Vanguard Russell 3000 ETF NASDAQ:VTHR Historical Prices

Below are the 3365 trading days of historical prices for VTHR.

#	Exchange	Symbol	Date	Open	High	Low	Close
3365	NASDAQ	VTHR	Tue, Mar 5, 2024	226.91	226.98	225.56	225.56
3364	NASDAQ	VTHR	Mon, Mar 4, 2024	227.98	228.88	227.98	228.06
3363	NASDAQ	VTHR	Fri, Mar 1, 2024	226.63	228.37	226.43	228.31
3362	NASDAQ	VTHR	Thu, Feb 29, 2024	226.58	226.96	225.74	226.44
3361	NASDAQ	VTHR	Wed, Feb 28, 2024	225.18	225.66	225.18	225.54
3360	NASDAQ	VTHR	Tue, Feb 27, 2024	225.76	225.80	225.01	225.80
3359	NASDAQ	VTHR	Mon, Feb 26, 2024	225.97	225.97	225.09	225.09
3358	NASDAQ	VTHR	Fri, Feb 23, 2024	226.56	226.57	225.61	225.61
3357	NASDAQ	VTHR	Thu, Feb 22, 2024	224.09	225.73	223.89	225.45
3356	NASDAQ	VTHR	Wed, Feb 21, 2024	220.70	221.30	219.77	221.30
3355	NASDAQ	VTHR	Tue, Feb 20, 2024	222.06	222.06	220.50	221.23
3354	NASDAQ	VTHR	Fri, Feb 16, 2024	223.77	224.16	222.41	222.62
3353	NASDAQ	VTHR	Thu, Feb 15, 2024	222.67	223.99	222.32	223.99
3352	NASDAQ	VTHR	Wed, Feb 14, 2024	221.26	222.26	220.26	222.26
3351	NASDAQ	VTHR	Tue, Feb 13, 2024	219.38	220.53	218.32	219.83
3350	NASDAQ	VTHR	Mon, Feb 12, 2024	223.16	224.26	223.05	223.15
3349	NASDAQ	VTHR	Fri, Feb 9, 2024	222.18	223.14	221.82	223.14
3348	NASDAQ	VTHR	Thu, Feb 8, 2024	221.19	221.59	221.08	221.44
3347	NASDAQ	VTHR	Wed, Feb 7, 2024	220.53	221.29	219.88	221.29
3346	NASDAQ	VTHR	Tue, Feb 6, 2024	219.29	219.39	218.54	219.39
3345	NASDAQ	VTHR	Mon, Feb 5, 2024	219.35	219.35	217.78	218.82
3344	NASDAQ	VTHR	Fri, Feb 2, 2024	217.45	220.16	217.45	219.63
3343	NASDAQ	VTHR	Thu, Feb 1, 2024	215.83	217.65	215.80	217.42
3342	NASDAQ	VTHR	Wed, Jan 31, 2024	217.40	217.69	214.92	215.09
3341	NASDAQ	VTHR	Tue, Jan 30, 2024	218.74	218.82	218.30	218.77
3340	NASDAQ	VTHR	Mon, Jan 29, 2024	217.01	219.05	217.01	219.05
3339	NASDAQ	VTHR	Fri, Jan 26, 2024	216.96	217.67	216.71	217.17
3338	NASDAQ	VTHR	Thu, Jan 25, 2024	217.04	217.19	216.23	217.18
3337	NASDAQ	VTHR	Wed, Jan 24, 2024	217.16	217.50	215.77	215.95
3336	NASDAQ	VTHR	Tue, Jan 23, 2024	216.05	216.15	215.13	216.15
3335	NASDAQ	VTHR	Mon, Jan 22, 2024	215.67	216.17	215.30	215.37
3334	NASDAQ	VTHR	Fri, Jan 19, 2024	212.83	214.81	212.37	214.81
3333	NASDAQ	VTHR	Thu, Jan 18, 2024	211.19	212.27	210.37	212.06
3332	NASDAQ	VTHR	Wed, Jan 17, 2024	209.94	210.46	209.21	210.46
3331	NASDAQ	VTHR	Tue, Jan 16, 2024	211.38	212.27	210.85	211.49
3330	NASDAQ	VTHR	Fri, Jan 12, 2024	213.08	213.45	211.97	212.47
3329	NASDAQ	VTHR	Thu, Jan 11, 2024	213.04	213.04	210.69	212.23
3328	NASDAQ	VTHR	Wed, Jan 10, 2024	211.84	212.87	211.80	212.75
3327	NASDAQ	VTHR	Tue, Jan 9, 2024	211.11	211.98	210.62	211.58
3326	NASDAQ	VTHR	Mon, Jan 8, 2024	209.23	212.15	209.23	212.15
3325	NASDAQ	VTHR	Fri, Jan 5, 2024	208.31	210.02	208.31	208.69
3324	NASDAQ	VTHR	Thu, Jan 4, 2024	209.15	210.23	208.47	208.47
3323	NASDAQ	VTHR	Wed, Jan 3, 2024	210.09	210.22	208.90	208.90
3322	NASDAQ	VTHR	Tue, Jan 2, 2024	212.83	212.83	210.42	211.48
3321	NASDAQ	VTHR	Fri, Dec 29, 2023	213.61	213.77	212.08	212.83
3320	NASDAQ	VTHR	Thu, Dec 28, 2023	213.21	213.88	213.21	213.35
3319	NASDAQ	VTHR	Wed, Dec 27, 2023	213.29	213.59	212.91	213.49
3318	NASDAQ	VTHR	Tue, Dec 26, 2023	212.41	213.38	212.41	213.24
3317	NASDAQ	VTHR	Fri, Dec 22, 2023	212.21	212.73	211.25	212.17
3316	NASDAQ	VTHR	Thu, Dec 21, 2023	211.19	211.64	210.00	211.61
3315	NASDAQ	VTHR	Wed, Dec 20, 2023	212.62	212.91	209.22	209.41
3314	NASDAQ	VTHR	Tue, Dec 19, 2023	210.98	212.40	210.98	212.20
3313	NASDAQ	VTHR	Mon, Dec 18, 2023	211.14	212.10	211.14	211.93
3312	NASDAQ	VTHR	Fri, Dec 15, 2023	211.07	211.27	210.25	210.93
3311	NASDAQ	VTHR	Thu, Dec 14, 2023	211.39	211.79	209.90	211.25
3310	NASDAQ	VTHR	Wed, Dec 13, 2023	207.08	210.07	206.63	210.07
3309	NASDAQ	VTHR	Tue, Dec 12, 2023	205.83	206.83	205.20	206.83
3308	NASDAQ	VTHR	Mon, Dec 11, 2023	204.68	205.84	204.68	205.72
3307	NASDAQ	VTHR	Fri, Dec 8, 2023	203.88	205.32	203.88	204.90
3306	NASDAQ	VTHR	Thu, Dec 7, 2023	203.17	204.29	203.17	204.27
3305	NASDAQ	VTHR	Wed, Dec 6, 2023	204.38	204.47	202.52	202.72
3304	NASDAQ	VTHR	Tue, Dec 5, 2023	203.01	203.74	202.80	203.48
3303	NASDAQ	VTHR	Mon, Dec 4, 2023	203.27	204.07	202.65	203.92
3302	NASDAQ	VTHR	Fri, Dec 1, 2023	202.24	204.56	202.24	204.34
3301	NASDAQ	VTHR	Thu, Nov 30, 2023	202.55	202.84	201.66	202.66
3300	NASDAQ	VTHR	Wed, Nov 29, 2023	202.59	203.56	201.81	201.92
3299	NASDAQ	VTHR	Tue, Nov 28, 2023	201.74	202.48	201.26	202.06
3298	NASDAQ	VTHR	Mon, Nov 27, 2023	201.56	202.24	201.56	201.65
3297	NASDAQ	VTHR	Fri, Nov 24, 2023	201.90	202.24	201.79	202.24
3296	NASDAQ	VTHR	Wed, Nov 22, 2023	201.38	202.26	201.38	201.80
3295	NASDAQ	VTHR	Tue, Nov 21, 2023	201.23	201.23	200.56	201.10
3294	NASDAQ	VTHR	Mon, Nov 20, 2023	199.96	201.85	199.63	201.48
3293	NASDAQ	VTHR	Fri, Nov 17, 2023	199.52	200.20	199.52	200.14
3292	NASDAQ	VTHR	Thu, Nov 16, 2023	199.27	199.73	198.73	199.35
3291	NASDAQ	VTHR	Wed, Nov 15, 2023	199.51	200.40	199.51	199.78
3290	NASDAQ	VTHR	Tue, Nov 14, 2023	197.38	199.65	197.38	199.21
3289	NASDAQ	VTHR	Mon, Nov 13, 2023	194.79	195.23	193.96	194.80
3288	NASDAQ	VTHR	Fri, Nov 10, 2023	192.86	194.98	192.27	194.89
3287	NASDAQ	VTHR	Thu, Nov 9, 2023	194.12	194.12	191.95	192.19
3286	NASDAQ	VTHR	Wed, Nov 8, 2023	193.78	194.11	192.93	193.64
3285	NASDAQ	VTHR	Tue, Nov 7, 2023	193.45	194.06	192.75	193.87
3284	NASDAQ	VTHR	Mon, Nov 6, 2023	193.77	193.77	192.42	193.26
3283	NASDAQ	VTHR	Fri, Nov 3, 2023	191.98	193.87	191.98	193.03
3282	NASDAQ	VTHR	Thu, Nov 2, 2023	189.23	190.97	189.23	190.97
3281	NASDAQ	VTHR	Wed, Nov 1, 2023	185.88	187.46	185.56	187.16
3280	NASDAQ	VTHR	Tue, Oct 31, 2023	183.95	185.42	183.95	185.42
3279	NASDAQ	VTHR	Mon, Oct 30, 2023	183.25	184.52	182.78	183.90
3278	NASDAQ	VTHR	Fri, Oct 27, 2023	183.39	183.73	181.59	182.01
3277	NASDAQ	VTHR	Thu, Oct 26, 2023	184.44	184.46	182.93	182.93
3276	NASDAQ	VTHR	Wed, Oct 25, 2023	187.27	187.27	184.75	185.00
3275	NASDAQ	VTHR	Tue, Oct 24, 2023	187.68	188.24	186.94	188.00
3274	NASDAQ	VTHR	Mon, Oct 23, 2023	185.86	187.94	185.61	186.37
3273	NASDAQ	VTHR	Fri, Oct 20, 2023	188.95	188.95	186.91	186.91
3272	NASDAQ	VTHR	Thu, Oct 19, 2023	191.22	192.09	189.16	189.16
3271	NASDAQ	VTHR	Wed, Oct 18, 2023	192.91	193.15	190.98	190.99
3270	NASDAQ	VTHR	Tue, Oct 17, 2023	192.54	194.64	192.48	193.99
3269	NASDAQ	VTHR	Mon, Oct 16, 2023	192.73	193.89	192.70	193.64
3268	NASDAQ	VTHR	Fri, Oct 13, 2023	193.73	193.73	191.00	191.52
3267	NASDAQ	VTHR	Thu, Oct 12, 2023	194.22	194.22	191.74	192.71
3266	NASDAQ	VTHR	Wed, Oct 11, 2023	193.82	194.20	193.01	193.93
3265	NASDAQ	VTHR	Tue, Oct 10, 2023	192.92	194.46	192.52	193.39
3264	NASDAQ	VTHR	Mon, Oct 9, 2023	190.25	192.44	189.79	192.04
3263	NASDAQ	VTHR	Fri, Oct 6, 2023	187.99	191.60	187.20	191.15
3262	NASDAQ	VTHR	Thu, Oct 5, 2023	188.37	189.04	187.30	188.54
3261	NASDAQ	VTHR	Wed, Oct 4, 2023	187.78	189.06	187.59	188.77
3260	NASDAQ	VTHR	Tue, Oct 3, 2023	188.98	189.81	186.94	187.63
3259	NASDAQ	VTHR	Mon, Oct 2, 2023	190.34	190.72	189.14	190.01
3258	NASDAQ	VTHR	Fri, Sep 29, 2023	192.60	192.60	190.31	190.73
3257	NASDAQ	VTHR	Thu, Sep 28, 2023	190.08	191.56	189.65	190.99
3256	NASDAQ	VTHR	Wed, Sep 27, 2023	190.35	190.35	188.52	189.97
3255	NASDAQ	VTHR	Tue, Sep 26, 2023	191.40	191.40	189.32	189.32
3254	NASDAQ	VTHR	Mon, Sep 25, 2023	190.90	192.47	190.90	192.47
3253	NASDAQ	VTHR	Fri, Sep 22, 2023	192.33	192.91	191.33	191.33
3252	NASDAQ	VTHR	Thu, Sep 21, 2023	194.28	194.28	191.89	192.09
3251	NASDAQ	VTHR	Wed, Sep 20, 2023	198.52	198.52	196.14	196.14
3250	NASDAQ	VTHR	Tue, Sep 19, 2023	197.83	198.13	196.67	197.93
3249	NASDAQ	VTHR	Mon, Sep 18, 2023	197.99	198.87	197.99	198.24
3248	NASDAQ	VTHR	Fri, Sep 15, 2023	200.09	200.09	198.09	198.42
3247	NASDAQ	VTHR	Thu, Sep 14, 2023	199.88	200.82	199.66	200.76
3246	NASDAQ	VTHR	Wed, Sep 13, 2023	198.87	199.32	198.39	198.67
3245	NASDAQ	VTHR	Tue, Sep 12, 2023	199.31	199.90	198.77	198.78
3244	NASDAQ	VTHR	Mon, Sep 11, 2023	199.78	199.78	199.74	199.74
3243	NASDAQ	VTHR	Fri, Sep 8, 2023	198.41	199.12	198.23	198.71
3242	NASDAQ	VTHR	Thu, Sep 7, 2023	197.35	198.39	197.35	198.11
3241	NASDAQ	VTHR	Wed, Sep 6, 2023	200.00	200.00	198.11	199.17
3240	NASDAQ	VTHR	Tue, Sep 5, 2023	200.98	201.04	200.11	200.11
3239	NASDAQ	VTHR	Fri, Sep 1, 2023	201.99	201.99	200.84	201.24
3238	NASDAQ	VTHR	Thu, Aug 31, 2023	201.19	201.79	200.76	200.76
3237	NASDAQ	VTHR	Wed, Aug 30, 2023	199.87	201.19	199.87	201.00
3236	NASDAQ	VTHR	Tue, Aug 29, 2023	196.99	200.21	196.99	200.21
3235	NASDAQ	VTHR	Mon, Aug 28, 2023	197.22	197.42	196.47	197.35
3234	NASDAQ	VTHR	Fri, Aug 25, 2023	195.35	196.37	194.04	196.02
3233	NASDAQ	VTHR	Thu, Aug 24, 2023	198.01	198.12	194.67	194.67
3232	NASDAQ	VTHR	Wed, Aug 23, 2023	195.57	197.54	195.57	197.23
3231	NASDAQ	VTHR	Tue, Aug 22, 2023	196.33	196.33	195.03	195.10
3230	NASDAQ	VTHR	Mon, Aug 21, 2023	195.49	195.90	194.04	195.87
3229	NASDAQ	VTHR	Fri, Aug 18, 2023	193.21	194.95	193.21	194.31
3228	NASDAQ	VTHR	Thu, Aug 17, 2023	196.47	196.47	194.30	194.30
3227	NASDAQ	VTHR	Wed, Aug 16, 2023	197.10	197.84	196.05	196.07
3226	NASDAQ	VTHR	Tue, Aug 15, 2023	198.99	198.99	197.74	197.74
3225	NASDAQ	VTHR	Mon, Aug 14, 2023	198.24	199.90	198.24	199.90
3224	NASDAQ	VTHR	Fri, Aug 11, 2023	198.25	199.11	198.25	198.62
3223	NASDAQ	VTHR	Thu, Aug 10, 2023	200.62	200.62	198.95	199.20
3222	NASDAQ	VTHR	Wed, Aug 9, 2023	200.40	200.41	198.79	198.79
3221	NASDAQ	VTHR	Tue, Aug 8, 2023	199.60	200.33	198.80	200.22
3220	NASDAQ	VTHR	Mon, Aug 7, 2023	200.29	201.41	200.29	201.41
3219	NASDAQ	VTHR	Fri, Aug 4, 2023	201.60	202.27	199.53	199.53
3218	NASDAQ	VTHR	Thu, Aug 3, 2023	200.08	201.41	199.99	200.86
3217	NASDAQ	VTHR	Wed, Aug 2, 2023	202.41	202.56	200.93	201.44
3216	NASDAQ	VTHR	Tue, Aug 1, 2023	204.11	204.28	203.87	204.11
3215	NASDAQ	VTHR	Mon, Jul 31, 2023	204.15	204.78	204.09	204.78
3214	NASDAQ	VTHR	Fri, Jul 28, 2023	203.50	204.32	203.50	204.14
3213	NASDAQ	VTHR	Thu, Jul 27, 2023	204.96	205.04	201.82	201.82
3212	NASDAQ	VTHR	Wed, Jul 26, 2023	203.25	204.02	203.00	203.62
3211	NASDAQ	VTHR	Tue, Jul 25, 2023	202.71	204.00	202.71	203.47
3210	NASDAQ	VTHR	Mon, Jul 24, 2023	202.44	203.15	202.38	202.86
3209	NASDAQ	VTHR	Fri, Jul 21, 2023	203.44	203.44	202.16	202.20
3208	NASDAQ	VTHR	Thu, Jul 20, 2023	203.30	203.30	201.93	202.37
3207	NASDAQ	VTHR	Wed, Jul 19, 2023	203.60	204.04	203.25	203.72
3206	NASDAQ	VTHR	Tue, Jul 18, 2023	201.61	203.35	201.34	203.19
3205	NASDAQ	VTHR	Mon, Jul 17, 2023	200.41	201.79	200.41	201.70
3204	NASDAQ	VTHR	Fri, Jul 14, 2023	201.69	201.69	200.43	200.48
3203	NASDAQ	VTHR	Thu, Jul 13, 2023	200.12	201.34	200.12	201.01
3202	NASDAQ	VTHR	Wed, Jul 12, 2023	199.37	199.86	199.04	199.38
3201	NASDAQ	VTHR	Tue, Jul 11, 2023	196.46	197.78	196.46	197.63
3200	NASDAQ	VTHR	Mon, Jul 10, 2023	195.54	196.36	195.38	196.36
3199	NASDAQ	VTHR	Fri, Jul 7, 2023	195.62	197.12	195.54	195.66
3198	NASDAQ	VTHR	Thu, Jul 6, 2023	195.89	195.89	194.51	195.85
3197	NASDAQ	VTHR	Wed, Jul 5, 2023	197.29	197.72	197.18	197.50
3196	NASDAQ	VTHR	Mon, Jul 3, 2023	197.70	198.00	197.39	198.00
3195	NASDAQ	VTHR	Fri, Jun 30, 2023	196.55	197.95	196.55	197.45
3194	NASDAQ	VTHR	Thu, Jun 29, 2023	194.64	195.48	194.64	195.48
3193	NASDAQ	VTHR	Wed, Jun 28, 2023	194.28	194.89	193.68	194.55
3192	NASDAQ	VTHR	Tue, Jun 27, 2023	192.75	194.62	192.49	194.37
3191	NASDAQ	VTHR	Mon, Jun 26, 2023	192.82	193.27	191.95	192.00
3190	NASDAQ	VTHR	Fri, Jun 23, 2023	193.03	193.40	192.54	192.75
3189	NASDAQ	VTHR	Thu, Jun 22, 2023	193.95	194.99	193.94	194.99
3188	NASDAQ	VTHR	Wed, Jun 21, 2023	195.49	195.49	194.38	194.73
3187	NASDAQ	VTHR	Tue, Jun 20, 2023	196.11	196.11	194.90	195.51
3186	NASDAQ	VTHR	Fri, Jun 16, 2023	198.15	198.15	196.46	196.46
3185	NASDAQ	VTHR	Thu, Jun 15, 2023	194.90	197.73	194.90	197.46
3184	NASDAQ	VTHR	Wed, Jun 14, 2023	195.43	195.88	193.54	195.05
3183	NASDAQ	VTHR	Tue, Jun 13, 2023	194.36	195.17	194.36	195.14
3182	NASDAQ	VTHR	Mon, Jun 12, 2023	192.52	193.55	192.17	193.55
3181	NASDAQ	VTHR	Fri, Jun 9, 2023	192.25	192.80	191.74	192.06
3180	NASDAQ	VTHR	Thu, Jun 8, 2023	191.04	191.78	190.84	191.78
3179	NASDAQ	VTHR	Wed, Jun 7, 2023	191.69	191.95	190.45	190.96
3178	NASDAQ	VTHR	Tue, Jun 6, 2023	190.22	191.34	190.21	191.34
3177	NASDAQ	VTHR	Mon, Jun 5, 2023	191.07	191.32	190.10	190.30
3176	NASDAQ	VTHR	Fri, Jun 2, 2023	188.80	190.95	188.80	190.62
3175	NASDAQ	VTHR	Thu, Jun 1, 2023	186.16	188.18	185.75	187.66
3174	NASDAQ	VTHR	Wed, May 31, 2023	186.30	186.37	185.24	186.09
3173	NASDAQ	VTHR	Tue, May 30, 2023	187.66	187.93	186.53	186.96
3172	NASDAQ	VTHR	Fri, May 26, 2023	184.79	187.17	184.79	186.77
3171	NASDAQ	VTHR	Thu, May 25, 2023	184.67	185.11	183.71	184.75
3170	NASDAQ	VTHR	Wed, May 24, 2023	184.24	184.24	182.89	183.50
3169	NASDAQ	VTHR	Tue, May 23, 2023	185.81	186.57	184.68	184.68
3168	NASDAQ	VTHR	Mon, May 22, 2023	186.20	187.13	186.20	186.69
3167	NASDAQ	VTHR	Fri, May 19, 2023	186.95	187.38	186.00	186.33
3166	NASDAQ	VTHR	Thu, May 18, 2023	184.54	187.00	184.54	186.75
3165	NASDAQ	VTHR	Wed, May 17, 2023	183.93	185.26	183.39	184.78
3164	NASDAQ	VTHR	Tue, May 16, 2023	183.83	183.83	182.67	182.75
3163	NASDAQ	VTHR	Mon, May 15, 2023	183.69	184.25	183.28	184.18
3162	NASDAQ	VTHR	Fri, May 12, 2023	184.14	184.24	182.15	183.41
3161	NASDAQ	VTHR	Thu, May 11, 2023	183.27	183.58	182.72	183.30
3160	NASDAQ	VTHR	Wed, May 10, 2023	184.18	184.25	182.31	183.91
3159	NASDAQ	VTHR	Tue, May 9, 2023	183.44	183.52	183.02	183.09
3158	NASDAQ	VTHR	Mon, May 8, 2023	183.72	183.94	183.26	183.73
3157	NASDAQ	VTHR	Fri, May 5, 2023	182.20	184.19	182.20	183.87
3156	NASDAQ	VTHR	Thu, May 4, 2023	181.30	181.30	179.70	180.49
3155	NASDAQ	VTHR	Wed, May 3, 2023	183.44	183.64	181.68	181.72
3154	NASDAQ	VTHR	Tue, May 2, 2023	184.45	184.45	181.60	182.94
3153	NASDAQ	VTHR	Mon, May 1, 2023	185.15	185.77	185.02	185.23
3152	NASDAQ	VTHR	Fri, Apr 28, 2023	183.02	185.24	183.02	185.24
3151	NASDAQ	VTHR	Thu, Apr 27, 2023	181.45	183.75	181.35	183.75
3150	NASDAQ	VTHR	Wed, Apr 26, 2023	181.35	181.48	180.10	180.17
3149	NASDAQ	VTHR	Tue, Apr 25, 2023	182.95	182.95	180.74	180.74
3148	NASDAQ	VTHR	Mon, Apr 24, 2023	184.38	184.39	183.51	184.25
3147	NASDAQ	VTHR	Fri, Apr 21, 2023	184.03	184.12	183.18	183.78
3146	NASDAQ	VTHR	Thu, Apr 20, 2023	183.74	184.56	183.30	184.00
3145	NASDAQ	VTHR	Wed, Apr 19, 2023	184.00	185.18	184.00	184.94
3144	NASDAQ	VTHR	Tue, Apr 18, 2023	185.33	185.54	184.76	185.07
3143	NASDAQ	VTHR	Mon, Apr 17, 2023	184.05	184.93	183.47	184.93
3142	NASDAQ	VTHR	Fri, Apr 14, 2023	184.59	185.18	183.21	184.05
3141	NASDAQ	VTHR	Thu, Apr 13, 2023	183.09	184.68	183.09	184.68
3140	NASDAQ	VTHR	Wed, Apr 12, 2023	184.14	184.14	181.95	182.31
3139	NASDAQ	VTHR	Tue, Apr 11, 2023	183.09	183.62	182.72	183.15
3138	NASDAQ	VTHR	Mon, Apr 10, 2023	181.21	182.76	181.19	182.75
3137	NASDAQ	VTHR	Thu, Apr 6, 2023	181.63	182.52	180.97	182.52
3136	NASDAQ	VTHR	Wed, Apr 5, 2023	181.92	181.92	180.94	181.89
3135	NASDAQ	VTHR	Tue, Apr 4, 2023	184.33	184.33	181.83	182.55
3134	NASDAQ	VTHR	Mon, Apr 3, 2023	182.69	183.72	182.69	183.60
3133	NASDAQ	VTHR	Fri, Mar 31, 2023	181.11	183.30	181.11	183.30
3132	NASDAQ	VTHR	Thu, Mar 30, 2023	180.38	180.69	179.67	180.40
3131	NASDAQ	VTHR	Wed, Mar 29, 2023	178.86	179.48	178.26	179.47
3130	NASDAQ	VTHR	Tue, Mar 28, 2023	177.26	177.32	176.23	177.11
3129	NASDAQ	VTHR	Mon, Mar 27, 2023	178.01	178.18	176.89	177.33
3128	NASDAQ	VTHR	Fri, Mar 24, 2023	175.06	176.89	174.57	176.89
3127	NASDAQ	VTHR	Thu, Mar 23, 2023	176.78	178.18	174.72	175.56
3126	NASDAQ	VTHR	Wed, Mar 22, 2023	178.91	180.00	175.89	176.07
3125	NASDAQ	VTHR	Tue, Mar 21, 2023	178.26	179.30	177.95	179.25
3124	NASDAQ	VTHR	Mon, Mar 20, 2023	175.59	176.87	175.59	176.76
3123	NASDAQ	VTHR	Fri, Mar 17, 2023	176.98	176.98	174.68	175.22
3122	NASDAQ	VTHR	Thu, Mar 16, 2023	173.38	177.45	173.38	177.45
3121	NASDAQ	VTHR	Wed, Mar 15, 2023	173.05	174.12	171.92	174.01
3120	NASDAQ	VTHR	Tue, Mar 14, 2023	175.20	176.41	173.76	175.82
3119	NASDAQ	VTHR	Mon, Mar 13, 2023	171.17	174.57	171.17	172.53
3118	NASDAQ	VTHR	Fri, Mar 10, 2023	175.78	176.39	172.62	173.48
3117	NASDAQ	VTHR	Thu, Mar 9, 2023	180.38	180.64	176.10	176.14
3116	NASDAQ	VTHR	Wed, Mar 8, 2023	179.94	180.19	178.90	180.03
3115	NASDAQ	VTHR	Tue, Mar 7, 2023	182.59	182.59	179.42	179.78
3114	NASDAQ	VTHR	Mon, Mar 6, 2023	183.28	183.75	182.17	182.49
3113	NASDAQ	VTHR	Fri, Mar 3, 2023	180.92	182.61	180.37	182.53
3112	NASDAQ	VTHR	Thu, Mar 2, 2023	177.38	179.99	177.38	179.86
3111	NASDAQ	VTHR	Wed, Mar 1, 2023	179.12	179.12	178.09	178.52
3110	NASDAQ	VTHR	Tue, Feb 28, 2023	179.77	180.30	179.03	179.09
3109	NASDAQ	VTHR	Mon, Feb 27, 2023	180.70	180.94	179.22	179.39
3108	NASDAQ	VTHR	Fri, Feb 24, 2023	178.51	179.21	177.91	179.20
3107	NASDAQ	VTHR	Thu, Feb 23, 2023	181.76	181.76	179.27	181.08
3106	NASDAQ	VTHR	Wed, Feb 22, 2023	180.20	181.04	179.52	180.20
3105	NASDAQ	VTHR	Tue, Feb 21, 2023	182.52	182.52	180.00	180.14
3104	NASDAQ	VTHR	Fri, Feb 17, 2023	183.97	184.17	182.63	184.17
3103	NASDAQ	VTHR	Thu, Feb 16, 2023	185.23	186.43	184.56	184.68
3102	NASDAQ	VTHR	Wed, Feb 15, 2023	185.59	187.16	185.28	187.16
3101	NASDAQ	VTHR	Tue, Feb 14, 2023	185.85	187.07	184.34	186.27
3100	NASDAQ	VTHR	Mon, Feb 13, 2023	184.60	186.18	184.05	186.18
3099	NASDAQ	VTHR	Fri, Feb 10, 2023	183.16	184.02	182.87	184.02
3098	NASDAQ	VTHR	Thu, Feb 9, 2023	187.20	187.20	183.40	183.75
3097	NASDAQ	VTHR	Wed, Feb 8, 2023	186.92	186.92	185.24	185.36
3096	NASDAQ	VTHR	Tue, Feb 7, 2023	185.19	187.86	184.18	187.46
3095	NASDAQ	VTHR	Mon, Feb 6, 2023	185.73	185.73	184.64	185.12
3094	NASDAQ	VTHR	Fri, Feb 3, 2023	186.27	188.46	186.00	186.44
3093	NASDAQ	VTHR	Thu, Feb 2, 2023	187.75	189.11	186.79	188.45
3092	NASDAQ	VTHR	Wed, Feb 1, 2023	183.35	186.17	181.91	185.60
3091	NASDAQ	VTHR	Tue, Jan 31, 2023	181.15	183.45	180.87	183.45
3090	NASDAQ	VTHR	Mon, Jan 30, 2023	181.79	182.61	180.44	180.54
3089	NASDAQ	VTHR	Fri, Jan 27, 2023	182.08	183.77	182.00	182.95
3088	NASDAQ	VTHR	Thu, Jan 26, 2023	181.57	182.39	180.46	182.28
3087	NASDAQ	VTHR	Wed, Jan 25, 2023	178.67	180.41	177.51	180.41
3086	NASDAQ	VTHR	Tue, Jan 24, 2023	179.93	180.64	179.27	180.38
3085	NASDAQ	VTHR	Mon, Jan 23, 2023	179.01	181.37	178.50	180.62
3084	NASDAQ	VTHR	Fri, Jan 20, 2023	175.63	178.38	175.07	178.38
3083	NASDAQ	VTHR	Thu, Jan 19, 2023	175.05	175.98	174.39	174.94
3082	NASDAQ	VTHR	Wed, Jan 18, 2023	179.66	180.21	176.37	176.37
3081	NASDAQ	VTHR	Tue, Jan 17, 2023	179.26	180.00	178.89	178.97
3080	NASDAQ	VTHR	Fri, Jan 13, 2023	177.25	179.62	177.25	179.60
3079	NASDAQ	VTHR	Thu, Jan 12, 2023	178.45	179.17	176.99	178.86
3078	NASDAQ	VTHR	Wed, Jan 11, 2023	176.31	177.79	176.13	177.77
3077	NASDAQ	VTHR	Tue, Jan 10, 2023	173.66	175.64	173.66	175.64
3076	NASDAQ	VTHR	Mon, Jan 9, 2023	174.89	176.46	174.01	174.28
3075	NASDAQ	VTHR	Fri, Jan 6, 2023	171.47	174.45	170.47	174.23
3074	NASDAQ	VTHR	Thu, Jan 5, 2023	171.23	171.23	170.08	170.44
3073	NASDAQ	VTHR	Wed, Jan 4, 2023	171.38	172.97	170.83	172.11
3072	NASDAQ	VTHR	Tue, Jan 3, 2023	172.81	173.19	169.53	170.99
3071	NASDAQ	VTHR	Fri, Dec 30, 2022	170.77	171.75	169.97	171.75
3070	NASDAQ	VTHR	Thu, Dec 29, 2022	169.85	172.33	169.85	171.83
3069	NASDAQ	VTHR	Wed, Dec 28, 2022	170.76	171.69	168.64	168.64
3068	NASDAQ	VTHR	Tue, Dec 27, 2022	171.63	171.66	170.47	171.16
3067	NASDAQ	VTHR	Fri, Dec 23, 2022	170.05	171.62	169.65	171.48
3066	NASDAQ	VTHR	Thu, Dec 22, 2022	171.97	171.97	168.19	170.97
3065	NASDAQ	VTHR	Wed, Dec 21, 2022	171.97	173.67	171.81	173.06
3064	NASDAQ	VTHR	Tue, Dec 20, 2022	170.16	171.41	169.63	170.86
3063	NASDAQ	VTHR	Mon, Dec 19, 2022	172.17	172.18	169.63	170.37
3062	NASDAQ	VTHR	Fri, Dec 16, 2022	172.59	173.24	170.95	172.19
3061	NASDAQ	VTHR	Thu, Dec 15, 2022	176.22	176.22	173.37	174.23
3060	NASDAQ	VTHR	Wed, Dec 14, 2022	179.93	181.74	178.44	179.40
3059	NASDAQ	VTHR	Tue, Dec 13, 2022	183.70	184.01	179.06	180.06
3058	NASDAQ	VTHR	Mon, Dec 12, 2022	176.77	179.06	176.47	179.06
3057	NASDAQ	VTHR	Fri, Dec 9, 2022	177.23	178.21	176.34	176.52
3056	NASDAQ	VTHR	Thu, Dec 8, 2022	177.99	178.19	177.12	177.52
3055	NASDAQ	VTHR	Wed, Dec 7, 2022	176.58	177.20	175.88	176.50
3054	NASDAQ	VTHR	Tue, Dec 6, 2022	179.30	179.36	175.83	176.67
3053	NASDAQ	VTHR	Mon, Dec 5, 2022	181.87	181.87	178.93	179.50
3052	NASDAQ	VTHR	Fri, Dec 2, 2022	180.79	183.15	180.79	182.69
3051	NASDAQ	VTHR	Thu, Dec 1, 2022	183.79	183.86	182.25	183.26
3050	NASDAQ	VTHR	Wed, Nov 30, 2022	177.45	183.23	177.07	183.23
3049	NASDAQ	VTHR	Tue, Nov 29, 2022	177.79	178.53	176.96	177.75
3048	NASDAQ	VTHR	Mon, Nov 28, 2022	179.11	179.60	177.47	177.98
3047	NASDAQ	VTHR	Fri, Nov 25, 2022	180.56	180.96	180.49	180.89
3046	NASDAQ	VTHR	Wed, Nov 23, 2022	179.30	180.89	179.30	180.46
3045	NASDAQ	VTHR	Tue, Nov 22, 2022	177.94	179.65	177.94	179.65
3044	NASDAQ	VTHR	Mon, Nov 21, 2022	177.68	177.68	176.40	177.31
3043	NASDAQ	VTHR	Fri, Nov 18, 2022	178.37	178.37	176.80	178.03
3042	NASDAQ	VTHR	Thu, Nov 17, 2022	175.46	177.47	175.46	176.96
3041	NASDAQ	VTHR	Wed, Nov 16, 2022	178.75	178.75	177.70	178.04
3040	NASDAQ	VTHR	Tue, Nov 15, 2022	180.94	181.00	178.39	179.48
3039	NASDAQ	VTHR	Mon, Nov 14, 2022	178.85	180.16	177.74	177.95
3038	NASDAQ	VTHR	Fri, Nov 11, 2022	178.02	179.96	177.63	179.49
3037	NASDAQ	VTHR	Thu, Nov 10, 2022	174.00	177.67	173.65	177.58
3036	NASDAQ	VTHR	Wed, Nov 9, 2022	170.67	171.19	168.05	168.30
3035	NASDAQ	VTHR	Tue, Nov 8, 2022	171.76	173.21	170.02	171.85
3034	NASDAQ	VTHR	Mon, Nov 7, 2022	170.26	171.02	168.92	170.96
3033	NASDAQ	VTHR	Fri, Nov 4, 2022	170.16	170.30	166.96	169.47
3032	NASDAQ	VTHR	Thu, Nov 3, 2022	167.09	168.67	166.51	167.45
3031	NASDAQ	VTHR	Wed, Nov 2, 2022	173.33	174.70	168.98	169.07
3030	NASDAQ	VTHR	Tue, Nov 1, 2022	175.86	176.06	172.94	173.53
3029	NASDAQ	VTHR	Mon, Oct 31, 2022	174.21	174.96	173.61	174.18
3028	NASDAQ	VTHR	Fri, Oct 28, 2022	171.22	175.26	171.21	175.22
3027	NASDAQ	VTHR	Thu, Oct 27, 2022	172.51	173.21	171.24	171.33
3026	NASDAQ	VTHR	Wed, Oct 26, 2022	171.71	174.48	171.71	172.14
3025	NASDAQ	VTHR	Tue, Oct 25, 2022	170.47	173.27	170.17	173.13
3024	NASDAQ	VTHR	Mon, Oct 24, 2022	168.83	170.54	167.70	170.14
3023	NASDAQ	VTHR	Fri, Oct 21, 2022	164.17	168.48	163.67	168.35
3022	NASDAQ	VTHR	Thu, Oct 20, 2022	165.74	167.34	164.03	164.42
3021	NASDAQ	VTHR	Wed, Oct 19, 2022	166.31	167.15	164.71	165.78
3020	NASDAQ	VTHR	Tue, Oct 18, 2022	168.98	169.12	165.87	167.49
3019	NASDAQ	VTHR	Mon, Oct 17, 2022	163.83	165.69	163.83	165.28
3018	NASDAQ	VTHR	Fri, Oct 14, 2022	166.43	166.43	160.89	161.19
3017	NASDAQ	VTHR	Thu, Oct 13, 2022	157.39	165.52	157.03	164.97
3016	NASDAQ	VTHR	Wed, Oct 12, 2022	161.32	161.90	160.75	160.90
3015	NASDAQ	VTHR	Tue, Oct 11, 2022	161.34	163.40	160.36	161.24
3014	NASDAQ	VTHR	Mon, Oct 10, 2022	164.08	164.08	161.37	162.34
3013	NASDAQ	VTHR	Fri, Oct 7, 2022	166.38	166.38	162.99	163.47
3012	NASDAQ	VTHR	Thu, Oct 6, 2022	170.16	170.16	168.20	168.56
3011	NASDAQ	VTHR	Wed, Oct 5, 2022	168.23	170.50	167.38	170.04
3010	NASDAQ	VTHR	Tue, Oct 4, 2022	167.87	170.43	167.87	170.43
3009	NASDAQ	VTHR	Mon, Oct 3, 2022	162.92	165.89	161.89	164.82
3008	NASDAQ	VTHR	Fri, Sep 30, 2022	162.84	164.68	160.89	161.10
3007	NASDAQ	VTHR	Thu, Sep 29, 2022	163.29	163.79	161.91	163.28
3006	NASDAQ	VTHR	Wed, Sep 28, 2022	163.56	167.30	163.32	166.73
3005	NASDAQ	VTHR	Tue, Sep 27, 2022	165.87	166.36	162.79	163.65
3004	NASDAQ	VTHR	Mon, Sep 26, 2022	165.99	166.68	163.48	164.12
3003	NASDAQ	VTHR	Fri, Sep 23, 2022	166.77	166.77	163.98	165.65
3002	NASDAQ	VTHR	Thu, Sep 22, 2022	170.08	170.28	168.62	168.78
3001	NASDAQ	VTHR	Wed, Sep 21, 2022	174.41	175.42	170.45	170.78
3000	NASDAQ	VTHR	Tue, Sep 20, 2022	173.49	174.56	172.41	173.81
2999	NASDAQ	VTHR	Mon, Sep 19, 2022	172.84	175.79	172.84	175.70
2998	NASDAQ	VTHR	Fri, Sep 16, 2022	174.10	174.65	172.88	174.50
2997	NASDAQ	VTHR	Thu, Sep 15, 2022	177.35	178.27	175.92	176.08
2996	NASDAQ	VTHR	Wed, Sep 14, 2022	177.88	178.32	176.62	177.91
2995	NASDAQ	VTHR	Tue, Sep 13, 2022	181.26	181.26	176.90	177.28
2994	NASDAQ	VTHR	Mon, Sep 12, 2022	184.20	185.65	184.20	185.30
2993	NASDAQ	VTHR	Fri, Sep 9, 2022	181.63	183.52	181.63	183.28
2992	NASDAQ	VTHR	Thu, Sep 8, 2022	177.57	180.23	177.30	180.08
2991	NASDAQ	VTHR	Wed, Sep 7, 2022	175.43	179.16	175.43	179.06
2990	NASDAQ	VTHR	Tue, Sep 6, 2022	176.71	176.98	174.68	175.43
2989	NASDAQ	VTHR	Fri, Sep 2, 2022	179.89	180.43	175.60	176.25
2988	NASDAQ	VTHR	Thu, Sep 1, 2022	176.80	178.24	175.29	177.99
2987	NASDAQ	VTHR	Wed, Aug 31, 2022	180.01	180.39	178.12	178.21
2986	NASDAQ	VTHR	Tue, Aug 30, 2022	182.09	182.09	178.43	179.16
2985	NASDAQ	VTHR	Mon, Aug 29, 2022	181.33	182.63	181.01	181.56
2984	NASDAQ	VTHR	Fri, Aug 26, 2022	189.09	189.09	182.73	182.87
2983	NASDAQ	VTHR	Thu, Aug 25, 2022	187.04	188.94	187.04	188.83
2982	NASDAQ	VTHR	Wed, Aug 24, 2022	185.57	186.99	185.17	186.46
2981	NASDAQ	VTHR	Tue, Aug 23, 2022	185.89	187.08	185.53	185.70
2980	NASDAQ	VTHR	Mon, Aug 22, 2022	187.59	187.69	185.59	185.94
2979	NASDAQ	VTHR	Fri, Aug 19, 2022	191.25	191.25	189.81	189.92
2978	NASDAQ	VTHR	Thu, Aug 18, 2022	192.14	193.03	191.73	192.91
2977	NASDAQ	VTHR	Wed, Aug 17, 2022	191.88	193.11	191.29	192.05
2976	NASDAQ	VTHR	Tue, Aug 16, 2022	193.39	194.65	192.44	193.98
2975	NASDAQ	VTHR	Mon, Aug 15, 2022	192.03	193.63	191.98	193.63
2974	NASDAQ	VTHR	Fri, Aug 12, 2022	190.72	192.80	190.21	192.51
2973	NASDAQ	VTHR	Thu, Aug 11, 2022	191.01	191.45	189.23	189.56
2972	NASDAQ	VTHR	Wed, Aug 10, 2022	188.19	189.52	188.19	189.51
2971	NASDAQ	VTHR	Tue, Aug 9, 2022	185.74	185.76	184.83	185.25
2970	NASDAQ	VTHR	Mon, Aug 8, 2022	186.99	188.45	186.00	186.22
2969	NASDAQ	VTHR	Fri, Aug 5, 2022	184.40	186.52	184.40	186.36
2968	NASDAQ	VTHR	Thu, Aug 4, 2022	186.63	186.63	185.94	186.34
2967	NASDAQ	VTHR	Wed, Aug 3, 2022	184.99	186.93	184.99	186.61
2966	NASDAQ	VTHR	Tue, Aug 2, 2022	183.61	185.57	183.08	183.68
2965	NASDAQ	VTHR	Mon, Aug 1, 2022	184.09	185.31	183.62	184.70
2964	NASDAQ	VTHR	Fri, Jul 29, 2022	183.27	185.19	182.72	185.12
2963	NASDAQ	VTHR	Thu, Jul 28, 2022	180.49	182.64	178.88	182.45
2962	NASDAQ	VTHR	Wed, Jul 27, 2022	177.37	180.74	177.37	180.31
