.89	1.89	1.88	1.88
2460	NASDAQ	CECO	Tue, Jan 20, 2004	1.79	1.89	1.79	1.89
2459	NASDAQ	CECO	Fri, Jan 16, 2004	1.80	1.81	1.79	1.80
2458	NASDAQ	CECO	Thu, Jan 15, 2004	1.78	1.80	1.76	1.80
2457	NASDAQ	CECO	Wed, Jan 14, 2004	1.72	1.72	1.72	1.72
2456	NASDAQ	CECO	Tue, Jan 13, 2004	1.71	1.75	1.71	1.73
2455	NASDAQ	CECO	Mon, Jan 12, 2004	1.66	1.66	1.65	1.65
2454	NASDAQ	CECO	Wed, Jan 7, 2004	1.75	1.75	1.75	1.75
2453	NASDAQ	CECO	Tue, Jan 6, 2004	1.73	1.74	1.73	1.74
2452	NASDAQ	CECO	Mon, Jan 5, 2004	1.71	1.71	1.65	1.70
2451	NASDAQ	CECO	Fri, Jan 2, 2004	1.65	1.75	1.65	1.75
2450	NASDAQ	CECO	Wed, Dec 31, 2003	1.65	1.65	1.65	1.65
2449	NASDAQ	CECO	Tue, Dec 30, 2003	1.68	1.70	1.63	1.63
2448	NASDAQ	CECO	Mon, Dec 29, 2003	1.62	1.75	1.62	1.62
2447	NASDAQ	CECO	Fri, Dec 26, 2003	1.60	1.74	1.50	1.74
2446	NASDAQ	CECO	Wed, Dec 24, 2003	1.65	1.65	1.65	1.65
2445	NASDAQ	CECO	Tue, Dec 23, 2003	1.61	1.61	1.60	1.60
2444	NASDAQ	CECO	Mon, Dec 22, 2003	1.65	1.70	1.55	1.55
2443	NASDAQ	CECO	Thu, Dec 18, 2003	1.75	1.75	1.60	1.66
2442	NASDAQ	CECO	Wed, Dec 17, 2003	1.55	1.67	1.55	1.60
2441	NASDAQ	CECO	Tue, Dec 16, 2003	1.55	1.55	1.55	1.55
2440	NASDAQ	CECO	Mon, Dec 15, 2003	1.84	1.84	1.79	1.79
2439	NASDAQ	CECO	Fri, Dec 12, 2003	1.76	1.77	1.76	1.77
2438	NASDAQ	CECO	Wed, Dec 10, 2003	1.60	1.76	1.60	1.75
2437	NASDAQ	CECO	Tue, Dec 9, 2003	1.70	1.70	1.51	1.55
2436	NASDAQ	CECO	Fri, Dec 5, 2003	1.75	1.75	1.70	1.70
2435	NASDAQ	CECO	Thu, Dec 4, 2003	1.81	1.81	1.76	1.76
2434	NASDAQ	CECO	Wed, Dec 3, 2003	1.79	1.79	1.75	1.79
2433	NASDAQ	CECO	Tue, Dec 2, 2003	1.88	1.88	1.81	1.81
2432	NASDAQ	CECO	Mon, Dec 1, 2003	1.87	1.90	1.86	1.86
2431	NASDAQ	CECO	Fri, Nov 28, 2003	1.85	2.00	1.85	2.00
2430	NASDAQ	CECO	Tue, Nov 25, 2003	1.83	1.90	1.76	1.90
2429	NASDAQ	CECO	Mon, Nov 24, 2003	1.85	1.85	1.82	1.82
2428	NASDAQ	CECO	Fri, Nov 21, 2003	1.82	1.82	1.82	1.82
2427	NASDAQ	CECO	Wed, Nov 19, 2003	1.75	1.75	1.75	1.75
2426	NASDAQ	CECO	Tue, Nov 18, 2003	1.86	1.87	1.76	1.83
2425	NASDAQ	CECO	Mon, Nov 17, 2003	1.80	1.85	1.80	1.84
2424	NASDAQ	CECO	Fri, Nov 14, 2003	1.66	1.78	1.66	1.78
2423	NASDAQ	CECO	Thu, Nov 13, 2003	1.65	1.65	1.65	1.65
2422	NASDAQ	CECO	Wed, Nov 12, 2003	1.73	1.75	1.66	1.75
2421	NASDAQ	CECO	Tue, Nov 11, 2003	1.84	1.84	1.77	1.77
2420	NASDAQ	CECO	Mon, Nov 10, 2003	1.85	1.85	1.85	1.85
2419	NASDAQ	CECO	Fri, Nov 7, 2003	1.85	1.85	1.84	1.84
2418	NASDAQ	CECO	Wed, Nov 5, 2003	1.78	1.88	1.73	1.73
2417	NASDAQ	CECO	Tue, Nov 4, 2003	1.71	1.80	1.71	1.76
2416	NASDAQ	CECO	Fri, Oct 31, 2003	1.65	1.70	1.65	1.65
2415	NASDAQ	CECO	Wed, Oct 29, 2003	1.70	1.70	1.65	1.68
2414	NASDAQ	CECO	Tue, Oct 28, 2003	1.75	1.75	1.75	1.75
2413	NASDAQ	CECO	Fri, Oct 24, 2003	1.77	1.77	1.70	1.75
2412	NASDAQ	CECO	Thu, Oct 23, 2003	1.76	1.76	1.75	1.75
2411	NASDAQ	CECO	Tue, Oct 21, 2003	1.76	1.80	1.71	1.77
2410	NASDAQ	CECO	Thu, Oct 16, 2003	1.76	1.76	1.71	1.71
2409	NASDAQ	CECO	Wed, Oct 15, 2003	1.74	1.79	1.70	1.79
2408	NASDAQ	CECO	Tue, Oct 14, 2003	1.78	1.78	1.78	1.78
2407	NASDAQ	CECO	Mon, Oct 13, 2003	1.78	1.78	1.75	1.75
2406	NASDAQ	CECO	Fri, Oct 10, 2003	1.70	1.78	1.70	1.78
2405	NASDAQ	CECO	Thu, Oct 9, 2003	1.75	1.79	1.70	1.70
2404	NASDAQ	CECO	Wed, Oct 8, 2003	1.75	1.75	1.69	1.74
2403	NASDAQ	CECO	Fri, Oct 3, 2003	1.78	1.78	1.78	1.78
2402	NASDAQ	CECO	Tue, Sep 30, 2003	1.84	1.84	1.79	1.79
2401	NASDAQ	CECO	Mon, Sep 29, 2003	1.82	1.83	1.80	1.81
2400	NASDAQ	CECO	Fri, Sep 26, 2003	1.83	1.83	1.83	1.83
2399	NASDAQ	CECO	Thu, Sep 25, 2003	1.84	1.84	1.84	1.84
2398	NASDAQ	CECO	Wed, Sep 24, 2003	1.85	1.86	1.84	1.85
2397	NASDAQ	CECO	Tue, Sep 23, 2003	1.90	1.90	1.84	1.86
2396	NASDAQ	CECO	Fri, Sep 19, 2003	1.90	1.90	1.90	1.90
2395	NASDAQ	CECO	Thu, Sep 18, 2003	1.89	1.90	1.89	1.90
2394	NASDAQ	CECO	Wed, Sep 17, 2003	1.85	1.89	1.85	1.89
2393	NASDAQ	CECO	Tue, Sep 16, 2003	1.80	1.80	1.80	1.80
2392	NASDAQ	CECO	Mon, Sep 15, 2003	1.85	1.85	1.78	1.78
2391	NASDAQ	CECO	Fri, Sep 12, 2003	1.76	1.76	1.76	1.76
2390	NASDAQ	CECO	Mon, Sep 8, 2003	1.76	1.76	1.59	1.59
2389	NASDAQ	CECO	Thu, Sep 4, 2003	1.78	1.78	1.78	1.78
2388	NASDAQ	CECO	Wed, Sep 3, 2003	1.75	1.75	1.75	1.75
2387	NASDAQ	CECO	Fri, Aug 29, 2003	2.00	2.00	1.89	1.89
2386	NASDAQ	CECO	Thu, Aug 28, 2003	1.74	1.74	1.74	1.74
2385	NASDAQ	CECO	Wed, Aug 27, 2003	1.77	2.00	1.76	2.00
2384	NASDAQ	CECO	Mon, Aug 25, 2003	1.75	1.99	1.75	1.75
2383	NASDAQ	CECO	Fri, Aug 22, 2003	1.82	1.83	1.75	1.75
2382	NASDAQ	CECO	Thu, Aug 21, 2003	2.00	2.00	1.86	1.86
2381	NASDAQ	CECO	Mon, Aug 18, 2003	1.86	1.86	1.82	1.82
2380	NASDAQ	CECO	Fri, Aug 15, 2003	1.99	1.99	1.99	1.99
2379	NASDAQ	CECO	Thu, Aug 14, 2003	1.99	1.99	1.99	1.99
2378	NASDAQ	CECO	Wed, Aug 13, 2003	1.99	1.99	1.99	1.99
2377	NASDAQ	CECO	Tue, Aug 12, 2003	1.83	1.83	1.83	1.83
2376	NASDAQ	CECO	Mon, Aug 11, 2003	1.99	1.99	1.99	1.99
2375	NASDAQ	CECO	Fri, Aug 8, 2003	1.99	1.99	1.99	1.99
2374	NASDAQ	CECO	Thu, Aug 7, 2003	1.87	1.99	1.87	1.99
2373	NASDAQ	CECO	Tue, Aug 5, 2003	1.99	1.99	1.99	1.99
2372	NASDAQ	CECO	Mon, Aug 4, 2003	1.95	1.95	1.95	1.95
2371	NASDAQ	CECO	Fri, Aug 1, 2003	2.00	2.00	1.90	1.90
2370	NASDAQ	CECO	Thu, Jul 31, 2003	1.99	1.99	1.99	1.99
2369	NASDAQ	CECO	Wed, Jul 30, 2003	1.88	1.88	1.83	1.83
2368	NASDAQ	CECO	Tue, Jul 29, 2003	2.00	2.00	2.00	2.00
2367	NASDAQ	CECO	Mon, Jul 28, 2003	2.00	2.00	2.00	2.00
2366	NASDAQ	CECO	Fri, Jul 25, 2003	1.83	2.00	1.83	2.00
2365	NASDAQ	CECO	Thu, Jul 24, 2003	1.86	2.10	1.84	2.00
2364	NASDAQ	CECO	Wed, Jul 23, 2003	1.86	1.86	1.86	1.86
2363	NASDAQ	CECO	Tue, Jul 22, 2003	1.86	1.86	1.86	1.86
2362	NASDAQ	CECO	Thu, Jul 17, 2003	1.90	1.90	1.90	1.90
2361	NASDAQ	CECO	Wed, Jul 16, 2003	2.05	2.05	2.05	2.05
2360	NASDAQ	CECO	Tue, Jul 15, 2003	1.65	2.10	1.59	2.10
2359	NASDAQ	CECO	Fri, Jul 11, 2003	1.76	1.76	1.66	1.72
2358	NASDAQ	CECO	Wed, Jul 2, 2003	1.77	1.77	1.77	1.77
2357	NASDAQ	CECO	Mon, Jun 30, 2003	1.85	1.85	1.80	1.80
2356	NASDAQ	CECO	Fri, Jun 27, 2003	2.00	2.02	1.77	2.02
2355	NASDAQ	CECO	Thu, Jun 26, 2003	1.99	2.02	1.99	2.02
2354	NASDAQ	CECO	Wed, Jun 25, 2003	1.99	2.00	1.80	2.00
2353	NASDAQ	CECO	Mon, Jun 23, 2003	1.95	1.95	1.95	1.95
2352	NASDAQ	CECO	Wed, Jun 18, 2003	1.94	1.94	1.94	1.94
2351	NASDAQ	CECO	Tue, Jun 17, 2003	1.99	1.99	1.99	1.99
2350	NASDAQ	CECO	Mon, Jun 16, 2003	1.99	1.99	1.99	1.99
2349	NASDAQ	CECO	Fri, Jun 13, 2003	2.00	2.00	2.00	2.00
2348	NASDAQ	CECO	Wed, Jun 11, 2003	1.99	2.06	1.99	2.00
2347	NASDAQ	CECO	Tue, Jun 10, 2003	2.01	2.01	2.00	2.00
2346	NASDAQ	CECO	Mon, Jun 9, 2003	1.99	2.04	1.99	2.04
2345	NASDAQ	CECO	Fri, Jun 6, 2003	2.00	2.00	2.00	2.00
2344	NASDAQ	CECO	Wed, Jun 4, 2003	1.96	1.96	1.95	1.95
2343	NASDAQ	CECO	Tue, Jun 3, 2003	1.90	2.00	1.90	1.97
2342	NASDAQ	CECO	Mon, Jun 2, 2003	1.97	1.97	1.90	1.90
2341	NASDAQ	CECO	Fri, May 30, 2003	1.90	1.90	1.90	1.90
2340	NASDAQ	CECO	Thu, May 29, 2003	1.79	1.83	1.78	1.83
2339	NASDAQ	CECO	Wed, May 28, 2003	1.79	1.79	1.78	1.79
2338	NASDAQ	CECO	Tue, May 27, 2003	1.88	1.88	1.79	1.87
2337	NASDAQ	CECO	Fri, May 23, 2003	2.00	2.01	1.89	1.89
2336	NASDAQ	CECO	Thu, May 22, 2003	1.80	2.00	1.80	1.99
2335	NASDAQ	CECO	Wed, May 21, 2003	1.75	1.79	1.75	1.79
2334	NASDAQ	CECO	Tue, May 20, 2003	1.70	1.75	1.70	1.75
2333	NASDAQ	CECO	Fri, May 16, 2003	1.69	1.69	1.69	1.69
2332	NASDAQ	CECO	Wed, May 14, 2003	1.72	1.72	1.70	1.70
2331	NASDAQ	CECO	Tue, May 13, 2003	1.69	1.71	1.66	1.66
2330	NASDAQ	CECO	Mon, May 12, 2003	1.62	1.62	1.62	1.62
2329	NASDAQ	CECO	Fri, May 9, 2003	1.61	1.61	1.61	1.61
2328	NASDAQ	CECO	Tue, May 6, 2003	1.61	1.61	1.61	1.61
2327	NASDAQ	CECO	Mon, May 5, 2003	1.65	1.65	1.60	1.60
2326	NASDAQ	CECO	Fri, May 2, 2003	1.65	1.65	1.65	1.65
2325	NASDAQ	CECO	Thu, May 1, 2003	1.60	1.67	1.60	1.67
2324	NASDAQ	CECO	Wed, Apr 30, 2003	1.60	1.60	1.60	1.60
2323	NASDAQ	CECO	Tue, Apr 29, 2003	1.60	1.60	1.60	1.60
2322	NASDAQ	CECO	Mon, Apr 28, 2003	1.60	1.60	1.60	1.60
2321	NASDAQ	CECO	Fri, Apr 25, 2003	1.60	1.60	1.57	1.60
2320	NASDAQ	CECO	Wed, Apr 23, 2003	1.56	1.56	1.56	1.56
2319	NASDAQ	CECO	Tue, Apr 22, 2003	1.60	1.64	1.55	1.55
2318	NASDAQ	CECO	Mon, Apr 21, 2003	1.60	1.60	1.59	1.60
2317	NASDAQ	CECO	Wed, Apr 16, 2003	1.60	1.60	1.60	1.60
2316	NASDAQ	CECO	Tue, Apr 15, 2003	1.65	1.74	1.65	1.65
2315	NASDAQ	CECO	Mon, Apr 14, 2003	1.68	1.68	1.65	1.65
2314	NASDAQ	CECO	Fri, Apr 11, 2003	1.66	1.71	1.65	1.65
2313	NASDAQ	CECO	Thu, Apr 10, 2003	1.71	1.71	1.71	1.71
2312	NASDAQ	CECO	Wed, Apr 9, 2003	1.71	1.71	1.71	1.71
2311	NASDAQ	CECO	Tue, Apr 8, 2003	1.71	1.71	1.71	1.71
2310	NASDAQ	CECO	Mon, Apr 7, 2003	1.64	1.77	1.64	1.77
2309	NASDAQ	CECO	Fri, Apr 4, 2003	1.60	1.60	1.57	1.57
2308	NASDAQ	CECO	Thu, Apr 3, 2003	1.65	1.65	1.60	1.60
2307	NASDAQ	CECO	Wed, Apr 2, 2003	1.77	1.77	1.77	1.77
2306	NASDAQ	CECO	Tue, Apr 1, 2003	1.70	1.70	1.65	1.65
2305	NASDAQ	CECO	Thu, Mar 27, 2003	1.94	1.94	1.84	1.84
2304	NASDAQ	CECO	Wed, Mar 26, 2003	1.74	1.95	1.74	1.95
2303	NASDAQ	CECO	Mon, Mar 24, 2003	1.71	1.71	1.71	1.71
2302	NASDAQ	CECO	Thu, Mar 20, 2003	1.65	1.65	1.65	1.65
2301	NASDAQ	CECO	Wed, Mar 19, 2003	1.65	1.65	1.65	1.65
2300	NASDAQ	CECO	Tue, Mar 18, 2003	1.65	1.65	1.65	1.65
2299	NASDAQ	CECO	Mon, Mar 17, 2003	1.71	1.71	1.71	1.71
2298	NASDAQ	CECO	Fri, Mar 14, 2003	1.65	1.72	1.65	1.72
2297	NASDAQ	CECO	Thu, Mar 13, 2003	1.72	1.72	1.66	1.66
2296	NASDAQ	CECO	Wed, Mar 12, 2003	1.72	1.72	1.70	1.70
2295	NASDAQ	CECO	Tue, Mar 11, 2003	1.73	1.77	1.70	1.70
2294	NASDAQ	CECO	Mon, Mar 10, 2003	1.73	1.73	1.73	1.73
2293	NASDAQ	CECO	Thu, Mar 6, 2003	1.75	1.75	1.75	1.75
2292	NASDAQ	CECO	Wed, Mar 5, 2003	1.74	1.74	1.74	1.74
2291	NASDAQ	CECO	Mon, Mar 3, 2003	1.70	1.70	1.70	1.70
2290	NASDAQ	CECO	Thu, Feb 27, 2003	1.70	1.70	1.70	1.70
2289	NASDAQ	CECO	Wed, Feb 26, 2003	1.70	1.71	1.70	1.71
2288	NASDAQ	CECO	Tue, Feb 25, 2003	1.82	1.82	1.70	1.70
2287	NASDAQ	CECO	Wed, Feb 19, 2003	1.87	1.87	1.80	1.80
2286	NASDAQ	CECO	Tue, Feb 18, 2003	1.85	1.88	1.80	1.80
2285	NASDAQ	CECO	Fri, Feb 14, 2003	1.86	1.86	1.85	1.85
2284	NASDAQ	CECO	Tue, Feb 11, 2003	1.91	1.94	1.87	1.87
2283	NASDAQ	CECO	Mon, Feb 10, 2003	1.90	1.90	1.89	1.89
2282	NASDAQ	CECO	Fri, Feb 7, 2003	1.90	1.90	1.90	1.90
2281	NASDAQ	CECO	Wed, Feb 5, 2003	1.90	1.90	1.89	1.90
2280	NASDAQ	CECO	Tue, Feb 4, 2003	1.90	1.90	1.90	1.90
2279	NASDAQ	CECO	Fri, Jan 31, 2003	1.91	1.91	1.89	1.89
2278	NASDAQ	CECO	Thu, Jan 30, 2003	1.92	1.92	1.92	1.92
2277	NASDAQ	CECO	Wed, Jan 29, 2003	1.90	1.93	1.89	1.93
2276	NASDAQ	CECO	Tue, Jan 28, 2003	1.87	1.87	1.86	1.86
2275	NASDAQ	CECO	Mon, Jan 27, 2003	1.90	1.90	1.90	1.90
2274	NASDAQ	CECO	Thu, Jan 23, 2003	1.92	1.92	1.86	1.86
2273	NASDAQ	CECO	Tue, Jan 21, 2003	1.91	1.91	1.91	1.91
2272	NASDAQ	CECO	Thu, Jan 16, 2003	1.91	1.91	1.91	1.91
2271	NASDAQ	CECO	Tue, Jan 14, 2003	1.90	1.90	1.89	1.90
2270	NASDAQ	CECO	Mon, Jan 13, 2003	1.87	1.89	1.85	1.88
2269	NASDAQ	CECO	Fri, Jan 10, 2003	1.86	1.86	1.86	1.86
2268	NASDAQ	CECO	Thu, Jan 9, 2003	1.86	1.86	1.86	1.86
2267	NASDAQ	CECO	Wed, Jan 8, 2003	1.88	1.92	1.85	1.85
2266	NASDAQ	CECO	Tue, Jan 7, 2003	1.92	1.92	1.92	1.92
2265	NASDAQ	CECO	Thu, Jan 2, 2003	1.93	1.93	1.92	1.92
2264	NASDAQ	CECO	Tue, Dec 31, 2002	1.87	1.87	1.85	1.85
2263	NASDAQ	CECO	Mon, Dec 30, 2002	1.87	1.87	1.85	1.85
2262	NASDAQ	CECO	Fri, Dec 27, 2002	1.88	1.88	1.88	1.88
2261	NASDAQ	CECO	Tue, Dec 24, 2002	1.87	1.87	1.86	1.86
2260	NASDAQ	CECO	Mon, Dec 23, 2002	1.86	1.86	1.85	1.85
2259	NASDAQ	CECO	Fri, Dec 20, 2002	1.89	1.89	1.86	1.87
2258	NASDAQ	CECO	Thu, Dec 19, 2002	1.90	1.90	1.90	1.90
2257	NASDAQ	CECO	Tue, Dec 17, 2002	1.90	1.90	1.90	1.90
2256	NASDAQ	CECO	Mon, Dec 16, 2002	1.96	1.96	1.90	1.90
2255	NASDAQ	CECO	Thu, Dec 12, 2002	1.96	1.96	1.95	1.95
2254	NASDAQ	CECO	Tue, Dec 10, 2002	1.98	1.98	1.95	1.95
2253	NASDAQ	CECO	Fri, Dec 6, 2002	2.05	2.14	2.05	2.08
2252	NASDAQ	CECO	Wed, Dec 4, 2002	1.97	1.97	1.97	1.97
2251	NASDAQ	CECO	Tue, Dec 3, 2002	1.98	1.98	1.98	1.98
2250	NASDAQ	CECO	Mon, Dec 2, 2002	1.98	1.98	1.98	1.98
2249	NASDAQ	CECO	Fri, Nov 29, 2002	2.00	2.02	1.98	1.98
2248	NASDAQ	CECO	Wed, Nov 27, 2002	2.01	2.01	2.01	2.01
2247	NASDAQ	CECO	Tue, Nov 26, 2002	2.01	2.01	2.01	2.01
2246	NASDAQ	CECO	Mon, Nov 25, 2002	2.01	2.02	2.01	2.02
2245	NASDAQ	CECO	Fri, Nov 22, 2002	2.05	2.07	2.01	2.01
2244	NASDAQ	CECO	Thu, Nov 21, 2002	1.98	1.98	1.98	1.98
2243	NASDAQ	CECO	Wed, Nov 20, 2002	2.05	2.05	2.05	2.05
2242	NASDAQ	CECO	Tue, Nov 19, 2002	2.00	2.00	1.99	1.99
2241	NASDAQ	CECO	Mon, Nov 18, 2002	2.01	2.01	2.00	2.00
2240	NASDAQ	CECO	Fri, Nov 15, 2002	1.99	2.00	1.99	2.00
2239	NASDAQ	CECO	Thu, Nov 14, 2002	2.00	2.00	1.98	1.98
2238	NASDAQ	CECO	Wed, Nov 13, 2002	2.01	2.01	2.00	2.00
2237	NASDAQ	CECO	Fri, Nov 8, 2002	2.06	2.07	2.06	2.07
2236	NASDAQ	CECO	Wed, Nov 6, 2002	1.96	1.96	1.96	1.96
2235	NASDAQ	CECO	Tue, Nov 5, 2002	2.01	2.01	1.95	1.96
2234	NASDAQ	CECO	Fri, Nov 1, 2002	2.01	2.07	2.01	2.07
2233	NASDAQ	CECO	Thu, Oct 31, 2002	2.01	2.01	1.91	1.97
2232	NASDAQ	CECO	Wed, Oct 30, 2002	1.80	2.18	1.75	2.01
2231	NASDAQ	CECO	Mon, Oct 28, 2002	1.80	1.90	1.80	1.90
2230	NASDAQ	CECO	Fri, Oct 25, 2002	1.85	1.85	1.85	1.85
2229	NASDAQ	CECO	Thu, Oct 24, 2002	1.93	1.93	1.85	1.85
2228	NASDAQ	CECO	Tue, Oct 22, 2002	1.93	1.93	1.93	1.93
2227	NASDAQ	CECO	Mon, Oct 21, 2002	1.93	1.93	1.93	1.93
2226	NASDAQ	CECO	Wed, Oct 16, 2002	1.96	1.96	1.96	1.96
2225	NASDAQ	CECO	Mon, Oct 14, 2002	2.03	2.03	1.96	1.96
2224	NASDAQ	CECO	Fri, Oct 11, 2002	2.02	2.02	2.02	2.02
2223	NASDAQ	CECO	Thu, Oct 10, 2002	2.03	2.07	2.00	2.02
2222	NASDAQ	CECO	Wed, Oct 9, 2002	2.00	2.00	2.00	2.00
2221	NASDAQ	CECO	Tue, Oct 8, 2002	2.01	2.01	2.00	2.00
2220	NASDAQ	CECO	Mon, Oct 7, 2002	1.94	1.94	1.94	1.94
2219	NASDAQ	CECO	Fri, Oct 4, 2002	2.14	2.14	2.14	2.14
2218	NASDAQ	CECO	Thu, Oct 3, 2002	1.90	2.00	1.86	1.86
2217	NASDAQ	CECO	Mon, Sep 30, 2002	1.81	1.81	1.81	1.81
2216	NASDAQ	CECO	Fri, Sep 27, 2002	1.86	1.86	1.86	1.86
2215	NASDAQ	CECO	Thu, Sep 26, 2002	1.87	1.87	1.87	1.87
2214	NASDAQ	CECO	Wed, Sep 25, 2002	1.89	1.89	1.88	1.88
2213	NASDAQ	CECO	Tue, Sep 24, 2002	1.90	1.90	1.89	1.89
2212	NASDAQ	CECO	Thu, Sep 19, 2002	1.89	1.89	1.89	1.89
2211	NASDAQ	CECO	Tue, Sep 17, 2002	1.87	1.87	1.87	1.87
2210	NASDAQ	CECO	Mon, Sep 16, 2002	1.98	1.99	1.98	1.99
2209	NASDAQ	CECO	Fri, Sep 13, 2002	1.82	1.82	1.80	1.80
2208	NASDAQ	CECO	Thu, Sep 12, 2002	1.85	1.85	1.85	1.85
2207	NASDAQ	CECO	Wed, Sep 11, 2002	1.91	1.91	1.90	1.90
2206	NASDAQ	CECO	Tue, Sep 10, 2002	2.19	2.19	2.19	2.19
2205	NASDAQ	CECO	Mon, Sep 9, 2002	1.81	1.81	1.80	1.80
2204	NASDAQ	CECO	Fri, Aug 30, 2002	1.80	2.20	1.77	2.20
2203	NASDAQ	CECO	Wed, Aug 28, 2002	1.81	1.81	1.81	1.81
2202	NASDAQ	CECO	Tue, Aug 27, 2002	1.81	1.81	1.81	1.81
2201	NASDAQ	CECO	Mon, Aug 26, 2002	1.82	1.82	1.81	1.81
2200	NASDAQ	CECO	Thu, Aug 22, 2002	1.82	1.82	1.82	1.82
2199	NASDAQ	CECO	Wed, Aug 21, 2002	1.81	1.81	1.81	1.81
2198	NASDAQ	CECO	Tue, Aug 20, 2002	1.82	1.82	1.82	1.82
2197	NASDAQ	CECO	Mon, Aug 19, 2002	2.03	2.17	1.75	2.17
2196	NASDAQ	CECO	Thu, Aug 15, 2002	1.92	1.95	1.92	1.95
2195	NASDAQ	CECO	Wed, Aug 14, 2002	1.93	1.93	1.92	1.92
2194	NASDAQ	CECO	Tue, Aug 13, 2002	2.00	2.00	2.00	2.00
2193	NASDAQ	CECO	Mon, Aug 12, 2002	1.92	1.92	1.91	1.91
2192	NASDAQ	CECO	Fri, Aug 9, 2002	2.05	2.05	1.96	1.96
2191	NASDAQ	CECO	Wed, Aug 7, 2002	2.05	2.15	2.05	2.05
2190	NASDAQ	CECO	Tue, Aug 6, 2002	2.14	2.14	2.14	2.14
2189	NASDAQ	CECO	Fri, Aug 2, 2002	2.10	2.10	2.02	2.02
2188	NASDAQ	CECO	Wed, Jul 31, 2002	2.10	2.10	2.10	2.10
2187	NASDAQ	CECO	Mon, Jul 29, 2002	2.06	2.10	1.95	2.10
2186	NASDAQ	CECO	Fri, Jul 26, 2002	2.05	2.05	2.05	2.05
2185	NASDAQ	CECO	Wed, Jul 24, 2002	2.15	2.15	2.15	2.15
2184	NASDAQ	CECO	Mon, Jul 22, 2002	2.07	2.07	2.06	2.06
2183	NASDAQ	CECO	Thu, Jul 18, 2002	2.07	2.07	2.07	2.07
2182	NASDAQ	CECO	Wed, Jul 17, 2002	2.06	2.20	2.06	2.15
2181	NASDAQ	CECO	Mon, Jul 15, 2002	2.06	2.06	2.06	2.06
2180	NASDAQ	CECO	Fri, Jul 12, 2002	2.02	2.02	2.02	2.02
2179	NASDAQ	CECO	Thu, Jul 11, 2002	2.05	2.05	2.01	2.02
2178	NASDAQ	CECO	Wed, Jul 10, 2002	2.06	2.06	2.06	2.06
2177	NASDAQ	CECO	Tue, Jul 9, 2002	2.10	2.10	2.10	2.10
2176	NASDAQ	CECO	Fri, Jul 5, 2002	2.10	2.25	2.10	2.25
2175	NASDAQ	CECO	Wed, Jul 3, 2002	2.31	2.31	2.10	2.30
2174	NASDAQ	CECO	Tue, Jul 2, 2002	2.40	2.40	2.35	2.35
2173	NASDAQ	CECO	Mon, Jul 1, 2002	2.40	2.40	2.40	2.40
2172	NASDAQ	CECO	Fri, Jun 28, 2002	2.40	2.40	2.40	2.40
2171	NASDAQ	CECO	Thu, Jun 27, 2002	2.50	2.60	2.40	2.60
2170	NASDAQ	CECO	Wed, Jun 26, 2002	2.60	2.60	2.50	2.50
2169	NASDAQ	CECO	Tue, Jun 25, 2002	2.51	2.60	2.51	2.60
2168	NASDAQ	CECO	Mon, Jun 24, 2002	2.80	2.80	2.25	2.60
2167	NASDAQ	CECO	Fri, Jun 21, 2002	2.65	2.75	2.50	2.75
2166	NASDAQ	CECO	Thu, Jun 20, 2002	2.90	2.90	2.75	2.75
2165	NASDAQ	CECO	Wed, Jun 19, 2002	2.99	2.99	2.99	2.99
2164	NASDAQ	CECO	Tue, Jun 18, 2002	3.04	3.04	2.90	2.90
2163	NASDAQ	CECO	Mon, Jun 17, 2002	2.91	2.92	2.72	2.92
2162	NASDAQ	CECO	Fri, Jun 14, 2002	2.91	2.92	2.91	2.92
2161	NASDAQ	CECO	Thu, Jun 13, 2002	2.85	2.98	2.82	2.96
2160	NASDAQ	CECO	Wed, Jun 12, 2002	2.98	2.98	2.66	2.97
2159	NASDAQ	CECO	Tue, Jun 11, 2002	2.95	2.95	2.95	2.95
2158	NASDAQ	CECO	Mon, Jun 10, 2002	2.95	2.95	2.95	2.95
2157	NASDAQ	CECO	Fri, Jun 7, 2002	2.90	3.00	2.81	3.00
2156	NASDAQ	CECO	Wed, Jun 5, 2002	3.10	3.10	3.10	3.10
