Costar Group Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Jun 26, 2026	21.27	21.48	19.91	21.03	21.03	-2.09%	10,323,297
Jun 25, 2026	20.16	21.54	20.10	21.48	21.48	4.47%	11,284,719
Jun 24, 2026	19.28	20.58	18.93	20.56	20.56	5.06%	9,087,738
Jun 23, 2026	19.13	20.74	19.00	19.57	19.57	2.30%	6,791,900
Jun 22, 2026	19.88	19.88	18.59	19.13	19.13	-3.77%	6,334,401
Jun 18, 2026	20.66	20.68	19.87	19.88	19.88	-4.42%	4,905,536
Jun 17, 2026	20.95	21.05	20.60	20.80	20.80	-1.65%	4,451,012
Jun 16, 2026	20.28	21.32	20.28	21.15	21.15	3.52%	5,737,336
Jun 15, 2026	20.25	20.63	20.08	20.43	20.43	0.59%	4,256,632
Jun 12, 2026	20.28	20.88	20.21	20.31	20.31	0.05%	6,257,987
Jun 11, 2026	19.67	21.16	19.25	20.30	20.30	1.60%	6,991,684
Jun 10, 2026	19.89	20.75	19.60	19.98	19.98	-0.45%	3,654,379
Jun 9, 2026	19.98	20.09	19.51	20.07	20.07	2.14%	2,557,134
Jun 8, 2026	20.26	20.46	19.43	19.65	19.65	-4.93%	4,071,800
Jun 5, 2026	20.50	21.04	20.01	20.67	20.67	0.73%	3,451,000
Jun 4, 2026	20.92	21.25	20.40	20.52	20.52	-2.52%	3,121,677
Jun 3, 2026	20.88	21.95	20.75	21.05	21.05	1.15%	4,377,090
Jun 2, 2026	21.06	21.23	20.43	20.81	20.81	-1.28%	3,315,437
Jun 1, 2026	21.36	21.63	21.05	21.08	21.08	-0.75%	3,218,400
May 29, 2026	22.48	22.56	21.16	21.24	21.24	-5.73%	5,708,872
May 28, 2026	22.29	22.71	21.75	22.53	22.53	1.03%	4,655,672
May 27, 2026	22.42	22.98	22.18	22.30	22.30	-1.41%	3,735,000
May 26, 2026	23.24	23.37	22.24	22.62	22.62	-3.46%	5,264,500
May 25, 2026	23.14	23.60	22.91	23.43	23.43	2.23%	5,805,221
May 22, 2026	22.29	23.23	22.11	22.92	22.92	3.71%	5,296,183
May 21, 2026	22.81	23.90	22.09	22.10	22.10	-2.47%	5,499,120
May 20, 2026	22.78	23.09	22.45	22.66	22.66	-0.74%	3,727,200
May 19, 2026	22.34	22.88	22.00	22.83	22.83	2.42%	3,622,538
May 18, 2026	22.79	22.79	22.10	22.29	22.29	-2.58%	4,344,572
May 15, 2026	22.92	23.42	22.71	22.88	22.88	-0.09%	4,052,300
May 14, 2026	23.63	23.69	22.90	22.90	22.90	-3.21%	4,941,879
May 13, 2026	23.67	23.92	23.11	23.66	23.66	-0.17%	5,834,100
May 12, 2026	24.26	24.39	23.65	23.70	23.70	-3.27%	7,639,814
May 11, 2026	24.00	24.58	23.60	24.50	24.50	1.87%	12,189,650
May 8, 2026	22.64	24.32	22.37	24.05	24.05	6.23%	14,376,698
May 7, 2026	21.70	22.73	21.33	22.64	22.64	6.19%	9,957,960
May 6, 2026	21.10	21.45	21.10	21.32	21.32	1.04%	3,214,001
Apr 30, 2026	20.49	21.14	20.32	21.10	21.10	2.88%	3,433,103
Apr 29, 2026	20.64	20.79	20.49	20.51	20.51	-1.72%	2,735,378
Apr 28, 2026	20.76	21.12	20.48	20.87	20.87	0.53%	4,157,901
Apr 27, 2026	20.27	20.83	20.18	20.76	20.76	2.42%	2,915,502
Apr 24, 2026	20.61	20.70	20.20	20.27	20.27	-1.84%	2,880,300
Apr 23, 2026	21.10	21.20	20.50	20.65	20.65	-2.13%	3,564,900
Apr 22, 2026	20.56	21.35	20.39	21.10	21.10	2.23%	5,207,600
Apr 21, 2026	20.56	20.90	20.38	20.64	20.64	-0.29%	4,013,400
Apr 20, 2026	20.24	21.25	20.15	20.70	20.70	2.22%	6,316,400
Apr 17, 2026	19.88	20.27	19.74	20.25	20.25	1.50%	3,205,700
Apr 16, 2026	19.79	20.00	19.63	19.95	19.95	0.76%	2,415,010
Apr 15, 2026	20.00	20.08	19.72	19.80	19.80	-1.00%	2,627,300
Apr 14, 2026	20.16	20.16	19.83	20.00	20.00	0.05%	2,228,200