2961	NASDAQ	VTHR	Tue, Jul 26, 2022	176.46	176.46	175.16	175.54
2960	NASDAQ	VTHR	Mon, Jul 25, 2022	177.73	177.97	176.75	177.50
2959	NASDAQ	VTHR	Fri, Jul 22, 2022	179.19	179.60	176.46	177.33
2958	NASDAQ	VTHR	Thu, Jul 21, 2022	177.39	179.34	176.88	179.16
2957	NASDAQ	VTHR	Wed, Jul 20, 2022	176.12	178.15	175.81	177.76
2956	NASDAQ	VTHR	Tue, Jul 19, 2022	173.30	176.32	173.30	175.97
2955	NASDAQ	VTHR	Mon, Jul 18, 2022	174.26	174.36	171.10	171.27
2954	NASDAQ	VTHR	Fri, Jul 15, 2022	171.31	172.58	171.01	172.34
2953	NASDAQ	VTHR	Thu, Jul 14, 2022	167.81	169.39	166.60	169.24
2952	NASDAQ	VTHR	Wed, Jul 13, 2022	168.49	171.12	168.13	170.21
2951	NASDAQ	VTHR	Tue, Jul 12, 2022	171.84	173.11	170.05	170.72
2950	NASDAQ	VTHR	Mon, Jul 11, 2022	173.49	173.49	171.93	172.12
2949	NASDAQ	VTHR	Fri, Jul 8, 2022	173.87	175.44	173.19	174.51
2948	NASDAQ	VTHR	Thu, Jul 7, 2022	173.05	174.95	173.05	174.85
2947	NASDAQ	VTHR	Wed, Jul 6, 2022	171.91	173.03	170.71	171.89
2946	NASDAQ	VTHR	Tue, Jul 5, 2022	168.30	171.45	167.23	171.37
2945	NASDAQ	VTHR	Fri, Jul 1, 2022	168.97	171.16	167.86	170.88
2944	NASDAQ	VTHR	Thu, Jun 30, 2022	168.44	170.34	166.96	169.00
2943	NASDAQ	VTHR	Wed, Jun 29, 2022	170.28	171.13	169.94	170.72
2942	NASDAQ	VTHR	Tue, Jun 28, 2022	176.04	177.16	171.60	171.77
2941	NASDAQ	VTHR	Mon, Jun 27, 2022	176.35	176.35	174.71	175.05
2940	NASDAQ	VTHR	Fri, Jun 24, 2022	171.70	175.64	171.70	175.53
2939	NASDAQ	VTHR	Thu, Jun 23, 2022	169.47	170.47	167.93	170.36
2938	NASDAQ	VTHR	Wed, Jun 22, 2022	166.91	170.29	166.91	168.62
2937	NASDAQ	VTHR	Tue, Jun 21, 2022	167.36	169.31	167.36	168.62
2936	NASDAQ	VTHR	Fri, Jun 17, 2022	164.14	166.11	163.36	164.91
2935	NASDAQ	VTHR	Thu, Jun 16, 2022	166.39	166.39	163.09	164.05
2934	NASDAQ	VTHR	Wed, Jun 15, 2022	169.66	170.82	167.88	170.19
2933	NASDAQ	VTHR	Tue, Jun 14, 2022	169.03	169.41	166.33	167.62
2932	NASDAQ	VTHR	Mon, Jun 13, 2022	170.61	171.27	167.43	167.91
2931	NASDAQ	VTHR	Fri, Jun 10, 2022	177.21	177.52	175.21	175.36
2930	NASDAQ	VTHR	Thu, Jun 9, 2022	183.97	184.75	180.55	180.70
2929	NASDAQ	VTHR	Wed, Jun 8, 2022	185.91	187.02	184.54	185.04
2928	NASDAQ	VTHR	Tue, Jun 7, 2022	183.33	187.13	183.33	187.13
2927	NASDAQ	VTHR	Mon, Jun 6, 2022	186.34	187.05	184.60	185.20
2926	NASDAQ	VTHR	Fri, Jun 3, 2022	185.30	185.30	184.19	184.55
2925	NASDAQ	VTHR	Thu, Jun 2, 2022	183.86	187.50	183.08	187.50
2924	NASDAQ	VTHR	Wed, Jun 1, 2022	186.24	186.24	182.73	183.84
2923	NASDAQ	VTHR	Tue, May 31, 2022	185.85	186.40	184.02	185.07
2922	NASDAQ	VTHR	Fri, May 27, 2022	183.31	186.46	183.31	186.46
2921	NASDAQ	VTHR	Thu, May 26, 2022	179.06	182.68	179.06	182.09
2920	NASDAQ	VTHR	Wed, May 25, 2022	175.89	178.98	175.89	178.35
2919	NASDAQ	VTHR	Tue, May 24, 2022	176.21	176.85	173.58	176.24
2918	NASDAQ	VTHR	Mon, May 23, 2022	176.62	178.15	175.41	177.98
2917	NASDAQ	VTHR	Fri, May 20, 2022	176.50	176.86	171.02	174.92
2916	NASDAQ	VTHR	Thu, May 19, 2022	175.81	176.94	174.02	175.17
2915	NASDAQ	VTHR	Wed, May 18, 2022	180.68	180.68	175.65	175.81
2914	NASDAQ	VTHR	Tue, May 17, 2022	182.00	182.99	180.92	182.90
2913	NASDAQ	VTHR	Mon, May 16, 2022	179.75	180.84	178.50	179.25
2912	NASDAQ	VTHR	Fri, May 13, 2022	177.79	180.70	177.78	179.94
2911	NASDAQ	VTHR	Thu, May 12, 2022	173.92	176.13	172.40	175.41
2910	NASDAQ	VTHR	Wed, May 11, 2022	178.09	180.41	175.18	175.49
2909	NASDAQ	VTHR	Tue, May 10, 2022	181.11	181.66	176.39	178.48
2908	NASDAQ	VTHR	Mon, May 9, 2022	181.66	181.80	177.52	178.00
2907	NASDAQ	VTHR	Fri, May 6, 2022	185.15	186.11	182.00	184.58
2906	NASDAQ	VTHR	Thu, May 5, 2022	191.27	191.27	184.13	185.90
2905	NASDAQ	VTHR	Wed, May 4, 2022	187.86	193.23	186.32	192.82
2904	NASDAQ	VTHR	Tue, May 3, 2022	186.92	188.45	186.80	187.60
2903	NASDAQ	VTHR	Mon, May 2, 2022	185.30	187.01	182.77	186.55
2902	NASDAQ	VTHR	Fri, Apr 29, 2022	190.65	191.69	185.17	185.40
2901	NASDAQ	VTHR	Thu, Apr 28, 2022	189.85	193.03	188.08	192.20
2900	NASDAQ	VTHR	Wed, Apr 27, 2022	187.98	190.14	186.99	187.83
2899	NASDAQ	VTHR	Tue, Apr 26, 2022	191.14	191.14	187.50	187.54
2898	NASDAQ	VTHR	Mon, Apr 25, 2022	190.57	193.08	189.33	193.02
2897	NASDAQ	VTHR	Fri, Apr 22, 2022	197.03	197.03	191.93	192.02
2896	NASDAQ	VTHR	Thu, Apr 21, 2022	202.69	202.69	196.92	197.20
2895	NASDAQ	VTHR	Wed, Apr 20, 2022	201.61	201.61	200.29	200.63
2894	NASDAQ	VTHR	Tue, Apr 19, 2022	196.69	200.92	196.69	200.78
2893	NASDAQ	VTHR	Mon, Apr 18, 2022	197.03	198.01	196.22	197.07
2892	NASDAQ	VTHR	Thu, Apr 14, 2022	200.54	200.54	197.46	197.47
2891	NASDAQ	VTHR	Wed, Apr 13, 2022	197.40	200.24	197.37	200.06
2890	NASDAQ	VTHR	Tue, Apr 12, 2022	199.58	200.39	196.93	197.46
2889	NASDAQ	VTHR	Mon, Apr 11, 2022	199.29	199.93	197.86	198.06
2888	NASDAQ	VTHR	Fri, Apr 8, 2022	201.52	202.50	200.61	201.06
2887	NASDAQ	VTHR	Thu, Apr 7, 2022	200.66	202.70	199.69	201.69
2886	NASDAQ	VTHR	Wed, Apr 6, 2022	200.97	201.75	200.00	201.13
2885	NASDAQ	VTHR	Tue, Apr 5, 2022	205.93	206.14	203.16	203.23
2884	NASDAQ	VTHR	Mon, Apr 4, 2022	204.77	206.19	204.61	206.15
2883	NASDAQ	VTHR	Fri, Apr 1, 2022	204.24	204.70	202.89	204.59
2882	NASDAQ	VTHR	Thu, Mar 31, 2022	206.49	206.97	203.92	203.93
2881	NASDAQ	VTHR	Wed, Mar 30, 2022	208.22	208.30	206.23	206.87
2880	NASDAQ	VTHR	Tue, Mar 29, 2022	207.73	208.52	206.77	208.47
2879	NASDAQ	VTHR	Mon, Mar 28, 2022	203.92	205.72	202.87	205.72
2878	NASDAQ	VTHR	Fri, Mar 25, 2022	203.35	204.34	202.44	204.21
2877	NASDAQ	VTHR	Thu, Mar 24, 2022	201.14	203.33	200.95	203.27
2876	NASDAQ	VTHR	Wed, Mar 23, 2022	202.59	203.22	200.98	201.21
2875	NASDAQ	VTHR	Tue, Mar 22, 2022	202.54	204.15	202.54	203.59
2874	NASDAQ	VTHR	Mon, Mar 21, 2022	201.57	202.50	200.10	201.19
2873	NASDAQ	VTHR	Fri, Mar 18, 2022	198.57	201.66	198.40	201.53
2872	NASDAQ	VTHR	Thu, Mar 17, 2022	196.04	199.05	195.59	198.99
2871	NASDAQ	VTHR	Wed, Mar 16, 2022	193.70	196.47	191.79	196.40
2870	NASDAQ	VTHR	Tue, Mar 15, 2022	189.00	191.99	188.58	191.66
2869	NASDAQ	VTHR	Mon, Mar 14, 2022	190.04	191.13	187.36	187.80
2868	NASDAQ	VTHR	Fri, Mar 11, 2022	193.91	193.91	189.52	189.52
2867	NASDAQ	VTHR	Thu, Mar 10, 2022	191.10	192.59	190.00	192.39
2866	NASDAQ	VTHR	Wed, Mar 9, 2022	192.15	193.79	191.35	193.06
2865	NASDAQ	VTHR	Tue, Mar 8, 2022	189.32	192.77	187.46	188.03
2864	NASDAQ	VTHR	Mon, Mar 7, 2022	195.12	195.12	189.07	189.13
2863	NASDAQ	VTHR	Fri, Mar 4, 2022	195.14	195.62	193.62	195.14
2862	NASDAQ	VTHR	Thu, Mar 3, 2022	199.34	199.53	196.18	196.82
2861	NASDAQ	VTHR	Wed, Mar 2, 2022	196.14	199.14	195.80	198.75
2860	NASDAQ	VTHR	Tue, Mar 1, 2022	197.84	197.84	193.53	194.65
2859	NASDAQ	VTHR	Mon, Feb 28, 2022	196.29	198.36	195.41	197.61
2858	NASDAQ	VTHR	Fri, Feb 25, 2022	194.25	198.13	193.69	198.13
2857	NASDAQ	VTHR	Thu, Feb 24, 2022	184.77	193.95	184.58	193.69
2856	NASDAQ	VTHR	Wed, Feb 23, 2022	195.31	195.54	190.34	190.34
2855	NASDAQ	VTHR	Tue, Feb 22, 2022	195.13	196.32	192.59	194.78
2854	NASDAQ	VTHR	Fri, Feb 18, 2022	197.98	198.36	195.49	196.41
2853	NASDAQ	VTHR	Thu, Feb 17, 2022	201.03	201.03	197.76	197.88
2852	NASDAQ	VTHR	Wed, Feb 16, 2022	200.43	202.83	200.41	202.24
2851	NASDAQ	VTHR	Tue, Feb 15, 2022	201.13	202.15	201.13	202.15
2850	NASDAQ	VTHR	Mon, Feb 14, 2022	198.61	199.63	196.95	198.40
2849	NASDAQ	VTHR	Fri, Feb 11, 2022	203.63	203.99	199.09	200.07
2848	NASDAQ	VTHR	Thu, Feb 10, 2022	204.05	207.15	202.62	203.23
2847	NASDAQ	VTHR	Wed, Feb 9, 2022	205.80	206.67	205.62	206.65
2846	NASDAQ	VTHR	Tue, Feb 8, 2022	201.74	203.58	201.51	203.58
2845	NASDAQ	VTHR	Mon, Feb 7, 2022	202.93	203.26	201.36	201.56
2844	NASDAQ	VTHR	Fri, Feb 4, 2022	201.25	203.06	199.94	202.43
2843	NASDAQ	VTHR	Thu, Feb 3, 2022	203.34	203.75	200.72	200.83
2842	NASDAQ	VTHR	Wed, Feb 2, 2022	206.04	206.05	204.09	205.79
2841	NASDAQ	VTHR	Tue, Feb 1, 2022	203.89	204.31	202.20	204.30
2840	NASDAQ	VTHR	Mon, Jan 31, 2022	198.92	203.05	198.92	203.05
2839	NASDAQ	VTHR	Fri, Jan 28, 2022	194.20	198.76	192.77	198.76
2838	NASDAQ	VTHR	Thu, Jan 27, 2022	197.96	198.29	193.84	194.18
2837	NASDAQ	VTHR	Wed, Jan 26, 2022	198.78	200.33	195.00	195.57
2836	NASDAQ	VTHR	Tue, Jan 25, 2022	196.32	198.37	192.94	195.86
2835	NASDAQ	VTHR	Mon, Jan 24, 2022	194.65	199.23	190.00	199.01
2834	NASDAQ	VTHR	Fri, Jan 21, 2022	200.74	201.40	197.61	197.61
2833	NASDAQ	VTHR	Thu, Jan 20, 2022	204.30	206.66	201.56	201.57
2832	NASDAQ	VTHR	Wed, Jan 19, 2022	206.51	207.72	203.78	203.84
2831	NASDAQ	VTHR	Tue, Jan 18, 2022	207.50	207.57	205.70	205.92
2830	NASDAQ	VTHR	Fri, Jan 14, 2022	208.39	210.30	207.86	210.11
2829	NASDAQ	VTHR	Thu, Jan 13, 2022	214.14	214.14	209.96	210.10
2828	NASDAQ	VTHR	Wed, Jan 12, 2022	214.05	214.28	212.31	213.10
2827	NASDAQ	VTHR	Tue, Jan 11, 2022	210.94	212.78	209.61	212.78
2826	NASDAQ	VTHR	Mon, Jan 10, 2022	208.98	210.70	206.63	210.70
2825	NASDAQ	VTHR	Fri, Jan 7, 2022	212.55	212.64	211.08	211.08
2824	NASDAQ	VTHR	Thu, Jan 6, 2022	211.63	213.11	211.17	212.06
2823	NASDAQ	VTHR	Wed, Jan 5, 2022	216.40	216.73	212.07	212.07
2822	NASDAQ	VTHR	Tue, Jan 4, 2022	218.11	218.11	216.31	216.78
2821	NASDAQ	VTHR	Mon, Jan 3, 2022	216.86	216.93	215.63	216.93
2820	NASDAQ	VTHR	Fri, Dec 31, 2021	216.71	216.71	215.72	215.72
2819	NASDAQ	VTHR	Thu, Dec 30, 2021	217.36	217.64	216.24	216.45
2818	NASDAQ	VTHR	Wed, Dec 29, 2021	217.00	217.16	215.94	216.64
2817	NASDAQ	VTHR	Tue, Dec 28, 2021	216.93	217.76	216.44	216.48
2816	NASDAQ	VTHR	Mon, Dec 27, 2021	215.14	216.93	215.10	216.93
2815	NASDAQ	VTHR	Thu, Dec 23, 2021	213.68	214.81	213.68	214.22
2814	NASDAQ	VTHR	Wed, Dec 22, 2021	210.90	212.68	210.90	212.68
2813	NASDAQ	VTHR	Tue, Dec 21, 2021	208.79	210.66	207.80	210.44
2812	NASDAQ	VTHR	Mon, Dec 20, 2021	206.68	206.68	204.90	206.67
2811	NASDAQ	VTHR	Fri, Dec 17, 2021	208.51	210.81	208.00	209.57
2810	NASDAQ	VTHR	Thu, Dec 16, 2021	213.50	213.69	210.25	210.82
2809	NASDAQ	VTHR	Wed, Dec 15, 2021	209.67	213.54	208.97	213.51
2808	NASDAQ	VTHR	Tue, Dec 14, 2021	209.70	210.68	209.07	210.24
2807	NASDAQ	VTHR	Mon, Dec 13, 2021	213.93	213.93	211.73	211.73
2806	NASDAQ	VTHR	Fri, Dec 10, 2021	213.96	213.96	212.59	213.87
2805	NASDAQ	VTHR	Thu, Dec 9, 2021	213.50	213.51	212.34	212.34
2804	NASDAQ	VTHR	Wed, Dec 8, 2021	214.00	214.46	213.11	214.36
2803	NASDAQ	VTHR	Tue, Dec 7, 2021	212.30	213.95	212.28	213.33
2802	NASDAQ	VTHR	Mon, Dec 6, 2021	207.77	209.65	207.20	208.92
2801	NASDAQ	VTHR	Fri, Dec 3, 2021	209.74	209.74	204.67	206.38
2800	NASDAQ	VTHR	Thu, Dec 2, 2021	205.66	209.40	205.66	208.36
2799	NASDAQ	VTHR	Wed, Dec 1, 2021	211.58	212.11	205.21	205.21
2798	NASDAQ	VTHR	Tue, Nov 30, 2021	211.74	211.74	208.36	208.79
2797	NASDAQ	VTHR	Mon, Nov 29, 2021	212.98	213.25	211.42	212.66
2796	NASDAQ	VTHR	Fri, Nov 26, 2021	211.88	212.34	210.00	210.14
2795	NASDAQ	VTHR	Wed, Nov 24, 2021	213.68	215.17	213.19	215.02
2794	NASDAQ	VTHR	Tue, Nov 23, 2021	214.50	214.89	212.86	214.59
2793	NASDAQ	VTHR	Mon, Nov 22, 2021	215.86	217.17	214.33	214.33
2792	NASDAQ	VTHR	Fri, Nov 19, 2021	216.17	216.20	215.27	215.27
2791	NASDAQ	VTHR	Thu, Nov 18, 2021	216.42	216.42	215.36	215.99
2790	NASDAQ	VTHR	Wed, Nov 17, 2021	216.57	216.57	215.37	215.85
2789	NASDAQ	VTHR	Tue, Nov 16, 2021	215.29	216.89	215.29	216.31
2788	NASDAQ	VTHR	Mon, Nov 15, 2021	216.55	216.55	215.31	215.42
2787	NASDAQ	VTHR	Fri, Nov 12, 2021	215.01	215.71	214.28	215.67
2786	NASDAQ	VTHR	Thu, Nov 11, 2021	214.92	214.92	214.12	214.19
2785	NASDAQ	VTHR	Wed, Nov 10, 2021	214.86	215.53	213.40	213.85
2784	NASDAQ	VTHR	Tue, Nov 9, 2021	217.07	217.07	215.26	215.78
2783	NASDAQ	VTHR	Mon, Nov 8, 2021	216.77	216.98	216.38	216.57
2782	NASDAQ	VTHR	Fri, Nov 5, 2021	216.82	217.13	215.71	216.29
2781	NASDAQ	VTHR	Thu, Nov 4, 2021	215.35	215.84	214.84	215.17
2780	NASDAQ	VTHR	Wed, Nov 3, 2021	213.00	214.69	213.00	214.63
2779	NASDAQ	VTHR	Tue, Nov 2, 2021	213.03	213.21	212.70	213.18
2778	NASDAQ	VTHR	Mon, Nov 1, 2021	212.49	212.57	211.54	212.56
2777	NASDAQ	VTHR	Fri, Oct 29, 2021	210.97	211.70	210.28	211.54
2776	NASDAQ	VTHR	Thu, Oct 28, 2021	209.93	211.24	209.93	211.24
2775	NASDAQ	VTHR	Wed, Oct 27, 2021	210.86	210.86	208.86	208.98
2774	NASDAQ	VTHR	Tue, Oct 26, 2021	211.51	211.63	210.25	210.69
2773	NASDAQ	VTHR	Mon, Oct 25, 2021	209.61	210.62	209.26	210.29
2772	NASDAQ	VTHR	Fri, Oct 22, 2021	209.23	210.00	208.44	209.35
2771	NASDAQ	VTHR	Thu, Oct 21, 2021	209.00	209.69	208.95	209.66
2770	NASDAQ	VTHR	Wed, Oct 20, 2021	208.65	209.09	208.37	208.80
2769	NASDAQ	VTHR	Tue, Oct 19, 2021	207.78	208.11	207.49	208.02
2768	NASDAQ	VTHR	Mon, Oct 18, 2021	205.00	206.52	205.00	206.45
2767	NASDAQ	VTHR	Fri, Oct 15, 2021	206.27	206.28	205.54	205.95
2766	NASDAQ	VTHR	Thu, Oct 14, 2021	203.89	204.73	203.21	204.73
2765	NASDAQ	VTHR	Wed, Oct 13, 2021	201.34	201.34	199.77	201.29
2764	NASDAQ	VTHR	Tue, Oct 12, 2021	201.59	201.59	200.07	200.54
2763	NASDAQ	VTHR	Mon, Oct 11, 2021	202.12	203.07	200.62	200.62
2762	NASDAQ	VTHR	Fri, Oct 8, 2021	203.53	203.53	201.84	201.94
2761	NASDAQ	VTHR	Thu, Oct 7, 2021	202.42	203.83	202.40	202.53
2760	NASDAQ	VTHR	Wed, Oct 6, 2021	198.11	200.59	198.02	200.58
2759	NASDAQ	VTHR	Tue, Oct 5, 2021	198.80	200.68	198.30	199.87
2758	NASDAQ	VTHR	Mon, Oct 4, 2021	200.72	200.72	197.00	197.78
2757	NASDAQ	VTHR	Fri, Oct 1, 2021	199.25	201.10	197.36	200.59
2756	NASDAQ	VTHR	Thu, Sep 30, 2021	201.30	201.30	198.07	198.07
2755	NASDAQ	VTHR	Wed, Sep 29, 2021	201.22	201.44	200.23	200.29
2754	NASDAQ	VTHR	Tue, Sep 28, 2021	203.32	203.38	200.78	200.87
2753	NASDAQ	VTHR	Mon, Sep 27, 2021	205.36	205.69	204.84	205.44
2752	NASDAQ	VTHR	Fri, Sep 24, 2021	204.64	205.71	204.64	205.59
2751	NASDAQ	VTHR	Thu, Sep 23, 2021	203.96	205.96	203.96	205.46
2750	NASDAQ	VTHR	Wed, Sep 22, 2021	201.08	203.92	201.08	202.91
2749	NASDAQ	VTHR	Tue, Sep 21, 2021	202.37	202.39	200.54	200.95
2748	NASDAQ	VTHR	Mon, Sep 20, 2021	200.70	201.85	198.73	200.96
2747	NASDAQ	VTHR	Fri, Sep 17, 2021	206.00	206.00	204.25	204.66
2746	NASDAQ	VTHR	Thu, Sep 16, 2021	206.47	206.52	205.13	206.08
2745	NASDAQ	VTHR	Wed, Sep 15, 2021	205.05	206.52	204.16	206.26
2744	NASDAQ	VTHR	Tue, Sep 14, 2021	205.73	206.38	204.11	204.22
2743	NASDAQ	VTHR	Mon, Sep 13, 2021	206.96	206.96	204.71	205.60
2742	NASDAQ	VTHR	Fri, Sep 10, 2021	208.02	208.16	205.18	205.18
2741	NASDAQ	VTHR	Thu, Sep 9, 2021	207.77	208.42	206.82	206.82
2740	NASDAQ	VTHR	Wed, Sep 8, 2021	207.83	207.88	206.87	207.64
2739	NASDAQ	VTHR	Tue, Sep 7, 2021	209.21	209.21	208.13	208.14
2738	NASDAQ	VTHR	Fri, Sep 3, 2021	209.08	209.11	208.59	208.98
2737	NASDAQ	VTHR	Thu, Sep 2, 2021	209.27	209.29	208.62	209.13
2736	NASDAQ	VTHR	Wed, Sep 1, 2021	208.50	209.16	208.47	208.54
2735	NASDAQ	VTHR	Tue, Aug 31, 2021	208.63	208.63	208.04	208.22
2734	NASDAQ	VTHR	Mon, Aug 30, 2021	208.78	208.84	208.00	208.64
2733	NASDAQ	VTHR	Fri, Aug 27, 2021	205.83	207.94	205.83	207.71
2732	NASDAQ	VTHR	Thu, Aug 26, 2021	206.36	206.72	205.40	205.40
2731	NASDAQ	VTHR	Wed, Aug 25, 2021	206.12	207.02	206.12	206.76
2730	NASDAQ	VTHR	Tue, Aug 24, 2021	206.29	206.45	205.99	206.15
2729	NASDAQ	VTHR	Mon, Aug 23, 2021	204.80	205.77	204.80	205.46
2728	NASDAQ	VTHR	Fri, Aug 20, 2021	202.11	203.59	202.11	203.55
2727	NASDAQ	VTHR	Thu, Aug 19, 2021	200.55	202.20	200.55	201.66
2726	NASDAQ	VTHR	Wed, Aug 18, 2021	203.68	203.81	201.96	201.96
2725	NASDAQ	VTHR	Tue, Aug 17, 2021	203.87	204.20	202.49	203.89
2724	NASDAQ	VTHR	Mon, Aug 16, 2021	204.92	205.26	203.95	205.25
2723	NASDAQ	VTHR	Fri, Aug 13, 2021	205.71	205.71	205.09	205.29
2722	NASDAQ	VTHR	Thu, Aug 12, 2021	204.93	205.15	204.20	205.02
2721	NASDAQ	VTHR	Wed, Aug 11, 2021	204.94	204.94	204.04	204.61
2720	NASDAQ	VTHR	Tue, Aug 10, 2021	204.01	204.53	204.01	204.08
2719	NASDAQ	VTHR	Mon, Aug 9, 2021	204.52	204.52	203.93	203.98
2718	NASDAQ	VTHR	Fri, Aug 6, 2021	204.88	204.88	204.19	204.25
2717	NASDAQ	VTHR	Thu, Aug 5, 2021	203.11	204.03	203.10	204.03
2716	NASDAQ	VTHR	Wed, Aug 4, 2021	203.13	203.13	202.66	202.70
2715	NASDAQ	VTHR	Tue, Aug 3, 2021	202.82	203.45	201.32	203.45
2714	NASDAQ	VTHR	Mon, Aug 2, 2021	202.90	203.50	201.89	202.01
2713	NASDAQ	VTHR	Fri, Jul 30, 2021	202.69	202.95	202.36	202.38
2712	NASDAQ	VTHR	Thu, Jul 29, 2021	203.55	204.19	203.55	203.61
2711	NASDAQ	VTHR	Wed, Jul 28, 2021	203.02	203.29	202.16	202.49
2710	NASDAQ	VTHR	Tue, Jul 27, 2021	203.29	203.29	200.90	202.32
2709	NASDAQ	VTHR	Mon, Jul 26, 2021	203.19	203.44	202.86	203.44
2708	NASDAQ	VTHR	Fri, Jul 23, 2021	202.32	202.97	201.77	202.97
2707	NASDAQ	VTHR	Thu, Jul 22, 2021	201.24	201.24	200.37	201.03
2706	NASDAQ	VTHR	Wed, Jul 21, 2021	199.99	200.88	199.99	200.88
2705	NASDAQ	VTHR	Tue, Jul 20, 2021	196.86	199.77	196.86	199.17
2704	NASDAQ	VTHR	Mon, Jul 19, 2021	196.45	196.45	194.80	195.75
2703	NASDAQ	VTHR	Fri, Jul 16, 2021	201.54	201.54	198.54	198.65
2702	NASDAQ	VTHR	Thu, Jul 15, 2021	200.28	200.56	199.17	200.15
2701	NASDAQ	VTHR	Wed, Jul 14, 2021	202.38	202.38	200.61	200.79
2700	NASDAQ	VTHR	Tue, Jul 13, 2021	202.22	202.22	201.11	201.13
2699	NASDAQ	VTHR	Mon, Jul 12, 2021	202.08	202.30	201.59	202.30
2698	NASDAQ	VTHR	Fri, Jul 9, 2021	199.72	201.72	199.72	201.69
2697	NASDAQ	VTHR	Thu, Jul 8, 2021	198.37	199.67	197.99	199.15
2696	NASDAQ	VTHR	Wed, Jul 7, 2021	201.00	201.15	200.31	201.01
2695	NASDAQ	VTHR	Tue, Jul 6, 2021	201.68	201.68	199.33	200.66
2694	NASDAQ	VTHR	Fri, Jul 2, 2021	200.99	201.15	200.32	201.04
2693	NASDAQ	VTHR	Thu, Jul 1, 2021	199.01	199.97	199.01	199.97
2692	NASDAQ	VTHR	Wed, Jun 30, 2021	199.52	199.52	198.78	199.10
2691	NASDAQ	VTHR	Tue, Jun 29, 2021	199.74	199.74	198.93	198.94
2690	NASDAQ	VTHR	Mon, Jun 28, 2021	198.99	199.54	198.74	199.48
2689	NASDAQ	VTHR	Fri, Jun 25, 2021	199.31	199.31	198.96	199.27
2688	NASDAQ	VTHR	Thu, Jun 24, 2021	198.53	198.63	198.28	198.40
2687	NASDAQ	VTHR	Wed, Jun 23, 2021	196.98	197.75	196.98	197.52
2686	NASDAQ	VTHR	Tue, Jun 22, 2021	196.66	197.50	195.98	197.33
2685	NASDAQ	VTHR	Mon, Jun 21, 2021	193.87	196.24	193.87	196.21
2684	NASDAQ	VTHR	Fri, Jun 18, 2021	194.15	194.54	193.43	193.43
2683	NASDAQ	VTHR	Thu, Jun 17, 2021	196.14	196.36	194.66	195.91
2682	NASDAQ	VTHR	Wed, Jun 16, 2021	197.68	197.68	195.47	196.14
2681	NASDAQ	VTHR	Tue, Jun 15, 2021	198.40	198.40	196.66	196.96
2680	NASDAQ	VTHR	Mon, Jun 14, 2021	197.90	197.90	196.87	197.67
2679	NASDAQ	VTHR	Fri, Jun 11, 2021	197.51	197.51	196.70	197.46
2678	NASDAQ	VTHR	Thu, Jun 10, 2021	197.19	197.19	196.16	196.86
2677	NASDAQ	VTHR	Wed, Jun 9, 2021	197.26	197.26	195.96	195.96
2676	NASDAQ	VTHR	Tue, Jun 8, 2021	197.06	197.06	196.19	196.42
2675	NASDAQ	VTHR	Mon, Jun 7, 2021	196.33	196.33	195.68	196.18
2674	NASDAQ	VTHR	Fri, Jun 4, 2021	195.59	195.82	195.38	195.81
2673	NASDAQ	VTHR	Thu, Jun 3, 2021	194.69	194.69	193.62	194.30
2672	NASDAQ	VTHR	Wed, Jun 2, 2021	195.77	195.77	194.91	195.10
2671	NASDAQ	VTHR	Tue, Jun 1, 2021	195.99	196.00	194.77	195.18
2670	NASDAQ	VTHR	Fri, May 28, 2021	194.84	195.42	194.82	194.82
2669	NASDAQ	VTHR	Thu, May 27, 2021	194.45	195.02	194.45	194.67
2668	NASDAQ	VTHR	Wed, May 26, 2021	194.65	194.65	193.62	194.23
2667	NASDAQ	VTHR	Tue, May 25, 2021	194.76	194.76	193.34	193.54
2666	NASDAQ	VTHR	Mon, May 24, 2021	193.86	194.52	193.38	194.02
2665	NASDAQ	VTHR	Fri, May 21, 2021	193.67	193.67	192.20	192.21
2664	NASDAQ	VTHR	Thu, May 20, 2021	190.45	192.71	190.45	192.33
2663	NASDAQ	VTHR	Wed, May 19, 2021	188.53	190.12	187.77	190.12
2662	NASDAQ	VTHR	Tue, May 18, 2021	191.94	192.72	190.72	190.72
2661	NASDAQ	VTHR	Mon, May 17, 2021	191.87	192.52	191.57	192.12
2660	NASDAQ	VTHR	Fri, May 14, 2021	191.86	193.29	191.86	192.79
2659	NASDAQ	VTHR	Thu, May 13, 2021	188.75	190.56	188.56	189.78
2658	NASDAQ	VTHR	Wed, May 12, 2021	189.91	191.34	187.59	187.71
2657	NASDAQ	VTHR	Tue, May 11, 2021	190.21	192.14	190.00	191.49
2656	NASDAQ	VTHR	Mon, May 10, 2021	196.24	196.24	193.38	193.38
2655	NASDAQ	VTHR	Fri, May 7, 2021	194.99	195.80	194.99	195.64
2654	NASDAQ	VTHR	Thu, May 6, 2021	192.50	193.97	191.77	193.97
2653	NASDAQ	VTHR	Wed, May 5, 2021	193.46	193.52	192.73	192.79
2652	NASDAQ	VTHR	Tue, May 4, 2021	193.75	193.75	191.37	192.38
2651	NASDAQ	VTHR	Mon, May 3, 2021	195.67	195.67	194.23	194.23
2650	NASDAQ	VTHR	Fri, Apr 30, 2021	194.76	194.76	193.85	194.01
2649	NASDAQ	VTHR	Thu, Apr 29, 2021	196.34	196.34	194.09	195.52
2648	NASDAQ	VTHR	Wed, Apr 28, 2021	195.52	195.52	194.55	194.55
2647	NASDAQ	VTHR	Tue, Apr 27, 2021	195.78	195.78	194.42	194.86
2646	NASDAQ	VTHR	Mon, Apr 26, 2021	194.21	195.04	194.21	194.67
2645	NASDAQ	VTHR	Fri, Apr 23, 2021	191.85	194.67	191.85	194.23
2644	NASDAQ	VTHR	Thu, Apr 22, 2021	193.00	193.90	191.38	191.97
2643	NASDAQ	VTHR	Wed, Apr 21, 2021	190.46	193.33	190.46	193.33
2642	NASDAQ	VTHR	Tue, Apr 20, 2021	192.84	192.84	190.56	191.28
2641	NASDAQ	VTHR	Mon, Apr 19, 2021	194.15	194.15	192.55	192.78
2640	NASDAQ	VTHR	Fri, Apr 16, 2021	194.60	194.60	193.65	194.17
2639	NASDAQ	VTHR	Thu, Apr 15, 2021	193.28	193.59	192.55	193.59
2638	NASDAQ	VTHR	Wed, Apr 14, 2021	192.50	192.86	191.26	191.33
2637	NASDAQ	VTHR	Tue, Apr 13, 2021	191.10	192.31	191.10	191.98
2636	NASDAQ	VTHR	Mon, Apr 12, 2021	191.66	191.66	190.90	191.40
2635	NASDAQ	VTHR	Fri, Apr 9, 2021	190.33	191.39	190.01	191.31
2634	NASDAQ	VTHR	Thu, Apr 8, 2021	190.54	190.54	189.47	190.05
2633	NASDAQ	VTHR	Wed, Apr 7, 2021	189.53	189.53	188.77	188.98
2632	NASDAQ	VTHR	Tue, Apr 6, 2021	189.27	189.83	189.05	189.05
2631	NASDAQ	VTHR	Mon, Apr 5, 2021	189.01	189.31	188.29	189.20
2630	NASDAQ	VTHR	Thu, Apr 1, 2021	186.11	186.88	185.84	186.79
2629	NASDAQ	VTHR	Wed, Mar 31, 2021	184.79	185.41	184.50	184.85
2628	NASDAQ	VTHR	Tue, Mar 30, 2021	183.73	183.73	182.56	183.25
2627	NASDAQ	VTHR	Mon, Mar 29, 2021	184.00	184.24	182.76	183.67
2626	NASDAQ	VTHR	Fri, Mar 26, 2021	182.84	183.15	181.73	181.73
2625	NASDAQ	VTHR	Thu, Mar 25, 2021	180.56	182.43	179.02	182.43
2624	NASDAQ	VTHR	Wed, Mar 24, 2021	183.17	183.53	181.57	181.57
2623	NASDAQ	VTHR	Tue, Mar 23, 2021	184.34	184.34	182.90	182.90
2622	NASDAQ	VTHR	Mon, Mar 22, 2021	184.27	184.95	183.42	184.23
2621	NASDAQ	VTHR	Fri, Mar 19, 2021	183.53	183.79	181.84	183.69
2620	NASDAQ	VTHR	Thu, Mar 18, 2021	185.84	185.89	183.00	183.11
2619	NASDAQ	VTHR	Wed, Mar 17, 2021	185.06	186.54	184.54	186.26
2618	NASDAQ	VTHR	Tue, Mar 16, 2021	187.47	187.47	185.43	185.74
2617	NASDAQ	VTHR	Mon, Mar 15, 2021	186.09	186.25	184.39	186.25
2616	NASDAQ	VTHR	Fri, Mar 12, 2021	184.00	185.01	183.77	185.01
2615	NASDAQ	VTHR	Thu, Mar 11, 2021	184.32	185.39	183.81	184.64
2614	NASDAQ	VTHR	Wed, Mar 10, 2021	183.01	183.21	181.99	182.36
2613	NASDAQ	VTHR	Tue, Mar 9, 2021	180.87	182.40	180.30	181.98
2612	NASDAQ	VTHR	Mon, Mar 8, 2021	179.40	181.15	178.58	178.69
2611	NASDAQ	VTHR	Fri, Mar 5, 2021	178.55	178.66	173.99	178.65
2610	NASDAQ	VTHR	Thu, Mar 4, 2021	178.29	179.72	173.76	175.90
2609	NASDAQ	VTHR	Wed, Mar 3, 2021	181.43	181.60	178.78	178.78
2608	NASDAQ	VTHR	Tue, Mar 2, 2021	183.01	183.01	181.37	181.43
2607	NASDAQ	VTHR	Mon, Mar 1, 2021	181.97	183.54	181.97	183.08
2606	NASDAQ	VTHR	Fri, Feb 26, 2021	180.43	180.53	177.76	178.59
2605	NASDAQ	VTHR	Thu, Feb 25, 2021	184.35	184.35	179.00	179.41
2604	NASDAQ	VTHR	Wed, Feb 24, 2021	181.95	184.20	181.55	184.20
2603	NASDAQ	VTHR	Tue, Feb 23, 2021	181.39	182.36	178.50	181.97
2602	NASDAQ	VTHR	Mon, Feb 22, 2021	182.98	183.31	181.99	182.01
2601	NASDAQ	VTHR	Fri, Feb 19, 2021	184.00	184.61	183.60	183.71
2600	NASDAQ	VTHR	Thu, Feb 18, 2021	183.81	183.81	182.42	183.32
2599	NASDAQ	VTHR	Wed, Feb 17, 2021	184.31	184.54	183.25	184.45
2598	NASDAQ	VTHR	Tue, Feb 16, 2021	186.27	186.27	184.69	184.69
2597	NASDAQ	VTHR	Fri, Feb 12, 2021	184.03	185.08	183.69	185.08
2596	NASDAQ	VTHR	Thu, Feb 11, 2021	184.74	184.74	183.00	184.11
2595	NASDAQ	VTHR	Wed, Feb 10, 2021	185.24	185.24	182.83	183.80
2594	NASDAQ	VTHR	Tue, Feb 9, 2021	183.23	184.22	183.23	183.81
2593	NASDAQ	VTHR	Mon, Feb 8, 2021	183.79	183.79	182.83	183.66
2592	NASDAQ	VTHR	Fri, Feb 5, 2021	182.98	182.98	181.48	182.02
2591	NASDAQ	VTHR	Thu, Feb 4, 2021	179.52	181.15	179.52	181.05
2590	NASDAQ	VTHR	Wed, Feb 3, 2021	179.93	179.93	179.05	179.05
2589	NASDAQ	VTHR	Tue, Feb 2, 2021	178.55	179.40	178.12	178.92
2588	NASDAQ	VTHR	Mon, Feb 1, 2021	175.44	176.60	174.35	176.45
2587	NASDAQ	VTHR	Fri, Jan 29, 2021	176.30	176.30	172.68	173.16
2586	NASDAQ	VTHR	Thu, Jan 28, 2021	175.80	178.45	175.80	176.68
2585	NASDAQ	VTHR	Wed, Jan 27, 2021	178.07	178.07	173.97	174.79
2584	NASDAQ	VTHR	Tue, Jan 26, 2021	180.21	180.23	179.34	179.34
2583	NASDAQ	VTHR	Mon, Jan 25, 2021	180.02	180.37	178.28	179.92
2582	NASDAQ	VTHR	Fri, Jan 22, 2021	179.57	179.80	178.90	179.65
2581	NASDAQ	VTHR	Thu, Jan 21, 2021	180.91	180.91	179.55	179.91
2580	NASDAQ	VTHR	Wed, Jan 20, 2021	179.06	180.25	179.06	180.04
2579	NASDAQ	VTHR	Tue, Jan 19, 2021	177.51	177.86	177.08	177.66
2578	NASDAQ	VTHR	Fri, Jan 15, 2021	176.90	177.03	175.69	176.29
2577	NASDAQ	VTHR	Thu, Jan 14, 2021	178.35	178.62	177.55	177.63
2576	NASDAQ	VTHR	Wed, Jan 13, 2021	177.79	178.28	177.20	177.85
2575	NASDAQ	VTHR	Tue, Jan 12, 2021	177.31	177.84	176.42	177.77
2574	NASDAQ	VTHR	Mon, Jan 11, 2021	177.03	177.89	176.43	177.09
2573	NASDAQ	VTHR	Fri, Jan 8, 2021	178.16	178.23	176.58	178.15
2572	NASDAQ	VTHR	Thu, Jan 7, 2021	175.99	177.43	175.72	177.18
2571	NASDAQ	VTHR	Wed, Jan 6, 2021	171.83	175.98	171.83	174.35
2570	NASDAQ	VTHR	Tue, Jan 5, 2021	171.22	173.31	171.22	172.84
2569	NASDAQ	VTHR	Mon, Jan 4, 2021	174.49	174.49	169.93	171.52
2568	NASDAQ	VTHR	Thu, Dec 31, 2020	173.00	174.12	172.83	174.08
2567	NASDAQ	VTHR	Wed, Dec 30, 2020	173.34	173.66	173.00	173.16
2566	NASDAQ	VTHR	Tue, Dec 29, 2020	173.85	173.85	172.47	172.72
2565	NASDAQ	VTHR	Mon, Dec 28, 2020	174.29	174.29	173.35	173.41
2564	NASDAQ	VTHR	Thu, Dec 24, 2020	172.22	172.46	171.99	172.46
2563	NASDAQ	VTHR	Wed, Dec 23, 2020	172.04	172.80	172.04	172.24
2562	NASDAQ	VTHR	Tue, Dec 22, 2020	172.93	172.93	171.79	171.88
2561	NASDAQ	VTHR	Mon, Dec 21, 2020	170.69	171.90	169.34	171.70
2560	NASDAQ	VTHR	Fri, Dec 18, 2020	173.12	173.12	171.21	172.26
2559	NASDAQ	VTHR	Thu, Dec 17, 2020	172.98	172.98	172.21	172.79
2558	NASDAQ	VTHR	Wed, Dec 16, 2020	172.20	172.66	171.85	172.23
2557	NASDAQ	VTHR	Tue, Dec 15, 2020	170.96	172.09	170.57	172.07
2556	NASDAQ	VTHR	Mon, Dec 14, 2020	171.67	171.78	169.74	169.74
2555	NASDAQ	VTHR	Fri, Dec 11, 2020	169.47	170.16	168.81	170.12