2155	NASDAQ	CECO	Mon, Jun 3, 2002	3.20	3.20	3.20	3.20
2154	NASDAQ	CECO	Fri, May 31, 2002	3.10	3.10	3.00	3.00
2153	NASDAQ	CECO	Thu, May 30, 2002	2.90	2.90	2.85	2.85
2152	NASDAQ	CECO	Wed, May 29, 2002	3.00	3.02	2.85	2.85
2151	NASDAQ	CECO	Tue, May 28, 2002	3.01	3.13	3.00	3.00
2150	NASDAQ	CECO	Fri, May 24, 2002	3.06	3.10	3.05	3.10
2149	NASDAQ	CECO	Thu, May 23, 2002	3.08	3.13	3.08	3.13
2148	NASDAQ	CECO	Wed, May 22, 2002	2.96	3.03	2.70	3.00
2147	NASDAQ	CECO	Tue, May 21, 2002	3.12	3.12	2.95	2.96
2146	NASDAQ	CECO	Fri, May 17, 2002	3.18	3.18	3.15	3.15
2145	NASDAQ	CECO	Thu, May 16, 2002	3.30	3.30	3.25	3.25
2144	NASDAQ	CECO	Wed, May 15, 2002	3.25	3.25	3.25	3.25
2143	NASDAQ	CECO	Tue, May 14, 2002	3.25	3.25	3.18	3.18
2142	NASDAQ	CECO	Mon, May 13, 2002	3.25	3.25	3.10	3.10
2141	NASDAQ	CECO	Fri, May 10, 2002	3.25	3.25	3.25	3.25
2140	NASDAQ	CECO	Thu, May 9, 2002	3.30	3.30	3.25	3.25
2139	NASDAQ	CECO	Wed, May 8, 2002	3.15	3.35	2.66	3.35
2138	NASDAQ	CECO	Tue, May 7, 2002	3.30	3.30	3.30	3.30
2137	NASDAQ	CECO	Mon, May 6, 2002	3.21	3.25	3.10	3.25
2136	NASDAQ	CECO	Fri, May 3, 2002	3.30	3.32	3.30	3.30
2135	NASDAQ	CECO	Thu, May 2, 2002	3.40	3.50	3.40	3.40
2134	NASDAQ	CECO	Wed, May 1, 2002	3.41	3.45	3.41	3.45
2133	NASDAQ	CECO	Tue, Apr 30, 2002	3.50	3.50	3.25	3.50
2132	NASDAQ	CECO	Mon, Apr 29, 2002	3.51	3.55	3.46	3.50
2131	NASDAQ	CECO	Fri, Apr 26, 2002	3.50	3.51	3.50	3.51
2130	NASDAQ	CECO	Thu, Apr 25, 2002	3.50	3.60	3.50	3.60
2129	NASDAQ	CECO	Wed, Apr 24, 2002	3.65	3.65	3.60	3.60
2128	NASDAQ	CECO	Tue, Apr 23, 2002	3.53	3.53	3.51	3.51
2127	NASDAQ	CECO	Fri, Apr 19, 2002	3.84	3.84	3.61	3.61
2126	NASDAQ	CECO	Wed, Apr 17, 2002	3.71	3.71	3.71	3.71
2125	NASDAQ	CECO	Tue, Apr 16, 2002	3.52	3.80	3.52	3.80
2124	NASDAQ	CECO	Mon, Apr 15, 2002	3.59	3.59	3.58	3.58
2123	NASDAQ	CECO	Fri, Apr 12, 2002	3.70	3.70	3.52	3.52
2122	NASDAQ	CECO	Thu, Apr 11, 2002	3.75	3.81	3.75	3.81
2121	NASDAQ	CECO	Wed, Apr 10, 2002	3.75	3.80	3.70	3.70
2120	NASDAQ	CECO	Tue, Apr 9, 2002	3.80	3.89	3.60	3.70
2119	NASDAQ	CECO	Fri, Apr 5, 2002	3.85	3.85	3.75	3.85
2118	NASDAQ	CECO	Thu, Apr 4, 2002	3.85	3.95	3.85	3.85
2117	NASDAQ	CECO	Wed, Apr 3, 2002	3.70	3.95	3.70	3.85
2116	NASDAQ	CECO	Tue, Apr 2, 2002	3.70	3.75	3.51	3.70
2115	NASDAQ	CECO	Mon, Apr 1, 2002	3.71	3.80	3.71	3.80
2114	NASDAQ	CECO	Thu, Mar 28, 2002	3.75	3.80	3.67	3.80
2113	NASDAQ	CECO	Wed, Mar 27, 2002	3.89	3.90	3.80	3.80
2112	NASDAQ	CECO	Tue, Mar 26, 2002	3.85	3.95	3.80	3.90
2111	NASDAQ	CECO	Mon, Mar 25, 2002	3.85	3.90	3.85	3.85
2110	NASDAQ	CECO	Fri, Mar 22, 2002	3.85	3.90	3.70	3.90
2109	NASDAQ	CECO	Thu, Mar 21, 2002	3.90	3.90	3.80	3.82
2108	NASDAQ	CECO	Wed, Mar 20, 2002	3.94	3.94	3.68	3.89
2107	NASDAQ	CECO	Tue, Mar 19, 2002	3.72	3.90	3.72	3.89
2106	NASDAQ	CECO	Mon, Mar 18, 2002	3.71	3.71	3.71	3.71
2105	NASDAQ	CECO	Fri, Mar 15, 2002	3.55	3.72	3.55	3.70
2104	NASDAQ	CECO	Thu, Mar 14, 2002	3.50	3.69	3.50	3.60
2103	NASDAQ	CECO	Wed, Mar 13, 2002	3.70	3.70	3.42	3.70
2102	NASDAQ	CECO	Tue, Mar 12, 2002	3.58	3.73	3.58	3.73
2101	NASDAQ	CECO	Mon, Mar 11, 2002	3.75	3.85	3.59	3.70
2100	NASDAQ	CECO	Fri, Mar 8, 2002	3.75	3.75	3.54	3.70
2099	NASDAQ	CECO	Thu, Mar 7, 2002	3.60	3.69	3.60	3.69
2098	NASDAQ	CECO	Wed, Mar 6, 2002	3.72	3.75	3.58	3.69
2097	NASDAQ	CECO	Tue, Mar 5, 2002	3.34	3.72	3.34	3.72
2096	NASDAQ	CECO	Mon, Mar 4, 2002	3.25	3.34	3.25	3.34
2095	NASDAQ	CECO	Fri, Mar 1, 2002	3.30	3.36	3.30	3.30
2094	NASDAQ	CECO	Thu, Feb 28, 2002	3.33	3.33	3.28	3.28
2093	NASDAQ	CECO	Wed, Feb 27, 2002	3.35	3.35	3.32	3.32
2092	NASDAQ	CECO	Tue, Feb 26, 2002	3.32	3.37	3.32	3.37
2091	NASDAQ	CECO	Mon, Feb 25, 2002	3.29	3.38	3.29	3.38
2090	NASDAQ	CECO	Fri, Feb 22, 2002	3.29	3.30	3.29	3.29
2089	NASDAQ	CECO	Thu, Feb 21, 2002	3.30	3.30	3.23	3.27
2088	NASDAQ	CECO	Wed, Feb 20, 2002	3.27	3.30	3.23	3.30
2087	NASDAQ	CECO	Tue, Feb 19, 2002	3.27	3.27	3.26	3.26
2086	NASDAQ	CECO	Fri, Feb 15, 2002	3.28	3.30	3.24	3.24
2085	NASDAQ	CECO	Thu, Feb 14, 2002	3.20	3.26	3.20	3.26
2084	NASDAQ	CECO	Wed, Feb 13, 2002	3.15	3.26	3.15	3.15
2083	NASDAQ	CECO	Tue, Feb 12, 2002	3.15	3.15	3.15	3.15
2082	NASDAQ	CECO	Mon, Feb 11, 2002	3.24	3.25	3.12	3.20
2081	NASDAQ	CECO	Fri, Feb 8, 2002	3.20	3.25	3.12	3.25
2080	NASDAQ	CECO	Thu, Feb 7, 2002	3.15	3.20	3.12	3.20
2079	NASDAQ	CECO	Wed, Feb 6, 2002	3.19	3.29	3.15	3.15
2078	NASDAQ	CECO	Tue, Feb 5, 2002	3.15	3.19	3.15	3.15
2077	NASDAQ	CECO	Mon, Feb 4, 2002	3.35	3.39	3.15	3.15
2076	NASDAQ	CECO	Fri, Feb 1, 2002	3.34	3.35	3.25	3.35
2075	NASDAQ	CECO	Thu, Jan 31, 2002	3.27	3.39	3.25	3.36
2074	NASDAQ	CECO	Wed, Jan 30, 2002	3.13	3.25	3.13	3.20
2073	NASDAQ	CECO	Tue, Jan 29, 2002	3.24	3.24	3.16	3.17
2072	NASDAQ	CECO	Mon, Jan 28, 2002	3.17	3.26	3.17	3.18
2071	NASDAQ	CECO	Fri, Jan 25, 2002	3.15	3.29	3.12	3.17
2070	NASDAQ	CECO	Thu, Jan 24, 2002	3.30	3.30	3.20	3.30
2069	NASDAQ	CECO	Wed, Jan 23, 2002	3.44	3.50	3.31	3.31
2068	NASDAQ	CECO	Tue, Jan 22, 2002	3.31	3.40	3.31	3.40
2067	NASDAQ	CECO	Fri, Jan 18, 2002	3.42	3.42	3.35	3.35
2066	NASDAQ	CECO	Thu, Jan 17, 2002	3.45	3.45	3.34	3.42
2065	NASDAQ	CECO	Wed, Jan 16, 2002	3.22	3.48	3.20	3.45
2064	NASDAQ	CECO	Tue, Jan 15, 2002	3.12	3.25	3.12	3.23
2063	NASDAQ	CECO	Mon, Jan 14, 2002	3.40	3.42	3.02	3.25
2062	NASDAQ	CECO	Fri, Jan 11, 2002	3.25	3.39	3.22	3.35
2061	NASDAQ	CECO	Thu, Jan 10, 2002	3.16	3.25	3.16	3.24
2060	NASDAQ	CECO	Wed, Jan 9, 2002	3.15	3.24	3.10	3.24
2059	NASDAQ	CECO	Tue, Jan 8, 2002	3.15	3.20	3.13	3.15
2058	NASDAQ	CECO	Mon, Jan 7, 2002	3.20	3.21	3.08	3.13
2057	NASDAQ	CECO	Fri, Jan 4, 2002	3.10	3.20	3.08	3.19
2056	NASDAQ	CECO	Thu, Jan 3, 2002	3.20	3.25	3.15	3.20
2055	NASDAQ	CECO	Wed, Jan 2, 2002	3.26	3.29	3.11	3.29
2054	NASDAQ	CECO	Mon, Dec 31, 2001	3.25	3.35	3.25	3.30
2053	NASDAQ	CECO	Fri, Dec 28, 2001	3.34	3.41	3.15	3.30
2052	NASDAQ	CECO	Thu, Dec 27, 2001	3.25	3.34	3.25	3.30
2051	NASDAQ	CECO	Wed, Dec 26, 2001	3.25	3.25	3.20	3.24
2050	NASDAQ	CECO	Mon, Dec 24, 2001	3.35	3.35	3.25	3.25
2049	NASDAQ	CECO	Fri, Dec 21, 2001	3.28	3.40	3.20	3.40
2048	NASDAQ	CECO	Thu, Dec 20, 2001	3.35	3.39	3.24	3.28
2047	NASDAQ	CECO	Wed, Dec 19, 2001	3.21	3.40	3.20	3.37
2046	NASDAQ	CECO	Tue, Dec 18, 2001	3.30	3.34	3.26	3.30
2045	NASDAQ	CECO	Mon, Dec 17, 2001	3.30	3.35	3.23	3.30
2044	NASDAQ	CECO	Fri, Dec 14, 2001	3.26	3.40	3.23	3.32
2043	NASDAQ	CECO	Thu, Dec 13, 2001	3.26	3.35	3.26	3.26
2042	NASDAQ	CECO	Wed, Dec 12, 2001	3.35	3.35	3.09	3.30
2041	NASDAQ	CECO	Tue, Dec 11, 2001	3.39	3.39	3.25	3.39
2040	NASDAQ	CECO	Mon, Dec 10, 2001	3.36	3.40	3.35	3.36
2039	NASDAQ	CECO	Fri, Dec 7, 2001	3.40	3.45	3.35	3.35
2038	NASDAQ	CECO	Thu, Dec 6, 2001	3.35	3.40	3.19	3.40
2037	NASDAQ	CECO	Wed, Dec 5, 2001	3.44	3.55	3.15	3.40
2036	NASDAQ	CECO	Tue, Dec 4, 2001	3.39	3.44	3.25	3.40
2035	NASDAQ	CECO	Mon, Dec 3, 2001	3.55	3.55	3.15	3.35
2034	NASDAQ	CECO	Fri, Nov 30, 2001	3.54	3.62	3.45	3.52
2033	NASDAQ	CECO	Thu, Nov 29, 2001	3.48	3.64	3.42	3.49
2032	NASDAQ	CECO	Wed, Nov 28, 2001	3.46	3.49	3.35	3.40
2031	NASDAQ	CECO	Tue, Nov 27, 2001	3.50	3.50	3.37	3.46
2030	NASDAQ	CECO	Mon, Nov 26, 2001	3.37	3.49	3.37	3.49
2029	NASDAQ	CECO	Fri, Nov 23, 2001	3.40	3.40	3.35	3.35
2028	NASDAQ	CECO	Wed, Nov 21, 2001	3.40	3.40	3.26	3.40
2027	NASDAQ	CECO	Tue, Nov 20, 2001	3.45	3.50	3.30	3.40
2026	NASDAQ	CECO	Mon, Nov 19, 2001	3.48	3.48	3.25	3.45
2025	NASDAQ	CECO	Fri, Nov 16, 2001	3.48	3.59	3.26	3.48
2024	NASDAQ	CECO	Thu, Nov 15, 2001	3.54	3.59	3.15	3.40
2023	NASDAQ	CECO	Wed, Nov 14, 2001	3.84	3.85	3.42	3.50
2022	NASDAQ	CECO	Tue, Nov 13, 2001	3.67	3.85	3.67	3.80
2021	NASDAQ	CECO	Mon, Nov 12, 2001	3.50	3.65	3.30	3.65
2020	NASDAQ	CECO	Fri, Nov 9, 2001	3.85	3.88	3.26	3.50
2019	NASDAQ	CECO	Thu, Nov 8, 2001	4.11	4.11	3.65	3.90
2018	NASDAQ	CECO	Wed, Nov 7, 2001	3.69	3.85	3.68	3.71
2017	NASDAQ	CECO	Tue, Nov 6, 2001	4.04	4.15	3.61	3.90
2016	NASDAQ	CECO	Mon, Nov 5, 2001	4.19	4.19	4.05	4.05
2015	NASDAQ	CECO	Fri, Nov 2, 2001	4.25	4.25	4.00	4.15
2014	NASDAQ	CECO	Thu, Nov 1, 2001	4.20	4.26	4.00	4.25
2013	NASDAQ	CECO	Wed, Oct 31, 2001	4.01	4.25	4.00	4.20
2012	NASDAQ	CECO	Tue, Oct 30, 2001	4.26	4.30	3.75	4.05
2011	NASDAQ	CECO	Mon, Oct 29, 2001	3.77	4.29	3.76	4.25
2010	NASDAQ	CECO	Fri, Oct 26, 2001	4.40	4.60	3.00	3.85
2009	NASDAQ	CECO	Thu, Oct 25, 2001	3.92	4.40	3.80	4.33
2008	NASDAQ	CECO	Wed, Oct 24, 2001	3.57	3.79	3.49	3.79
2007	NASDAQ	CECO	Tue, Oct 23, 2001	3.65	3.75	3.35	3.52
2006	NASDAQ	CECO	Mon, Oct 22, 2001	3.05	3.65	3.02	3.60
2005	NASDAQ	CECO	Fri, Oct 19, 2001	3.25	3.30	2.82	3.18
2004	NASDAQ	CECO	Thu, Oct 18, 2001	2.49	3.30	2.49	3.25
2003	NASDAQ	CECO	Wed, Oct 17, 2001	2.39	2.48	2.39	2.48
2002	NASDAQ	CECO	Mon, Oct 15, 2001	2.20	2.39	2.20	2.39
2001	NASDAQ	CECO	Fri, Oct 12, 2001	2.44	2.44	2.16	2.20
2000	NASDAQ	CECO	Thu, Oct 11, 2001	2.26	2.49	2.26	2.40
1999	NASDAQ	CECO	Wed, Oct 10, 2001	2.09	2.31	2.09	2.31
1998	NASDAQ	CECO	Mon, Oct 8, 2001	2.05	2.05	2.05	2.05
1997	NASDAQ	CECO	Fri, Oct 5, 2001	2.10	2.10	2.01	2.01
1996	NASDAQ	CECO	Thu, Oct 4, 2001	2.15	2.15	2.15	2.15
1995	NASDAQ	CECO	Wed, Oct 3, 2001	2.25	2.25	2.20	2.25
1994	NASDAQ	CECO	Tue, Oct 2, 2001	2.20	2.20	2.20	2.20
1993	NASDAQ	CECO	Mon, Oct 1, 2001	2.10	2.37	2.10	2.15
1992	NASDAQ	CECO	Fri, Sep 28, 2001	2.29	2.30	2.22	2.22
1991	NASDAQ	CECO	Thu, Sep 27, 2001	2.25	2.25	2.20	2.22
1990	NASDAQ	CECO	Wed, Sep 26, 2001	2.15	2.16	2.15	2.15
1989	NASDAQ	CECO	Tue, Sep 25, 2001	2.20	2.22	2.20	2.22
1988	NASDAQ	CECO	Mon, Sep 24, 2001	2.04	2.16	2.04	2.16
1987	NASDAQ	CECO	Fri, Sep 21, 2001	2.02	2.02	2.00	2.00
1986	NASDAQ	CECO	Thu, Sep 20, 2001	2.05	2.05	2.02	2.02
1985	NASDAQ	CECO	Wed, Sep 19, 2001	2.10	2.10	2.10	2.10
1984	NASDAQ	CECO	Tue, Sep 18, 2001	2.10	2.15	1.84	2.14
1983	NASDAQ	CECO	Mon, Sep 17, 2001	2.16	2.21	2.16	2.20
1982	NASDAQ	CECO	Mon, Sep 10, 2001	2.25	2.25	2.15	2.21
1981	NASDAQ	CECO	Fri, Sep 7, 2001	2.25	2.33	2.09	2.25
1980	NASDAQ	CECO	Thu, Sep 6, 2001	2.20	2.30	2.20	2.30
1979	NASDAQ	CECO	Wed, Sep 5, 2001	2.27	2.32	2.25	2.25
1978	NASDAQ	CECO	Tue, Sep 4, 2001	2.07	2.25	2.06	2.25
1977	NASDAQ	CECO	Fri, Aug 31, 2001	2.10	2.10	2.10	2.10
1976	NASDAQ	CECO	Thu, Aug 30, 2001	2.10	2.10	2.10	2.10
1975	NASDAQ	CECO	Wed, Aug 29, 2001	2.10	2.24	2.10	2.11
1974	NASDAQ	CECO	Tue, Aug 28, 2001	2.03	2.04	2.00	2.01
1973	NASDAQ	CECO	Mon, Aug 27, 2001	1.95	1.95	1.95	1.95
1972	NASDAQ	CECO	Fri, Aug 24, 2001	2.04	2.11	1.90	2.03
1971	NASDAQ	CECO	Thu, Aug 23, 2001	2.00	2.03	1.95	2.00
1970	NASDAQ	CECO	Wed, Aug 22, 2001	1.92	1.97	1.92	1.97
1969	NASDAQ	CECO	Tue, Aug 21, 2001	1.85	1.90	1.85	1.86
1968	NASDAQ	CECO	Mon, Aug 20, 2001	1.90	1.90	1.85	1.85
1967	NASDAQ	CECO	Fri, Aug 17, 2001	1.80	1.85	1.80	1.85
1966	NASDAQ	CECO	Thu, Aug 16, 2001	1.90	1.90	1.90	1.90
1965	NASDAQ	CECO	Wed, Aug 15, 2001	1.88	1.88	1.88	1.88
1964	NASDAQ	CECO	Fri, Aug 10, 2001	1.80	1.80	1.80	1.80
1963	NASDAQ	CECO	Thu, Aug 9, 2001	1.85	1.85	1.85	1.85
1962	NASDAQ	CECO	Wed, Aug 8, 2001	1.76	1.76	1.76	1.76
1961	NASDAQ	CECO	Tue, Aug 7, 2001	1.81	1.81	1.80	1.80
1960	NASDAQ	CECO	Fri, Aug 3, 2001	1.87	1.88	1.85	1.85
1959	NASDAQ	CECO	Thu, Aug 2, 2001	1.92	1.92	1.90	1.90
1958	NASDAQ	CECO	Wed, Aug 1, 2001	1.92	1.92	1.92	1.92
1957	NASDAQ	CECO	Tue, Jul 31, 2001	1.87	2.00	1.87	2.00
1956	NASDAQ	CECO	Fri, Jul 27, 2001	1.90	1.90	1.90	1.90
1955	NASDAQ	CECO	Thu, Jul 26, 2001	1.91	1.91	1.91	1.91
1954	NASDAQ	CECO	Wed, Jul 25, 2001	1.96	1.98	1.91	1.91
1953	NASDAQ	CECO	Tue, Jul 24, 2001	1.95	1.95	1.85	1.90
1952	NASDAQ	CECO	Thu, Jul 19, 2001	1.81	1.81	1.80	1.81
1951	NASDAQ	CECO	Wed, Jul 18, 2001	1.75	1.90	1.75	1.90
1950	NASDAQ	CECO	Mon, Jul 16, 2001	2.03	2.03	1.95	1.95
1949	NASDAQ	CECO	Fri, Jul 13, 2001	1.95	2.02	1.95	1.95
1948	NASDAQ	CECO	Wed, Jul 11, 2001	1.95	1.95	1.95	1.95
1947	NASDAQ	CECO	Fri, Jul 6, 2001	1.90	1.90	1.90	1.90
1946	NASDAQ	CECO	Thu, Jul 5, 2001	1.95	2.00	1.90	1.90
1945	NASDAQ	CECO	Thu, Jun 28, 2001	1.99	2.00	1.99	2.00
1944	NASDAQ	CECO	Wed, Jun 27, 2001	1.95	1.95	1.95	1.95
1943	NASDAQ	CECO	Tue, Jun 26, 2001	1.89	1.89	1.89	1.89
1942	NASDAQ	CECO	Mon, Jun 25, 2001	1.90	1.90	1.84	1.84
1941	NASDAQ	CECO	Fri, Jun 22, 2001	2.04	2.04	1.96	1.96
1940	NASDAQ	CECO	Tue, Jun 19, 2001	2.10	2.10	2.00	2.04
1939	NASDAQ	CECO	Mon, Jun 18, 2001	2.10	2.10	2.00	2.00
1938	NASDAQ	CECO	Fri, Jun 15, 2001	2.10	2.10	2.10	2.10
1937	NASDAQ	CECO	Thu, Jun 14, 2001	2.15	2.15	2.15	2.15
1936	NASDAQ	CECO	Wed, Jun 13, 2001	2.19	2.20	2.15	2.15
1935	NASDAQ	CECO	Tue, Jun 12, 2001	2.15	2.15	2.15	2.15
1934	NASDAQ	CECO	Mon, Jun 11, 2001	2.05	2.19	2.05	2.19
1933	NASDAQ	CECO	Wed, Jun 6, 2001	2.10	2.16	2.01	2.16
1932	NASDAQ	CECO	Tue, Jun 5, 2001	2.20	2.20	2.15	2.15
1931	NASDAQ	CECO	Fri, Jun 1, 2001	2.15	2.15	2.10	2.10
1930	NASDAQ	CECO	Thu, May 31, 2001	2.01	2.15	2.01	2.10
1929	NASDAQ	CECO	Wed, May 30, 2001	2.11	2.11	2.06	2.06
1928	NASDAQ	CECO	Tue, May 29, 2001	2.30	2.30	2.10	2.11
1927	NASDAQ	CECO	Fri, May 25, 2001	2.40	2.40	2.30	2.30
1926	NASDAQ	CECO	Tue, May 22, 2001	2.20	2.25	2.15	2.15
1925	NASDAQ	CECO	Mon, May 21, 2001	2.15	2.15	2.15	2.15
1924	NASDAQ	CECO	Fri, May 18, 2001	2.25	2.25	2.15	2.25
1923	NASDAQ	CECO	Thu, May 17, 2001	2.15	2.20	2.10	2.20
1922	NASDAQ	CECO	Wed, May 16, 2001	1.94	2.15	1.94	2.10
1921	NASDAQ	CECO	Tue, May 15, 2001	2.06	2.06	1.91	2.00
1920	NASDAQ	CECO	Mon, May 14, 2001	2.15	2.15	2.10	2.10
1919	NASDAQ	CECO	Fri, May 11, 2001	2.14	2.14	2.14	2.14
1918	NASDAQ	CECO	Thu, May 10, 2001	2.15	2.15	2.05	2.15
1917	NASDAQ	CECO	Wed, May 9, 2001	2.12	2.12	2.11	2.12
1916	NASDAQ	CECO	Tue, May 8, 2001	2.05	2.13	2.05	2.13
1915	NASDAQ	CECO	Mon, May 7, 2001	2.05	2.05	2.05	2.05
1914	NASDAQ	CECO	Thu, May 3, 2001	2.05	2.05	1.93	1.96
1913	NASDAQ	CECO	Wed, May 2, 2001	1.96	2.00	1.96	2.00
1912	NASDAQ	CECO	Tue, May 1, 2001	1.96	2.00	1.96	2.00
1911	NASDAQ	CECO	Mon, Apr 30, 2001	2.03	2.03	2.00	2.00
1910	NASDAQ	CECO	Fri, Apr 27, 2001	2.05	2.05	2.03	2.03
1909	NASDAQ	CECO	Thu, Apr 26, 2001	1.96	2.03	1.96	2.03
1908	NASDAQ	CECO	Wed, Apr 25, 2001	2.00	2.05	2.00	2.00
1907	NASDAQ	CECO	Tue, Apr 24, 2001	1.85	1.96	1.70	1.95
1906	NASDAQ	CECO	Mon, Apr 23, 2001	1.85	1.88	1.85	1.88
1905	NASDAQ	CECO	Fri, Apr 20, 2001	1.85	1.86	1.81	1.85
1904	NASDAQ	CECO	Thu, Apr 19, 2001	1.79	1.85	1.79	1.85
1903	NASDAQ	CECO	Wed, Apr 18, 2001	1.62	1.80	1.60	1.80
1902	NASDAQ	CECO	Mon, Apr 16, 2001	1.60	1.60	1.60	1.60
1901	NASDAQ	CECO	Thu, Apr 12, 2001	1.60	1.75	1.60	1.75
1900	NASDAQ	CECO	Wed, Apr 11, 2001	1.50	1.71	1.50	1.71
1899	NASDAQ	CECO	Tue, Apr 10, 2001	1.51	1.74	1.51	1.71
1898	NASDAQ	CECO	Mon, Apr 9, 2001	1.50	1.85	1.45	1.60
1897	NASDAQ	CECO	Fri, Apr 6, 2001	1.50	1.50	1.50	1.50
1896	NASDAQ	CECO	Thu, Apr 5, 2001	1.63	1.63	1.38	1.38
1895	NASDAQ	CECO	Wed, Apr 4, 2001	1.63	1.63	1.63	1.63
1894	NASDAQ	CECO	Tue, Apr 3, 2001	1.75	1.75	1.75	1.75
1893	NASDAQ	CECO	Mon, Apr 2, 2001	1.75	1.75	1.75	1.75
1892	NASDAQ	CECO	Fri, Mar 30, 2001	1.78	1.78	1.75	1.75
1891	NASDAQ	CECO	Thu, Mar 29, 2001	1.88	1.91	1.84	1.91
1890	NASDAQ	CECO	Wed, Mar 28, 2001	1.97	1.97	1.88	1.88
1889	NASDAQ	CECO	Tue, Mar 27, 2001	2.00	2.00	1.97	1.97
1888	NASDAQ	CECO	Mon, Mar 26, 2001	1.84	1.97	1.84	1.97
1887	NASDAQ	CECO	Fri, Mar 23, 2001	1.81	1.88	1.78	1.78
1886	NASDAQ	CECO	Thu, Mar 22, 2001	1.88	1.88	1.84	1.84
1885	NASDAQ	CECO	Wed, Mar 21, 2001	1.94	1.95	1.88	1.91
1884	NASDAQ	CECO	Tue, Mar 20, 2001	1.94	1.97	1.94	1.97
1883	NASDAQ	CECO	Mon, Mar 19, 2001	1.91	1.94	1.91	1.94
1882	NASDAQ	CECO	Fri, Mar 16, 2001	1.88	1.88	1.88	1.88
1881	NASDAQ	CECO	Thu, Mar 15, 2001	1.91	1.91	1.88	1.88
1880	NASDAQ	CECO	Wed, Mar 14, 2001	1.91	1.91	1.91	1.91
1879	NASDAQ	CECO	Tue, Mar 13, 2001	1.91	1.91	1.91	1.91
1878	NASDAQ	CECO	Mon, Mar 12, 2001	1.91	1.94	1.91	1.94
1877	NASDAQ	CECO	Fri, Mar 9, 2001	1.91	1.97	1.91	1.91
1876	NASDAQ	CECO	Wed, Mar 7, 2001	2.00	2.00	2.00	2.00
1875	NASDAQ	CECO	Tue, Mar 6, 2001	1.88	2.00	1.84	2.00
1874	NASDAQ	CECO	Mon, Mar 5, 2001	1.88	1.88	1.75	1.75
1873	NASDAQ	CECO	Fri, Mar 2, 2001	1.94	2.00	1.94	2.00
1872	NASDAQ	CECO	Thu, Mar 1, 2001	1.88	1.88	1.88	1.88
1871	NASDAQ	CECO	Wed, Feb 28, 2001	1.88	1.88	1.88	1.88
1870	NASDAQ	CECO	Tue, Feb 27, 2001	2.06	2.06	2.00	2.00
1869	NASDAQ	CECO	Mon, Feb 26, 2001	2.00	2.00	1.88	1.88
1868	NASDAQ	CECO	Fri, Feb 23, 2001	1.88	2.00	1.88	2.00
1867	NASDAQ	CECO	Thu, Feb 22, 2001	2.00	2.06	2.00	2.00
1866	NASDAQ	CECO	Wed, Feb 21, 2001	2.00	2.00	2.00	2.00
1865	NASDAQ	CECO	Tue, Feb 20, 2001	2.00	2.09	2.00	2.06
1864	NASDAQ	CECO	Fri, Feb 16, 2001	2.09	2.09	2.09	2.09
1863	NASDAQ	CECO	Thu, Feb 15, 2001	2.06	2.09	2.06	2.09
1862	NASDAQ	CECO	Wed, Feb 14, 2001	2.00	2.00	2.00	2.00
1861	NASDAQ	CECO	Tue, Feb 13, 2001	2.00	2.00	2.00	2.00
1860	NASDAQ	CECO	Mon, Feb 12, 2001	1.88	1.88	1.88	1.88
1859	NASDAQ	CECO	Thu, Feb 8, 2001	2.06	2.13	2.00	2.00
1858	NASDAQ	CECO	Wed, Feb 7, 2001	2.03	2.06	1.94	2.00
1857	NASDAQ	CECO	Tue, Feb 6, 2001	1.88	2.00	1.81	2.00
1856	NASDAQ	CECO	Mon, Feb 5, 2001	1.80	1.91	1.78	1.88
1855	NASDAQ	CECO	Fri, Feb 2, 2001	1.86	1.91	1.86	1.91
1854	NASDAQ	CECO	Thu, Feb 1, 2001	1.81	1.81	1.81	1.81
1853	NASDAQ	CECO	Wed, Jan 31, 2001	2.00	2.00	1.94	1.94
1852	NASDAQ	CECO	Tue, Jan 30, 2001	1.94	1.94	1.94	1.94
1851	NASDAQ	CECO	Mon, Jan 29, 2001	2.06	2.06	1.94	2.00
