CoStar Group Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Apr 27, 2026	31.29	31.29	31.29	31.29	31.29	1.23%	-
Apr 24, 2026	30.91	30.91	30.91	30.91	30.91	-3.03%	-
Apr 23, 2026	31.88	31.88	31.88	31.88	31.88	-3.74%	-
Apr 22, 2026	33.12	33.12	33.12	33.12	33.12	-2.67%	-
Apr 21, 2026	34.03	34.03	34.03	34.03	34.03	1.07%	-
Apr 20, 2026	33.67	33.67	33.67	33.67	33.67	-0.49%	-
Apr 17, 2026	33.83	33.83	33.83	33.83	33.83	-0.86%	-
Apr 16, 2026	32.97	32.97	32.97	34.13	34.13	3.52%	25
Apr 15, 2026	32.97	32.97	32.97	32.97	32.97	4.27%	-
Apr 14, 2026	31.62	31.62	31.62	31.62	31.62	2.20%	-
Apr 13, 2026	30.44	30.44	30.44	30.94	30.94	0.77%	417
Apr 10, 2026	32.18	32.18	32.18	30.70	30.70	-3.84%	26
Apr 9, 2026	31.93	31.93	31.93	31.93	31.93	-6.39%	-
Apr 8, 2026	34.11	34.11	34.11	34.11	34.11	-1.52%	-
Apr 7, 2026	34.63	34.63	34.63	34.63	34.63	-0.37%	-
Apr 2, 2026	34.17	34.17	34.17	34.76	34.76	1.74%	48
Apr 1, 2026	34.17	34.17	34.17	34.17	34.17	-2.25%	-
Mar 31, 2026	34.95	34.95	34.95	34.95	34.95	-2.13%	-
Mar 30, 2026	35.71	35.71	35.71	35.71	35.71	1.91%	-
Mar 27, 2026	35.04	35.04	35.04	35.04	35.04	-3.14%	-
Mar 26, 2026	36.18	36.18	36.18	36.18	36.18	1.49%	-
Mar 25, 2026	35.65	35.65	35.65	35.65	35.65	-0.25%	-
Mar 24, 2026	35.74	35.74	35.74	35.74	35.74	-2.06%	-
Mar 23, 2026	36.49	36.49	36.49	36.49	36.49	-1.68%	-
Mar 20, 2026	37.11	37.11	37.11	37.11	37.11	1.26%	-
Mar 19, 2026	36.65	36.65	36.65	36.65	36.65	-2.08%	-
Mar 18, 2026	37.43	37.43	37.43	37.43	37.43	-2.09%	-
Mar 17, 2026	38.35	38.35	38.35	38.23	38.23	0.59%	21
Mar 16, 2026	38.01	38.01	38.01	38.01	38.01	0.42%	-
Mar 13, 2026	37.85	37.85	37.85	37.85	37.85	-1.88%	-
Mar 12, 2026	38.57	38.57	38.57	38.57	38.57	-1.78%	-
Mar 11, 2026	39.27	39.27	39.27	39.27	39.27	-1.33%	-
Mar 10, 2026	39.80	39.80	39.80	39.80	39.80	-4.97%	-
Mar 9, 2026	41.88	41.88	41.88	41.88	41.88	0.29%	-
Mar 6, 2026	41.76	41.76	41.76	41.76	41.76	-0.11%	-
Mar 5, 2026	41.81	41.81	41.81	41.81	41.81	1.38%	-
Mar 4, 2026	41.36	41.36	41.36	41.24	41.24	3.41%	13
Mar 3, 2026	39.88	39.88	39.88	39.88	39.88	6.36%	-
Mar 2, 2026	37.30	37.30	37.22	37.49	37.49	-0.09%	24
Feb 27, 2026	37.53	37.53	37.53	37.53	37.53	-1.88%	-
Feb 26, 2026	38.43	38.43	38.43	38.25	38.25	2.55%	22
Feb 25, 2026	38.97	38.97	38.97	37.30	37.30	-9.88%	24
Feb 24, 2026	41.39	41.39	41.39	41.39	41.39	0.39%	-
Feb 23, 2026	41.23	41.23	41.23	41.23	41.23	-3.18%	23
Feb 20, 2026	42.77	43.22	42.77	42.58	42.58	3.21%	332
Feb 19, 2026	41.67	41.67	41.67	41.26	41.26	2.60%	24
Feb 18, 2026	38.83	38.83	38.83	40.21	40.21	6.28%	90
Feb 17, 2026	37.84	37.84	37.84	37.84	37.84	-	-
Feb 16, 2026	37.84	37.84	37.84	37.84	37.84	0.20%	-
