Costar Group Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Aug 28, 2026	18.84	19.48	18.78	19.06	19.06	1.22%	3,453,402
Aug 27, 2026	18.51	18.94	18.41	18.83	18.83	1.73%	2,665,700
Aug 26, 2026	18.35	18.76	18.31	18.51	18.51	0.11%	1,769,200
Aug 25, 2026	17.82	18.55	17.81	18.49	18.49	2.44%	2,408,433
Aug 24, 2026	18.19	18.30	17.90	18.05	18.05	-0.82%	1,460,400
Aug 21, 2026	18.18	18.28	17.81	18.20	18.20	0.11%	1,153,000
Aug 20, 2026	17.76	18.30	17.76	18.18	18.18	2.02%	1,861,435
Aug 19, 2026	18.74	18.76	17.71	17.82	17.82	-5.31%	3,283,049
Aug 18, 2026	19.39	19.39	18.69	18.82	18.82	-2.03%	2,952,202
Aug 17, 2026	19.15	19.30	19.03	19.21	19.21	-0.05%	2,303,300
Aug 14, 2026	19.00	19.29	18.97	19.22	19.22	0.89%	2,501,200
Aug 13, 2026	19.23	19.38	18.95	19.05	19.05	-0.94%	3,122,467
Aug 12, 2026	19.12	19.39	19.06	19.23	19.23	0.05%	3,156,001
Aug 11, 2026	19.71	19.88	19.20	19.22	19.22	-4.38%	5,655,669
Aug 10, 2026	18.64	20.14	18.49	20.10	20.10	7.66%	8,708,729
Aug 7, 2026	18.60	18.80	18.30	18.67	18.67	-0.53%	2,628,900
Aug 6, 2026	18.67	18.96	18.40	18.77	18.77	-0.21%	3,803,100
Aug 5, 2026	18.60	18.90	18.53	18.81	18.81	1.13%	3,626,300
Aug 4, 2026	18.61	18.74	18.36	18.60	18.60	1.20%	3,298,122
Aug 3, 2026	18.25	18.40	18.07	18.38	18.38	0.33%	2,552,700
Jul 31, 2026	17.94	18.53	17.85	18.32	18.32	0.94%	4,096,600
Jul 30, 2026	18.52	19.06	18.14	18.15	18.15	-3.10%	4,265,800
Jul 29, 2026	18.51	18.87	18.20	18.73	18.73	-0.37%	4,312,809
Jul 28, 2026	19.40	19.62	18.40	18.80	18.80	-6.00%	7,125,903
Jul 27, 2026	18.50	20.24	18.41	20.00	20.00	4.71%	10,592,351
Jul 24, 2026	17.04	19.10	16.99	19.10	19.10	10.02%	8,439,124
Jul 23, 2026	16.55	17.60	16.51	17.36	17.36	4.39%	3,459,200
Jul 22, 2026	16.90	17.01	16.49	16.63	16.63	-2.06%	2,214,600
Jul 21, 2026	17.40	17.40	15.96	16.98	16.98	-1.28%	4,290,625
Jul 20, 2026	18.05	18.15	16.80	17.20	17.20	-3.91%	2,943,048
Jul 17, 2026	18.42	18.55	17.72	17.90	17.90	-3.66%	2,561,787
Jul 16, 2026	18.75	19.03	18.53	18.58	18.58	-1.48%	1,642,000
Jul 15, 2026	18.71	18.94	18.54	18.86	18.86	0.16%	1,519,992
Jul 14, 2026	18.83	19.03	18.28	18.83	18.83	-0.42%	2,167,300
Jul 13, 2026	19.69	19.69	18.80	18.91	18.91	-4.74%	2,986,800
Jul 10, 2026	19.62	20.22	19.44	19.85	19.85	1.22%	3,612,167
Jul 9, 2026	19.49	19.65	18.95	19.61	19.61	1.87%	2,690,033
Jul 8, 2026	20.04	20.20	19.13	19.25	19.25	-3.94%	2,968,500
Jul 7, 2026	20.50	21.00	19.66	20.04	20.04	-2.91%	4,717,800
Jul 6, 2026	21.52	21.63	20.62	20.64	20.64	-3.55%	3,380,800
Jul 3, 2026	21.92	22.13	21.40	21.40	21.40	-3.34%	5,334,420
Jul 2, 2026	22.10	22.78	21.78	22.14	22.14	-1.82%	6,686,619
Jul 1, 2026	22.02	22.79	21.91	22.55	22.55	0.85%	7,724,702
Jun 30, 2026	21.24	22.36	21.11	22.36	22.36	5.03%	9,279,304
Jun 29, 2026	20.71	21.59	20.71	21.29	21.29	1.24%	7,502,079
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