1850	NASDAQ	CECO	Thu, Jan 25, 2001	2.06	2.06	2.06	2.06
1849	NASDAQ	CECO	Wed, Jan 24, 2001	1.94	2.06	1.94	2.06
1848	NASDAQ	CECO	Tue, Jan 23, 2001	1.94	1.94	1.94	1.94
1847	NASDAQ	CECO	Mon, Jan 22, 2001	1.98	2.00	1.88	1.88
1846	NASDAQ	CECO	Fri, Jan 19, 2001	2.00	2.00	2.00	2.00
1845	NASDAQ	CECO	Thu, Jan 18, 2001	2.03	2.06	2.00	2.06
1844	NASDAQ	CECO	Wed, Jan 17, 2001	2.00	2.06	2.00	2.06
1843	NASDAQ	CECO	Tue, Jan 16, 2001	1.91	2.00	1.84	2.00
1842	NASDAQ	CECO	Fri, Jan 12, 2001	1.88	1.91	1.75	1.91
1841	NASDAQ	CECO	Thu, Jan 11, 2001	1.63	1.81	1.63	1.81
1840	NASDAQ	CECO	Wed, Jan 10, 2001	1.63	1.75	1.63	1.63
1839	NASDAQ	CECO	Tue, Jan 9, 2001	1.56	1.56	1.44	1.50
1838	NASDAQ	CECO	Mon, Jan 8, 2001	1.69	1.69	1.66	1.66
1837	NASDAQ	CECO	Fri, Jan 5, 2001	1.56	1.56	1.56	1.56
1836	NASDAQ	CECO	Thu, Jan 4, 2001	1.50	1.50	1.50	1.50
1835	NASDAQ	CECO	Wed, Jan 3, 2001	1.50	1.50	1.44	1.44
1834	NASDAQ	CECO	Fri, Dec 29, 2000	1.38	1.50	1.13	1.38
1833	NASDAQ	CECO	Thu, Dec 28, 2000	1.38	1.50	1.25	1.38
1832	NASDAQ	CECO	Wed, Dec 27, 2000	1.38	1.50	1.31	1.39
1831	NASDAQ	CECO	Tue, Dec 26, 2000	1.38	1.41	1.34	1.41
1830	NASDAQ	CECO	Fri, Dec 22, 2000	1.38	1.50	1.38	1.41
1829	NASDAQ	CECO	Thu, Dec 21, 2000	1.47	1.47	1.34	1.38
1828	NASDAQ	CECO	Wed, Dec 20, 2000	1.50	1.50	1.47	1.47
1827	NASDAQ	CECO	Tue, Dec 19, 2000	1.50	1.53	1.47	1.47
1826	NASDAQ	CECO	Mon, Dec 18, 2000	1.53	1.53	1.50	1.50
1825	NASDAQ	CECO	Fri, Dec 15, 2000	1.50	1.56	1.50	1.56
1824	NASDAQ	CECO	Thu, Dec 14, 2000	1.50	1.53	1.50	1.50
1823	NASDAQ	CECO	Wed, Dec 13, 2000	1.50	1.50	1.50	1.50
1822	NASDAQ	CECO	Tue, Dec 12, 2000	1.53	1.63	1.50	1.50
1821	NASDAQ	CECO	Mon, Dec 11, 2000	1.63	1.63	1.53	1.53
1820	NASDAQ	CECO	Fri, Dec 8, 2000	1.63	1.69	1.56	1.56
1819	NASDAQ	CECO	Thu, Dec 7, 2000	1.66	1.66	1.53	1.53
1818	NASDAQ	CECO	Wed, Dec 6, 2000	1.66	1.66	1.66	1.66
1817	NASDAQ	CECO	Tue, Dec 5, 2000	1.63	1.75	1.63	1.75
1816	NASDAQ	CECO	Mon, Dec 4, 2000	1.56	1.56	1.56	1.56
1815	NASDAQ	CECO	Fri, Dec 1, 2000	1.56	1.59	1.53	1.59
1814	NASDAQ	CECO	Tue, Nov 28, 2000	1.56	1.88	1.56	1.63
1813	NASDAQ	CECO	Mon, Nov 27, 2000	1.75	2.00	1.50	1.56
1812	NASDAQ	CECO	Fri, Nov 24, 2000	1.75	1.75	1.69	1.69
1811	NASDAQ	CECO	Tue, Nov 21, 2000	1.63	1.69	1.50	1.69
1810	NASDAQ	CECO	Mon, Nov 20, 2000	1.69	1.69	1.69	1.69
1809	NASDAQ	CECO	Fri, Nov 17, 2000	1.69	1.69	1.69	1.69
1808	NASDAQ	CECO	Thu, Nov 16, 2000	1.72	1.72	1.72	1.72
1807	NASDAQ	CECO	Wed, Nov 15, 2000	1.72	1.72	1.72	1.72
1806	NASDAQ	CECO	Tue, Nov 14, 2000	1.75	1.75	1.72	1.72
1805	NASDAQ	CECO	Mon, Nov 13, 2000	1.72	1.75	1.72	1.75
1804	NASDAQ	CECO	Fri, Nov 10, 2000	2.13	2.13	1.75	1.94
1803	NASDAQ	CECO	Thu, Nov 9, 2000	2.13	2.31	1.94	2.13
1802	NASDAQ	CECO	Wed, Nov 8, 2000	2.13	2.13	2.13	2.13
1801	NASDAQ	CECO	Tue, Nov 7, 2000	2.05	2.19	2.05	2.19
1800	NASDAQ	CECO	Mon, Nov 6, 2000	2.13	2.25	2.13	2.25
1799	NASDAQ	CECO	Fri, Nov 3, 2000	1.94	2.06	1.94	2.06
1798	NASDAQ	CECO	Thu, Nov 2, 2000	1.94	1.94	1.88	1.94
1797	NASDAQ	CECO	Wed, Nov 1, 2000	1.88	1.94	1.88	1.94
1796	NASDAQ	CECO	Tue, Oct 31, 2000	1.75	1.81	1.75	1.75
1795	NASDAQ	CECO	Mon, Oct 30, 2000	1.88	1.94	1.88	1.94
1794	NASDAQ	CECO	Fri, Oct 27, 2000	1.75	1.75	1.75	1.75
1793	NASDAQ	CECO	Thu, Oct 26, 2000	1.63	1.81	1.63	1.81
1792	NASDAQ	CECO	Mon, Oct 23, 2000	1.63	1.88	1.63	1.81
1791	NASDAQ	CECO	Fri, Oct 20, 2000	1.80	1.81	1.50	1.81
1790	NASDAQ	CECO	Thu, Oct 19, 2000	1.50	1.55	1.50	1.55
1789	NASDAQ	CECO	Wed, Oct 18, 2000	1.50	1.50	1.47	1.50
1788	NASDAQ	CECO	Tue, Oct 17, 2000	1.63	1.69	1.63	1.69
1787	NASDAQ	CECO	Mon, Oct 16, 2000	1.81	1.81	1.69	1.69
1786	NASDAQ	CECO	Fri, Oct 13, 2000	1.69	1.75	1.66	1.69
1785	NASDAQ	CECO	Thu, Oct 12, 2000	2.00	2.06	1.47	1.63
1784	NASDAQ	CECO	Wed, Oct 11, 2000	2.00	2.00	2.00	2.00
1783	NASDAQ	CECO	Tue, Oct 10, 2000	2.00	2.13	2.00	2.03
1782	NASDAQ	CECO	Fri, Oct 6, 2000	2.03	2.13	2.00	2.03
1781	NASDAQ	CECO	Thu, Oct 5, 2000	2.03	2.06	2.03	2.06
1780	NASDAQ	CECO	Wed, Oct 4, 2000	2.05	2.13	2.03	2.13
1779	NASDAQ	CECO	Tue, Oct 3, 2000	2.09	2.13	2.03	2.06
1778	NASDAQ	CECO	Mon, Oct 2, 2000	2.16	2.16	2.03	2.09
1777	NASDAQ	CECO	Fri, Sep 29, 2000	2.13	2.13	2.13	2.13
1776	NASDAQ	CECO	Thu, Sep 28, 2000	2.06	2.13	2.06	2.09
1775	NASDAQ	CECO	Wed, Sep 27, 2000	2.06	2.13	2.02	2.06
1774	NASDAQ	CECO	Mon, Sep 25, 2000	2.00	2.19	2.00	2.19
1773	NASDAQ	CECO	Fri, Sep 22, 2000	2.09	2.13	2.00	2.03
1772	NASDAQ	CECO	Thu, Sep 21, 2000	2.06	2.13	2.03	2.13
1771	NASDAQ	CECO	Wed, Sep 20, 2000	2.13	2.13	2.09	2.13
1770	NASDAQ	CECO	Tue, Sep 19, 2000	2.06	2.25	2.03	2.06
1769	NASDAQ	CECO	Mon, Sep 18, 2000	2.09	2.13	2.03	2.03
1768	NASDAQ	CECO	Fri, Sep 15, 2000	2.13	2.13	2.13	2.13
1767	NASDAQ	CECO	Thu, Sep 14, 2000	2.19	2.25	2.19	2.19
1766	NASDAQ	CECO	Wed, Sep 13, 2000	2.08	2.13	2.08	2.13
1765	NASDAQ	CECO	Tue, Sep 12, 2000	2.03	2.13	2.03	2.06
1764	NASDAQ	CECO	Mon, Sep 11, 2000	2.09	2.09	2.00	2.06
1763	NASDAQ	CECO	Fri, Sep 8, 2000	2.17	2.17	2.16	2.16
1762	NASDAQ	CECO	Thu, Sep 7, 2000	2.09	2.09	2.09	2.09
1761	NASDAQ	CECO	Wed, Sep 6, 2000	2.13	2.16	2.13	2.13
1760	NASDAQ	CECO	Tue, Sep 5, 2000	2.19	2.25	2.13	2.13
1759	NASDAQ	CECO	Fri, Sep 1, 2000	2.25	2.25	2.13	2.13
1758	NASDAQ	CECO	Thu, Aug 31, 2000	2.22	2.25	2.22	2.25
1757	NASDAQ	CECO	Wed, Aug 30, 2000	2.25	2.25	2.13	2.25
1756	NASDAQ	CECO	Tue, Aug 29, 2000	2.25	2.25	2.19	2.25
1755	NASDAQ	CECO	Mon, Aug 28, 2000	2.38	2.50	2.25	2.25
1754	NASDAQ	CECO	Thu, Aug 24, 2000	2.25	2.50	2.25	2.31
1753	NASDAQ	CECO	Wed, Aug 23, 2000	2.09	2.25	2.09	2.25
1752	NASDAQ	CECO	Tue, Aug 22, 2000	2.19	2.19	2.19	2.19
1751	NASDAQ	CECO	Mon, Aug 21, 2000	2.25	2.25	2.25	2.25
1750	NASDAQ	CECO	Fri, Aug 18, 2000	2.25	2.25	2.25	2.25
1749	NASDAQ	CECO	Thu, Aug 17, 2000	2.25	2.31	2.25	2.31
1748	NASDAQ	CECO	Wed, Aug 16, 2000	2.06	2.25	2.06	2.25
1747	NASDAQ	CECO	Tue, Aug 15, 2000	2.19	2.19	2.19	2.19
1746	NASDAQ	CECO	Mon, Aug 14, 2000	2.19	2.19	2.06	2.06
1745	NASDAQ	CECO	Fri, Aug 11, 2000	2.06	2.19	2.06	2.19
1744	NASDAQ	CECO	Thu, Aug 10, 2000	2.41	2.41	2.38	2.38
1743	NASDAQ	CECO	Wed, Aug 9, 2000	2.38	2.38	2.00	2.06
1742	NASDAQ	CECO	Tue, Aug 8, 2000	2.41	2.41	2.34	2.34
1741	NASDAQ	CECO	Mon, Aug 7, 2000	2.44	2.44	2.31	2.31
1740	NASDAQ	CECO	Fri, Aug 4, 2000	2.44	2.44	2.44	2.44
1739	NASDAQ	CECO	Thu, Aug 3, 2000	2.45	2.45	2.44	2.44
1738	NASDAQ	CECO	Wed, Aug 2, 2000	2.19	2.47	2.13	2.44
1737	NASDAQ	CECO	Tue, Aug 1, 2000	2.13	2.13	2.13	2.13
1736	NASDAQ	CECO	Mon, Jul 31, 2000	2.13	2.19	2.00	2.19
1735	NASDAQ	CECO	Fri, Jul 28, 2000	2.16	2.16	2.16	2.16
1734	NASDAQ	CECO	Thu, Jul 27, 2000	2.16	2.16	2.16	2.16
1733	NASDAQ	CECO	Wed, Jul 26, 2000	2.25	2.31	2.22	2.31
1732	NASDAQ	CECO	Tue, Jul 25, 2000	2.25	2.25	2.22	2.25
1731	NASDAQ	CECO	Mon, Jul 24, 2000	2.22	2.25	2.22	2.25
1730	NASDAQ	CECO	Fri, Jul 21, 2000	2.31	2.31	2.19	2.31
1729	NASDAQ	CECO	Thu, Jul 20, 2000	2.38	2.38	2.31	2.38
1728	NASDAQ	CECO	Wed, Jul 19, 2000	2.44	2.44	2.44	2.44
1727	NASDAQ	CECO	Tue, Jul 18, 2000	2.38	2.38	2.28	2.28
1726	NASDAQ	CECO	Mon, Jul 17, 2000	2.38	2.38	2.38	2.38
1725	NASDAQ	CECO	Fri, Jul 14, 2000	2.38	2.44	2.38	2.44
1724	NASDAQ	CECO	Thu, Jul 13, 2000	2.28	2.44	2.25	2.38
1723	NASDAQ	CECO	Wed, Jul 12, 2000	2.22	2.22	2.22	2.22
1722	NASDAQ	CECO	Tue, Jul 11, 2000	2.22	2.25	2.22	2.25
1721	NASDAQ	CECO	Mon, Jul 10, 2000	2.22	2.22	2.16	2.16
1720	NASDAQ	CECO	Fri, Jul 7, 2000	2.16	2.16	2.16	2.16
1719	NASDAQ	CECO	Thu, Jul 6, 2000	2.16	2.16	2.16	2.16
1718	NASDAQ	CECO	Wed, Jul 5, 2000	2.22	2.22	2.16	2.16
1717	NASDAQ	CECO	Mon, Jul 3, 2000	2.16	2.16	2.16	2.16
1716	NASDAQ	CECO	Fri, Jun 30, 2000	2.19	2.31	2.19	2.22
1715	NASDAQ	CECO	Thu, Jun 29, 2000	2.16	2.16	2.16	2.16
1714	NASDAQ	CECO	Wed, Jun 28, 2000	2.16	2.16	2.16	2.16
1713	NASDAQ	CECO	Tue, Jun 27, 2000	2.19	2.19	2.19	2.19
1712	NASDAQ	CECO	Mon, Jun 26, 2000	2.16	2.19	2.16	2.16
1711	NASDAQ	CECO	Fri, Jun 23, 2000	2.16	2.16	2.16	2.16
1710	NASDAQ	CECO	Thu, Jun 22, 2000	2.16	2.16	2.16	2.16
1709	NASDAQ	CECO	Wed, Jun 21, 2000	2.16	2.16	2.16	2.16
1708	NASDAQ	CECO	Tue, Jun 20, 2000	2.13	2.25	2.13	2.16
1707	NASDAQ	CECO	Mon, Jun 19, 2000	2.16	2.25	2.16	2.19
1706	NASDAQ	CECO	Fri, Jun 16, 2000	2.16	2.16	2.16	2.16
1705	NASDAQ	CECO	Thu, Jun 15, 2000	2.16	2.16	2.16	2.16
1704	NASDAQ	CECO	Wed, Jun 14, 2000	2.13	2.16	2.00	2.16
1703	NASDAQ	CECO	Tue, Jun 13, 2000	2.13	2.13	2.13	2.13
1702	NASDAQ	CECO	Mon, Jun 12, 2000	2.19	2.25	2.13	2.13
1701	NASDAQ	CECO	Fri, Jun 9, 2000	2.22	2.22	2.22	2.22
1700	NASDAQ	CECO	Thu, Jun 8, 2000	2.13	2.25	2.13	2.25
1699	NASDAQ	CECO	Wed, Jun 7, 2000	2.13	2.13	2.13	2.13
1698	NASDAQ	CECO	Tue, Jun 6, 2000	2.13	2.19	2.06	2.13
1697	NASDAQ	CECO	Mon, Jun 5, 2000	2.25	2.25	2.00	2.16
1696	NASDAQ	CECO	Fri, Jun 2, 2000	2.13	2.38	2.13	2.38
1695	NASDAQ	CECO	Thu, Jun 1, 2000	2.13	2.13	2.13	2.13
1694	NASDAQ	CECO	Wed, May 31, 2000	2.13	2.25	2.13	2.19
1693	NASDAQ	CECO	Tue, May 30, 2000	2.34	2.34	2.13	2.22
1692	NASDAQ	CECO	Fri, May 26, 2000	2.41	2.41	2.34	2.34
1691	NASDAQ	CECO	Thu, May 25, 2000	2.19	2.25	2.06	2.25
1690	NASDAQ	CECO	Tue, May 23, 2000	2.47	2.50	2.31	2.31
1689	NASDAQ	CECO	Mon, May 22, 2000	2.25	2.38	2.25	2.31
1688	NASDAQ	CECO	Fri, May 19, 2000	2.38	2.38	2.25	2.25
1687	NASDAQ	CECO	Thu, May 18, 2000	2.31	2.31	2.31	2.31
1686	NASDAQ	CECO	Wed, May 17, 2000	2.39	2.50	2.25	2.50
1685	NASDAQ	CECO	Tue, May 16, 2000	2.44	2.50	2.25	2.50
1684	NASDAQ	CECO	Mon, May 15, 2000	2.25	2.31	2.19	2.19
1683	NASDAQ	CECO	Fri, May 12, 2000	2.28	2.31	2.06	2.25
1682	NASDAQ	CECO	Thu, May 11, 2000	2.11	2.13	2.09	2.09
1681	NASDAQ	CECO	Wed, May 10, 2000	2.31	2.31	2.19	2.19
1680	NASDAQ	CECO	Tue, May 9, 2000	2.50	2.56	2.28	2.28
1679	NASDAQ	CECO	Mon, May 8, 2000	2.63	2.63	2.44	2.44
1678	NASDAQ	CECO	Fri, May 5, 2000	2.50	2.94	2.44	2.63
1677	NASDAQ	CECO	Thu, May 4, 2000	2.44	2.63	2.44	2.50
1676	NASDAQ	CECO	Wed, May 3, 2000	2.50	2.59	2.47	2.47
1675	NASDAQ	CECO	Tue, May 2, 2000	2.75	2.75	2.50	2.56
1674	NASDAQ	CECO	Mon, May 1, 2000	2.50	2.63	2.44	2.63
1673	NASDAQ	CECO	Fri, Apr 28, 2000	2.31	2.63	2.25	2.63
1672	NASDAQ	CECO	Thu, Apr 27, 2000	2.25	2.44	2.25	2.28
1671	NASDAQ	CECO	Wed, Apr 26, 2000	2.25	2.44	2.25	2.44
1670	NASDAQ	CECO	Tue, Apr 25, 2000	2.25	2.44	2.13	2.44
1669	NASDAQ	CECO	Mon, Apr 24, 2000	2.25	2.34	2.25	2.25
1668	NASDAQ	CECO	Thu, Apr 20, 2000	2.44	2.44	2.13	2.13
1667	NASDAQ	CECO	Wed, Apr 19, 2000	2.25	2.34	2.06	2.34
1666	NASDAQ	CECO	Tue, Apr 18, 2000	2.19	2.25	2.19	2.25
1665	NASDAQ	CECO	Mon, Apr 17, 2000	2.39	2.53	2.19	2.19
1664	NASDAQ	CECO	Fri, Apr 14, 2000	2.50	2.50	2.50	2.50
1663	NASDAQ	CECO	Thu, Apr 13, 2000	2.50	2.56	2.50	2.50
1662	NASDAQ	CECO	Wed, Apr 12, 2000	2.53	2.63	2.50	2.50
1661	NASDAQ	CECO	Tue, Apr 11, 2000	2.59	2.63	2.50	2.56
1660	NASDAQ	CECO	Mon, Apr 10, 2000	2.56	2.75	2.56	2.69
1659	NASDAQ	CECO	Fri, Apr 7, 2000	2.56	2.88	2.50	2.88
1658	NASDAQ	CECO	Thu, Apr 6, 2000	2.56	2.63	2.56	2.56
1657	NASDAQ	CECO	Wed, Apr 5, 2000	2.50	2.63	2.38	2.63
1656	NASDAQ	CECO	Tue, Apr 4, 2000	2.53	2.63	2.28	2.28
1655	NASDAQ	CECO	Mon, Apr 3, 2000	2.50	2.50	2.50	2.50
1654	NASDAQ	CECO	Fri, Mar 31, 2000	2.50	2.50	2.50	2.50
1653	NASDAQ	CECO	Thu, Mar 30, 2000	2.75	2.75	2.50	2.75
1652	NASDAQ	CECO	Wed, Mar 29, 2000	2.86	2.86	2.75	2.81
1651	NASDAQ	CECO	Tue, Mar 28, 2000	2.88	2.97	2.75	2.75
1650	NASDAQ	CECO	Mon, Mar 27, 2000	2.94	2.97	2.88	2.88
1649	NASDAQ	CECO	Fri, Mar 24, 2000	2.66	2.75	2.44	2.44
1648	NASDAQ	CECO	Thu, Mar 23, 2000	2.66	2.72	2.63	2.72
1647	NASDAQ	CECO	Wed, Mar 22, 2000	2.69	2.75	2.66	2.66
1646	NASDAQ	CECO	Tue, Mar 21, 2000	2.75	2.75	2.56	2.56
1645	NASDAQ	CECO	Mon, Mar 20, 2000	2.75	2.75	2.75	2.75
1644	NASDAQ	CECO	Fri, Mar 17, 2000	2.88	2.88	2.88	2.88
1643	NASDAQ	CECO	Thu, Mar 16, 2000	2.81	3.00	2.75	3.00
1642	NASDAQ	CECO	Wed, Mar 15, 2000	2.81	2.94	2.75	2.81
1641	NASDAQ	CECO	Tue, Mar 14, 2000	2.88	2.88	2.88	2.88
1640	NASDAQ	CECO	Mon, Mar 13, 2000	2.88	3.00	2.88	2.88
1639	NASDAQ	CECO	Fri, Mar 10, 2000	3.06	3.06	2.69	2.88
1638	NASDAQ	CECO	Thu, Mar 9, 2000	2.88	3.00	2.88	3.00
1637	NASDAQ	CECO	Wed, Mar 8, 2000	2.97	3.00	2.97	2.97
1636	NASDAQ	CECO	Tue, Mar 7, 2000	3.00	3.19	2.94	2.97
1635	NASDAQ	CECO	Mon, Mar 6, 2000	3.03	3.03	2.88	2.97
1634	NASDAQ	CECO	Fri, Mar 3, 2000	3.00	3.19	2.44	3.00
1633	NASDAQ	CECO	Thu, Mar 2, 2000	2.94	3.38	2.81	3.06
1632	NASDAQ	CECO	Wed, Mar 1, 2000	3.13	3.13	2.94	3.00
1631	NASDAQ	CECO	Tue, Feb 29, 2000	3.00	3.22	2.88	3.13
1630	NASDAQ	CECO	Mon, Feb 28, 2000	3.00	3.19	3.00	3.13
1629	NASDAQ	CECO	Fri, Feb 25, 2000	2.69	3.00	2.56	2.88
1628	NASDAQ	CECO	Thu, Feb 24, 2000	2.75	2.75	2.56	2.56
1627	NASDAQ	CECO	Wed, Feb 23, 2000	2.66	2.75	2.56	2.56
1626	NASDAQ	CECO	Tue, Feb 22, 2000	2.75	2.75	2.63	2.75
1625	NASDAQ	CECO	Fri, Feb 18, 2000	2.69	2.84	2.63	2.63
1624	NASDAQ	CECO	Thu, Feb 17, 2000	2.78	2.88	2.69	2.75
1623	NASDAQ	CECO	Wed, Feb 16, 2000	2.63	2.94	2.63	2.69
1622	NASDAQ	CECO	Tue, Feb 15, 2000	2.66	2.81	2.63	2.63
1621	NASDAQ	CECO	Mon, Feb 14, 2000	2.75	2.75	2.38	2.63
1620	NASDAQ	CECO	Fri, Feb 11, 2000	2.88	2.88	2.63	2.75
1619	NASDAQ	CECO	Thu, Feb 10, 2000	2.97	3.00	2.63	2.63
1618	NASDAQ	CECO	Wed, Feb 9, 2000	2.44	3.25	2.31	3.00
1617	NASDAQ	CECO	Tue, Feb 8, 2000	2.31	2.38	2.19	2.31
1616	NASDAQ	CECO	Mon, Feb 7, 2000	2.38	2.38	2.19	2.31
1615	NASDAQ	CECO	Fri, Feb 4, 2000	2.50	2.50	2.16	2.16
1614	NASDAQ	CECO	Thu, Feb 3, 2000	2.19	2.50	2.19	2.50
1613	NASDAQ	CECO	Wed, Feb 2, 2000	2.38	2.38	2.13	2.38
1612	NASDAQ	CECO	Tue, Feb 1, 2000	2.38	2.38	2.13	2.31
1611	NASDAQ	CECO	Mon, Jan 31, 2000	2.16	2.25	2.13	2.25
1610	NASDAQ	CECO	Fri, Jan 28, 2000	2.25	2.31	2.19	2.19
1609	NASDAQ	CECO	Thu, Jan 27, 2000	2.31	2.31	2.31	2.31
1608	NASDAQ	CECO	Wed, Jan 26, 2000	2.25	2.25	2.25	2.25
1607	NASDAQ	CECO	Tue, Jan 25, 2000	2.25	2.50	2.25	2.50
1606	NASDAQ	CECO	Mon, Jan 24, 2000	2.41	2.53	2.25	2.34
1605	NASDAQ	CECO	Fri, Jan 21, 2000	2.44	2.50	2.31	2.50
1604	NASDAQ	CECO	Thu, Jan 20, 2000	2.13	2.38	2.13	2.28
1603	NASDAQ	CECO	Wed, Jan 19, 2000	2.19	2.19	2.13	2.13
1602	NASDAQ	CECO	Tue, Jan 18, 2000	2.19	2.19	2.13	2.13
1601	NASDAQ	CECO	Fri, Jan 14, 2000	2.31	2.38	2.19	2.22
1600	NASDAQ	CECO	Thu, Jan 13, 2000	2.38	2.38	2.31	2.31
1599	NASDAQ	CECO	Wed, Jan 12, 2000	2.38	2.50	2.38	2.38
1598	NASDAQ	CECO	Tue, Jan 11, 2000	2.31	2.38	2.25	2.38
1597	NASDAQ	CECO	Mon, Jan 10, 2000	2.25	2.50	2.25	2.38
1596	NASDAQ	CECO	Fri, Jan 7, 2000	2.50	2.50	2.25	2.38
1595	NASDAQ	CECO	Thu, Jan 6, 2000	2.50	2.50	2.50	2.50
1594	NASDAQ	CECO	Wed, Jan 5, 2000	2.25	2.50	2.13	2.50
1593	NASDAQ	CECO	Tue, Jan 4, 2000	2.38	2.38	2.06	2.13
1592	NASDAQ	CECO	Mon, Jan 3, 2000	2.50	2.50	2.25	2.38
1591	NASDAQ	CECO	Fri, Dec 31, 1999	2.25	2.63	2.25	2.50
1590	NASDAQ	CECO	Thu, Dec 30, 1999	2.50	2.50	2.00	2.38
1589	NASDAQ	CECO	Wed, Dec 29, 1999	2.50	2.63	2.25	2.50
1588	NASDAQ	CECO	Tue, Dec 28, 1999	2.50	2.88	2.50	2.50
1587	NASDAQ	CECO	Mon, Dec 27, 1999	2.50	2.88	2.50	2.63
1586	NASDAQ	CECO	Thu, Dec 23, 1999	2.13	2.56	2.13	2.56
1585	NASDAQ	CECO	Wed, Dec 22, 1999	2.06	2.13	2.06	2.13
1584	NASDAQ	CECO	Tue, Dec 21, 1999	2.28	2.31	2.09	2.09
1583	NASDAQ	CECO	Mon, Dec 20, 1999	2.25	2.38	2.13	2.28
1582	NASDAQ	CECO	Fri, Dec 17, 1999	2.25	2.31	2.06	2.06
1581	NASDAQ	CECO	Thu, Dec 16, 1999	2.06	2.13	2.06	2.13
1580	NASDAQ	CECO	Wed, Dec 15, 1999	2.19	2.25	2.06	2.06
1579	NASDAQ	CECO	Tue, Dec 14, 1999	2.50	2.50	2.13	2.25
1578	NASDAQ	CECO	Mon, Dec 13, 1999	2.94	2.94	2.38	2.50
1577	NASDAQ	CECO	Fri, Dec 10, 1999	3.25	3.25	2.69	2.69
1576	NASDAQ	CECO	Thu, Dec 9, 1999	3.19	3.38	3.16	3.25
1575	NASDAQ	CECO	Wed, Dec 8, 1999	2.94	4.00	2.94	3.25
1574	NASDAQ	CECO	Tue, Dec 7, 1999	2.91	2.94	2.63	2.94
1573	NASDAQ	CECO	Mon, Dec 6, 1999	2.81	3.00	2.75	2.94
1572	NASDAQ	CECO	Fri, Dec 3, 1999	2.39	3.00	2.38	2.88
1571	NASDAQ	CECO	Thu, Dec 2, 1999	2.25	2.47	2.13	2.44
1570	NASDAQ	CECO	Wed, Dec 1, 1999	2.13	2.25	2.06	2.25
1569	NASDAQ	CECO	Tue, Nov 30, 1999	2.25	2.25	2.03	2.03
1568	NASDAQ	CECO	Mon, Nov 29, 1999	2.25	2.28	2.16	2.28
1567	NASDAQ	CECO	Fri, Nov 26, 1999	2.03	2.25	2.03	2.25
1566	NASDAQ	CECO	Wed, Nov 24, 1999	2.03	2.09	2.03	2.09
1565	NASDAQ	CECO	Tue, Nov 23, 1999	2.03	2.06	2.00	2.03
1564	NASDAQ	CECO	Mon, Nov 22, 1999	2.06	2.06	2.00	2.06
1563	NASDAQ	CECO	Fri, Nov 19, 1999	2.25	2.25	2.06	2.06
1562	NASDAQ	CECO	Thu, Nov 18, 1999	2.23	2.34	2.19	2.25
1561	NASDAQ	CECO	Wed, Nov 17, 1999	2.22	2.47	2.22	2.25
1560	NASDAQ	CECO	Tue, Nov 16, 1999	2.22	2.47	2.19	2.25
1559	NASDAQ	CECO	Mon, Nov 15, 1999	2.25	2.31	2.22	2.25
1558	NASDAQ	CECO	Fri, Nov 12, 1999	2.31	2.31	2.25	2.25
1557	NASDAQ	CECO	Thu, Nov 11, 1999	2.31	2.38	2.19	2.25
1556	NASDAQ	CECO	Wed, Nov 10, 1999	2.13	2.38	2.13	2.25
1555	NASDAQ	CECO	Tue, Nov 9, 1999	2.25	2.25	2.06	2.25
1554	NASDAQ	CECO	Mon, Nov 8, 1999	2.19	2.25	2.13	2.19
1553	NASDAQ	CECO	Fri, Nov 5, 1999	2.13	2.25	2.13	2.19
1552	NASDAQ	CECO	Thu, Nov 4, 1999	2.13	2.19	2.13	2.13
1551	NASDAQ	CECO	Wed, Nov 3, 1999	2.13	2.31	2.13	2.31
1550	NASDAQ	CECO	Tue, Nov 2, 1999	2.13	2.19	2.13	2.19
1549	NASDAQ	CECO	Mon, Nov 1, 1999	2.13	2.13	2.13	2.13
1548	NASDAQ	CECO	Fri, Oct 29, 1999	2.19	2.19	2.00	2.06
1547	NASDAQ	CECO	Thu, Oct 28, 1999	2.03	2.25	2.00	2.13
1546	NASDAQ	CECO	Wed, Oct 27, 1999	2.25	2.25	1.94	2.00
1545	NASDAQ	CECO	Tue, Oct 26, 1999	1.88	2.13	1.88	2.03
