CoStar Group Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jan 14, 2026	61.42	63.26	61.14	62.25	-	0.70%	3,003,588
Jan 13, 2026	58.91	62.52	58.14	61.82	61.82	4.25%	12,625,316
Jan 12, 2026	58.49	59.44	57.01	59.30	59.30	1.38%	8,841,065
Jan 9, 2026	61.36	61.83	58.41	58.49	58.49	-4.68%	7,688,177
Jan 8, 2026	60.61	62.89	60.19	61.36	61.36	-0.49%	8,172,000
Jan 7, 2026	68.26	68.98	61.57	61.66	61.66	-8.24%	13,754,403
Jan 6, 2026	66.02	67.64	65.23	67.20	67.20	1.17%	3,143,172
Jan 5, 2026	65.60	67.38	65.22	66.42	66.42	1.11%	4,179,397
Jan 2, 2026	67.11	67.22	65.23	65.69	65.69	-2.31%	4,366,582
Dec 31, 2025	67.86	67.86	67.00	67.24	67.24	-0.91%	1,949,406
Dec 30, 2025	67.24	67.96	66.98	67.86	67.86	0.38%	2,650,255
Dec 29, 2025	67.09	67.90	66.65	67.60	67.60	0.88%	2,376,971
Dec 26, 2025	66.72	67.18	66.48	67.01	67.01	0.18%	1,574,168
Dec 24, 2025	66.34	67.27	66.30	66.89	66.89	0.38%	946,451
Dec 23, 2025	66.60	66.88	65.79	66.64	66.64	0.06%	2,680,852
Dec 22, 2025	65.12	66.69	64.97	66.60	66.60	2.10%	4,597,159
Dec 19, 2025	64.41	65.84	63.99	65.23	65.23	0.54%	9,576,214
Dec 18, 2025	65.01	65.50	64.65	64.88	64.88	0.08%	4,678,558
Dec 17, 2025	63.62	65.09	63.60	64.83	64.83	1.90%	4,680,495
Dec 16, 2025	64.00	64.89	63.36	63.62	63.62	-0.20%	4,729,162
Dec 15, 2025	68.25	68.25	62.00	63.75	63.75	-6.57%	8,271,442
Dec 12, 2025	67.92	68.51	67.74	68.23	68.23	1.13%	3,105,721
Dec 11, 2025	67.76	68.50	67.16	67.47	67.47	-0.59%	3,370,055
Dec 10, 2025	67.80	68.58	67.29	67.87	67.87	-0.09%	2,662,765
Dec 9, 2025	66.52	68.49	66.34	67.93	67.93	2.41%	2,774,363
Dec 8, 2025	67.92	67.95	66.08	66.33	66.33	-2.47%	2,134,942
Dec 5, 2025	67.81	68.77	67.47	68.01	68.01	-0.26%	2,903,531
Dec 4, 2025	69.00	69.06	68.08	68.19	68.19	-1.20%	2,140,409
Dec 3, 2025	68.22	69.12	68.03	69.02	69.02	1.20%	2,304,909
Dec 2, 2025	68.33	68.64	67.49	68.20	68.20	0.26%	3,120,823
Dec 1, 2025	67.97	69.30	67.85	68.02	68.02	-1.13%	3,026,121
Nov 28, 2025	68.45	68.90	67.74	68.80	68.80	1.45%	1,799,581
Nov 26, 2025	68.75	69.12	67.78	67.82	67.82	-1.99%	3,277,604
Nov 25, 2025	67.98	69.36	67.16	69.20	69.20	2.44%	3,523,473
Nov 24, 2025	67.42	68.27	66.95	67.55	67.55	0.45%	10,506,117
Nov 21, 2025	65.98	67.59	65.90	67.25	67.25	2.64%	5,769,901
Nov 20, 2025	66.73	66.81	64.72	65.52	65.52	-0.76%	5,403,137
Nov 19, 2025	66.43	66.52	65.45	66.02	66.02	-1.18%	3,903,231
Nov 18, 2025	67.00	67.42	66.23	66.81	66.81	-0.28%	3,961,848
Nov 17, 2025	68.05	69.02	66.63	67.00	67.00	-1.54%	3,346,156
Nov 14, 2025	68.34	69.06	67.86	68.05	68.05	-0.70%	3,648,659
Nov 13, 2025	68.50	69.13	68.26	68.53	68.53	-0.71%	4,617,055
Nov 12, 2025	68.27	69.29	67.42	69.02	69.02	0.89%	4,608,810
Nov 11, 2025	67.51	68.68	66.97	68.41	68.41	1.76%	3,683,766
Nov 10, 2025	67.52	67.55	66.27	67.23	67.23	-0.43%	3,887,935
Nov 7, 2025	67.38	68.34	66.59	67.52	67.52	0.24%	4,196,327
Nov 6, 2025	70.05	70.56	67.14	67.36	67.36	-4.37%	4,764,016
Nov 5, 2025	69.46	70.63	69.21	70.44	70.44	0.93%	3,897,903
Nov 4, 2025	69.65	70.09	68.57	69.79	69.79	0.59%	4,498,511
Nov 3, 2025	67.85	70.24	67.79	69.38	69.38	0.83%	7,955,895