CoStar Group Inc (CSGP) — Price History

As of 2026-08-07 — refreshed nightly from the Closelook data lake. Diary readings, not advice.

Daily prices

Date	Open	High	Low	Close	Chg %	Volume
2026-08-07	30.05	31.68	30.04	30.24	+2.23%	6,205,500
2026-08-06	29.89	30.22	29.27	29.58	-2.09%	7,812,200
2026-08-05	30.61	30.75	29.53	30.21	+1.31%	6,644,400
2026-08-04	29.42	30.07	29.35	29.82	-0.70%	5,794,200
2026-08-03	29.47	30.18	29.26	30.03	+4.42%	6,026,900
2026-07-31	29.02	29.38	28.38	28.76	-2.38%	8,230,500
2026-07-30	28.27	29.57	28.13	29.46	-1.24%	12,134,100
2026-07-29	26.03	30.45	25.89	29.83	-1.65%	17,581,000
2026-07-28	29.90	31.40	29.75	30.33	+3.98%	9,819,900
2026-07-27	28.05	29.92	28.04	29.17	+5.46%	9,804,600
2026-07-24	27.28	28.09	27.09	27.66	+1.92%	6,846,800
2026-07-23	27.89	28.03	26.77	27.14	-1.99%	7,157,600
2026-07-22	28.76	28.92	27.48	27.69	-2.84%	5,635,600
2026-07-21	28.63	29.39	28.34	28.50	-3.98%	5,576,400
2026-07-20	29.50	29.90	28.85	29.68	-0.34%	6,352,200
2026-07-17	30.64	31.01	29.59	29.78	-1.94%	5,898,200
2026-07-16	29.07	30.52	28.96	30.37	+6.60%	8,941,700
2026-07-15	28.04	29.25	27.96	28.49	+2.93%	7,340,400
2026-07-14	27.00	28.00	26.68	27.68	-3.79%	14,088,800
2026-07-13	28.88	29.38	28.22	28.77	+1.34%	6,451,100
2026-07-10	29.67	30.05	28.09	28.39	-2.74%	5,916,200
2026-07-09	28.86	29.35	28.44	29.19	-0.51%	4,955,400
2026-07-08	29.66	29.82	29.02	29.34	-1.77%	5,101,300
2026-07-07	29.67	30.14	29.19	29.87	+4.08%	6,002,400
2026-07-06	29.68	29.83	28.54	28.70	-4.33%	6,720,800
2026-07-02	29.56	30.42	29.22	30.00	+2.18%	4,735,800
2026-07-01	29.08	30.02	28.77	29.36	+3.67%	6,235,100
2026-06-30	29.03	29.26	28.18	28.32	-3.41%	6,929,800
2026-06-29	30.61	30.71	29.20	29.32	-3.07%	5,599,300
2026-06-26	28.90	30.52	28.84	30.25	+5.62%	8,813,800
2026-06-25	29.31	29.68	28.54	28.64	-3.92%	6,449,800
2026-06-24	29.89	30.89	29.76	29.81	-1.49%	6,675,200
2026-06-23	29.73	30.60	29.73	30.26	+3.56%	8,313,800
2026-06-22	30.05	31.04	29.08	29.22	-2.99%	7,025,600
2026-06-18	30.46	30.73	29.53	30.12	-1.12%	16,140,800
2026-06-17	31.80	32.56	30.38	30.46	-4.72%	9,728,900
2026-06-16	32.01	32.72	31.64	31.97	-0.22%	5,749,300
2026-06-15	32.68	34.08	31.91	32.04	-2.44%	6,018,600
2026-06-12	32.57	33.19	31.63	32.84	+0.58%	4,914,800
2026-06-11	33.53	34.06	32.33	32.65	-4.62%	7,751,600
2026-06-10	33.58	34.77	33.16	34.23	+0.88%	6,276,100
2026-06-09	33.05	34.20	32.85	33.93	+1.62%	6,634,900