2554	NASDAQ	VTHR	Thu, Dec 10, 2020	170.33	170.67	169.97	170.48
2553	NASDAQ	VTHR	Wed, Dec 9, 2020	172.45	172.45	169.88	170.40
2552	NASDAQ	VTHR	Tue, Dec 8, 2020	170.98	171.90	170.98	171.78
2551	NASDAQ	VTHR	Mon, Dec 7, 2020	171.07	171.19	170.63	171.05
2550	NASDAQ	VTHR	Fri, Dec 4, 2020	170.02	171.21	169.89	171.21
2549	NASDAQ	VTHR	Thu, Dec 3, 2020	169.82	170.18	169.30	169.43
2548	NASDAQ	VTHR	Wed, Dec 2, 2020	168.67	169.33	168.38	169.28
2547	NASDAQ	VTHR	Tue, Dec 1, 2020	169.23	169.80	168.93	169.12
2546	NASDAQ	VTHR	Mon, Nov 30, 2020	168.20	168.20	166.71	167.36
2545	NASDAQ	VTHR	Fri, Nov 27, 2020	168.47	168.48	167.99	168.21
2544	NASDAQ	VTHR	Wed, Nov 25, 2020	167.88	167.88	167.15	167.67
2543	NASDAQ	VTHR	Tue, Nov 24, 2020	167.13	167.82	166.32	167.80
2542	NASDAQ	VTHR	Mon, Nov 23, 2020	164.78	165.52	164.37	165.05
2541	NASDAQ	VTHR	Fri, Nov 20, 2020	164.87	164.87	163.96	164.17
2540	NASDAQ	VTHR	Thu, Nov 19, 2020	164.26	164.84	163.40	164.64
2539	NASDAQ	VTHR	Wed, Nov 18, 2020	165.56	166.11	164.04	164.05
2538	NASDAQ	VTHR	Tue, Nov 17, 2020	165.19	166.04	164.43	165.54
2537	NASDAQ	VTHR	Mon, Nov 16, 2020	166.12	166.12	164.70	165.97
2536	NASDAQ	VTHR	Fri, Nov 13, 2020	162.50	164.16	162.50	164.00
2535	NASDAQ	VTHR	Thu, Nov 12, 2020	162.98	162.98	160.96	161.50
2534	NASDAQ	VTHR	Wed, Nov 11, 2020	162.50	163.54	162.50	163.18
2533	NASDAQ	VTHR	Tue, Nov 10, 2020	161.99	162.42	160.48	162.03
2532	NASDAQ	VTHR	Mon, Nov 9, 2020	167.07	167.07	162.17	162.17
2531	NASDAQ	VTHR	Fri, Nov 6, 2020	160.10	160.59	159.42	160.15
2530	NASDAQ	VTHR	Thu, Nov 5, 2020	159.48	160.72	159.33	160.48
2529	NASDAQ	VTHR	Wed, Nov 4, 2020	156.02	158.93	155.40	157.04
2528	NASDAQ	VTHR	Tue, Nov 3, 2020	152.72	154.48	152.72	153.83
2527	NASDAQ	VTHR	Mon, Nov 2, 2020	151.16	151.83	149.51	150.76
2526	NASDAQ	VTHR	Fri, Oct 30, 2020	149.82	150.13	147.90	149.19
2525	NASDAQ	VTHR	Thu, Oct 29, 2020	149.99	152.19	149.83	151.16
2524	NASDAQ	VTHR	Wed, Oct 28, 2020	152.45	152.45	150.06	150.45
2523	NASDAQ	VTHR	Tue, Oct 27, 2020	155.38	155.83	154.75	154.79
2522	NASDAQ	VTHR	Mon, Oct 26, 2020	156.41	156.90	153.88	155.28
2521	NASDAQ	VTHR	Fri, Oct 23, 2020	158.09	158.09	157.27	158.00
2520	NASDAQ	VTHR	Thu, Oct 22, 2020	157.05	157.70	155.88	157.48
2519	NASDAQ	VTHR	Wed, Oct 21, 2020	157.07	158.03	156.82	157.18
2518	NASDAQ	VTHR	Tue, Oct 20, 2020	157.18	158.67	156.93	157.34
2517	NASDAQ	VTHR	Mon, Oct 19, 2020	159.33	159.33	158.05	158.05
2516	NASDAQ	VTHR	Fri, Oct 16, 2020	159.81	160.29	159.06	159.06
2515	NASDAQ	VTHR	Thu, Oct 15, 2020	157.89	159.22	157.41	159.06
2514	NASDAQ	VTHR	Wed, Oct 14, 2020	160.85	160.85	159.19	159.29
2513	NASDAQ	VTHR	Tue, Oct 13, 2020	160.90	160.90	159.87	160.26
2512	NASDAQ	VTHR	Mon, Oct 12, 2020	160.60	161.55	159.78	161.18
2511	NASDAQ	VTHR	Fri, Oct 9, 2020	158.00	158.91	157.98	158.56
2510	NASDAQ	VTHR	Thu, Oct 8, 2020	156.92	157.37	156.81	157.35
2509	NASDAQ	VTHR	Wed, Oct 7, 2020	154.45	156.25	154.00	156.01
2508	NASDAQ	VTHR	Tue, Oct 6, 2020	155.50	155.83	153.38	153.48
2507	NASDAQ	VTHR	Mon, Oct 5, 2020	153.25	155.12	153.00	155.12
2506	NASDAQ	VTHR	Fri, Oct 2, 2020	150.46	153.00	150.46	152.32
2505	NASDAQ	VTHR	Thu, Oct 1, 2020	153.63	153.63	152.78	153.11
2504	NASDAQ	VTHR	Wed, Sep 30, 2020	152.07	153.78	152.07	152.24
2503	NASDAQ	VTHR	Tue, Sep 29, 2020	152.25	152.25	151.13	151.53
2502	NASDAQ	VTHR	Mon, Sep 28, 2020	151.69	152.14	151.05	152.14
2501	NASDAQ	VTHR	Fri, Sep 25, 2020	147.04	149.46	146.91	149.46
2500	NASDAQ	VTHR	Thu, Sep 24, 2020	145.75	148.46	145.72	146.40
2499	NASDAQ	VTHR	Wed, Sep 23, 2020	150.02	150.02	146.59	146.59
2498	NASDAQ	VTHR	Tue, Sep 22, 2020	149.34	150.27	148.86	150.27
2497	NASDAQ	VTHR	Mon, Sep 21, 2020	147.79	148.77	146.60	148.77
2496	NASDAQ	VTHR	Fri, Sep 18, 2020	152.81	152.81	150.03	150.54
2495	NASDAQ	VTHR	Thu, Sep 17, 2020	150.58	151.86	150.58	151.28
2494	NASDAQ	VTHR	Wed, Sep 16, 2020	154.71	155.10	153.70	153.70
2493	NASDAQ	VTHR	Tue, Sep 15, 2020	154.24	154.59	153.69	153.69
2492	NASDAQ	VTHR	Mon, Sep 14, 2020	153.46	153.46	152.93	153.24
2491	NASDAQ	VTHR	Fri, Sep 11, 2020	151.96	151.96	149.64	150.67
2490	NASDAQ	VTHR	Thu, Sep 10, 2020	154.97	155.10	151.20	151.56
2489	NASDAQ	VTHR	Wed, Sep 9, 2020	153.21	154.63	152.39	153.71
2488	NASDAQ	VTHR	Tue, Sep 8, 2020	152.45	152.70	150.66	150.66
2487	NASDAQ	VTHR	Fri, Sep 4, 2020	156.80	157.45	151.49	155.90
2486	NASDAQ	VTHR	Thu, Sep 3, 2020	161.60	161.61	155.59	155.84
2485	NASDAQ	VTHR	Wed, Sep 2, 2020	161.06	162.45	160.18	162.42
2484	NASDAQ	VTHR	Tue, Sep 1, 2020	158.36	159.77	158.36	159.73
2483	NASDAQ	VTHR	Mon, Aug 31, 2020	158.48	159.13	158.48	158.49
2482	NASDAQ	VTHR	Fri, Aug 28, 2020	158.39	158.89	158.13	158.89
2481	NASDAQ	VTHR	Thu, Aug 27, 2020	157.84	158.36	157.12	157.87
2480	NASDAQ	VTHR	Wed, Aug 26, 2020	156.07	157.55	156.07	157.46
2479	NASDAQ	VTHR	Tue, Aug 25, 2020	155.59	155.99	155.31	155.95
2478	NASDAQ	VTHR	Mon, Aug 24, 2020	154.78	155.33	154.74	155.33
2477	NASDAQ	VTHR	Fri, Aug 21, 2020	153.62	154.00	153.57	153.94
2476	NASDAQ	VTHR	Thu, Aug 20, 2020	152.21	153.83	152.21	153.70
2475	NASDAQ	VTHR	Wed, Aug 19, 2020	153.74	154.21	153.18	153.18
2474	NASDAQ	VTHR	Tue, Aug 18, 2020	153.81	153.93	153.18	153.91
2473	NASDAQ	VTHR	Mon, Aug 17, 2020	153.34	153.68	153.34	153.53
2472	NASDAQ	VTHR	Fri, Aug 14, 2020	152.74	153.11	152.51	152.69
2471	NASDAQ	VTHR	Thu, Aug 13, 2020	152.92	153.55	152.73	152.98
2470	NASDAQ	VTHR	Wed, Aug 12, 2020	152.49	153.43	152.49	153.14
2469	NASDAQ	VTHR	Tue, Aug 11, 2020	152.28	153.20	151.34	151.34
2468	NASDAQ	VTHR	Mon, Aug 10, 2020	152.08	152.38	151.74	152.26
2467	NASDAQ	VTHR	Fri, Aug 7, 2020	151.13	152.01	150.90	151.87
2466	NASDAQ	VTHR	Thu, Aug 6, 2020	150.98	151.77	150.73	151.72
2465	NASDAQ	VTHR	Wed, Aug 5, 2020	150.28	151.10	150.28	151.09
2464	NASDAQ	VTHR	Tue, Aug 4, 2020	148.84	149.91	148.29	149.91
2463	NASDAQ	VTHR	Mon, Aug 3, 2020	148.80	149.66	148.73	149.23
2462	NASDAQ	VTHR	Fri, Jul 31, 2020	148.04	148.04	145.93	147.91
2461	NASDAQ	VTHR	Thu, Jul 30, 2020	145.96	147.22	145.58	147.19
2460	NASDAQ	VTHR	Wed, Jul 29, 2020	146.63	147.92	146.52	147.59
2459	NASDAQ	VTHR	Tue, Jul 28, 2020	146.28	146.79	145.64	145.71
2458	NASDAQ	VTHR	Mon, Jul 27, 2020	145.55	146.65	145.55	146.65
2457	NASDAQ	VTHR	Fri, Jul 24, 2020	146.01	146.01	145.32	145.41
2456	NASDAQ	VTHR	Thu, Jul 23, 2020	148.46	148.54	146.13	146.27
2455	NASDAQ	VTHR	Wed, Jul 22, 2020	147.90	147.90	147.44	147.80
2454	NASDAQ	VTHR	Tue, Jul 21, 2020	148.85	148.85	147.20	147.48
2453	NASDAQ	VTHR	Mon, Jul 20, 2020	145.90	147.29	145.62	147.19
2452	NASDAQ	VTHR	Fri, Jul 17, 2020	145.00	145.96	145.00	145.83
2451	NASDAQ	VTHR	Thu, Jul 16, 2020	145.20	145.29	144.86	145.29
2450	NASDAQ	VTHR	Wed, Jul 15, 2020	146.04	146.14	144.97	145.95
2449	NASDAQ	VTHR	Tue, Jul 14, 2020	142.02	143.48	141.18	143.30
2448	NASDAQ	VTHR	Mon, Jul 13, 2020	144.92	146.04	142.84	142.84
2447	NASDAQ	VTHR	Fri, Jul 10, 2020	142.90	143.96	142.90	143.92
2446	NASDAQ	VTHR	Thu, Jul 9, 2020	143.50	143.67	141.61	142.27
2445	NASDAQ	VTHR	Wed, Jul 8, 2020	143.03	143.03	142.30	142.62
2444	NASDAQ	VTHR	Tue, Jul 7, 2020	142.68	143.71	142.00	142.09
2443	NASDAQ	VTHR	Mon, Jul 6, 2020	143.84	143.84	143.00	143.55
2442	NASDAQ	VTHR	Thu, Jul 2, 2020	142.33	143.00	141.19	141.39
2441	NASDAQ	VTHR	Wed, Jul 1, 2020	140.57	141.04	140.23	141.04
2440	NASDAQ	VTHR	Tue, Jun 30, 2020	137.94	139.92	137.80	139.88
2439	NASDAQ	VTHR	Mon, Jun 29, 2020	136.34	137.82	136.34	137.82
2438	NASDAQ	VTHR	Fri, Jun 26, 2020	138.68	138.68	135.75	135.75
2437	NASDAQ	VTHR	Thu, Jun 25, 2020	137.48	139.10	136.33	139.10
2436	NASDAQ	VTHR	Wed, Jun 24, 2020	141.11	141.11	137.65	138.04
2435	NASDAQ	VTHR	Tue, Jun 23, 2020	142.30	142.92	141.82	141.88
2434	NASDAQ	VTHR	Mon, Jun 22, 2020	140.15	141.42	140.06	141.32
2433	NASDAQ	VTHR	Fri, Jun 19, 2020	142.22	142.49	139.87	140.48
2432	NASDAQ	VTHR	Thu, Jun 18, 2020	140.25	141.20	140.25	141.12
2431	NASDAQ	VTHR	Wed, Jun 17, 2020	141.99	142.06	141.02	141.04
2430	NASDAQ	VTHR	Tue, Jun 16, 2020	143.65	143.65	140.64	141.51
2429	NASDAQ	VTHR	Mon, Jun 15, 2020	134.56	139.37	134.26	138.92
2428	NASDAQ	VTHR	Fri, Jun 12, 2020	138.89	138.89	134.71	137.63
2427	NASDAQ	VTHR	Thu, Jun 11, 2020	140.02	140.85	135.62	135.69
2426	NASDAQ	VTHR	Wed, Jun 10, 2020	146.05	146.05	144.39	144.43
2425	NASDAQ	VTHR	Tue, Jun 9, 2020	144.80	145.79	144.63	145.39
2424	NASDAQ	VTHR	Mon, Jun 8, 2020	145.06	146.55	145.06	146.55
2423	NASDAQ	VTHR	Fri, Jun 5, 2020	143.74	145.34	143.74	144.59
2422	NASDAQ	VTHR	Thu, Jun 4, 2020	140.72	141.69	140.67	140.87
2421	NASDAQ	VTHR	Wed, Jun 3, 2020	140.10	141.51	140.10	141.51
2420	NASDAQ	VTHR	Tue, Jun 2, 2020	138.84	139.00	138.66	138.70
2419	NASDAQ	VTHR	Mon, Jun 1, 2020	137.77	138.43	137.03	138.22
2418	NASDAQ	VTHR	Fri, May 29, 2020	136.94	137.19	135.61	137.19
2417	NASDAQ	VTHR	Thu, May 28, 2020	137.99	138.56	136.74	136.74
2416	NASDAQ	VTHR	Wed, May 27, 2020	136.39	137.32	134.68	137.32
2415	NASDAQ	VTHR	Tue, May 26, 2020	135.84	136.22	135.14	135.14
2414	NASDAQ	VTHR	Fri, May 22, 2020	132.77	133.36	132.41	133.08
2413	NASDAQ	VTHR	Thu, May 21, 2020	133.75	133.77	133.01	133.01
2412	NASDAQ	VTHR	Wed, May 20, 2020	133.68	134.21	133.23	133.84
2411	NASDAQ	VTHR	Tue, May 19, 2020	132.90	133.50	132.12	132.15
2410	NASDAQ	VTHR	Mon, May 18, 2020	131.51	133.50	131.51	133.50
2409	NASDAQ	VTHR	Fri, May 15, 2020	126.54	128.46	126.31	128.46
2408	NASDAQ	VTHR	Thu, May 14, 2020	124.74	127.64	124.15	127.61
2407	NASDAQ	VTHR	Wed, May 13, 2020	129.05	129.05	125.58	126.40
2406	NASDAQ	VTHR	Tue, May 12, 2020	132.40	132.40	128.86	128.86
2405	NASDAQ	VTHR	Mon, May 11, 2020	130.53	132.28	130.53	131.97
2404	NASDAQ	VTHR	Fri, May 8, 2020	130.39	131.81	130.39	131.74
2403	NASDAQ	VTHR	Thu, May 7, 2020	129.92	130.16	129.17	129.49
2402	NASDAQ	VTHR	Wed, May 6, 2020	129.82	129.82	127.69	127.90
2401	NASDAQ	VTHR	Tue, May 5, 2020	129.40	129.82	128.93	128.93
2400	NASDAQ	VTHR	Mon, May 4, 2020	125.94	127.28	125.36	127.24
2399	NASDAQ	VTHR	Fri, May 1, 2020	127.63	128.14	126.32	126.62
2398	NASDAQ	VTHR	Thu, Apr 30, 2020	131.52	131.52	129.93	130.41
2397	NASDAQ	VTHR	Wed, Apr 29, 2020	131.82	132.76	130.71	132.19
2396	NASDAQ	VTHR	Tue, Apr 28, 2020	131.05	131.05	128.34	128.38
2395	NASDAQ	VTHR	Mon, Apr 27, 2020	128.14	129.06	127.45	128.92
2394	NASDAQ	VTHR	Fri, Apr 24, 2020	126.06	126.57	125.24	126.43
2393	NASDAQ	VTHR	Thu, Apr 23, 2020	125.92	126.87	124.88	124.88
2392	NASDAQ	VTHR	Wed, Apr 22, 2020	124.72	125.32	124.06	124.81
2391	NASDAQ	VTHR	Tue, Apr 21, 2020	124.14	124.14	121.69	122.25
2390	NASDAQ	VTHR	Mon, Apr 20, 2020	126.92	127.89	125.85	126.08
2389	NASDAQ	VTHR	Fri, Apr 17, 2020	127.59	127.95	126.45	127.95
2388	NASDAQ	VTHR	Thu, Apr 16, 2020	125.34	125.34	122.96	124.39
2387	NASDAQ	VTHR	Wed, Apr 15, 2020	124.86	124.86	123.10	123.92
2386	NASDAQ	VTHR	Tue, Apr 14, 2020	125.05	126.94	125.05	126.88
2385	NASDAQ	VTHR	Mon, Apr 13, 2020	123.67	123.73	121.64	123.27
2384	NASDAQ	VTHR	Thu, Apr 9, 2020	124.12	125.77	123.51	124.66
2383	NASDAQ	VTHR	Wed, Apr 8, 2020	118.82	122.87	118.82	122.26
2382	NASDAQ	VTHR	Tue, Apr 7, 2020	122.81	122.81	118.46	118.46
2381	NASDAQ	VTHR	Mon, Apr 6, 2020	114.18	118.52	114.18	118.04
2380	NASDAQ	VTHR	Fri, Apr 3, 2020	111.85	112.02	109.42	110.31
2379	NASDAQ	VTHR	Thu, Apr 2, 2020	109.89	112.13	109.19	112.13
2378	NASDAQ	VTHR	Wed, Apr 1, 2020	111.74	112.16	108.92	110.04
2377	NASDAQ	VTHR	Tue, Mar 31, 2020	116.93	117.53	114.84	115.14
2376	NASDAQ	VTHR	Mon, Mar 30, 2020	113.90	117.17	113.90	116.88
2375	NASDAQ	VTHR	Fri, Mar 27, 2020	114.49	116.20	112.50	113.30
2374	NASDAQ	VTHR	Thu, Mar 26, 2020	112.23	117.19	112.02	117.19
2373	NASDAQ	VTHR	Wed, Mar 25, 2020	110.85	115.46	108.00	110.82
2372	NASDAQ	VTHR	Tue, Mar 24, 2020	106.26	109.63	105.13	109.63
2371	NASDAQ	VTHR	Mon, Mar 23, 2020	101.72	102.53	97.77	100.69
2370	NASDAQ	VTHR	Fri, Mar 20, 2020	109.58	109.58	103.00	103.00
2369	NASDAQ	VTHR	Thu, Mar 19, 2020	105.94	109.66	102.67	107.47
2368	NASDAQ	VTHR	Wed, Mar 18, 2020	106.17	109.00	101.09	105.29
2367	NASDAQ	VTHR	Tue, Mar 17, 2020	109.00	113.79	106.82	112.52
2366	NASDAQ	VTHR	Mon, Mar 16, 2020	105.58	114.35	105.58	108.76
2365	NASDAQ	VTHR	Fri, Mar 13, 2020	117.51	118.75	112.13	118.74
2364	NASDAQ	VTHR	Thu, Mar 12, 2020	117.00	119.35	100.00	111.83
2363	NASDAQ	VTHR	Wed, Mar 11, 2020	126.78	126.78	122.00	123.50
2362	NASDAQ	VTHR	Tue, Mar 10, 2020	129.38	130.12	123.53	129.99
2361	NASDAQ	VTHR	Mon, Mar 9, 2020	129.91	131.53	124.08	124.27
2360	NASDAQ	VTHR	Fri, Mar 6, 2020	133.78	135.00	131.80	134.91
2359	NASDAQ	VTHR	Thu, Mar 5, 2020	138.50	138.98	136.33	137.35
2358	NASDAQ	VTHR	Wed, Mar 4, 2020	139.43	141.97	138.32	141.97
2357	NASDAQ	VTHR	Tue, Mar 3, 2020	141.12	142.12	135.41	136.50
2356	NASDAQ	VTHR	Mon, Mar 2, 2020	134.98	139.56	134.09	139.56
2355	NASDAQ	VTHR	Fri, Feb 28, 2020	133.45	134.56	130.20	134.55
2354	NASDAQ	VTHR	Thu, Feb 27, 2020	138.71	140.80	136.00	136.00
2353	NASDAQ	VTHR	Wed, Feb 26, 2020	142.77	144.52	141.62	141.62
2352	NASDAQ	VTHR	Tue, Feb 25, 2020	147.90	147.90	142.32	142.39
2351	NASDAQ	VTHR	Mon, Feb 24, 2020	147.49	148.15	146.38	147.16
2350	NASDAQ	VTHR	Fri, Feb 21, 2020	153.08	153.08	151.55	151.85
2349	NASDAQ	VTHR	Thu, Feb 20, 2020	153.95	154.17	152.62	153.51
2348	NASDAQ	VTHR	Wed, Feb 19, 2020	153.85	154.30	153.69	153.98
2347	NASDAQ	VTHR	Tue, Feb 18, 2020	153.44	153.44	152.67	153.36
2346	NASDAQ	VTHR	Fri, Feb 14, 2020	153.66	153.84	153.22	153.79
2345	NASDAQ	VTHR	Thu, Feb 13, 2020	153.33	153.97	152.92	153.59
2344	NASDAQ	VTHR	Wed, Feb 12, 2020	153.27	153.71	153.20	153.55
2343	NASDAQ	VTHR	Tue, Feb 11, 2020	152.75	153.33	152.43	152.43
2342	NASDAQ	VTHR	Mon, Feb 10, 2020	150.64	152.07	150.64	152.07
2341	NASDAQ	VTHR	Fri, Feb 7, 2020	151.66	151.66	150.90	151.05
2340	NASDAQ	VTHR	Thu, Feb 6, 2020	152.31	152.31	151.50	151.88
2339	NASDAQ	VTHR	Wed, Feb 5, 2020	151.27	151.38	150.55	151.24
2338	NASDAQ	VTHR	Tue, Feb 4, 2020	149.61	150.08	149.49	149.83
2337	NASDAQ	VTHR	Mon, Feb 3, 2020	147.88	148.09	147.30	147.57
2336	NASDAQ	VTHR	Fri, Jan 31, 2020	148.67	148.67	145.95	146.36
2335	NASDAQ	VTHR	Thu, Jan 30, 2020	147.73	148.98	147.34	148.98
2334	NASDAQ	VTHR	Wed, Jan 29, 2020	148.81	149.17	148.67	148.68
2333	NASDAQ	VTHR	Tue, Jan 28, 2020	148.09	148.93	147.73	148.82
2332	NASDAQ	VTHR	Mon, Jan 27, 2020	147.45	147.83	146.74	147.23
2331	NASDAQ	VTHR	Fri, Jan 24, 2020	151.36	151.36	149.09	149.31
2330	NASDAQ	VTHR	Thu, Jan 23, 2020	150.26	150.91	150.01	150.90
2329	NASDAQ	VTHR	Wed, Jan 22, 2020	151.04	151.49	150.73	150.73
2328	NASDAQ	VTHR	Tue, Jan 21, 2020	150.80	151.06	150.54	150.65
2327	NASDAQ	VTHR	Fri, Jan 17, 2020	151.26	151.26	150.84	151.02
2326	NASDAQ	VTHR	Thu, Jan 16, 2020	150.19	150.51	150.13	150.50
2325	NASDAQ	VTHR	Wed, Jan 15, 2020	149.35	149.82	148.94	149.25
2324	NASDAQ	VTHR	Tue, Jan 14, 2020	149.13	149.52	148.64	149.03
2323	NASDAQ	VTHR	Mon, Jan 13, 2020	148.52	149.11	148.34	149.11
2322	NASDAQ	VTHR	Fri, Jan 10, 2020	148.69	148.79	148.07	148.10
2321	NASDAQ	VTHR	Thu, Jan 9, 2020	148.42	148.52	148.11	148.48
2320	NASDAQ	VTHR	Wed, Jan 8, 2020	146.80	148.14	146.80	147.56
2319	NASDAQ	VTHR	Tue, Jan 7, 2020	147.12	147.12	146.80	146.85
2318	NASDAQ	VTHR	Mon, Jan 6, 2020	145.76	147.12	145.76	147.12
2317	NASDAQ	VTHR	Fri, Jan 3, 2020	145.82	147.11	145.82	146.76
2316	NASDAQ	VTHR	Thu, Jan 2, 2020	147.27	147.57	146.71	147.57
2315	NASDAQ	VTHR	Tue, Dec 31, 2019	145.99	146.55	145.91	146.41
2314	NASDAQ	VTHR	Mon, Dec 30, 2019	146.92	146.92	145.80	146.00
2313	NASDAQ	VTHR	Fri, Dec 27, 2019	147.52	147.52	146.73	146.73
2312	NASDAQ	VTHR	Thu, Dec 26, 2019	146.68	146.88	146.68	146.88
2311	NASDAQ	VTHR	Tue, Dec 24, 2019	146.21	146.28	146.21	146.27
2310	NASDAQ	VTHR	Mon, Dec 23, 2019	146.20	146.58	146.20	146.22
2309	NASDAQ	VTHR	Fri, Dec 20, 2019	145.97	146.24	145.94	146.23
2308	NASDAQ	VTHR	Thu, Dec 19, 2019	145.05	145.42	144.92	145.34
2307	NASDAQ	VTHR	Wed, Dec 18, 2019	145.02	145.02	144.75	145.00
2306	NASDAQ	VTHR	Tue, Dec 17, 2019	144.99	144.99	144.73	144.81
2305	NASDAQ	VTHR	Mon, Dec 16, 2019	144.45	144.99	144.45	144.68
2304	NASDAQ	VTHR	Fri, Dec 13, 2019	144.31	144.80	143.93	144.15
2303	NASDAQ	VTHR	Thu, Dec 12, 2019	143.18	144.58	143.00	144.29
2302	NASDAQ	VTHR	Wed, Dec 11, 2019	142.93	143.10	142.79	143.09
2301	NASDAQ	VTHR	Tue, Dec 10, 2019	142.97	143.07	142.55	142.60
2300	NASDAQ	VTHR	Mon, Dec 9, 2019	143.42	143.43	142.88	142.88
2299	NASDAQ	VTHR	Fri, Dec 6, 2019	143.15	143.52	143.15	143.35
2298	NASDAQ	VTHR	Thu, Dec 5, 2019	142.04	142.07	141.60	141.97
2297	NASDAQ	VTHR	Wed, Dec 4, 2019	141.55	142.05	141.55	141.93
2296	NASDAQ	VTHR	Tue, Dec 3, 2019	140.44	140.96	140.08	140.92
2295	NASDAQ	VTHR	Mon, Dec 2, 2019	143.17	143.17	141.78	141.78
2294	NASDAQ	VTHR	Fri, Nov 29, 2019	143.54	143.54	143.00	143.00
2293	NASDAQ	VTHR	Wed, Nov 27, 2019	143.40	143.67	143.23	143.67
2292	NASDAQ	VTHR	Tue, Nov 26, 2019	142.70	143.02	142.70	143.00
2291	NASDAQ	VTHR	Mon, Nov 25, 2019	141.84	142.57	141.84	142.57
2290	NASDAQ	VTHR	Fri, Nov 22, 2019	141.38	141.44	141.03	141.32
2289	NASDAQ	VTHR	Thu, Nov 21, 2019	141.67	141.67	141.00	141.09
2288	NASDAQ	VTHR	Wed, Nov 20, 2019	141.83	141.85	140.75	141.36
2287	NASDAQ	VTHR	Tue, Nov 19, 2019	142.00	142.10	141.58	141.97
2286	NASDAQ	VTHR	Mon, Nov 18, 2019	141.92	141.92	141.44	141.81
2285	NASDAQ	VTHR	Fri, Nov 15, 2019	141.49	141.67	141.48	141.67
2284	NASDAQ	VTHR	Thu, Nov 14, 2019	140.67	140.69	140.10	140.69
2283	NASDAQ	VTHR	Wed, Nov 13, 2019	140.31	140.69	140.00	140.55
2282	NASDAQ	VTHR	Tue, Nov 12, 2019	140.42	141.00	140.29	140.46
2281	NASDAQ	VTHR	Mon, Nov 11, 2019	139.91	140.30	139.91	140.21
2280	NASDAQ	VTHR	Fri, Nov 8, 2019	139.95	140.43	139.77	140.43
2279	NASDAQ	VTHR	Thu, Nov 7, 2019	140.39	140.67	139.89	140.06
2278	NASDAQ	VTHR	Wed, Nov 6, 2019	139.64	139.72	139.31	139.64
2277	NASDAQ	VTHR	Tue, Nov 5, 2019	139.88	139.89	139.62	139.62
2276	NASDAQ	VTHR	Mon, Nov 4, 2019	140.08	140.08	139.64	139.76
2275	NASDAQ	VTHR	Fri, Nov 1, 2019	138.37	139.21	138.37	139.20
2274	NASDAQ	VTHR	Thu, Oct 31, 2019	138.25	138.25	137.20	137.64
2273	NASDAQ	VTHR	Wed, Oct 30, 2019	137.86	138.31	137.66	138.31
2272	NASDAQ	VTHR	Tue, Oct 29, 2019	137.80	138.39	137.80	137.97
2271	NASDAQ	VTHR	Mon, Oct 28, 2019	137.75	138.15	137.75	138.00
2270	NASDAQ	VTHR	Fri, Oct 25, 2019	136.56	137.24	136.55	137.17
2269	NASDAQ	VTHR	Thu, Oct 24, 2019	136.65	136.70	136.20	136.66
2268	NASDAQ	VTHR	Wed, Oct 23, 2019	135.98	136.20	135.78	136.18
2267	NASDAQ	VTHR	Tue, Oct 22, 2019	136.54	136.68	135.98	135.98
2266	NASDAQ	VTHR	Mon, Oct 21, 2019	136.17	136.41	136.01	136.41
2265	NASDAQ	VTHR	Fri, Oct 18, 2019	135.83	135.90	135.00	135.59
2264	NASDAQ	VTHR	Thu, Oct 17, 2019	136.16	136.16	135.99	136.08
2263	NASDAQ	VTHR	Wed, Oct 16, 2019	135.67	135.78	135.38	135.55
2262	NASDAQ	VTHR	Tue, Oct 15, 2019	134.89	136.11	134.89	135.86
2261	NASDAQ	VTHR	Mon, Oct 14, 2019	134.64	134.64	134.51	134.54
2260	NASDAQ	VTHR	Fri, Oct 11, 2019	134.98	135.61	134.90	134.90
2259	NASDAQ	VTHR	Thu, Oct 10, 2019	132.40	133.52	132.40	133.05
2258	NASDAQ	VTHR	Wed, Oct 9, 2019	132.14	132.73	132.02	132.51
2257	NASDAQ	VTHR	Tue, Oct 8, 2019	132.21	132.28	131.15	131.15
2256	NASDAQ	VTHR	Mon, Oct 7, 2019	133.36	134.08	133.21	133.30
2255	NASDAQ	VTHR	Fri, Oct 4, 2019	132.35	133.32	132.35	133.32
2254	NASDAQ	VTHR	Thu, Oct 3, 2019	130.76	131.93	129.58	131.93
2253	NASDAQ	VTHR	Wed, Oct 2, 2019	132.24	132.24	130.61	130.91
2252	NASDAQ	VTHR	Tue, Oct 1, 2019	135.48	135.50	133.19	133.19
2251	NASDAQ	VTHR	Mon, Sep 30, 2019	134.59	135.24	134.59	135.18
2250	NASDAQ	VTHR	Fri, Sep 27, 2019	135.32	135.39	134.18	134.24
2249	NASDAQ	VTHR	Thu, Sep 26, 2019	135.51	135.51	134.47	135.02
2248	NASDAQ	VTHR	Wed, Sep 25, 2019	135.22	136.31	134.66	136.09
2247	NASDAQ	VTHR	Tue, Sep 24, 2019	136.72	136.97	135.16	135.21
2246	NASDAQ	VTHR	Mon, Sep 23, 2019	136.37	136.84	136.35	136.51
2245	NASDAQ	VTHR	Fri, Sep 20, 2019	137.50	137.50	136.44	136.49
2244	NASDAQ	VTHR	Thu, Sep 19, 2019	137.32	137.78	137.11	137.11
2243	NASDAQ	VTHR	Wed, Sep 18, 2019	136.83	137.16	135.93	137.16
2242	NASDAQ	VTHR	Tue, Sep 17, 2019	136.77	136.93	136.77	136.87
2241	NASDAQ	VTHR	Mon, Sep 16, 2019	136.87	136.94	136.58	136.85
2240	NASDAQ	VTHR	Fri, Sep 13, 2019	137.50	137.54	137.10	137.23
2239	NASDAQ	VTHR	Thu, Sep 12, 2019	137.30	137.60	136.99	137.25
2238	NASDAQ	VTHR	Wed, Sep 11, 2019	135.76	136.81	135.76	136.81
2237	NASDAQ	VTHR	Tue, Sep 10, 2019	135.20	135.50	134.62	135.50
2236	NASDAQ	VTHR	Mon, Sep 9, 2019	135.91	135.91	135.26	135.56
2235	NASDAQ	VTHR	Fri, Sep 6, 2019	135.50	135.78	135.36	135.48
2234	NASDAQ	VTHR	Thu, Sep 5, 2019	135.00	135.82	135.00	135.49
2233	NASDAQ	VTHR	Wed, Sep 4, 2019	133.36	133.67	133.28	133.65
2232	NASDAQ	VTHR	Tue, Sep 3, 2019	132.37	132.55	131.70	132.21
2231	NASDAQ	VTHR	Fri, Aug 30, 2019	133.67	133.80	132.81	133.22
2230	NASDAQ	VTHR	Thu, Aug 29, 2019	132.63	133.41	132.30	133.27
2229	NASDAQ	VTHR	Wed, Aug 28, 2019	130.07	131.40	129.88	131.38
2228	NASDAQ	VTHR	Tue, Aug 27, 2019	131.76	131.91	130.30	130.59
2227	NASDAQ	VTHR	Mon, Aug 26, 2019	130.72	130.98	130.24	130.89
2226	NASDAQ	VTHR	Fri, Aug 23, 2019	132.62	133.37	129.68	129.68
2225	NASDAQ	VTHR	Thu, Aug 22, 2019	133.49	133.76	132.40	133.23
2224	NASDAQ	VTHR	Wed, Aug 21, 2019	133.20	133.38	132.91	133.25
2223	NASDAQ	VTHR	Tue, Aug 20, 2019	132.78	133.03	132.33	132.33
2222	NASDAQ	VTHR	Mon, Aug 19, 2019	133.21	133.40	132.98	133.18
2221	NASDAQ	VTHR	Fri, Aug 16, 2019	130.42	131.80	130.42	131.66
2220	NASDAQ	VTHR	Thu, Aug 15, 2019	129.45	130.09	128.82	129.62
2219	NASDAQ	VTHR	Wed, Aug 14, 2019	131.12	131.32	129.46	129.46
2218	NASDAQ	VTHR	Tue, Aug 13, 2019	131.40	133.93	131.40	133.24
2217	NASDAQ	VTHR	Mon, Aug 12, 2019	132.21	132.33	131.00	131.44
2216	NASDAQ	VTHR	Fri, Aug 9, 2019	133.59	133.59	132.37	133.10
2215	NASDAQ	VTHR	Thu, Aug 8, 2019	132.05	134.03	132.05	133.88
2214	NASDAQ	VTHR	Wed, Aug 7, 2019	129.98	131.64	129.24	131.64
2213	NASDAQ	VTHR	Tue, Aug 6, 2019	130.70	131.40	129.85	131.34
2212	NASDAQ	VTHR	Mon, Aug 5, 2019	131.53	131.53	129.10	129.80
2211	NASDAQ	VTHR	Fri, Aug 2, 2019	134.34	134.34	133.05	133.63
2210	NASDAQ	VTHR	Thu, Aug 1, 2019	136.26	137.26	134.61	134.66
2209	NASDAQ	VTHR	Wed, Jul 31, 2019	137.68	137.68	135.54	136.16
2208	NASDAQ	VTHR	Tue, Jul 30, 2019	137.25	137.55	137.13	137.40
2207	NASDAQ	VTHR	Mon, Jul 29, 2019	138.10	138.10	137.48	137.72
2206	NASDAQ	VTHR	Fri, Jul 26, 2019	137.39	138.08	137.39	138.05
2205	NASDAQ	VTHR	Thu, Jul 25, 2019	137.72	137.72	136.70	137.06
2204	NASDAQ	VTHR	Wed, Jul 24, 2019	137.10	137.72	137.10	137.71
2203	NASDAQ	VTHR	Tue, Jul 23, 2019	136.64	136.87	136.23	136.85
2202	NASDAQ	VTHR	Mon, Jul 22, 2019	136.19	136.19	135.75	135.95
2201	NASDAQ	VTHR	Fri, Jul 19, 2019	137.11	137.11	135.92	135.92
2200	NASDAQ	VTHR	Thu, Jul 18, 2019	135.92	136.13	135.67	136.04
2199	NASDAQ	VTHR	Wed, Jul 17, 2019	136.92	136.92	136.06	136.06
2198	NASDAQ	VTHR	Tue, Jul 16, 2019	137.19	137.36	136.86	136.93
2197	NASDAQ	VTHR	Mon, Jul 15, 2019	137.60	137.60	137.06	137.24
2196	NASDAQ	VTHR	Fri, Jul 12, 2019	136.98	137.25	136.86	137.25
2195	NASDAQ	VTHR	Thu, Jul 11, 2019	136.75	136.75	136.26	136.51
2194	NASDAQ	VTHR	Wed, Jul 10, 2019	136.42	136.59	136.37	136.41
2193	NASDAQ	VTHR	Tue, Jul 9, 2019	135.03	135.92	135.03	135.89
2192	NASDAQ	VTHR	Mon, Jul 8, 2019	135.93	135.93	135.40	135.60
2191	NASDAQ	VTHR	Fri, Jul 5, 2019	136.19	136.34	135.44	136.11
2190	NASDAQ	VTHR	Wed, Jul 3, 2019	135.87	136.37	135.71	136.34
2189	NASDAQ	VTHR	Tue, Jul 2, 2019	135.06	135.25	134.93	135.21
2188	NASDAQ	VTHR	Mon, Jul 1, 2019	135.73	135.73	134.57	134.97
2187	NASDAQ	VTHR	Fri, Jun 28, 2019	133.42	133.95	133.42	133.95
2186	NASDAQ	VTHR	Thu, Jun 27, 2019	133.19	133.28	132.81	133.22
2185	NASDAQ	VTHR	Wed, Jun 26, 2019	133.18	133.18	132.45	132.61
2184	NASDAQ	VTHR	Tue, Jun 25, 2019	134.07	134.07	132.57	132.70
2183	NASDAQ	VTHR	Mon, Jun 24, 2019	134.46	134.46	134.20	134.26
2182	NASDAQ	VTHR	Fri, Jun 21, 2019	134.47	134.57	134.06	134.27
2181	NASDAQ	VTHR	Thu, Jun 20, 2019	135.49	135.49	134.54	135.25
2180	NASDAQ	VTHR	Wed, Jun 19, 2019	133.60	134.24	133.51	134.09
2179	NASDAQ	VTHR	Tue, Jun 18, 2019	133.23	134.16	133.23	133.60
2178	NASDAQ	VTHR	Mon, Jun 17, 2019	132.39	132.60	132.25	132.43
2177	NASDAQ	VTHR	Fri, Jun 14, 2019	132.57	132.57	131.82	132.41
2176	NASDAQ	VTHR	Thu, Jun 13, 2019	132.37	132.37	132.00	132.29
2175	NASDAQ	VTHR	Wed, Jun 12, 2019	131.75	131.88	131.47	131.66
2174	NASDAQ	VTHR	Tue, Jun 11, 2019	132.97	133.09	131.67	132.04
2173	NASDAQ	VTHR	Mon, Jun 10, 2019	131.99	132.83	131.96	131.96
2172	NASDAQ	VTHR	Fri, Jun 7, 2019	130.41	131.58	130.41	131.57
2171	NASDAQ	VTHR	Thu, Jun 6, 2019	129.30	130.17	129.30	130.07
2170	NASDAQ	VTHR	Wed, Jun 5, 2019	129.00	129.20	128.39	129.20
2169	NASDAQ	VTHR	Tue, Jun 4, 2019	126.69	128.21	126.69	128.21
2168	NASDAQ	VTHR	Mon, Jun 3, 2019	126.00	126.27	125.38	125.47
2167	NASDAQ	VTHR	Fri, May 31, 2019	126.21	126.23	125.95	126.00
2166	NASDAQ	VTHR	Thu, May 30, 2019	127.89	128.06	127.40	127.46
2165	NASDAQ	VTHR	Wed, May 29, 2019	127.55	127.56	126.81	127.35
2164	NASDAQ	VTHR	Tue, May 28, 2019	129.50	129.92	128.24	128.24
2163	NASDAQ	VTHR	Fri, May 24, 2019	129.59	129.59	129.25	129.41
2162	NASDAQ	VTHR	Thu, May 23, 2019	129.87	129.87	128.32	128.70
2161	NASDAQ	VTHR	Wed, May 22, 2019	130.79	130.99	130.42	130.61
2160	NASDAQ	VTHR	Tue, May 21, 2019	130.71	131.25	130.71	130.98
2159	NASDAQ	VTHR	Mon, May 20, 2019	129.93	130.41	129.65	129.84
2158	NASDAQ	VTHR	Fri, May 17, 2019	130.84	131.86	130.75	130.75
2157	NASDAQ	VTHR	Thu, May 16, 2019	131.14	132.15	130.95	131.50
2156	NASDAQ	VTHR	Wed, May 15, 2019	129.06	130.69	129.06	130.46
2155	NASDAQ	VTHR	Tue, May 14, 2019	129.87	130.28	129.83	129.83
2154	NASDAQ	VTHR	Mon, May 13, 2019	129.69	129.69	128.29	128.75
2153	NASDAQ	VTHR	Fri, May 10, 2019	130.92	132.26	129.61	131.94
2152	NASDAQ	VTHR	Thu, May 9, 2019	130.78	131.53	129.87	131.38
2151	NASDAQ	VTHR	Wed, May 8, 2019	131.77	132.31	131.75	131.81
2150	NASDAQ	VTHR	Tue, May 7, 2019	133.04	133.13	131.29	132.00
2149	NASDAQ	VTHR	Mon, May 6, 2019	132.45	134.37	132.45	134.37
2148	NASDAQ	VTHR	Fri, May 3, 2019	133.90	134.81	133.90	134.80
