CoStar Group Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Feb 20, 2026	41.62	41.62	41.62	41.62	41.62	2.10%	-
Feb 19, 2026	40.76	40.76	40.76	40.76	40.76	2.99%	-
Feb 18, 2026	37.90	39.58	37.90	39.58	39.58	3.45%	4
Feb 17, 2026	37.57	38.98	37.57	38.26	38.26	1.39%	80
Feb 16, 2026	37.73	37.73	37.73	37.73	37.73	1.57%	-
Feb 13, 2026	37.15	37.15	37.15	37.15	37.15	-6.44%	-
Feb 12, 2026	39.70	39.70	39.70	39.70	39.70	-5.52%	-
Feb 11, 2026	42.02	42.02	42.02	42.02	42.02	0.08%	-
Feb 10, 2026	41.99	41.99	41.99	41.99	41.99	0.62%	-
Feb 9, 2026	41.73	41.73	41.73	41.73	41.73	-1.87%	-
Feb 6, 2026	42.52	42.52	42.52	42.52	42.52	-5.70%	-
Feb 5, 2026	45.09	45.09	45.09	45.09	45.09	3.10%	1
Feb 4, 2026	43.74	43.74	43.74	43.74	43.74	-12.51%	-
Feb 3, 2026	51.09	51.09	49.99	49.99	49.99	-1.34%	100
Feb 2, 2026	50.67	50.67	50.67	50.67	50.67	-0.28%	-
Jan 30, 2026	50.81	50.81	50.81	50.81	50.81	-4.80%	-
Jan 29, 2026	53.37	53.37	53.37	53.37	53.37	-2.04%	-
Jan 28, 2026	54.48	54.48	54.48	54.48	54.48	-0.24%	-
Jan 27, 2026	54.61	54.61	54.61	54.61	54.61	0.18%	-
Jan 26, 2026	54.51	54.51	54.51	54.51	54.51	-2.14%	-
Jan 23, 2026	55.70	55.70	55.70	55.70	55.70	-3.11%	-
Jan 22, 2026	54.71	57.49	54.71	57.49	57.49	7.02%	10
Jan 21, 2026	53.72	53.72	53.72	53.72	53.72	-0.89%	-
Jan 20, 2026	54.60	54.60	54.20	54.20	54.20	-3.54%	1
Jan 19, 2026	55.19	56.19	55.19	56.19	56.19	4.19%	1
Jan 16, 2026	53.93	53.93	53.93	53.93	53.93	-0.30%	-
Jan 15, 2026	54.09	54.09	54.09	54.09	54.09	3.62%	-
Jan 14, 2026	52.20	52.20	52.20	52.20	52.20	4.25%	-
Jan 13, 2026	50.07	50.07	50.07	50.07	50.07	1.68%	-
Jan 12, 2026	49.25	49.25	49.25	49.25	49.25	-5.17%	-
Jan 9, 2026	51.93	51.93	51.93	51.93	51.93	-3.19%	-
Jan 8, 2026	51.92	53.64	51.92	53.64	53.64	-5.45%	30
Jan 7, 2026	56.73	56.73	56.73	56.73	56.73	1.56%	-
Jan 6, 2026	55.86	55.86	55.86	55.86	55.86	0.59%	-
Jan 5, 2026	55.53	55.53	55.53	55.53	55.53	-1.70%	-
Jan 2, 2026	56.49	56.49	56.49	56.49	56.49	-0.23%	-
Dec 30, 2025	56.62	56.62	56.62	56.62	56.62	1.18%	-
Dec 29, 2025	55.96	55.96	55.96	55.96	55.96	0.34%	-
Dec 23, 2025	55.77	55.77	55.77	55.77	55.77	1.47%	-
Dec 22, 2025	54.96	54.96	54.96	54.96	54.96	0.92%	-
Dec 19, 2025	54.46	54.46	54.46	54.46	54.46	0.06%	-
Dec 18, 2025	54.43	54.43	54.43	54.43	54.43	1.64%	-
Dec 17, 2025	53.55	53.55	53.55	53.55	53.55	0.39%	-
Dec 16, 2025	53.34	53.34	53.34	53.34	53.34	-7.35%	-
Dec 15, 2025	57.57	57.57	57.57	57.57	57.57	1.25%	-
Dec 12, 2025	56.86	56.86	56.86	56.86	56.86	-0.40%	-
Dec 11, 2025	57.09	57.09	57.09	57.09	57.09	-0.97%	-
Dec 10, 2025	57.65	57.65	57.65	57.65	57.65	2.54%	-
Dec 9, 2025	56.22	56.22	56.22	56.22	56.22	-2.41%	-
Dec 8, 2025	57.61	57.61	57.61	57.61	57.61	-2.50%	-