CoStar Group Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Aug 6, 2026	30.02	30.15	29.90	29.90	-	-1.03%	128,514
Aug 5, 2026	30.61	30.75	29.53	30.21	30.21	1.32%	6,565,259
Aug 4, 2026	29.42	30.07	29.35	29.82	29.82	-0.72%	5,484,319
Aug 3, 2026	29.47	30.18	29.26	30.03	30.03	4.42%	5,677,317
Jul 31, 2026	29.02	29.38	28.38	28.76	28.76	-2.38%	7,319,162
Jul 30, 2026	28.27	29.57	28.13	29.46	29.46	-1.24%	12,021,494
Jul 29, 2026	26.03	30.45	25.89	29.83	29.83	-1.65%	17,503,924
Jul 28, 2026	29.90	31.40	29.75	30.33	30.33	3.98%	8,952,138
Jul 27, 2026	28.05	29.92	28.04	29.17	29.17	5.46%	8,663,649
Jul 24, 2026	27.28	28.09	27.09	27.66	27.66	1.92%	6,844,187
Jul 23, 2026	27.89	28.03	26.77	27.14	27.14	-1.99%	7,123,553
Jul 22, 2026	28.76	28.92	27.48	27.69	27.69	-2.84%	5,635,364
Jul 21, 2026	28.63	29.39	28.34	28.50	28.50	-3.98%	5,411,087
Jul 20, 2026	29.50	29.90	28.85	29.68	29.68	-0.34%	6,351,902
Jul 17, 2026	30.64	31.01	29.59	29.78	29.78	-1.94%	5,898,191
Jul 16, 2026	29.07	30.52	28.96	30.37	30.37	6.60%	8,871,084
Jul 15, 2026	28.04	29.25	27.96	28.49	28.49	2.93%	7,339,723
Jul 14, 2026	27.00	28.00	26.68	27.68	27.68	-3.79%	14,035,971
Jul 13, 2026	28.88	29.38	28.22	28.77	28.77	1.34%	6,424,023
Jul 10, 2026	29.67	30.05	28.09	28.39	28.39	-2.74%	5,874,632
Jul 9, 2026	28.86	29.35	28.44	29.19	29.19	-0.51%	4,954,401
Jul 8, 2026	29.66	29.82	29.02	29.34	29.34	-1.77%	5,100,821
Jul 7, 2026	29.67	30.14	29.19	29.87	29.87	4.08%	5,976,935
Jul 6, 2026	29.68	29.83	28.54	28.70	28.70	-4.33%	6,712,445
Jul 2, 2026	29.56	30.42	29.22	30.00	30.00	2.18%	4,735,814
Jul 1, 2026	29.08	30.02	28.77	29.36	29.36	3.67%	6,235,117
Jun 30, 2026	29.03	29.26	28.18	28.32	28.32	-3.41%	6,930,114
Jun 29, 2026	30.61	30.71	29.20	29.32	29.32	-3.07%	5,599,634
Jun 26, 2026	28.90	30.52	28.84	30.25	30.25	5.62%	8,813,804
Jun 25, 2026	29.31	29.68	28.54	28.64	28.64	-3.92%	6,449,973
Jun 24, 2026	29.89	30.89	29.76	29.81	29.81	-1.49%	6,675,165
Jun 23, 2026	29.73	30.60	29.73	30.26	30.26	3.56%	8,313,803
Jun 22, 2026	30.05	31.04	29.08	29.22	29.22	-2.99%	7,025,719
Jun 18, 2026	30.46	30.73	29.53	30.12	30.12	-1.12%	16,140,782
Jun 17, 2026	31.80	32.56	30.38	30.46	30.46	-4.72%	9,729,243
Jun 16, 2026	32.01	32.72	31.64	31.97	31.97	-0.22%	5,749,256
Jun 15, 2026	32.68	34.08	31.91	32.04	32.04	-2.44%	6,018,636
Jun 12, 2026	32.57	33.19	31.63	32.84	32.84	0.58%	4,914,879
Jun 11, 2026	33.53	34.06	32.33	32.65	32.65	-4.62%	7,751,595
Jun 10, 2026	33.58	34.77	33.16	34.23	34.23	0.88%	6,276,093
Jun 9, 2026	33.05	34.20	32.85	33.93	33.93	1.62%	6,634,971
Jun 8, 2026	33.31	34.04	32.68	33.39	33.39	-1.48%	7,712,673
Jun 5, 2026	33.93	34.27	33.06	33.89	33.89	0.68%	6,998,718
Jun 4, 2026	34.66	34.82	33.13	33.66	33.66	0.78%	7,347,869
Jun 3, 2026	33.51	33.52	32.05	33.40	33.40	-0.77%	9,461,251
Jun 2, 2026	33.08	33.76	31.70	33.66	33.66	-0.59%	9,188,531
Jun 1, 2026	32.62	33.88	32.01	33.86	33.86	5.16%	8,038,388
May 29, 2026	32.65	32.94	31.86	32.20	32.20	-0.31%	7,789,020
May 28, 2026	32.24	32.90	32.00	32.30	32.30	-0.06%	6,749,441
May 27, 2026	32.59	33.48	32.21	32.32	32.32	-0.62%	5,017,978