1544	NASDAQ	CECO	Mon, Oct 25, 1999	2.00	2.00	1.88	1.97
1543	NASDAQ	CECO	Fri, Oct 22, 1999	1.97	2.13	1.72	2.13
1542	NASDAQ	CECO	Thu, Oct 21, 1999	2.25	2.25	1.75	2.13
1541	NASDAQ	CECO	Wed, Oct 20, 1999	2.31	2.38	2.25	2.38
1540	NASDAQ	CECO	Tue, Oct 19, 1999	2.25	2.38	2.25	2.38
1539	NASDAQ	CECO	Mon, Oct 18, 1999	2.38	2.38	2.31	2.31
1538	NASDAQ	CECO	Fri, Oct 15, 1999	2.44	2.44	2.44	2.44
1537	NASDAQ	CECO	Thu, Oct 14, 1999	2.44	2.44	2.38	2.41
1536	NASDAQ	CECO	Wed, Oct 13, 1999	2.38	2.47	2.38	2.47
1535	NASDAQ	CECO	Tue, Oct 12, 1999	2.44	2.69	2.38	2.50
1534	NASDAQ	CECO	Mon, Oct 11, 1999	2.66	2.69	2.50	2.50
1533	NASDAQ	CECO	Fri, Oct 8, 1999	2.44	2.63	2.38	2.44
1532	NASDAQ	CECO	Thu, Oct 7, 1999	2.50	2.63	2.44	2.50
1531	NASDAQ	CECO	Wed, Oct 6, 1999	2.56	2.56	2.44	2.56
1530	NASDAQ	CECO	Tue, Oct 5, 1999	2.63	2.66	2.56	2.56
1529	NASDAQ	CECO	Mon, Oct 4, 1999	2.72	2.72	2.50	2.50
1528	NASDAQ	CECO	Fri, Oct 1, 1999	2.75	2.75	2.75	2.75
1527	NASDAQ	CECO	Thu, Sep 30, 1999	2.66	2.75	2.56	2.69
1526	NASDAQ	CECO	Wed, Sep 29, 1999	2.50	2.69	2.44	2.69
1525	NASDAQ	CECO	Tue, Sep 28, 1999	2.25	2.50	2.19	2.50
1524	NASDAQ	CECO	Mon, Sep 27, 1999	2.50	2.50	2.16	2.25
1523	NASDAQ	CECO	Fri, Sep 24, 1999	2.59	2.59	2.38	2.44
1522	NASDAQ	CECO	Thu, Sep 23, 1999	2.53	2.63	2.50	2.50
1521	NASDAQ	CECO	Wed, Sep 22, 1999	2.75	2.75	2.50	2.50
1520	NASDAQ	CECO	Tue, Sep 21, 1999	2.94	2.94	2.63	2.75
1519	NASDAQ	CECO	Mon, Sep 20, 1999	2.94	2.94	2.94	2.94
1518	NASDAQ	CECO	Fri, Sep 17, 1999	3.00	3.00	2.94	2.94
1517	NASDAQ	CECO	Thu, Sep 16, 1999	3.22	3.22	3.00	3.00
1516	NASDAQ	CECO	Wed, Sep 15, 1999	3.13	3.19	3.13	3.19
1515	NASDAQ	CECO	Tue, Sep 14, 1999	3.31	3.44	3.13	3.13
1514	NASDAQ	CECO	Mon, Sep 13, 1999	3.38	3.44	3.13	3.31
1513	NASDAQ	CECO	Fri, Sep 10, 1999	3.44	3.44	3.22	3.38
1512	NASDAQ	CECO	Thu, Sep 9, 1999	3.38	3.50	3.13	3.41
1511	NASDAQ	CECO	Wed, Sep 8, 1999	3.50	3.59	3.34	3.50
1510	NASDAQ	CECO	Tue, Sep 7, 1999	3.31	3.63	3.19	3.50
1509	NASDAQ	CECO	Fri, Sep 3, 1999	2.97	3.25	2.97	3.25
1508	NASDAQ	CECO	Thu, Sep 2, 1999	2.75	2.97	2.75	2.88
1507	NASDAQ	CECO	Wed, Sep 1, 1999	2.50	2.88	2.50	2.69
1506	NASDAQ	CECO	Tue, Aug 31, 1999	2.63	2.63	2.56	2.56
1505	NASDAQ	CECO	Mon, Aug 30, 1999	2.94	2.94	2.75	2.75
1504	NASDAQ	CECO	Fri, Aug 27, 1999	2.75	2.88	2.63	2.88
1503	NASDAQ	CECO	Thu, Aug 26, 1999	2.56	2.75	2.56	2.75
1502	NASDAQ	CECO	Wed, Aug 25, 1999	2.63	2.63	2.50	2.50
1501	NASDAQ	CECO	Tue, Aug 24, 1999	2.63	2.88	2.63	2.63
1500	NASDAQ	CECO	Mon, Aug 23, 1999	2.69	2.81	2.69	2.69
1499	NASDAQ	CECO	Fri, Aug 20, 1999	2.75	2.81	2.75	2.81
1498	NASDAQ	CECO	Thu, Aug 19, 1999	2.88	2.88	2.69	2.75
1497	NASDAQ	CECO	Wed, Aug 18, 1999	2.84	2.94	2.63	2.88
1496	NASDAQ	CECO	Tue, Aug 17, 1999	2.63	2.94	2.50	2.94
1495	NASDAQ	CECO	Mon, Aug 16, 1999	2.56	2.63	2.45	2.63
1494	NASDAQ	CECO	Fri, Aug 13, 1999	2.27	2.56	2.27	2.56
1493	NASDAQ	CECO	Thu, Aug 12, 1999	2.53	2.53	2.13	2.13
1492	NASDAQ	CECO	Wed, Aug 11, 1999	2.19	2.53	2.06	2.50
1491	NASDAQ	CECO	Tue, Aug 10, 1999	2.53	2.53	2.06	2.44
1490	NASDAQ	CECO	Mon, Aug 9, 1999	2.64	2.81	2.44	2.56
1489	NASDAQ	CECO	Fri, Aug 6, 1999	2.59	2.88	2.53	2.81
1488	NASDAQ	CECO	Thu, Aug 5, 1999	2.75	2.88	2.50	2.56
1487	NASDAQ	CECO	Wed, Aug 4, 1999	2.75	3.06	2.75	2.75
1486	NASDAQ	CECO	Tue, Aug 3, 1999	2.75	2.81	2.50	2.75
1485	NASDAQ	CECO	Mon, Aug 2, 1999	2.75	2.75	2.50	2.75
1484	NASDAQ	CECO	Fri, Jul 30, 1999	2.75	2.81	2.75	2.75
1483	NASDAQ	CECO	Thu, Jul 29, 1999	3.13	3.13	2.75	2.88
1482	NASDAQ	CECO	Wed, Jul 28, 1999	2.56	3.06	2.56	2.94
1481	NASDAQ	CECO	Tue, Jul 27, 1999	2.75	2.75	2.50	2.56
1480	NASDAQ	CECO	Mon, Jul 26, 1999	2.64	2.88	2.63	2.75
1479	NASDAQ	CECO	Fri, Jul 23, 1999	2.63	2.69	2.50	2.63
1478	NASDAQ	CECO	Thu, Jul 22, 1999	2.75	2.88	2.50	2.50
1477	NASDAQ	CECO	Wed, Jul 21, 1999	2.81	2.94	2.69	2.75
1476	NASDAQ	CECO	Tue, Jul 20, 1999	2.63	2.75	2.59	2.75
1475	NASDAQ	CECO	Mon, Jul 19, 1999	3.06	3.19	2.50	2.50
1474	NASDAQ	CECO	Fri, Jul 16, 1999	3.13	3.25	2.84	3.00
1473	NASDAQ	CECO	Thu, Jul 15, 1999	3.31	3.31	3.00	3.06
1472	NASDAQ	CECO	Wed, Jul 14, 1999	3.50	3.50	3.19	3.19
1471	NASDAQ	CECO	Tue, Jul 13, 1999	3.48	3.50	3.47	3.47
1470	NASDAQ	CECO	Mon, Jul 12, 1999	3.52	3.56	3.47	3.50
1469	NASDAQ	CECO	Fri, Jul 9, 1999	3.56	3.56	3.50	3.50
1468	NASDAQ	CECO	Thu, Jul 8, 1999	3.59	3.63	3.50	3.50
1467	NASDAQ	CECO	Wed, Jul 7, 1999	3.75	3.75	3.50	3.56
1466	NASDAQ	CECO	Tue, Jul 6, 1999	3.38	3.63	3.38	3.50
1465	NASDAQ	CECO	Fri, Jul 2, 1999	3.69	3.69	3.38	3.38
1464	NASDAQ	CECO	Thu, Jul 1, 1999	3.50	3.69	3.50	3.50
1463	NASDAQ	CECO	Wed, Jun 30, 1999	3.66	3.66	3.38	3.50
1462	NASDAQ	CECO	Tue, Jun 29, 1999	3.50	3.56	3.50	3.53
1461	NASDAQ	CECO	Mon, Jun 28, 1999	3.69	3.69	3.50	3.50
1460	NASDAQ	CECO	Fri, Jun 25, 1999	3.69	3.69	3.56	3.56
1459	NASDAQ	CECO	Thu, Jun 24, 1999	3.69	3.75	3.63	3.75
1458	NASDAQ	CECO	Wed, Jun 23, 1999	3.75	3.75	3.63	3.63
1457	NASDAQ	CECO	Tue, Jun 22, 1999	3.88	3.88	3.50	3.75
1456	NASDAQ	CECO	Mon, Jun 21, 1999	3.88	3.88	3.75	3.75
1455	NASDAQ	CECO	Fri, Jun 18, 1999	3.63	3.88	3.63	3.81
1454	NASDAQ	CECO	Thu, Jun 17, 1999	3.75	3.75	3.56	3.69
1453	NASDAQ	CECO	Wed, Jun 16, 1999	3.81	3.88	3.56	3.75
1452	NASDAQ	CECO	Tue, Jun 15, 1999	3.94	3.97	3.72	3.72
1451	NASDAQ	CECO	Mon, Jun 14, 1999	3.94	4.00	3.88	3.91
1450	NASDAQ	CECO	Fri, Jun 11, 1999	3.75	4.00	3.69	3.88
1449	NASDAQ	CECO	Thu, Jun 10, 1999	3.56	3.75	3.50	3.75
1448	NASDAQ	CECO	Wed, Jun 9, 1999	3.63	3.88	3.50	3.69
1447	NASDAQ	CECO	Tue, Jun 8, 1999	3.94	3.94	3.63	3.63
1446	NASDAQ	CECO	Mon, Jun 7, 1999	3.69	3.94	3.56	3.69
1445	NASDAQ	CECO	Fri, Jun 4, 1999	3.88	3.94	3.88	3.94
1444	NASDAQ	CECO	Thu, Jun 3, 1999	3.88	3.88	3.69	3.75
1443	NASDAQ	CECO	Wed, Jun 2, 1999	3.63	3.81	3.63	3.81
1442	NASDAQ	CECO	Tue, Jun 1, 1999	3.75	3.81	3.63	3.63
1441	NASDAQ	CECO	Fri, May 28, 1999	3.63	3.81	3.53	3.63
1440	NASDAQ	CECO	Thu, May 27, 1999	3.75	3.75	3.50	3.50
1439	NASDAQ	CECO	Wed, May 26, 1999	3.69	3.81	3.63	3.75
1438	NASDAQ	CECO	Tue, May 25, 1999	3.63	3.81	3.56	3.75
1437	NASDAQ	CECO	Mon, May 24, 1999	3.75	3.88	3.63	3.88
1436	NASDAQ	CECO	Fri, May 21, 1999	3.88	3.94	3.75	3.88
1435	NASDAQ	CECO	Thu, May 20, 1999	3.75	4.00	3.75	3.88
1434	NASDAQ	CECO	Wed, May 19, 1999	3.94	4.06	3.81	3.94
1433	NASDAQ	CECO	Tue, May 18, 1999	3.81	4.00	3.81	4.00
1432	NASDAQ	CECO	Mon, May 17, 1999	3.88	4.13	3.81	3.94
1431	NASDAQ	CECO	Fri, May 14, 1999	4.06	4.06	3.91	4.00
1430	NASDAQ	CECO	Thu, May 13, 1999	4.09	4.25	4.06	4.06
1429	NASDAQ	CECO	Wed, May 12, 1999	4.25	4.25	3.88	4.13
1428	NASDAQ	CECO	Tue, May 11, 1999	3.88	4.13	3.88	4.13
1427	NASDAQ	CECO	Mon, May 10, 1999	4.00	4.06	3.88	4.06
1426	NASDAQ	CECO	Fri, May 7, 1999	3.91	4.13	3.88	4.00
1425	NASDAQ	CECO	Thu, May 6, 1999	4.25	4.25	3.81	3.88
1424	NASDAQ	CECO	Wed, May 5, 1999	4.38	4.63	4.13	4.25
1423	NASDAQ	CECO	Tue, May 4, 1999	4.00	4.63	4.00	4.56
1422	NASDAQ	CECO	Mon, May 3, 1999	4.31	4.31	4.00	4.06
1421	NASDAQ	CECO	Fri, Apr 30, 1999	3.63	4.63	3.63	4.28
1420	NASDAQ	CECO	Thu, Apr 29, 1999	3.31	3.75	3.31	3.63
1419	NASDAQ	CECO	Wed, Apr 28, 1999	3.63	3.63	3.44	3.50
1418	NASDAQ	CECO	Tue, Apr 27, 1999	3.50	3.63	3.44	3.63
1417	NASDAQ	CECO	Mon, Apr 26, 1999	3.56	3.75	3.50	3.63
1416	NASDAQ	CECO	Fri, Apr 23, 1999	3.38	3.69	3.38	3.56
1415	NASDAQ	CECO	Thu, Apr 22, 1999	3.00	3.38	3.00	3.38
1414	NASDAQ	CECO	Wed, Apr 21, 1999	3.25	3.38	3.13	3.13
1413	NASDAQ	CECO	Tue, Apr 20, 1999	3.38	3.50	3.31	3.31
1412	NASDAQ	CECO	Mon, Apr 19, 1999	3.63	3.63	3.38	3.38
1411	NASDAQ	CECO	Fri, Apr 16, 1999	3.56	3.63	3.31	3.50
1410	NASDAQ	CECO	Thu, Apr 15, 1999	3.56	3.56	3.31	3.44
1409	NASDAQ	CECO	Wed, Apr 14, 1999	3.63	3.63	3.38	3.56
1408	NASDAQ	CECO	Tue, Apr 13, 1999	3.56	3.75	3.50	3.50
1407	NASDAQ	CECO	Mon, Apr 12, 1999	3.63	3.88	3.50	3.50
1406	NASDAQ	CECO	Fri, Apr 9, 1999	3.44	3.88	3.25	3.56
1405	NASDAQ	CECO	Thu, Apr 8, 1999	3.38	3.50	3.25	3.28
1404	NASDAQ	CECO	Wed, Apr 7, 1999	3.41	3.41	3.28	3.38
1403	NASDAQ	CECO	Tue, Apr 6, 1999	3.75	3.75	3.38	3.50
1402	NASDAQ	CECO	Mon, Apr 5, 1999	3.88	3.88	3.56	3.66
1401	NASDAQ	CECO	Thu, Apr 1, 1999	3.88	3.88	3.25	3.50
1400	NASDAQ	CECO	Wed, Mar 31, 1999	3.91	4.50	3.50	3.75
1399	NASDAQ	CECO	Tue, Mar 30, 1999	3.94	4.00	3.75	3.78
1398	NASDAQ	CECO	Mon, Mar 29, 1999	3.88	4.00	3.63	3.75
1397	NASDAQ	CECO	Fri, Mar 26, 1999	3.38	3.50	3.16	3.50
1396	NASDAQ	CECO	Thu, Mar 25, 1999	3.19	3.38	3.19	3.25
1395	NASDAQ	CECO	Wed, Mar 24, 1999	2.94	3.19	2.91	3.19
1394	NASDAQ	CECO	Tue, Mar 23, 1999	3.25	3.25	3.00	3.06
1393	NASDAQ	CECO	Mon, Mar 22, 1999	2.88	3.56	2.88	3.25
1392	NASDAQ	CECO	Fri, Mar 19, 1999	2.94	2.94	2.88	2.88
1391	NASDAQ	CECO	Thu, Mar 18, 1999	2.88	3.00	2.88	2.94
1390	NASDAQ	CECO	Wed, Mar 17, 1999	3.00	3.00	2.75	3.00
1389	NASDAQ	CECO	Tue, Mar 16, 1999	3.00	3.00	3.00	3.00
1388	NASDAQ	CECO	Mon, Mar 15, 1999	3.00	3.00	2.88	3.00
1387	NASDAQ	CECO	Fri, Mar 12, 1999	3.00	3.14	3.00	3.13
1386	NASDAQ	CECO	Thu, Mar 11, 1999	3.00	3.13	3.00	3.13
1385	NASDAQ	CECO	Wed, Mar 10, 1999	2.88	3.00	2.88	3.00
1384	NASDAQ	CECO	Mon, Mar 8, 1999	3.13	3.13	2.88	2.91
1383	NASDAQ	CECO	Fri, Mar 5, 1999	2.88	3.00	2.88	3.00
1382	NASDAQ	CECO	Thu, Mar 4, 1999	2.66	3.00	2.66	2.91
1381	NASDAQ	CECO	Wed, Mar 3, 1999	2.81	2.88	2.63	2.88
1380	NASDAQ	CECO	Tue, Mar 2, 1999	3.06	3.06	2.88	2.88
1379	NASDAQ	CECO	Mon, Mar 1, 1999	3.00	3.06	2.75	3.00
1378	NASDAQ	CECO	Fri, Feb 26, 1999	2.66	2.88	2.66	2.88
1377	NASDAQ	CECO	Thu, Feb 25, 1999	3.06	3.06	2.25	2.66
1376	NASDAQ	CECO	Wed, Feb 24, 1999	2.88	3.13	2.88	3.13
1375	NASDAQ	CECO	Mon, Feb 22, 1999	3.13	3.25	3.00	3.00
1374	NASDAQ	CECO	Fri, Feb 19, 1999	3.13	3.13	3.13	3.13
1373	NASDAQ	CECO	Thu, Feb 18, 1999	3.09	3.25	3.09	3.13
1372	NASDAQ	CECO	Wed, Feb 17, 1999	2.88	3.13	2.81	3.09
1371	NASDAQ	CECO	Tue, Feb 16, 1999	2.88	3.06	2.75	3.06
1370	NASDAQ	CECO	Fri, Feb 12, 1999	2.88	3.00	2.88	3.00
1369	NASDAQ	CECO	Thu, Feb 11, 1999	2.88	2.88	2.69	2.88
1368	NASDAQ	CECO	Wed, Feb 10, 1999	3.06	3.06	2.81	2.88
1367	NASDAQ	CECO	Tue, Feb 9, 1999	3.06	3.06	3.06	3.06
1366	NASDAQ	CECO	Mon, Feb 8, 1999	2.94	3.06	2.94	3.06
1365	NASDAQ	CECO	Fri, Feb 5, 1999	3.13	3.13	3.00	3.00
1364	NASDAQ	CECO	Thu, Feb 4, 1999	3.13	3.13	2.81	2.81
1363	NASDAQ	CECO	Tue, Feb 2, 1999	3.13	3.48	3.00	3.19
1362	NASDAQ	CECO	Mon, Feb 1, 1999	3.50	3.50	3.19	3.25
1361	NASDAQ	CECO	Fri, Jan 29, 1999	3.19	3.69	3.19	3.69
1360	NASDAQ	CECO	Thu, Jan 28, 1999	3.63	3.69	3.19	3.19
1359	NASDAQ	CECO	Wed, Jan 27, 1999	3.81	3.81	3.38	3.63
1358	NASDAQ	CECO	Tue, Jan 26, 1999	3.25	3.81	3.19	3.78
1357	NASDAQ	CECO	Mon, Jan 25, 1999	3.13	3.25	3.13	3.19
1356	NASDAQ	CECO	Fri, Jan 22, 1999	3.13	3.13	3.13	3.13
1355	NASDAQ	CECO	Thu, Jan 21, 1999	3.25	3.25	3.00	3.13
1354	NASDAQ	CECO	Wed, Jan 20, 1999	3.00	3.13	3.00	3.13
1353	NASDAQ	CECO	Tue, Jan 19, 1999	2.63	2.75	2.63	2.75
1352	NASDAQ	CECO	Fri, Jan 15, 1999	2.75	3.00	2.63	2.88
1351	NASDAQ	CECO	Thu, Jan 14, 1999	2.75	2.75	2.75	2.75
1350	NASDAQ	CECO	Wed, Jan 13, 1999	2.75	2.88	2.75	2.88
1349	NASDAQ	CECO	Tue, Jan 12, 1999	2.75	2.75	2.75	2.75
1348	NASDAQ	CECO	Mon, Jan 11, 1999	2.75	3.00	2.75	3.00
1347	NASDAQ	CECO	Fri, Jan 8, 1999	2.75	2.78	2.75	2.75
1346	NASDAQ	CECO	Thu, Jan 7, 1999	2.75	2.75	2.75	2.75
1345	NASDAQ	CECO	Wed, Jan 6, 1999	2.75	2.94	2.75	2.94
1344	NASDAQ	CECO	Tue, Jan 5, 1999	2.75	2.88	2.75	2.81
1343	NASDAQ	CECO	Mon, Jan 4, 1999	2.94	2.94	2.72	2.75
1342	NASDAQ	CECO	Thu, Dec 31, 1998	2.75	3.00	2.75	3.00
1341	NASDAQ	CECO	Wed, Dec 30, 1998	2.75	2.88	2.63	2.88
1340	NASDAQ	CECO	Tue, Dec 29, 1998	2.63	2.66	2.50	2.63
1339	NASDAQ	CECO	Mon, Dec 28, 1998	2.75	2.75	2.63	2.63
1338	NASDAQ	CECO	Thu, Dec 24, 1998	2.75	2.88	2.75	2.78
1337	NASDAQ	CECO	Wed, Dec 23, 1998	2.75	2.75	2.75	2.75
1336	NASDAQ	CECO	Tue, Dec 22, 1998	2.75	2.75	2.75	2.75
1335	NASDAQ	CECO	Mon, Dec 21, 1998	2.75	2.88	2.75	2.88
1334	NASDAQ	CECO	Fri, Dec 18, 1998	2.50	2.88	2.38	2.88
1333	NASDAQ	CECO	Thu, Dec 17, 1998	2.50	2.75	2.50	2.75
1332	NASDAQ	CECO	Wed, Dec 16, 1998	2.88	2.88	2.50	2.88
1331	NASDAQ	CECO	Tue, Dec 15, 1998	2.88	2.88	2.88	2.88
1330	NASDAQ	CECO	Mon, Dec 14, 1998	2.75	2.75	2.75	2.75
1329	NASDAQ	CECO	Fri, Dec 11, 1998	2.63	2.63	2.38	2.63
1328	NASDAQ	CECO	Thu, Dec 10, 1998	2.50	2.50	2.50	2.50
1327	NASDAQ	CECO	Wed, Dec 9, 1998	2.81	2.84	2.50	2.50
1326	NASDAQ	CECO	Tue, Dec 8, 1998	3.00	3.00	2.75	2.81
1325	NASDAQ	CECO	Mon, Dec 7, 1998	2.94	2.94	2.88	2.88
1324	NASDAQ	CECO	Fri, Dec 4, 1998	2.75	2.88	2.75	2.88
1323	NASDAQ	CECO	Thu, Dec 3, 1998	2.63	2.81	2.63	2.81
1322	NASDAQ	CECO	Wed, Dec 2, 1998	2.69	2.69	2.69	2.69
1321	NASDAQ	CECO	Tue, Dec 1, 1998	2.81	2.81	2.81	2.81
1320	NASDAQ	CECO	Mon, Nov 30, 1998	2.94	2.94	2.88	2.88
1319	NASDAQ	CECO	Wed, Nov 25, 1998	2.88	2.88	2.88	2.88
1318	NASDAQ	CECO	Tue, Nov 24, 1998	3.00	3.25	2.88	3.06
1317	NASDAQ	CECO	Mon, Nov 23, 1998	3.00	3.13	3.00	3.13
1316	NASDAQ	CECO	Fri, Nov 20, 1998	2.75	2.91	2.75	2.88
1315	NASDAQ	CECO	Thu, Nov 19, 1998	2.88	3.00	2.81	2.81
1314	NASDAQ	CECO	Wed, Nov 18, 1998	3.13	3.13	3.13	3.13
1313	NASDAQ	CECO	Tue, Nov 17, 1998	2.75	3.00	2.63	3.00
1312	NASDAQ	CECO	Mon, Nov 16, 1998	2.75	2.75	2.63	2.63
1311	NASDAQ	CECO	Fri, Nov 13, 1998	2.63	3.00	2.63	3.00
1310	NASDAQ	CECO	Thu, Nov 12, 1998	2.94	2.94	2.63	2.63
1309	NASDAQ	CECO	Wed, Nov 11, 1998	2.63	2.75	2.63	2.75
1308	NASDAQ	CECO	Tue, Nov 10, 1998	2.50	2.66	2.50	2.66
1307	NASDAQ	CECO	Mon, Nov 9, 1998	2.72	2.72	2.53	2.53
1306	NASDAQ	CECO	Fri, Nov 6, 1998	2.81	2.94	2.72	2.72
1305	NASDAQ	CECO	Thu, Nov 5, 1998	2.50	2.75	2.38	2.75
1304	NASDAQ	CECO	Wed, Nov 4, 1998	2.19	2.50	2.19	2.38
1303	NASDAQ	CECO	Tue, Nov 3, 1998	2.13	2.13	2.13	2.13
1302	NASDAQ	CECO	Mon, Nov 2, 1998	2.00	2.13	1.81	2.13
1301	NASDAQ	CECO	Fri, Oct 30, 1998	2.00	2.00	2.00	2.00
1300	NASDAQ	CECO	Thu, Oct 29, 1998	2.13	2.13	2.00	2.00
1299	NASDAQ	CECO	Wed, Oct 28, 1998	2.13	2.13	2.13	2.13
1298	NASDAQ	CECO	Tue, Oct 27, 1998	2.13	2.13	1.88	2.00
1297	NASDAQ	CECO	Mon, Oct 26, 1998	2.06	2.06	2.06	2.06
1296	NASDAQ	CECO	Fri, Oct 23, 1998	2.06	2.06	2.00	2.00
1295	NASDAQ	CECO	Thu, Oct 22, 1998	1.75	2.00	1.75	2.00
1294	NASDAQ	CECO	Wed, Oct 21, 1998	1.63	1.88	1.63	1.88
1293	NASDAQ	CECO	Tue, Oct 20, 1998	1.75	1.75	1.75	1.75
1292	NASDAQ	CECO	Mon, Oct 19, 1998	1.50	1.56	1.50	1.56
1291	NASDAQ	CECO	Fri, Oct 16, 1998	1.50	1.53	1.50	1.50
1290	NASDAQ	CECO	Wed, Oct 14, 1998	1.41	1.41	1.41	1.41
1289	NASDAQ	CECO	Tue, Oct 13, 1998	1.41	1.41	1.41	1.41
1288	NASDAQ	CECO	Mon, Oct 12, 1998	1.50	1.53	1.44	1.53
1287	NASDAQ	CECO	Fri, Oct 9, 1998	1.50	1.53	1.50	1.53
1286	NASDAQ	CECO	Thu, Oct 8, 1998	1.53	1.56	1.50	1.50
1285	NASDAQ	CECO	Tue, Oct 6, 1998	1.56	1.56	1.56	1.56
1284	NASDAQ	CECO	Mon, Oct 5, 1998	1.63	1.75	1.53	1.56
1283	NASDAQ	CECO	Fri, Oct 2, 1998	1.56	1.81	1.56	1.81
1282	NASDAQ	CECO	Thu, Oct 1, 1998	1.53	1.56	1.53	1.56
1281	NASDAQ	CECO	Wed, Sep 30, 1998	1.63	1.63	1.56	1.56
1280	NASDAQ	CECO	Tue, Sep 29, 1998	1.75	1.75	1.56	1.56
1279	NASDAQ	CECO	Mon, Sep 28, 1998	1.56	1.56	1.56	1.56
1278	NASDAQ	CECO	Thu, Sep 24, 1998	1.69	1.69	1.56	1.56
1277	NASDAQ	CECO	Wed, Sep 23, 1998	1.69	1.69	1.53	1.53
1276	NASDAQ	CECO	Tue, Sep 22, 1998	1.53	1.53	1.53	1.53
1275	NASDAQ	CECO	Mon, Sep 21, 1998	1.53	1.56	1.53	1.56
1274	NASDAQ	CECO	Fri, Sep 18, 1998	1.63	1.75	1.50	1.66
1273	NASDAQ	CECO	Thu, Sep 17, 1998	1.63	1.75	1.63	1.75
1272	NASDAQ	CECO	Wed, Sep 16, 1998	1.69	1.91	1.69	1.91
1271	NASDAQ	CECO	Tue, Sep 15, 1998	1.75	1.91	1.75	1.75
1270	NASDAQ	CECO	Mon, Sep 14, 1998	1.81	1.81	1.56	1.63
1269	NASDAQ	CECO	Fri, Sep 11, 1998	1.88	1.88	1.75	1.78
1268	NASDAQ	CECO	Thu, Sep 10, 1998	2.00	2.03	1.88	1.88
1267	NASDAQ	CECO	Wed, Sep 9, 1998	2.00	2.03	2.00	2.03
1266	NASDAQ	CECO	Tue, Sep 8, 1998	1.94	2.25	1.94	2.03
1265	NASDAQ	CECO	Fri, Sep 4, 1998	2.25	2.25	1.94	1.97
1264	NASDAQ	CECO	Thu, Sep 3, 1998	1.91	1.91	1.81	1.88
1263	NASDAQ	CECO	Wed, Sep 2, 1998	2.06	2.06	1.75	2.00
1262	NASDAQ	CECO	Tue, Sep 1, 1998	2.50	2.50	2.06	2.06
1261	NASDAQ	CECO	Mon, Aug 31, 1998	2.38	2.50	2.25	2.25
1260	NASDAQ	CECO	Fri, Aug 28, 1998	2.44	2.63	2.44	2.63
1259	NASDAQ	CECO	Thu, Aug 27, 1998	2.38	2.63	2.38	2.53
1258	NASDAQ	CECO	Wed, Aug 26, 1998	2.56	2.56	2.56	2.56
1257	NASDAQ	CECO	Mon, Aug 24, 1998	2.38	2.38	2.38	2.38
1256	NASDAQ	CECO	Thu, Aug 20, 1998	2.75	2.75	2.38	2.56
1255	NASDAQ	CECO	Wed, Aug 19, 1998	2.38	2.38	2.38	2.38
1254	NASDAQ	CECO	Tue, Aug 18, 1998	2.63	2.63	2.63	2.63
1253	NASDAQ	CECO	Mon, Aug 17, 1998	2.56	2.63	2.38	2.50
1252	NASDAQ	CECO	Fri, Aug 14, 1998	2.25	2.25	2.25	2.25
1251	NASDAQ	CECO	Wed, Aug 12, 1998	2.44	2.44	2.25	2.25
1250	NASDAQ	CECO	Tue, Aug 11, 1998	2.44	2.44	2.44	2.44
1249	NASDAQ	CECO	Mon, Aug 10, 1998	2.19	2.25	2.19	2.22
1248	NASDAQ	CECO	Fri, Aug 7, 1998	2.06	2.13	2.06	2.13
1247	NASDAQ	CECO	Thu, Aug 6, 1998	2.13	2.38	1.88	2.25
1246	NASDAQ	CECO	Wed, Aug 5, 1998	2.63	2.81	1.81	2.00
1245	NASDAQ	CECO	Tue, Aug 4, 1998	2.50	2.50	2.50	2.50
1244	NASDAQ	CECO	Fri, Jul 31, 1998	2.88	2.88	2.75	2.75
1243	NASDAQ	CECO	Thu, Jul 30, 1998	2.31	2.88	2.25	2.88
1242	NASDAQ	CECO	Wed, Jul 29, 1998	2.31	2.38	2.31	2.38
1241	NASDAQ	CECO	Tue, Jul 28, 1998	2.56	2.56	2.38	2.38
1240	NASDAQ	CECO	Mon, Jul 27, 1998	2.56	2.56	2.56	2.56