2147	NASDAQ	VTHR	Thu, May 2, 2019	133.48	133.94	132.92	133.30
2146	NASDAQ	VTHR	Wed, May 1, 2019	134.93	134.93	133.58	133.59
2145	NASDAQ	VTHR	Tue, Apr 30, 2019	134.20	134.52	133.82	134.52
2144	NASDAQ	VTHR	Mon, Apr 29, 2019	134.46	134.70	134.46	134.56
2143	NASDAQ	VTHR	Fri, Apr 26, 2019	133.59	134.13	133.38	134.08
2142	NASDAQ	VTHR	Thu, Apr 25, 2019	133.78	133.83	133.42	133.68
2141	NASDAQ	VTHR	Wed, Apr 24, 2019	133.88	134.20	133.85	133.89
2140	NASDAQ	VTHR	Tue, Apr 23, 2019	133.01	134.06	132.91	134.03
2139	NASDAQ	VTHR	Mon, Apr 22, 2019	132.39	132.66	132.27	132.56
2138	NASDAQ	VTHR	Thu, Apr 18, 2019	132.52	132.74	132.04	132.58
2137	NASDAQ	VTHR	Wed, Apr 17, 2019	133.12	133.12	132.27	132.52
2136	NASDAQ	VTHR	Tue, Apr 16, 2019	133.25	133.26	132.72	132.82
2135	NASDAQ	VTHR	Mon, Apr 15, 2019	133.19	133.19	132.54	132.85
2134	NASDAQ	VTHR	Fri, Apr 12, 2019	132.92	132.97	132.57	132.87
2133	NASDAQ	VTHR	Thu, Apr 11, 2019	132.53	132.53	131.92	132.11
2132	NASDAQ	VTHR	Wed, Apr 10, 2019	131.85	132.10	131.73	132.07
2131	NASDAQ	VTHR	Tue, Apr 9, 2019	131.96	131.96	131.38	131.42
2130	NASDAQ	VTHR	Mon, Apr 8, 2019	131.89	132.30	131.84	132.30
2129	NASDAQ	VTHR	Fri, Apr 5, 2019	131.84	132.16	131.77	132.11
2128	NASDAQ	VTHR	Thu, Apr 4, 2019	131.36	131.58	130.96	131.44
2127	NASDAQ	VTHR	Wed, Apr 3, 2019	131.51	131.68	130.91	131.21
2126	NASDAQ	VTHR	Tue, Apr 2, 2019	130.77	130.99	130.57	130.96
2125	NASDAQ	VTHR	Mon, Apr 1, 2019	130.22	130.94	130.22	130.74
2124	NASDAQ	VTHR	Fri, Mar 29, 2019	129.23	129.43	128.82	129.43
2123	NASDAQ	VTHR	Thu, Mar 28, 2019	128.28	128.63	128.28	128.50
2122	NASDAQ	VTHR	Wed, Mar 27, 2019	128.69	128.78	127.88	128.04
2121	NASDAQ	VTHR	Tue, Mar 26, 2019	128.35	129.09	128.16	128.43
2120	NASDAQ	VTHR	Mon, Mar 25, 2019	127.52	128.10	127.03	127.73
2119	NASDAQ	VTHR	Fri, Mar 22, 2019	130.36	130.46	128.16	128.16
2118	NASDAQ	VTHR	Thu, Mar 21, 2019	128.96	131.00	128.96	130.93
2117	NASDAQ	VTHR	Wed, Mar 20, 2019	129.99	130.31	128.94	129.49
2116	NASDAQ	VTHR	Tue, Mar 19, 2019	130.49	130.75	129.74	129.74
2115	NASDAQ	VTHR	Mon, Mar 18, 2019	129.63	130.03	129.58	129.92
2114	NASDAQ	VTHR	Fri, Mar 15, 2019	129.23	129.68	129.23	129.46
2113	NASDAQ	VTHR	Thu, Mar 14, 2019	128.86	129.03	128.72	128.84
2112	NASDAQ	VTHR	Wed, Mar 13, 2019	128.46	129.27	128.46	128.99
2111	NASDAQ	VTHR	Tue, Mar 12, 2019	128.23	128.31	128.00	128.00
2110	NASDAQ	VTHR	Mon, Mar 11, 2019	126.35	127.62	126.11	127.62
2109	NASDAQ	VTHR	Fri, Mar 8, 2019	125.10	125.82	125.10	125.82
2108	NASDAQ	VTHR	Thu, Mar 7, 2019	126.43	126.49	126.04	126.04
2107	NASDAQ	VTHR	Wed, Mar 6, 2019	127.34	127.37	127.12	127.17
2106	NASDAQ	VTHR	Tue, Mar 5, 2019	128.24	128.41	127.79	128.27
2105	NASDAQ	VTHR	Mon, Mar 4, 2019	129.28	129.40	127.49	128.01
2104	NASDAQ	VTHR	Fri, Mar 1, 2019	128.79	129.04	128.18	128.91
2103	NASDAQ	VTHR	Thu, Feb 28, 2019	128.30	128.38	127.99	128.03
2102	NASDAQ	VTHR	Wed, Feb 27, 2019	128.12	128.37	127.60	128.30
2101	NASDAQ	VTHR	Tue, Feb 26, 2019	128.24	128.71	128.24	128.45
2100	NASDAQ	VTHR	Mon, Feb 25, 2019	129.04	129.29	128.47	128.47
2099	NASDAQ	VTHR	Fri, Feb 22, 2019	127.89	128.37	127.89	128.20
2098	NASDAQ	VTHR	Thu, Feb 21, 2019	127.64	127.64	127.29	127.51
2097	NASDAQ	VTHR	Wed, Feb 20, 2019	127.66	127.95	127.62	127.91
2096	NASDAQ	VTHR	Tue, Feb 19, 2019	127.21	127.93	127.21	127.87
2095	NASDAQ	VTHR	Fri, Feb 15, 2019	126.88	127.31	126.83	127.31
2094	NASDAQ	VTHR	Thu, Feb 14, 2019	125.74	126.46	125.38	126.29
2093	NASDAQ	VTHR	Wed, Feb 13, 2019	126.64	126.64	126.06	126.28
2092	NASDAQ	VTHR	Tue, Feb 12, 2019	125.20	125.99	125.20	125.91
2091	NASDAQ	VTHR	Mon, Feb 11, 2019	124.32	124.37	124.07	124.33
2090	NASDAQ	VTHR	Fri, Feb 8, 2019	123.34	124.04	123.04	124.04
2089	NASDAQ	VTHR	Thu, Feb 7, 2019	124.10	124.52	123.17	123.85
2088	NASDAQ	VTHR	Wed, Feb 6, 2019	124.99	125.17	124.75	125.05
2087	NASDAQ	VTHR	Tue, Feb 5, 2019	124.85	125.39	124.73	125.32
2086	NASDAQ	VTHR	Mon, Feb 4, 2019	123.94	124.54	123.60	124.53
2085	NASDAQ	VTHR	Fri, Feb 1, 2019	123.91	124.20	123.43	123.83
2084	NASDAQ	VTHR	Thu, Jan 31, 2019	122.77	123.82	122.54	123.70
2083	NASDAQ	VTHR	Wed, Jan 30, 2019	121.37	122.99	121.13	122.54
2082	NASDAQ	VTHR	Tue, Jan 29, 2019	121.00	121.05	120.63	120.70
2081	NASDAQ	VTHR	Mon, Jan 28, 2019	120.72	120.95	120.32	120.94
2080	NASDAQ	VTHR	Fri, Jan 25, 2019	121.53	122.08	121.53	121.73
2079	NASDAQ	VTHR	Thu, Jan 24, 2019	120.29	120.80	120.05	120.73
2078	NASDAQ	VTHR	Wed, Jan 23, 2019	120.69	120.90	119.41	120.26
2077	NASDAQ	VTHR	Tue, Jan 22, 2019	121.24	121.24	119.69	119.80
2076	NASDAQ	VTHR	Fri, Jan 18, 2019	121.23	122.22	120.98	121.82
2075	NASDAQ	VTHR	Thu, Jan 17, 2019	119.17	120.48	119.17	120.17
2074	NASDAQ	VTHR	Wed, Jan 16, 2019	119.44	119.84	119.31	119.52
2073	NASDAQ	VTHR	Tue, Jan 15, 2019	118.51	119.09	118.43	119.03
2072	NASDAQ	VTHR	Mon, Jan 14, 2019	117.78	118.23	117.64	117.91
2071	NASDAQ	VTHR	Fri, Jan 11, 2019	118.05	118.57	118.01	118.57
2070	NASDAQ	VTHR	Thu, Jan 10, 2019	117.58	118.59	117.58	118.54
2069	NASDAQ	VTHR	Wed, Jan 9, 2019	117.73	118.40	117.55	117.94
2068	NASDAQ	VTHR	Tue, Jan 8, 2019	117.10	117.49	116.12	117.42
2067	NASDAQ	VTHR	Mon, Jan 7, 2019	115.26	116.72	115.23	116.19
2066	NASDAQ	VTHR	Fri, Jan 4, 2019	113.80	115.24	113.75	115.23
2065	NASDAQ	VTHR	Thu, Jan 3, 2019	113.02	113.19	111.60	111.66
2064	NASDAQ	VTHR	Wed, Jan 2, 2019	112.51	114.27	112.24	114.05
2063	NASDAQ	VTHR	Mon, Dec 31, 2018	113.90	114.06	113.04	113.93
2062	NASDAQ	VTHR	Fri, Dec 28, 2018	113.73	114.56	112.51	112.63
2061	NASDAQ	VTHR	Thu, Dec 27, 2018	110.23	113.01	109.06	113.01
2060	NASDAQ	VTHR	Wed, Dec 26, 2018	107.65	110.85	106.88	110.85
2059	NASDAQ	VTHR	Mon, Dec 24, 2018	108.78	108.97	106.85	106.85
2058	NASDAQ	VTHR	Fri, Dec 21, 2018	112.32	113.49	109.23	109.80
2057	NASDAQ	VTHR	Thu, Dec 20, 2018	113.46	113.77	110.86	111.96
2056	NASDAQ	VTHR	Wed, Dec 19, 2018	115.80	116.95	113.40	114.00
2055	NASDAQ	VTHR	Tue, Dec 18, 2018	116.73	116.91	114.93	115.86
2054	NASDAQ	VTHR	Mon, Dec 17, 2018	117.82	117.82	114.98	115.67
2053	NASDAQ	VTHR	Fri, Dec 14, 2018	119.14	119.81	117.99	118.14
2052	NASDAQ	VTHR	Thu, Dec 13, 2018	121.10	121.10	119.90	120.54
2051	NASDAQ	VTHR	Wed, Dec 12, 2018	121.90	122.55	121.83	122.55
2050	NASDAQ	VTHR	Tue, Dec 11, 2018	122.13	122.13	120.51	120.51
2049	NASDAQ	VTHR	Mon, Dec 10, 2018	120.46	120.80	118.46	120.59
2048	NASDAQ	VTHR	Fri, Dec 7, 2018	123.19	123.27	120.29	120.89
2047	NASDAQ	VTHR	Thu, Dec 6, 2018	121.22	123.13	120.15	123.13
2046	NASDAQ	VTHR	Tue, Dec 4, 2018	127.01	127.01	123.76	123.76
2045	NASDAQ	VTHR	Mon, Dec 3, 2018	128.22	128.35	126.81	127.60
2044	NASDAQ	VTHR	Fri, Nov 30, 2018	125.05	126.04	125.05	126.04
2043	NASDAQ	VTHR	Thu, Nov 29, 2018	125.12	125.93	124.69	125.26
2042	NASDAQ	VTHR	Wed, Nov 28, 2018	123.22	125.60	122.79	125.60
2041	NASDAQ	VTHR	Tue, Nov 27, 2018	122.10	122.60	122.05	122.58
2040	NASDAQ	VTHR	Mon, Nov 26, 2018	122.18	122.39	121.87	122.37
2039	NASDAQ	VTHR	Fri, Nov 23, 2018	120.54	121.17	120.54	120.68
2038	NASDAQ	VTHR	Wed, Nov 21, 2018	121.47	122.11	121.36	121.50
2037	NASDAQ	VTHR	Tue, Nov 20, 2018	120.97	121.69	120.37	120.65
2036	NASDAQ	VTHR	Mon, Nov 19, 2018	124.86	124.86	122.52	122.92
2035	NASDAQ	VTHR	Fri, Nov 16, 2018	124.81	125.19	124.41	125.01
2034	NASDAQ	VTHR	Thu, Nov 15, 2018	122.82	125.00	122.19	124.97
2033	NASDAQ	VTHR	Wed, Nov 14, 2018	125.14	125.16	123.40	123.40
2032	NASDAQ	VTHR	Tue, Nov 13, 2018	124.91	125.45	124.27	124.50
2031	NASDAQ	VTHR	Mon, Nov 12, 2018	126.39	126.39	124.77	125.11
2030	NASDAQ	VTHR	Fri, Nov 9, 2018	127.65	127.65	126.40	127.15
2029	NASDAQ	VTHR	Thu, Nov 8, 2018	128.34	128.55	127.87	128.07
2028	NASDAQ	VTHR	Wed, Nov 7, 2018	127.11	128.51	126.86	128.51
2027	NASDAQ	VTHR	Tue, Nov 6, 2018	125.25	125.87	125.25	125.87
2026	NASDAQ	VTHR	Mon, Nov 5, 2018	124.88	125.22	124.31	125.05
2025	NASDAQ	VTHR	Fri, Nov 2, 2018	125.49	125.52	123.62	124.61
2024	NASDAQ	VTHR	Thu, Nov 1, 2018	124.29	125.30	124.12	125.22
2023	NASDAQ	VTHR	Wed, Oct 31, 2018	123.61	124.72	123.61	123.90
2022	NASDAQ	VTHR	Tue, Oct 30, 2018	120.18	121.71	120.18	120.95
2021	NASDAQ	VTHR	Mon, Oct 29, 2018	122.88	123.46	118.87	120.48
2020	NASDAQ	VTHR	Fri, Oct 26, 2018	121.35	122.57	120.00	121.26
2019	NASDAQ	VTHR	Thu, Oct 25, 2018	122.31	124.06	122.31	123.26
2018	NASDAQ	VTHR	Wed, Oct 24, 2018	124.86	125.00	121.88	121.88
2017	NASDAQ	VTHR	Tue, Oct 23, 2018	123.82	125.10	123.00	125.10
2016	NASDAQ	VTHR	Mon, Oct 22, 2018	126.67	126.67	125.83	125.83
2015	NASDAQ	VTHR	Fri, Oct 19, 2018	127.20	127.76	126.34	126.59
2014	NASDAQ	VTHR	Thu, Oct 18, 2018	128.25	128.25	125.97	126.59
2013	NASDAQ	VTHR	Wed, Oct 17, 2018	128.65	128.65	127.58	128.38
2012	NASDAQ	VTHR	Tue, Oct 16, 2018	126.59	128.54	126.59	128.54
2011	NASDAQ	VTHR	Mon, Oct 15, 2018	126.10	126.69	125.63	126.20
2010	NASDAQ	VTHR	Fri, Oct 12, 2018	126.77	126.77	124.62	126.25
2009	NASDAQ	VTHR	Thu, Oct 11, 2018	126.94	127.51	124.60	124.83
2008	NASDAQ	VTHR	Wed, Oct 10, 2018	131.47	131.47	127.29	127.29
2007	NASDAQ	VTHR	Tue, Oct 9, 2018	131.41	131.67	131.36	131.47
2006	NASDAQ	VTHR	Mon, Oct 8, 2018	131.42	131.91	130.74	131.74
2005	NASDAQ	VTHR	Fri, Oct 5, 2018	132.81	132.93	131.28	131.93
2004	NASDAQ	VTHR	Thu, Oct 4, 2018	133.26	133.47	132.02	132.37
2003	NASDAQ	VTHR	Wed, Oct 3, 2018	134.33	134.33	133.90	133.90
2002	NASDAQ	VTHR	Tue, Oct 2, 2018	133.93	134.02	133.69	133.74
2001	NASDAQ	VTHR	Mon, Oct 1, 2018	135.06	135.06	133.95	133.99
2000	NASDAQ	VTHR	Fri, Sep 28, 2018	133.68	133.91	133.66	133.69
1999	NASDAQ	VTHR	Thu, Sep 27, 2018	133.60	134.08	133.57	133.82
1998	NASDAQ	VTHR	Wed, Sep 26, 2018	133.82	134.36	133.70	133.70
1997	NASDAQ	VTHR	Tue, Sep 25, 2018	134.81	134.81	134.35	134.35
1996	NASDAQ	VTHR	Mon, Sep 24, 2018	134.56	134.66	134.18	134.47
1995	NASDAQ	VTHR	Fri, Sep 21, 2018	135.39	135.39	135.14	135.15
1994	NASDAQ	VTHR	Thu, Sep 20, 2018	134.93	135.23	134.34	135.17
1993	NASDAQ	VTHR	Wed, Sep 19, 2018	134.11	134.28	133.91	133.95
1992	NASDAQ	VTHR	Tue, Sep 18, 2018	133.80	134.15	133.68	134.11
1991	NASDAQ	VTHR	Mon, Sep 17, 2018	134.33	134.33	133.53	133.71
1990	NASDAQ	VTHR	Fri, Sep 14, 2018	134.00	134.26	133.76	134.17
1989	NASDAQ	VTHR	Thu, Sep 13, 2018	133.90	134.08	133.76	133.92
1988	NASDAQ	VTHR	Wed, Sep 12, 2018	133.22	133.45	132.90	133.34
1987	NASDAQ	VTHR	Tue, Sep 11, 2018	132.50	133.35	132.43	133.26
1986	NASDAQ	VTHR	Mon, Sep 10, 2018	133.17	133.17	132.84	132.90
1985	NASDAQ	VTHR	Fri, Sep 7, 2018	132.91	132.91	132.70	132.70
1984	NASDAQ	VTHR	Thu, Sep 6, 2018	133.56	133.56	132.52	132.95
1983	NASDAQ	VTHR	Wed, Sep 5, 2018	133.30	133.47	132.89	133.35
1982	NASDAQ	VTHR	Tue, Sep 4, 2018	133.87	133.87	133.36	133.61
1981	NASDAQ	VTHR	Fri, Aug 31, 2018	133.88	133.91	133.73	133.74
1980	NASDAQ	VTHR	Thu, Aug 30, 2018	134.30	134.41	133.90	133.90
1979	NASDAQ	VTHR	Wed, Aug 29, 2018	133.87	134.55	133.81	134.55
1978	NASDAQ	VTHR	Tue, Aug 28, 2018	133.84	134.02	133.60	134.02
1977	NASDAQ	VTHR	Mon, Aug 27, 2018	133.17	133.76	133.17	133.76
1976	NASDAQ	VTHR	Fri, Aug 24, 2018	132.37	132.82	132.37	132.82
1975	NASDAQ	VTHR	Thu, Aug 23, 2018	132.11	132.11	131.89	131.90
1974	NASDAQ	VTHR	Wed, Aug 22, 2018	132.32	132.41	132.16	132.16
1973	NASDAQ	VTHR	Tue, Aug 21, 2018	132.07	132.53	132.02	132.51
1972	NASDAQ	VTHR	Mon, Aug 20, 2018	131.45	131.79	131.34	131.74
1971	NASDAQ	VTHR	Fri, Aug 17, 2018	131.31	131.42	131.31	131.35
1970	NASDAQ	VTHR	Thu, Aug 16, 2018	130.40	131.07	130.40	131.00
1969	NASDAQ	VTHR	Wed, Aug 15, 2018	130.03	130.03	129.39	129.66
1968	NASDAQ	VTHR	Tue, Aug 14, 2018	130.32	131.02	130.32	130.97
1967	NASDAQ	VTHR	Mon, Aug 13, 2018	130.77	130.90	130.03	130.03
1966	NASDAQ	VTHR	Fri, Aug 10, 2018	130.69	130.89	130.46	130.58
1965	NASDAQ	VTHR	Thu, Aug 9, 2018	131.73	131.73	131.53	131.61
1964	NASDAQ	VTHR	Wed, Aug 8, 2018	131.50	131.52	131.31	131.45
1963	NASDAQ	VTHR	Tue, Aug 7, 2018	131.54	131.69	131.53	131.53
1962	NASDAQ	VTHR	Mon, Aug 6, 2018	130.71	131.21	130.52	131.10
1961	NASDAQ	VTHR	Fri, Aug 3, 2018	130.16	130.53	130.10	130.53
1960	NASDAQ	VTHR	Thu, Aug 2, 2018	128.58	130.11	128.58	130.11
1959	NASDAQ	VTHR	Wed, Aug 1, 2018	129.60	129.84	129.15	129.45
1958	NASDAQ	VTHR	Tue, Jul 31, 2018	129.16	129.82	129.16	129.51
1957	NASDAQ	VTHR	Mon, Jul 30, 2018	129.32	129.33	128.68	128.68
1956	NASDAQ	VTHR	Fri, Jul 27, 2018	131.18	131.18	129.27	129.55
1955	NASDAQ	VTHR	Thu, Jul 26, 2018	130.51	130.91	130.51	130.62
1954	NASDAQ	VTHR	Wed, Jul 25, 2018	129.81	130.81	129.64	130.81
1953	NASDAQ	VTHR	Tue, Jul 24, 2018	130.11	130.11	129.43	129.56
1952	NASDAQ	VTHR	Mon, Jul 23, 2018	129.05	129.57	129.05	129.41
1951	NASDAQ	VTHR	Fri, Jul 20, 2018	129.46	129.65	129.30	129.30
1950	NASDAQ	VTHR	Thu, Jul 19, 2018	129.36	129.79	129.36	129.46
1949	NASDAQ	VTHR	Wed, Jul 18, 2018	129.74	129.86	129.39	129.75
1948	NASDAQ	VTHR	Tue, Jul 17, 2018	128.53	129.60	128.53	129.54
1947	NASDAQ	VTHR	Mon, Jul 16, 2018	129.32	129.32	128.89	128.89
1946	NASDAQ	VTHR	Fri, Jul 13, 2018	128.92	129.40	128.92	129.28
1945	NASDAQ	VTHR	Thu, Jul 12, 2018	128.59	129.03	128.51	128.98
1944	NASDAQ	VTHR	Wed, Jul 11, 2018	128.35	128.52	128.18	128.27
1943	NASDAQ	VTHR	Tue, Jul 10, 2018	128.95	129.09	128.74	128.92
1942	NASDAQ	VTHR	Mon, Jul 9, 2018	127.92	128.52	127.92	128.49
1941	NASDAQ	VTHR	Fri, Jul 6, 2018	127.46	127.65	127.46	127.65
1940	NASDAQ	VTHR	Thu, Jul 5, 2018	125.92	126.33	125.79	126.33
1939	NASDAQ	VTHR	Tue, Jul 3, 2018	126.55	126.55	125.82	125.82
1938	NASDAQ	VTHR	Mon, Jul 2, 2018	124.79	125.35	124.51	125.35
1937	NASDAQ	VTHR	Fri, Jun 29, 2018	125.82	126.29	125.76	125.76
1936	NASDAQ	VTHR	Thu, Jun 28, 2018	124.74	125.21	124.21	125.21
1935	NASDAQ	VTHR	Wed, Jun 27, 2018	126.71	127.14	125.02	125.02
1934	NASDAQ	VTHR	Tue, Jun 26, 2018	126.00	126.58	126.00	126.50
1933	NASDAQ	VTHR	Mon, Jun 25, 2018	127.03	127.03	125.46	125.93
1932	NASDAQ	VTHR	Fri, Jun 22, 2018	128.21	128.21	127.74	127.81
1931	NASDAQ	VTHR	Thu, Jun 21, 2018	128.48	128.48	127.51	127.53
1930	NASDAQ	VTHR	Wed, Jun 20, 2018	128.42	128.65	128.31	128.44
1929	NASDAQ	VTHR	Tue, Jun 19, 2018	127.28	128.09	127.28	128.06
1928	NASDAQ	VTHR	Mon, Jun 18, 2018	128.04	128.59	128.00	128.59
1927	NASDAQ	VTHR	Fri, Jun 15, 2018	128.01	128.53	127.94	128.53
1926	NASDAQ	VTHR	Thu, Jun 14, 2018	128.79	128.97	128.60	128.65
1925	NASDAQ	VTHR	Wed, Jun 13, 2018	129.00	129.00	128.62	128.62
1924	NASDAQ	VTHR	Tue, Jun 12, 2018	128.96	129.00	128.68	128.95
1923	NASDAQ	VTHR	Mon, Jun 11, 2018	128.86	129.00	128.80	128.91
1922	NASDAQ	VTHR	Fri, Jun 8, 2018	127.69	128.46	127.69	128.46
1921	NASDAQ	VTHR	Thu, Jun 7, 2018	128.21	128.29	127.93	128.13
1920	NASDAQ	VTHR	Wed, Jun 6, 2018	127.34	128.04	127.34	128.04
1919	NASDAQ	VTHR	Tue, Jun 5, 2018	127.00	127.21	126.89	127.21
1918	NASDAQ	VTHR	Mon, Jun 4, 2018	126.90	127.01	126.76	126.98
1917	NASDAQ	VTHR	Fri, Jun 1, 2018	125.69	126.40	125.69	126.33
1916	NASDAQ	VTHR	Thu, May 31, 2018	125.61	125.61	125.06	125.06
1915	NASDAQ	VTHR	Wed, May 30, 2018	125.80	126.16	125.80	126.04
1914	NASDAQ	VTHR	Tue, May 29, 2018	124.96	124.99	123.77	124.09
1913	NASDAQ	VTHR	Fri, May 25, 2018	125.88	125.88	125.42	125.42
1912	NASDAQ	VTHR	Thu, May 24, 2018	125.81	125.81	125.43	125.43
1911	NASDAQ	VTHR	Wed, May 23, 2018	125.00	125.65	125.00	125.65
1910	NASDAQ	VTHR	Tue, May 22, 2018	126.32	126.32	126.28	126.28
1909	NASDAQ	VTHR	Mon, May 21, 2018	126.13	126.28	125.97	126.00
1908	NASDAQ	VTHR	Fri, May 18, 2018	125.37	125.37	125.20	125.20
1907	NASDAQ	VTHR	Thu, May 17, 2018	125.59	125.78	125.44	125.44
1906	NASDAQ	VTHR	Wed, May 16, 2018	125.10	125.66	125.10	125.44
1905	NASDAQ	VTHR	Tue, May 15, 2018	125.17	125.17	124.56	124.68
1904	NASDAQ	VTHR	Mon, May 14, 2018	126.09	126.09	125.49	125.58
1903	NASDAQ	VTHR	Fri, May 11, 2018	125.30	125.65	125.30	125.50
1902	NASDAQ	VTHR	Thu, May 10, 2018	124.47	125.37	124.47	125.27
1901	NASDAQ	VTHR	Wed, May 9, 2018	123.73	124.30	123.49	124.30
1900	NASDAQ	VTHR	Tue, May 8, 2018	122.79	123.08	122.75	123.03
1899	NASDAQ	VTHR	Mon, May 7, 2018	123.17	123.36	122.80	123.01
1898	NASDAQ	VTHR	Fri, May 4, 2018	121.80	122.00	121.79	122.00
1897	NASDAQ	VTHR	Thu, May 3, 2018	120.23	121.09	119.56	120.90
1896	NASDAQ	VTHR	Wed, May 2, 2018	122.07	122.07	121.06	121.06
1895	NASDAQ	VTHR	Tue, May 1, 2018	121.35	121.96	120.71	121.96
1894	NASDAQ	VTHR	Mon, Apr 30, 2018	122.74	123.22	121.74	121.75
1893	NASDAQ	VTHR	Fri, Apr 27, 2018	122.96	122.96	122.49	122.63
1892	NASDAQ	VTHR	Thu, Apr 26, 2018	121.93	122.70	121.93	122.52
1891	NASDAQ	VTHR	Wed, Apr 25, 2018	121.34	121.62	120.40	121.13
1890	NASDAQ	VTHR	Tue, Apr 24, 2018	123.02	123.02	121.05	121.19
1889	NASDAQ	VTHR	Mon, Apr 23, 2018	122.88	123.22	122.34	122.57
1888	NASDAQ	VTHR	Fri, Apr 20, 2018	123.82	123.82	122.65	122.72
1887	NASDAQ	VTHR	Thu, Apr 19, 2018	124.02	124.11	123.46	123.86
1886	NASDAQ	VTHR	Wed, Apr 18, 2018	124.28	124.75	124.28	124.45
1885	NASDAQ	VTHR	Tue, Apr 17, 2018	124.05	124.57	124.05	124.57
1884	NASDAQ	VTHR	Mon, Apr 16, 2018	122.67	123.21	122.67	123.01
1883	NASDAQ	VTHR	Fri, Apr 13, 2018	123.11	123.11	121.54	122.02
1882	NASDAQ	VTHR	Thu, Apr 12, 2018	122.04	122.75	122.04	122.40
1881	NASDAQ	VTHR	Wed, Apr 11, 2018	121.52	122.17	121.37	121.37
1880	NASDAQ	VTHR	Tue, Apr 10, 2018	121.40	122.09	121.21	121.88
1879	NASDAQ	VTHR	Mon, Apr 9, 2018	120.38	121.24	120.38	121.24
1878	NASDAQ	VTHR	Fri, Apr 6, 2018	121.42	121.59	119.19	119.71
1877	NASDAQ	VTHR	Thu, Apr 5, 2018	122.31	122.50	122.23	122.49
1876	NASDAQ	VTHR	Wed, Apr 4, 2018	118.52	121.58	118.52	121.52
1875	NASDAQ	VTHR	Tue, Apr 3, 2018	119.33	120.19	118.71	119.79
1874	NASDAQ	VTHR	Mon, Apr 2, 2018	120.99	120.99	117.45	117.81
1873	NASDAQ	VTHR	Thu, Mar 29, 2018	120.41	121.76	120.13	121.58
1872	NASDAQ	VTHR	Wed, Mar 28, 2018	119.93	120.35	119.93	120.35
1871	NASDAQ	VTHR	Tue, Mar 27, 2018	122.74	122.74	119.76	119.89
1870	NASDAQ	VTHR	Mon, Mar 26, 2018	120.86	122.09	119.68	122.05
1869	NASDAQ	VTHR	Fri, Mar 23, 2018	121.60	121.73	118.81	118.81
1868	NASDAQ	VTHR	Thu, Mar 22, 2018	123.27	123.43	121.43	121.56
1867	NASDAQ	VTHR	Wed, Mar 21, 2018	125.10	125.67	124.76	125.00
1866	NASDAQ	VTHR	Tue, Mar 20, 2018	124.97	125.16	124.97	124.97
1865	NASDAQ	VTHR	Mon, Mar 19, 2018	125.97	125.97	124.18	124.66
1864	NASDAQ	VTHR	Fri, Mar 16, 2018	126.38	126.83	126.38	126.54
1863	NASDAQ	VTHR	Thu, Mar 15, 2018	126.45	126.91	126.24	126.30
1862	NASDAQ	VTHR	Wed, Mar 14, 2018	127.57	127.57	126.26	126.32
1861	NASDAQ	VTHR	Tue, Mar 13, 2018	128.35	128.49	127.11	127.12
1860	NASDAQ	VTHR	Mon, Mar 12, 2018	128.10	128.32	127.70	127.85
1859	NASDAQ	VTHR	Fri, Mar 9, 2018	126.64	127.87	126.63	127.87
1858	NASDAQ	VTHR	Thu, Mar 8, 2018	125.82	125.82	125.40	125.70
1857	NASDAQ	VTHR	Wed, Mar 7, 2018	124.22	124.78	124.22	124.45
1856	NASDAQ	VTHR	Tue, Mar 6, 2018	125.40	125.40	124.60	125.20
1855	NASDAQ	VTHR	Mon, Mar 5, 2018	123.04	125.06	122.85	125.06
1854	NASDAQ	VTHR	Fri, Mar 2, 2018	121.69	123.59	121.46	123.59
1853	NASDAQ	VTHR	Thu, Mar 1, 2018	124.14	124.58	122.05	122.83
1852	NASDAQ	VTHR	Wed, Feb 28, 2018	125.82	125.99	124.15	124.16
1851	NASDAQ	VTHR	Tue, Feb 27, 2018	127.26	127.55	125.89	125.99
1850	NASDAQ	VTHR	Mon, Feb 26, 2018	126.45	127.21	126.40	127.12
1849	NASDAQ	VTHR	Fri, Feb 23, 2018	124.43	125.80	124.43	125.76
1848	NASDAQ	VTHR	Thu, Feb 22, 2018	124.45	124.97	123.84	124.11
1847	NASDAQ	VTHR	Wed, Feb 21, 2018	124.59	125.29	124.21	124.21
1846	NASDAQ	VTHR	Tue, Feb 20, 2018	124.95	125.13	124.47	124.49
1845	NASDAQ	VTHR	Fri, Feb 16, 2018	124.72	125.64	124.72	125.16
1844	NASDAQ	VTHR	Thu, Feb 15, 2018	124.41	124.88	123.59	124.68
1843	NASDAQ	VTHR	Wed, Feb 14, 2018	121.36	123.70	121.36	123.70
1842	NASDAQ	VTHR	Tue, Feb 13, 2018	120.98	121.97	120.87	121.72
1841	NASDAQ	VTHR	Mon, Feb 12, 2018	120.95	121.63	120.13	121.63
1840	NASDAQ	VTHR	Fri, Feb 9, 2018	119.45	119.75	116.04	119.75
1839	NASDAQ	VTHR	Thu, Feb 8, 2018	122.38	122.50	118.47	118.47
1838	NASDAQ	VTHR	Wed, Feb 7, 2018	123.01	124.16	122.58	122.58
1837	NASDAQ	VTHR	Tue, Feb 6, 2018	119.00	123.38	118.48	123.12
1836	NASDAQ	VTHR	Mon, Feb 5, 2018	125.02	126.13	120.73	121.23
1835	NASDAQ	VTHR	Fri, Feb 2, 2018	128.20	128.20	126.20	126.20
1834	NASDAQ	VTHR	Thu, Feb 1, 2018	128.54	129.45	128.54	128.61
1833	NASDAQ	VTHR	Wed, Jan 31, 2018	129.54	129.65	128.75	128.75
1832	NASDAQ	VTHR	Tue, Jan 30, 2018	129.16	129.55	128.78	129.03
1831	NASDAQ	VTHR	Mon, Jan 29, 2018	130.75	130.90	130.31	130.31
1830	NASDAQ	VTHR	Fri, Jan 26, 2018	130.34	131.16	130.15	131.16
1829	NASDAQ	VTHR	Thu, Jan 25, 2018	130.25	130.25	129.49	129.74
1828	NASDAQ	VTHR	Wed, Jan 24, 2018	130.05	130.43	129.40	129.77
1827	NASDAQ	VTHR	Tue, Jan 23, 2018	129.52	129.97	129.52	129.88
1826	NASDAQ	VTHR	Mon, Jan 22, 2018	128.36	129.21	128.36	129.17
1825	NASDAQ	VTHR	Fri, Jan 19, 2018	128.22	128.53	128.01	128.52
1824	NASDAQ	VTHR	Thu, Jan 18, 2018	128.16	128.20	127.83	127.91
1823	NASDAQ	VTHR	Wed, Jan 17, 2018	127.31	128.25	127.16	128.07
1822	NASDAQ	VTHR	Tue, Jan 16, 2018	128.32	128.41	126.99	127.09
1821	NASDAQ	VTHR	Fri, Jan 12, 2018	126.98	127.51	126.98	127.48
1820	NASDAQ	VTHR	Thu, Jan 11, 2018	126.11	126.77	126.08	126.74
1819	NASDAQ	VTHR	Wed, Jan 10, 2018	125.62	125.78	125.53	125.70
1818	NASDAQ	VTHR	Tue, Jan 9, 2018	125.98	126.23	125.84	125.85
1817	NASDAQ	VTHR	Mon, Jan 8, 2018	125.22	125.74	125.22	125.74
1816	NASDAQ	VTHR	Fri, Jan 5, 2018	125.40	125.44	124.97	125.44
1815	NASDAQ	VTHR	Thu, Jan 4, 2018	124.55	124.88	124.50	124.78
1814	NASDAQ	VTHR	Wed, Jan 3, 2018	123.82	124.32	123.82	124.25
1813	NASDAQ	VTHR	Tue, Jan 2, 2018	123.07	123.54	122.94	123.54
1812	NASDAQ	VTHR	Fri, Dec 29, 2017	123.23	123.23	122.82	122.82
1811	NASDAQ	VTHR	Thu, Dec 28, 2017	123.16	123.16	122.86	123.03
1810	NASDAQ	VTHR	Wed, Dec 27, 2017	122.81	123.07	122.81	122.92
1809	NASDAQ	VTHR	Tue, Dec 26, 2017	122.86	122.93	122.76	122.79
1808	NASDAQ	VTHR	Fri, Dec 22, 2017	122.95	123.00	122.73	122.91
1807	NASDAQ	VTHR	Thu, Dec 21, 2017	123.09	123.11	122.81	122.92
1806	NASDAQ	VTHR	Wed, Dec 20, 2017	123.21	123.21	122.60	122.63
1805	NASDAQ	VTHR	Tue, Dec 19, 2017	123.50	123.50	122.66	122.66
1804	NASDAQ	VTHR	Mon, Dec 18, 2017	123.08	123.28	123.08	123.24
1803	NASDAQ	VTHR	Fri, Dec 15, 2017	121.84	122.40	121.83	122.30
1802	NASDAQ	VTHR	Thu, Dec 14, 2017	122.09	122.09	121.29	121.30
1801	NASDAQ	VTHR	Wed, Dec 13, 2017	122.65	122.75	122.35	122.35
1800	NASDAQ	VTHR	Tue, Dec 12, 2017	122.40	122.57	122.34	122.34
1799	NASDAQ	VTHR	Mon, Dec 11, 2017	121.92	122.22	121.90	122.08
1798	NASDAQ	VTHR	Fri, Dec 8, 2017	121.76	121.91	121.65	121.78
1797	NASDAQ	VTHR	Thu, Dec 7, 2017	120.71	121.39	120.71	121.16
1796	NASDAQ	VTHR	Wed, Dec 6, 2017	120.58	120.94	120.58	120.80
1795	NASDAQ	VTHR	Tue, Dec 5, 2017	121.41	121.68	120.87	120.87
1794	NASDAQ	VTHR	Mon, Dec 4, 2017	122.49	122.57	121.45	121.45
1793	NASDAQ	VTHR	Fri, Dec 1, 2017	121.61	121.91	120.41	121.50
1792	NASDAQ	VTHR	Thu, Nov 30, 2017	121.48	122.15	121.33	121.83
1791	NASDAQ	VTHR	Wed, Nov 29, 2017	121.10	121.20	120.58	120.80
1790	NASDAQ	VTHR	Tue, Nov 28, 2017	119.77	120.82	119.77	120.82
1789	NASDAQ	VTHR	Mon, Nov 27, 2017	119.88	119.88	119.65	119.72
1788	NASDAQ	VTHR	Fri, Nov 24, 2017	119.65	119.77	119.65	119.76
1787	NASDAQ	VTHR	Wed, Nov 22, 2017	119.75	119.75	119.50	119.59
1786	NASDAQ	VTHR	Tue, Nov 21, 2017	119.00	119.60	119.00	119.53
1785	NASDAQ	VTHR	Mon, Nov 20, 2017	118.62	118.78	118.57	118.78
1784	NASDAQ	VTHR	Fri, Nov 17, 2017	118.68	118.68	118.51	118.62
1783	NASDAQ	VTHR	Thu, Nov 16, 2017	118.48	118.84	118.48	118.71
1782	NASDAQ	VTHR	Wed, Nov 15, 2017	117.21	117.84	117.21	117.78
1781	NASDAQ	VTHR	Tue, Nov 14, 2017	118.18	118.24	118.16	118.24
1780	NASDAQ	VTHR	Mon, Nov 13, 2017	118.21	118.52	118.03	118.46
1779	NASDAQ	VTHR	Fri, Nov 10, 2017	118.30	118.40	118.21	118.40
1778	NASDAQ	VTHR	Thu, Nov 9, 2017	118.57	118.57	117.70	118.47
1777	NASDAQ	VTHR	Wed, Nov 8, 2017	118.55	118.91	118.53	118.83
1776	NASDAQ	VTHR	Tue, Nov 7, 2017	118.97	118.97	118.48	118.62
1775	NASDAQ	VTHR	Mon, Nov 6, 2017	118.85	118.99	118.77	118.92
1774	NASDAQ	VTHR	Fri, Nov 3, 2017	118.35	118.71	118.35	118.66
1773	NASDAQ	VTHR	Thu, Nov 2, 2017	118.27	118.38	117.90	118.38
1772	NASDAQ	VTHR	Wed, Nov 1, 2017	118.72	118.72	118.13	118.31
1771	NASDAQ	VTHR	Tue, Oct 31, 2017	118.13	118.29	118.09	118.29
1770	NASDAQ	VTHR	Mon, Oct 30, 2017	118.36	118.36	117.91	117.91
1769	NASDAQ	VTHR	Fri, Oct 27, 2017	117.94	118.38	117.94	118.38
1768	NASDAQ	VTHR	Thu, Oct 26, 2017	117.78	117.78	117.55	117.55
1767	NASDAQ	VTHR	Wed, Oct 25, 2017	117.66	117.67	116.94	117.40
1766	NASDAQ	VTHR	Tue, Oct 24, 2017	117.94	118.09	117.88	117.96
1765	NASDAQ	VTHR	Mon, Oct 23, 2017	118.54	118.54	117.75	117.75
1764	NASDAQ	VTHR	Fri, Oct 20, 2017	117.80	118.28	117.80	118.25
1763	NASDAQ	VTHR	Thu, Oct 19, 2017	117.16	117.63	117.16	117.63
1762	NASDAQ	VTHR	Wed, Oct 18, 2017	117.66	117.77	117.55	117.74
1761	NASDAQ	VTHR	Tue, Oct 17, 2017	117.46	117.53	117.32	117.39
1760	NASDAQ	VTHR	Mon, Oct 16, 2017	117.55	117.55	117.33	117.43
1759	NASDAQ	VTHR	Fri, Oct 13, 2017	117.33	117.50	117.27	117.29
1758	NASDAQ	VTHR	Thu, Oct 12, 2017	117.13	117.38	117.12	117.31
1757	NASDAQ	VTHR	Wed, Oct 11, 2017	117.14	117.38	117.11	117.38
1756	NASDAQ	VTHR	Tue, Oct 10, 2017	117.40	117.40	117.03	117.15
1755	NASDAQ	VTHR	Mon, Oct 9, 2017	117.36	117.36	116.88	116.88
1754	NASDAQ	VTHR	Fri, Oct 6, 2017	116.96	117.13	116.96	117.13
1753	NASDAQ	VTHR	Thu, Oct 5, 2017	116.82	117.27	116.82	117.27
1752	NASDAQ	VTHR	Wed, Oct 4, 2017	116.59	116.78	116.47	116.60
1751	NASDAQ	VTHR	Tue, Oct 3, 2017	116.47	116.53	116.30	116.52
1750	NASDAQ	VTHR	Mon, Oct 2, 2017	115.93	116.23	115.87	116.23
1749	NASDAQ	VTHR	Fri, Sep 29, 2017	115.33	115.73	115.28	115.73
1748	NASDAQ	VTHR	Thu, Sep 28, 2017	115.00	115.28	114.98	115.26
1747	NASDAQ	VTHR	Wed, Sep 27, 2017	115.07	115.07	114.65	115.05
1746	NASDAQ	VTHR	Tue, Sep 26, 2017	115.28	115.32	115.14	115.18
1745	NASDAQ	VTHR	Mon, Sep 25, 2017	115.23	115.23	114.75	115.00
1744	NASDAQ	VTHR	Fri, Sep 22, 2017	115.07	115.19	115.07	115.19
1743	NASDAQ	VTHR	Thu, Sep 21, 2017	115.09	115.32	115.09	115.28
1742	NASDAQ	VTHR	Wed, Sep 20, 2017	115.35	115.49	115.07	115.45
1741	NASDAQ	VTHR	Tue, Sep 19, 2017	115.23	115.37	115.23	115.33
