Historical Prices for Costar Group (CSGP)

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Historical Data for CoStar Group Inc. (CSGP)

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Date	Open	High	Low	Close	Volume	Change	Change %
1/8/09	34.40	36.42	34.39	35.93	270,585	1.31	3.78%
1/7/09	33.99	35.27	33.53	34.62	211,343	0.14	0.41%
1/6/09	33.60	35.02	33.40	34.48	180,762	1.25	3.76%
1/5/09	33.62	33.73	32.70	33.23	152,949	-0.28	-0.84%
1/2/09	33.00	33.66	32.36	33.51	171,996	0.57	1.73%
12/31/08	32.29	33.45	32.27	32.94	113,848	0.58	1.79%
12/30/08	30.96	32.41	30.96	32.36	180,980	1.70	5.54%
12/29/08	30.70	30.86	30.40	30.66	91,157	-0.04	-0.13%
12/26/08	30.87	31.31	30.26	30.70	37,026	0.01	0.03%
12/24/08	31.58	31.58	30.59	30.69	55,790	-0.79	-2.51%
12/23/08	31.33	31.744	30.60	31.48	131,997	0.31	0.99%
12/22/08	32.99	33.14	30.22	31.17	114,230	-1.83	-5.55%
12/19/08	34.41	34.62	32.21	33.00	194,146	0.47	1.44%
12/18/08	31.38	33.29	31.35	32.53	205,739	0.62	1.94%
12/17/08	30.50	32.298	29.97	31.91	282,417	1.16	3.77%
12/16/08	30.28	30.94	29.755	30.75	211,808	0.96	3.22%
12/15/08	31.11	31.50	29.49	29.79	161,943	-1.02	-3.31%
12/12/08	29.72	30.87	29.14	30.81	89,615	0.59	1.95%
12/11/08	31.17	32.45	29.90	30.22	131,204	-1.43	-4.52%
12/10/08	31.26	32.17	30.035	31.65	140,338	0.83	2.69%
12/9/08	30.64	31.88	30.46	30.82	236,685	-0.06	-0.19%
12/8/08	30.08	31.13	30.04	30.88	290,002	1.63	5.57%
12/5/08	28.13	29.54	27.67	29.25	281,983	0.60	2.09%
12/4/08	28.58	29.80	27.97	28.65	317,334	-0.34	-1.17%
12/3/08	27.61	29.66	27.61	28.99	360,730	0.67	2.37%
12/2/08	29.36	30.13	27.28	28.32	384,749	-0.52	-1.80%
12/1/08	31.41	32.53	28.63	28.84	280,955	-3.78	-11.59%
11/28/08	32.55	33.52	31.275	32.62	68,511	-0.22	-0.67%
11/26/08	31.16	33.33	30.75	32.84	245,698	0.89	2.79%
11/25/08	31.64	32.56	30.22	31.95	305,215	0.44	1.40%
11/24/08	29.07	32.30	29.07	31.51	338,154	2.77	9.64%
11/21/08	27.58	28.74	25.80	28.74	375,904	1.74	6.44%
11/20/08	26.90	28.62	26.39	27.00	438,233	-0.01	-0.04%
11/19/08	30.39	30.39	25.43	27.01	1,404,626	-3.76	-12.22%
11/18/08	30.35	31.66	29.52	30.77	1,095,761	0.45	1.48%
11/17/08	29.71	31.03	29.01	30.32	633,622	0.29	0.97%
11/14/08	30.67	31.20	29.99	30.03	305,047	-1.12	-3.60%
11/13/08	29.32	31.49	28.53	31.15	373,228	1.89	6.46%
11/12/08	29.91	31.00	29.04	29.26	553,628	-1.17	-3.84%
11/11/08	31.99	33.50	29.92	30.43	368,215	-1.65	-5.14%
11/10/08	36.63	36.725	31.46	32.08	303,630	-3.62	-10.14%
11/7/08	36.49	37.70	35.00	35.70	128,664	-0.41	-1.14%
11/6/08	35.94	38.96	35.40	36.11	575,550	-0.06	-0.17%
11/5/08	35.98	37.43	35.95	36.17	301,330	-0.18	-0.50%
11/4/08	37.38	37.43	35.53	36.35	96,007	-0.08	-0.22%
11/3/08	35.99	37.46	35.99	36.43	269,055	0.41	1.14%
10/31/08	31.95	36.43	31.43	36.02	492,740	3.24	9.88%
10/30/08	30.86	37.05	30.86	32.78	411,187	3.17	10.71%
10/29/08	29.80	29.80	27.71	29.61	590,602	0.37	1.27%
10/28/08	29.35	30.89	28.41	29.24	589,131	0.31	1.07%
10/27/08	30.59	32.17	28.91	28.93	421,680	-1.96	-6.35%
10/24/08	30.93	32.68	30.44	30.89	397,387	-1.54	-4.75%
10/23/08	36.11	37.05	31.78	32.43	399,197	-3.60	-9.99%
10/22/08	36.52	37.77	35.53	36.03	130,126	-1.43	-3.82%
10/21/08	38.03	39.62	37.26	37.46	172,047	-1.33	-3.43%
10/20/08	37.97	38.80	36.25	38.79	84,253	1.79	4.84%
10/17/08	35.66	38.31	35.63	37.00	250,487	-0.02	-0.05%
10/16/08	38.54	40.00	35.15	37.02	418,725	-1.28	-3.34%
10/15/08	39.50	40.59	38.01	38.30	267,744	-2.39	-5.87%
10/14/08	45.00	45.89	40.41	40.69	278,967	-3.73	-8.40%
10/13/08	45.70	45.70	43.14	44.42	334,671	3.13	7.58%
10/10/08	39.13	42.88	39.01	41.29	605,743	1.26	3.15%