2026-06-08	33.31	34.04	32.68	33.39	-1.48%	7,712,700
2026-06-05	33.93	34.27	33.06	33.89	+0.68%	6,998,700
2026-06-04	34.66	34.82	33.13	33.66	+0.78%	7,347,900
2026-06-03	33.51	33.52	32.05	33.40	-0.77%	9,461,300
2026-06-02	33.08	33.76	31.70	33.66	-0.59%	9,188,500
2026-06-01	32.62	33.88	32.01	33.86	+5.16%	8,038,400
2026-05-29	32.65	32.94	31.86	32.20	-0.31%	7,788,800
2026-05-28	32.24	32.90	32.00	32.30	-0.06%	6,747,800
2026-05-27	32.59	33.48	32.21	32.32	-0.62%	5,016,900
2026-05-26	33.61	33.71	32.50	32.52	-4.21%	5,964,300
2026-05-22	33.87	34.64	33.61	33.95	+0.06%	4,615,700
2026-05-21	33.65	34.43	33.03	33.93	-0.24%	5,411,000
2026-05-20	33.41	34.26	32.19	34.01	+0.62%	5,009,200
2026-05-19	33.80	34.86	33.28	33.80	+1.81%	6,596,500
2026-05-18	32.73	34.34	32.42	33.20	+1.59%	10,165,100
2026-05-15	31.92	33.02	31.92	32.68	+2.61%	37,834,000
2026-05-14	31.97	32.58	31.36	31.85	-0.38%	7,866,800
2026-05-13	32.41	32.88	31.78	31.97	-3.27%	8,482,100
2026-05-12	33.21	33.54	32.21	33.05	+0.39%	8,260,700
2026-05-11	32.45	33.19	32.09	32.92	+0.46%	8,214,700
2026-05-08	34.62	34.64	32.71	32.77	-6.32%	7,105,400
2026-05-07	34.08	35.59	33.94	34.98	+2.67%	7,712,000
2026-05-06	34.95	35.26	34.03	34.07	-2.38%	5,466,000
2026-05-05	35.23	35.37	33.82	34.90	-1.36%	5,587,200
2026-05-04	35.77	35.86	34.69	35.38	+1.90%	6,712,500
2026-05-01	35.28	36.09	34.35	34.72	+0.32%	6,367,800
2026-04-30	33.76	34.75	33.33	34.61	+1.38%	7,908,200
2026-04-29	35.65	36.53	33.32	34.14	-5.06%	15,388,100
2026-04-28	36.85	37.39	35.88	35.96	-0.77%	7,354,900
2026-04-27	36.20	36.98	36.08	36.24	-0.55%	5,669,100
2026-04-24	37.30	37.49	36.04	36.44	-2.51%	4,343,200
2026-04-23	38.48	38.70	36.56	37.38	-3.59%	6,626,600
2026-04-22	39.13	39.62	37.77	38.77	-0.36%	4,509,700
2026-04-21	40.16	41.03	38.77	38.91	-2.87%	4,004,100
2026-04-20	39.70	40.32	39.36	40.06	+0.86%	3,782,800
2026-04-17	40.58	40.94	39.52	39.72	-0.80%	3,993,900
2026-04-16	39.77	40.41	39.57	40.04	+1.86%	6,694,100
2026-04-15	38.05	39.52	37.64	39.31	+4.55%	6,507,500
2026-04-14	36.81	38.35	36.81	37.60	+1.46%	7,372,300
2026-04-13	36.14	37.26	34.75	37.06	+1.59%	11,553,600
2026-04-10	37.30	37.50	35.77	36.48	-2.25%	5,175,700
2026-04-09	38.28	38.44	36.91	37.32	-3.86%	5,766,600
2026-04-08	40.73	41.13	38.48	38.82	-1.67%	6,050,800
2026-04-07	41.11	41.25	39.44	39.48	-4.13%	4,277,400
2026-04-06	39.92	41.29	39.64	41.18	+3.08%	5,477,100