1239	NASDAQ	CECO	Fri, Jul 24, 1998	2.75	2.75	2.63	2.63
1238	NASDAQ	CECO	Thu, Jul 23, 1998	3.00	3.00	2.75	2.75
1237	NASDAQ	CECO	Wed, Jul 22, 1998	2.75	2.75	2.75	2.75
1236	NASDAQ	CECO	Tue, Jul 21, 1998	2.75	2.75	2.75	2.75
1235	NASDAQ	CECO	Mon, Jul 20, 1998	3.00	3.00	2.75	2.75
1234	NASDAQ	CECO	Fri, Jul 17, 1998	2.56	2.88	2.56	2.88
1233	NASDAQ	CECO	Thu, Jul 16, 1998	2.88	2.88	2.75	2.75
1232	NASDAQ	CECO	Wed, Jul 15, 1998	3.00	3.00	3.00	3.00
1231	NASDAQ	CECO	Tue, Jul 14, 1998	2.88	3.00	2.75	3.00
1230	NASDAQ	CECO	Mon, Jul 13, 1998	2.63	2.88	2.63	2.88
1229	NASDAQ	CECO	Fri, Jul 10, 1998	2.63	2.75	2.63	2.75
1228	NASDAQ	CECO	Thu, Jul 9, 1998	2.63	2.75	2.63	2.75
1227	NASDAQ	CECO	Wed, Jul 8, 1998	2.50	2.56	2.50	2.56
1226	NASDAQ	CECO	Tue, Jul 7, 1998	2.38	2.38	2.38	2.38
1225	NASDAQ	CECO	Mon, Jul 6, 1998	2.75	2.75	2.38	2.63
1224	NASDAQ	CECO	Thu, Jul 2, 1998	2.75	2.75	2.50	2.75
1223	NASDAQ	CECO	Wed, Jul 1, 1998	2.69	2.75	2.56	2.75
1222	NASDAQ	CECO	Tue, Jun 30, 1998	2.69	2.75	2.69	2.69
1221	NASDAQ	CECO	Mon, Jun 29, 1998	2.69	2.69	2.69	2.69
1220	NASDAQ	CECO	Fri, Jun 26, 1998	2.69	2.69	2.69	2.69
1219	NASDAQ	CECO	Thu, Jun 25, 1998	2.75	2.75	2.75	2.75
1218	NASDAQ	CECO	Wed, Jun 24, 1998	2.81	2.81	2.69	2.75
1217	NASDAQ	CECO	Tue, Jun 23, 1998	2.75	2.75	2.75	2.75
1216	NASDAQ	CECO	Mon, Jun 22, 1998	2.75	2.75	2.75	2.75
1215	NASDAQ	CECO	Fri, Jun 19, 1998	2.81	2.81	2.75	2.81
1214	NASDAQ	CECO	Thu, Jun 18, 1998	2.69	2.81	2.69	2.81
1213	NASDAQ	CECO	Wed, Jun 17, 1998	2.69	2.75	2.69	2.75
1212	NASDAQ	CECO	Tue, Jun 16, 1998	2.50	2.63	2.50	2.63
1211	NASDAQ	CECO	Mon, Jun 15, 1998	2.63	2.63	2.63	2.63
1210	NASDAQ	CECO	Fri, Jun 12, 1998	2.50	2.75	2.50	2.75
1209	NASDAQ	CECO	Thu, Jun 11, 1998	2.63	2.63	2.63	2.63
1208	NASDAQ	CECO	Tue, Jun 9, 1998	2.50	2.75	2.50	2.56
1207	NASDAQ	CECO	Mon, Jun 8, 1998	2.50	2.50	2.50	2.50
1206	NASDAQ	CECO	Fri, Jun 5, 1998	2.75	2.88	2.50	2.75
1205	NASDAQ	CECO	Thu, Jun 4, 1998	2.69	2.75	2.50	2.72
1204	NASDAQ	CECO	Wed, Jun 3, 1998	2.44	2.69	2.44	2.69
1203	NASDAQ	CECO	Tue, Jun 2, 1998	2.56	2.63	2.38	2.50
1202	NASDAQ	CECO	Mon, Jun 1, 1998	2.56	2.56	2.56	2.56
1201	NASDAQ	CECO	Fri, May 29, 1998	2.56	2.56	2.56	2.56
1200	NASDAQ	CECO	Wed, May 27, 1998	2.81	2.81	2.75	2.75
1199	NASDAQ	CECO	Tue, May 26, 1998	2.81	2.88	2.75	2.75
1198	NASDAQ	CECO	Fri, May 22, 1998	2.81	3.03	2.75	2.81
1197	NASDAQ	CECO	Thu, May 21, 1998	2.88	2.88	2.81	2.81
1196	NASDAQ	CECO	Tue, May 19, 1998	3.00	3.00	2.81	3.00
1195	NASDAQ	CECO	Mon, May 18, 1998	2.75	2.94	2.75	2.94
1194	NASDAQ	CECO	Fri, May 15, 1998	2.75	2.75	2.69	2.69
1193	NASDAQ	CECO	Thu, May 14, 1998	2.88	2.88	2.88	2.88
1192	NASDAQ	CECO	Wed, May 13, 1998	2.94	2.94	2.94	2.94
1191	NASDAQ	CECO	Tue, May 12, 1998	2.88	2.94	2.88	2.94
1190	NASDAQ	CECO	Mon, May 11, 1998	2.88	2.88	2.88	2.88
1189	NASDAQ	CECO	Thu, May 7, 1998	3.19	3.19	3.13	3.13
1188	NASDAQ	CECO	Wed, May 6, 1998	3.13	3.25	2.94	3.13
1187	NASDAQ	CECO	Tue, May 5, 1998	2.88	3.00	2.88	2.88
1186	NASDAQ	CECO	Mon, May 4, 1998	2.75	3.06	2.75	3.00
1185	NASDAQ	CECO	Fri, May 1, 1998	3.00	3.00	3.00	3.00
1184	NASDAQ	CECO	Thu, Apr 30, 1998	3.00	3.00	3.00	3.00
1183	NASDAQ	CECO	Wed, Apr 29, 1998	3.00	3.00	3.00	3.00
1182	NASDAQ	CECO	Mon, Apr 27, 1998	2.88	2.88	2.75	2.81
1181	NASDAQ	CECO	Fri, Apr 24, 1998	3.00	3.00	3.00	3.00
1180	NASDAQ	CECO	Thu, Apr 23, 1998	3.00	3.06	2.88	3.00
1179	NASDAQ	CECO	Wed, Apr 22, 1998	3.00	3.13	3.00	3.00
1178	NASDAQ	CECO	Tue, Apr 21, 1998	2.81	2.88	2.81	2.88
1177	NASDAQ	CECO	Mon, Apr 20, 1998	2.81	2.81	2.81	2.81
1176	NASDAQ	CECO	Fri, Apr 17, 1998	2.75	2.81	2.75	2.81
1175	NASDAQ	CECO	Thu, Apr 16, 1998	3.00	3.00	2.75	3.00
1174	NASDAQ	CECO	Wed, Apr 15, 1998	3.00	3.00	3.00	3.00
1173	NASDAQ	CECO	Tue, Apr 14, 1998	3.19	3.19	3.00	3.00
1172	NASDAQ	CECO	Mon, Apr 13, 1998	3.13	3.19	3.13	3.19
1171	NASDAQ	CECO	Thu, Apr 9, 1998	3.38	3.63	3.25	3.25
1170	NASDAQ	CECO	Tue, Apr 7, 1998	3.75	3.75	3.38	3.38
1169	NASDAQ	CECO	Mon, Apr 6, 1998	3.75	3.81	3.38	3.75
1168	NASDAQ	CECO	Fri, Apr 3, 1998	3.75	3.81	3.63	3.78
1167	NASDAQ	CECO	Thu, Apr 2, 1998	3.81	4.00	3.75	3.75
1166	NASDAQ	CECO	Wed, Apr 1, 1998	3.63	3.88	3.63	3.88
1165	NASDAQ	CECO	Tue, Mar 31, 1998	3.63	4.00	3.63	3.94
1164	NASDAQ	CECO	Mon, Mar 30, 1998	3.63	3.94	3.63	3.94
1163	NASDAQ	CECO	Fri, Mar 27, 1998	3.63	3.88	3.63	3.75
1162	NASDAQ	CECO	Thu, Mar 26, 1998	3.75	3.88	3.63	3.88
1161	NASDAQ	CECO	Wed, Mar 25, 1998	3.47	3.75	3.47	3.69
1160	NASDAQ	CECO	Tue, Mar 24, 1998	3.38	3.47	3.13	3.47
1159	NASDAQ	CECO	Mon, Mar 23, 1998	3.25	3.38	3.13	3.25
1158	NASDAQ	CECO	Fri, Mar 20, 1998	2.88	3.25	2.88	3.13
1157	NASDAQ	CECO	Thu, Mar 19, 1998	2.88	3.25	2.88	3.25
1156	NASDAQ	CECO	Wed, Mar 18, 1998	3.13	3.13	2.88	3.00
1155	NASDAQ	CECO	Tue, Mar 17, 1998	3.03	3.03	3.00	3.00
1154	NASDAQ	CECO	Mon, Mar 16, 1998	3.00	3.13	3.00	3.00
1153	NASDAQ	CECO	Fri, Mar 13, 1998	3.13	3.13	3.13	3.13
1152	NASDAQ	CECO	Thu, Mar 12, 1998	3.00	3.13	3.00	3.13
1151	NASDAQ	CECO	Wed, Mar 11, 1998	3.25	3.25	3.00	3.19
1150	NASDAQ	CECO	Tue, Mar 10, 1998	3.25	3.25	3.13	3.25
1149	NASDAQ	CECO	Mon, Mar 9, 1998	3.13	3.13	3.00	3.00
1148	NASDAQ	CECO	Fri, Mar 6, 1998	3.13	3.13	3.13	3.13
1147	NASDAQ	CECO	Thu, Mar 5, 1998	3.13	3.13	3.00	3.00
1146	NASDAQ	CECO	Wed, Mar 4, 1998	3.13	3.13	3.00	3.00
1145	NASDAQ	CECO	Tue, Mar 3, 1998	2.94	3.00	2.94	3.00
1144	NASDAQ	CECO	Mon, Mar 2, 1998	2.94	2.94	2.88	2.88
1143	NASDAQ	CECO	Fri, Feb 27, 1998	3.00	3.31	3.00	3.03
1142	NASDAQ	CECO	Thu, Feb 26, 1998	3.19	3.19	2.94	3.00
1141	NASDAQ	CECO	Wed, Feb 25, 1998	3.38	3.38	3.19	3.19
1140	NASDAQ	CECO	Tue, Feb 24, 1998	3.19	3.38	3.19	3.34
1139	NASDAQ	CECO	Mon, Feb 23, 1998	3.25	3.25	3.13	3.19
1138	NASDAQ	CECO	Fri, Feb 20, 1998	3.13	3.31	3.13	3.25
1137	NASDAQ	CECO	Thu, Feb 19, 1998	3.00	3.31	3.00	3.25
1136	NASDAQ	CECO	Wed, Feb 18, 1998	3.31	3.31	3.13	3.31
1135	NASDAQ	CECO	Tue, Feb 17, 1998	3.19	3.31	3.13	3.31
1134	NASDAQ	CECO	Fri, Feb 13, 1998	3.25	3.25	3.13	3.13
1133	NASDAQ	CECO	Wed, Feb 11, 1998	3.06	3.06	3.06	3.06
1132	NASDAQ	CECO	Mon, Feb 9, 1998	3.19	3.31	3.19	3.19
1131	NASDAQ	CECO	Fri, Feb 6, 1998	3.31	3.31	3.19	3.25
1130	NASDAQ	CECO	Thu, Feb 5, 1998	3.25	3.25	3.25	3.25
1129	NASDAQ	CECO	Wed, Feb 4, 1998	3.19	3.31	3.06	3.31
1128	NASDAQ	CECO	Tue, Feb 3, 1998	3.25	3.38	3.13	3.31
1127	NASDAQ	CECO	Mon, Feb 2, 1998	3.25	3.38	3.13	3.25
1126	NASDAQ	CECO	Fri, Jan 30, 1998	3.31	3.31	3.13	3.13
1125	NASDAQ	CECO	Thu, Jan 29, 1998	3.25	3.50	3.13	3.25
1124	NASDAQ	CECO	Wed, Jan 28, 1998	3.19	3.38	3.19	3.31
1123	NASDAQ	CECO	Tue, Jan 27, 1998	3.13	3.25	3.13	3.13
1122	NASDAQ	CECO	Mon, Jan 26, 1998	3.19	3.19	3.19	3.19
1121	NASDAQ	CECO	Fri, Jan 23, 1998	3.13	3.13	2.63	3.00
1120	NASDAQ	CECO	Wed, Jan 21, 1998	3.25	3.25	2.94	3.19
1119	NASDAQ	CECO	Tue, Jan 20, 1998	3.00	3.06	3.00	3.06
1118	NASDAQ	CECO	Fri, Jan 16, 1998	3.22	3.22	3.06	3.06
1117	NASDAQ	CECO	Thu, Jan 15, 1998	3.13	3.13	2.88	3.13
1116	NASDAQ	CECO	Wed, Jan 14, 1998	2.88	3.13	2.88	3.13
1115	NASDAQ	CECO	Tue, Jan 13, 1998	2.88	2.88	2.63	2.88
1114	NASDAQ	CECO	Mon, Jan 12, 1998	3.06	3.06	2.88	2.88
1113	NASDAQ	CECO	Fri, Jan 9, 1998	3.19	3.25	3.13	3.25
1112	NASDAQ	CECO	Thu, Jan 8, 1998	3.19	3.25	3.13	3.25
1111	NASDAQ	CECO	Wed, Jan 7, 1998	3.13	3.25	3.13	3.25
1110	NASDAQ	CECO	Tue, Jan 6, 1998	3.25	3.25	3.06	3.13
1109	NASDAQ	CECO	Mon, Jan 5, 1998	3.13	3.13	3.00	3.13
1108	NASDAQ	CECO	Fri, Jan 2, 1998	3.13	3.31	2.81	3.00
1107	NASDAQ	CECO	Wed, Dec 31, 1997	3.06	3.31	3.06	3.06
1106	NASDAQ	CECO	Tue, Dec 30, 1997	3.09	3.19	3.06	3.19
1105	NASDAQ	CECO	Mon, Dec 29, 1997	3.13	3.25	3.13	3.25
1104	NASDAQ	CECO	Fri, Dec 26, 1997	3.06	3.19	3.06	3.19
1103	NASDAQ	CECO	Wed, Dec 24, 1997	3.13	3.19	3.13	3.19
1102	NASDAQ	CECO	Tue, Dec 23, 1997	3.19	3.19	3.06	3.06
1101	NASDAQ	CECO	Mon, Dec 22, 1997	3.38	3.63	3.25	3.25
1100	NASDAQ	CECO	Fri, Dec 19, 1997	3.31	3.50	3.31	3.44
1099	NASDAQ	CECO	Thu, Dec 18, 1997	3.50	3.50	3.31	3.31
1098	NASDAQ	CECO	Tue, Dec 16, 1997	3.75	3.75	3.63	3.63
1097	NASDAQ	CECO	Mon, Dec 15, 1997	3.38	3.88	3.38	3.88
1096	NASDAQ	CECO	Fri, Dec 12, 1997	3.81	3.81	3.50	3.50
1095	NASDAQ	CECO	Thu, Dec 11, 1997	3.75	3.75	3.50	3.50
1094	NASDAQ	CECO	Wed, Dec 10, 1997	3.75	4.00	3.75	4.00
1093	NASDAQ	CECO	Tue, Dec 9, 1997	3.88	3.88	3.88	3.88
1092	NASDAQ	CECO	Mon, Dec 8, 1997	3.81	3.84	3.81	3.84
1091	NASDAQ	CECO	Fri, Dec 5, 1997	3.81	3.81	3.81	3.81
1090	NASDAQ	CECO	Thu, Dec 4, 1997	3.81	4.00	3.81	4.00
1089	NASDAQ	CECO	Wed, Dec 3, 1997	4.13	4.13	3.88	3.91
1088	NASDAQ	CECO	Tue, Dec 2, 1997	4.13	4.13	3.88	4.00
1087	NASDAQ	CECO	Mon, Dec 1, 1997	4.00	4.44	3.88	4.13
1086	NASDAQ	CECO	Fri, Nov 28, 1997	3.69	3.75	3.63	3.75
1085	NASDAQ	CECO	Wed, Nov 26, 1997	3.81	3.88	3.75	3.88
1084	NASDAQ	CECO	Mon, Nov 24, 1997	3.91	4.06	3.91	4.06
1083	NASDAQ	CECO	Fri, Nov 21, 1997	3.91	4.00	3.91	4.00
1082	NASDAQ	CECO	Thu, Nov 20, 1997	3.91	4.00	3.91	4.00
1081	NASDAQ	CECO	Wed, Nov 19, 1997	4.00	4.00	3.94	4.00
1080	NASDAQ	CECO	Tue, Nov 18, 1997	3.94	4.00	3.94	3.94
1079	NASDAQ	CECO	Mon, Nov 17, 1997	4.13	4.13	3.94	3.94
1078	NASDAQ	CECO	Fri, Nov 14, 1997	4.00	4.13	3.81	4.00
1077	NASDAQ	CECO	Thu, Nov 13, 1997	4.13	4.13	4.00	4.00
1076	NASDAQ	CECO	Wed, Nov 12, 1997	4.13	4.13	4.00	4.00
1075	NASDAQ	CECO	Tue, Nov 11, 1997	4.50	4.50	4.00	4.19
1074	NASDAQ	CECO	Mon, Nov 10, 1997	4.50	4.56	4.38	4.50
1073	NASDAQ	CECO	Fri, Nov 7, 1997	4.31	4.50	4.31	4.50
1072	NASDAQ	CECO	Thu, Nov 6, 1997	4.50	4.50	4.50	4.50
1071	NASDAQ	CECO	Wed, Nov 5, 1997	4.19	4.38	4.19	4.38
1070	NASDAQ	CECO	Tue, Nov 4, 1997	4.25	4.25	4.19	4.25
1069	NASDAQ	CECO	Mon, Nov 3, 1997	4.25	4.38	4.13	4.13
1068	NASDAQ	CECO	Fri, Oct 31, 1997	4.13	4.25	4.13	4.25
1067	NASDAQ	CECO	Thu, Oct 30, 1997	4.19	4.38	4.19	4.19
1066	NASDAQ	CECO	Wed, Oct 29, 1997	4.19	4.31	4.19	4.25
1065	NASDAQ	CECO	Tue, Oct 28, 1997	4.25	4.38	4.13	4.13
1064	NASDAQ	CECO	Mon, Oct 27, 1997	4.50	4.50	4.38	4.50
1063	NASDAQ	CECO	Fri, Oct 24, 1997	4.50	4.75	4.50	4.50
1062	NASDAQ	CECO	Thu, Oct 23, 1997	4.50	4.50	4.50	4.50
1061	NASDAQ	CECO	Wed, Oct 22, 1997	4.50	4.81	4.50	4.63
1060	NASDAQ	CECO	Tue, Oct 21, 1997	4.50	4.69	4.00	4.69
1059	NASDAQ	CECO	Mon, Oct 20, 1997	4.75	4.94	4.50	4.63
1058	NASDAQ	CECO	Fri, Oct 17, 1997	4.88	5.00	4.63	5.00
1057	NASDAQ	CECO	Thu, Oct 16, 1997	4.63	4.88	4.63	4.88
1056	NASDAQ	CECO	Wed, Oct 15, 1997	4.31	4.50	4.31	4.50
1055	NASDAQ	CECO	Tue, Oct 14, 1997	4.31	4.50	4.31	4.38
1054	NASDAQ	CECO	Mon, Oct 13, 1997	4.63	4.63	4.31	4.31
1053	NASDAQ	CECO	Fri, Oct 10, 1997	4.38	4.63	4.38	4.63
1052	NASDAQ	CECO	Thu, Oct 9, 1997	4.56	4.75	4.25	4.63
1051	NASDAQ	CECO	Wed, Oct 8, 1997	4.88	4.88	4.56	4.63
1050	NASDAQ	CECO	Tue, Oct 7, 1997	4.88	4.88	4.63	4.81
1049	NASDAQ	CECO	Mon, Oct 6, 1997	5.00	5.00	4.50	4.88
1048	NASDAQ	CECO	Fri, Oct 3, 1997	5.00	5.00	4.88	5.00
1047	NASDAQ	CECO	Thu, Oct 2, 1997	4.94	5.00	4.88	4.94
1046	NASDAQ	CECO	Wed, Oct 1, 1997	4.38	4.94	4.38	4.72
1045	NASDAQ	CECO	Tue, Sep 30, 1997	4.63	4.88	4.38	4.72
1044	NASDAQ	CECO	Mon, Sep 29, 1997	4.56	4.63	4.19	4.63
1043	NASDAQ	CECO	Fri, Sep 26, 1997	4.19	4.50	4.19	4.50
1042	NASDAQ	CECO	Thu, Sep 25, 1997	4.13	4.44	4.13	4.44
1041	NASDAQ	CECO	Wed, Sep 24, 1997	4.13	4.25	4.13	4.25
1040	NASDAQ	CECO	Tue, Sep 23, 1997	4.06	4.44	4.06	4.13
1039	NASDAQ	CECO	Mon, Sep 22, 1997	4.06	4.25	4.06	4.13
1038	NASDAQ	CECO	Fri, Sep 19, 1997	4.31	4.31	4.06	4.06
1037	NASDAQ	CECO	Thu, Sep 18, 1997	4.31	4.44	4.06	4.31
1036	NASDAQ	CECO	Wed, Sep 17, 1997	3.88	4.38	3.88	4.25
1035	NASDAQ	CECO	Tue, Sep 16, 1997	4.00	4.06	3.88	4.06
1034	NASDAQ	CECO	Mon, Sep 15, 1997	3.81	4.19	3.81	3.88
1033	NASDAQ	CECO	Fri, Sep 12, 1997	4.00	4.00	4.00	4.00
1032	NASDAQ	CECO	Thu, Sep 11, 1997	4.00	4.00	3.88	4.00
1031	NASDAQ	CECO	Wed, Sep 10, 1997	4.06	4.06	3.81	4.06
1030	NASDAQ	CECO	Tue, Sep 9, 1997	4.13	4.13	3.81	4.00
1029	NASDAQ	CECO	Mon, Sep 8, 1997	4.00	4.13	3.94	4.03
1028	NASDAQ	CECO	Fri, Sep 5, 1997	4.00	4.00	3.69	4.00
1027	NASDAQ	CECO	Thu, Sep 4, 1997	3.69	4.00	3.63	4.00
1026	NASDAQ	CECO	Wed, Sep 3, 1997	3.50	3.69	3.50	3.63
1025	NASDAQ	CECO	Tue, Sep 2, 1997	3.69	3.69	3.50	3.69
1024	NASDAQ	CECO	Fri, Aug 29, 1997	3.50	3.63	3.50	3.63
1023	NASDAQ	CECO	Thu, Aug 28, 1997	3.69	3.69	3.50	3.56
1022	NASDAQ	CECO	Wed, Aug 27, 1997	3.50	3.50	3.50	3.50
1021	NASDAQ	CECO	Tue, Aug 26, 1997	3.56	3.75	3.50	3.56
1020	NASDAQ	CECO	Mon, Aug 25, 1997	3.25	3.69	3.25	3.69
1019	NASDAQ	CECO	Fri, Aug 22, 1997	3.25	3.38	3.25	3.38
1018	NASDAQ	CECO	Thu, Aug 21, 1997	3.25	3.44	3.25	3.44
1017	NASDAQ	CECO	Wed, Aug 20, 1997	3.25	3.25	3.19	3.19
1016	NASDAQ	CECO	Tue, Aug 19, 1997	3.19	3.25	3.19	3.19
1015	NASDAQ	CECO	Mon, Aug 18, 1997	3.25	3.44	3.19	3.19
1014	NASDAQ	CECO	Fri, Aug 15, 1997	3.19	3.19	3.19	3.19
1013	NASDAQ	CECO	Thu, Aug 14, 1997	3.50	3.50	3.25	3.25
1012	NASDAQ	CECO	Wed, Aug 13, 1997	3.19	3.25	3.13	3.19
1011	NASDAQ	CECO	Tue, Aug 12, 1997	3.19	3.56	3.19	3.56
1010	NASDAQ	CECO	Mon, Aug 11, 1997	3.56	3.56	3.56	3.56
1009	NASDAQ	CECO	Fri, Aug 8, 1997	3.19	3.56	3.19	3.56
1008	NASDAQ	CECO	Thu, Aug 7, 1997	3.56	3.63	3.19	3.19
1007	NASDAQ	CECO	Wed, Aug 6, 1997	3.69	3.69	3.38	3.50
1006	NASDAQ	CECO	Tue, Aug 5, 1997	3.50	3.69	3.50	3.69
1005	NASDAQ	CECO	Mon, Aug 4, 1997	3.63	3.81	3.56	3.75
1004	NASDAQ	CECO	Fri, Aug 1, 1997	3.75	3.81	3.50	3.69
1003	NASDAQ	CECO	Thu, Jul 31, 1997	3.56	3.75	3.31	3.56
1002	NASDAQ	CECO	Wed, Jul 30, 1997	3.38	3.56	3.38	3.50
1001	NASDAQ	CECO	Tue, Jul 29, 1997	3.13	3.19	3.13	3.13
1000	NASDAQ	CECO	Mon, Jul 28, 1997	3.13	3.13	3.13	3.13
999	NASDAQ	CECO	Fri, Jul 25, 1997	3.13	3.25	3.13	3.25
998	NASDAQ	CECO	Thu, Jul 24, 1997	3.06	3.25	3.06	3.25
997	NASDAQ	CECO	Wed, Jul 23, 1997	3.13	3.50	3.06	3.50
996	NASDAQ	CECO	Tue, Jul 22, 1997	3.19	3.50	3.19	3.19
995	NASDAQ	CECO	Mon, Jul 21, 1997	3.19	3.25	3.19	3.25
994	NASDAQ	CECO	Fri, Jul 18, 1997	3.25	3.63	3.19	3.63
993	NASDAQ	CECO	Thu, Jul 17, 1997	3.25	3.28	3.13	3.28
992	NASDAQ	CECO	Wed, Jul 16, 1997	3.25	3.50	3.25	3.38
991	NASDAQ	CECO	Tue, Jul 15, 1997	3.75	3.75	3.25	3.38
990	NASDAQ	CECO	Mon, Jul 14, 1997	3.56	3.81	3.31	3.69
989	NASDAQ	CECO	Fri, Jul 11, 1997	3.50	3.56	3.50	3.56
988	NASDAQ	CECO	Wed, Jul 9, 1997	3.38	3.53	3.31	3.31
987	NASDAQ	CECO	Tue, Jul 8, 1997	3.63	3.63	3.63	3.63
986	NASDAQ	CECO	Mon, Jul 7, 1997	3.63	3.63	3.38	3.38
985	NASDAQ	CECO	Thu, Jul 3, 1997	3.38	3.44	3.38	3.38
984	NASDAQ	CECO	Wed, Jul 2, 1997	3.73	3.75	3.73	3.75
983	NASDAQ	CECO	Tue, Jul 1, 1997	3.38	3.75	3.38	3.44
982	NASDAQ	CECO	Mon, Jun 30, 1997	3.38	3.50	3.38	3.38
981	NASDAQ	CECO	Fri, Jun 27, 1997	3.63	3.63	3.38	3.38
980	NASDAQ	CECO	Thu, Jun 26, 1997	3.50	3.63	3.38	3.50
979	NASDAQ	CECO	Wed, Jun 25, 1997	3.75	3.75	3.50	3.50
978	NASDAQ	CECO	Tue, Jun 24, 1997	3.50	3.81	3.50	3.81
977	NASDAQ	CECO	Mon, Jun 23, 1997	3.69	3.69	3.44	3.44
976	NASDAQ	CECO	Fri, Jun 20, 1997	3.44	3.61	3.38	3.44
975	NASDAQ	CECO	Thu, Jun 19, 1997	3.69	3.69	3.44	3.50
974	NASDAQ	CECO	Wed, Jun 18, 1997	3.44	3.44	3.44	3.44
973	NASDAQ	CECO	Tue, Jun 17, 1997	3.38	3.75	3.38	3.44
972	NASDAQ	CECO	Fri, Jun 13, 1997	3.44	3.50	3.31	3.38
971	NASDAQ	CECO	Thu, Jun 12, 1997	3.31	3.50	3.31	3.31
970	NASDAQ	CECO	Wed, Jun 11, 1997	3.56	3.63	3.31	3.56
969	NASDAQ	CECO	Tue, Jun 10, 1997	3.31	3.56	3.31	3.56
968	NASDAQ	CECO	Mon, Jun 9, 1997	3.56	3.63	3.31	3.50
967	NASDAQ	CECO	Fri, Jun 6, 1997	3.19	3.63	3.19	3.50
966	NASDAQ	CECO	Thu, Jun 5, 1997	3.19	3.22	3.19	3.22
965	NASDAQ	CECO	Wed, Jun 4, 1997	3.19	3.25	3.19	3.22
964	NASDAQ	CECO	Tue, Jun 3, 1997	3.19	3.38	3.19	3.19
963	NASDAQ	CECO	Mon, Jun 2, 1997	3.31	3.38	3.06	3.38
962	NASDAQ	CECO	Fri, May 30, 1997	3.38	3.38	3.13	3.31
961	NASDAQ	CECO	Thu, May 29, 1997	3.00	3.50	3.00	3.38
960	NASDAQ	CECO	Wed, May 28, 1997	2.88	3.03	2.75	3.00
959	NASDAQ	CECO	Tue, May 27, 1997	2.88	3.00	2.88	2.88
958	NASDAQ	CECO	Fri, May 23, 1997	2.81	2.94	2.81	2.94
957	NASDAQ	CECO	Thu, May 22, 1997	2.88	3.00	2.75	2.88
956	NASDAQ	CECO	Wed, May 21, 1997	2.88	2.88	2.56	2.69
955	NASDAQ	CECO	Tue, May 20, 1997	2.50	2.50	2.50	2.50
954	NASDAQ	CECO	Mon, May 19, 1997	3.09	3.09	2.56	2.56
953	NASDAQ	CECO	Fri, May 16, 1997	2.88	3.13	2.81	2.88
952	NASDAQ	CECO	Thu, May 15, 1997	2.50	2.81	2.50	2.81
951	NASDAQ	CECO	Wed, May 14, 1997	2.50	2.56	2.44	2.56
950	NASDAQ	CECO	Mon, May 12, 1997	2.31	2.50	2.31	2.44
949	NASDAQ	CECO	Fri, May 9, 1997	2.31	2.31	2.31	2.31
948	NASDAQ	CECO	Wed, May 7, 1997	2.50	2.50	2.34	2.44
947	NASDAQ	CECO	Tue, May 6, 1997	2.50	2.69	2.41	2.50
946	NASDAQ	CECO	Mon, May 5, 1997	2.52	2.69	2.38	2.69
945	NASDAQ	CECO	Fri, May 2, 1997	2.50	2.75	2.25	2.69
944	NASDAQ	CECO	Thu, May 1, 1997	2.13	2.50	2.13	2.31
943	NASDAQ	CECO	Wed, Apr 30, 1997	2.34	2.38	2.13	2.38
942	NASDAQ	CECO	Tue, Apr 29, 1997	2.13	2.28	2.09	2.28
941	NASDAQ	CECO	Mon, Apr 28, 1997	2.06	2.13	1.94	1.94
940	NASDAQ	CECO	Wed, Apr 23, 1997	2.00	2.06	1.97	2.06
939	NASDAQ	CECO	Tue, Apr 22, 1997	1.91	2.13	1.88	1.88
938	NASDAQ	CECO	Mon, Apr 21, 1997	2.03	2.13	1.91	2.06
937	NASDAQ	CECO	Fri, Apr 18, 1997	2.22	2.22	2.03	2.03
936	NASDAQ	CECO	Wed, Apr 16, 1997	2.13	2.13	2.03	2.03
935	NASDAQ	CECO	Mon, Apr 14, 1997	2.31	2.31	2.31	2.31
934	NASDAQ	CECO	Fri, Apr 11, 1997	2.13	2.19	2.13	2.19
933	NASDAQ	CECO	Thu, Apr 10, 1997	2.13	2.13	2.13	2.13