1740	NASDAQ	VTHR	Mon, Sep 18, 2017	115.00	115.33	115.00	115.21
1739	NASDAQ	VTHR	Fri, Sep 15, 2017	114.66	114.94	114.66	114.92
1738	NASDAQ	VTHR	Thu, Sep 14, 2017	114.65	114.81	114.64	114.72
1737	NASDAQ	VTHR	Wed, Sep 13, 2017	114.62	114.77	114.62	114.69
1736	NASDAQ	VTHR	Tue, Sep 12, 2017	114.61	114.69	114.48	114.65
1735	NASDAQ	VTHR	Mon, Sep 11, 2017	113.86	114.31	113.86	114.26
1734	NASDAQ	VTHR	Fri, Sep 8, 2017	112.86	113.25	112.86	113.08
1733	NASDAQ	VTHR	Thu, Sep 7, 2017	113.45	113.45	113.01	113.06
1732	NASDAQ	VTHR	Wed, Sep 6, 2017	113.25	113.39	112.95	113.22
1731	NASDAQ	VTHR	Tue, Sep 5, 2017	113.67	113.67	112.49	112.83
1730	NASDAQ	VTHR	Fri, Sep 1, 2017	113.79	113.94	113.75	113.85
1729	NASDAQ	VTHR	Thu, Aug 31, 2017	113.18	113.62	113.17	113.62
1728	NASDAQ	VTHR	Wed, Aug 30, 2017	112.32	112.86	112.32	112.77
1727	NASDAQ	VTHR	Tue, Aug 29, 2017	111.53	112.13	111.53	112.13
1726	NASDAQ	VTHR	Mon, Aug 28, 2017	112.22	112.26	112.00	112.03
1725	NASDAQ	VTHR	Fri, Aug 25, 2017	112.38	112.45	112.09	112.18
1724	NASDAQ	VTHR	Thu, Aug 24, 2017	112.37	112.37	111.88	111.88
1723	NASDAQ	VTHR	Wed, Aug 23, 2017	111.65	112.19	111.65	112.02
1722	NASDAQ	VTHR	Tue, Aug 22, 2017	111.62	112.43	111.62	112.37
1721	NASDAQ	VTHR	Mon, Aug 21, 2017	111.17	111.23	110.92	111.22
1720	NASDAQ	VTHR	Fri, Aug 18, 2017	111.14	111.45	110.90	111.21
1719	NASDAQ	VTHR	Thu, Aug 17, 2017	112.69	112.69	111.37	111.37
1718	NASDAQ	VTHR	Wed, Aug 16, 2017	113.19	113.37	112.97	113.00
1717	NASDAQ	VTHR	Tue, Aug 15, 2017	113.23	113.23	112.84	112.86
1716	NASDAQ	VTHR	Mon, Aug 14, 2017	112.64	113.02	112.64	113.02
1715	NASDAQ	VTHR	Fri, Aug 11, 2017	111.53	112.01	111.53	111.77
1714	NASDAQ	VTHR	Thu, Aug 10, 2017	113.02	113.02	111.90	111.90
1713	NASDAQ	VTHR	Wed, Aug 9, 2017	112.93	113.20	112.93	113.20
1712	NASDAQ	VTHR	Tue, Aug 8, 2017	113.50	114.16	113.48	113.67
1711	NASDAQ	VTHR	Mon, Aug 7, 2017	113.69	113.71	113.42	113.69
1710	NASDAQ	VTHR	Fri, Aug 4, 2017	113.52	113.52	113.38	113.45
1709	NASDAQ	VTHR	Thu, Aug 3, 2017	113.49	113.49	113.14	113.22
1708	NASDAQ	VTHR	Wed, Aug 2, 2017	113.73	113.73	113.07	113.46
1707	NASDAQ	VTHR	Tue, Aug 1, 2017	114.03	114.03	113.42	113.51
1706	NASDAQ	VTHR	Mon, Jul 31, 2017	113.62	113.62	113.33	113.37
1705	NASDAQ	VTHR	Fri, Jul 28, 2017	113.64	113.64	113.20	113.43
1704	NASDAQ	VTHR	Thu, Jul 27, 2017	114.12	114.12	113.11	113.11
1703	NASDAQ	VTHR	Wed, Jul 26, 2017	113.89	113.93	113.82	113.90
1702	NASDAQ	VTHR	Tue, Jul 25, 2017	113.88	113.97	113.72	113.86
1701	NASDAQ	VTHR	Mon, Jul 24, 2017	113.34	113.40	113.34	113.40
1700	NASDAQ	VTHR	Fri, Jul 21, 2017	113.34	113.46	113.20	113.36
1699	NASDAQ	VTHR	Thu, Jul 20, 2017	113.81	113.81	113.53	113.68
1698	NASDAQ	VTHR	Wed, Jul 19, 2017	113.19	113.54	113.19	113.51
1697	NASDAQ	VTHR	Tue, Jul 18, 2017	112.67	112.89	112.63	112.89
1696	NASDAQ	VTHR	Mon, Jul 17, 2017	112.91	113.01	112.78	112.80
1695	NASDAQ	VTHR	Fri, Jul 14, 2017	112.31	113.03	112.31	112.81
1694	NASDAQ	VTHR	Thu, Jul 13, 2017	112.32	112.39	112.08	112.37
1693	NASDAQ	VTHR	Wed, Jul 12, 2017	112.13	112.22	112.13	112.22
1692	NASDAQ	VTHR	Tue, Jul 11, 2017	111.38	111.38	111.02	111.37
1691	NASDAQ	VTHR	Mon, Jul 10, 2017	111.11	111.54	111.10	111.45
1690	NASDAQ	VTHR	Fri, Jul 7, 2017	111.23	111.33	111.19	111.25
1689	NASDAQ	VTHR	Thu, Jul 6, 2017	111.11	111.27	110.45	110.56
1688	NASDAQ	VTHR	Wed, Jul 5, 2017	111.81	111.81	111.32	111.65
1687	NASDAQ	VTHR	Mon, Jul 3, 2017	111.72	111.92	111.72	111.82
1686	NASDAQ	VTHR	Fri, Jun 30, 2017	111.37	111.65	111.29	111.39
1685	NASDAQ	VTHR	Thu, Jun 29, 2017	111.88	111.88	110.99	111.12
1684	NASDAQ	VTHR	Wed, Jun 28, 2017	111.39	112.09	111.39	112.09
1683	NASDAQ	VTHR	Tue, Jun 27, 2017	112.12	112.38	111.40	111.40
1682	NASDAQ	VTHR	Mon, Jun 26, 2017	112.78	112.78	112.32	112.40
1681	NASDAQ	VTHR	Fri, Jun 23, 2017	112.11	112.36	112.09	112.31
1680	NASDAQ	VTHR	Thu, Jun 22, 2017	112.15	112.37	111.97	112.23
1679	NASDAQ	VTHR	Wed, Jun 21, 2017	112.19	112.31	111.83	111.90
1678	NASDAQ	VTHR	Tue, Jun 20, 2017	112.67	112.71	112.22	112.24
1677	NASDAQ	VTHR	Mon, Jun 19, 2017	112.76	112.93	112.57	112.92
1676	NASDAQ	VTHR	Fri, Jun 16, 2017	111.93	112.01	111.61	112.01
1675	NASDAQ	VTHR	Thu, Jun 15, 2017	111.71	112.01	111.71	112.01
1674	NASDAQ	VTHR	Wed, Jun 14, 2017	112.66	112.66	112.03	112.13
1673	NASDAQ	VTHR	Tue, Jun 13, 2017	112.29	112.46	112.16	112.38
1672	NASDAQ	VTHR	Mon, Jun 12, 2017	111.53	111.84	111.53	111.69
1671	NASDAQ	VTHR	Fri, Jun 9, 2017	112.56	112.58	111.91	111.91
1670	NASDAQ	VTHR	Thu, Jun 8, 2017	111.77	112.08	111.76	112.01
1669	NASDAQ	VTHR	Wed, Jun 7, 2017	111.91	111.91	111.64	111.83
1668	NASDAQ	VTHR	Tue, Jun 6, 2017	111.78	111.92	111.65	111.66
1667	NASDAQ	VTHR	Mon, Jun 5, 2017	112.01	112.05	112.01	112.04
1666	NASDAQ	VTHR	Fri, Jun 2, 2017	111.89	112.29	111.67	112.14
1665	NASDAQ	VTHR	Thu, Jun 1, 2017	110.90	111.67	110.90	111.67
1664	NASDAQ	VTHR	Wed, May 31, 2017	110.68	110.76	110.37	110.75
1663	NASDAQ	VTHR	Tue, May 30, 2017	110.96	110.96	110.70	110.83
1662	NASDAQ	VTHR	Fri, May 26, 2017	111.18	111.18	110.87	110.91
1661	NASDAQ	VTHR	Thu, May 25, 2017	110.91	111.03	110.91	110.95
1660	NASDAQ	VTHR	Wed, May 24, 2017	110.30	110.36	110.23	110.23
1659	NASDAQ	VTHR	Tue, May 23, 2017	110.33	110.33	110.00	110.17
1658	NASDAQ	VTHR	Mon, May 22, 2017	109.78	110.01	109.75	109.90
1657	NASDAQ	VTHR	Fri, May 19, 2017	109.06	109.74	109.06	109.40
1656	NASDAQ	VTHR	Thu, May 18, 2017	108.37	108.99	108.12	108.74
1655	NASDAQ	VTHR	Wed, May 17, 2017	109.50	109.50	108.47	108.58
1654	NASDAQ	VTHR	Tue, May 16, 2017	110.77	110.77	110.21	110.31
1653	NASDAQ	VTHR	Mon, May 15, 2017	110.12	110.39	110.12	110.37
1652	NASDAQ	VTHR	Fri, May 12, 2017	110.04	110.06	109.74	109.78
1651	NASDAQ	VTHR	Thu, May 11, 2017	110.20	110.20	109.48	110.00
1650	NASDAQ	VTHR	Wed, May 10, 2017	110.17	110.32	109.96	110.26
1649	NASDAQ	VTHR	Tue, May 9, 2017	110.43	110.43	110.00	110.00
1648	NASDAQ	VTHR	Mon, May 8, 2017	110.43	110.43	109.92	110.05
1647	NASDAQ	VTHR	Fri, May 5, 2017	109.93	110.18	109.88	110.18
1646	NASDAQ	VTHR	Thu, May 4, 2017	109.78	109.78	109.40	109.62
1645	NASDAQ	VTHR	Wed, May 3, 2017	109.79	109.79	109.40	109.50
1644	NASDAQ	VTHR	Tue, May 2, 2017	110.15	110.15	109.71	109.87
1643	NASDAQ	VTHR	Mon, May 1, 2017	110.00	110.02	109.70	110.01
1642	NASDAQ	VTHR	Fri, Apr 28, 2017	109.87	109.87	109.59	109.62
1641	NASDAQ	VTHR	Thu, Apr 27, 2017	110.19	110.19	109.86	110.08
1640	NASDAQ	VTHR	Wed, Apr 26, 2017	110.15	110.38	109.95	109.95
1639	NASDAQ	VTHR	Tue, Apr 25, 2017	109.68	110.02	109.68	110.02
1638	NASDAQ	VTHR	Mon, Apr 24, 2017	109.14	109.35	108.99	109.22
1637	NASDAQ	VTHR	Fri, Apr 21, 2017	108.39	108.39	107.89	108.11
1636	NASDAQ	VTHR	Thu, Apr 20, 2017	107.88	108.51	107.83	108.51
1635	NASDAQ	VTHR	Wed, Apr 19, 2017	107.80	108.04	107.45	107.45
1634	NASDAQ	VTHR	Tue, Apr 18, 2017	107.37	107.77	107.37	107.62
1633	NASDAQ	VTHR	Mon, Apr 17, 2017	107.31	107.58	107.27	107.58
1632	NASDAQ	VTHR	Thu, Apr 13, 2017	107.42	107.80	106.98	107.01
1631	NASDAQ	VTHR	Wed, Apr 12, 2017	108.06	108.06	107.68	107.71
1630	NASDAQ	VTHR	Tue, Apr 11, 2017	108.10	108.10	107.52	108.03
1629	NASDAQ	VTHR	Mon, Apr 10, 2017	108.36	108.62	108.02	108.17
1628	NASDAQ	VTHR	Fri, Apr 7, 2017	108.18	108.28	108.11	108.19
1627	NASDAQ	VTHR	Thu, Apr 6, 2017	108.00	108.42	108.00	108.15
1626	NASDAQ	VTHR	Wed, Apr 5, 2017	108.94	109.04	108.35	108.35
1625	NASDAQ	VTHR	Tue, Apr 4, 2017	108.13	108.30	108.04	108.30
1624	NASDAQ	VTHR	Mon, Apr 3, 2017	108.63	108.63	107.84	108.26
1623	NASDAQ	VTHR	Fri, Mar 31, 2017	108.71	108.80	108.59	108.63
1622	NASDAQ	VTHR	Thu, Mar 30, 2017	108.48	108.82	108.48	108.67
1621	NASDAQ	VTHR	Wed, Mar 29, 2017	108.12	108.39	108.09	108.36
1620	NASDAQ	VTHR	Tue, Mar 28, 2017	107.32	108.29	107.32	108.29
1619	NASDAQ	VTHR	Mon, Mar 27, 2017	106.38	107.43	106.38	107.33
1618	NASDAQ	VTHR	Fri, Mar 24, 2017	107.64	107.87	107.15	107.15
1617	NASDAQ	VTHR	Thu, Mar 23, 2017	107.36	108.08	107.36	107.48
1616	NASDAQ	VTHR	Wed, Mar 22, 2017	107.37	107.63	107.06	107.62
1615	NASDAQ	VTHR	Tue, Mar 21, 2017	109.66	109.66	107.61	107.61
1614	NASDAQ	VTHR	Mon, Mar 20, 2017	109.48	109.51	109.06	109.25
1613	NASDAQ	VTHR	Fri, Mar 17, 2017	109.77	109.77	109.49	109.56
1612	NASDAQ	VTHR	Thu, Mar 16, 2017	109.64	109.86	109.57	109.57
1611	NASDAQ	VTHR	Wed, Mar 15, 2017	109.08	109.90	109.06	109.68
1610	NASDAQ	VTHR	Tue, Mar 14, 2017	108.73	108.75	108.31	108.75
1609	NASDAQ	VTHR	Mon, Mar 13, 2017	108.89	109.22	108.89	109.01
1608	NASDAQ	VTHR	Fri, Mar 10, 2017	109.24	109.24	108.60	108.96
1607	NASDAQ	VTHR	Thu, Mar 9, 2017	108.75	108.82	108.29	108.60
1606	NASDAQ	VTHR	Wed, Mar 8, 2017	108.94	109.06	108.59	108.59
1605	NASDAQ	VTHR	Tue, Mar 7, 2017	109.38	109.38	108.93	108.95
1604	NASDAQ	VTHR	Mon, Mar 6, 2017	109.02	109.35	108.97	109.30
1603	NASDAQ	VTHR	Fri, Mar 3, 2017	109.65	109.70	109.34	109.70
1602	NASDAQ	VTHR	Thu, Mar 2, 2017	110.46	110.46	109.60	109.66
1601	NASDAQ	VTHR	Wed, Mar 1, 2017	109.82	110.45	109.82	110.27
1600	NASDAQ	VTHR	Tue, Feb 28, 2017	108.95	109.25	108.67	108.80
1599	NASDAQ	VTHR	Mon, Feb 27, 2017	108.99	109.31	108.81	109.28
1598	NASDAQ	VTHR	Fri, Feb 24, 2017	108.23	108.98	108.23	108.98
1597	NASDAQ	VTHR	Thu, Feb 23, 2017	109.24	109.24	108.58	108.79
1596	NASDAQ	VTHR	Wed, Feb 22, 2017	109.04	109.04	108.78	108.85
1595	NASDAQ	VTHR	Tue, Feb 21, 2017	108.67	109.06	108.67	109.02
1594	NASDAQ	VTHR	Fri, Feb 17, 2017	107.95	108.28	107.90	108.28
1593	NASDAQ	VTHR	Thu, Feb 16, 2017	108.18	108.42	107.78	108.17
1592	NASDAQ	VTHR	Wed, Feb 15, 2017	107.71	108.38	107.71	108.38
1591	NASDAQ	VTHR	Tue, Feb 14, 2017	107.34	107.74	107.13	107.64
1590	NASDAQ	VTHR	Mon, Feb 13, 2017	106.98	107.43	106.98	107.27
1589	NASDAQ	VTHR	Fri, Feb 10, 2017	106.56	106.90	106.55	106.72
1588	NASDAQ	VTHR	Thu, Feb 9, 2017	106.03	106.52	105.79	106.41
1587	NASDAQ	VTHR	Wed, Feb 8, 2017	105.50	105.70	105.31	105.65
1586	NASDAQ	VTHR	Tue, Feb 7, 2017	105.68	105.85	105.49	105.49
1585	NASDAQ	VTHR	Mon, Feb 6, 2017	105.88	105.88	105.59	105.60
1584	NASDAQ	VTHR	Fri, Feb 3, 2017	105.57	105.88	105.40	105.85
1583	NASDAQ	VTHR	Thu, Feb 2, 2017	104.90	105.13	104.72	104.98
1582	NASDAQ	VTHR	Wed, Feb 1, 2017	105.42	105.53	104.68	104.95
1581	NASDAQ	VTHR	Tue, Jan 31, 2017	104.51	104.99	104.41	104.89
1580	NASDAQ	VTHR	Mon, Jan 30, 2017	105.01	105.01	104.32	104.90
1579	NASDAQ	VTHR	Fri, Jan 27, 2017	105.73	105.73	105.49	105.55
1578	NASDAQ	VTHR	Thu, Jan 26, 2017	105.90	105.98	105.67	105.76
1577	NASDAQ	VTHR	Wed, Jan 25, 2017	105.59	105.90	105.49	105.90
1576	NASDAQ	VTHR	Tue, Jan 24, 2017	104.23	105.13	104.23	105.08
1575	NASDAQ	VTHR	Mon, Jan 23, 2017	104.26	104.46	104.04	104.27
1574	NASDAQ	VTHR	Fri, Jan 20, 2017	104.79	104.79	104.33	104.33
1573	NASDAQ	VTHR	Thu, Jan 19, 2017	104.55	104.65	104.06	104.19
1572	NASDAQ	VTHR	Wed, Jan 18, 2017	104.34	104.54	104.34	104.44
1571	NASDAQ	VTHR	Tue, Jan 17, 2017	105.00	105.00	104.17	104.34
1570	NASDAQ	VTHR	Fri, Jan 13, 2017	104.94	105.01	104.67	104.83
1569	NASDAQ	VTHR	Thu, Jan 12, 2017	104.77	104.77	103.83	104.55
1568	NASDAQ	VTHR	Wed, Jan 11, 2017	104.71	104.81	104.18	104.81
1567	NASDAQ	VTHR	Tue, Jan 10, 2017	104.53	104.91	104.33	104.79
1566	NASDAQ	VTHR	Mon, Jan 9, 2017	104.97	104.97	104.42	104.45
1565	NASDAQ	VTHR	Fri, Jan 6, 2017	104.74	105.09	104.51	104.81
1564	NASDAQ	VTHR	Thu, Jan 5, 2017	104.68	104.68	104.19	104.54
1563	NASDAQ	VTHR	Wed, Jan 4, 2017	104.25	104.74	104.25	104.73
1562	NASDAQ	VTHR	Tue, Jan 3, 2017	104.23	104.23	103.26	103.54
1561	NASDAQ	VTHR	Fri, Dec 30, 2016	103.84	103.84	103.17	103.25
1560	NASDAQ	VTHR	Thu, Dec 29, 2016	103.63	103.72	103.27	103.45
1559	NASDAQ	VTHR	Wed, Dec 28, 2016	104.55	104.55	103.50	103.55
1558	NASDAQ	VTHR	Tue, Dec 27, 2016	104.11	104.56	104.11	104.41
1557	NASDAQ	VTHR	Fri, Dec 23, 2016	104.08	104.16	103.93	104.16
1556	NASDAQ	VTHR	Thu, Dec 22, 2016	104.20	104.20	103.76	103.94
1555	NASDAQ	VTHR	Wed, Dec 21, 2016	104.42	104.42	104.20	104.20
1554	NASDAQ	VTHR	Tue, Dec 20, 2016	104.62	104.62	104.25	104.34
1553	NASDAQ	VTHR	Mon, Dec 19, 2016	103.80	104.24	103.80	104.10
1552	NASDAQ	VTHR	Fri, Dec 16, 2016	103.79	104.34	103.72	103.72
1551	NASDAQ	VTHR	Thu, Dec 15, 2016	103.67	104.45	103.67	103.92
1550	NASDAQ	VTHR	Wed, Dec 14, 2016	104.50	104.50	103.51	103.58
1549	NASDAQ	VTHR	Tue, Dec 13, 2016	104.86	105.25	104.78	105.07
1548	NASDAQ	VTHR	Mon, Dec 12, 2016	104.84	104.84	104.23	104.36
1547	NASDAQ	VTHR	Fri, Dec 9, 2016	104.37	104.57	104.31	104.57
1546	NASDAQ	VTHR	Thu, Dec 8, 2016	103.86	104.19	103.70	104.05
1545	NASDAQ	VTHR	Wed, Dec 7, 2016	102.43	103.77	102.43	103.54
1544	NASDAQ	VTHR	Tue, Dec 6, 2016	101.88	102.36	101.88	102.34
1543	NASDAQ	VTHR	Mon, Dec 5, 2016	101.86	102.11	101.83	101.90
1542	NASDAQ	VTHR	Fri, Dec 2, 2016	101.28	101.54	101.18	101.18
1541	NASDAQ	VTHR	Thu, Dec 1, 2016	101.98	101.98	101.05	101.05
1540	NASDAQ	VTHR	Wed, Nov 30, 2016	102.13	102.13	101.62	101.62
1539	NASDAQ	VTHR	Tue, Nov 29, 2016	101.56	102.13	101.56	102.10
1538	NASDAQ	VTHR	Mon, Nov 28, 2016	102.26	102.26	101.65	101.65
1537	NASDAQ	VTHR	Fri, Nov 25, 2016	102.04	102.26	102.04	102.26
1536	NASDAQ	VTHR	Wed, Nov 23, 2016	101.59	101.83	101.47	101.83
1535	NASDAQ	VTHR	Tue, Nov 22, 2016	101.83	101.83	101.47	101.74
1534	NASDAQ	VTHR	Mon, Nov 21, 2016	101.16	101.44	101.11	101.31
1533	NASDAQ	VTHR	Fri, Nov 18, 2016	100.74	101.00	100.64	100.74
1532	NASDAQ	VTHR	Thu, Nov 17, 2016	100.53	100.93	100.53	100.72
1531	NASDAQ	VTHR	Wed, Nov 16, 2016	100.21	100.27	100.21	100.27
1530	NASDAQ	VTHR	Tue, Nov 15, 2016	100.00	100.46	99.90	100.44
1529	NASDAQ	VTHR	Mon, Nov 14, 2016	99.77	99.79	99.57	99.75
1528	NASDAQ	VTHR	Fri, Nov 11, 2016	99.23	99.53	99.00	99.53
1527	NASDAQ	VTHR	Thu, Nov 10, 2016	99.68	100.00	99.17	99.40
1526	NASDAQ	VTHR	Wed, Nov 9, 2016	97.44	99.15	97.21	99.13
1525	NASDAQ	VTHR	Tue, Nov 8, 2016	97.76	98.09	97.17	98.02
1524	NASDAQ	VTHR	Mon, Nov 7, 2016	97.20	97.45	96.83	97.45
1523	NASDAQ	VTHR	Fri, Nov 4, 2016	95.52	95.99	95.33	95.33
1522	NASDAQ	VTHR	Thu, Nov 3, 2016	95.90	95.96	95.26	95.39
1521	NASDAQ	VTHR	Wed, Nov 2, 2016	96.36	96.41	95.77	95.77
1520	NASDAQ	VTHR	Tue, Nov 1, 2016	96.80	96.80	96.35	96.35
1519	NASDAQ	VTHR	Mon, Oct 31, 2016	97.29	97.50	97.20	97.29
1518	NASDAQ	VTHR	Fri, Oct 28, 2016	97.59	97.67	97.08	97.28
1517	NASDAQ	VTHR	Thu, Oct 27, 2016	98.42	98.42	97.54	97.54
1516	NASDAQ	VTHR	Wed, Oct 26, 2016	97.81	98.18	97.67	97.85
1515	NASDAQ	VTHR	Tue, Oct 25, 2016	98.39	98.44	98.16	98.16
1514	NASDAQ	VTHR	Mon, Oct 24, 2016	98.79	98.84	98.45	98.57
1513	NASDAQ	VTHR	Fri, Oct 21, 2016	97.98	98.21	97.98	98.21
1512	NASDAQ	VTHR	Thu, Oct 20, 2016	98.23	98.42	97.83	98.22
1511	NASDAQ	VTHR	Wed, Oct 19, 2016	98.10	98.49	98.07	98.36
1510	NASDAQ	VTHR	Tue, Oct 18, 2016	98.16	98.25	98.03	98.06
1509	NASDAQ	VTHR	Mon, Oct 17, 2016	97.61	97.64	97.42	97.43
1508	NASDAQ	VTHR	Fri, Oct 14, 2016	98.37	98.41	97.86	97.93
1507	NASDAQ	VTHR	Thu, Oct 13, 2016	97.30	98.00	96.98	97.76
1506	NASDAQ	VTHR	Wed, Oct 12, 2016	98.13	98.19	97.95	98.07
1505	NASDAQ	VTHR	Tue, Oct 11, 2016	98.94	99.01	97.60	97.92
1504	NASDAQ	VTHR	Mon, Oct 10, 2016	99.41	99.44	99.14	99.44
1503	NASDAQ	VTHR	Fri, Oct 7, 2016	99.06	99.06	98.80	98.84
1502	NASDAQ	VTHR	Thu, Oct 6, 2016	98.78	99.14	98.78	99.14
1501	NASDAQ	VTHR	Wed, Oct 5, 2016	99.21	99.30	99.18	99.25
1500	NASDAQ	VTHR	Tue, Oct 4, 2016	99.25	99.25	98.38	98.65
1499	NASDAQ	VTHR	Mon, Oct 3, 2016	99.12	99.20	98.86	99.18
1498	NASDAQ	VTHR	Fri, Sep 30, 2016	99.03	99.61	98.84	99.41
1497	NASDAQ	VTHR	Thu, Sep 29, 2016	99.52	99.58	99.34	99.38
1496	NASDAQ	VTHR	Wed, Sep 28, 2016	99.22	99.49	99.08	99.38
1495	NASDAQ	VTHR	Tue, Sep 27, 2016	98.72	99.09	98.61	99.09
1494	NASDAQ	VTHR	Mon, Sep 26, 2016	99.00	99.00	98.61	98.61
1493	NASDAQ	VTHR	Fri, Sep 23, 2016	99.85	99.85	99.35	99.36
1492	NASDAQ	VTHR	Thu, Sep 22, 2016	99.79	99.92	99.66	99.85
1491	NASDAQ	VTHR	Wed, Sep 21, 2016	98.35	98.69	97.96	98.69
1490	NASDAQ	VTHR	Tue, Sep 20, 2016	98.34	98.34	98.08	98.24
1489	NASDAQ	VTHR	Mon, Sep 19, 2016	98.68	99.17	98.63	98.66
1488	NASDAQ	VTHR	Fri, Sep 16, 2016	98.67	98.67	98.10	98.11
1487	NASDAQ	VTHR	Thu, Sep 15, 2016	97.50	98.78	97.50	98.78
1486	NASDAQ	VTHR	Wed, Sep 14, 2016	98.19	98.19	97.70	97.70
1485	NASDAQ	VTHR	Tue, Sep 13, 2016	98.48	98.48	97.69	97.86
1484	NASDAQ	VTHR	Mon, Sep 12, 2016	98.14	99.38	98.14	99.34
1483	NASDAQ	VTHR	Fri, Sep 9, 2016	99.34	99.34	98.34	98.40
1482	NASDAQ	VTHR	Thu, Sep 8, 2016	100.46	100.49	100.32	100.32
1481	NASDAQ	VTHR	Wed, Sep 7, 2016	100.48	100.63	100.45	100.63
1480	NASDAQ	VTHR	Tue, Sep 6, 2016	100.32	100.44	100.32	100.44
1479	NASDAQ	VTHR	Fri, Sep 2, 2016	99.87	100.44	99.87	100.14
1478	NASDAQ	VTHR	Thu, Sep 1, 2016	99.63	99.75	99.39	99.75
1477	NASDAQ	VTHR	Wed, Aug 31, 2016	99.77	99.78	99.37	99.75
1476	NASDAQ	VTHR	Tue, Aug 30, 2016	100.33	100.33	99.91	99.99
1475	NASDAQ	VTHR	Mon, Aug 29, 2016	100.12	100.30	100.07	100.29
1474	NASDAQ	VTHR	Fri, Aug 26, 2016	99.92	100.57	99.44	99.52
1473	NASDAQ	VTHR	Thu, Aug 25, 2016	99.92	100.15	99.75	99.75
1472	NASDAQ	VTHR	Wed, Aug 24, 2016	100.70	100.70	99.88	99.88
1471	NASDAQ	VTHR	Tue, Aug 23, 2016	100.67	100.90	100.45	100.46
1470	NASDAQ	VTHR	Mon, Aug 22, 2016	100.00	100.42	99.90	100.28
1469	NASDAQ	VTHR	Fri, Aug 19, 2016	100.29	100.43	99.97	100.26
1468	NASDAQ	VTHR	Thu, Aug 18, 2016	99.97	100.39	99.97	100.28
1467	NASDAQ	VTHR	Wed, Aug 17, 2016	99.86	100.10	99.55	99.90
1466	NASDAQ	VTHR	Tue, Aug 16, 2016	100.51	100.51	100.05	100.09
1465	NASDAQ	VTHR	Mon, Aug 15, 2016	100.65	100.79	100.50	100.50
1464	NASDAQ	VTHR	Fri, Aug 12, 2016	100.14	100.29	100.02	100.16
1463	NASDAQ	VTHR	Thu, Aug 11, 2016	100.16	100.38	100.14	100.28
1462	NASDAQ	VTHR	Wed, Aug 10, 2016	99.98	100.06	99.63	99.64
1461	NASDAQ	VTHR	Tue, Aug 9, 2016	99.91	100.35	99.87	99.96
1460	NASDAQ	VTHR	Mon, Aug 8, 2016	100.02	100.21	99.94	100.00
1459	NASDAQ	VTHR	Fri, Aug 5, 2016	99.49	100.00	99.49	99.93
1458	NASDAQ	VTHR	Thu, Aug 4, 2016	99.18	99.31	99.09	99.09
1457	NASDAQ	VTHR	Wed, Aug 3, 2016	98.52	99.05	98.46	99.05
1456	NASDAQ	VTHR	Tue, Aug 2, 2016	99.16	99.36	98.51	98.77
1455	NASDAQ	VTHR	Mon, Aug 1, 2016	99.74	99.74	99.26	99.50
1454	NASDAQ	VTHR	Fri, Jul 29, 2016	99.47	99.66	99.26	99.64
1453	NASDAQ	VTHR	Thu, Jul 28, 2016	99.41	99.48	99.00	99.48
1452	NASDAQ	VTHR	Wed, Jul 27, 2016	99.80	99.80	99.02	99.28
1451	NASDAQ	VTHR	Tue, Jul 26, 2016	99.48	99.48	99.00	99.33
1450	NASDAQ	VTHR	Mon, Jul 25, 2016	99.45	99.45	98.94	99.19
1449	NASDAQ	VTHR	Fri, Jul 22, 2016	99.28	99.50	99.20	99.42
1448	NASDAQ	VTHR	Thu, Jul 21, 2016	99.32	99.32	99.00	99.15
1447	NASDAQ	VTHR	Wed, Jul 20, 2016	99.22	99.53	98.98	99.35
1446	NASDAQ	VTHR	Tue, Jul 19, 2016	98.95	98.99	98.84	98.84
1445	NASDAQ	VTHR	Mon, Jul 18, 2016	98.95	99.14	98.94	99.11
1444	NASDAQ	VTHR	Fri, Jul 15, 2016	99.12	99.12	98.73	98.73
1443	NASDAQ	VTHR	Thu, Jul 14, 2016	99.02	99.02	98.74	98.87
1442	NASDAQ	VTHR	Wed, Jul 13, 2016	98.49	98.69	98.24	98.48
1441	NASDAQ	VTHR	Tue, Jul 12, 2016	98.53	98.65	98.28	98.54
1440	NASDAQ	VTHR	Mon, Jul 11, 2016	97.56	98.04	97.56	97.88
1439	NASDAQ	VTHR	Fri, Jul 8, 2016	96.52	97.36	96.52	97.35
1438	NASDAQ	VTHR	Thu, Jul 7, 2016	96.01	96.26	95.44	95.77
1437	NASDAQ	VTHR	Wed, Jul 6, 2016	94.75	95.76	94.75	95.70
1436	NASDAQ	VTHR	Tue, Jul 5, 2016	95.93	95.93	94.90	95.00
1435	NASDAQ	VTHR	Fri, Jul 1, 2016	95.69	96.30	95.69	95.96
1434	NASDAQ	VTHR	Thu, Jun 30, 2016	94.79	95.47	94.57	95.40
1433	NASDAQ	VTHR	Wed, Jun 29, 2016	93.61	94.54	93.61	94.50
1432	NASDAQ	VTHR	Tue, Jun 28, 2016	92.22	92.76	92.11	92.74
1431	NASDAQ	VTHR	Mon, Jun 27, 2016	92.64	92.64	90.70	91.17
1430	NASDAQ	VTHR	Fri, Jun 24, 2016	93.48	94.39	92.62	92.99
1429	NASDAQ	VTHR	Thu, Jun 23, 2016	96.00	96.18	95.91	96.18
1428	NASDAQ	VTHR	Wed, Jun 22, 2016	95.47	95.49	95.27	95.27
1427	NASDAQ	VTHR	Tue, Jun 21, 2016	95.31	95.42	95.31	95.38
1426	NASDAQ	VTHR	Mon, Jun 20, 2016	95.53	96.17	95.53	95.55
1425	NASDAQ	VTHR	Fri, Jun 17, 2016	95.38	95.38	94.73	94.90
1424	NASDAQ	VTHR	Thu, Jun 16, 2016	94.31	95.22	94.00	95.22
1423	NASDAQ	VTHR	Wed, Jun 15, 2016	95.49	95.49	95.00	95.00
1422	NASDAQ	VTHR	Tue, Jun 14, 2016	95.00	95.03	94.70	95.03
1421	NASDAQ	VTHR	Mon, Jun 13, 2016	96.13	96.14	95.26	95.26
1420	NASDAQ	VTHR	Fri, Jun 10, 2016	96.38	96.40	95.86	96.04
1419	NASDAQ	VTHR	Thu, Jun 9, 2016	96.78	97.07	96.78	96.97
1418	NASDAQ	VTHR	Wed, Jun 8, 2016	97.10	97.25	97.02	97.24
1417	NASDAQ	VTHR	Tue, Jun 7, 2016	97.05	97.15	97.03	97.03
1416	NASDAQ	VTHR	Mon, Jun 6, 2016	96.41	96.85	96.41	96.82
1415	NASDAQ	VTHR	Fri, Jun 3, 2016	96.21	96.31	95.67	96.23
1414	NASDAQ	VTHR	Thu, Jun 2, 2016	96.01	96.06	95.88	96.06
1413	NASDAQ	VTHR	Wed, Jun 1, 2016	95.68	96.16	95.68	96.16
1412	NASDAQ	VTHR	Tue, May 31, 2016	96.20	96.20	95.70	95.95
1411	NASDAQ	VTHR	Fri, May 27, 2016	95.78	95.88	95.78	95.88
1410	NASDAQ	VTHR	Thu, May 26, 2016	95.71	95.71	95.43	95.52
1409	NASDAQ	VTHR	Wed, May 25, 2016	95.39	95.71	95.39	95.71
1408	NASDAQ	VTHR	Tue, May 24, 2016	94.17	95.08	94.16	95.01
1407	NASDAQ	VTHR	Mon, May 23, 2016	93.82	93.92	93.60	93.65
1406	NASDAQ	VTHR	Fri, May 20, 2016	93.87	93.87	93.69	93.78
1405	NASDAQ	VTHR	Thu, May 19, 2016	93.08	93.08	92.56	93.01
1404	NASDAQ	VTHR	Wed, May 18, 2016	93.03	93.86	93.03	93.38
1403	NASDAQ	VTHR	Tue, May 17, 2016	93.99	93.99	93.23	93.39
1402	NASDAQ	VTHR	Mon, May 16, 2016	93.32	94.48	93.32	94.41
1401	NASDAQ	VTHR	Fri, May 13, 2016	93.86	93.86	93.28	93.32
1400	NASDAQ	VTHR	Thu, May 12, 2016	94.47	94.47	93.72	93.72
1399	NASDAQ	VTHR	Wed, May 11, 2016	94.69	94.83	94.16	94.18
1398	NASDAQ	VTHR	Tue, May 10, 2016	94.64	94.85	94.64	94.85
1397	NASDAQ	VTHR	Mon, May 9, 2016	93.79	94.00	93.75	93.99
1396	NASDAQ	VTHR	Fri, May 6, 2016	93.17	93.75	93.17	93.75
1395	NASDAQ	VTHR	Thu, May 5, 2016	93.66	93.70	93.64	93.66
1394	NASDAQ	VTHR	Wed, May 4, 2016	93.68	93.92	93.48	93.50
1393	NASDAQ	VTHR	Tue, May 3, 2016	93.98	94.27	93.98	94.15
1392	NASDAQ	VTHR	Mon, May 2, 2016	94.68	95.05	94.36	95.05
1391	NASDAQ	VTHR	Fri, Apr 29, 2016	94.60	94.60	93.87	94.32
1390	NASDAQ	VTHR	Thu, Apr 28, 2016	95.48	95.76	95.48	95.57
1389	NASDAQ	VTHR	Wed, Apr 27, 2016	95.52	95.80	95.18	95.80
1388	NASDAQ	VTHR	Tue, Apr 26, 2016	95.54	95.56	95.35	95.50
1387	NASDAQ	VTHR	Mon, Apr 25, 2016	95.18	95.18	94.94	94.94
1386	NASDAQ	VTHR	Fri, Apr 22, 2016	95.13	95.39	95.13	95.14
1385	NASDAQ	VTHR	Thu, Apr 21, 2016	96.02	96.02	95.26	95.26
1384	NASDAQ	VTHR	Wed, Apr 20, 2016	95.61	96.19	95.53	95.88
1383	NASDAQ	VTHR	Tue, Apr 19, 2016	95.80	95.96	95.45	95.74
1382	NASDAQ	VTHR	Mon, Apr 18, 2016	94.47	95.35	94.47	95.35
1381	NASDAQ	VTHR	Fri, Apr 15, 2016	94.80	94.93	94.80	94.85
1380	NASDAQ	VTHR	Thu, Apr 14, 2016	94.99	95.08	94.78	94.97
1379	NASDAQ	VTHR	Wed, Apr 13, 2016	94.27	94.76	94.27	94.74
1378	NASDAQ	VTHR	Tue, Apr 12, 2016	93.02	93.94	92.89	93.86
1377	NASDAQ	VTHR	Mon, Apr 11, 2016	93.55	93.85	93.00	93.15
1376	NASDAQ	VTHR	Fri, Apr 8, 2016	93.73	93.73	93.05	93.16
1375	NASDAQ	VTHR	Thu, Apr 7, 2016	93.70	93.72	92.65	93.07
1374	NASDAQ	VTHR	Wed, Apr 6, 2016	93.41	94.10	93.04	94.10
1373	NASDAQ	VTHR	Tue, Apr 5, 2016	93.99	93.99	93.99	93.19
1372	NASDAQ	VTHR	Mon, Apr 4, 2016	94.50	94.52	93.99	93.99
1371	NASDAQ	VTHR	Fri, Apr 1, 2016	93.59	94.53	93.17	94.50
1370	NASDAQ	VTHR	Thu, Mar 31, 2016	94.01	94.29	93.83	94.02
1369	NASDAQ	VTHR	Wed, Mar 30, 2016	94.00	94.39	93.83	94.02
1368	NASDAQ	VTHR	Tue, Mar 29, 2016	92.27	93.44	92.27	93.53
1367	NASDAQ	VTHR	Mon, Mar 28, 2016	92.82	92.82	92.40	92.47
1366	NASDAQ	VTHR	Thu, Mar 24, 2016	92.55	92.55	92.55	92.50
1365	NASDAQ	VTHR	Wed, Mar 23, 2016	92.98	92.98	92.53	92.55
1364	NASDAQ	VTHR	Tue, Mar 22, 2016	92.80	93.54	92.80	93.26
1363	NASDAQ	VTHR	Mon, Mar 21, 2016	93.10	93.19	93.09	93.16
1362	NASDAQ	VTHR	Fri, Mar 18, 2016	93.56	93.76	93.50	93.67
1361	NASDAQ	VTHR	Thu, Mar 17, 2016	92.73	93.40	92.73	93.38
1360	NASDAQ	VTHR	Wed, Mar 16, 2016	91.74	92.57	91.74	92.54
1359	NASDAQ	VTHR	Tue, Mar 15, 2016	92.27	92.27	92.27	91.92
1358	NASDAQ	VTHR	Mon, Mar 14, 2016	91.89	92.10	91.89	92.10
1357	NASDAQ	VTHR	Fri, Mar 11, 2016	90.65	90.65	90.65	92.27
1356	NASDAQ	VTHR	Thu, Mar 10, 2016	90.96	90.96	90.00	90.00
1355	NASDAQ	VTHR	Wed, Mar 9, 2016	90.60	90.89	90.55	90.51
1354	NASDAQ	VTHR	Tue, Mar 8, 2016	91.00	91.07	90.51	91.31
1353	NASDAQ	VTHR	Mon, Mar 7, 2016	90.82	91.74	90.82	91.31
1352	NASDAQ	VTHR	Fri, Mar 4, 2016	90.71	90.71	90.71	91.47
1351	NASDAQ	VTHR	Thu, Mar 3, 2016	90.63	90.63	90.63	90.71
1350	NASDAQ	VTHR	Wed, Mar 2, 2016	90.00	90.63	89.81	90.13
1349	NASDAQ	VTHR	Tue, Mar 1, 2016	88.81	90.00	88.53	89.10
1348	NASDAQ	VTHR	Mon, Feb 29, 2016	88.85	89.10	88.64	88.66
1347	NASDAQ	VTHR	Fri, Feb 26, 2016	89.34	89.34	88.80	88.66
1346	NASDAQ	VTHR	Thu, Feb 25, 2016	88.03	88.66	87.82	88.66
1345	NASDAQ	VTHR	Wed, Feb 24, 2016	86.05	87.73	86.01	87.73
1344	NASDAQ	VTHR	Tue, Feb 23, 2016	87.82	87.82	87.28	87.34
1343	NASDAQ	VTHR	Mon, Feb 22, 2016	88.00	88.32	88.00	88.31
1342	NASDAQ	VTHR	Fri, Feb 19, 2016	86.60	87.02	86.60	86.90
1341	NASDAQ	VTHR	Thu, Feb 18, 2016	87.70	87.70	86.99	86.99
1340	NASDAQ	VTHR	Wed, Feb 17, 2016	86.69	87.57	86.69	87.49
1339	NASDAQ	VTHR	Tue, Feb 16, 2016	85.60	85.99	85.14	85.89
1338	NASDAQ	VTHR	Fri, Feb 12, 2016	83.81	84.49	83.41	84.49
1337	NASDAQ	VTHR	Thu, Feb 11, 2016	82.70	83.14	82.00	82.88
1336	NASDAQ	VTHR	Wed, Feb 10, 2016	84.96	84.96	83.70	83.94
1335	NASDAQ	VTHR	Tue, Feb 9, 2016	83.25	84.43	83.09	83.99
1334	NASDAQ	VTHR	Mon, Feb 8, 2016	84.49	84.49	83.01	83.56
1333	NASDAQ	VTHR	Fri, Feb 5, 2016	85.83	85.83	85.10	85.18
1332	NASDAQ	VTHR	Thu, Feb 4, 2016	86.68	87.45	86.58	86.67
1331	NASDAQ	VTHR	Wed, Feb 3, 2016	86.61	86.84	85.45	86.79
1330	NASDAQ	VTHR	Tue, Feb 2, 2016	86.79	86.79	86.20	86.51
1329	NASDAQ	VTHR	Mon, Feb 1, 2016	87.59	88.30	87.25	87.94
1328	NASDAQ	VTHR	Fri, Jan 29, 2016	86.50	87.91	86.50	87.70
1327	NASDAQ	VTHR	Thu, Jan 28, 2016	85.94	85.98	85.31	85.96
1326	NASDAQ	VTHR	Wed, Jan 27, 2016	86.67	86.67	85.21	85.21
1325	NASDAQ	VTHR	Tue, Jan 26, 2016	85.51	86.65	85.51	86.42
1324	NASDAQ	VTHR	Mon, Jan 25, 2016	86.51	86.51	85.16	85.24
1323	NASDAQ	VTHR	Fri, Jan 22, 2016	86.22	86.65	86.20	86.65
1322	NASDAQ	VTHR	Thu, Jan 21, 2016	84.51	85.82	84.31	85.12