2026-04-02	39.65	40.84	38.70	39.95	+0.81%	5,797,800
2026-04-01	40.34	40.34	38.69	39.63	-1.76%	5,478,000
2026-03-31	41.50	41.63	39.57	40.34	-1.32%	5,481,900
2026-03-30	40.16	41.07	40.04	40.88	+2.79%	6,667,800
2026-03-27	41.07	41.43	39.18	39.77	-3.70%	6,295,200
2026-03-26	40.95	42.71	40.95	41.30	-0.27%	4,984,300
2026-03-25	41.84	42.12	40.33	41.41	-0.12%	5,753,000
2026-03-24	42.32	42.52	40.78	41.46	-3.38%	4,556,800
2026-03-23	43.67	43.75	41.79	42.91	+0.02%	7,209,300
2026-03-20	42.24	43.27	41.96	42.90	+0.19%	15,182,900
2026-03-19	42.73	43.57	41.84	42.82	-0.67%	6,127,000
2026-03-18	43.53	44.13	42.65	43.11	-2.58%	8,457,700
2026-03-17	44.07	45.21	43.62	44.25	+1.44%	4,299,000
2026-03-16	43.95	44.10	43.45	43.62	-0.02%	5,905,000
2026-03-13	43.71	44.27	42.94	43.63	+0.62%	5,270,600
2026-03-12	45.01	46.34	43.29	43.36	-4.37%	6,289,500
2026-03-11	46.46	47.15	44.83	45.34	-2.14%	5,274,600
2026-03-10	47.73	48.31	45.50	46.33	-4.32%	4,530,916
2026-03-09	48.20	48.93	47.62	48.42	+0.08%	5,632,907
2026-03-06	48.36	48.74	47.64	48.38	-1.08%	3,959,600
2026-03-05	47.48	49.03	47.27	48.91	+2.75%	5,872,000
2026-03-04	46.81	48.25	46.81	47.60	+1.75%	4,337,500
2026-03-03	45.88	47.37	44.78	46.78	+3.56%	5,592,200
2026-03-02	43.58	45.38	43.16	45.17	+1.21%	6,342,200
2026-02-27	43.99	45.41	43.74	44.63	-0.82%	8,059,300
2026-02-26	45.54	46.12	44.79	45.00	+0.49%	7,624,500
2026-02-25	46.59	47.10	43.17	44.78	-8.89%	11,638,500
2026-02-24	47.56	49.75	47.33	49.15	+2.67%	5,596,600
2026-02-23	49.39	50.07	47.81	47.87	-4.01%	7,213,500
2026-02-20	50.05	52.08	49.43	49.87	+1.63%	7,901,800
2026-02-19	48.53	49.48	48.05	49.07	+0.27%	5,216,200
2026-02-18	46.37	49.07	46.37	48.94	+7.00%	7,988,300
2026-02-17	44.97	45.82	43.80	45.74	+1.67%	8,854,700
2026-02-13	45.34	45.90	44.55	44.99	-0.09%	5,526,701
2026-02-12	47.72	48.04	43.92	45.03	-5.93%	10,330,060
2026-02-11	50.31	50.31	46.78	47.87	-5.86%	6,227,631
2026-02-10	50.20	52.35	50.20	50.85	-0.22%	5,956,289
2026-02-09	49.64	51.36	48.55	50.96	+1.35%	8,650,054
2026-02-06	51.13	51.69	48.76	50.28	-1.39%	6,756,617
2026-02-05	52.78	53.32	50.72	50.99	-2.58%	7,443,178
2026-02-04	52.14	53.38	50.59	52.34	+1.18%	11,033,560
2026-02-03	60.13	60.39	51.57	51.73	-15.45%	12,882,750
2026-02-02	61.46	62.67	61.04	61.18	-0.52%	6,010,924
2026-01-30	61.51	62.38	60.77	61.50	-0.69%	4,662,902
2026-01-29	65.31	65.46	61.61	61.93	-5.02%	4,517,349
