CoStar Group Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Mar 19, 2026	2.23	2.23	2.23	2.23	2.23	-0.45%	100
Mar 18, 2026	2.24	2.24	2.24	2.24	2.24	-1.32%	216
Mar 17, 2026	2.30	2.30	2.27	2.27	2.27	-0.44%	35
Mar 16, 2026	2.34	2.34	2.28	2.28	2.28	-2.56%	23
Mar 13, 2026	2.35	2.35	2.28	2.34	2.34	0.86%	226
Mar 12, 2026	2.30	2.38	2.29	2.32	2.32	-1.28%	413
Mar 11, 2026	2.36	2.36	2.33	2.35	2.35	-1.67%	415
Mar 10, 2026	2.46	2.47	2.38	2.39	2.39	-5.16%	26
Mar 9, 2026	2.52	2.52	2.52	2.52	2.52	-1.18%	36
Mar 6, 2026	2.56	2.56	2.53	2.55	2.55	-0.78%	209
Mar 5, 2026	2.43	2.58	2.43	2.57	2.57	2.80%	21
Mar 4, 2026	2.49	2.53	2.49	2.50	2.50	1.63%	41
Mar 3, 2026	2.34	2.49	2.34	2.46	2.46	7.42%	5,636
Mar 2, 2026	2.27	2.30	2.27	2.29	2.29	0.44%	1,102
Feb 27, 2026	2.30	2.30	2.28	2.28	2.28	-2.56%	220
Feb 26, 2026	2.35	2.35	2.32	2.34	2.34	2.63%	30
Feb 25, 2026	2.44	2.49	2.24	2.28	2.28	-9.88%	9,986
Feb 24, 2026	2.53	2.53	2.53	2.53	2.53	1.61%	107
Feb 23, 2026	2.62	2.62	2.49	2.49	2.49	-4.60%	417
Feb 20, 2026	2.57	2.65	2.57	2.61	2.61	3.57%	2,675
Feb 19, 2026	2.51	2.52	2.51	2.52	2.52	-1.56%	309
Feb 18, 2026	2.52	2.56	2.52	2.56	2.56	8.47%	224
Feb 13, 2026	2.31	2.36	2.31	2.36	2.36	0.43%	5
Feb 12, 2026	2.45	2.45	2.30	2.35	2.35	-5.62%	7,193
Feb 11, 2026	2.58	2.58	2.43	2.49	2.49	-5.68%	2,373
Feb 10, 2026	2.59	2.72	2.58	2.64	2.64	-11.71%	2,724
Feb 9, 2026	3.08	3.08	2.54	2.99	2.99	-8.28%	1,497
Feb 6, 2026	2.56	3.26	2.56	3.26	3.26	20.74%	253
Feb 5, 2026	2.75	2.75	2.70	2.70	2.70	-1.82%	275
Feb 4, 2026	2.75	2.78	2.70	2.75	2.75	1.10%	43
Feb 3, 2026	3.26	3.26	2.72	2.72	2.72	-15.79%	1,177
Feb 2, 2026	2.85	3.27	2.85	3.23	3.23	-23.46%	2,040
Jan 29, 2026	4.13	4.22	3.20	4.22	4.22	-	2,484
Jan 28, 2026	3.44	4.22	3.44	4.22	4.22	21.26%	2
Jan 23, 2026	3.44	3.48	3.44	3.48	3.48	1.16%	4
Jan 19, 2026	3.44	3.44	3.44	3.44	3.44	-3.37%	150
Jan 16, 2026	3.50	3.56	3.46	3.56	3.56	5.95%	346
Jan 15, 2026	3.36	3.36	3.36	3.36	3.36	3.70%	156
Jan 13, 2026	3.24	3.24	3.24	3.24	3.24	5.88%	50
Jan 12, 2026	3.06	3.06	3.06	3.06	3.06	-3.77%	1
Jan 9, 2026	3.24	3.24	3.18	3.18	3.18	-4.50%	7,916
Jan 7, 2026	3.50	3.50	3.33	3.33	3.33	-5.40%	32
Jan 6, 2026	3.54	3.54	3.52	3.52	3.52	-2.49%	2
Jan 5, 2026	3.62	3.62	3.61	3.61	3.61	0.84%	22
Jan 2, 2026	3.77	3.77	3.56	3.58	3.58	-4.02%	210
Dec 30, 2025	3.73	3.73	3.73	3.73	3.73	0.27%	1
Dec 29, 2025	3.72	3.72	3.72	3.72	3.72	0.27%	1
Dec 26, 2025	3.70	3.71	3.70	3.71	3.71	1.09%	2
Dec 23, 2025	3.67	3.67	3.67	3.67	3.67	0.27%	1
Dec 22, 2025	3.66	3.66	3.66	3.66	3.66	2.52%	1