932	NASDAQ	CECO	Wed, Apr 9, 1997	2.25	2.25	2.25	2.25
931	NASDAQ	CECO	Tue, Apr 8, 1997	2.13	2.31	2.13	2.31
930	NASDAQ	CECO	Mon, Apr 7, 1997	2.13	2.31	2.13	2.31
929	NASDAQ	CECO	Fri, Apr 4, 1997	2.31	2.31	2.13	2.13
928	NASDAQ	CECO	Thu, Apr 3, 1997	2.25	2.38	2.13	2.19
927	NASDAQ	CECO	Wed, Apr 2, 1997	2.13	2.25	2.13	2.13
926	NASDAQ	CECO	Mon, Mar 31, 1997	2.31	2.38	2.25	2.31
925	NASDAQ	CECO	Thu, Mar 27, 1997	2.31	2.56	2.31	2.34
924	NASDAQ	CECO	Wed, Mar 26, 1997	2.31	2.31	2.31	2.31
923	NASDAQ	CECO	Tue, Mar 25, 1997	2.38	2.38	2.22	2.25
922	NASDAQ	CECO	Mon, Mar 24, 1997	2.44	2.50	2.16	2.38
921	NASDAQ	CECO	Fri, Mar 21, 1997	2.44	2.69	2.44	2.69
920	NASDAQ	CECO	Thu, Mar 20, 1997	2.44	2.75	2.44	2.75
919	NASDAQ	CECO	Wed, Mar 19, 1997	2.88	2.91	2.44	2.75
918	NASDAQ	CECO	Tue, Mar 18, 1997	2.78	2.88	2.50	2.88
917	NASDAQ	CECO	Mon, Mar 17, 1997	2.69	2.75	2.50	2.69
916	NASDAQ	CECO	Fri, Mar 14, 1997	2.63	2.63	2.56	2.63
915	NASDAQ	CECO	Thu, Mar 13, 1997	2.44	2.69	2.44	2.69
914	NASDAQ	CECO	Wed, Mar 12, 1997	2.75	2.75	2.50	2.75
913	NASDAQ	CECO	Tue, Mar 11, 1997	2.50	2.50	2.44	2.44
912	NASDAQ	CECO	Mon, Mar 10, 1997	2.44	2.44	2.44	2.44
911	NASDAQ	CECO	Fri, Mar 7, 1997	2.44	2.63	2.44	2.63
910	NASDAQ	CECO	Thu, Mar 6, 1997	2.63	2.63	2.63	2.63
909	NASDAQ	CECO	Wed, Mar 5, 1997	2.69	2.69	2.50	2.63
908	NASDAQ	CECO	Tue, Mar 4, 1997	2.81	2.81	2.44	2.44
907	NASDAQ	CECO	Mon, Mar 3, 1997	2.63	2.81	2.44	2.50
906	NASDAQ	CECO	Fri, Feb 28, 1997	2.56	2.69	2.50	2.50
905	NASDAQ	CECO	Thu, Feb 27, 1997	2.69	2.81	2.56	2.56
904	NASDAQ	CECO	Wed, Feb 26, 1997	2.81	2.81	2.69	2.81
903	NASDAQ	CECO	Tue, Feb 25, 1997	3.06	3.06	2.69	2.69
902	NASDAQ	CECO	Mon, Feb 24, 1997	3.00	3.13	2.81	2.81
901	NASDAQ	CECO	Fri, Feb 21, 1997	2.75	3.00	2.75	2.75
900	NASDAQ	CECO	Thu, Feb 20, 1997	2.75	2.75	2.63	2.75
899	NASDAQ	CECO	Wed, Feb 19, 1997	2.63	2.75	2.63	2.75
898	NASDAQ	CECO	Tue, Feb 18, 1997	2.63	2.75	2.63	2.63
897	NASDAQ	CECO	Fri, Feb 14, 1997	2.69	2.81	2.69	2.69
896	NASDAQ	CECO	Thu, Feb 13, 1997	2.63	2.88	2.44	2.50
895	NASDAQ	CECO	Wed, Feb 12, 1997	2.81	2.88	2.63	2.75
894	NASDAQ	CECO	Tue, Feb 11, 1997	2.88	2.88	2.63	2.63
893	NASDAQ	CECO	Mon, Feb 10, 1997	2.63	2.88	2.63	2.81
892	NASDAQ	CECO	Fri, Feb 7, 1997	2.69	2.88	2.63	2.75
891	NASDAQ	CECO	Thu, Feb 6, 1997	2.63	2.75	2.50	2.56
890	NASDAQ	CECO	Wed, Feb 5, 1997	2.63	2.63	2.50	2.63
889	NASDAQ	CECO	Tue, Feb 4, 1997	2.44	2.63	2.44	2.50
888	NASDAQ	CECO	Mon, Feb 3, 1997	2.56	2.63	2.44	2.44
887	NASDAQ	CECO	Fri, Jan 31, 1997	2.50	2.50	2.38	2.50
886	NASDAQ	CECO	Thu, Jan 30, 1997	2.50	2.50	2.38	2.38
885	NASDAQ	CECO	Wed, Jan 29, 1997	2.44	2.50	2.31	2.50
884	NASDAQ	CECO	Tue, Jan 28, 1997	2.50	2.50	2.38	2.44
883	NASDAQ	CECO	Mon, Jan 27, 1997	2.31	2.50	2.13	2.44
882	NASDAQ	CECO	Fri, Jan 24, 1997	2.38	2.44	2.00	2.34
881	NASDAQ	CECO	Thu, Jan 23, 1997	2.38	2.44	2.00	2.38
880	NASDAQ	CECO	Wed, Jan 22, 1997	2.00	2.38	2.00	2.31
879	NASDAQ	CECO	Tue, Jan 21, 1997	2.00	2.00	2.00	2.00
878	NASDAQ	CECO	Mon, Jan 20, 1997	2.25	2.25	2.19	2.19
877	NASDAQ	CECO	Fri, Jan 17, 1997	2.19	2.25	2.00	2.25
876	NASDAQ	CECO	Thu, Jan 16, 1997	2.19	2.19	2.19	2.19
875	NASDAQ	CECO	Wed, Jan 15, 1997	2.31	2.31	1.94	1.94
874	NASDAQ	CECO	Tue, Jan 14, 1997	2.00	2.31	2.00	2.31
873	NASDAQ	CECO	Mon, Jan 13, 1997	2.31	2.31	2.25	2.25
872	NASDAQ	CECO	Fri, Jan 10, 1997	2.31	2.31	2.31	2.31
871	NASDAQ	CECO	Thu, Jan 9, 1997	2.31	2.31	2.25	2.31
870	NASDAQ	CECO	Wed, Jan 8, 1997	2.00	2.31	2.00	2.31
869	NASDAQ	CECO	Tue, Jan 7, 1997	2.31	2.31	2.25	2.25
868	NASDAQ	CECO	Mon, Jan 6, 1997	2.25	2.38	2.13	2.31
867	NASDAQ	CECO	Fri, Jan 3, 1997	2.25	2.38	1.94	2.25
866	NASDAQ	CECO	Thu, Jan 2, 1997	1.94	2.25	1.94	2.13
865	NASDAQ	CECO	Tue, Dec 31, 1996	1.94	2.06	1.94	2.00
864	NASDAQ	CECO	Mon, Dec 30, 1996	2.06	2.06	1.75	2.00
863	NASDAQ	CECO	Fri, Dec 27, 1996	1.94	2.06	1.77	2.00
862	NASDAQ	CECO	Thu, Dec 26, 1996	1.94	2.00	1.94	2.00
861	NASDAQ	CECO	Tue, Dec 24, 1996	2.13	2.13	2.00	2.00
860	NASDAQ	CECO	Mon, Dec 23, 1996	2.00	2.13	1.94	1.94
859	NASDAQ	CECO	Fri, Dec 20, 1996	2.06	2.13	2.00	2.13
858	NASDAQ	CECO	Thu, Dec 19, 1996	1.75	2.06	1.75	2.06
857	NASDAQ	CECO	Wed, Dec 18, 1996	2.13	2.13	1.88	2.00
856	NASDAQ	CECO	Tue, Dec 17, 1996	2.00	2.19	1.69	2.00
855	NASDAQ	CECO	Mon, Dec 16, 1996	1.75	2.00	1.66	1.88
854	NASDAQ	CECO	Fri, Dec 13, 1996	2.00	2.00	1.81	1.94
853	NASDAQ	CECO	Thu, Dec 12, 1996	2.13	2.25	2.00	2.13
852	NASDAQ	CECO	Wed, Dec 11, 1996	2.25	2.25	2.13	2.13
851	NASDAQ	CECO	Tue, Dec 10, 1996	2.25	2.25	2.25	2.25
850	NASDAQ	CECO	Mon, Dec 9, 1996	2.13	2.38	2.13	2.13
849	NASDAQ	CECO	Fri, Dec 6, 1996	2.38	2.38	2.13	2.13
848	NASDAQ	CECO	Thu, Dec 5, 1996	2.38	2.50	2.38	2.38
847	NASDAQ	CECO	Wed, Dec 4, 1996	2.38	2.53	2.38	2.53
846	NASDAQ	CECO	Tue, Dec 3, 1996	2.38	2.38	2.38	2.38
845	NASDAQ	CECO	Mon, Dec 2, 1996	2.38	2.50	2.38	2.50
844	NASDAQ	CECO	Fri, Nov 29, 1996	2.53	2.53	2.50	2.53
843	NASDAQ	CECO	Wed, Nov 27, 1996	2.50	2.53	2.38	2.44
842	NASDAQ	CECO	Tue, Nov 26, 1996	2.31	2.38	2.31	2.38
841	NASDAQ	CECO	Mon, Nov 25, 1996	2.44	2.44	2.38	2.38
840	NASDAQ	CECO	Fri, Nov 22, 1996	2.53	2.53	2.33	2.33
839	NASDAQ	CECO	Thu, Nov 21, 1996	2.31	2.56	2.31	2.50
838	NASDAQ	CECO	Wed, Nov 20, 1996	2.31	2.63	2.31	2.44
837	NASDAQ	CECO	Tue, Nov 19, 1996	2.63	2.75	2.38	2.56
836	NASDAQ	CECO	Mon, Nov 18, 1996	2.75	2.75	2.63	2.75
835	NASDAQ	CECO	Fri, Nov 15, 1996	2.63	2.75	2.50	2.63
834	NASDAQ	CECO	Thu, Nov 14, 1996	2.50	2.63	2.50	2.63
833	NASDAQ	CECO	Wed, Nov 13, 1996	2.63	2.63	2.50	2.50
832	NASDAQ	CECO	Tue, Nov 12, 1996	2.50	2.63	2.38	2.63
831	NASDAQ	CECO	Mon, Nov 11, 1996	2.56	2.56	2.38	2.50
830	NASDAQ	CECO	Fri, Nov 8, 1996	2.13	2.56	2.13	2.56
829	NASDAQ	CECO	Thu, Nov 7, 1996	2.06	2.13	2.06	2.13
828	NASDAQ	CECO	Tue, Nov 5, 1996	1.88	2.13	1.75	1.75
827	NASDAQ	CECO	Mon, Nov 4, 1996	2.00	2.00	2.00	2.00
826	NASDAQ	CECO	Fri, Nov 1, 1996	2.00	2.31	2.00	2.25
825	NASDAQ	CECO	Thu, Oct 31, 1996	2.06	2.31	2.00	2.31
824	NASDAQ	CECO	Wed, Oct 30, 1996	2.06	2.06	2.06	2.06
823	NASDAQ	CECO	Mon, Oct 28, 1996	2.19	2.38	2.19	2.25
822	NASDAQ	CECO	Fri, Oct 25, 1996	2.19	2.19	2.19	2.19
821	NASDAQ	CECO	Thu, Oct 24, 1996	2.50	2.50	2.31	2.38
820	NASDAQ	CECO	Wed, Oct 23, 1996	2.69	2.69	2.31	2.44
819	NASDAQ	CECO	Tue, Oct 22, 1996	2.63	2.75	2.56	2.56
818	NASDAQ	CECO	Mon, Oct 21, 1996	2.63	2.63	2.63	2.63
817	NASDAQ	CECO	Fri, Oct 18, 1996	2.88	2.88	2.75	2.88
816	NASDAQ	CECO	Thu, Oct 17, 1996	2.63	2.81	2.63	2.81
815	NASDAQ	CECO	Wed, Oct 16, 1996	2.94	2.94	2.63	2.63
814	NASDAQ	CECO	Tue, Oct 15, 1996	2.63	2.94	2.63	2.88
813	NASDAQ	CECO	Fri, Oct 11, 1996	2.88	2.94	2.63	2.88
812	NASDAQ	CECO	Thu, Oct 10, 1996	2.94	2.94	2.63	2.63
811	NASDAQ	CECO	Wed, Oct 9, 1996	2.94	2.94	2.75	2.88
810	NASDAQ	CECO	Tue, Oct 8, 1996	2.75	2.88	2.63	2.84
809	NASDAQ	CECO	Mon, Oct 7, 1996	2.69	2.75	2.56	2.63
808	NASDAQ	CECO	Fri, Oct 4, 1996	2.38	2.75	2.38	2.69
807	NASDAQ	CECO	Thu, Oct 3, 1996	2.16	2.75	2.16	2.63
806	NASDAQ	CECO	Wed, Oct 2, 1996	2.13	2.25	1.88	2.13
805	NASDAQ	CECO	Tue, Oct 1, 1996	2.00	2.13	1.88	1.88
804	NASDAQ	CECO	Mon, Sep 30, 1996	1.75	2.00	1.75	2.00
803	NASDAQ	CECO	Fri, Sep 27, 1996	2.00	2.00	1.75	1.88
802	NASDAQ	CECO	Thu, Sep 26, 1996	2.00	2.00	1.94	1.94
801	NASDAQ	CECO	Wed, Sep 25, 1996	2.13	2.13	2.13	2.13
800	NASDAQ	CECO	Tue, Sep 24, 1996	1.88	2.13	1.88	2.13
799	NASDAQ	CECO	Mon, Sep 23, 1996	2.13	2.13	1.88	1.88
798	NASDAQ	CECO	Fri, Sep 20, 1996	2.13	2.13	1.88	2.13
797	NASDAQ	CECO	Thu, Sep 19, 1996	2.25	2.25	1.88	2.13
796	NASDAQ	CECO	Wed, Sep 18, 1996	2.25	2.25	1.88	1.88
795	NASDAQ	CECO	Tue, Sep 17, 1996	2.38	2.38	2.00	2.00
794	NASDAQ	CECO	Mon, Sep 16, 1996	2.63	2.63	2.38	2.50
793	NASDAQ	CECO	Fri, Sep 13, 1996	2.75	2.75	2.63	2.75
792	NASDAQ	CECO	Thu, Sep 12, 1996	2.56	2.81	2.56	2.75
791	NASDAQ	CECO	Wed, Sep 11, 1996	2.63	2.81	2.50	2.75
790	NASDAQ	CECO	Tue, Sep 10, 1996	2.13	2.50	1.88	2.50
789	NASDAQ	CECO	Mon, Sep 9, 1996	2.13	2.13	1.88	2.13
788	NASDAQ	CECO	Fri, Sep 6, 1996	1.81	1.81	1.81	1.81
787	NASDAQ	CECO	Thu, Sep 5, 1996	1.75	1.75	1.75	1.75
786	NASDAQ	CECO	Wed, Sep 4, 1996	1.75	1.75	1.75	1.75
785	NASDAQ	CECO	Tue, Sep 3, 1996	1.88	1.88	1.75	1.75
784	NASDAQ	CECO	Fri, Aug 30, 1996	2.13	2.13	2.00	2.00
783	NASDAQ	CECO	Thu, Aug 29, 1996	2.00	2.13	2.00	2.13
782	NASDAQ	CECO	Mon, Aug 26, 1996	2.13	2.13	1.88	1.94
781	NASDAQ	CECO	Fri, Aug 23, 1996	2.13	2.13	2.00	2.00
780	NASDAQ	CECO	Thu, Aug 22, 1996	2.00	2.13	1.88	2.13
779	NASDAQ	CECO	Tue, Aug 20, 1996	1.94	2.13	1.88	2.13
778	NASDAQ	CECO	Mon, Aug 19, 1996	1.94	1.94	1.94	1.94
777	NASDAQ	CECO	Fri, Aug 16, 1996	1.75	1.94	1.75	1.88
776	NASDAQ	CECO	Thu, Aug 15, 1996	2.13	2.13	1.75	1.81
775	NASDAQ	CECO	Wed, Aug 14, 1996	1.88	2.00	1.88	2.00
774	NASDAQ	CECO	Tue, Aug 13, 1996	1.88	1.88	1.81	1.81
773	NASDAQ	CECO	Mon, Aug 12, 1996	1.94	2.13	1.88	1.94
772	NASDAQ	CECO	Fri, Aug 9, 1996	1.75	2.13	1.75	2.03
771	NASDAQ	CECO	Thu, Aug 8, 1996	2.00	2.13	1.75	1.75
770	NASDAQ	CECO	Wed, Aug 7, 1996	1.75	2.00	1.75	2.00
769	NASDAQ	CECO	Tue, Aug 6, 1996	2.00	2.00	1.69	2.00
768	NASDAQ	CECO	Mon, Aug 5, 1996	2.00	2.00	1.69	2.00
767	NASDAQ	CECO	Fri, Aug 2, 1996	2.00	2.00	1.69	2.00
766	NASDAQ	CECO	Thu, Aug 1, 1996	2.00	2.00	1.69	2.00
765	NASDAQ	CECO	Wed, Jul 31, 1996	2.25	2.25	1.75	2.00
764	NASDAQ	CECO	Tue, Jul 30, 1996	2.38	2.38	2.00	2.13
763	NASDAQ	CECO	Mon, Jul 29, 1996	2.19	2.50	2.19	2.25
762	NASDAQ	CECO	Fri, Jul 26, 1996	2.19	2.19	2.19	2.19
761	NASDAQ	CECO	Thu, Jul 25, 1996	2.38	2.38	2.19	2.19
760	NASDAQ	CECO	Wed, Jul 24, 1996	2.19	2.50	2.19	2.19
759	NASDAQ	CECO	Mon, Jul 22, 1996	2.38	2.38	2.19	2.19
758	NASDAQ	CECO	Fri, Jul 19, 1996	2.25	2.63	2.25	2.25
757	NASDAQ	CECO	Thu, Jul 18, 1996	2.38	2.50	2.25	2.50
756	NASDAQ	CECO	Tue, Jul 16, 1996	2.44	2.63	2.44	2.63
755	NASDAQ	CECO	Fri, Jul 12, 1996	2.88	2.88	2.56	2.56
754	NASDAQ	CECO	Thu, Jul 11, 1996	2.75	2.75	2.50	2.50
753	NASDAQ	CECO	Wed, Jul 10, 1996	2.88	2.88	2.63	2.63
752	NASDAQ	CECO	Tue, Jul 9, 1996	2.69	2.69	2.69	2.69
751	NASDAQ	CECO	Mon, Jul 8, 1996	2.81	3.00	2.69	3.00
750	NASDAQ	CECO	Wed, Jul 3, 1996	3.00	3.00	2.94	2.94
749	NASDAQ	CECO	Tue, Jul 2, 1996	2.88	2.88	2.81	2.81
748	NASDAQ	CECO	Mon, Jul 1, 1996	3.13	3.13	3.13	3.13
747	NASDAQ	CECO	Fri, Jun 28, 1996	3.00	3.13	2.81	3.13
746	NASDAQ	CECO	Thu, Jun 27, 1996	2.88	2.88	2.81	2.81
745	NASDAQ	CECO	Wed, Jun 26, 1996	3.13	3.25	2.88	3.00
744	NASDAQ	CECO	Tue, Jun 25, 1996	3.25	3.38	3.13	3.19
743	NASDAQ	CECO	Mon, Jun 24, 1996	3.25	3.25	3.25	3.25
742	NASDAQ	CECO	Fri, Jun 21, 1996	3.25	3.25	3.13	3.13
741	NASDAQ	CECO	Thu, Jun 20, 1996	3.25	3.25	3.00	3.25
740	NASDAQ	CECO	Wed, Jun 19, 1996	3.00	3.25	3.00	3.00
739	NASDAQ	CECO	Tue, Jun 18, 1996	3.25	3.25	3.25	3.25
738	NASDAQ	CECO	Mon, Jun 17, 1996	3.25	3.25	3.00	3.13
737	NASDAQ	CECO	Fri, Jun 14, 1996	3.25	3.25	3.06	3.25
736	NASDAQ	CECO	Thu, Jun 13, 1996	3.38	3.38	3.25	3.25
735	NASDAQ	CECO	Wed, Jun 12, 1996	3.38	3.38	3.19	3.19
734	NASDAQ	CECO	Tue, Jun 11, 1996	3.31	3.50	3.19	3.19
733	NASDAQ	CECO	Mon, Jun 10, 1996	3.38	3.50	3.25	3.31
732	NASDAQ	CECO	Fri, Jun 7, 1996	3.38	3.38	3.31	3.38
731	NASDAQ	CECO	Thu, Jun 6, 1996	3.38	3.38	3.13	3.34
730	NASDAQ	CECO	Wed, Jun 5, 1996	3.00	3.38	2.88	3.38
729	NASDAQ	CECO	Tue, Jun 4, 1996	2.88	3.00	2.56	3.00
728	NASDAQ	CECO	Mon, Jun 3, 1996	2.50	2.88	2.50	2.81
727	NASDAQ	CECO	Fri, May 31, 1996	2.50	2.88	2.44	2.75
726	NASDAQ	CECO	Thu, May 30, 1996	2.69	2.69	2.50	2.53
725	NASDAQ	CECO	Wed, May 29, 1996	2.88	2.88	2.69	2.69
724	NASDAQ	CECO	Tue, May 28, 1996	2.88	2.88	2.81	2.81
723	NASDAQ	CECO	Fri, May 24, 1996	2.88	2.88	2.56	2.88
722	NASDAQ	CECO	Thu, May 23, 1996	2.88	2.88	2.63	2.88
721	NASDAQ	CECO	Wed, May 22, 1996	2.63	2.88	2.63	2.88
720	NASDAQ	CECO	Tue, May 21, 1996	2.81	2.81	2.63	2.63
719	NASDAQ	CECO	Mon, May 20, 1996	2.75	2.88	2.75	2.75
718	NASDAQ	CECO	Fri, May 17, 1996	2.81	2.88	2.75	2.88
717	NASDAQ	CECO	Tue, May 14, 1996	3.06	3.06	3.00	3.06
716	NASDAQ	CECO	Mon, May 13, 1996	3.06	3.06	2.81	2.81
715	NASDAQ	CECO	Fri, May 10, 1996	3.00	3.06	3.00	3.03
714	NASDAQ	CECO	Wed, May 8, 1996	2.91	2.94	2.88	2.88
713	NASDAQ	CECO	Tue, May 7, 1996	2.88	3.00	2.88	2.94
712	NASDAQ	CECO	Mon, May 6, 1996	2.88	3.00	2.88	3.00
711	NASDAQ	CECO	Fri, May 3, 1996	3.06	3.06	3.00	3.00
710	NASDAQ	CECO	Thu, May 2, 1996	3.13	3.13	3.00	3.13
709	NASDAQ	CECO	Wed, May 1, 1996	3.13	3.13	2.88	3.13
708	NASDAQ	CECO	Tue, Apr 30, 1996	3.00	3.13	2.94	3.13
707	NASDAQ	CECO	Mon, Apr 29, 1996	2.94	3.13	2.88	2.97
706	NASDAQ	CECO	Fri, Apr 26, 1996	3.13	3.13	3.00	3.00
705	NASDAQ	CECO	Thu, Apr 25, 1996	2.97	3.13	2.94	2.97
704	NASDAQ	CECO	Wed, Apr 24, 1996	3.19	3.19	2.94	3.00
703	NASDAQ	CECO	Tue, Apr 23, 1996	3.00	3.19	2.94	3.06
702	NASDAQ	CECO	Mon, Apr 22, 1996	2.88	3.13	2.88	2.88
701	NASDAQ	CECO	Fri, Apr 19, 1996	3.13	3.13	2.88	2.88
700	NASDAQ	CECO	Thu, Apr 18, 1996	2.88	3.13	2.88	3.13
699	NASDAQ	CECO	Wed, Apr 17, 1996	3.19	3.19	2.88	2.88
698	NASDAQ	CECO	Tue, Apr 16, 1996	3.13	3.13	3.00	3.00
697	NASDAQ	CECO	Mon, Apr 15, 1996	2.88	3.13	2.88	2.88
696	NASDAQ	CECO	Fri, Apr 12, 1996	3.13	3.13	3.00	3.13
695	NASDAQ	CECO	Wed, Apr 10, 1996	2.88	3.25	2.88	3.25
694	NASDAQ	CECO	Tue, Apr 9, 1996	3.19	3.25	3.00	3.25
693	NASDAQ	CECO	Mon, Apr 8, 1996	3.00	3.25	2.94	3.03
692	NASDAQ	CECO	Thu, Apr 4, 1996	3.00	3.13	3.00	3.13
691	NASDAQ	CECO	Wed, Apr 3, 1996	3.38	3.38	3.19	3.31
690	NASDAQ	CECO	Tue, Apr 2, 1996	3.00	3.13	3.00	3.13
689	NASDAQ	CECO	Mon, Apr 1, 1996	3.00	3.13	3.00	3.13
688	NASDAQ	CECO	Fri, Mar 29, 1996	3.19	3.38	3.13	3.19
687	NASDAQ	CECO	Thu, Mar 28, 1996	3.38	3.38	3.00	3.06
686	NASDAQ	CECO	Wed, Mar 27, 1996	3.13	3.38	3.06	3.06
685	NASDAQ	CECO	Tue, Mar 26, 1996	3.06	3.44	3.06	3.44
684	NASDAQ	CECO	Mon, Mar 25, 1996	3.31	3.31	3.06	3.06
683	NASDAQ	CECO	Fri, Mar 22, 1996	3.25	3.31	3.00	3.31
682	NASDAQ	CECO	Thu, Mar 21, 1996	3.06	3.44	3.06	3.13
681	NASDAQ	CECO	Wed, Mar 20, 1996	3.25	3.25	3.06	3.25
680	NASDAQ	CECO	Tue, Mar 19, 1996	3.00	3.25	2.88	3.25
679	NASDAQ	CECO	Fri, Mar 15, 1996	2.75	2.75	2.75	2.75
678	NASDAQ	CECO	Thu, Mar 14, 1996	2.75	2.75	2.75	2.75
677	NASDAQ	CECO	Tue, Mar 12, 1996	2.75	3.00	2.75	3.00
676	NASDAQ	CECO	Fri, Mar 8, 1996	2.81	3.06	2.75	2.81
675	NASDAQ	CECO	Thu, Mar 7, 1996	3.00	3.06	2.88	3.06
674	NASDAQ	CECO	Wed, Mar 6, 1996	3.13	3.19	3.00	3.19
673	NASDAQ	CECO	Tue, Mar 5, 1996	3.00	3.13	3.00	3.00
672	NASDAQ	CECO	Mon, Mar 4, 1996	3.25	3.25	2.88	3.00
671	NASDAQ	CECO	Fri, Mar 1, 1996	3.63	3.63	2.63	3.13
670	NASDAQ	CECO	Thu, Feb 29, 1996	3.81	3.81	3.63	3.75
669	NASDAQ	CECO	Wed, Feb 28, 1996	3.88	3.88	3.50	3.75
668	NASDAQ	CECO	Tue, Feb 27, 1996	3.78	3.94	3.75	3.81
667	NASDAQ	CECO	Mon, Feb 26, 1996	3.88	4.00	3.30	3.81
666	NASDAQ	CECO	Fri, Feb 23, 1996	3.84	3.94	3.81	3.88
665	NASDAQ	CECO	Thu, Feb 22, 1996	3.81	3.88	3.81	3.88
664	NASDAQ	CECO	Wed, Feb 21, 1996	3.81	3.81	3.81	3.81
663	NASDAQ	CECO	Tue, Feb 20, 1996	3.81	3.94	3.81	3.94
662	NASDAQ	CECO	Fri, Feb 16, 1996	3.81	3.94	3.81	3.91
661	NASDAQ	CECO	Thu, Feb 15, 1996	3.94	3.94	3.81	3.84
660	NASDAQ	CECO	Wed, Feb 14, 1996	3.81	3.84	3.81	3.81
659	NASDAQ	CECO	Tue, Feb 13, 1996	3.94	3.94	3.81	3.94
658	NASDAQ	CECO	Mon, Feb 12, 1996	3.69	3.94	3.69	3.94
657	NASDAQ	CECO	Fri, Feb 9, 1996	3.63	3.81	3.63	3.75
656	NASDAQ	CECO	Thu, Feb 8, 1996	3.81	3.81	3.63	3.63
655	NASDAQ	CECO	Wed, Feb 7, 1996	3.63	3.81	3.63	3.81
654	NASDAQ	CECO	Tue, Feb 6, 1996	3.81	3.81	3.75	3.75
653	NASDAQ	CECO	Mon, Feb 5, 1996	3.69	3.81	3.69	3.69
652	NASDAQ	CECO	Fri, Feb 2, 1996	3.69	3.69	3.69	3.69
651	NASDAQ	CECO	Wed, Jan 31, 1996	3.75	3.81	3.75	3.81
650	NASDAQ	CECO	Tue, Jan 30, 1996	3.75	3.81	3.75	3.75
649	NASDAQ	CECO	Mon, Jan 29, 1996	3.88	3.88	3.75	3.77
648	NASDAQ	CECO	Fri, Jan 26, 1996	3.75	3.88	3.63	3.63
647	NASDAQ	CECO	Thu, Jan 25, 1996	3.81	3.81	3.75	3.78
646	NASDAQ	CECO	Wed, Jan 24, 1996	3.81	3.81	3.75	3.75
645	NASDAQ	CECO	Tue, Jan 23, 1996	3.81	3.88	3.69	3.78
644	NASDAQ	CECO	Mon, Jan 22, 1996	3.81	3.81	3.69	3.81
643	NASDAQ	CECO	Fri, Jan 19, 1996	3.50	3.78	3.50	3.78
642	NASDAQ	CECO	Thu, Jan 18, 1996	3.38	3.63	3.38	3.63
641	NASDAQ	CECO	Wed, Jan 17, 1996	3.44	3.56	3.38	3.38
640	NASDAQ	CECO	Tue, Jan 16, 1996	3.13	3.59	3.13	3.50
639	NASDAQ	CECO	Mon, Jan 15, 1996	3.16	3.25	3.13	3.14
638	NASDAQ	CECO	Fri, Jan 12, 1996	3.13	3.25	3.13	3.13
637	NASDAQ	CECO	Thu, Jan 11, 1996	3.25	3.25	3.13	3.25
636	NASDAQ	CECO	Wed, Jan 10, 1996	3.25	3.31	3.06	3.19
635	NASDAQ	CECO	Tue, Jan 9, 1996	3.13	3.30	3.13	3.19
634	NASDAQ	CECO	Mon, Jan 8, 1996	3.22	3.22	3.22	3.22
633	NASDAQ	CECO	Fri, Jan 5, 1996	3.09	3.22	3.00	3.06
632	NASDAQ	CECO	Thu, Jan 4, 1996	3.09	3.09	3.00	3.06
631	NASDAQ	CECO	Wed, Jan 3, 1996	3.00	3.09	3.00	3.09
630	NASDAQ	CECO	Tue, Jan 2, 1996	3.09	3.09	3.09	3.09
629	NASDAQ	CECO	Fri, Dec 29, 1995	2.94	3.09	2.94	3.06
628	NASDAQ	CECO	Thu, Dec 28, 1995	2.94	3.09	2.94	3.09
627	NASDAQ	CECO	Wed, Dec 27, 1995	2.94	3.13	2.94	3.03
626	NASDAQ	CECO	Tue, Dec 26, 1995	3.06	3.13	2.94	3.13
625	NASDAQ	CECO	Fri, Dec 22, 1995	3.00	3.13	3.00	3.13
624	NASDAQ	CECO	Thu, Dec 21, 1995	3.13	3.13	3.06	3.06
623	NASDAQ	CECO	Wed, Dec 20, 1995	3.06	3.13	3.00	3.13
622	NASDAQ	CECO	Tue, Dec 19, 1995	3.00	3.00	3.00	3.00