1321	NASDAQ	VTHR	Wed, Jan 20, 2016	84.03	85.31	82.29	84.63
1320	NASDAQ	VTHR	Tue, Jan 19, 2016	86.04	86.19	84.74	85.25
1319	NASDAQ	VTHR	Fri, Jan 15, 2016	85.70	85.70	84.60	85.40
1318	NASDAQ	VTHR	Thu, Jan 14, 2016	86.37	87.63	86.15	87.49
1317	NASDAQ	VTHR	Wed, Jan 13, 2016	88.52	88.52	85.79	85.84
1316	NASDAQ	VTHR	Tue, Jan 12, 2016	88.50	88.50	87.10	88.17
1315	NASDAQ	VTHR	Mon, Jan 11, 2016	88.23	88.24	86.56	87.45
1314	NASDAQ	VTHR	Fri, Jan 8, 2016	89.27	89.29	87.55	87.55
1313	NASDAQ	VTHR	Thu, Jan 7, 2016	89.47	89.84	88.59	88.61
1312	NASDAQ	VTHR	Wed, Jan 6, 2016	91.07	91.60	90.56	90.79
1311	NASDAQ	VTHR	Tue, Jan 5, 2016	92.03	92.14	91.90	92.04
1310	NASDAQ	VTHR	Mon, Jan 4, 2016	92.11	92.11	91.01	91.86
1309	NASDAQ	VTHR	Thu, Dec 31, 2015	93.71	94.16	93.53	93.59
1308	NASDAQ	VTHR	Wed, Dec 30, 2015	94.90	94.90	94.26	94.26
1307	NASDAQ	VTHR	Tue, Dec 29, 2015	94.78	94.95	94.60	94.95
1306	NASDAQ	VTHR	Mon, Dec 28, 2015	94.29	94.29	93.49	93.82
1305	NASDAQ	VTHR	Thu, Dec 24, 2015	94.16	94.31	94.12	94.29
1304	NASDAQ	VTHR	Wed, Dec 23, 2015	93.72	94.29	93.72	94.17
1303	NASDAQ	VTHR	Tue, Dec 22, 2015	92.92	93.24	92.22	93.05
1302	NASDAQ	VTHR	Mon, Dec 21, 2015	92.27	92.27	91.66	91.85
1301	NASDAQ	VTHR	Fri, Dec 18, 2015	92.97	92.97	92.38	92.38
1300	NASDAQ	VTHR	Thu, Dec 17, 2015	95.32	95.32	94.11	94.20
1299	NASDAQ	VTHR	Wed, Dec 16, 2015	94.27	95.19	93.92	95.19
1298	NASDAQ	VTHR	Tue, Dec 15, 2015	93.33	94.06	93.33	93.70
1297	NASDAQ	VTHR	Mon, Dec 14, 2015	92.38	92.72	91.78	92.71
1296	NASDAQ	VTHR	Fri, Dec 11, 2015	93.35	93.35	92.39	92.39
1295	NASDAQ	VTHR	Thu, Dec 10, 2015	93.97	94.90	93.97	94.14
1294	NASDAQ	VTHR	Wed, Dec 9, 2015	94.58	95.21	93.68	93.96
1293	NASDAQ	VTHR	Tue, Dec 8, 2015	94.51	95.13	94.34	94.80
1292	NASDAQ	VTHR	Mon, Dec 7, 2015	95.90	95.90	95.08	95.22
1291	NASDAQ	VTHR	Fri, Dec 4, 2015	94.52	96.10	94.52	96.10
1290	NASDAQ	VTHR	Thu, Dec 3, 2015	96.04	96.04	94.23	94.33
1289	NASDAQ	VTHR	Wed, Dec 2, 2015	96.79	96.86	95.80	95.80
1288	NASDAQ	VTHR	Tue, Dec 1, 2015	96.65	96.71	96.20	96.71
1287	NASDAQ	VTHR	Mon, Nov 30, 2015	96.44	96.44	95.85	96.01
1286	NASDAQ	VTHR	Fri, Nov 27, 2015	96.13	96.38	95.96	96.38
1285	NASDAQ	VTHR	Wed, Nov 25, 2015	96.09	96.44	96.08	96.17
1284	NASDAQ	VTHR	Tue, Nov 24, 2015	95.38	96.18	95.38	96.18
1283	NASDAQ	VTHR	Mon, Nov 23, 2015	95.95	96.27	95.67	95.90
1282	NASDAQ	VTHR	Fri, Nov 20, 2015	95.99	96.17	95.84	95.87
1281	NASDAQ	VTHR	Thu, Nov 19, 2015	95.62	95.65	95.49	95.54
1280	NASDAQ	VTHR	Wed, Nov 18, 2015	94.65	95.12	94.64	95.12
1279	NASDAQ	VTHR	Tue, Nov 17, 2015	94.61	94.85	94.33	94.85
1278	NASDAQ	VTHR	Mon, Nov 16, 2015	92.87	94.22	92.87	94.22
1277	NASDAQ	VTHR	Fri, Nov 13, 2015	93.87	93.87	93.00	93.09
1276	NASDAQ	VTHR	Thu, Nov 12, 2015	94.66	94.88	94.57	94.57
1275	NASDAQ	VTHR	Wed, Nov 11, 2015	95.99	95.99	95.45	95.46
1274	NASDAQ	VTHR	Mon, Nov 9, 2015	96.31	96.31	95.29	95.43
1273	NASDAQ	VTHR	Fri, Nov 6, 2015	96.49	96.49	96.00	96.36
1272	NASDAQ	VTHR	Thu, Nov 5, 2015	96.71	96.72	96.34	96.34
1271	NASDAQ	VTHR	Wed, Nov 4, 2015	96.61	96.72	96.41	96.53
1270	NASDAQ	VTHR	Tue, Nov 3, 2015	96.46	97.15	96.36	96.88
1269	NASDAQ	VTHR	Mon, Nov 2, 2015	95.28	96.06	95.28	95.99
1268	NASDAQ	VTHR	Fri, Oct 30, 2015	95.73	95.73	95.59	95.69
1267	NASDAQ	VTHR	Thu, Oct 29, 2015	95.54	95.83	95.54	95.73
1266	NASDAQ	VTHR	Wed, Oct 28, 2015	94.83	95.68	94.72	95.68
1265	NASDAQ	VTHR	Tue, Oct 27, 2015	94.82	94.82	94.48	94.70
1264	NASDAQ	VTHR	Mon, Oct 26, 2015	95.13	95.14	94.90	94.93
1263	NASDAQ	VTHR	Fri, Oct 23, 2015	94.96	95.38	94.63	95.14
1262	NASDAQ	VTHR	Thu, Oct 22, 2015	93.84	94.29	93.84	94.09
1261	NASDAQ	VTHR	Wed, Oct 21, 2015	93.42	93.55	93.11	93.28
1260	NASDAQ	VTHR	Tue, Oct 20, 2015	93.34	93.91	93.34	93.43
1259	NASDAQ	VTHR	Mon, Oct 19, 2015	93.15	93.56	93.15	93.31
1258	NASDAQ	VTHR	Fri, Oct 16, 2015	93.36	93.36	93.23	93.23
1257	NASDAQ	VTHR	Thu, Oct 15, 2015	92.10	93.18	92.08	93.18
1256	NASDAQ	VTHR	Wed, Oct 14, 2015	91.79	91.79	91.79	91.79
1255	NASDAQ	VTHR	Tue, Oct 13, 2015	93.00	93.20	92.48	92.48
1254	NASDAQ	VTHR	Mon, Oct 12, 2015	93.02	93.02	92.81	92.94
1253	NASDAQ	VTHR	Fri, Oct 9, 2015	92.92	93.00	92.83	92.83
1252	NASDAQ	VTHR	Thu, Oct 8, 2015	92.10	92.10	91.89	91.89
1251	NASDAQ	VTHR	Wed, Oct 7, 2015	91.97	91.97	91.32	91.79
1250	NASDAQ	VTHR	Tue, Oct 6, 2015	91.49	91.49	91.02	91.18
1249	NASDAQ	VTHR	Mon, Oct 5, 2015	90.85	91.57	90.85	91.57
1248	NASDAQ	VTHR	Fri, Oct 2, 2015	87.49	89.71	87.29	89.71
1247	NASDAQ	VTHR	Thu, Oct 1, 2015	88.23	88.51	87.77	88.51
1246	NASDAQ	VTHR	Wed, Sep 30, 2015	88.20	88.26	87.57	88.19
1245	NASDAQ	VTHR	Tue, Sep 29, 2015	86.68	87.33	86.55	86.55
1244	NASDAQ	VTHR	Mon, Sep 28, 2015	88.76	88.76	86.98	86.98
1243	NASDAQ	VTHR	Fri, Sep 25, 2015	90.34	90.34	89.03	89.23
1242	NASDAQ	VTHR	Thu, Sep 24, 2015	88.89	89.12	88.23	89.12
1241	NASDAQ	VTHR	Wed, Sep 23, 2015	90.00	90.05	89.44	89.65
1240	NASDAQ	VTHR	Tue, Sep 22, 2015	89.81	89.86	89.27	89.86
1239	NASDAQ	VTHR	Mon, Sep 21, 2015	91.00	91.39	90.85	90.91
1238	NASDAQ	VTHR	Fri, Sep 18, 2015	91.61	91.89	91.03	91.03
1237	NASDAQ	VTHR	Thu, Sep 17, 2015	92.69	93.64	92.58	93.03
1236	NASDAQ	VTHR	Wed, Sep 16, 2015	92.05	92.60	91.97	92.60
1235	NASDAQ	VTHR	Tue, Sep 15, 2015	91.18	91.99	90.88	91.99
1234	NASDAQ	VTHR	Mon, Sep 14, 2015	90.78	90.78	90.71	90.71
1233	NASDAQ	VTHR	Fri, Sep 11, 2015	90.59	90.84	90.14	90.84
1232	NASDAQ	VTHR	Thu, Sep 10, 2015	90.24	91.22	90.24	90.51
1231	NASDAQ	VTHR	Wed, Sep 9, 2015	92.28	92.28	90.88	90.94
1230	NASDAQ	VTHR	Tue, Sep 8, 2015	90.89	91.37	90.68	91.37
1229	NASDAQ	VTHR	Fri, Sep 4, 2015	89.72	89.72	89.00	89.31
1228	NASDAQ	VTHR	Thu, Sep 3, 2015	91.28	91.30	90.47	90.47
1227	NASDAQ	VTHR	Wed, Sep 2, 2015	90.15	90.15	89.10	89.98
1226	NASDAQ	VTHR	Tue, Sep 1, 2015	89.75	90.03	88.33	88.74
1225	NASDAQ	VTHR	Mon, Aug 31, 2015	91.87	92.14	91.43	91.48
1224	NASDAQ	VTHR	Fri, Aug 28, 2015	91.86	92.25	91.71	92.04
1223	NASDAQ	VTHR	Thu, Aug 27, 2015	91.20	92.07	90.74	91.68
1222	NASDAQ	VTHR	Wed, Aug 26, 2015	89.10	89.10	87.45	88.78
1221	NASDAQ	VTHR	Tue, Aug 25, 2015	90.95	90.97	87.17	87.18
1220	NASDAQ	VTHR	Mon, Aug 24, 2015	88.38	90.28	86.01	88.22
1219	NASDAQ	VTHR	Fri, Aug 21, 2015	93.10	93.34	91.56	91.85
1218	NASDAQ	VTHR	Thu, Aug 20, 2015	95.66	95.66	94.49	94.52
1217	NASDAQ	VTHR	Wed, Aug 19, 2015	96.43	96.43	95.85	96.37
1216	NASDAQ	VTHR	Tue, Aug 18, 2015	97.15	97.15	97.08	97.08
1215	NASDAQ	VTHR	Mon, Aug 17, 2015	96.57	97.08	96.25	97.08
1214	NASDAQ	VTHR	Fri, Aug 14, 2015	96.24	96.48	96.24	96.45
1213	NASDAQ	VTHR	Thu, Aug 13, 2015	96.57	96.67	96.57	96.60
1212	NASDAQ	VTHR	Wed, Aug 12, 2015	95.81	96.44	95.00	96.44
1211	NASDAQ	VTHR	Tue, Aug 11, 2015	96.46	96.49	96.29	96.32
1210	NASDAQ	VTHR	Mon, Aug 10, 2015	96.91	97.32	96.91	97.27
1209	NASDAQ	VTHR	Fri, Aug 7, 2015	95.76	96.09	95.68	96.04
1208	NASDAQ	VTHR	Thu, Aug 6, 2015	96.75	96.86	96.01	96.39
1207	NASDAQ	VTHR	Wed, Aug 5, 2015	97.49	97.75	97.16	97.16
1206	NASDAQ	VTHR	Tue, Aug 4, 2015	97.10	97.10	96.99	96.99
1205	NASDAQ	VTHR	Mon, Aug 3, 2015	97.29	97.29	96.68	96.68
1204	NASDAQ	VTHR	Fri, Jul 31, 2015	97.58	97.83	97.42	97.42
1203	NASDAQ	VTHR	Thu, Jul 30, 2015	97.29	97.52	96.86	97.52
1202	NASDAQ	VTHR	Wed, Jul 29, 2015	96.89	97.50	96.75	97.47
1201	NASDAQ	VTHR	Tue, Jul 28, 2015	95.53	96.80	95.53	96.73
1200	NASDAQ	VTHR	Mon, Jul 27, 2015	96.06	96.06	95.39	95.49
1199	NASDAQ	VTHR	Fri, Jul 24, 2015	97.48	97.48	96.08	96.21
1198	NASDAQ	VTHR	Thu, Jul 23, 2015	98.05	98.05	97.38	97.43
1197	NASDAQ	VTHR	Wed, Jul 22, 2015	97.42	97.96	97.42	97.78
1196	NASDAQ	VTHR	Tue, Jul 21, 2015	98.36	98.38	97.83	98.03
1195	NASDAQ	VTHR	Mon, Jul 20, 2015	98.61	98.61	98.33	98.34
1194	NASDAQ	VTHR	Fri, Jul 17, 2015	98.54	98.54	98.10	98.39
1193	NASDAQ	VTHR	Thu, Jul 16, 2015	98.27	98.32	98.27	98.27
1192	NASDAQ	VTHR	Wed, Jul 15, 2015	98.00	98.00	97.50	97.56
1191	NASDAQ	VTHR	Tue, Jul 14, 2015	97.48	97.96	97.48	97.81
1190	NASDAQ	VTHR	Mon, Jul 13, 2015	97.24	97.42	97.05	97.42
1189	NASDAQ	VTHR	Fri, Jul 10, 2015	96.52	96.52	95.95	96.40
1188	NASDAQ	VTHR	Thu, Jul 9, 2015	96.25	96.25	95.21	95.21
1187	NASDAQ	VTHR	Wed, Jul 8, 2015	95.92	95.92	94.85	94.85
1186	NASDAQ	VTHR	Tue, Jul 7, 2015	95.97	96.54	94.96	96.54
1185	NASDAQ	VTHR	Mon, Jul 6, 2015	95.68	96.15	95.47	95.92
1184	NASDAQ	VTHR	Thu, Jul 2, 2015	96.75	96.75	96.04	96.04
1183	NASDAQ	VTHR	Wed, Jul 1, 2015	96.75	96.75	96.00	96.23
1182	NASDAQ	VTHR	Tue, Jun 30, 2015	96.57	96.57	95.51	95.74
1181	NASDAQ	VTHR	Mon, Jun 29, 2015	96.44	96.96	95.41	95.41
1180	NASDAQ	VTHR	Fri, Jun 26, 2015	98.07	98.07	97.48	97.48
1179	NASDAQ	VTHR	Thu, Jun 25, 2015	98.32	98.32	97.55	97.60
1178	NASDAQ	VTHR	Wed, Jun 24, 2015	98.77	98.77	97.90	97.95
1177	NASDAQ	VTHR	Tue, Jun 23, 2015	98.83	98.83	98.49	98.63
1176	NASDAQ	VTHR	Mon, Jun 22, 2015	98.76	98.85	98.44	98.54
1175	NASDAQ	VTHR	Fri, Jun 19, 2015	98.74	98.85	98.53	98.74
1174	NASDAQ	VTHR	Thu, Jun 18, 2015	98.03	98.89	98.64	98.83
1173	NASDAQ	VTHR	Wed, Jun 17, 2015	98.07	98.06	97.68	97.93
1172	NASDAQ	VTHR	Tue, Jun 16, 2015	97.24	97.78	97.12	97.62
1171	NASDAQ	VTHR	Mon, Jun 15, 2015	97.13	97.13	96.71	97.02
1170	NASDAQ	VTHR	Fri, Jun 12, 2015	97.98	97.98	97.49	97.61
1169	NASDAQ	VTHR	Thu, Jun 11, 2015	98.33	98.40	98.17	98.20
1168	NASDAQ	VTHR	Wed, Jun 10, 2015	97.32	98.15	97.26	98.02
1167	NASDAQ	VTHR	Tue, Jun 9, 2015	96.96	97.13	96.52	96.73
1166	NASDAQ	VTHR	Mon, Jun 8, 2015	97.56	97.56	96.96	96.97
1165	NASDAQ	VTHR	Fri, Jun 5, 2015	97.56	97.60	97.00	97.56
1164	NASDAQ	VTHR	Thu, Jun 4, 2015	98.22	98.22	97.37	97.50
1163	NASDAQ	VTHR	Wed, Jun 3, 2015	98.46	98.66	98.18	98.35
1162	NASDAQ	VTHR	Tue, Jun 2, 2015	97.95	98.42	97.57	98.04
1161	NASDAQ	VTHR	Mon, Jun 1, 2015	98.45	98.45	97.69	98.09
1160	NASDAQ	VTHR	Fri, May 29, 2015	98.56	98.56	97.79	97.98
1159	NASDAQ	VTHR	Thu, May 28, 2015	98.52	98.55	98.14	98.45
1158	NASDAQ	VTHR	Wed, May 27, 2015	98.00	98.68	97.76	98.63
1157	NASDAQ	VTHR	Tue, May 26, 2015	98.66	98.66	97.53	97.70
1156	NASDAQ	VTHR	Fri, May 22, 2015	98.70	98.91	98.68	98.72
1155	NASDAQ	VTHR	Thu, May 21, 2015	98.70	99.08	98.66	98.91
1154	NASDAQ	VTHR	Wed, May 20, 2015	98.94	99.12	98.61	98.76
1153	NASDAQ	VTHR	Tue, May 19, 2015	98.77	99.02	98.60	98.72
1152	NASDAQ	VTHR	Mon, May 18, 2015	98.52	98.89	98.41	98.89
1151	NASDAQ	VTHR	Fri, May 15, 2015	98.69	98.69	98.20	98.39
1150	NASDAQ	VTHR	Thu, May 14, 2015	97.90	98.32	97.75	98.29
1149	NASDAQ	VTHR	Wed, May 13, 2015	97.81	97.81	97.36	97.42
1148	NASDAQ	VTHR	Tue, May 12, 2015	97.30	97.46	96.70	97.39
1147	NASDAQ	VTHR	Mon, May 11, 2015	98.16	98.16	97.70	97.70
1146	NASDAQ	VTHR	Fri, May 8, 2015	97.74	98.17	97.74	98.06
1145	NASDAQ	VTHR	Thu, May 7, 2015	96.05	96.93	96.05	96.91
1144	NASDAQ	VTHR	Wed, May 6, 2015	97.10	97.10	96.00	96.10
1143	NASDAQ	VTHR	Tue, May 5, 2015	98.01	98.01	96.75	96.77
1142	NASDAQ	VTHR	Mon, May 4, 2015	97.57	98.20	97.57	97.97
1141	NASDAQ	VTHR	Fri, May 1, 2015	97.22	97.47	96.98	97.45
1140	NASDAQ	VTHR	Thu, Apr 30, 2015	97.51	97.51	96.25	96.49
1139	NASDAQ	VTHR	Wed, Apr 29, 2015	97.72	97.89	97.33	97.65
1138	NASDAQ	VTHR	Tue, Apr 28, 2015	97.95	98.09	97.46	98.07
1137	NASDAQ	VTHR	Mon, Apr 27, 2015	98.77	98.77	97.82	97.82
1136	NASDAQ	VTHR	Fri, Apr 24, 2015	98.48	98.48	98.12	98.28
1135	NASDAQ	VTHR	Thu, Apr 23, 2015	97.79	98.40	97.77	98.36
1134	NASDAQ	VTHR	Wed, Apr 22, 2015	97.45	97.91	97.23	97.91
1133	NASDAQ	VTHR	Tue, Apr 21, 2015	97.75	97.75	97.36	97.37
1132	NASDAQ	VTHR	Mon, Apr 20, 2015	97.27	97.71	97.27	97.45
1131	NASDAQ	VTHR	Fri, Apr 17, 2015	97.84	97.84	96.41	96.68
1130	NASDAQ	VTHR	Thu, Apr 16, 2015	97.81	98.09	97.65	97.99
1129	NASDAQ	VTHR	Wed, Apr 15, 2015	97.83	98.18	97.75	97.96
1128	NASDAQ	VTHR	Tue, Apr 14, 2015	97.28	97.54	97.00	97.43
1127	NASDAQ	VTHR	Mon, Apr 13, 2015	97.75	97.91	97.27	97.32
1126	NASDAQ	VTHR	Fri, Apr 10, 2015	97.35	97.70	97.35	97.67
1125	NASDAQ	VTHR	Thu, Apr 9, 2015	96.83	96.91	96.59	96.90
1124	NASDAQ	VTHR	Wed, Apr 8, 2015	96.45	96.90	96.34	96.73
1123	NASDAQ	VTHR	Tue, Apr 7, 2015	96.94	97.03	96.65	96.65
1122	NASDAQ	VTHR	Mon, Apr 6, 2015	95.72	96.97	95.72	96.68
1121	NASDAQ	VTHR	Thu, Apr 2, 2015	95.79	96.24	95.70	96.23
1120	NASDAQ	VTHR	Wed, Apr 1, 2015	96.47	96.47	95.50	95.50
1119	NASDAQ	VTHR	Tue, Mar 31, 2015	96.64	96.64	96.19	96.24
1118	NASDAQ	VTHR	Mon, Mar 30, 2015	96.16	96.95	96.16	96.95
1117	NASDAQ	VTHR	Fri, Mar 27, 2015	95.50	95.70	95.44	95.70
1116	NASDAQ	VTHR	Thu, Mar 26, 2015	95.14	95.82	95.00	95.39
1115	NASDAQ	VTHR	Wed, Mar 25, 2015	97.40	97.40	95.74	95.74
1114	NASDAQ	VTHR	Tue, Mar 24, 2015	97.72	97.76	97.19	97.19
1113	NASDAQ	VTHR	Mon, Mar 23, 2015	97.97	98.07	97.73	97.73
1112	NASDAQ	VTHR	Fri, Mar 20, 2015	98.01	98.37	98.01	98.31
1111	NASDAQ	VTHR	Thu, Mar 19, 2015	97.63	97.46	97.13	97.30
1110	NASDAQ	VTHR	Wed, Mar 18, 2015	96.52	97.81	96.35	97.57
1109	NASDAQ	VTHR	Tue, Mar 17, 2015	96.56	96.61	96.52	96.61
1108	NASDAQ	VTHR	Mon, Mar 16, 2015	95.84	96.52	95.84	96.52
1107	NASDAQ	VTHR	Fri, Mar 13, 2015	96.12	96.12	95.00	95.38
1106	NASDAQ	VTHR	Thu, Mar 12, 2015	95.40	95.79	95.40	95.79
1105	NASDAQ	VTHR	Wed, Mar 11, 2015	95.13	95.13	94.81	94.98
1104	NASDAQ	VTHR	Tue, Mar 10, 2015	95.86	95.86	94.88	94.88
1103	NASDAQ	VTHR	Mon, Mar 9, 2015	96.30	96.57	96.24	96.49
1102	NASDAQ	VTHR	Fri, Mar 6, 2015	97.11	97.10	96.00	96.00
1101	NASDAQ	VTHR	Thu, Mar 5, 2015	97.32	97.51	97.29	97.36
1100	NASDAQ	VTHR	Wed, Mar 4, 2015	97.54	97.26	96.92	97.19
1099	NASDAQ	VTHR	Tue, Mar 3, 2015	98.04	97.88	97.32	97.59
1098	NASDAQ	VTHR	Mon, Mar 2, 2015	97.52	97.89	97.52	97.89
1097	NASDAQ	VTHR	Fri, Feb 27, 2015	97.75	97.77	97.42	97.42
1096	NASDAQ	VTHR	Thu, Feb 26, 2015	97.70	97.90	97.53	97.68
1095	NASDAQ	VTHR	Wed, Feb 25, 2015	97.72	98.07	97.72	97.89
1094	NASDAQ	VTHR	Tue, Feb 24, 2015	97.75	97.93	97.57	97.93
1093	NASDAQ	VTHR	Mon, Feb 23, 2015	97.59	97.67	97.33	97.67
1092	NASDAQ	VTHR	Fri, Feb 20, 2015	96.83	97.47	96.50	97.45
1091	NASDAQ	VTHR	Thu, Feb 19, 2015	97.04	97.14	96.78	97.03
1090	NASDAQ	VTHR	Wed, Feb 18, 2015	96.86	97.05	96.86	97.03
1089	NASDAQ	VTHR	Tue, Feb 17, 2015	97.01	97.12	96.61	97.00
1088	NASDAQ	VTHR	Fri, Feb 13, 2015	96.44	96.90	96.60	96.90
1087	NASDAQ	VTHR	Thu, Feb 12, 2015	96.07	96.30	96.08	96.30
1086	NASDAQ	VTHR	Wed, Feb 11, 2015	95.50	95.68	95.18	95.47
1085	NASDAQ	VTHR	Tue, Feb 10, 2015	94.95	95.59	94.66	95.59
1084	NASDAQ	VTHR	Mon, Feb 9, 2015	94.51	94.93	94.43	94.43
1083	NASDAQ	VTHR	Fri, Feb 6, 2015	95.51	95.73	94.88	94.88
1082	NASDAQ	VTHR	Thu, Feb 5, 2015	94.43	95.08	94.43	95.08
1081	NASDAQ	VTHR	Wed, Feb 4, 2015	94.36	94.75	94.19	94.19
1080	NASDAQ	VTHR	Tue, Feb 3, 2015	93.62	94.64	93.62	94.64
1079	NASDAQ	VTHR	Mon, Feb 2, 2015	92.51	92.56	91.88	92.22
1078	NASDAQ	VTHR	Fri, Jan 30, 2015	92.49	93.01	92.45	92.45
1077	NASDAQ	VTHR	Thu, Jan 29, 2015	92.84	92.86	92.04	92.86
1076	NASDAQ	VTHR	Wed, Jan 28, 2015	94.57	94.57	92.61	92.61
1075	NASDAQ	VTHR	Tue, Jan 27, 2015	94.03	94.19	93.59	93.84
1074	NASDAQ	VTHR	Mon, Jan 26, 2015	94.51	94.80	94.29	94.72
1073	NASDAQ	VTHR	Fri, Jan 23, 2015	94.97	94.85	94.68	94.68
1072	NASDAQ	VTHR	Thu, Jan 22, 2015	94.08	94.97	94.15	94.97
1071	NASDAQ	VTHR	Wed, Jan 21, 2015	93.02	93.77	92.76	93.55
1070	NASDAQ	VTHR	Tue, Jan 20, 2015	93.39	93.39	92.50	93.10
1069	NASDAQ	VTHR	Fri, Jan 16, 2015	91.72	92.61	91.64	92.54
1068	NASDAQ	VTHR	Thu, Jan 15, 2015	93.09	93.17	91.93	92.00
1067	NASDAQ	VTHR	Wed, Jan 14, 2015	92.28	92.74	92.02	92.74
1066	NASDAQ	VTHR	Tue, Jan 13, 2015	94.14	94.66	92.79	93.08
1065	NASDAQ	VTHR	Mon, Jan 12, 2015	94.31	94.31	93.27	93.43
1064	NASDAQ	VTHR	Fri, Jan 9, 2015	95.00	94.53	94.10	94.28
1063	NASDAQ	VTHR	Thu, Jan 8, 2015	93.81	94.85	93.81	94.71
1062	NASDAQ	VTHR	Wed, Jan 7, 2015	93.04	93.23	92.80	93.19
1061	NASDAQ	VTHR	Tue, Jan 6, 2015	93.28	93.28	91.78	92.13
1060	NASDAQ	VTHR	Mon, Jan 5, 2015	94.32	94.56	92.99	93.05
1059	NASDAQ	VTHR	Fri, Jan 2, 2015	95.27	95.27	94.17	94.19
1058	NASDAQ	VTHR	Wed, Dec 31, 2014	96.06	95.85	95.14	95.14
1057	NASDAQ	VTHR	Tue, Dec 30, 2014	95.76	95.89	95.70	95.77
1056	NASDAQ	VTHR	Mon, Dec 29, 2014	96.09	96.26	96.02	96.20
1055	NASDAQ	VTHR	Fri, Dec 26, 2014	95.91	96.18	95.89	96.14
1054	NASDAQ	VTHR	Wed, Dec 24, 2014	95.87	95.91	95.70	95.84
1053	NASDAQ	VTHR	Tue, Dec 23, 2014	95.88	95.88	95.65	95.71
1052	NASDAQ	VTHR	Mon, Dec 22, 2014	95.34	95.37	95.05	95.37
1051	NASDAQ	VTHR	Fri, Dec 19, 2014	95.10	95.35	94.69	95.23
1050	NASDAQ	VTHR	Thu, Dec 18, 2014	93.98	94.33	93.64	94.33
1049	NASDAQ	VTHR	Wed, Dec 17, 2014	91.75	92.85	91.51	92.85
1048	NASDAQ	VTHR	Tue, Dec 16, 2014	91.53	92.78	91.59	92.35
1047	NASDAQ	VTHR	Mon, Dec 15, 2014	93.12	93.12	91.50	92.00
1046	NASDAQ	VTHR	Fri, Dec 12, 2014	93.29	93.55	92.50	92.50
1045	NASDAQ	VTHR	Thu, Dec 11, 2014	93.87	94.48	93.87	94.28
1044	NASDAQ	VTHR	Wed, Dec 10, 2014	95.04	95.04	93.60	93.60
1043	NASDAQ	VTHR	Tue, Dec 9, 2014	94.25	94.83	94.06	94.83
1042	NASDAQ	VTHR	Mon, Dec 8, 2014	95.67	95.69	94.72	94.91
1041	NASDAQ	VTHR	Fri, Dec 5, 2014	95.69	95.82	95.67	95.70
1040	NASDAQ	VTHR	Thu, Dec 4, 2014	95.59	95.59	95.40	95.40
1039	NASDAQ	VTHR	Wed, Dec 3, 2014	95.30	95.71	95.17	95.65
1038	NASDAQ	VTHR	Tue, Dec 2, 2014	94.61	95.08	94.61	95.08
1037	NASDAQ	VTHR	Mon, Dec 1, 2014	98.99	98.99	94.45	94.60
1036	NASDAQ	VTHR	Fri, Nov 28, 2014	95.80	95.74	95.31	95.31
1035	NASDAQ	VTHR	Wed, Nov 26, 2014	95.45	95.60	95.51	95.59
1034	NASDAQ	VTHR	Tue, Nov 25, 2014	95.66	95.50	95.31	95.45
1033	NASDAQ	VTHR	Mon, Nov 24, 2014	95.34	95.50	95.30	95.49
1032	NASDAQ	VTHR	Fri, Nov 21, 2014	95.42	95.42	94.95	95.06
1031	NASDAQ	VTHR	Thu, Nov 20, 2014	94.03	94.63	94.03	94.49
1030	NASDAQ	VTHR	Wed, Nov 19, 2014	94.53	94.51	94.13	94.35
1029	NASDAQ	VTHR	Tue, Nov 18, 2014	94.13	94.72	94.13	94.71
1028	NASDAQ	VTHR	Mon, Nov 17, 2014	93.93	93.99	93.81	93.85
1027	NASDAQ	VTHR	Fri, Nov 14, 2014	94.04	94.03	93.97	94.00
1026	NASDAQ	VTHR	Thu, Nov 13, 2014	94.18	94.18	94.18	94.18
1025	NASDAQ	VTHR	Wed, Nov 12, 2014	93.73	94.12	93.77	94.12
1024	NASDAQ	VTHR	Tue, Nov 11, 2014	94.10	94.03	93.85	94.03
1023	NASDAQ	VTHR	Mon, Nov 10, 2014	93.87	93.93	93.62	93.85
1022	NASDAQ	VTHR	Fri, Nov 7, 2014	93.58	93.72	93.42	93.72
1021	NASDAQ	VTHR	Thu, Nov 6, 2014	93.31	93.47	93.00	93.47
1020	NASDAQ	VTHR	Wed, Nov 5, 2014	93.46	93.46	92.90	93.13
1019	NASDAQ	VTHR	Tue, Nov 4, 2014	92.80	92.90	92.29	92.65
1018	NASDAQ	VTHR	Mon, Nov 3, 2014	93.33	93.33	92.96	92.96
1017	NASDAQ	VTHR	Fri, Oct 31, 2014	92.87	92.91	92.61	92.85
1016	NASDAQ	VTHR	Thu, Oct 30, 2014	91.15	91.90	91.25	91.89
1015	NASDAQ	VTHR	Wed, Oct 29, 2014	91.59	91.59	90.92	91.33
1014	NASDAQ	VTHR	Tue, Oct 28, 2014	90.77	91.43	90.77	91.43
1013	NASDAQ	VTHR	Mon, Oct 27, 2014	90.57	90.57	90.11	90.33
1012	NASDAQ	VTHR	Fri, Oct 24, 2014	90.04	90.32	89.59	90.25
1011	NASDAQ	VTHR	Thu, Oct 23, 2014	89.63	90.10	89.63	90.10
1010	NASDAQ	VTHR	Wed, Oct 22, 2014	89.74	89.80	89.51	89.51
1009	NASDAQ	VTHR	Tue, Oct 21, 2014	88.30	89.45	88.41	89.37
1008	NASDAQ	VTHR	Mon, Oct 20, 2014	86.74	87.72	87.01	87.72
1007	NASDAQ	VTHR	Fri, Oct 17, 2014	87.15	87.25	86.57	86.89
1006	NASDAQ	VTHR	Thu, Oct 16, 2014	84.49	86.34	84.49	85.92
1005	NASDAQ	VTHR	Wed, Oct 15, 2014	85.39	85.86	83.93	85.86
1004	NASDAQ	VTHR	Tue, Oct 14, 2014	86.55	87.10	86.22	86.71
1003	NASDAQ	VTHR	Mon, Oct 13, 2014	87.33	87.41	86.52	86.52
1002	NASDAQ	VTHR	Fri, Oct 10, 2014	88.18	88.30	87.85	88.25
1001	NASDAQ	VTHR	Thu, Oct 9, 2014	90.17	90.18	88.41	88.42
1000	NASDAQ	VTHR	Wed, Oct 8, 2014	88.87	88.87	88.62	88.71
999	NASDAQ	VTHR	Tue, Oct 7, 2014	89.74	89.74	89.00	89.00
998	NASDAQ	VTHR	Mon, Oct 6, 2014	90.73	90.75	90.17	90.18
997	NASDAQ	VTHR	Fri, Oct 3, 2014	89.91	90.44	90.28	90.28
996	NASDAQ	VTHR	Thu, Oct 2, 2014	89.20	89.38	88.56	89.38
995	NASDAQ	VTHR	Wed, Oct 1, 2014	90.28	90.08	89.18	89.50
994	NASDAQ	VTHR	Tue, Sep 30, 2014	90.88	90.71	90.52	90.52
993	NASDAQ	VTHR	Mon, Sep 29, 2014	90.32	90.93	90.36	90.93
992	NASDAQ	VTHR	Fri, Sep 26, 2014	90.59	91.11	90.57	91.07
991	NASDAQ	VTHR	Thu, Sep 25, 2014	91.48	91.48	90.47	90.47
990	NASDAQ	VTHR	Wed, Sep 24, 2014	91.20	91.59	90.94	91.58
989	NASDAQ	VTHR	Tue, Sep 23, 2014	91.42	91.42	91.42	91.42
988	NASDAQ	VTHR	Mon, Sep 22, 2014	92.43	92.43	91.72	91.72
987	NASDAQ	VTHR	Fri, Sep 19, 2014	93.40	93.29	92.75	92.76
986	NASDAQ	VTHR	Thu, Sep 18, 2014	92.81	92.81	92.79	92.79
985	NASDAQ	VTHR	Wed, Sep 17, 2014	92.77	93.01	92.44	93.01
984	NASDAQ	VTHR	Tue, Sep 16, 2014	91.74	92.56	91.74	92.49
983	NASDAQ	VTHR	Mon, Sep 15, 2014	92.22	92.22	91.73	91.84
982	NASDAQ	VTHR	Fri, Sep 12, 2014	92.63	92.63	91.84	92.08
981	NASDAQ	VTHR	Thu, Sep 11, 2014	92.19	92.61	92.19	92.61
980	NASDAQ	VTHR	Wed, Sep 10, 2014	92.15	92.42	91.91	92.40
979	NASDAQ	VTHR	Tue, Sep 9, 2014	92.65	92.61	92.12	92.12
978	NASDAQ	VTHR	Mon, Sep 8, 2014	93.05	93.05	92.56	92.85
977	NASDAQ	VTHR	Fri, Sep 5, 2014	92.59	92.98	92.29	92.98
976	NASDAQ	VTHR	Thu, Sep 4, 2014	93.14	93.14	92.42	92.42
975	NASDAQ	VTHR	Wed, Sep 3, 2014	93.15	93.11	92.70	92.72
974	NASDAQ	VTHR	Tue, Sep 2, 2014	93.07	92.79	92.58	92.79
973	NASDAQ	VTHR	Fri, Aug 29, 2014	92.54	92.75	92.75	92.75
972	NASDAQ	VTHR	Thu, Aug 28, 2014	92.32	92.45	92.45	92.45
971	NASDAQ	VTHR	Wed, Aug 27, 2014	92.57	92.64	92.63	92.64
970	NASDAQ	VTHR	Tue, Aug 26, 2014	92.71	92.73	92.63	92.63
969	NASDAQ	VTHR	Mon, Aug 25, 2014	92.29	92.65	92.29	92.47
968	NASDAQ	VTHR	Fri, Aug 22, 2014	92.13	92.15	91.95	92.15
967	NASDAQ	VTHR	Thu, Aug 21, 2014	92.05	92.12	92.05	92.12
966	NASDAQ	VTHR	Wed, Aug 20, 2014	91.46	91.77	91.77	91.77
965	NASDAQ	VTHR	Tue, Aug 19, 2014	91.40	91.73	91.40	91.73
964	NASDAQ	VTHR	Mon, Aug 18, 2014	90.97	91.26	90.97	91.19
963	NASDAQ	VTHR	Fri, Aug 15, 2014	90.84	90.30	90.05	90.30
962	NASDAQ	VTHR	Thu, Aug 14, 2014	90.10	90.32	90.10	90.32
961	NASDAQ	VTHR	Wed, Aug 13, 2014	89.79	90.10	89.69	90.07
960	NASDAQ	VTHR	Tue, Aug 12, 2014	89.58	89.69	89.25	89.37
959	NASDAQ	VTHR	Mon, Aug 11, 2014	89.73	89.83	89.73	89.81
958	NASDAQ	VTHR	Fri, Aug 8, 2014	88.54	89.09	88.42	89.09
957	NASDAQ	VTHR	Thu, Aug 7, 2014	89.11	88.27	88.24	88.27
956	NASDAQ	VTHR	Wed, Aug 6, 2014	88.31	88.80	88.57	88.77
955	NASDAQ	VTHR	Tue, Aug 5, 2014	89.32	89.35	88.50	88.50
954	NASDAQ	VTHR	Mon, Aug 4, 2014	89.09	89.47	88.85	89.47
953	NASDAQ	VTHR	Fri, Aug 1, 2014	88.99	89.33	88.41	88.91
952	NASDAQ	VTHR	Thu, Jul 31, 2014	90.36	90.00	89.15	89.15
951	NASDAQ	VTHR	Wed, Jul 30, 2014	91.21	91.21	90.72	90.72
950	NASDAQ	VTHR	Tue, Jul 29, 2014	91.43	91.43	90.84	90.84
949	NASDAQ	VTHR	Mon, Jul 28, 2014	91.24	91.24	91.17	91.17
948	NASDAQ	VTHR	Fri, Jul 25, 2014	91.39	91.23	91.12	91.16
947	NASDAQ	VTHR	Thu, Jul 24, 2014	91.85	91.85	91.67	91.67
946	NASDAQ	VTHR	Wed, Jul 23, 2014	91.66	91.71	91.58	91.68
945	NASDAQ	VTHR	Tue, Jul 22, 2014	91.38	91.55	91.36	91.55
944	NASDAQ	VTHR	Mon, Jul 21, 2014	90.67	91.00	90.67	91.00
943	NASDAQ	VTHR	Fri, Jul 18, 2014	90.58	91.25	91.02	91.25
942	NASDAQ	VTHR	Thu, Jul 17, 2014	91.05	91.05	90.99	91.00
941	NASDAQ	VTHR	Wed, Jul 16, 2014	91.41	91.45	91.19	91.42
940	NASDAQ	VTHR	Tue, Jul 15, 2014	91.42	91.13	90.98	91.13
939	NASDAQ	VTHR	Mon, Jul 14, 2014	91.38	91.31	91.31	91.31
938	NASDAQ	VTHR	Fri, Jul 11, 2014	90.78	90.78	90.71	90.71
937	NASDAQ	VTHR	Wed, Jul 9, 2014	91.08	91.12	90.97	90.98
936	NASDAQ	VTHR	Tue, Jul 8, 2014	91.35	91.35	90.68	90.74
935	NASDAQ	VTHR	Mon, Jul 7, 2014	91.85	91.72	91.41	91.44
934	NASDAQ	VTHR	Thu, Jul 3, 2014	91.85	91.80	91.78	91.78
933	NASDAQ	VTHR	Wed, Jul 2, 2014	91.61	91.61	91.45	91.45
932	NASDAQ	VTHR	Tue, Jul 1, 2014	91.18	91.76	91.18	91.54
931	NASDAQ	VTHR	Mon, Jun 30, 2014	90.73	90.90	90.84	90.84
930	NASDAQ	VTHR	Fri, Jun 27, 2014	90.58	90.63	90.58	90.63
929	NASDAQ	VTHR	Thu, Jun 26, 2014	90.25	90.61	90.25	90.56
928	NASDAQ	VTHR	Wed, Jun 25, 2014	90.08	90.70	90.08	90.68
927	NASDAQ	VTHR	Tue, Jun 24, 2014	90.73	91.10	90.24	90.24
926	NASDAQ	VTHR	Mon, Jun 23, 2014	91.04	91.12	90.81	90.88
925	NASDAQ	VTHR	Fri, Jun 20, 2014	91.20	91.20	91.16	91.18
924	NASDAQ	VTHR	Thu, Jun 19, 2014	91.12	91.12	90.74	91.00
923	NASDAQ	VTHR	Wed, Jun 18, 2014	90.39	90.76	90.24	90.76
922	NASDAQ	VTHR	Tue, Jun 17, 2014	89.90	90.26	89.84	90.26
921	NASDAQ	VTHR	Mon, Jun 16, 2014	89.86	89.87	89.87	89.87
920	NASDAQ	VTHR	Fri, Jun 13, 2014	89.95	89.95	89.69	89.86
919	NASDAQ	VTHR	Thu, Jun 12, 2014	90.37	89.99	89.56	89.62
918	NASDAQ	VTHR	Wed, Jun 11, 2014	90.36	90.36	90.16	90.21
917	NASDAQ	VTHR	Tue, Jun 10, 2014	90.38	90.53	90.35	90.53
916	NASDAQ	VTHR	Mon, Jun 9, 2014	90.48	90.65	90.48	90.57
915	NASDAQ	VTHR	Fri, Jun 6, 2014	90.20	90.40	90.20	90.37
914	NASDAQ	VTHR	Thu, Jun 5, 2014	89.54	89.97	89.39	89.97
913	NASDAQ	VTHR	Wed, Jun 4, 2014	89.26	89.27	89.23	89.27
912	NASDAQ	VTHR	Tue, Jun 3, 2014	88.82	89.11	88.80	89.07
911	NASDAQ	VTHR	Mon, Jun 2, 2014	89.10	89.12	88.83	89.10
910	NASDAQ	VTHR	Fri, May 30, 2014	88.94	89.02	88.79	89.02
909	NASDAQ	VTHR	Thu, May 29, 2014	88.69	88.91	88.59	88.91
908	NASDAQ	VTHR	Wed, May 28, 2014	88.58	88.70	88.55	88.70
907	NASDAQ	VTHR	Tue, May 27, 2014	88.43	88.57	88.43	88.57
906	NASDAQ	VTHR	Fri, May 23, 2014	87.78	88.00	87.78	88.00
905	NASDAQ	VTHR	Thu, May 22, 2014	87.62	87.76	87.59	87.76
904	NASDAQ	VTHR	Wed, May 21, 2014	86.92	86.92	86.92	86.92
903	NASDAQ	VTHR	Tue, May 20, 2014	87.17	87.17	86.49	86.51
902	NASDAQ	VTHR	Mon, May 19, 2014	86.62	87.24	86.62	87.24
901	NASDAQ	VTHR	Fri, May 16, 2014	86.81	86.81	86.43	86.49
900	NASDAQ	VTHR	Thu, May 15, 2014	87.06	87.06	86.12	86.40
899	NASDAQ	VTHR	Wed, May 14, 2014	87.57	87.60	87.29	87.31
898	NASDAQ	VTHR	Tue, May 13, 2014	87.93	87.93	87.79	87.79
897	NASDAQ	VTHR	Mon, May 12, 2014	87.47	87.88	87.47	87.88
896	NASDAQ	VTHR	Fri, May 9, 2014	86.62	86.62	86.53	86.53
895	NASDAQ	VTHR	Thu, May 8, 2014	86.90	87.30	86.71	86.71
894	NASDAQ	VTHR	Wed, May 7, 2014	86.73	86.75	86.50	86.60
893	NASDAQ	VTHR	Tue, May 6, 2014	87.26	87.26	86.43	86.48
892	NASDAQ	VTHR	Mon, May 5, 2014	86.87	87.16	86.60	87.16
891	NASDAQ	VTHR	Fri, May 2, 2014	87.31	87.48	87.04	87.14
890	NASDAQ	VTHR	Thu, May 1, 2014	87.25	87.38	87.17	87.17
889	NASDAQ	VTHR	Wed, Apr 30, 2014	86.73	87.12	86.73	87.12
888	NASDAQ	VTHR	Tue, Apr 29, 2014	86.77	86.93	86.76	86.90
887	NASDAQ	VTHR	Mon, Apr 28, 2014	86.84	86.84	85.84	85.84
886	NASDAQ	VTHR	Fri, Apr 25, 2014	86.61	86.61	86.23	86.29
885	NASDAQ	VTHR	Thu, Apr 24, 2014	87.00	87.40	86.67	87.14