2026-01-28	66.97	67.68	65.15	65.20	-1.54%	4,374,831
2026-01-27	69.28	70.57	65.69	66.22	+0.62%	17,993,359
2026-01-26	65.95	67.06	65.75	65.81	+0.32%	4,026,603
2026-01-23	65.72	66.68	65.26	65.60	-1.00%	4,985,944
2026-01-22	64.87	67.79	64.69	66.26	+2.30%	7,257,174
2026-01-21	63.98	64.96	62.80	64.77	+1.49%	6,367,541
2026-01-20	64.09	64.81	63.17	63.82	-2.33%	5,721,396
2026-01-16	63.41	65.93	63.14	65.34	+3.09%	7,622,875
2026-01-15	63.97	64.58	62.08	63.38	-0.77%	5,471,880
2026-01-14	61.42	63.93	61.14	63.87	+3.32%	8,203,352
2026-01-13	58.91	62.52	58.13	61.82	+4.25%	12,699,290
2026-01-12	58.49	59.44	57.01	59.30	+1.38%	8,883,496
2026-01-09	61.36	61.83	58.41	58.49	-4.68%	7,690,623
2026-01-08	60.61	62.89	60.19	61.36	-0.49%	8,338,141
2026-01-07	68.26	68.98	61.57	61.66	-8.24%	13,759,010
2026-01-06	66.02	67.64	65.23	67.20	+1.17%	3,143,273
2026-01-05	65.60	67.38	65.22	66.42	+1.11%	4,369,181
2026-01-02	67.11	67.22	65.22	65.69	-2.31%	4,368,222
2025-12-31	67.86	67.86	67.00	67.24	-0.91%	2,069,592
2025-12-30	67.24	67.96	66.97	67.86	+0.38%	2,678,415
2025-12-29	67.09	67.90	66.65	67.60	+0.88%	3,300,912
2025-12-26	66.72	67.17	66.48	67.01	+0.18%	2,295,058
2025-12-24	66.34	67.27	66.30	66.89	+0.38%	992,758
2025-12-23	66.60	66.88	65.79	66.64	+0.06%	2,723,477
2025-12-22	65.12	66.69	64.97	66.60	+2.10%	4,613,830
2025-12-19	64.41	65.84	63.99	65.23	+0.54%	9,576,214
2025-12-18	65.01	65.50	64.65	64.88	+0.08%	5,129,500
2025-12-17	63.62	65.08	63.59	64.83	+1.90%	5,365,647
2025-12-16	64.00	64.89	63.36	63.62	-0.20%	4,762,047
2025-12-15	68.25	68.25	62.00	63.75	-6.57%	8,312,661
2025-12-12	67.92	68.51	67.73	68.23	+1.13%	3,147,285
2025-12-11	67.76	68.50	67.16	67.47	-0.59%	3,408,400
2025-12-10	67.80	68.58	67.28	67.87	-0.09%	2,744,006
2025-12-09	66.52	68.49	66.34	67.93	+2.41%	2,774,458
2025-12-08	67.92	67.95	66.08	66.33	-2.47%	3,429,321
2025-12-05	67.81	68.77	67.47	68.01	-0.26%	2,950,746
2025-12-04	69.00	69.06	68.08	68.19	-1.20%	2,329,218
2025-12-03	68.22	69.12	68.03	69.02	+1.20%	2,449,698
2025-12-02	68.33	68.64	67.49	68.20	+0.26%	3,120,829
2025-12-01	67.97	69.30	67.85	68.02	-1.13%	3,026,120
2025-11-28	68.44	68.90	67.74	68.80	+1.45%	1,806,660
2025-11-26	68.75	69.12	67.78	67.82	-1.99%	3,287,376
2025-11-25	67.98	69.36	67.16	69.20	+2.44%	3,746,797
2025-11-24	67.42	68.27	66.94	67.55	+0.45%	10,979,940
2025-11-21	65.98	67.59	65.90	67.25	+2.64%	5,769,901
2025-11-20	66.73	66.81	64.72	65.52	-0.76%	5,403,137