Feb 13, 2026	37.76	37.76	37.76	37.76	37.76	-0.85%	-
Feb 12, 2026	38.09	38.09	38.09	38.09	38.09	-3.92%	-
Feb 11, 2026	40.83	40.83	40.51	39.64	39.64	-9.18%	573
Feb 10, 2026	43.65	43.65	43.65	43.65	43.65	3.62%	-
Feb 9, 2026	42.12	42.12	42.12	42.12	42.12	0.08%	-
Feb 6, 2026	43.73	43.73	43.73	42.09	42.09	-5.18%	69
Feb 5, 2026	44.20	44.20	43.75	44.39	44.39	0.43%	36
Feb 4, 2026	45.51	45.51	43.84	44.20	44.20	-3.75%	964
Feb 3, 2026	45.92	45.92	45.92	45.92	45.92	-13.17%	-
Feb 2, 2026	52.88	52.88	52.88	52.88	52.88	2.28%	-
Jan 30, 2026	52.82	52.82	52.82	51.70	51.70	-2.12%	14
Jan 29, 2026	53.35	53.35	53.35	52.82	52.82	-6.25%	16
Jan 28, 2026	57.29	57.29	57.29	56.34	56.34	0.77%	16
Jan 27, 2026	55.91	55.91	55.91	55.91	55.91	-0.53%	-
Jan 26, 2026	56.21	56.21	56.21	56.21	56.21	0.70%	-
Jan 23, 2026	55.97	55.97	55.97	55.82	55.82	-1.40%	11
Jan 22, 2026	56.61	56.61	56.61	56.61	56.61	3.83%	-
Jan 21, 2026	54.52	54.52	54.52	54.52	54.52	-0.85%	-
Jan 20, 2026	54.99	54.99	54.99	54.99	54.99	-1.77%	-
Jan 19, 2026	55.98	55.98	55.98	55.98	55.98	-0.96%	-
Jan 16, 2026	56.52	56.52	56.52	56.52	56.52	3.40%	-
Jan 15, 2026	54.66	54.66	54.66	54.66	54.66	1.75%	-
Jan 14, 2026	53.12	53.12	53.12	53.72	53.72	5.87%	10
Jan 13, 2026	50.74	50.74	50.74	50.74	50.74	3.06%	-
Jan 12, 2026	49.24	49.24	49.24	49.24	49.24	-4.06%	-
Jan 9, 2026	51.32	51.32	51.32	51.32	51.32	-3.91%	-
Jan 8, 2026	53.41	53.41	53.41	53.41	53.41	-2.78%	-
Jan 7, 2026	54.94	54.94	54.94	54.94	54.94	-3.82%	-
Jan 6, 2026	57.12	57.12	57.12	57.12	57.12	0.92%	-
Jan 5, 2026	56.60	56.60	56.60	56.60	56.60	1.02%	-
Jan 2, 2026	56.03	56.03	56.03	56.03	56.03	-2.47%	-
Dec 30, 2025	57.45	57.45	57.45	57.45	57.45	0.60%	-
Dec 29, 2025	57.11	57.11	57.11	57.11	57.11	1.89%	-
Dec 23, 2025	56.05	56.05	56.05	56.05	56.05	0.16%	-
Dec 22, 2025	55.96	55.96	55.96	55.96	55.96	0.02%	-
Dec 19, 2025	55.95	55.95	55.95	55.95	55.95	1.07%	-
Dec 18, 2025	55.36	55.36	55.36	55.36	55.36	1.30%	-
Dec 17, 2025	54.65	54.65	54.65	54.65	54.65	0.28%	-
Dec 16, 2025	54.50	54.50	54.50	54.50	54.50	2.33%	-
Dec 15, 2025	53.26	53.26	53.26	53.26	53.26	-8.43%	-
Dec 12, 2025	58.16	58.16	58.16	58.16	58.16	1.48%	-
Dec 11, 2025	57.59	57.59	57.59	57.31	57.31	-1.95%	100
Dec 10, 2025	58.45	58.45	58.45	58.45	58.45	2.15%	-
Dec 9, 2025	57.22	57.22	57.22	57.22	57.22	-0.63%	-
Dec 8, 2025	57.58	57.58	57.58	57.58	57.58	-2.09%	-
Dec 5, 2025	58.81	58.81	58.81	58.81	58.81	0.14%	-
Dec 4, 2025	58.73	58.73	58.73	58.73	58.73	-0.36%	-
Dec 3, 2025	58.94	58.94	58.94	58.94	58.94	0.67%	-
Dec 2, 2025	58.55	58.55	58.55	58.55	58.55	-0.88%	-
Dec 1, 2025	59.07	59.07	59.07	59.07	59.07	-0.30%	-
Nov 28, 2025	59.25	59.25	59.25	59.25	59.25	1.30%	-