884	NASDAQ	VTHR	Wed, Apr 23, 2014	87.13	87.13	87.05	87.05
883	NASDAQ	VTHR	Tue, Apr 22, 2014	87.20	87.37	87.20	87.27
882	NASDAQ	VTHR	Mon, Apr 21, 2014	86.59	86.71	86.59	86.65
881	NASDAQ	VTHR	Thu, Apr 17, 2014	86.19	86.61	86.19	86.61
880	NASDAQ	VTHR	Wed, Apr 16, 2014	85.94	86.18	85.67	86.18
879	NASDAQ	VTHR	Tue, Apr 15, 2014	85.26	85.26	84.11	84.87
878	NASDAQ	VTHR	Mon, Apr 14, 2014	84.95	84.97	84.14	84.27
877	NASDAQ	VTHR	Fri, Apr 11, 2014	84.59	84.52	84.24	84.52
876	NASDAQ	VTHR	Thu, Apr 10, 2014	86.26	86.27	85.00	85.10
875	NASDAQ	VTHR	Wed, Apr 9, 2014	85.97	86.96	85.97	86.85
874	NASDAQ	VTHR	Tue, Apr 8, 2014	85.66	86.20	85.66	85.96
873	NASDAQ	VTHR	Mon, Apr 7, 2014	86.57	86.57	85.46	85.70
872	NASDAQ	VTHR	Fri, Apr 4, 2014	88.32	88.32	86.67	86.67
871	NASDAQ	VTHR	Thu, Apr 3, 2014	88.28	88.28	87.71	87.86
870	NASDAQ	VTHR	Wed, Apr 2, 2014	87.93	88.21	87.81	88.10
869	NASDAQ	VTHR	Tue, Apr 1, 2014	87.26	87.68	87.26	87.59
868	NASDAQ	VTHR	Mon, Mar 31, 2014	86.24	87.16	86.24	87.21
867	NASDAQ	VTHR	Fri, Mar 28, 2014	86.18	86.68	86.14	86.18
866	NASDAQ	VTHR	Thu, Mar 27, 2014	86.03	86.20	85.53	85.93
865	NASDAQ	VTHR	Wed, Mar 26, 2014	87.13	87.13	86.11	86.11
864	NASDAQ	VTHR	Tue, Mar 25, 2014	86.93	87.10	86.33	86.33
863	NASDAQ	VTHR	Mon, Mar 24, 2014	86.96	87.28	86.05	86.67
862	NASDAQ	VTHR	Fri, Mar 21, 2014	87.99	87.75	87.75	87.75
861	NASDAQ	VTHR	Thu, Mar 20, 2014	87.21	87.64	87.21	87.64
860	NASDAQ	VTHR	Wed, Mar 19, 2014	87.66	87.66	87.12	87.12
859	NASDAQ	VTHR	Tue, Mar 18, 2014	87.23	87.69	87.23	87.68
858	NASDAQ	VTHR	Mon, Mar 17, 2014	86.49	87.05	86.49	87.05
857	NASDAQ	VTHR	Fri, Mar 14, 2014	86.07	86.49	86.07	86.20
856	NASDAQ	VTHR	Thu, Mar 13, 2014	87.52	87.43	86.22	86.22
855	NASDAQ	VTHR	Wed, Mar 12, 2014	86.91	87.28	86.91	87.14
854	NASDAQ	VTHR	Tue, Mar 11, 2014	87.93	88.01	87.27	87.27
853	NASDAQ	VTHR	Mon, Mar 10, 2014	87.81	87.71	87.50	87.71
852	NASDAQ	VTHR	Fri, Mar 7, 2014	88.27	88.27	87.61	87.80
851	NASDAQ	VTHR	Thu, Mar 6, 2014	87.99	88.03	87.86	87.86
850	NASDAQ	VTHR	Wed, Mar 5, 2014	87.75	87.77	87.68	87.72
849	NASDAQ	VTHR	Tue, Mar 4, 2014	87.12	87.72	87.12	87.72
848	NASDAQ	VTHR	Mon, Mar 3, 2014	86.14	86.38	86.05	86.27
847	NASDAQ	VTHR	Fri, Feb 28, 2014	86.71	87.36	86.70	86.97
846	NASDAQ	VTHR	Thu, Feb 27, 2014	86.22	86.22	86.22	86.22
845	NASDAQ	VTHR	Wed, Feb 26, 2014	86.52	86.66	86.32	86.32
844	NASDAQ	VTHR	Tue, Feb 25, 2014	86.49	86.49	86.06	86.25
843	NASDAQ	VTHR	Mon, Feb 24, 2014	86.08	86.62	86.08	86.56
842	NASDAQ	VTHR	Fri, Feb 21, 2014	86.12	86.18	86.13	86.14
841	NASDAQ	VTHR	Thu, Feb 20, 2014	85.52	85.97	85.87	85.95
840	NASDAQ	VTHR	Wed, Feb 19, 2014	85.77	86.03	85.56	85.69
839	NASDAQ	VTHR	Tue, Feb 18, 2014	85.80	85.96	85.70	85.90
838	NASDAQ	VTHR	Fri, Feb 14, 2014	85.24	85.77	85.08	85.72
837	NASDAQ	VTHR	Thu, Feb 13, 2014	84.19	85.31	84.19	85.27
836	NASDAQ	VTHR	Wed, Feb 12, 2014	84.88	84.91	84.64	84.66
835	NASDAQ	VTHR	Tue, Feb 11, 2014	83.83	84.71	84.55	84.64
834	NASDAQ	VTHR	Mon, Feb 10, 2014	83.73	83.73	83.37	83.67
833	NASDAQ	VTHR	Fri, Feb 7, 2014	83.01	83.49	83.00	83.49
832	NASDAQ	VTHR	Thu, Feb 6, 2014	81.60	82.48	82.13	82.48
831	NASDAQ	VTHR	Wed, Feb 5, 2014	81.43	81.62	81.29	81.50
830	NASDAQ	VTHR	Tue, Feb 4, 2014	81.52	81.73	81.39	81.55
829	NASDAQ	VTHR	Mon, Feb 3, 2014	82.94	83.08	80.90	80.90
828	NASDAQ	VTHR	Fri, Jan 31, 2014	82.83	83.35	83.09	83.35
827	NASDAQ	VTHR	Thu, Jan 30, 2014	83.14	83.55	83.17	83.53
826	NASDAQ	VTHR	Wed, Jan 29, 2014	82.82	83.09	82.56	82.62
825	NASDAQ	VTHR	Tue, Jan 28, 2014	83.03	83.38	82.95	83.38
824	NASDAQ	VTHR	Mon, Jan 27, 2014	83.36	83.42	82.56	83.15
823	NASDAQ	VTHR	Fri, Jan 24, 2014	84.41	84.26	83.50	83.51
822	NASDAQ	VTHR	Thu, Jan 23, 2014	85.60	85.37	84.81	84.81
821	NASDAQ	VTHR	Wed, Jan 22, 2014	85.72	85.90	85.86	85.90
820	NASDAQ	VTHR	Tue, Jan 21, 2014	86.05	86.05	85.48	85.70
819	NASDAQ	VTHR	Fri, Jan 17, 2014	85.69	85.78	85.67	85.67
818	NASDAQ	VTHR	Thu, Jan 16, 2014	85.84	85.87	85.72	85.87
817	NASDAQ	VTHR	Wed, Jan 15, 2014	85.73	85.98	85.81	85.97
816	NASDAQ	VTHR	Tue, Jan 14, 2014	84.85	85.44	85.16	85.44
815	NASDAQ	VTHR	Mon, Jan 13, 2014	85.53	85.57	84.45	84.47
814	NASDAQ	VTHR	Fri, Jan 10, 2014	85.41	85.61	85.21	85.61
813	NASDAQ	VTHR	Thu, Jan 9, 2014	85.50	85.51	85.11	85.36
812	NASDAQ	VTHR	Wed, Jan 8, 2014	85.21	85.34	85.21	85.31
811	NASDAQ	VTHR	Tue, Jan 7, 2014	85.07	85.29	85.07	85.24
810	NASDAQ	VTHR	Mon, Jan 6, 2014	85.37	85.21	84.69	84.78
809	NASDAQ	VTHR	Fri, Jan 3, 2014	85.20	85.23	84.98	85.12
808	NASDAQ	VTHR	Thu, Jan 2, 2014	85.54	85.23	84.92	84.93
807	NASDAQ	VTHR	Tue, Dec 31, 2013	85.40	85.75	85.54	85.75
806	NASDAQ	VTHR	Mon, Dec 30, 2013	85.53	85.53	85.30	85.42
805	NASDAQ	VTHR	Fri, Dec 27, 2013	85.70	85.70	85.36	85.40
804	NASDAQ	VTHR	Thu, Dec 26, 2013	85.32	85.43	85.29	85.43
803	NASDAQ	VTHR	Tue, Dec 24, 2013	84.78	85.08	84.78	85.06
802	NASDAQ	VTHR	Mon, Dec 23, 2013	84.61	84.88	84.72	84.81
801	NASDAQ	VTHR	Fri, Dec 20, 2013	83.76	84.44	83.76	84.38
800	NASDAQ	VTHR	Thu, Dec 19, 2013	84.09	84.21	84.09	84.17
799	NASDAQ	VTHR	Wed, Dec 18, 2013	83.07	84.29	82.59	84.29
798	NASDAQ	VTHR	Tue, Dec 17, 2013	83.25	83.25	82.92	83.11
797	NASDAQ	VTHR	Mon, Dec 16, 2013	83.12	83.30	82.94	83.21
796	NASDAQ	VTHR	Fri, Dec 13, 2013	82.64	82.78	82.49	82.60
795	NASDAQ	VTHR	Thu, Dec 12, 2013	82.78	82.71	82.57	82.57
794	NASDAQ	VTHR	Wed, Dec 11, 2013	83.86	83.08	82.79	82.79
793	NASDAQ	VTHR	Tue, Dec 10, 2013	83.96	83.78	83.78	83.78
792	NASDAQ	VTHR	Mon, Dec 9, 2013	84.21	84.21	84.07	84.09
791	NASDAQ	VTHR	Fri, Dec 6, 2013	83.72	83.97	83.55	83.97
790	NASDAQ	VTHR	Thu, Dec 5, 2013	83.28	83.12	82.95	82.97
789	NASDAQ	VTHR	Wed, Dec 4, 2013	83.16	83.49	83.14	83.38
788	NASDAQ	VTHR	Tue, Dec 3, 2013	83.53	83.61	83.13	83.42
787	NASDAQ	VTHR	Mon, Dec 2, 2013	83.89	84.05	83.61	83.61
786	NASDAQ	VTHR	Fri, Nov 29, 2013	84.21	84.24	84.09	84.09
785	NASDAQ	VTHR	Wed, Nov 27, 2013	83.96	84.04	83.91	84.04
784	NASDAQ	VTHR	Tue, Nov 26, 2013	83.75	83.78	83.63	83.78
783	NASDAQ	VTHR	Mon, Nov 25, 2013	83.91	83.91	83.75	83.75
782	NASDAQ	VTHR	Fri, Nov 22, 2013	83.38	83.64	83.48	83.64
781	NASDAQ	VTHR	Thu, Nov 21, 2013	82.87	83.39	82.87	83.31
780	NASDAQ	VTHR	Wed, Nov 20, 2013	83.06	82.61	82.52	82.52
779	NASDAQ	VTHR	Tue, Nov 19, 2013	83.09	83.29	82.98	83.00
778	NASDAQ	VTHR	Mon, Nov 18, 2013	83.80	83.80	83.35	83.35
777	NASDAQ	VTHR	Fri, Nov 15, 2013	83.32	83.51	83.20	83.47
776	NASDAQ	VTHR	Thu, Nov 14, 2013	82.92	83.20	82.83	83.20
775	NASDAQ	VTHR	Wed, Nov 13, 2013	82.11	82.77	82.11	82.77
774	NASDAQ	VTHR	Tue, Nov 12, 2013	82.12	82.19	81.91	81.99
773	NASDAQ	VTHR	Mon, Nov 11, 2013	82.18	82.26	82.18	82.26
772	NASDAQ	VTHR	Fri, Nov 8, 2013	81.87	82.10	81.84	82.10
771	NASDAQ	VTHR	Thu, Nov 7, 2013	82.23	81.83	81.23	81.36
770	NASDAQ	VTHR	Wed, Nov 6, 2013	82.35	82.20	82.13	82.13
769	NASDAQ	VTHR	Tue, Nov 5, 2013	81.98	81.98	81.79	81.97
768	NASDAQ	VTHR	Mon, Nov 4, 2013	82.13	82.13	81.92	81.99
767	NASDAQ	VTHR	Fri, Nov 1, 2013	81.89	81.89	81.38	81.49
766	NASDAQ	VTHR	Thu, Oct 31, 2013	81.96	81.95	81.74	81.75
765	NASDAQ	VTHR	Wed, Oct 30, 2013	82.45	82.20	81.82	81.92
764	NASDAQ	VTHR	Tue, Oct 29, 2013	82.06	82.35	82.06	82.29
763	NASDAQ	VTHR	Mon, Oct 28, 2013	82.10	82.11	81.82	82.11
762	NASDAQ	VTHR	Fri, Oct 25, 2013	81.87	81.94	81.65	81.92
761	NASDAQ	VTHR	Thu, Oct 24, 2013	81.40	81.62	81.40	81.62
760	NASDAQ	VTHR	Wed, Oct 23, 2013	81.54	81.54	81.07	81.27
759	NASDAQ	VTHR	Tue, Oct 22, 2013	81.58	81.58	81.58	81.58
758	NASDAQ	VTHR	Mon, Oct 21, 2013	81.43	81.47	81.11	81.23
757	NASDAQ	VTHR	Fri, Oct 18, 2013	81.09	81.27	81.04	81.27
756	NASDAQ	VTHR	Thu, Oct 17, 2013	79.91	80.67	80.00	80.62
755	NASDAQ	VTHR	Wed, Oct 16, 2013	79.59	80.08	79.86	80.08
754	NASDAQ	VTHR	Tue, Oct 15, 2013	79.47	79.55	79.21	79.21
753	NASDAQ	VTHR	Fri, Oct 11, 2013	78.68	79.25	79.09	79.10
752	NASDAQ	VTHR	Thu, Oct 10, 2013	77.90	78.37	77.90	78.37
751	NASDAQ	VTHR	Wed, Oct 9, 2013	77.10	77.10	76.80	76.80
750	NASDAQ	VTHR	Tue, Oct 8, 2013	78.13	78.13	77.08	77.08
749	NASDAQ	VTHR	Mon, Oct 7, 2013	78.27	78.47	78.24	78.41
748	NASDAQ	VTHR	Thu, Oct 3, 2013	78.82	78.38	78.38	78.38
747	NASDAQ	VTHR	Wed, Oct 2, 2013	78.50	78.57	78.57	78.57
746	NASDAQ	VTHR	Tue, Oct 1, 2013	78.43	79.04	78.78	78.87
745	NASDAQ	VTHR	Mon, Sep 30, 2013	78.10	78.42	78.05	78.21
744	NASDAQ	VTHR	Fri, Sep 27, 2013	78.72	78.75	78.67	78.67
743	NASDAQ	VTHR	Thu, Sep 26, 2013	78.87	79.22	78.80	78.84
742	NASDAQ	VTHR	Wed, Sep 25, 2013	78.97	79.03	78.85	79.01
741	NASDAQ	VTHR	Tue, Sep 24, 2013	78.98	79.22	78.98	79.13
740	NASDAQ	VTHR	Mon, Sep 23, 2013	78.91	78.91	78.91	78.91
739	NASDAQ	VTHR	Fri, Sep 20, 2013	80.39	80.02	79.75	79.75
738	NASDAQ	VTHR	Thu, Sep 19, 2013	80.40	80.39	80.19	80.19
737	NASDAQ	VTHR	Wed, Sep 18, 2013	79.43	80.30	79.15	80.22
736	NASDAQ	VTHR	Tue, Sep 17, 2013	78.87	79.38	79.28	79.38
735	NASDAQ	VTHR	Mon, Sep 16, 2013	79.40	79.40	78.91	78.91
734	NASDAQ	VTHR	Fri, Sep 13, 2013	78.48	78.54	78.48	78.54
733	NASDAQ	VTHR	Thu, Sep 12, 2013	78.61	78.61	78.36	78.39
732	NASDAQ	VTHR	Wed, Sep 11, 2013	78.26	78.48	78.10	78.48
731	NASDAQ	VTHR	Tue, Sep 10, 2013	78.22	78.28	78.18	78.28
730	NASDAQ	VTHR	Mon, Sep 9, 2013	77.14	77.65	77.43	77.64
729	NASDAQ	VTHR	Fri, Sep 6, 2013	77.16	77.27	76.57	77.27
728	NASDAQ	VTHR	Thu, Sep 5, 2013	76.63	76.97	76.63	76.85
727	NASDAQ	VTHR	Wed, Sep 4, 2013	76.19	76.80	76.19	76.80
726	NASDAQ	VTHR	Tue, Sep 3, 2013	76.51	76.14	75.80	76.14
725	NASDAQ	VTHR	Fri, Aug 30, 2013	76.36	76.36	75.80	75.90
724	NASDAQ	VTHR	Thu, Aug 29, 2013	75.71	76.46	75.71	76.46
723	NASDAQ	VTHR	Wed, Aug 28, 2013	75.90	76.22	75.88	76.20
722	NASDAQ	VTHR	Tue, Aug 27, 2013	76.29	76.36	75.81	75.87
721	NASDAQ	VTHR	Mon, Aug 26, 2013	77.21	77.49	77.07	77.07
720	NASDAQ	VTHR	Fri, Aug 23, 2013	77.23	77.14	76.99	77.14
719	NASDAQ	VTHR	Thu, Aug 22, 2013	76.42	76.90	76.42	76.88
718	NASDAQ	VTHR	Wed, Aug 21, 2013	76.43	76.43	76.43	76.43
717	NASDAQ	VTHR	Tue, Aug 20, 2013	76.38	76.86	76.42	76.67
716	NASDAQ	VTHR	Fri, Aug 16, 2013	76.97	76.97	76.80	76.80
715	NASDAQ	VTHR	Thu, Aug 15, 2013	77.54	77.19	76.96	76.98
714	NASDAQ	VTHR	Wed, Aug 14, 2013	78.19	78.19	78.18	78.18
713	NASDAQ	VTHR	Tue, Aug 13, 2013	78.08	78.52	78.07	78.52
712	NASDAQ	VTHR	Mon, Aug 12, 2013	78.07	78.34	78.07	78.34
711	NASDAQ	VTHR	Fri, Aug 9, 2013	78.52	78.73	78.52	78.52
710	NASDAQ	VTHR	Thu, Aug 8, 2013	78.40	78.41	78.40	78.41
709	NASDAQ	VTHR	Wed, Aug 7, 2013	78.27	78.27	78.05	78.13
708	NASDAQ	VTHR	Tue, Aug 6, 2013	79.10	79.10	78.54	78.54
707	NASDAQ	VTHR	Mon, Aug 5, 2013	79.10	79.14	78.93	79.11
706	NASDAQ	VTHR	Fri, Aug 2, 2013	78.83	79.00	79.00	79.00
705	NASDAQ	VTHR	Thu, Aug 1, 2013	78.65	79.04	78.86	79.04
704	NASDAQ	VTHR	Wed, Jul 31, 2013	78.49	78.00	78.00	78.00
703	NASDAQ	VTHR	Tue, Jul 30, 2013	78.09	78.12	77.82	77.82
702	NASDAQ	VTHR	Mon, Jul 29, 2013	77.92	77.92	77.84	77.87
701	NASDAQ	VTHR	Fri, Jul 26, 2013	77.90	78.01	77.90	78.01
700	NASDAQ	VTHR	Tue, Jul 23, 2013	78.48	78.48	78.15	78.15
699	NASDAQ	VTHR	Mon, Jul 22, 2013	78.30	78.32	78.13	78.30
698	NASDAQ	VTHR	Fri, Jul 19, 2013	77.87	78.15	77.79	78.14
697	NASDAQ	VTHR	Thu, Jul 18, 2013	78.07	78.08	78.05	78.05
696	NASDAQ	VTHR	Wed, Jul 17, 2013	77.57	77.70	77.57	77.62
695	NASDAQ	VTHR	Tue, Jul 16, 2013	77.69	77.60	77.31	77.32
694	NASDAQ	VTHR	Mon, Jul 15, 2013	77.68	77.76	77.68	77.68
693	NASDAQ	VTHR	Fri, Jul 12, 2013	77.38	77.52	77.27	77.47
692	NASDAQ	VTHR	Thu, Jul 11, 2013	77.13	77.27	76.95	77.27
691	NASDAQ	VTHR	Tue, Jul 9, 2013	76.13	76.21	75.99	76.21
690	NASDAQ	VTHR	Mon, Jul 8, 2013	75.58	75.82	75.58	75.64
689	NASDAQ	VTHR	Fri, Jul 5, 2013	74.94	75.23	74.66	75.23
688	NASDAQ	VTHR	Wed, Jul 3, 2013	74.15	74.31	74.15	74.31
687	NASDAQ	VTHR	Tue, Jul 2, 2013	74.46	74.78	74.26	74.26
686	NASDAQ	VTHR	Mon, Jul 1, 2013	74.36	74.93	74.36	74.93
685	NASDAQ	VTHR	Fri, Jun 28, 2013	74.10	74.40	73.89	73.90
684	NASDAQ	VTHR	Thu, Jun 27, 2013	74.29	74.34	74.27	74.27
683	NASDAQ	VTHR	Wed, Jun 26, 2013	73.69	73.82	73.35	73.73
682	NASDAQ	VTHR	Tue, Jun 25, 2013	72.85	73.16	72.85	73.12
681	NASDAQ	VTHR	Mon, Jun 24, 2013	72.55	72.60	71.66	72.57
680	NASDAQ	VTHR	Fri, Jun 21, 2013	73.78	73.68	73.01	73.55
679	NASDAQ	VTHR	Thu, Jun 20, 2013	74.51	73.92	73.31	73.32
678	NASDAQ	VTHR	Wed, Jun 19, 2013	76.24	76.24	75.61	75.61
677	NASDAQ	VTHR	Tue, Jun 18, 2013	75.74	76.31	75.74	76.26
676	NASDAQ	VTHR	Mon, Jun 17, 2013	75.84	75.85	75.56	75.66
675	NASDAQ	VTHR	Fri, Jun 14, 2013	75.49	75.07	75.04	75.07
674	NASDAQ	VTHR	Thu, Jun 13, 2013	74.42	74.61	74.42	74.61
673	NASDAQ	VTHR	Wed, Jun 12, 2013	75.49	75.49	74.50	74.51
672	NASDAQ	VTHR	Tue, Jun 11, 2013	75.16	75.62	75.16	75.18
671	NASDAQ	VTHR	Mon, Jun 10, 2013	75.96	75.99	75.71	75.81
670	NASDAQ	VTHR	Fri, Jun 7, 2013	75.39	75.81	75.39	75.81
669	NASDAQ	VTHR	Thu, Jun 6, 2013	74.16	74.47	73.97	74.03
668	NASDAQ	VTHR	Wed, Jun 5, 2013	74.97	74.41	74.17	74.17
667	NASDAQ	VTHR	Tue, Jun 4, 2013	75.63	75.86	75.14	75.14
666	NASDAQ	VTHR	Mon, Jun 3, 2013	75.32	75.44	75.03	75.44
665	NASDAQ	VTHR	Fri, May 31, 2013	76.17	76.25	76.02	76.20
664	NASDAQ	VTHR	Thu, May 30, 2013	76.09	76.48	76.33	76.48
663	NASDAQ	VTHR	Wed, May 29, 2013	76.18	76.18	75.73	76.05
662	NASDAQ	VTHR	Tue, May 28, 2013	76.85	76.86	76.85	76.86
661	NASDAQ	VTHR	Fri, May 24, 2013	75.73	75.74	75.68	75.68
660	NASDAQ	VTHR	Thu, May 23, 2013	75.65	76.07	75.65	76.07
659	NASDAQ	VTHR	Wed, May 22, 2013	77.08	77.65	76.26	76.26
658	NASDAQ	VTHR	Tue, May 21, 2013	77.05	77.09	76.83	77.05
657	NASDAQ	VTHR	Mon, May 20, 2013	76.83	76.95	76.83	76.95
656	NASDAQ	VTHR	Fri, May 17, 2013	76.35	76.85	76.41	76.85
655	NASDAQ	VTHR	Thu, May 16, 2013	76.38	76.57	76.38	76.50
654	NASDAQ	VTHR	Wed, May 15, 2013	76.04	76.44	76.09	76.43
653	NASDAQ	VTHR	Tue, May 14, 2013	75.41	76.10	75.41	76.08
652	NASDAQ	VTHR	Mon, May 13, 2013	75.23	75.29	75.22	75.27
651	NASDAQ	VTHR	Fri, May 10, 2013	75.10	75.14	75.04	75.14
650	NASDAQ	VTHR	Thu, May 9, 2013	75.21	75.21	75.21	75.21
649	NASDAQ	VTHR	Wed, May 8, 2013	74.81	75.14	74.81	75.14
648	NASDAQ	VTHR	Tue, May 7, 2013	74.62	74.83	74.42	74.83
647	NASDAQ	VTHR	Mon, May 6, 2013	74.33	74.57	74.31	74.57
646	NASDAQ	VTHR	Fri, May 3, 2013	74.14	74.38	74.14	74.30
645	NASDAQ	VTHR	Thu, May 2, 2013	72.96	73.52	73.18	73.50
644	NASDAQ	VTHR	Wed, May 1, 2013	73.29	73.29	72.99	73.04
643	NASDAQ	VTHR	Tue, Apr 30, 2013	73.32	73.53	73.32	73.53
642	NASDAQ	VTHR	Mon, Apr 29, 2013	73.30	73.30	73.30	73.30
641	NASDAQ	VTHR	Fri, Apr 26, 2013	72.66	72.98	72.66	72.86
640	NASDAQ	VTHR	Thu, Apr 25, 2013	72.76	73.18	72.76	73.15
639	NASDAQ	VTHR	Wed, Apr 24, 2013	72.56	72.75	72.56	72.75
638	NASDAQ	VTHR	Mon, Apr 22, 2013	71.50	71.83	71.17	71.83
637	NASDAQ	VTHR	Fri, Apr 19, 2013	71.47	71.47	71.47	71.47
636	NASDAQ	VTHR	Thu, Apr 18, 2013	70.59	71.10	71.10	71.10
635	NASDAQ	VTHR	Wed, Apr 17, 2013	71.87	71.26	71.00	71.00
634	NASDAQ	VTHR	Tue, Apr 16, 2013	71.82	72.19	71.80	72.19
633	NASDAQ	VTHR	Mon, Apr 15, 2013	72.78	72.78	71.47	71.47
632	NASDAQ	VTHR	Fri, Apr 12, 2013	73.01	73.01	72.85	73.01
631	NASDAQ	VTHR	Thu, Apr 11, 2013	73.11	73.25	73.11	73.25
630	NASDAQ	VTHR	Wed, Apr 10, 2013	72.81	73.15	72.80	73.13
629	NASDAQ	VTHR	Tue, Apr 9, 2013	72.10	72.31	72.02	72.31
628	NASDAQ	VTHR	Mon, Apr 8, 2013	71.53	71.53	71.39	71.39
627	NASDAQ	VTHR	Fri, Apr 5, 2013	70.89	71.42	70.89	71.42
626	NASDAQ	VTHR	Thu, Apr 4, 2013	71.53	71.69	71.45	71.45
625	NASDAQ	VTHR	Wed, Apr 3, 2013	71.43	71.52	71.30	71.43
624	NASDAQ	VTHR	Tue, Apr 2, 2013	72.27	72.44	72.43	72.44
623	NASDAQ	VTHR	Mon, Apr 1, 2013	72.40	72.40	71.96	71.98
622	NASDAQ	VTHR	Thu, Mar 28, 2013	72.12	72.27	72.12	72.25
621	NASDAQ	VTHR	Wed, Mar 27, 2013	71.70	72.09	71.56	72.09
620	NASDAQ	VTHR	Tue, Mar 26, 2013	71.91	71.98	71.98	71.98
619	NASDAQ	VTHR	Mon, Mar 25, 2013	72.09	72.09	71.33	71.45
618	NASDAQ	VTHR	Fri, Mar 22, 2013	71.52	71.79	71.56	71.71
617	NASDAQ	VTHR	Thu, Mar 21, 2013	71.81	71.89	71.74	71.74
616	NASDAQ	VTHR	Wed, Mar 20, 2013	72.23	72.31	72.19	72.31
615	NASDAQ	VTHR	Tue, Mar 19, 2013	72.07	72.07	71.48	71.49
614	NASDAQ	VTHR	Mon, Mar 18, 2013	71.58	71.93	71.58	71.93
613	NASDAQ	VTHR	Fri, Mar 15, 2013	72.27	72.27	72.07	72.17
612	NASDAQ	VTHR	Thu, Mar 14, 2013	72.18	72.32	72.23	72.32
611	NASDAQ	VTHR	Wed, Mar 13, 2013	71.85	71.93	71.84	71.93
610	NASDAQ	VTHR	Tue, Mar 12, 2013	71.84	71.84	71.76	71.76
609	NASDAQ	VTHR	Mon, Mar 11, 2013	71.68	71.90	71.58	71.87
608	NASDAQ	VTHR	Fri, Mar 8, 2013	71.66	71.70	71.53	71.70
607	NASDAQ	VTHR	Thu, Mar 7, 2013	71.26	71.39	71.24	71.38
606	NASDAQ	VTHR	Wed, Mar 6, 2013	71.34	71.34	71.05	71.20
605	NASDAQ	VTHR	Tue, Mar 5, 2013	70.94	71.21	70.89	71.17
604	NASDAQ	VTHR	Mon, Mar 4, 2013	69.95	70.33	69.83	70.33
603	NASDAQ	VTHR	Fri, Mar 1, 2013	69.42	70.12	69.42	70.05
602	NASDAQ	VTHR	Thu, Feb 28, 2013	69.89	70.36	69.87	69.87
601	NASDAQ	VTHR	Wed, Feb 27, 2013	68.90	70.10	68.90	70.10
600	NASDAQ	VTHR	Tue, Feb 26, 2013	68.87	69.10	68.60	69.10
599	NASDAQ	VTHR	Mon, Feb 25, 2013	70.36	70.36	68.64	68.64
598	NASDAQ	VTHR	Fri, Feb 22, 2013	69.64	69.66	69.54	69.64
597	NASDAQ	VTHR	Thu, Feb 21, 2013	69.62	69.62	69.30	69.30
596	NASDAQ	VTHR	Wed, Feb 20, 2013	70.44	70.44	69.80	69.80
595	NASDAQ	VTHR	Tue, Feb 19, 2013	70.24	70.71	70.24	70.71
594	NASDAQ	VTHR	Fri, Feb 15, 2013	70.20	70.22	70.20	70.22
593	NASDAQ	VTHR	Thu, Feb 14, 2013	70.16	70.30	69.89	70.19
592	NASDAQ	VTHR	Wed, Feb 13, 2013	70.02	70.02	69.98	69.98
591	NASDAQ	VTHR	Tue, Feb 12, 2013	70.06	70.06	70.06	70.06
590	NASDAQ	VTHR	Mon, Feb 11, 2013	69.90	69.92	69.83	69.89
589	NASDAQ	VTHR	Fri, Feb 8, 2013	69.56	69.95	69.56	69.91
588	NASDAQ	VTHR	Fri, Feb 1, 2013	68.99	69.73	68.99	69.63
587	NASDAQ	VTHR	Thu, Jan 31, 2013	68.96	69.02	68.96	69.02
586	NASDAQ	VTHR	Wed, Jan 30, 2013	69.38	69.46	69.00	69.01
585	NASDAQ	VTHR	Tue, Jan 29, 2013	69.09	69.45	69.09	69.42
584	NASDAQ	VTHR	Mon, Jan 28, 2013	69.20	69.22	68.89	69.18
583	NASDAQ	VTHR	Fri, Jan 25, 2013	68.93	69.24	68.93	69.21
582	NASDAQ	VTHR	Wed, Jan 23, 2013	68.72	68.84	68.67	68.78
581	NASDAQ	VTHR	Tue, Jan 22, 2013	68.34	68.68	68.24	68.68
580	NASDAQ	VTHR	Fri, Jan 18, 2013	68.12	68.34	67.90	68.34
579	NASDAQ	VTHR	Thu, Jan 17, 2013	68.00	68.12	68.00	68.12
578	NASDAQ	VTHR	Wed, Jan 16, 2013	67.73	67.76	67.50	67.75
577	NASDAQ	VTHR	Tue, Jan 15, 2013	67.36	67.55	67.36	67.55
576	NASDAQ	VTHR	Mon, Jan 14, 2013	67.60	67.61	67.52	67.61
575	NASDAQ	VTHR	Fri, Jan 11, 2013	67.64	67.67	67.43	67.58
574	NASDAQ	VTHR	Thu, Jan 10, 2013	67.51	67.52	67.26	67.26
573	NASDAQ	VTHR	Wed, Jan 9, 2013	67.15	67.26	67.15	67.26
572	NASDAQ	VTHR	Tue, Jan 8, 2013	67.07	67.07	66.83	67.02
571	NASDAQ	VTHR	Mon, Jan 7, 2013	67.13	67.20	66.98	67.20
570	NASDAQ	VTHR	Fri, Jan 4, 2013	67.10	67.30	67.10	67.29
569	NASDAQ	VTHR	Thu, Jan 3, 2013	67.01	67.01	66.91	66.91
568	NASDAQ	VTHR	Wed, Jan 2, 2013	65.42	67.09	65.42	67.03
567	NASDAQ	VTHR	Mon, Dec 31, 2012	64.30	65.42	64.12	65.22
566	NASDAQ	VTHR	Fri, Dec 28, 2012	64.64	64.87	64.41	64.42
565	NASDAQ	VTHR	Thu, Dec 27, 2012	65.06	65.06	64.61	64.61
564	NASDAQ	VTHR	Wed, Dec 26, 2012	65.37	65.48	64.92	65.08
563	NASDAQ	VTHR	Mon, Dec 24, 2012	65.53	65.53	65.28	65.37
562	NASDAQ	VTHR	Fri, Dec 21, 2012	65.73	66.06	65.66	66.03
561	NASDAQ	VTHR	Thu, Dec 20, 2012	66.11	66.50	66.11	66.47
560	NASDAQ	VTHR	Wed, Dec 19, 2012	66.57	66.61	66.15	66.24
559	NASDAQ	VTHR	Tue, Dec 18, 2012	65.78	66.61	65.78	66.61
558	NASDAQ	VTHR	Mon, Dec 17, 2012	65.02	65.79	65.02	65.69
557	NASDAQ	VTHR	Fri, Dec 14, 2012	65.26	65.26	64.94	65.18
556	NASDAQ	VTHR	Thu, Dec 13, 2012	65.51	65.51	65.19	65.19
555	NASDAQ	VTHR	Wed, Dec 12, 2012	65.66	66.11	65.57	66.01
554	NASDAQ	VTHR	Tue, Dec 11, 2012	65.68	65.68	65.52	65.52
553	NASDAQ	VTHR	Mon, Dec 10, 2012	65.23	65.23	65.22	65.22
552	NASDAQ	VTHR	Fri, Dec 7, 2012	65.03	65.03	65.03	65.03
551	NASDAQ	VTHR	Thu, Dec 6, 2012	64.71	64.86	64.71	64.86
550	NASDAQ	VTHR	Wed, Dec 5, 2012	64.74	64.74	64.74	64.74
549	NASDAQ	VTHR	Tue, Dec 4, 2012	64.75	64.75	64.56	64.56
548	NASDAQ	VTHR	Mon, Dec 3, 2012	65.04	65.08	64.80	64.80
547	NASDAQ	VTHR	Fri, Nov 30, 2012	65.00	65.12	64.80	64.94
546	NASDAQ	VTHR	Thu, Nov 29, 2012	64.67	65.12	64.67	65.05
545	NASDAQ	VTHR	Wed, Nov 28, 2012	64.17	64.67	63.54	64.61
544	NASDAQ	VTHR	Tue, Nov 27, 2012	64.32	64.49	64.12	64.13
543	NASDAQ	VTHR	Mon, Nov 26, 2012	64.55	64.55	64.06	64.13
542	NASDAQ	VTHR	Fri, Nov 23, 2012	63.74	64.55	63.74	64.15
541	NASDAQ	VTHR	Wed, Nov 21, 2012	63.63	63.65	63.55	63.60
540	NASDAQ	VTHR	Tue, Nov 20, 2012	63.41	63.53	63.37	63.51
539	NASDAQ	VTHR	Mon, Nov 19, 2012	62.90	63.47	62.90	63.47
538	NASDAQ	VTHR	Fri, Nov 16, 2012	61.82	62.27	61.50	62.27
537	NASDAQ	VTHR	Thu, Nov 15, 2012	62.03	62.25	61.64	61.87
536	NASDAQ	VTHR	Wed, Nov 14, 2012	62.03	62.03	62.03	62.03
535	NASDAQ	VTHR	Tue, Nov 13, 2012	63.56	63.56	62.97	62.97
534	NASDAQ	VTHR	Mon, Nov 12, 2012	63.17	63.39	63.05	63.33
533	NASDAQ	VTHR	Fri, Nov 9, 2012	63.07	63.69	62.86	63.14
532	NASDAQ	VTHR	Thu, Nov 8, 2012	63.86	63.95	63.22	63.22
531	NASDAQ	VTHR	Wed, Nov 7, 2012	64.52	64.52	64.03	64.03
530	NASDAQ	VTHR	Tue, Nov 6, 2012	65.13	65.50	65.13	65.37
529	NASDAQ	VTHR	Mon, Nov 5, 2012	64.62	64.62	64.62	64.62
528	NASDAQ	VTHR	Fri, Nov 2, 2012	65.30	65.59	64.60	64.67
527	NASDAQ	VTHR	Thu, Nov 1, 2012	64.53	65.32	64.53	64.66
526	NASDAQ	VTHR	Wed, Oct 31, 2012	64.59	64.68	64.59	64.68
525	NASDAQ	VTHR	Fri, Oct 26, 2012	64.52	64.69	64.05	64.44
524	NASDAQ	VTHR	Thu, Oct 25, 2012	64.29	64.29	64.29	64.29
523	NASDAQ	VTHR	Wed, Oct 24, 2012	64.67	64.67	64.50	64.50
522	NASDAQ	VTHR	Tue, Oct 23, 2012	64.52	64.60	64.52	64.60
521	NASDAQ	VTHR	Mon, Oct 22, 2012	65.32	65.32	65.22	65.22
520	NASDAQ	VTHR	Fri, Oct 19, 2012	66.46	66.46	65.21	65.35
519	NASDAQ	VTHR	Thu, Oct 18, 2012	66.54	66.56	66.54	66.56
518	NASDAQ	VTHR	Wed, Oct 17, 2012	66.34	66.66	66.34	66.66
517	NASDAQ	VTHR	Tue, Oct 16, 2012	66.28	66.28	66.19	66.19
516	NASDAQ	VTHR	Mon, Oct 15, 2012	65.55	65.55	65.55	65.55
515	NASDAQ	VTHR	Fri, Oct 12, 2012	65.13	65.24	65.13	65.13
514	NASDAQ	VTHR	Thu, Oct 11, 2012	65.37	65.37	65.37	65.37
513	NASDAQ	VTHR	Wed, Oct 10, 2012	65.67	65.73	65.20	65.30
512	NASDAQ	VTHR	Tue, Oct 9, 2012	65.74	65.74	65.74	65.74
511	NASDAQ	VTHR	Mon, Oct 8, 2012	66.59	66.59	66.23	66.43
510	NASDAQ	VTHR	Fri, Oct 5, 2012	66.94	67.12	66.84	66.84
509	NASDAQ	VTHR	Thu, Oct 4, 2012	66.12	66.64	66.12	66.59
508	NASDAQ	VTHR	Wed, Oct 3, 2012	66.17	66.25	65.78	66.13
507	NASDAQ	VTHR	Tue, Oct 2, 2012	65.82	66.13	65.61	65.87
506	NASDAQ	VTHR	Mon, Oct 1, 2012	66.23	66.23	66.23	66.23
505	NASDAQ	VTHR	Fri, Sep 28, 2012	65.52	65.84	65.52	65.75
504	NASDAQ	VTHR	Thu, Sep 27, 2012	66.00	66.00	65.94	65.94
503	NASDAQ	VTHR	Wed, Sep 26, 2012	65.69	65.69	65.16	65.40
502	NASDAQ	VTHR	Tue, Sep 25, 2012	66.70	66.74	66.70	66.74
501	NASDAQ	VTHR	Mon, Sep 24, 2012	66.37	66.54	66.37	66.54
500	NASDAQ	VTHR	Fri, Sep 21, 2012	67.08	67.09	67.08	67.09
499	NASDAQ	VTHR	Thu, Sep 20, 2012	66.97	66.97	66.42	66.85
498	NASDAQ	VTHR	Wed, Sep 19, 2012	66.96	66.96	66.96	66.96
497	NASDAQ	VTHR	Tue, Sep 18, 2012	66.94	66.94	66.94	66.94
496	NASDAQ	VTHR	Mon, Sep 17, 2012	67.11	67.15	66.85	67.00
495	NASDAQ	VTHR	Fri, Sep 14, 2012	67.39	67.39	67.22	67.22
494	NASDAQ	VTHR	Thu, Sep 13, 2012	65.89	67.09	65.81	66.93
493	NASDAQ	VTHR	Wed, Sep 12, 2012	65.97	65.97	65.95	65.95
492	NASDAQ	VTHR	Tue, Sep 11, 2012	65.65	65.73	65.65	65.73
491	NASDAQ	VTHR	Mon, Sep 10, 2012	65.89	65.93	65.50	65.86
490	NASDAQ	VTHR	Fri, Sep 7, 2012	65.60	65.89	65.58	65.89
489	NASDAQ	VTHR	Thu, Sep 6, 2012	64.61	65.55	64.61	65.55
488	NASDAQ	VTHR	Wed, Sep 5, 2012	64.23	64.31	64.23	64.31
487	NASDAQ	VTHR	Tue, Sep 4, 2012	64.18	64.18	63.96	64.03
486	NASDAQ	VTHR	Fri, Aug 31, 2012	64.28	64.28	64.28	64.28
485	NASDAQ	VTHR	Thu, Aug 30, 2012	64.47	64.47	63.84	64.22
484	NASDAQ	VTHR	Wed, Aug 29, 2012	64.39	64.61	64.26	64.46
483	NASDAQ	VTHR	Tue, Aug 28, 2012	64.37	64.55	64.18	64.51
482	NASDAQ	VTHR	Mon, Aug 27, 2012	64.62	64.62	64.62	64.62
481	NASDAQ	VTHR	Fri, Aug 24, 2012	63.92	63.93	63.92	63.93
480	NASDAQ	VTHR	Thu, Aug 23, 2012	64.27	64.27	64.27	64.27
479	NASDAQ	VTHR	Wed, Aug 22, 2012	64.45	64.52	64.45	64.52
478	NASDAQ	VTHR	Tue, Aug 21, 2012	64.70	65.14	64.41	64.48
477	NASDAQ	VTHR	Mon, Aug 20, 2012	64.55	64.62	64.55	64.62
476	NASDAQ	VTHR	Fri, Aug 17, 2012	64.58	64.76	64.54	64.62
475	NASDAQ	VTHR	Thu, Aug 16, 2012	64.09	64.65	64.02	64.58
474	NASDAQ	VTHR	Wed, Aug 15, 2012	63.95	64.17	63.86	64.09
473	NASDAQ	VTHR	Tue, Aug 14, 2012	63.93	63.93	63.93	63.93
472	NASDAQ	VTHR	Mon, Aug 13, 2012	63.96	63.96	63.96	63.96
471	NASDAQ	VTHR	Fri, Aug 10, 2012	63.91	64.03	63.59	63.81
470	NASDAQ	VTHR	Thu, Aug 9, 2012	63.85	64.04	63.73	63.91
469	NASDAQ	VTHR	Wed, Aug 8, 2012	63.80	63.92	63.56	63.82
468	NASDAQ	VTHR	Tue, Aug 7, 2012	63.75	63.97	63.74	63.97
467	NASDAQ	VTHR	Mon, Aug 6, 2012	63.54	63.61	63.54	63.60
466	NASDAQ	VTHR	Fri, Aug 3, 2012	63.07	63.27	63.06	63.27
465	NASDAQ	VTHR	Thu, Aug 2, 2012	61.78	62.08	61.72	62.06
464	NASDAQ	VTHR	Wed, Aug 1, 2012	62.74	63.01	62.42	62.69
463	NASDAQ	VTHR	Tue, Jul 31, 2012	63.04	63.05	63.04	63.05
462	NASDAQ	VTHR	Mon, Jul 30, 2012	63.09	63.34	62.85	63.00
461	NASDAQ	VTHR	Fri, Jul 27, 2012	62.57	63.16	62.57	63.16
460	NASDAQ	VTHR	Thu, Jul 26, 2012	60.92	62.00	60.92	61.87
459	NASDAQ	VTHR	Wed, Jul 25, 2012	60.79	60.90	60.79	60.90
458	NASDAQ	VTHR	Tue, Jul 24, 2012	61.47	61.47	61.42	61.42
457	NASDAQ	VTHR	Mon, Jul 23, 2012	61.26	61.26	60.95	61.18
456	NASDAQ	VTHR	Fri, Jul 20, 2012	62.44	62.45	62.22	62.22
455	NASDAQ	VTHR	Thu, Jul 19, 2012	62.77	62.77	62.77	62.77
454	NASDAQ	VTHR	Wed, Jul 18, 2012	62.57	62.57	62.56	62.56
453	NASDAQ	VTHR	Tue, Jul 17, 2012	62.21	62.21	62.17	62.17
452	NASDAQ	VTHR	Mon, Jul 16, 2012	61.95	61.95	61.54	61.71
451	NASDAQ	VTHR	Fri, Jul 13, 2012	60.97	62.00	60.97	61.95
450	NASDAQ	VTHR	Thu, Jul 12, 2012	61.25	61.25	60.48	60.97
449	NASDAQ	VTHR	Wed, Jul 11, 2012	61.35	61.35	61.24	61.24
448	NASDAQ	VTHR	Tue, Jul 10, 2012	61.94	61.94	61.34	61.34
447	NASDAQ	VTHR	Mon, Jul 9, 2012	61.83	61.83	61.83	61.83
446	NASDAQ	VTHR	Fri, Jul 6, 2012	62.58	62.58	61.66	62.04
445	NASDAQ	VTHR	Thu, Jul 5, 2012	62.81	62.83	62.33	62.61
444	NASDAQ	VTHR	Tue, Jul 3, 2012	62.37	62.63	62.34	62.63
443	NASDAQ	VTHR	Mon, Jul 2, 2012	62.06	62.06	62.05	62.05