621	NASDAQ	CECO	Mon, Dec 18, 1995	2.94	3.00	2.94	3.00
620	NASDAQ	CECO	Fri, Dec 15, 1995	3.13	3.13	2.94	2.94
619	NASDAQ	CECO	Thu, Dec 14, 1995	3.06	3.13	3.06	3.06
618	NASDAQ	CECO	Wed, Dec 13, 1995	3.25	3.25	3.09	3.13
617	NASDAQ	CECO	Tue, Dec 12, 1995	3.31	3.31	3.25	3.25
616	NASDAQ	CECO	Mon, Dec 11, 1995	3.31	3.38	3.31	3.34
615	NASDAQ	CECO	Fri, Dec 8, 1995	3.25	3.38	3.25	3.38
614	NASDAQ	CECO	Thu, Dec 7, 1995	3.56	3.56	3.25	3.25
613	NASDAQ	CECO	Wed, Dec 6, 1995	3.63	3.63	3.50	3.63
612	NASDAQ	CECO	Tue, Dec 5, 1995	3.81	3.81	3.56	3.69
611	NASDAQ	CECO	Mon, Dec 4, 1995	3.81	3.88	3.75	3.88
610	NASDAQ	CECO	Fri, Dec 1, 1995	3.63	4.00	3.63	3.88
609	NASDAQ	CECO	Thu, Nov 30, 1995	3.75	3.88	3.75	3.88
608	NASDAQ	CECO	Wed, Nov 29, 1995	3.88	3.88	3.75	3.75
607	NASDAQ	CECO	Tue, Nov 28, 1995	3.75	3.78	3.75	3.75
606	NASDAQ	CECO	Mon, Nov 27, 1995	3.94	3.94	3.75	3.75
605	NASDAQ	CECO	Fri, Nov 24, 1995	3.91	3.91	3.75	3.88
604	NASDAQ	CECO	Wed, Nov 22, 1995	3.88	3.94	3.81	3.88
603	NASDAQ	CECO	Tue, Nov 21, 1995	3.94	4.00	3.81	3.81
602	NASDAQ	CECO	Mon, Nov 20, 1995	3.88	4.00	3.75	4.00
601	NASDAQ	CECO	Fri, Nov 17, 1995	4.00	4.00	3.88	3.88
600	NASDAQ	CECO	Thu, Nov 16, 1995	3.88	4.00	3.84	4.00
599	NASDAQ	CECO	Wed, Nov 15, 1995	3.88	3.94	3.38	3.88
598	NASDAQ	CECO	Tue, Nov 14, 1995	4.25	4.25	4.00	4.13
597	NASDAQ	CECO	Mon, Nov 13, 1995	4.28	4.28	4.13	4.25
596	NASDAQ	CECO	Fri, Nov 10, 1995	4.28	4.31	4.25	4.28
595	NASDAQ	CECO	Thu, Nov 9, 1995	4.25	4.31	4.16	4.22
594	NASDAQ	CECO	Wed, Nov 8, 1995	4.31	4.31	4.19	4.25
593	NASDAQ	CECO	Tue, Nov 7, 1995	4.44	4.94	4.25	4.25
592	NASDAQ	CECO	Mon, Nov 6, 1995	4.44	4.44	4.38	4.38
591	NASDAQ	CECO	Fri, Nov 3, 1995	4.38	4.44	4.31	4.31
590	NASDAQ	CECO	Thu, Nov 2, 1995	4.25	4.44	4.25	4.38
589	NASDAQ	CECO	Wed, Nov 1, 1995	4.19	4.31	4.06	4.19
588	NASDAQ	CECO	Tue, Oct 31, 1995	4.22	4.22	4.06	4.13
587	NASDAQ	CECO	Mon, Oct 30, 1995	4.22	4.22	4.13	4.19
586	NASDAQ	CECO	Fri, Oct 27, 1995	4.13	4.22	4.06	4.09
585	NASDAQ	CECO	Thu, Oct 26, 1995	4.13	4.22	4.13	4.19
584	NASDAQ	CECO	Wed, Oct 25, 1995	4.13	4.16	4.06	4.16
583	NASDAQ	CECO	Tue, Oct 24, 1995	4.06	4.19	4.06	4.19
582	NASDAQ	CECO	Mon, Oct 23, 1995	4.09	4.09	4.09	4.09
581	NASDAQ	CECO	Fri, Oct 20, 1995	4.06	4.19	4.06	4.19
580	NASDAQ	CECO	Thu, Oct 19, 1995	4.00	4.06	4.00	4.06
579	NASDAQ	CECO	Wed, Oct 18, 1995	4.06	4.13	4.06	4.13
578	NASDAQ	CECO	Tue, Oct 17, 1995	4.13	4.13	4.06	4.06
577	NASDAQ	CECO	Mon, Oct 16, 1995	4.13	4.13	4.09	4.09
576	NASDAQ	CECO	Fri, Oct 13, 1995	4.22	4.22	4.06	4.06
575	NASDAQ	CECO	Thu, Oct 12, 1995	4.19	4.31	4.06	4.06
574	NASDAQ	CECO	Wed, Oct 11, 1995	4.09	4.25	4.09	4.22
573	NASDAQ	CECO	Tue, Oct 10, 1995	4.25	4.25	4.06	4.13
572	NASDAQ	CECO	Mon, Oct 9, 1995	4.28	4.28	4.09	4.09
571	NASDAQ	CECO	Fri, Oct 6, 1995	4.25	4.38	4.25	4.31
570	NASDAQ	CECO	Thu, Oct 5, 1995	4.31	4.38	4.16	4.25
569	NASDAQ	CECO	Wed, Oct 4, 1995	4.09	4.25	4.09	4.25
568	NASDAQ	CECO	Tue, Oct 3, 1995	4.19	4.31	4.06	4.31
567	NASDAQ	CECO	Mon, Oct 2, 1995	4.19	4.22	4.19	4.19
566	NASDAQ	CECO	Fri, Sep 29, 1995	4.19	4.31	4.19	4.31
565	NASDAQ	CECO	Thu, Sep 28, 1995	4.19	4.31	4.19	4.25
564	NASDAQ	CECO	Wed, Sep 27, 1995	4.13	4.31	4.06	4.25
563	NASDAQ	CECO	Tue, Sep 26, 1995	4.25	4.34	4.13	4.25
562	NASDAQ	CECO	Mon, Sep 25, 1995	4.34	4.34	4.31	4.31
561	NASDAQ	CECO	Fri, Sep 22, 1995	4.34	4.34	4.25	4.34
560	NASDAQ	CECO	Thu, Sep 21, 1995	4.22	4.34	4.19	4.34
559	NASDAQ	CECO	Wed, Sep 20, 1995	4.16	4.22	4.09	4.13
558	NASDAQ	CECO	Tue, Sep 19, 1995	4.13	4.22	3.91	4.09
557	NASDAQ	CECO	Mon, Sep 18, 1995	4.66	4.88	4.13	4.13
556	NASDAQ	CECO	Fri, Sep 15, 1995	4.75	4.75	4.72	4.75
555	NASDAQ	CECO	Thu, Sep 14, 1995	4.75	5.00	4.75	4.94
554	NASDAQ	CECO	Wed, Sep 13, 1995	5.13	5.13	4.88	4.94
553	NASDAQ	CECO	Tue, Sep 12, 1995	5.22	5.22	5.13	5.13
552	NASDAQ	CECO	Mon, Sep 11, 1995	5.16	5.22	5.13	5.19
551	NASDAQ	CECO	Fri, Sep 8, 1995	5.19	5.19	5.13	5.16
550	NASDAQ	CECO	Thu, Sep 7, 1995	5.25	5.25	5.13	5.16
549	NASDAQ	CECO	Wed, Sep 6, 1995	5.03	5.22	5.00	5.22
548	NASDAQ	CECO	Tue, Sep 5, 1995	5.13	5.16	5.09	5.09
547	NASDAQ	CECO	Fri, Sep 1, 1995	5.06	5.19	5.03	5.06
546	NASDAQ	CECO	Thu, Aug 31, 1995	4.94	5.19	4.94	5.03
545	NASDAQ	CECO	Wed, Aug 30, 1995	5.31	5.31	4.88	4.91
544	NASDAQ	CECO	Tue, Aug 29, 1995	5.31	5.38	5.00	5.38
543	NASDAQ	CECO	Mon, Aug 28, 1995	5.38	5.38	5.31	5.31
542	NASDAQ	CECO	Fri, Aug 25, 1995	5.56	5.56	5.31	5.38
541	NASDAQ	CECO	Thu, Aug 24, 1995	5.66	5.66	5.56	5.63
540	NASDAQ	CECO	Wed, Aug 23, 1995	5.56	5.56	5.56	5.56
539	NASDAQ	CECO	Tue, Aug 22, 1995	5.56	5.66	5.50	5.56
538	NASDAQ	CECO	Mon, Aug 21, 1995	5.53	5.56	5.44	5.50
537	NASDAQ	CECO	Fri, Aug 18, 1995	5.47	5.53	5.44	5.53
536	NASDAQ	CECO	Thu, Aug 17, 1995	5.56	5.56	5.31	5.44
535	NASDAQ	CECO	Wed, Aug 16, 1995	5.56	5.63	5.44	5.53
534	NASDAQ	CECO	Tue, Aug 15, 1995	5.41	5.44	5.31	5.44
533	NASDAQ	CECO	Mon, Aug 14, 1995	5.50	5.56	5.28	5.38
532	NASDAQ	CECO	Fri, Aug 11, 1995	5.31	5.56	5.31	5.53
531	NASDAQ	CECO	Thu, Aug 10, 1995	5.00	5.38	4.91	5.31
530	NASDAQ	CECO	Wed, Aug 9, 1995	4.97	5.00	4.94	5.00
529	NASDAQ	CECO	Tue, Aug 8, 1995	4.97	4.97	4.81	4.88
528	NASDAQ	CECO	Mon, Aug 7, 1995	4.97	4.97	4.81	4.81
527	NASDAQ	CECO	Fri, Aug 4, 1995	4.88	4.97	4.81	4.84
526	NASDAQ	CECO	Thu, Aug 3, 1995	4.81	4.97	4.81	4.88
525	NASDAQ	CECO	Wed, Aug 2, 1995	4.94	5.00	4.75	4.88
524	NASDAQ	CECO	Tue, Aug 1, 1995	4.94	5.00	4.84	4.88
523	NASDAQ	CECO	Mon, Jul 31, 1995	4.50	4.63	4.47	4.63
522	NASDAQ	CECO	Fri, Jul 28, 1995	4.50	4.50	4.47	4.47
521	NASDAQ	CECO	Thu, Jul 27, 1995	4.47	4.50	4.47	4.47
520	NASDAQ	CECO	Wed, Jul 26, 1995	4.50	4.50	4.50	4.50
519	NASDAQ	CECO	Tue, Jul 25, 1995	4.50	4.50	4.44	4.50
518	NASDAQ	CECO	Mon, Jul 24, 1995	4.44	4.50	4.44	4.44
517	NASDAQ	CECO	Fri, Jul 21, 1995	4.50	4.50	4.44	4.47
516	NASDAQ	CECO	Thu, Jul 20, 1995	4.50	4.50	4.44	4.44
515	NASDAQ	CECO	Wed, Jul 19, 1995	4.50	4.50	4.44	4.44
514	NASDAQ	CECO	Tue, Jul 18, 1995	4.44	4.50	4.44	4.44
513	NASDAQ	CECO	Mon, Jul 17, 1995	4.47	4.50	4.44	4.50
512	NASDAQ	CECO	Fri, Jul 14, 1995	4.50	4.50	4.44	4.44
511	NASDAQ	CECO	Thu, Jul 13, 1995	4.50	4.50	4.25	4.50
510	NASDAQ	CECO	Wed, Jul 12, 1995	4.47	4.50	4.44	4.44
509	NASDAQ	CECO	Tue, Jul 11, 1995	4.38	4.47	4.38	4.44
508	NASDAQ	CECO	Mon, Jul 10, 1995	4.47	4.47	4.34	4.44
507	NASDAQ	CECO	Fri, Jul 7, 1995	4.47	4.47	4.38	4.38
506	NASDAQ	CECO	Thu, Jul 6, 1995	4.44	4.47	4.44	4.44
505	NASDAQ	CECO	Wed, Jul 5, 1995	4.44	4.47	4.41	4.44
504	NASDAQ	CECO	Fri, Jun 30, 1995	4.38	4.47	4.38	4.44
503	NASDAQ	CECO	Thu, Jun 29, 1995	4.44	4.44	4.31	4.44
502	NASDAQ	CECO	Wed, Jun 28, 1995	4.34	4.44	4.31	4.38
501	NASDAQ	CECO	Tue, Jun 27, 1995	4.25	4.50	4.25	4.34
500	NASDAQ	CECO	Mon, Jun 26, 1995	4.50	4.50	4.25	4.50
499	NASDAQ	CECO	Fri, Jun 23, 1995	4.50	4.50	4.31	4.50
498	NASDAQ	CECO	Thu, Jun 22, 1995	4.44	4.50	4.31	4.50
497	NASDAQ	CECO	Wed, Jun 21, 1995	4.31	4.44	4.25	4.31
496	NASDAQ	CECO	Tue, Jun 20, 1995	4.44	4.50	4.31	4.31
495	NASDAQ	CECO	Mon, Jun 19, 1995	4.31	4.69	4.31	4.50
494	NASDAQ	CECO	Fri, Jun 16, 1995	4.25	4.44	4.13	4.44
493	NASDAQ	CECO	Thu, Jun 15, 1995	4.19	4.25	4.00	4.19
492	NASDAQ	CECO	Wed, Jun 14, 1995	4.09	4.25	4.06	4.06
491	NASDAQ	CECO	Tue, Jun 13, 1995	3.91	4.13	3.73	4.09
490	NASDAQ	CECO	Mon, Jun 12, 1995	3.84	3.91	3.84	3.91
489	NASDAQ	CECO	Fri, Jun 9, 1995	3.84	3.84	3.81	3.81
488	NASDAQ	CECO	Thu, Jun 8, 1995	3.84	3.84	3.81	3.83
487	NASDAQ	CECO	Wed, Jun 7, 1995	3.81	3.84	3.81	3.83
486	NASDAQ	CECO	Tue, Jun 6, 1995	3.78	3.81	3.78	3.78
485	NASDAQ	CECO	Mon, Jun 5, 1995	3.84	3.84	3.78	3.81
484	NASDAQ	CECO	Fri, Jun 2, 1995	3.78	3.84	3.75	3.78
483	NASDAQ	CECO	Thu, Jun 1, 1995	3.75	3.78	3.75	3.78
482	NASDAQ	CECO	Wed, May 31, 1995	3.81	3.81	3.75	3.75
481	NASDAQ	CECO	Tue, May 30, 1995	3.75	3.81	3.69	3.81
480	NASDAQ	CECO	Fri, May 26, 1995	3.75	3.81	3.69	3.72
479	NASDAQ	CECO	Thu, May 25, 1995	3.84	3.84	3.75	3.75
478	NASDAQ	CECO	Wed, May 24, 1995	3.84	3.84	3.81	3.81
477	NASDAQ	CECO	Tue, May 23, 1995	3.84	3.84	3.84	3.84
476	NASDAQ	CECO	Mon, May 22, 1995	3.88	3.88	3.88	3.88
475	NASDAQ	CECO	Fri, May 19, 1995	3.81	3.84	3.75	3.84
474	NASDAQ	CECO	Thu, May 18, 1995	3.84	3.84	3.78	3.81
473	NASDAQ	CECO	Wed, May 17, 1995	3.75	3.88	3.75	3.88
472	NASDAQ	CECO	Tue, May 16, 1995	3.81	3.81	3.69	3.75
471	NASDAQ	CECO	Mon, May 15, 1995	3.63	3.69	3.63	3.69
470	NASDAQ	CECO	Fri, May 12, 1995	3.63	3.63	3.63	3.63
469	NASDAQ	CECO	Thu, May 11, 1995	3.63	3.66	3.56	3.66
468	NASDAQ	CECO	Wed, May 10, 1995	3.63	3.69	3.63	3.63
467	NASDAQ	CECO	Tue, May 9, 1995	3.63	3.75	3.50	3.63
466	NASDAQ	CECO	Mon, May 8, 1995	3.75	3.75	3.63	3.63
465	NASDAQ	CECO	Fri, May 5, 1995	3.63	3.75	3.56	3.75
464	NASDAQ	CECO	Thu, May 4, 1995	3.44	3.69	3.44	3.69
463	NASDAQ	CECO	Wed, May 3, 1995	3.38	3.38	3.38	3.38
462	NASDAQ	CECO	Tue, May 2, 1995	3.31	3.50	3.31	3.50
461	NASDAQ	CECO	Mon, May 1, 1995	3.44	3.63	3.13	3.38
460	NASDAQ	CECO	Fri, Apr 28, 1995	3.00	3.44	2.63	3.38
459	NASDAQ	CECO	Thu, Apr 27, 1995	2.97	3.09	2.97	3.03
458	NASDAQ	CECO	Wed, Apr 26, 1995	2.81	3.06	2.81	3.06
457	NASDAQ	CECO	Tue, Apr 25, 1995	2.75	3.00	2.63	2.88
456	NASDAQ	CECO	Mon, Apr 24, 1995	2.63	2.75	2.63	2.69
455	NASDAQ	CECO	Fri, Apr 21, 1995	2.84	2.84	2.63	2.63
454	NASDAQ	CECO	Thu, Apr 20, 1995	2.50	2.84	2.38	2.84
453	NASDAQ	CECO	Wed, Apr 19, 1995	2.50	2.50	2.31	2.50
452	NASDAQ	CECO	Tue, Apr 18, 1995	2.31	2.31	2.31	2.31
451	NASDAQ	CECO	Mon, Apr 17, 1995	2.25	2.25	2.25	2.25
450	NASDAQ	CECO	Thu, Apr 13, 1995	2.19	2.38	2.13	2.38
449	NASDAQ	CECO	Wed, Apr 12, 1995	2.19	2.19	2.13	2.13
448	NASDAQ	CECO	Tue, Apr 11, 1995	2.13	2.13	2.13	2.13
447	NASDAQ	CECO	Mon, Apr 10, 1995	2.13	2.13	2.13	2.13
446	NASDAQ	CECO	Fri, Apr 7, 1995	2.13	2.31	2.13	2.31
445	NASDAQ	CECO	Thu, Apr 6, 1995	2.25	2.25	2.13	2.13
444	NASDAQ	CECO	Wed, Apr 5, 1995	2.25	2.25	2.25	2.25
443	NASDAQ	CECO	Tue, Apr 4, 1995	2.25	2.25	2.25	2.25
442	NASDAQ	CECO	Mon, Apr 3, 1995	2.38	2.38	2.25	2.25
441	NASDAQ	CECO	Fri, Mar 31, 1995	2.38	2.50	2.38	2.38
440	NASDAQ	CECO	Thu, Mar 30, 1995	2.63	2.63	2.44	2.44
439	NASDAQ	CECO	Wed, Mar 29, 1995	2.50	2.50	2.50	2.50
438	NASDAQ	CECO	Tue, Mar 28, 1995	2.50	2.50	2.50	2.50
437	NASDAQ	CECO	Mon, Mar 27, 1995	2.50	2.50	2.44	2.50
436	NASDAQ	CECO	Fri, Mar 24, 1995	2.44	2.50	2.36	2.50
435	NASDAQ	CECO	Thu, Mar 23, 1995	2.50	2.50	2.44	2.44
434	NASDAQ	CECO	Wed, Mar 22, 1995	2.50	2.50	2.44	2.50
433	NASDAQ	CECO	Tue, Mar 21, 1995	2.50	2.50	2.38	2.38
432	NASDAQ	CECO	Thu, Mar 16, 1995	2.38	2.38	2.25	2.25
431	NASDAQ	CECO	Wed, Mar 15, 1995	2.25	2.25	2.25	2.25
430	NASDAQ	CECO	Tue, Mar 14, 1995	2.25	2.25	2.25	2.25
429	NASDAQ	CECO	Fri, Mar 10, 1995	2.50	2.50	2.25	2.25
428	NASDAQ	CECO	Thu, Mar 9, 1995	2.44	2.50	2.44	2.47
427	NASDAQ	CECO	Wed, Mar 8, 1995	2.41	2.41	2.41	2.41
426	NASDAQ	CECO	Tue, Mar 7, 1995	2.47	2.47	2.47	2.47
425	NASDAQ	CECO	Mon, Mar 6, 1995	2.44	2.47	2.44	2.44
424	NASDAQ	CECO	Fri, Mar 3, 1995	2.44	2.47	2.44	2.44
423	NASDAQ	CECO	Wed, Mar 1, 1995	2.47	2.47	2.47	2.47
422	NASDAQ	CECO	Tue, Feb 28, 1995	2.44	2.44	2.44	2.44
421	NASDAQ	CECO	Mon, Feb 27, 1995	2.25	2.50	2.25	2.44
420	NASDAQ	CECO	Fri, Feb 24, 1995	2.38	2.47	2.31	2.44
419	NASDAQ	CECO	Thu, Feb 23, 1995	2.25	2.25	2.25	2.25
418	NASDAQ	CECO	Wed, Feb 22, 1995	2.38	2.38	2.25	2.31
417	NASDAQ	CECO	Tue, Feb 21, 1995	2.34	2.34	2.34	2.34
416	NASDAQ	CECO	Fri, Feb 17, 1995	2.19	2.19	2.19	2.19
415	NASDAQ	CECO	Thu, Feb 16, 1995	2.31	2.31	2.19	2.19
414	NASDAQ	CECO	Wed, Feb 15, 1995	2.34	2.38	2.28	2.38
413	NASDAQ	CECO	Tue, Feb 14, 1995	2.19	2.34	2.19	2.19
412	NASDAQ	CECO	Fri, Feb 10, 1995	2.34	2.34	2.34	2.34
411	NASDAQ	CECO	Thu, Feb 9, 1995	2.34	2.34	2.19	2.34
410	NASDAQ	CECO	Wed, Feb 8, 1995	2.31	2.31	2.31	2.31
409	NASDAQ	CECO	Mon, Feb 6, 1995	2.13	2.31	2.13	2.31
408	NASDAQ	CECO	Thu, Feb 2, 1995	2.19	2.19	2.13	2.13
407	NASDAQ	CECO	Wed, Feb 1, 1995	2.19	2.25	2.19	2.19
406	NASDAQ	CECO	Tue, Jan 31, 1995	2.19	2.19	2.19	2.19
405	NASDAQ	CECO	Mon, Jan 30, 1995	2.19	2.19	2.19	2.19
404	NASDAQ	CECO	Fri, Jan 27, 1995	2.25	2.25	2.25	2.25
403	NASDAQ	CECO	Thu, Jan 26, 1995	2.25	2.31	2.25	2.25
402	NASDAQ	CECO	Tue, Jan 24, 1995	2.25	2.25	2.25	2.25
401	NASDAQ	CECO	Mon, Jan 23, 1995	2.25	2.25	2.25	2.25
400	NASDAQ	CECO	Fri, Jan 20, 1995	2.31	2.44	2.13	2.44
399	NASDAQ	CECO	Wed, Jan 18, 1995	2.50	2.50	2.44	2.44
398	NASDAQ	CECO	Tue, Jan 17, 1995	2.31	2.31	2.31	2.31
397	NASDAQ	CECO	Mon, Jan 16, 1995	2.47	2.47	2.38	2.44
396	NASDAQ	CECO	Fri, Jan 13, 1995	2.34	2.34	2.34	2.34
395	NASDAQ	CECO	Thu, Jan 12, 1995	2.19	2.38	2.19	2.19
394	NASDAQ	CECO	Wed, Jan 11, 1995	2.25	2.38	2.22	2.38
393	NASDAQ	CECO	Tue, Jan 10, 1995	2.13	2.13	2.13	2.13
392	NASDAQ	CECO	Thu, Jan 5, 1995	2.13	2.25	2.13	2.25
391	NASDAQ	CECO	Wed, Jan 4, 1995	2.00	2.38	2.00	2.25
390	NASDAQ	CECO	Tue, Jan 3, 1995	1.97	1.97	1.97	1.97
389	NASDAQ	CECO	Fri, Dec 30, 1994	2.06	2.06	1.88	1.88
388	NASDAQ	CECO	Thu, Dec 29, 1994	2.19	2.19	2.13	2.13
387	NASDAQ	CECO	Wed, Dec 28, 1994	2.19	2.19	2.19	2.19
386	NASDAQ	CECO	Fri, Dec 23, 1994	2.38	2.38	2.38	2.38
385	NASDAQ	CECO	Thu, Dec 22, 1994	2.44	2.45	2.25	2.45
384	NASDAQ	CECO	Wed, Dec 21, 1994	2.50	2.50	2.50	2.50
383	NASDAQ	CECO	Tue, Dec 20, 1994	2.44	2.50	2.44	2.44
382	NASDAQ	CECO	Mon, Dec 19, 1994	2.44	2.44	2.44	2.44
381	NASDAQ	CECO	Fri, Dec 16, 1994	2.50	3.00	2.50	3.00
380	NASDAQ	CECO	Thu, Dec 15, 1994	2.50	2.50	2.38	2.50
379	NASDAQ	CECO	Wed, Dec 14, 1994	2.38	2.50	2.38	2.50
378	NASDAQ	CECO	Tue, Dec 13, 1994	2.44	2.50	2.44	2.50
377	NASDAQ	CECO	Mon, Dec 12, 1994	2.50	2.50	2.50	2.50
376	NASDAQ	CECO	Fri, Dec 9, 1994	2.38	2.50	2.38	2.50
375	NASDAQ	CECO	Thu, Dec 8, 1994	2.63	2.69	2.38	2.38
374	NASDAQ	CECO	Wed, Dec 7, 1994	2.63	2.63	2.63	2.63
373	NASDAQ	CECO	Tue, Dec 6, 1994	2.97	3.00	2.97	3.00
372	NASDAQ	CECO	Wed, Nov 30, 1994	2.75	2.75	2.69	2.69
371	NASDAQ	CECO	Tue, Nov 29, 1994	2.63	2.63	2.63	2.63
370	NASDAQ	CECO	Mon, Nov 28, 1994	2.63	2.63	2.63	2.63
369	NASDAQ	CECO	Fri, Nov 25, 1994	2.75	2.75	2.75	2.75
368	NASDAQ	CECO	Mon, Nov 21, 1994	2.75	2.75	2.75	2.75
367	NASDAQ	CECO	Fri, Nov 18, 1994	2.75	2.75	2.75	2.75
366	NASDAQ	CECO	Thu, Nov 17, 1994	2.75	3.00	2.75	2.75
365	NASDAQ	CECO	Wed, Nov 16, 1994	3.00	3.00	2.75	2.75
364	NASDAQ	CECO	Tue, Nov 15, 1994	2.88	3.00	2.88	3.00
363	NASDAQ	CECO	Thu, Nov 10, 1994	2.69	2.88	2.69	2.88
362	NASDAQ	CECO	Wed, Nov 9, 1994	2.63	2.63	2.63	2.63
361	NASDAQ	CECO	Tue, Nov 8, 1994	2.63	2.63	2.63	2.63
360	NASDAQ	CECO	Wed, Nov 2, 1994	2.63	2.63	2.63	2.63
359	NASDAQ	CECO	Tue, Nov 1, 1994	2.88	2.88	2.69	2.88
358	NASDAQ	CECO	Mon, Oct 31, 1994	2.69	2.88	2.69	2.88
357	NASDAQ	CECO	Fri, Oct 28, 1994	2.63	2.69	2.63	2.69
356	NASDAQ	CECO	Wed, Oct 26, 1994	2.56	2.56	2.56	2.56
355	NASDAQ	CECO	Tue, Oct 25, 1994	2.56	2.56	2.56	2.56
354	NASDAQ	CECO	Mon, Oct 24, 1994	2.56	2.56	2.56	2.56
353	NASDAQ	CECO	Fri, Oct 21, 1994	2.50	2.50	2.50	2.50
352	NASDAQ	CECO	Thu, Oct 20, 1994	2.56	2.56	2.56	2.56
351	NASDAQ	CECO	Tue, Oct 18, 1994	2.63	2.63	2.63	2.63
350	NASDAQ	CECO	Mon, Oct 17, 1994	2.50	2.63	2.50	2.63
349	NASDAQ	CECO	Fri, Oct 14, 1994	2.88	2.88	2.38	2.88
348	NASDAQ	CECO	Thu, Oct 13, 1994	2.25	2.56	2.25	2.56
347	NASDAQ	CECO	Tue, Oct 11, 1994	2.16	2.44	2.16	2.44
346	NASDAQ	CECO	Mon, Oct 10, 1994	2.00	2.13	2.00	2.13
345	NASDAQ	CECO	Thu, Oct 6, 1994	2.00	2.25	2.00	2.25
344	NASDAQ	CECO	Wed, Oct 5, 1994	2.25	2.50	2.06	2.38
343	NASDAQ	CECO	Tue, Oct 4, 1994	2.25	2.25	2.25	2.25
342	NASDAQ	CECO	Mon, Oct 3, 1994	2.31	2.31	2.31	2.31
341	NASDAQ	CECO	Fri, Sep 30, 1994	2.31	2.31	2.31	2.31
340	NASDAQ	CECO	Thu, Sep 29, 1994	2.38	2.38	2.31	2.31
339	NASDAQ	CECO	Wed, Sep 28, 1994	2.31	2.31	2.31	2.31
338	NASDAQ	CECO	Mon, Sep 26, 1994	2.31	2.31	2.31	2.31
337	NASDAQ	CECO	Fri, Sep 23, 1994	2.84	2.84	2.31	2.31
336	NASDAQ	CECO	Thu, Sep 22, 1994	2.31	2.31	2.31	2.31
335	NASDAQ	CECO	Wed, Sep 21, 1994	2.84	2.84	2.31	2.31
334	NASDAQ	CECO	Fri, Sep 16, 1994	2.31	2.31	2.31	2.31
333	NASDAQ	CECO	Wed, Sep 14, 1994	2.38	2.38	2.38	2.38
332	NASDAQ	CECO	Tue, Sep 13, 1994	2.38	2.38	2.38	2.38
331	NASDAQ	CECO	Mon, Sep 12, 1994	2.38	2.38	2.38	2.38
330	NASDAQ	CECO	Fri, Sep 9, 1994	2.50	2.50	2.50	2.50
329	NASDAQ	CECO	Thu, Sep 8, 1994	2.50	2.50	2.31	2.50
328	NASDAQ	CECO	Fri, Sep 2, 1994	2.25	2.38	2.13	2.38
327	NASDAQ	CECO	Thu, Sep 1, 1994	2.00	2.38	2.00	2.25
326	NASDAQ	CECO	Wed, Aug 31, 1994	2.13	2.13	2.13	2.13
325	NASDAQ	CECO	Tue, Aug 30, 1994	2.25	2.38	2.25	2.38
324	NASDAQ	CECO	Fri, Aug 26, 1994	2.38	2.38	2.13	2.13
323	NASDAQ	CECO	Thu, Aug 25, 1994	2.13	2.38	2.09	2.38
322	NASDAQ	CECO	Wed, Aug 24, 1994	2.25	2.50	2.25	2.50
321	NASDAQ	CECO	Mon, Aug 22, 1994	2.38	2.38	2.38	2.38
320	NASDAQ	CECO	Fri, Aug 19, 1994	2.25	2.63	2.25	2.63
319	NASDAQ	CECO	Thu, Aug 18, 1994	2.50	2.63	2.50	2.63
318	NASDAQ	CECO	Wed, Aug 17, 1994	2.38	2.63	2.25	2.63
317	NASDAQ	CECO	Mon, Aug 15, 1994	2.81	2.81	2.81	2.81
316	NASDAQ	CECO	Fri, Aug 12, 1994	2.50	2.81	2.38	2.81
315	NASDAQ	CECO	Thu, Aug 11, 1994	2.81	2.81	2.38	2.81
314	NASDAQ	CECO	Wed, Aug 10, 1994	2.81	2.81	2.81	2.81
313	NASDAQ	CECO	Tue, Aug 9, 1994	2.75	2.81	2.25	2.63
312	NASDAQ	CECO	Mon, Aug 8, 1994	2.88	2.88	2.81	2.81
311	NASDAQ	CECO	Fri, Aug 5, 1994	2.81	3.03	2.81	3.03