2025-11-19	66.42	66.52	65.45	66.02	-1.18%	3,903,231
2025-11-18	67.00	67.42	66.22	66.81	-0.28%	3,961,848
2025-11-17	68.05	69.02	66.63	67.00	-1.54%	3,346,156
2025-11-14	68.34	69.06	67.86	68.05	-0.70%	3,648,659
2025-11-13	68.50	69.13	68.25	68.53	-0.71%	4,617,055
2025-11-12	68.27	69.29	67.42	69.02	+0.89%	4,608,810
2025-11-11	67.51	68.67	66.97	68.41	+1.76%	3,683,766
2025-11-10	67.52	67.55	66.27	67.23	-0.43%	3,887,935
2025-11-07	67.38	68.34	66.59	67.52	+0.24%	4,196,327
2025-11-06	70.05	70.56	67.14	67.36	-4.37%	4,764,016
2025-11-05	69.46	70.63	69.21	70.44	+0.93%	3,897,903
2025-11-04	69.65	70.09	68.56	69.79	+0.59%	4,498,511
2025-11-03	67.85	70.24	67.79	69.38	+0.83%	7,955,895
2025-10-31	68.76	69.14	66.41	68.81	-1.19%	7,020,490
2025-10-30	70.66	70.75	68.40	69.64	-1.23%	5,184,631
2025-10-29	72.33	72.50	63.82	70.51	-9.87%	15,475,610
2025-10-28	77.88	78.95	77.39	78.23	+0.14%	3,543,923
2025-10-27	77.89	79.08	77.40	78.12	+0.30%	2,804,469
2025-10-24	78.14	78.72	77.58	77.89	+0.30%	2,142,508
2025-10-23	77.14	77.84	76.43	77.66	+0.61%	1,823,387
2025-10-22	77.00	78.13	76.45	77.19	+0.44%	2,287,172
2025-10-21	74.64	76.98	74.13	76.85	+2.52%	2,897,341
2025-10-20	74.02	75.03	73.92	74.96	+1.31%	1,984,585
2025-10-17	74.18	74.89	73.58	73.99	-0.48%	2,915,982
2025-10-16	75.63	76.32	73.97	74.35	-1.12%	2,427,614
2025-10-15	75.65	75.97	74.26	75.19	-0.71%	2,913,443
2025-10-14	74.56	76.09	74.50	75.73	+0.73%	3,307,603
2025-10-13	76.42	76.42	75.11	75.18	-0.53%	3,160,190
2025-10-10	77.43	77.81	75.39	75.58	-2.51%	3,028,482
2025-10-09	79.00	79.21	77.40	77.53	-1.87%	2,609,738
2025-10-08	80.45	80.55	78.60	79.00	-1.99%	4,221,279
2025-10-07	81.22	81.45	79.80	80.60	-0.68%	2,364,929
2025-10-06	85.11	85.24	80.58	81.15	-4.30%	4,225,129
2025-10-03	84.20	85.08	84.11	84.80	+1.07%	2,671,918
2025-10-02	83.20	84.52	82.58	83.90	+0.50%	2,863,325
2025-10-01	84.22	84.76	82.89	83.48	-1.05%	2,856,338
2025-09-30	84.22	84.86	83.15	84.37	+0.17%	3,583,420
2025-09-29	84.73	84.73	83.66	84.23	+0.29%	2,394,433
2025-09-26	83.09	84.41	82.79	83.99	+1.08%	3,091,205
2025-09-25	84.05	84.42	82.91	83.09	-1.14%	3,275,545
2025-09-24	85.56	85.60	83.86	84.05	-1.48%	2,703,819
2025-09-23	86.32	86.57	85.06	85.31	-1.16%	3,309,883
2025-09-22	86.70	86.99	85.27	86.31	-0.91%	2,828,004
2025-09-19	89.40	89.80	86.92	87.10	-2.42%	5,822,569
2025-09-18	87.91	89.56	87.50	89.26	+1.58%	2,177,142