442	NASDAQ	VTHR	Fri, Jun 29, 2012	60.57	62.12	60.57	62.04
441	NASDAQ	VTHR	Thu, Jun 28, 2012	60.57	60.57	60.57	60.57
440	NASDAQ	VTHR	Wed, Jun 27, 2012	60.13	60.78	60.13	60.61
439	NASDAQ	VTHR	Tue, Jun 26, 2012	59.81	60.30	59.65	60.11
438	NASDAQ	VTHR	Mon, Jun 25, 2012	60.26	60.26	59.95	59.95
437	NASDAQ	VTHR	Fri, Jun 22, 2012	60.83	61.10	60.83	61.10
436	NASDAQ	VTHR	Thu, Jun 21, 2012	62.02	62.02	60.74	60.74
435	NASDAQ	VTHR	Wed, Jun 20, 2012	62.10	62.26	62.04	62.07
434	NASDAQ	VTHR	Tue, Jun 19, 2012	62.05	62.05	62.05	62.05
433	NASDAQ	VTHR	Mon, Jun 18, 2012	61.23	61.23	61.23	61.23
432	NASDAQ	VTHR	Fri, Jun 15, 2012	60.68	61.33	60.68	61.02
431	NASDAQ	VTHR	Thu, Jun 14, 2012	60.52	60.60	60.52	60.60
430	NASDAQ	VTHR	Wed, Jun 13, 2012	60.46	60.61	60.46	60.61
429	NASDAQ	VTHR	Tue, Jun 12, 2012	60.01	60.32	60.01	60.32
428	NASDAQ	VTHR	Mon, Jun 11, 2012	60.44	60.44	60.27	60.27
427	NASDAQ	VTHR	Fri, Jun 8, 2012	60.08	60.61	60.06	60.58
426	NASDAQ	VTHR	Thu, Jun 7, 2012	60.17	60.17	60.17	60.17
425	NASDAQ	VTHR	Wed, Jun 6, 2012	58.87	60.24	58.87	59.87
424	NASDAQ	VTHR	Tue, Jun 5, 2012	58.31	58.50	58.31	58.50
423	NASDAQ	VTHR	Mon, Jun 4, 2012	58.20	58.39	58.06	58.39
422	NASDAQ	VTHR	Fri, Jun 1, 2012	59.01	59.01	58.56	58.56
421	NASDAQ	VTHR	Thu, May 31, 2012	60.03	60.03	60.03	60.03
420	NASDAQ	VTHR	Wed, May 30, 2012	61.10	61.10	60.05	60.23
419	NASDAQ	VTHR	Tue, May 29, 2012	60.88	60.88	60.88	60.88
418	NASDAQ	VTHR	Fri, May 25, 2012	60.42	60.42	60.42	60.42
417	NASDAQ	VTHR	Thu, May 24, 2012	60.41	60.64	60.00	60.45
416	NASDAQ	VTHR	Wed, May 23, 2012	60.25	60.48	59.33	59.95
415	NASDAQ	VTHR	Tue, May 22, 2012	60.24	60.76	59.95	60.30
414	NASDAQ	VTHR	Mon, May 21, 2012	59.84	59.84	59.84	59.84
413	NASDAQ	VTHR	Fri, May 18, 2012	59.69	60.03	59.07	59.24
412	NASDAQ	VTHR	Thu, May 17, 2012	60.53	60.53	59.77	59.77
411	NASDAQ	VTHR	Wed, May 16, 2012	61.08	61.08	60.83	60.94
410	NASDAQ	VTHR	Tue, May 15, 2012	61.33	61.64	60.89	61.05
409	NASDAQ	VTHR	Mon, May 14, 2012	61.55	61.72	61.30	61.30
408	NASDAQ	VTHR	Fri, May 11, 2012	62.21	62.55	61.79	62.03
407	NASDAQ	VTHR	Thu, May 10, 2012	62.50	62.50	62.23	62.46
406	NASDAQ	VTHR	Wed, May 9, 2012	61.77	62.19	61.77	62.11
405	NASDAQ	VTHR	Tue, May 8, 2012	62.47	62.47	62.00	62.00
404	NASDAQ	VTHR	Mon, May 7, 2012	62.61	62.84	62.38	62.72
403	NASDAQ	VTHR	Fri, May 4, 2012	63.34	63.34	62.71	62.71
402	NASDAQ	VTHR	Thu, May 3, 2012	64.09	64.09	63.69	63.64
401	NASDAQ	VTHR	Wed, May 2, 2012	64.17	64.25	64.17	64.21
400	NASDAQ	VTHR	Tue, May 1, 2012	64.00	64.82	63.92	64.32
399	NASDAQ	VTHR	Mon, Apr 30, 2012	64.30	64.30	63.84	64.00
398	NASDAQ	VTHR	Fri, Apr 27, 2012	64.23	64.51	64.23	64.49
397	NASDAQ	VTHR	Thu, Apr 26, 2012	63.65	64.19	63.51	63.71
396	NASDAQ	VTHR	Wed, Apr 25, 2012	62.75	63.67	62.75	63.65
395	NASDAQ	VTHR	Tue, Apr 24, 2012	62.51	62.91	62.51	62.74
394	NASDAQ	VTHR	Mon, Apr 23, 2012	62.42	62.54	62.42	62.51
393	NASDAQ	VTHR	Fri, Apr 20, 2012	62.99	63.49	62.99	63.08
392	NASDAQ	VTHR	Thu, Apr 19, 2012	63.34	63.64	62.69	63.00
391	NASDAQ	VTHR	Wed, Apr 18, 2012	63.61	63.61	63.24	63.34
390	NASDAQ	VTHR	Tue, Apr 17, 2012	63.22	63.22	63.22	63.61
389	NASDAQ	VTHR	Mon, Apr 16, 2012	62.83	62.83	62.83	62.64
388	NASDAQ	VTHR	Fri, Apr 13, 2012	63.46	63.46	62.66	62.67
387	NASDAQ	VTHR	Thu, Apr 12, 2012	63.34	63.40	63.34	63.46
386	NASDAQ	VTHR	Wed, Apr 11, 2012	62.03	62.79	62.03	62.56
385	NASDAQ	VTHR	Tue, Apr 10, 2012	63.18	63.21	61.98	62.02
384	NASDAQ	VTHR	Mon, Apr 9, 2012	63.95	63.95	63.00	63.19
383	NASDAQ	VTHR	Thu, Apr 5, 2012	63.92	63.92	63.92	63.95
382	NASDAQ	VTHR	Wed, Apr 4, 2012	64.70	64.70	63.76	63.98
381	NASDAQ	VTHR	Tue, Apr 3, 2012	64.94	64.96	64.31	64.70
380	NASDAQ	VTHR	Mon, Apr 2, 2012	64.56	65.19	64.44	64.93
379	NASDAQ	VTHR	Fri, Mar 30, 2012	64.23	64.57	64.12	64.43
378	NASDAQ	VTHR	Thu, Mar 29, 2012	64.32	64.32	63.67	64.23
377	NASDAQ	VTHR	Wed, Mar 28, 2012	64.42	64.42	64.09	64.32
376	NASDAQ	VTHR	Tue, Mar 27, 2012	64.89	64.98	64.89	64.64
375	NASDAQ	VTHR	Mon, Mar 26, 2012	64.73	64.82	64.73	64.85
374	NASDAQ	VTHR	Fri, Mar 23, 2012	64.12	64.32	63.94	64.16
373	NASDAQ	VTHR	Thu, Mar 22, 2012	63.95	64.14	63.87	63.91
372	NASDAQ	VTHR	Wed, Mar 21, 2012	64.48	64.48	64.48	64.41
371	NASDAQ	VTHR	Tue, Mar 20, 2012	64.76	64.76	64.17	64.50
370	NASDAQ	VTHR	Mon, Mar 19, 2012	64.63	64.83	64.42	64.75
369	NASDAQ	VTHR	Fri, Mar 16, 2012	64.53	64.53	64.53	64.53
368	NASDAQ	VTHR	Thu, Mar 15, 2012	64.20	64.50	64.10	64.46
367	NASDAQ	VTHR	Wed, Mar 14, 2012	64.21	64.21	64.15	64.02
366	NASDAQ	VTHR	Tue, Mar 13, 2012	63.01	64.17	63.01	64.17
365	NASDAQ	VTHR	Mon, Mar 12, 2012	63.02	63.13	62.80	62.98
364	NASDAQ	VTHR	Fri, Mar 9, 2012	63.23	63.23	63.09	63.02
363	NASDAQ	VTHR	Thu, Mar 8, 2012	62.71	62.86	62.68	62.72
362	NASDAQ	VTHR	Wed, Mar 7, 2012	62.10	62.18	62.10	62.08
361	NASDAQ	VTHR	Tue, Mar 6, 2012	62.61	62.61	61.44	61.59
360	NASDAQ	VTHR	Mon, Mar 5, 2012	62.52	62.52	62.52	62.61
359	NASDAQ	VTHR	Fri, Mar 2, 2012	63.13	63.17	62.69	62.84
358	NASDAQ	VTHR	Thu, Mar 1, 2012	63.03	63.08	63.03	63.12
357	NASDAQ	VTHR	Wed, Feb 29, 2012	63.08	63.37	62.66	62.72
356	NASDAQ	VTHR	Tue, Feb 28, 2012	63.08	63.08	63.08	63.07
355	NASDAQ	VTHR	Mon, Feb 27, 2012	62.57	63.02	62.35	62.92
354	NASDAQ	VTHR	Fri, Feb 24, 2012	62.87	62.95	62.79	62.85
353	NASDAQ	VTHR	Thu, Feb 23, 2012	62.41	62.79	62.17	62.76
352	NASDAQ	VTHR	Wed, Feb 22, 2012	62.49	62.49	62.49	62.40
351	NASDAQ	VTHR	Tue, Feb 21, 2012	62.66	62.92	62.45	62.64
350	NASDAQ	VTHR	Fri, Feb 17, 2012	62.73	62.73	62.63	62.66
349	NASDAQ	VTHR	Thu, Feb 16, 2012	61.81	62.59	61.75	62.56
348	NASDAQ	VTHR	Wed, Feb 15, 2012	62.19	62.21	61.74	61.80
347	NASDAQ	VTHR	Tue, Feb 14, 2012	62.19	62.19	61.68	62.11
346	NASDAQ	VTHR	Mon, Feb 13, 2012	61.70	62.24	61.70	62.18
345	NASDAQ	VTHR	Fri, Feb 10, 2012	61.60	61.74	61.46	61.70
344	NASDAQ	VTHR	Thu, Feb 9, 2012	62.04	62.27	61.98	62.18
343	NASDAQ	VTHR	Wed, Feb 8, 2012	61.98	62.19	61.72	62.10
342	NASDAQ	VTHR	Tue, Feb 7, 2012	61.76	62.06	61.57	61.95
341	NASDAQ	VTHR	Mon, Feb 6, 2012	61.62	61.71	61.62	61.85
340	NASDAQ	VTHR	Fri, Feb 3, 2012	61.50	61.80	61.49	61.89
339	NASDAQ	VTHR	Thu, Feb 2, 2012	61.08	61.08	60.99	60.94
338	NASDAQ	VTHR	Wed, Feb 1, 2012	60.56	60.98	60.56	60.85
337	NASDAQ	VTHR	Tue, Jan 31, 2012	60.21	60.60	59.92	60.18
336	NASDAQ	VTHR	Mon, Jan 30, 2012	59.79	60.15	59.79	60.22
335	NASDAQ	VTHR	Fri, Jan 27, 2012	60.26	60.47	60.24	60.41
334	NASDAQ	VTHR	Thu, Jan 26, 2012	60.93	60.93	60.39	60.41
333	NASDAQ	VTHR	Wed, Jan 25, 2012	60.18	60.78	60.18	60.74
332	NASDAQ	VTHR	Tue, Jan 24, 2012	59.83	60.15	59.83	60.18
331	NASDAQ	VTHR	Mon, Jan 23, 2012	60.16	60.49	59.88	60.17
330	NASDAQ	VTHR	Fri, Jan 20, 2012	60.12	60.16	59.90	60.16
329	NASDAQ	VTHR	Thu, Jan 19, 2012	59.81	60.18	59.81	60.12
328	NASDAQ	VTHR	Wed, Jan 18, 2012	59.25	59.79	59.25	59.81
327	NASDAQ	VTHR	Tue, Jan 17, 2012	59.40	59.42	58.99	59.09
326	NASDAQ	VTHR	Fri, Jan 13, 2012	58.68	58.88	58.54	58.89
325	NASDAQ	VTHR	Thu, Jan 12, 2012	59.05	59.26	58.73	59.21
324	NASDAQ	VTHR	Wed, Jan 11, 2012	58.75	59.08	58.74	59.05
323	NASDAQ	VTHR	Tue, Jan 10, 2012	58.42	59.15	58.42	58.99
322	NASDAQ	VTHR	Mon, Jan 9, 2012	58.26	58.48	58.11	58.42
321	NASDAQ	VTHR	Fri, Jan 6, 2012	58.09	58.38	58.09	58.26
320	NASDAQ	VTHR	Thu, Jan 5, 2012	58.15	58.47	57.58	58.37
319	NASDAQ	VTHR	Wed, Jan 4, 2012	58.18	58.23	57.74	58.15
318	NASDAQ	VTHR	Tue, Jan 3, 2012	57.31	58.56	57.31	58.17
317	NASDAQ	VTHR	Fri, Dec 30, 2011	57.54	57.59	57.29	57.30
316	NASDAQ	VTHR	Thu, Dec 29, 2011	56.91	57.57	56.91	57.54
315	NASDAQ	VTHR	Wed, Dec 28, 2011	57.54	57.54	56.95	56.91
314	NASDAQ	VTHR	Tue, Dec 27, 2011	57.66	57.85	57.50	57.69
313	NASDAQ	VTHR	Fri, Dec 23, 2011	57.50	57.57	57.50	57.66
312	NASDAQ	VTHR	Thu, Dec 22, 2011	56.95	57.50	56.95	57.43
311	NASDAQ	VTHR	Wed, Dec 21, 2011	56.50	56.96	56.36	56.95
310	NASDAQ	VTHR	Tue, Dec 20, 2011	55.12	56.89	55.12	56.83
309	NASDAQ	VTHR	Mon, Dec 19, 2011	55.98	55.98	55.11	55.11
308	NASDAQ	VTHR	Fri, Dec 16, 2011	55.58	56.35	55.58	55.83
307	NASDAQ	VTHR	Thu, Dec 15, 2011	55.34	55.97	55.34	55.58
306	NASDAQ	VTHR	Wed, Dec 14, 2011	55.48	55.73	55.33	55.34
305	NASDAQ	VTHR	Tue, Dec 13, 2011	57.08	57.08	55.99	56.02
304	NASDAQ	VTHR	Mon, Dec 12, 2011	56.16	56.58	56.16	56.60
303	NASDAQ	VTHR	Fri, Dec 9, 2011	57.06	57.53	57.06	57.47
302	NASDAQ	VTHR	Thu, Dec 8, 2011	57.34	57.34	56.31	56.43
301	NASDAQ	VTHR	Wed, Dec 7, 2011	57.64	57.98	56.95	57.72
300	NASDAQ	VTHR	Tue, Dec 6, 2011	57.50	57.84	57.42	57.64
299	NASDAQ	VTHR	Mon, Dec 5, 2011	57.62	57.65	57.27	57.61
298	NASDAQ	VTHR	Fri, Dec 2, 2011	56.96	57.72	56.94	56.99
297	NASDAQ	VTHR	Thu, Dec 1, 2011	57.10	57.31	56.77	56.96
296	NASDAQ	VTHR	Wed, Nov 30, 2011	54.66	57.10	54.66	57.10
295	NASDAQ	VTHR	Tue, Nov 29, 2011	54.81	55.00	54.54	54.65
294	NASDAQ	VTHR	Mon, Nov 28, 2011	52.91	54.75	52.91	54.54
293	NASDAQ	VTHR	Fri, Nov 25, 2011	53.08	53.56	52.90	52.90
292	NASDAQ	VTHR	Wed, Nov 23, 2011	53.40	53.49	53.23	53.07
291	NASDAQ	VTHR	Tue, Nov 22, 2011	54.57	54.74	54.04	54.33
290	NASDAQ	VTHR	Mon, Nov 21, 2011	54.57	54.78	54.32	54.57
289	NASDAQ	VTHR	Fri, Nov 18, 2011	55.72	55.72	55.60	55.62
288	NASDAQ	VTHR	Thu, Nov 17, 2011	56.47	56.50	55.44	55.64
287	NASDAQ	VTHR	Wed, Nov 16, 2011	57.53	57.66	56.54	56.59
286	NASDAQ	VTHR	Tue, Nov 15, 2011	57.47	57.77	57.46	57.53
285	NASDAQ	VTHR	Mon, Nov 14, 2011	57.76	57.76	56.95	57.19
284	NASDAQ	VTHR	Fri, Nov 11, 2011	56.60	57.88	56.60	57.74
283	NASDAQ	VTHR	Thu, Nov 10, 2011	56.15	56.91	56.06	56.60
282	NASDAQ	VTHR	Wed, Nov 9, 2011	58.36	58.36	56.06	56.14
281	NASDAQ	VTHR	Tue, Nov 8, 2011	57.69	58.43	57.34	58.36
280	NASDAQ	VTHR	Mon, Nov 7, 2011	57.37	57.68	56.71	57.65
279	NASDAQ	VTHR	Fri, Nov 4, 2011	57.69	57.69	56.67	57.38
278	NASDAQ	VTHR	Thu, Nov 3, 2011	56.58	57.77	56.39	57.69
277	NASDAQ	VTHR	Wed, Nov 2, 2011	56.14	56.37	56.06	56.57
276	NASDAQ	VTHR	Tue, Nov 1, 2011	57.26	57.26	55.46	55.60
275	NASDAQ	VTHR	Mon, Oct 31, 2011	58.72	58.72	57.26	57.27
274	NASDAQ	VTHR	Fri, Oct 28, 2011	58.72	58.82	58.38	58.71
273	NASDAQ	VTHR	Thu, Oct 27, 2011	56.68	59.09	56.68	58.72
272	NASDAQ	VTHR	Wed, Oct 26, 2011	56.04	56.88	55.65	56.68
271	NASDAQ	VTHR	Tue, Oct 25, 2011	57.25	57.25	55.94	56.04
270	NASDAQ	VTHR	Mon, Oct 24, 2011	56.34	57.33	56.34	57.25
269	NASDAQ	VTHR	Fri, Oct 21, 2011	56.24	56.37	55.78	56.34
268	NASDAQ	VTHR	Thu, Oct 20, 2011	54.89	55.34	54.45	55.27
267	NASDAQ	VTHR	Wed, Oct 19, 2011	55.80	55.98	54.88	55.04
266	NASDAQ	VTHR	Tue, Oct 18, 2011	54.62	56.12	54.16	55.79
265	NASDAQ	VTHR	Mon, Oct 17, 2011	55.79	55.79	54.51	54.62
264	NASDAQ	VTHR	Fri, Oct 14, 2011	55.56	55.68	55.23	55.79
263	NASDAQ	VTHR	Thu, Oct 13, 2011	54.48	54.96	54.32	54.82
262	NASDAQ	VTHR	Wed, Oct 12, 2011	54.70	55.40	54.70	54.94
261	NASDAQ	VTHR	Tue, Oct 11, 2011	54.31	54.53	53.94	54.36
260	NASDAQ	VTHR	Mon, Oct 10, 2011	53.57	54.11	53.57	54.32
259	NASDAQ	VTHR	Fri, Oct 7, 2011	53.08	53.22	52.32	52.47
258	NASDAQ	VTHR	Thu, Oct 6, 2011	51.99	53.04	51.61	53.02
257	NASDAQ	VTHR	Wed, Oct 5, 2011	50.81	52.03	50.66	52.00
256	NASDAQ	VTHR	Tue, Oct 4, 2011	49.71	51.08	48.64	51.04
255	NASDAQ	VTHR	Mon, Oct 3, 2011	51.20	51.20	49.78	49.70
254	NASDAQ	VTHR	Fri, Sep 30, 2011	52.01	52.41	51.36	51.37
253	NASDAQ	VTHR	Thu, Sep 29, 2011	52.27	53.41	51.73	52.70
252	NASDAQ	VTHR	Wed, Sep 28, 2011	53.53	53.91	52.25	52.27
251	NASDAQ	VTHR	Tue, Sep 27, 2011	53.90	54.31	53.23	53.51
250	NASDAQ	VTHR	Mon, Sep 26, 2011	51.66	52.49	51.66	52.87
249	NASDAQ	VTHR	Fri, Sep 23, 2011	51.04	51.81	51.04	51.70
248	NASDAQ	VTHR	Thu, Sep 22, 2011	52.03	52.10	50.97	51.58
247	NASDAQ	VTHR	Wed, Sep 21, 2011	54.75	54.82	53.30	53.33
246	NASDAQ	VTHR	Tue, Sep 20, 2011	55.24	55.67	55.03	54.99
245	NASDAQ	VTHR	Mon, Sep 19, 2011	55.80	55.80	54.49	55.22
244	NASDAQ	VTHR	Fri, Sep 16, 2011	55.60	55.73	55.50	55.80
243	NASDAQ	VTHR	Thu, Sep 15, 2011	54.64	55.53	54.64	55.53
242	NASDAQ	VTHR	Wed, Sep 14, 2011	53.86	55.25	53.40	54.63
241	NASDAQ	VTHR	Tue, Sep 13, 2011	53.30	54.02	53.11	53.86
240	NASDAQ	VTHR	Mon, Sep 12, 2011	52.92	53.28	52.09	53.28
239	NASDAQ	VTHR	Fri, Sep 9, 2011	53.86	53.86	52.73	52.92
238	NASDAQ	VTHR	Thu, Sep 8, 2011	55.03	55.29	54.26	54.39
237	NASDAQ	VTHR	Wed, Sep 7, 2011	54.39	54.99	54.35	55.03
236	NASDAQ	VTHR	Tue, Sep 6, 2011	52.19	53.37	52.19	53.38
235	NASDAQ	VTHR	Fri, Sep 2, 2011	54.12	54.32	53.77	53.76
234	NASDAQ	VTHR	Thu, Sep 1, 2011	55.99	56.47	55.26	55.23
233	NASDAQ	VTHR	Wed, Aug 31, 2011	55.74	56.56	55.53	55.97
232	NASDAQ	VTHR	Tue, Aug 30, 2011	55.57	56.05	54.90	55.73
231	NASDAQ	VTHR	Mon, Aug 29, 2011	53.89	55.56	53.89	55.55
230	NASDAQ	VTHR	Fri, Aug 26, 2011	52.46	53.88	52.32	53.88
229	NASDAQ	VTHR	Thu, Aug 25, 2011	53.37	53.37	52.89	52.96
228	NASDAQ	VTHR	Wed, Aug 24, 2011	53.18	53.93	52.86	53.88
227	NASDAQ	VTHR	Tue, Aug 23, 2011	51.33	53.17	51.27	53.17
226	NASDAQ	VTHR	Mon, Aug 22, 2011	51.33	52.36	51.20	51.33
225	NASDAQ	VTHR	Fri, Aug 19, 2011	52.15	52.82	51.28	51.34
224	NASDAQ	VTHR	Thu, Aug 18, 2011	54.71	54.71	51.74	52.14
223	NASDAQ	VTHR	Wed, Aug 17, 2011	55.36	55.42	54.39	54.71
222	NASDAQ	VTHR	Tue, Aug 16, 2011	55.31	55.31	54.15	54.70
221	NASDAQ	VTHR	Mon, Aug 15, 2011	54.44	55.01	54.44	55.30
220	NASDAQ	VTHR	Fri, Aug 12, 2011	54.27	54.56	53.72	54.05
219	NASDAQ	VTHR	Thu, Aug 11, 2011	51.95	54.24	51.95	53.78
218	NASDAQ	VTHR	Wed, Aug 10, 2011	53.64	53.64	51.21	51.32
217	NASDAQ	VTHR	Tue, Aug 9, 2011	51.02	53.64	50.29	53.63
216	NASDAQ	VTHR	Mon, Aug 8, 2011	53.46	53.63	51.15	51.02
215	NASDAQ	VTHR	Fri, Aug 5, 2011	55.08	55.87	53.45	54.87
214	NASDAQ	VTHR	Thu, Aug 4, 2011	58.02	58.02	55.08	55.08
213	NASDAQ	VTHR	Wed, Aug 3, 2011	57.71	58.05	56.73	58.02
212	NASDAQ	VTHR	Tue, Aug 2, 2011	59.28	59.28	57.69	57.69
211	NASDAQ	VTHR	Mon, Aug 1, 2011	59.54	60.25	58.74	59.29
210	NASDAQ	VTHR	Fri, Jul 29, 2011	59.88	60.04	58.99	59.54
209	NASDAQ	VTHR	Thu, Jul 28, 2011	60.06	60.62	59.81	59.87
208	NASDAQ	VTHR	Wed, Jul 27, 2011	61.40	61.40	60.00	60.06
207	NASDAQ	VTHR	Tue, Jul 26, 2011	61.68	61.71	61.30	61.40
206	NASDAQ	VTHR	Mon, Jul 25, 2011	62.09	62.09	61.43	61.68
205	NASDAQ	VTHR	Fri, Jul 22, 2011	62.01	62.15	61.71	62.09
204	NASDAQ	VTHR	Thu, Jul 21, 2011	61.22	62.14	61.22	62.01
203	NASDAQ	VTHR	Wed, Jul 20, 2011	61.27	61.43	61.08	61.21
202	NASDAQ	VTHR	Tue, Jul 19, 2011	60.23	61.31	60.23	61.26
201	NASDAQ	VTHR	Mon, Jul 18, 2011	60.80	60.80	59.81	60.23
200	NASDAQ	VTHR	Fri, Jul 15, 2011	60.44	60.85	60.40	60.80
199	NASDAQ	VTHR	Thu, Jul 14, 2011	60.93	61.35	60.33	60.44
198	NASDAQ	VTHR	Wed, Jul 13, 2011	60.71	61.57	60.71	60.93
197	NASDAQ	VTHR	Tue, Jul 12, 2011	60.97	61.30	60.68	60.70
196	NASDAQ	VTHR	Mon, Jul 11, 2011	62.16	62.16	60.83	60.97
195	NASDAQ	VTHR	Fri, Jul 8, 2011	62.58	62.58	61.67	62.16
194	NASDAQ	VTHR	Thu, Jul 7, 2011	61.91	62.73	61.91	62.58
193	NASDAQ	VTHR	Wed, Jul 6, 2011	61.81	61.98	61.49	61.91
192	NASDAQ	VTHR	Tue, Jul 5, 2011	61.83	61.92	61.59	61.79
191	NASDAQ	VTHR	Fri, Jul 1, 2011	61.01	61.89	60.83	61.83
190	NASDAQ	VTHR	Thu, Jun 30, 2011	60.59	60.88	60.59	60.94
189	NASDAQ	VTHR	Wed, Jun 29, 2011	59.87	60.44	59.87	60.34
188	NASDAQ	VTHR	Tue, Jun 28, 2011	59.07	59.86	59.07	59.86
187	NASDAQ	VTHR	Mon, Jun 27, 2011	58.87	59.08	58.85	59.05
186	NASDAQ	VTHR	Fri, Jun 24, 2011	59.20	59.24	58.49	58.55
185	NASDAQ	VTHR	Thu, Jun 23, 2011	59.50	59.50	58.39	59.38
184	NASDAQ	VTHR	Wed, Jun 22, 2011	59.88	60.04	59.49	59.50
183	NASDAQ	VTHR	Tue, Jun 21, 2011	59.01	59.95	59.01	59.88
182	NASDAQ	VTHR	Mon, Jun 20, 2011	58.66	59.10	58.48	59.00
181	NASDAQ	VTHR	Fri, Jun 17, 2011	58.51	59.06	58.47	58.66
180	NASDAQ	VTHR	Thu, Jun 16, 2011	58.44	58.83	58.05	58.51
179	NASDAQ	VTHR	Wed, Jun 15, 2011	59.46	59.46	58.28	58.44
178	NASDAQ	VTHR	Tue, Jun 14, 2011	58.64	59.65	58.64	59.45
177	NASDAQ	VTHR	Mon, Jun 13, 2011	58.66	58.96	58.36	58.64
176	NASDAQ	VTHR	Fri, Jun 10, 2011	58.93	58.93	58.54	58.64
175	NASDAQ	VTHR	Thu, Jun 9, 2011	59.09	59.75	59.09	59.50
174	NASDAQ	VTHR	Wed, Jun 8, 2011	59.40	59.46	59.00	59.08
173	NASDAQ	VTHR	Tue, Jun 7, 2011	59.40	59.89	59.39	59.39
172	NASDAQ	VTHR	Mon, Jun 6, 2011	60.10	60.10	59.36	59.40
171	NASDAQ	VTHR	Fri, Jun 3, 2011	60.73	60.73	60.00	60.10
170	NASDAQ	VTHR	Thu, Jun 2, 2011	60.79	60.99	60.40	60.73
169	NASDAQ	VTHR	Wed, Jun 1, 2011	61.85	61.85	61.07	60.79
168	NASDAQ	VTHR	Tue, May 31, 2011	62.23	62.23	62.01	62.25
167	NASDAQ	VTHR	Fri, May 27, 2011	61.70	61.76	61.55	61.59
166	NASDAQ	VTHR	Thu, May 26, 2011	60.88	61.28	60.77	61.30
165	NASDAQ	VTHR	Wed, May 25, 2011	60.70	61.20	60.50	60.98
164	NASDAQ	VTHR	Tue, May 24, 2011	60.77	61.08	60.58	60.70
163	NASDAQ	VTHR	Mon, May 23, 2011	61.56	61.56	60.60	60.77
162	NASDAQ	VTHR	Fri, May 20, 2011	61.61	61.90	61.61	61.84
161	NASDAQ	VTHR	Thu, May 19, 2011	62.14	62.14	61.81	61.99
160	NASDAQ	VTHR	Tue, May 17, 2011	60.94	60.97	60.93	60.93
159	NASDAQ	VTHR	Thu, May 12, 2011	62.31	62.31	62.31	62.31
158	NASDAQ	VTHR	Wed, May 11, 2011	62.54	62.52	62.00	62.00
157	NASDAQ	VTHR	Tue, May 10, 2011	62.51	62.51	62.51	62.51
156	NASDAQ	VTHR	Mon, May 9, 2011	61.86	62.22	61.84	62.16
155	NASDAQ	VTHR	Fri, May 6, 2011	62.17	62.41	61.82	61.82
154	NASDAQ	VTHR	Thu, May 5, 2011	61.71	61.75	61.71	61.75
153	NASDAQ	VTHR	Wed, May 4, 2011	62.21	62.21	61.86	62.05
152	NASDAQ	VTHR	Tue, May 3, 2011	62.66	62.66	62.28	62.28
151	NASDAQ	VTHR	Mon, May 2, 2011	63.31	63.31	62.84	62.84
150	NASDAQ	VTHR	Fri, Apr 29, 2011	62.84	62.98	62.91	62.97
149	NASDAQ	VTHR	Thu, Apr 28, 2011	62.51	62.83	62.63	62.83
148	NASDAQ	VTHR	Wed, Apr 27, 2011	62.28	62.38	62.15	62.38
147	NASDAQ	VTHR	Tue, Apr 26, 2011	61.84	61.89	61.84	61.89
146	NASDAQ	VTHR	Mon, Apr 25, 2011	61.66	61.66	61.59	61.59
145	NASDAQ	VTHR	Thu, Apr 21, 2011	61.68	61.68	61.65	61.65
144	NASDAQ	VTHR	Wed, Apr 20, 2011	61.31	61.31	61.31	61.31
143	NASDAQ	VTHR	Tue, Apr 19, 2011	60.26	60.48	60.26	60.48
142	NASDAQ	VTHR	Mon, Apr 18, 2011	60.24	60.16	59.88	60.16
141	NASDAQ	VTHR	Fri, Apr 15, 2011	60.68	60.92	60.68	60.87
140	NASDAQ	VTHR	Thu, Apr 14, 2011	60.11	60.65	60.11	60.65
139	NASDAQ	VTHR	Tue, Apr 12, 2011	60.63	60.63	60.38	60.38
138	NASDAQ	VTHR	Mon, Apr 11, 2011	61.39	61.40	61.03	61.03
137	NASDAQ	VTHR	Fri, Apr 8, 2011	61.56	61.56	61.05	61.05
136	NASDAQ	VTHR	Thu, Apr 7, 2011	61.56	61.56	61.56	61.56
135	NASDAQ	VTHR	Wed, Apr 6, 2011	61.83	61.83	61.48	61.63
134	NASDAQ	VTHR	Tue, Apr 5, 2011	61.62	61.62	61.62	61.62
133	NASDAQ	VTHR	Mon, Apr 4, 2011	61.45	61.45	61.42	61.42
132	NASDAQ	VTHR	Thu, Mar 31, 2011	61.18	61.28	61.23	61.28
131	NASDAQ	VTHR	Wed, Mar 30, 2011	61.03	61.32	61.02	61.31
130	NASDAQ	VTHR	Tue, Mar 29, 2011	60.47	60.60	60.47	60.58
129	NASDAQ	VTHR	Fri, Mar 25, 2011	60.66	60.66	60.59	60.60
128	NASDAQ	VTHR	Thu, Mar 24, 2011	60.21	60.48	60.18	60.46
127	NASDAQ	VTHR	Wed, Mar 23, 2011	59.70	59.95	59.67	59.82
126	NASDAQ	VTHR	Tue, Mar 22, 2011	59.89	59.95	59.60	59.65
125	NASDAQ	VTHR	Mon, Mar 21, 2011	59.71	59.96	59.70	59.88
124	NASDAQ	VTHR	Fri, Mar 18, 2011	58.65	59.33	58.65	58.94
123	NASDAQ	VTHR	Thu, Mar 17, 2011	57.96	58.94	57.96	58.65
122	NASDAQ	VTHR	Wed, Mar 16, 2011	59.02	59.05	57.21	57.96
121	NASDAQ	VTHR	Tue, Mar 15, 2011	59.65	59.65	58.01	59.02
120	NASDAQ	VTHR	Mon, Mar 14, 2011	59.77	59.80	59.56	59.65
119	NASDAQ	VTHR	Fri, Mar 11, 2011	59.61	60.13	59.58	60.00
118	NASDAQ	VTHR	Thu, Mar 10, 2011	60.76	60.76	59.55	59.58
117	NASDAQ	VTHR	Wed, Mar 9, 2011	60.87	60.94	60.43	60.76
116	NASDAQ	VTHR	Tue, Mar 8, 2011	60.30	61.05	60.12	60.86
115	NASDAQ	VTHR	Mon, Mar 7, 2011	60.86	61.15	59.98	60.29
114	NASDAQ	VTHR	Fri, Mar 4, 2011	61.29	61.30	60.47	60.86
113	NASDAQ	VTHR	Thu, Mar 3, 2011	60.21	61.35	60.21	61.29
112	NASDAQ	VTHR	Wed, Mar 2, 2011	60.08	60.48	59.92	60.21
111	NASDAQ	VTHR	Tue, Mar 1, 2011	61.06	61.27	60.04	60.07
110	NASDAQ	VTHR	Mon, Feb 28, 2011	60.76	61.19	60.74	61.06
109	NASDAQ	VTHR	Fri, Feb 25, 2011	60.01	60.77	60.01	60.77
108	NASDAQ	VTHR	Thu, Feb 24, 2011	60.01	60.24	59.45	60.00
107	NASDAQ	VTHR	Wed, Feb 23, 2011	60.46	60.58	59.62	60.00
106	NASDAQ	VTHR	Tue, Feb 22, 2011	61.79	61.79	60.33	60.46
105	NASDAQ	VTHR	Fri, Feb 18, 2011	61.70	61.86	61.57	61.79
104	NASDAQ	VTHR	Thu, Feb 17, 2011	61.43	61.75	61.43	61.70
103	NASDAQ	VTHR	Wed, Feb 16, 2011	61.07	61.54	61.07	61.49
102	NASDAQ	VTHR	Tue, Feb 15, 2011	61.30	61.30	60.94	61.06
101	NASDAQ	VTHR	Mon, Feb 14, 2011	61.17	61.34	61.08	61.28
100	NASDAQ	VTHR	Fri, Feb 11, 2011	60.71	61.15	60.46	61.09
99	NASDAQ	VTHR	Thu, Feb 10, 2011	60.33	60.66	60.33	60.70
98	NASDAQ	VTHR	Wed, Feb 9, 2011	60.70	60.70	60.56	60.61
97	NASDAQ	VTHR	Tue, Feb 8, 2011	60.53	60.80	60.38	60.79
96	NASDAQ	VTHR	Mon, Feb 7, 2011	60.26	60.64	60.26	60.51
95	NASDAQ	VTHR	Fri, Feb 4, 2011	59.94	60.12	59.70	60.11
94	NASDAQ	VTHR	Thu, Feb 3, 2011	59.79	60.00	59.35	59.94
93	NASDAQ	VTHR	Wed, Feb 2, 2011	59.94	59.97	59.71	59.78
92	NASDAQ	VTHR	Tue, Feb 1, 2011	58.92	59.98	58.92	59.93
91	NASDAQ	VTHR	Mon, Jan 31, 2011	58.71	59.04	58.69	58.93
90	NASDAQ	VTHR	Fri, Jan 28, 2011	59.57	59.70	58.42	58.48
89	NASDAQ	VTHR	Thu, Jan 27, 2011	59.41	59.65	59.30	59.56
88	NASDAQ	VTHR	Wed, Jan 26, 2011	59.06	59.54	59.06	59.42
87	NASDAQ	VTHR	Tue, Jan 25, 2011	58.84	59.02	58.77	59.06
86	NASDAQ	VTHR	Mon, Jan 24, 2011	58.66	59.10	58.63	59.04
85	NASDAQ	VTHR	Fri, Jan 21, 2011	58.59	59.07	58.59	58.66
84	NASDAQ	VTHR	Thu, Jan 20, 2011	58.39	58.39	58.39	58.59
83	NASDAQ	VTHR	Wed, Jan 19, 2011	59.47	59.47	58.62	58.75
82	NASDAQ	VTHR	Tue, Jan 18, 2011	59.34	59.47	59.21	59.46
81	NASDAQ	VTHR	Fri, Jan 14, 2011	58.91	59.34	58.79	59.34
80	NASDAQ	VTHR	Thu, Jan 13, 2011	59.00	59.05	58.76	58.91
79	NASDAQ	VTHR	Wed, Jan 12, 2011	58.49	59.03	58.49	58.99
78	NASDAQ	VTHR	Tue, Jan 11, 2011	58.25	58.60	58.25	58.48
77	NASDAQ	VTHR	Mon, Jan 10, 2011	58.30	58.30	58.29	58.25
76	NASDAQ	VTHR	Fri, Jan 7, 2011	58.38	58.56	57.78	58.27
75	NASDAQ	VTHR	Thu, Jan 6, 2011	58.51	58.51	58.34	58.38
74	NASDAQ	VTHR	Wed, Jan 5, 2011	58.05	58.47	57.99	58.49
73	NASDAQ	VTHR	Tue, Jan 4, 2011	58.34	58.45	57.78	58.15
72	NASDAQ	VTHR	Mon, Jan 3, 2011	57.66	58.55	57.66	58.35
71	NASDAQ	VTHR	Fri, Dec 31, 2010	57.72	57.78	57.56	57.66
70	NASDAQ	VTHR	Thu, Dec 30, 2010	57.79	57.88	57.68	57.72
69	NASDAQ	VTHR	Wed, Dec 29, 2010	57.70	57.90	57.70	57.79
68	NASDAQ	VTHR	Tue, Dec 28, 2010	57.68	57.77	57.58	57.69
67	NASDAQ	VTHR	Mon, Dec 27, 2010	57.40	57.67	57.40	57.96
66	NASDAQ	VTHR	Thu, Dec 23, 2010	58.00	58.02	57.80	57.90
65	NASDAQ	VTHR	Wed, Dec 22, 2010	57.83	58.05	57.83	58.00
64	NASDAQ	VTHR	Tue, Dec 21, 2010	57.44	57.87	57.44	57.82
63	NASDAQ	VTHR	Mon, Dec 20, 2010	57.29	57.59	57.18	57.44
62	NASDAQ	VTHR	Fri, Dec 17, 2010	57.20	57.37	57.08	57.29
61	NASDAQ	VTHR	Thu, Dec 16, 2010	56.91	57.18	56.86	57.20
60	NASDAQ	VTHR	Wed, Dec 15, 2010	57.09	57.27	56.75	56.80
59	NASDAQ	VTHR	Tue, Dec 14, 2010	57.15	57.22	56.98	57.09
58	NASDAQ	VTHR	Mon, Dec 13, 2010	57.16	57.32	57.04	57.04
57	NASDAQ	VTHR	Fri, Dec 10, 2010	56.79	57.10	56.69	57.09
56	NASDAQ	VTHR	Thu, Dec 9, 2010	56.49	56.78	56.43	56.70
55	NASDAQ	VTHR	Wed, Dec 8, 2010	56.34	56.58	56.14	56.49
54	NASDAQ	VTHR	Tue, Dec 7, 2010	56.30	56.85	56.30	56.34
53	NASDAQ	VTHR	Mon, Dec 6, 2010	56.33	56.42	56.15	56.30
52	NASDAQ	VTHR	Fri, Dec 3, 2010	56.13	56.37	55.90	56.33
51	NASDAQ	VTHR	Thu, Dec 2, 2010	55.43	56.13	55.43	56.12
50	NASDAQ	VTHR	Wed, Dec 1, 2010	54.27	55.50	54.27	55.43
49	NASDAQ	VTHR	Tue, Nov 30, 2010	54.60	54.60	53.97	54.26
48	NASDAQ	VTHR	Mon, Nov 29, 2010	54.11	54.65	54.00	54.60
47	NASDAQ	VTHR	Fri, Nov 26, 2010	54.54	54.84	54.54	54.66
46	NASDAQ	VTHR	Wed, Nov 24, 2010	54.68	55.02	54.65	55.05
45	NASDAQ	VTHR	Tue, Nov 23, 2010	54.92	54.92	53.98	54.17
44	NASDAQ	VTHR	Mon, Nov 22, 2010	54.94	54.95	54.32	54.92
43	NASDAQ	VTHR	Fri, Nov 19, 2010	54.76	54.95	54.43	54.93
42	NASDAQ	VTHR	Thu, Nov 18, 2010	54.55	54.90	54.55	54.77
41	NASDAQ	VTHR	Wed, Nov 17, 2010	53.87	54.13	53.77	53.92
40	NASDAQ	VTHR	Tue, Nov 16, 2010	54.77	54.77	53.61	53.86
39	NASDAQ	VTHR	Mon, Nov 15, 2010	54.80	55.21	54.74	54.76
38	NASDAQ	VTHR	Fri, Nov 12, 2010	55.51	55.51	54.60	54.81
37	NASDAQ	VTHR	Thu, Nov 11, 2010	55.72	55.72	55.06	55.51
36	NASDAQ	VTHR	Wed, Nov 10, 2010	55.42	55.72	55.01	55.72
35	NASDAQ	VTHR	Tue, Nov 9, 2010	55.88	56.06	55.19	55.40
34	NASDAQ	VTHR	Mon, Nov 8, 2010	55.97	55.97	55.59	55.87
33	NASDAQ	VTHR	Fri, Nov 5, 2010	55.73	56.02	55.70	55.96
32	NASDAQ	VTHR	Thu, Nov 4, 2010	55.36	55.55	55.33	55.73
31	NASDAQ	VTHR	Wed, Nov 3, 2010	54.47	54.67	54.01	54.65
30	NASDAQ	VTHR	Tue, Nov 2, 2010	53.98	54.54	53.98	54.46
29	NASDAQ	VTHR	Mon, Nov 1, 2010	54.09	54.15	53.72	53.98
28	NASDAQ	VTHR	Fri, Oct 29, 2010	53.94	54.06	53.80	53.97
27	NASDAQ	VTHR	Thu, Oct 28, 2010	54.26	54.31	53.78	53.94
26	NASDAQ	VTHR	Wed, Oct 27, 2010	54.04	54.04	53.41	53.91
25	NASDAQ	VTHR	Tue, Oct 26, 2010	53.72	54.11	53.72	54.03
24	NASDAQ	VTHR	Mon, Oct 25, 2010	54.31	54.31	54.31	54.03
23	NASDAQ	VTHR	Fri, Oct 22, 2010	53.84	53.84	53.81	53.88
22	NASDAQ	VTHR	Thu, Oct 21, 2010	53.68	53.68	53.45	53.70
21	NASDAQ	VTHR	Wed, Oct 20, 2010	53.08	53.86	53.08	53.66
20	NASDAQ	VTHR	Tue, Oct 19, 2010	53.96	53.96	52.78	53.06
19	NASDAQ	VTHR	Mon, Oct 18, 2010	53.59	53.98	53.52	53.96
18	NASDAQ	VTHR	Fri, Oct 15, 2010	53.50	53.86	53.20	53.60
17	NASDAQ	VTHR	Thu, Oct 14, 2010	53.75	53.76	53.40	53.51
16	NASDAQ	VTHR	Wed, Oct 13, 2010	53.28	53.97	53.28	53.69
15	NASDAQ	VTHR	Tue, Oct 12, 2010	53.07	53.39	52.61	53.28
14	NASDAQ	VTHR	Mon, Oct 11, 2010	53.14	53.20	53.06	53.07
13	NASDAQ	VTHR	Fri, Oct 8, 2010	52.68	53.18	52.57	53.05
12	NASDAQ	VTHR	Thu, Oct 7, 2010	52.75	52.94	52.37	52.67
11	NASDAQ	VTHR	Wed, Oct 6, 2010	52.84	52.90	52.52	52.75
10	NASDAQ	VTHR	Tue, Oct 5, 2010	51.72	52.91	51.72	52.82
9	NASDAQ	VTHR	Mon, Oct 4, 2010	52.17	52.25	51.48	51.72
8	NASDAQ	VTHR	Fri, Oct 1, 2010	51.94	52.35	51.85	52.17
7	NASDAQ	VTHR	Thu, Sep 30, 2010	52.36	52.36	52.36	51.94
6	NASDAQ	VTHR	Wed, Sep 29, 2010	52.20	52.20	52.00	52.08
5	NASDAQ	VTHR	Tue, Sep 28, 2010	51.87	52.25	51.40	52.16
4	NASDAQ	VTHR	Mon, Sep 27, 2010	52.13	52.19	51.85	51.86
3	NASDAQ	VTHR	Fri, Sep 24, 2010	51.97	52.04	51.97	52.13
2	NASDAQ	VTHR	Thu, Sep 23, 2010	51.41	51.55	50.89	50.98
1	NASDAQ	VTHR	Wed, Sep 22, 2010	51.92	51.92	51.34	51.42
#	Exchange	Symbol	Date	Open	High	Low	Close

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