310	NASDAQ	CECO	Thu, Aug 4, 1994	3.09	3.09	3.00	3.00
309	NASDAQ	CECO	Wed, Aug 3, 1994	2.81	2.81	2.81	2.81
308	NASDAQ	CECO	Tue, Aug 2, 1994	3.00	3.09	2.88	3.09
307	NASDAQ	CECO	Mon, Aug 1, 1994	2.75	2.75	2.75	2.75
306	NASDAQ	CECO	Fri, Jul 29, 1994	2.50	2.88	2.50	2.75
305	NASDAQ	CECO	Thu, Jul 28, 1994	2.75	2.75	2.75	2.75
304	NASDAQ	CECO	Tue, Jul 26, 1994	2.50	2.50	2.50	2.50
303	NASDAQ	CECO	Fri, Jul 22, 1994	2.75	2.75	2.50	2.75
302	NASDAQ	CECO	Mon, Jul 18, 1994	2.63	2.75	2.50	2.75
301	NASDAQ	CECO	Thu, Jul 14, 1994	2.63	2.63	2.63	2.63
300	NASDAQ	CECO	Wed, Jul 13, 1994	2.09	2.25	2.09	2.25
299	NASDAQ	CECO	Tue, Jul 12, 1994	2.00	2.13	2.00	2.13
298	NASDAQ	CECO	Mon, Jul 11, 1994	2.00	2.13	2.00	2.00
297	NASDAQ	CECO	Fri, Jul 8, 1994	2.00	2.63	1.94	2.63
296	NASDAQ	CECO	Thu, Jul 7, 1994	2.00	2.63	2.00	2.00
295	NASDAQ	CECO	Wed, Jul 6, 1994	2.00	2.06	2.00	2.06
294	NASDAQ	CECO	Thu, Jun 30, 1994	2.00	2.63	2.00	2.63
293	NASDAQ	CECO	Wed, Jun 29, 1994	2.25	2.63	2.00	2.63
292	NASDAQ	CECO	Tue, Jun 28, 1994	2.25	2.75	2.25	2.75
291	NASDAQ	CECO	Fri, Jun 24, 1994	2.75	2.75	2.38	2.38
290	NASDAQ	CECO	Thu, Jun 23, 1994	2.75	2.84	2.75	2.75
289	NASDAQ	CECO	Wed, Jun 22, 1994	2.75	2.75	2.75	2.75
288	NASDAQ	CECO	Tue, Jun 21, 1994	3.13	3.13	2.75	3.13
287	NASDAQ	CECO	Mon, Jun 20, 1994	2.88	2.94	2.75	2.75
286	NASDAQ	CECO	Fri, Jun 17, 1994	3.38	3.38	2.88	2.88
285	NASDAQ	CECO	Thu, Jun 16, 1994	2.88	2.88	2.88	2.88
284	NASDAQ	CECO	Tue, Jun 14, 1994	3.38	3.38	2.88	2.88
283	NASDAQ	CECO	Mon, Jun 13, 1994	3.00	3.25	2.88	3.25
282	NASDAQ	CECO	Fri, Jun 10, 1994	2.88	3.38	2.88	3.38
281	NASDAQ	CECO	Thu, Jun 9, 1994	3.25	3.38	3.00	3.31
280	NASDAQ	CECO	Wed, Jun 8, 1994	3.00	3.06	2.94	3.06
279	NASDAQ	CECO	Tue, Jun 7, 1994	2.75	2.81	2.75	2.81
278	NASDAQ	CECO	Mon, Jun 6, 1994	3.00	3.13	3.00	3.13
277	NASDAQ	CECO	Fri, Jun 3, 1994	2.75	3.13	2.75	3.13
276	NASDAQ	CECO	Thu, Jun 2, 1994	2.88	3.06	2.75	2.81
275	NASDAQ	CECO	Wed, Jun 1, 1994	2.63	2.75	2.50	2.69
274	NASDAQ	CECO	Fri, May 27, 1994	2.63	2.75	2.56	2.75
273	NASDAQ	CECO	Thu, May 26, 1994	2.44	2.63	2.31	2.63
272	NASDAQ	CECO	Wed, May 25, 1994	2.19	2.44	2.19	2.38
271	NASDAQ	CECO	Tue, May 24, 1994	2.38	2.50	2.06	2.22
270	NASDAQ	CECO	Mon, May 23, 1994	2.00	2.13	2.00	2.13
269	NASDAQ	CECO	Fri, May 20, 1994	2.25	2.44	2.00	2.38
268	NASDAQ	CECO	Thu, May 19, 1994	2.50	2.50	2.31	2.44
267	NASDAQ	CECO	Wed, May 18, 1994	2.88	2.88	2.25	2.38
266	NASDAQ	CECO	Tue, May 17, 1994	2.50	2.88	2.50	2.88
265	NASDAQ	CECO	Mon, May 16, 1994	2.88	2.88	2.75	2.88
264	NASDAQ	CECO	Fri, May 13, 1994	2.88	3.13	2.88	2.88
263	NASDAQ	CECO	Thu, May 12, 1994	2.75	3.13	2.75	3.13
262	NASDAQ	CECO	Wed, May 11, 1994	3.13	3.13	3.13	3.13
261	NASDAQ	CECO	Tue, May 10, 1994	3.13	3.13	2.75	3.13
260	NASDAQ	CECO	Fri, May 6, 1994	2.88	3.13	2.88	3.13
259	NASDAQ	CECO	Thu, May 5, 1994	2.75	3.00	2.75	3.00
258	NASDAQ	CECO	Wed, May 4, 1994	2.75	3.13	2.75	3.13
257	NASDAQ	CECO	Tue, May 3, 1994	3.00	3.00	3.00	3.00
256	NASDAQ	CECO	Fri, Apr 29, 1994	3.00	3.13	3.00	3.00
255	NASDAQ	CECO	Thu, Apr 28, 1994	3.00	3.00	3.00	3.00
254	NASDAQ	CECO	Tue, Apr 26, 1994	3.00	3.00	3.00	3.00
253	NASDAQ	CECO	Mon, Apr 25, 1994	3.13	3.25	2.88	3.03
252	NASDAQ	CECO	Fri, Apr 22, 1994	3.00	3.00	2.88	2.88
251	NASDAQ	CECO	Thu, Apr 21, 1994	3.13	3.13	2.88	2.88
250	NASDAQ	CECO	Wed, Apr 20, 1994	2.75	2.81	2.75	2.81
249	NASDAQ	CECO	Tue, Apr 19, 1994	2.75	2.94	2.63	2.94
248	NASDAQ	CECO	Mon, Apr 18, 1994	3.50	3.50	2.88	3.00
247	NASDAQ	CECO	Fri, Apr 15, 1994	3.13	3.13	3.13	3.13
246	NASDAQ	CECO	Thu, Apr 14, 1994	3.13	3.50	3.13	3.38
245	NASDAQ	CECO	Wed, Apr 13, 1994	3.25	3.44	3.25	3.44
244	NASDAQ	CECO	Tue, Apr 12, 1994	3.06	3.50	3.00	3.38
243	NASDAQ	CECO	Mon, Apr 11, 1994	3.50	3.50	3.00	3.19
242	NASDAQ	CECO	Fri, Apr 8, 1994	3.00	3.31	3.00	3.13
241	NASDAQ	CECO	Wed, Apr 6, 1994	3.50	3.50	3.50	3.50
240	NASDAQ	CECO	Tue, Apr 5, 1994	3.13	3.50	3.00	3.50
239	NASDAQ	CECO	Mon, Apr 4, 1994	3.13	3.50	2.75	3.50
238	NASDAQ	CECO	Thu, Mar 31, 1994	3.25	3.75	3.25	3.25
237	NASDAQ	CECO	Wed, Mar 30, 1994	3.25	3.25	3.25	3.25
236	NASDAQ	CECO	Tue, Mar 29, 1994	3.25	3.75	3.25	3.75
235	NASDAQ	CECO	Mon, Mar 28, 1994	3.25	3.75	3.25	3.75
234	NASDAQ	CECO	Fri, Mar 25, 1994	3.75	3.75	3.75	3.75
233	NASDAQ	CECO	Thu, Mar 24, 1994	3.25	3.75	3.25	3.75
232	NASDAQ	CECO	Wed, Mar 23, 1994	3.63	3.63	3.25	3.50
231	NASDAQ	CECO	Tue, Mar 22, 1994	3.50	3.63	3.50	3.63
230	NASDAQ	CECO	Mon, Mar 21, 1994	3.38	3.38	3.38	3.38
229	NASDAQ	CECO	Fri, Mar 18, 1994	3.38	3.38	3.38	3.38
228	NASDAQ	CECO	Thu, Mar 17, 1994	3.38	3.38	3.38	3.38
227	NASDAQ	CECO	Wed, Mar 16, 1994	3.38	3.38	3.38	3.38
226	NASDAQ	CECO	Tue, Mar 15, 1994	3.44	3.44	3.44	3.44
225	NASDAQ	CECO	Mon, Mar 14, 1994	3.75	3.88	3.38	3.75
224	NASDAQ	CECO	Fri, Mar 11, 1994	3.50	3.50	3.38	3.38
223	NASDAQ	CECO	Thu, Mar 10, 1994	3.38	3.88	3.38	3.88
222	NASDAQ	CECO	Wed, Mar 9, 1994	3.88	3.88	3.38	3.38
221	NASDAQ	CECO	Mon, Mar 7, 1994	3.63	3.63	3.63	3.63
220	NASDAQ	CECO	Fri, Mar 4, 1994	3.38	3.88	3.25	3.88
219	NASDAQ	CECO	Thu, Mar 3, 1994	3.63	3.88	3.50	3.50
218	NASDAQ	CECO	Wed, Mar 2, 1994	3.25	3.63	3.13	3.63
217	NASDAQ	CECO	Tue, Mar 1, 1994	3.13	3.13	3.13	3.13
216	NASDAQ	CECO	Mon, Feb 28, 1994	3.13	3.13	3.00	3.00
215	NASDAQ	CECO	Fri, Feb 25, 1994	3.00	3.25	3.00	3.25
214	NASDAQ	CECO	Thu, Feb 24, 1994	3.38	3.38	2.94	3.19
213	NASDAQ	CECO	Wed, Feb 23, 1994	2.88	3.38	2.88	3.00
212	NASDAQ	CECO	Tue, Feb 22, 1994	2.88	2.88	2.88	2.88
211	NASDAQ	CECO	Fri, Feb 18, 1994	2.94	3.13	2.88	3.00
210	NASDAQ	CECO	Wed, Feb 16, 1994	3.13	3.13	2.94	3.13
209	NASDAQ	CECO	Tue, Feb 15, 1994	3.00	3.31	2.88	3.31
208	NASDAQ	CECO	Mon, Feb 14, 1994	3.13	3.13	2.94	3.13
207	NASDAQ	CECO	Fri, Feb 11, 1994	3.00	3.13	3.00	3.00
206	NASDAQ	CECO	Thu, Feb 10, 1994	3.00	3.13	3.00	3.00
205	NASDAQ	CECO	Wed, Feb 9, 1994	3.00	3.38	3.00	3.00
204	NASDAQ	CECO	Tue, Feb 8, 1994	3.00	3.00	3.00	3.00
203	NASDAQ	CECO	Mon, Feb 7, 1994	3.00	3.00	3.00	3.00
202	NASDAQ	CECO	Fri, Feb 4, 1994	3.00	3.50	3.00	3.50
201	NASDAQ	CECO	Thu, Feb 3, 1994	4.00	4.00	2.97	3.00
200	NASDAQ	CECO	Wed, Feb 2, 1994	4.00	4.00	3.50	4.00
199	NASDAQ	CECO	Tue, Feb 1, 1994	4.00	4.00	4.00	4.00
198	NASDAQ	CECO	Mon, Jan 31, 1994	3.75	4.00	3.75	4.00
197	NASDAQ	CECO	Fri, Jan 28, 1994	4.00	4.00	4.00	4.00
196	NASDAQ	CECO	Thu, Jan 27, 1994	4.00	4.00	4.00	4.00
195	NASDAQ	CECO	Wed, Jan 26, 1994	4.00	4.00	3.75	4.00
194	NASDAQ	CECO	Tue, Jan 25, 1994	3.69	4.00	3.50	3.50
193	NASDAQ	CECO	Mon, Jan 24, 1994	3.88	3.88	3.88	3.88
192	NASDAQ	CECO	Fri, Jan 21, 1994	3.88	3.88	3.63	3.63
191	NASDAQ	CECO	Thu, Jan 20, 1994	3.63	3.88	3.63	3.88
190	NASDAQ	CECO	Wed, Jan 19, 1994	3.38	3.63	3.38	3.63
189	NASDAQ	CECO	Tue, Jan 18, 1994	3.75	3.88	3.50	3.63
188	NASDAQ	CECO	Mon, Jan 17, 1994	3.50	3.75	3.50	3.75
187	NASDAQ	CECO	Fri, Jan 14, 1994	3.25	3.25	3.25	3.25
186	NASDAQ	CECO	Thu, Jan 13, 1994	3.50	3.50	3.25	3.50
185	NASDAQ	CECO	Tue, Jan 11, 1994	3.50	3.50	3.50	3.50
184	NASDAQ	CECO	Mon, Jan 10, 1994	3.69	3.75	3.69	3.75
183	NASDAQ	CECO	Thu, Jan 6, 1994	3.50	3.75	3.50	3.75
182	NASDAQ	CECO	Wed, Jan 5, 1994	3.75	3.88	3.50	3.50
181	NASDAQ	CECO	Tue, Jan 4, 1994	3.25	3.75	3.25	3.75
180	NASDAQ	CECO	Mon, Jan 3, 1994	3.63	3.63	3.50	3.50
179	NASDAQ	CECO	Fri, Dec 31, 1993	3.63	3.63	3.19	3.19
178	NASDAQ	CECO	Wed, Dec 29, 1993	3.38	3.50	3.38	3.38
177	NASDAQ	CECO	Tue, Dec 28, 1993	3.44	3.50	3.38	3.38
176	NASDAQ	CECO	Mon, Dec 27, 1993	3.50	3.50	3.38	3.38
175	NASDAQ	CECO	Thu, Dec 23, 1993	3.50	3.50	3.25	3.25
174	NASDAQ	CECO	Wed, Dec 22, 1993	3.13	3.50	3.13	3.25
173	NASDAQ	CECO	Tue, Dec 21, 1993	3.31	3.41	3.00	3.00
172	NASDAQ	CECO	Mon, Dec 20, 1993	3.00	3.50	3.00	3.50
171	NASDAQ	CECO	Fri, Dec 17, 1993	3.88	3.88	3.00	3.38
170	NASDAQ	CECO	Thu, Dec 16, 1993	3.50	3.88	3.50	3.75
169	NASDAQ	CECO	Wed, Dec 15, 1993	3.88	3.88	3.50	3.63
168	NASDAQ	CECO	Tue, Dec 14, 1993	3.50	3.63	3.50	3.56
167	NASDAQ	CECO	Fri, Dec 10, 1993	3.50	3.50	3.50	3.50
166	NASDAQ	CECO	Thu, Dec 9, 1993	3.88	3.88	3.75	3.75
165	NASDAQ	CECO	Wed, Dec 8, 1993	3.50	3.88	3.50	3.63
164	NASDAQ	CECO	Tue, Dec 7, 1993	3.81	3.81	3.81	3.81
163	NASDAQ	CECO	Mon, Dec 6, 1993	3.63	3.88	3.63	3.88
162	NASDAQ	CECO	Fri, Dec 3, 1993	3.50	3.69	3.50	3.69
161	NASDAQ	CECO	Thu, Dec 2, 1993	3.94	3.94	3.50	3.63
160	NASDAQ	CECO	Wed, Dec 1, 1993	3.38	3.94	3.25	3.94
159	NASDAQ	CECO	Tue, Nov 30, 1993	3.31	3.50	3.00	3.25
158	NASDAQ	CECO	Mon, Nov 29, 1993	3.31	3.75	3.31	3.75
157	NASDAQ	CECO	Wed, Nov 24, 1993	3.56	3.75	3.31	3.75
156	NASDAQ	CECO	Tue, Nov 23, 1993	3.56	3.94	3.50	3.94
155	NASDAQ	CECO	Mon, Nov 22, 1993	3.63	3.94	3.56	3.94
154	NASDAQ	CECO	Fri, Nov 19, 1993	3.81	4.00	3.81	4.00
153	NASDAQ	CECO	Thu, Nov 18, 1993	4.13	4.13	3.88	4.00
152	NASDAQ	CECO	Wed, Nov 17, 1993	4.13	4.50	4.00	4.16
151	NASDAQ	CECO	Tue, Nov 16, 1993	4.50	4.50	4.00	4.50
150	NASDAQ	CECO	Mon, Nov 15, 1993	4.00	4.50	4.00	4.50
149	NASDAQ	CECO	Fri, Nov 12, 1993	4.13	4.19	4.13	4.13
148	NASDAQ	CECO	Thu, Nov 11, 1993	4.38	4.38	4.13	4.38
147	NASDAQ	CECO	Wed, Nov 10, 1993	4.50	4.50	4.50	4.50
146	NASDAQ	CECO	Tue, Nov 9, 1993	4.31	4.31	4.13	4.13
145	NASDAQ	CECO	Mon, Nov 8, 1993	4.31	4.31	4.00	4.25
144	NASDAQ	CECO	Fri, Nov 5, 1993	4.56	4.56	4.31	4.38
143	NASDAQ	CECO	Thu, Nov 4, 1993	4.63	4.63	4.56	4.56
142	NASDAQ	CECO	Wed, Nov 3, 1993	4.56	4.81	4.56	4.56
141	NASDAQ	CECO	Tue, Nov 2, 1993	4.69	4.69	4.56	4.56
140	NASDAQ	CECO	Mon, Nov 1, 1993	4.69	5.00	4.69	4.69
139	NASDAQ	CECO	Fri, Oct 29, 1993	4.88	5.00	4.63	5.00
138	NASDAQ	CECO	Thu, Oct 28, 1993	5.13	5.13	4.88	4.88
137	NASDAQ	CECO	Wed, Oct 27, 1993	4.75	5.25	4.75	4.88
136	NASDAQ	CECO	Tue, Oct 26, 1993	4.75	4.75	4.75	4.75
135	NASDAQ	CECO	Mon, Oct 25, 1993	5.13	5.31	4.50	4.94
134	NASDAQ	CECO	Fri, Oct 22, 1993	5.31	5.31	5.13	5.16
133	NASDAQ	CECO	Thu, Oct 21, 1993	5.19	5.38	5.19	5.22
132	NASDAQ	CECO	Wed, Oct 20, 1993	5.19	5.50	5.13	5.25
131	NASDAQ	CECO	Tue, Oct 19, 1993	5.13	5.50	5.13	5.50
130	NASDAQ	CECO	Mon, Oct 18, 1993	5.25	5.25	5.22	5.25
129	NASDAQ	CECO	Fri, Oct 15, 1993	5.31	5.56	5.25	5.25
128	NASDAQ	CECO	Thu, Oct 14, 1993	5.31	5.56	5.13	5.56
127	NASDAQ	CECO	Wed, Oct 13, 1993	5.13	5.50	5.06	5.13
126	NASDAQ	CECO	Tue, Oct 12, 1993	5.13	5.13	5.00	5.06
125	NASDAQ	CECO	Mon, Oct 11, 1993	5.03	5.13	5.00	5.03
124	NASDAQ	CECO	Fri, Oct 8, 1993	5.13	5.25	5.00	5.19
123	NASDAQ	CECO	Thu, Oct 7, 1993	5.25	5.31	5.19	5.25
122	NASDAQ	CECO	Wed, Oct 6, 1993	5.00	5.25	4.75	5.25
121	NASDAQ	CECO	Tue, Oct 5, 1993	5.13	5.25	4.38	4.50
120	NASDAQ	CECO	Mon, Oct 4, 1993	5.88	5.88	4.50	5.13
119	NASDAQ	CECO	Fri, Oct 1, 1993	5.50	5.75	5.50	5.75
118	NASDAQ	CECO	Thu, Sep 30, 1993	5.63	5.88	5.38	5.88
117	NASDAQ	CECO	Wed, Sep 29, 1993	5.81	5.88	5.81	5.88
116	NASDAQ	CECO	Tue, Sep 28, 1993	5.88	5.88	5.88	5.88
115	NASDAQ	CECO	Mon, Sep 27, 1993	5.63	5.88	5.63	5.88
114	NASDAQ	CECO	Fri, Sep 24, 1993	5.50	5.56	5.38	5.56
113	NASDAQ	CECO	Thu, Sep 23, 1993	5.38	5.88	5.38	5.88
112	NASDAQ	CECO	Wed, Sep 22, 1993	5.38	5.38	5.38	5.38
111	NASDAQ	CECO	Tue, Sep 21, 1993	5.50	5.75	5.38	5.38
110	NASDAQ	CECO	Mon, Sep 20, 1993	5.38	5.38	5.38	5.38
109	NASDAQ	CECO	Fri, Sep 17, 1993	5.50	5.63	5.38	5.63
108	NASDAQ	CECO	Wed, Sep 15, 1993	5.75	5.75	5.44	5.56
107	NASDAQ	CECO	Tue, Sep 14, 1993	5.75	5.75	5.50	5.50
106	NASDAQ	CECO	Mon, Sep 13, 1993	5.50	5.75	5.50	5.75
105	NASDAQ	CECO	Fri, Sep 10, 1993	5.50	5.75	5.50	5.50
104	NASDAQ	CECO	Thu, Sep 9, 1993	5.75	5.75	5.50	5.50
103	NASDAQ	CECO	Wed, Sep 8, 1993	5.75	5.75	5.50	5.63
102	NASDAQ	CECO	Tue, Sep 7, 1993	5.75	5.75	5.75	5.75
101	NASDAQ	CECO	Fri, Sep 3, 1993	5.50	5.75	5.50	5.75
100	NASDAQ	CECO	Thu, Sep 2, 1993	5.75	5.75	5.75	5.75
99	NASDAQ	CECO	Wed, Sep 1, 1993	5.75	5.75	5.50	5.50
98	NASDAQ	CECO	Tue, Aug 31, 1993	5.63	5.63	5.50	5.50
97	NASDAQ	CECO	Mon, Aug 30, 1993	5.63	5.63	5.50	5.63
96	NASDAQ	CECO	Fri, Aug 27, 1993	5.56	5.56	5.56	5.56
95	NASDAQ	CECO	Thu, Aug 26, 1993	5.63	5.75	5.56	5.56
94	NASDAQ	CECO	Wed, Aug 25, 1993	5.75	5.75	5.50	5.75
93	NASDAQ	CECO	Tue, Aug 24, 1993	5.50	5.63	5.50	5.50
92	NASDAQ	CECO	Mon, Aug 23, 1993	5.63	5.63	5.25	5.28
91	NASDAQ	CECO	Fri, Aug 20, 1993	5.50	5.75	5.38	5.56
90	NASDAQ	CECO	Thu, Aug 19, 1993	5.44	5.88	5.44	5.50
89	NASDAQ	CECO	Wed, Aug 18, 1993	5.38	5.44	5.38	5.44
88	NASDAQ	CECO	Tue, Aug 17, 1993	5.75	5.75	5.38	5.38
87	NASDAQ	CECO	Mon, Aug 16, 1993	5.75	5.75	5.75	5.75
86	NASDAQ	CECO	Fri, Aug 13, 1993	5.75	5.75	5.38	5.38
85	NASDAQ	CECO	Thu, Aug 12, 1993	5.38	5.56	5.38	5.41
84	NASDAQ	CECO	Wed, Aug 11, 1993	5.31	5.63	5.25	5.25
83	NASDAQ	CECO	Tue, Aug 10, 1993	5.25	5.38	5.19	5.25
82	NASDAQ	CECO	Mon, Aug 9, 1993	5.13	5.13	5.13	5.13
81	NASDAQ	CECO	Fri, Aug 6, 1993	5.13	5.38	5.13	5.38
80	NASDAQ	CECO	Thu, Aug 5, 1993	5.00	5.38	5.00	5.06
79	NASDAQ	CECO	Wed, Aug 4, 1993	5.00	5.25	5.00	5.25
78	NASDAQ	CECO	Tue, Aug 3, 1993	5.00	5.25	5.00	5.00
77	NASDAQ	CECO	Mon, Aug 2, 1993	5.00	5.00	5.00	5.00
76	NASDAQ	CECO	Fri, Jul 30, 1993	5.06	5.25	5.00	5.00
75	NASDAQ	CECO	Thu, Jul 29, 1993	5.25	5.25	5.25	5.25
74	NASDAQ	CECO	Wed, Jul 28, 1993	5.00	5.06	5.00	5.06
73	NASDAQ	CECO	Tue, Jul 27, 1993	5.25	5.25	5.00	5.00
72	NASDAQ	CECO	Fri, Jul 23, 1993	5.13	5.25	4.94	5.00
71	NASDAQ	CECO	Thu, Jul 22, 1993	5.13	5.13	4.88	4.94
70	NASDAQ	CECO	Wed, Jul 21, 1993	4.88	5.00	4.88	4.88
69	NASDAQ	CECO	Tue, Jul 20, 1993	4.81	5.00	4.81	4.88
68	NASDAQ	CECO	Mon, Jul 19, 1993	5.00	5.00	4.81	4.81
67	NASDAQ	CECO	Fri, Jul 16, 1993	4.88	4.88	4.88	4.88
66	NASDAQ	CECO	Thu, Jul 15, 1993	4.63	4.63	4.63	4.63
65	NASDAQ	CECO	Mon, Jul 12, 1993	4.63	5.00	4.63	5.00
64	NASDAQ	CECO	Fri, Jul 9, 1993	4.75	4.75	4.75	4.75
63	NASDAQ	CECO	Thu, Jul 8, 1993	4.63	4.63	4.63	4.63
62	NASDAQ	CECO	Wed, Jul 7, 1993	4.75	4.75	4.75	4.75
61	NASDAQ	CECO	Fri, Jul 2, 1993	4.69	4.75	4.69	4.75
60	NASDAQ	CECO	Thu, Jul 1, 1993	4.63	5.00	4.63	4.75
59	NASDAQ	CECO	Wed, Jun 30, 1993	4.50	4.50	4.50	4.50
58	NASDAQ	CECO	Tue, Jun 29, 1993	5.00	5.00	5.00	5.00
57	NASDAQ	CECO	Mon, Jun 28, 1993	5.00	5.00	5.00	5.00
56	NASDAQ	CECO	Fri, Jun 25, 1993	4.75	4.88	4.50	4.63
55	NASDAQ	CECO	Wed, Jun 23, 1993	4.75	4.75	4.50	4.50
54	NASDAQ	CECO	Tue, Jun 22, 1993	4.38	4.38	4.38	4.38
53	NASDAQ	CECO	Mon, Jun 21, 1993	4.38	4.38	4.38	4.38
52	NASDAQ	CECO	Fri, Jun 18, 1993	4.63	4.63	4.38	4.38
51	NASDAQ	CECO	Thu, Jun 17, 1993	4.69	4.75	4.25	4.75
50	NASDAQ	CECO	Wed, Jun 16, 1993	4.75	4.75	4.25	4.75
49	NASDAQ	CECO	Tue, Jun 15, 1993	4.31	4.50	4.25	4.25
48	NASDAQ	CECO	Mon, Jun 14, 1993	4.44	4.44	4.25	4.25
47	NASDAQ	CECO	Fri, Jun 11, 1993	4.13	4.44	3.88	4.25
46	NASDAQ	CECO	Thu, Jun 10, 1993	4.25	4.25	4.25	4.25
45	NASDAQ	CECO	Mon, Jun 7, 1993	4.25	4.25	4.25	4.25
44	NASDAQ	CECO	Thu, Jun 3, 1993	4.06	4.13	4.06	4.13
43	NASDAQ	CECO	Wed, Jun 2, 1993	3.75	4.00	3.75	4.00
42	NASDAQ	CECO	Fri, May 28, 1993	4.00	4.00	4.00	4.00
41	NASDAQ	CECO	Thu, May 27, 1993	4.00	4.00	4.00	4.00
40	NASDAQ	CECO	Wed, May 26, 1993	3.75	3.75	3.75	3.75
39	NASDAQ	CECO	Tue, May 25, 1993	3.94	4.00	3.75	3.88
38	NASDAQ	CECO	Fri, May 21, 1993	3.63	4.00	3.50	4.00
37	NASDAQ	CECO	Wed, May 19, 1993	3.50	3.88	3.50	3.75
36	NASDAQ	CECO	Tue, May 18, 1993	3.25	3.25	3.25	3.25
35	NASDAQ	CECO	Fri, May 14, 1993	3.13	3.75	3.13	3.75
34	NASDAQ	CECO	Thu, May 13, 1993	3.25	3.25	3.00	3.00
33	NASDAQ	CECO	Wed, May 12, 1993	2.88	3.25	2.88	3.25
32	NASDAQ	CECO	Tue, May 11, 1993	3.25	3.25	2.88	3.19
31	NASDAQ	CECO	Fri, May 7, 1993	3.19	3.19	3.00	3.00
30	NASDAQ	CECO	Thu, May 6, 1993	3.00	3.00	3.00	3.00
29	NASDAQ	CECO	Thu, Apr 29, 1993	3.00	3.00	3.00	3.00
28	NASDAQ	CECO	Fri, Apr 23, 1993	3.00	3.00	3.00	3.00
27	NASDAQ	CECO	Thu, Apr 22, 1993	3.00	3.00	3.00	3.00
26	NASDAQ	CECO	Mon, Apr 19, 1993	3.13	3.13	3.00	3.00
25	NASDAQ	CECO	Fri, Apr 16, 1993	3.00	3.00	3.00	3.00
24	NASDAQ	CECO	Thu, Apr 15, 1993	3.00	3.00	3.00	3.00
23	NASDAQ	CECO	Mon, Apr 12, 1993	3.00	3.00	3.00	3.00
22	NASDAQ	CECO	Thu, Apr 8, 1993	3.38	3.38	3.13	3.13
21	NASDAQ	CECO	Wed, Apr 7, 1993	3.13	3.13	3.13	3.13
20	NASDAQ	CECO	Mon, Apr 5, 1993	3.13	3.25	3.13	3.25
19	NASDAQ	CECO	Fri, Apr 2, 1993	3.00	3.06	3.00	3.06
18	NASDAQ	CECO	Tue, Mar 30, 1993	3.00	3.00	3.00	3.00
17	NASDAQ	CECO	Fri, Mar 26, 1993	3.00	3.00	3.00	3.00
16	NASDAQ	CECO	Thu, Mar 25, 1993	3.00	3.00	3.00	3.00
15	NASDAQ	CECO	Tue, Mar 23, 1993	3.25	3.25	3.25	3.25
14	NASDAQ	CECO	Thu, Mar 18, 1993	3.00	3.00	3.00	3.00
13	NASDAQ	CECO	Wed, Mar 17, 1993	3.00	3.00	3.00	3.00
12	NASDAQ	CECO	Tue, Mar 16, 1993	3.00	3.00	3.00	3.00
11	NASDAQ	CECO	Fri, Mar 12, 1993	3.00	3.50	3.00	3.50
10	NASDAQ	CECO	Thu, Mar 11, 1993	3.00	3.00	3.00	3.00
9	NASDAQ	CECO	Wed, Mar 10, 1993	3.50	3.50	3.50	3.50
8	NASDAQ	CECO	Tue, Mar 9, 1993	3.00	3.00	3.00	3.00
7	NASDAQ	CECO	Mon, Mar 8, 1993	3.00	3.00	3.00	3.00
6	NASDAQ	CECO	Fri, Mar 5, 1993	3.50	3.50	3.00	3.13
5	NASDAQ	CECO	Tue, Mar 2, 1993	3.13	3.13	3.13	3.13
4	NASDAQ	CECO	Mon, Mar 1, 1993	3.38	3.38	3.38	3.38
3	NASDAQ	CECO	Thu, Feb 25, 1993	3.25	3.25	3.25	3.25
2	NASDAQ	CECO	Wed, Feb 24, 1993	3.00	3.00	3.00	3.00
1	NASDAQ	CECO	Fri, Feb 19, 1993	3.00	3.00	3.00	3.00
#	Exchange	Symbol	Date	Open	High	Low	Close

CECO Environmental Corp NASDAQ:CECO Historical Prices

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