2025-09-17	88.72	90.72	87.78	87.87	-0.30%	3,011,615
2025-09-16	88.63	88.83	87.22	88.13	-0.94%	2,116,033
2025-09-15	87.14	89.46	87.13	88.97	+2.50%	2,954,115
2025-09-12	86.68	87.39	86.43	86.80	-0.30%	1,261,443
2025-09-11	86.48	87.52	86.19	87.06	+0.88%	2,322,428
2025-09-10	88.26	88.33	85.13	86.30	-2.09%	3,254,024
2025-09-09	87.88	88.74	87.12	88.14	+0.09%	2,625,984
2025-09-08	89.16	91.00	87.84	88.06	-1.56%	2,826,633
2025-09-05	89.77	91.89	89.15	89.46	+0.40%	1,666,570
2025-09-04	88.16	89.16	87.55	89.10	+1.41%	1,652,884
2025-09-03	88.10	88.82	87.35	87.86	-0.30%	2,066,188
2025-09-02	88.87	88.98	87.48	88.12	-1.53%	2,081,151
2025-08-29	90.14	90.54	89.11	89.49	-0.93%	1,974,761
2025-08-28	89.52	90.60	88.71	90.33	+0.98%	1,988,975
2025-08-27	89.12	89.66	88.14	89.45	+0.09%	1,877,535
2025-08-26	90.37	90.58	88.83	89.37	-1.26%	2,247,228
2025-08-25	90.86	91.48	90.29	90.51	-0.78%	1,687,481
2025-08-22	88.52	91.50	88.52	91.22	+3.24%	2,876,277
2025-08-21	87.68	88.66	87.49	88.36	+0.12%	2,065,804
2025-08-20	89.00	89.56	88.21	88.25	-0.79%	2,881,769
2025-08-19	88.23	89.39	87.64	88.95	+0.90%	2,452,159
2025-08-18	89.27	89.50	88.10	88.16	-1.67%	2,725,642
2025-08-15	87.97	89.72	87.72	89.66	+1.92%	2,534,755
2025-08-14	87.34	89.32	87.17	87.97	+0.47%	2,943,620
2025-08-13	89.15	89.30	84.57	87.56	-1.02%	5,494,975
2025-08-12	92.82	92.98	87.78	88.46	-4.37%	5,088,579
2025-08-11	94.23	94.95	92.33	92.50	-2.12%	2,477,861

Most recent 250 sessions, newest first.

Seasonal returns

Best month historically: Nov (+5.97%). Worst month: Feb (-8.87%). Based on 5 years of daily data (2022–2026).

Jan-0.06%
Feb-8.87%
Mar+0.54%
Apr-2.57%
May-5.09%
Jun-0.00%
Jul+3.93%
Aug-2.18%
Sep-3.93%
Oct-2.13%
Nov+5.97%
Dec-4.02%

FAQ · from the current price data · as of 2026-08-07

Quick answers

What is CoStar Group Inc's (CSGP) latest close?

30.24 on 2026-08-07, from the Closelook data lake's daily price record.

What is CSGP's 52-week high and low?

97.12 high and 25.89 low over the trailing 52 weeks, as of 2026-08-07.

What is CoStar Group Inc's strongest and weakest month historically?

Historically, CSGP's strongest calendar month has been Nov (average +5.97%) and its weakest Feb (average -8.87%), based on 5 years of daily data (2022–2026).

How many years of seasonality does this cover?

5 years (2022–2026), computed from 965 daily bars in the Closelook data lake.