CoStar Group, Inc. (CSGP)
NASDAQ: CSGP · Real-Time Price · USD
76.71
+1.75 (2.33%)
Oct 21, 2025, 3:50 PM EDT - Market open

CoStar Group Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Oct 21, 202574.6476.5074.1376.41-1.93%1,240,871
Oct 20, 202574.0275.0373.9274.9674.961.31%1,984,585
Oct 17, 202574.1874.8973.5873.9973.99-0.48%2,915,982
Oct 16, 202575.6376.3273.9774.3574.35-1.12%2,427,614
Oct 15, 202575.6575.9774.2675.1975.19-0.71%2,913,443
Oct 14, 202574.5676.0974.5075.7375.730.73%3,307,603
Oct 13, 202576.4276.4275.1275.1875.18-0.53%3,160,190
Oct 10, 202577.4377.8275.3975.5875.58-2.51%3,028,482
Oct 9, 202579.0179.2177.4077.5377.53-1.87%2,609,738
Oct 8, 202580.4580.5578.6079.0079.00-1.99%4,221,279
Oct 7, 202581.2281.4579.8080.6080.60-0.68%2,364,929
Oct 6, 202585.1185.2480.5881.1581.15-4.30%4,225,129
Oct 3, 202584.2085.0884.1184.8084.801.07%2,671,918
Oct 2, 202583.2084.5282.5883.9083.900.50%2,863,325
Oct 1, 202584.2284.7682.9083.4883.48-1.05%2,856,338
Sep 30, 202584.2284.8683.1584.3784.370.17%3,583,420
Sep 29, 202584.7384.7383.6684.2384.230.29%2,394,433
Sep 26, 202583.0984.4182.8083.9983.991.08%3,091,205
Sep 25, 202584.0584.4282.9183.0983.09-1.14%3,275,545
Sep 24, 202585.5685.6083.8684.0584.05-1.48%2,703,819
Sep 23, 202586.3286.5785.0685.3185.31-1.16%3,309,883
Sep 22, 202586.7086.9985.2786.3186.31-0.91%2,828,004
Sep 19, 202589.4089.8086.9287.1087.10-2.42%5,822,569
Sep 18, 202587.9189.5687.5189.2689.261.58%2,177,142
Sep 17, 202588.7290.7287.7887.8787.87-0.30%3,011,615
Sep 16, 202588.6388.8487.2288.1388.13-0.94%2,116,033
Sep 15, 202587.1489.4687.1388.9788.972.50%2,954,115
Sep 12, 202586.6887.3986.4386.8086.80-0.30%1,261,443
Sep 11, 202586.4887.5286.1987.0687.060.88%2,322,428
Sep 10, 202588.2688.3385.1386.3086.30-2.09%3,254,024
Sep 9, 202587.8888.7487.1288.1488.140.09%2,625,984
Sep 8, 202589.1691.0187.8488.0688.06-1.56%2,826,633
Sep 5, 202589.7791.8989.1589.4689.460.40%1,666,570
Sep 4, 202588.1689.1687.5589.1089.101.41%1,652,884
Sep 3, 202588.1088.8287.3587.8687.86-0.30%1,981,011
Sep 2, 202588.8788.9887.4888.1288.12-1.53%2,081,151
Aug 29, 202590.1490.5489.1189.4989.49-0.93%1,974,761
Aug 28, 202589.5290.6088.7190.3390.330.98%1,988,975
Aug 27, 202589.1289.6688.1489.4589.450.09%1,877,535
Aug 26, 202590.3790.5988.8389.3789.37-1.26%2,247,228
Aug 25, 202590.8691.4890.2990.5190.51-0.78%1,687,481
Aug 22, 202588.5291.5088.5291.2291.223.24%2,876,277
Aug 21, 202587.6888.6687.4988.3688.360.12%2,065,804
Aug 20, 202589.0089.5688.2188.2588.25-0.79%2,881,769
Aug 19, 202588.2389.4087.6588.9588.950.90%2,452,159
Aug 18, 202589.2789.5088.1088.1688.16-1.67%2,725,642
Aug 15, 202587.9789.7287.7389.6689.661.92%2,534,755
Aug 14, 202587.3489.3287.1787.9787.970.47%2,943,620
Aug 13, 202589.1589.3084.5787.5687.56-1.02%5,494,975
Aug 12, 202592.8292.9987.7888.4688.46-4.37%5,088,579