Costar Group Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
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
Apr 13, 2026	19.73	20.00	19.65	19.99	19.99	0.96%	2,099,100
Apr 10, 2026	19.86	20.09	19.79	19.80	19.80	0.30%	3,481,500
Apr 9, 2026	19.36	19.97	19.31	19.74	19.74	0.87%	4,075,300
Apr 8, 2026	19.08	19.59	19.01	19.57	19.57	4.10%	4,615,300
Apr 7, 2026	19.24	19.34	18.75	18.80	18.80	-2.44%	3,183,500
Apr 3, 2026	19.01	19.95	18.33	19.27	19.27	1.85%	5,251,509
Apr 2, 2026	19.29	19.43	18.88	18.92	18.92	-2.02%	3,470,801
Apr 1, 2026	19.60	19.64	19.22	19.31	19.31	0.26%	2,124,310
Mar 31, 2026	19.55	19.64	19.25	19.26	19.26	-1.43%	2,942,171
Mar 30, 2026	19.52	20.05	19.39	19.54	19.54	-1.96%	4,751,303
Mar 27, 2026	19.28	20.13	19.15	19.93	19.93	3.16%	4,384,634
Mar 26, 2026	20.02	20.10	19.29	19.32	19.32	-4.97%	4,807,580
Mar 25, 2026	19.45	20.74	19.24	20.33	20.33	4.52%	7,178,488
Mar 24, 2026	18.70	19.57	18.41	19.45	19.45	6.52%	5,964,878
Mar 23, 2026	19.14	19.14	18.11	18.26	18.26	-5.54%	4,173,182
Mar 20, 2026	20.39	20.41	19.29	19.33	19.33	-3.40%	3,713,147
Mar 19, 2026	20.38	20.59	19.94	20.01	20.01	-2.96%	2,907,300
Mar 18, 2026	20.70	20.79	20.36	20.62	20.62	-0.39%	2,106,803
Mar 17, 2026	21.22	21.25	20.67	20.70	20.70	-2.45%	2,070,600
Mar 16, 2026	21.01	21.22	20.84	21.22	21.22	1.00%	1,775,312
Mar 13, 2026	21.18	21.32	20.97	21.01	21.01	-0.80%	2,187,100
Mar 12, 2026	21.60	21.62	21.15	21.18	21.18	-2.04%	2,652,000
Mar 11, 2026	21.95	22.02	21.58	21.62	21.62	-1.46%	2,495,523
Mar 10, 2026	21.68	22.03	21.68	21.94	21.94	1.25%	2,425,518
Mar 9, 2026	21.60	21.81	21.33	21.67	21.67	-0.96%	2,936,402
Mar 6, 2026	21.86	22.08	21.55	21.88	21.88	-1.17%	3,419,767
Mar 5, 2026	21.68	22.41	21.60	22.14	22.14	4.14%	5,445,796