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
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 21, 2025 | 74.64 | 76.50 | 74.13 | 76.41 | - | 1.93% | 1,240,871 |
| Oct 20, 2025 | 74.02 | 75.03 | 73.92 | 74.96 | 74.96 | 1.31% | 1,984,585 |
| Oct 17, 2025 | 74.18 | 74.89 | 73.58 | 73.99 | 73.99 | -0.48% | 2,915,982 |
| Oct 16, 2025 | 75.63 | 76.32 | 73.97 | 74.35 | 74.35 | -1.12% | 2,427,614 |
| Oct 15, 2025 | 75.65 | 75.97 | 74.26 | 75.19 | 75.19 | -0.71% | 2,913,443 |
| Oct 14, 2025 | 74.56 | 76.09 | 74.50 | 75.73 | 75.73 | 0.73% | 3,307,603 |
| Oct 13, 2025 | 76.42 | 76.42 | 75.12 | 75.18 | 75.18 | -0.53% | 3,160,190 |
| Oct 10, 2025 | 77.43 | 77.82 | 75.39 | 75.58 | 75.58 | -2.51% | 3,028,482 |
| Oct 9, 2025 | 79.01 | 79.21 | 77.40 | 77.53 | 77.53 | -1.87% | 2,609,738 |
| Oct 8, 2025 | 80.45 | 80.55 | 78.60 | 79.00 | 79.00 | -1.99% | 4,221,279 |
| Oct 7, 2025 | 81.22 | 81.45 | 79.80 | 80.60 | 80.60 | -0.68% | 2,364,929 |
| Oct 6, 2025 | 85.11 | 85.24 | 80.58 | 81.15 | 81.15 | -4.30% | 4,225,129 |
| Oct 3, 2025 | 84.20 | 85.08 | 84.11 | 84.80 | 84.80 | 1.07% | 2,671,918 |
| Oct 2, 2025 | 83.20 | 84.52 | 82.58 | 83.90 | 83.90 | 0.50% | 2,863,325 |
| Oct 1, 2025 | 84.22 | 84.76 | 82.90 | 83.48 | 83.48 | -1.05% | 2,856,338 |
| Sep 30, 2025 | 84.22 | 84.86 | 83.15 | 84.37 | 84.37 | 0.17% | 3,583,420 |
| Sep 29, 2025 | 84.73 | 84.73 | 83.66 | 84.23 | 84.23 | 0.29% | 2,394,433 |
| Sep 26, 2025 | 83.09 | 84.41 | 82.80 | 83.99 | 83.99 | 1.08% | 3,091,205 |
| Sep 25, 2025 | 84.05 | 84.42 | 82.91 | 83.09 | 83.09 | -1.14% | 3,275,545 |
| Sep 24, 2025 | 85.56 | 85.60 | 83.86 | 84.05 | 84.05 | -1.48% | 2,703,819 |
| Sep 23, 2025 | 86.32 | 86.57 | 85.06 | 85.31 | 85.31 | -1.16% | 3,309,883 |
| Sep 22, 2025 | 86.70 | 86.99 | 85.27 | 86.31 | 86.31 | -0.91% | 2,828,004 |
| Sep 19, 2025 | 89.40 | 89.80 | 86.92 | 87.10 | 87.10 | -2.42% | 5,822,569 |
| Sep 18, 2025 | 87.91 | 89.56 | 87.51 | 89.26 | 89.26 | 1.58% | 2,177,142 |
| Sep 17, 2025 | 88.72 | 90.72 | 87.78 | 87.87 | 87.87 | -0.30% | 3,011,615 |
| Sep 16, 2025 | 88.63 | 88.84 | 87.22 | 88.13 | 88.13 | -0.94% | 2,116,033 |
| Sep 15, 2025 | 87.14 | 89.46 | 87.13 | 88.97 | 88.97 | 2.50% | 2,954,115 |
| Sep 12, 2025 | 86.68 | 87.39 | 86.43 | 86.80 | 86.80 | -0.30% | 1,261,443 |
| Sep 11, 2025 | 86.48 | 87.52 | 86.19 | 87.06 | 87.06 | 0.88% | 2,322,428 |
| Sep 10, 2025 | 88.26 | 88.33 | 85.13 | 86.30 | 86.30 | -2.09% | 3,254,024 |
| Sep 9, 2025 | 87.88 | 88.74 | 87.12 | 88.14 | 88.14 | 0.09% | 2,625,984 |
| Sep 8, 2025 | 89.16 | 91.01 | 87.84 | 88.06 | 88.06 | -1.56% | 2,826,633 |
| Sep 5, 2025 | 89.77 | 91.89 | 89.15 | 89.46 | 89.46 | 0.40% | 1,666,570 |
| Sep 4, 2025 | 88.16 | 89.16 | 87.55 | 89.10 | 89.10 | 1.41% | 1,652,884 |
| Sep 3, 2025 | 88.10 | 88.82 | 87.35 | 87.86 | 87.86 | -0.30% | 1,981,011 |
| Sep 2, 2025 | 88.87 | 88.98 | 87.48 | 88.12 | 88.12 | -1.53% | 2,081,151 |
| Aug 29, 2025 | 90.14 | 90.54 | 89.11 | 89.49 | 89.49 | -0.93% | 1,974,761 |
| Aug 28, 2025 | 89.52 | 90.60 | 88.71 | 90.33 | 90.33 | 0.98% | 1,988,975 |
| Aug 27, 2025 | 89.12 | 89.66 | 88.14 | 89.45 | 89.45 | 0.09% | 1,877,535 |
| Aug 26, 2025 | 90.37 | 90.59 | 88.83 | 89.37 | 89.37 | -1.26% | 2,247,228 |
| Aug 25, 2025 | 90.86 | 91.48 | 90.29 | 90.51 | 90.51 | -0.78% | 1,687,481 |
| Aug 22, 2025 | 88.52 | 91.50 | 88.52 | 91.22 | 91.22 | 3.24% | 2,876,277 |
| Aug 21, 2025 | 87.68 | 88.66 | 87.49 | 88.36 | 88.36 | 0.12% | 2,065,804 |
| Aug 20, 2025 | 89.00 | 89.56 | 88.21 | 88.25 | 88.25 | -0.79% | 2,881,769 |
| Aug 19, 2025 | 88.23 | 89.40 | 87.65 | 88.95 | 88.95 | 0.90% | 2,452,159 |
| Aug 18, 2025 | 89.27 | 89.50 | 88.10 | 88.16 | 88.16 | -1.67% | 2,725,642 |
| Aug 15, 2025 | 87.97 | 89.72 | 87.73 | 89.66 | 89.66 | 1.92% | 2,534,755 |
| Aug 14, 2025 | 87.34 | 89.32 | 87.17 | 87.97 | 87.97 | 0.47% | 2,943,620 |
| Aug 13, 2025 | 89.15 | 89.30 | 84.57 | 87.56 | 87.56 | -1.02% | 5,494,975 |
| Aug 12, 2025 | 92.82 | 92.99 | 87.78 | 88.46 | 88.46 | -4.37% | 5,088,579 |