5 DAY PERFORMANCE
-12.96%
1 MONTH PERFORMANCE
-13.31%
3 MONTH PERFORMANCE
-22.61%
6 MONTH PERFORMANCE
-31.53%
YEAR-TO-DATE PERFORMANCE
-13.01%
1 YEAR PERFORMANCE
-16.29%
CoStar Group, Inc. Stock Chart
Share Price History
| Date | Opening Price | Closing Price | High | Low | Volume | Market Capitalization |
|---|---|---|---|---|---|---|
| 01/09/2026 | $61.36 | $58.49 (-4.68%) | $61.83 | $58.41 | 7.69 M | $24.56 B |
| 01/08/2026 | $60.61 | $61.36 (1.24%) | $62.89 | $60.19 | 8.34 M | $25.77 B |
| 01/07/2026 | $68.26 | $61.66 (-9.67%) | $68.98 | $61.57 | 13.76 M | $25.89 B |
| 01/06/2026 | $66.02 | $67.20 (1.79%) | $67.64 | $65.23 | 3.14 M | $28.22 B |
| 01/05/2026 | $65.60 | $66.42 (1.25%) | $67.38 | $65.22 | 4.37 M | $27.89 B |
| 01/02/2026 | $67.11 | $65.69 (-2.12%) | $67.22 | $65.22 | 4.37 M | $27.58 B |
| 12/31/2025 | $67.86 | $67.24 (-0.91%) | $67.86 | $67.00 | 2.07 M | $28.23 B |
| 12/30/2025 | $67.24 | $67.86 (0.92%) | $67.96 | $66.97 | 2.68 M | $28.49 B |
| 12/29/2025 | $67.09 | $67.60 (0.76%) | $67.90 | $66.65 | 3.30 M | $28.39 B |
| 12/26/2025 | $66.72 | $67.01 (0.43%) | $67.18 | $66.48 | 2.30 M | $28.14 B |
| 12/24/2025 | $66.34 | $66.89 (0.83%) | $67.27 | $66.30 | 992.80 K | $28.09 B |
| 12/23/2025 | $66.60 | $66.64 (0.06%) | $66.88 | $65.79 | 2.72 M | $27.98 B |
| 12/22/2025 | $65.12 | $66.60 (2.27%) | $66.69 | $64.97 | 4.61 M | $27.97 B |
| 12/19/2025 | $64.41 | $65.23 (1.27%) | $65.84 | $63.99 | 9.58 M | $27.39 B |
| 12/18/2025 | $65.01 | $64.88 (-0.2%) | $65.50 | $64.65 | 5.13 M | $27.24 B |
| 12/17/2025 | $63.62 | $64.83 (1.9%) | $65.08 | $63.60 | 5.37 M | $27.22 B |
| 12/16/2025 | $64.00 | $63.62 (-0.59%) | $64.89 | $63.36 | 4.76 M | $26.71 B |
| 12/15/2025 | $68.25 | $63.75 (-6.59%) | $68.25 | $62.00 | 8.31 M | $26.77 B |
| 12/12/2025 | $67.92 | $68.23 (0.46%) | $68.51 | $67.74 | 3.15 M | $28.65 B |
| 12/11/2025 | $67.76 | $67.47 (-0.43%) | $68.50 | $67.16 | 3.41 M | $28.33 B |
| 12/10/2025 | $67.80 | $67.87 (0.1%) | $68.58 | $67.29 | 2.74 M | $28.50 B |
| 12/09/2025 | $66.52 | $67.93 (2.12%) | $68.49 | $66.34 | 2.77 M | $28.52 B |
| 12/08/2025 | $67.92 | $66.33 (-2.34%) | $67.95 | $66.08 | 3.43 M | $27.85 B |
| 12/05/2025 | $67.81 | $68.01 (0.29%) | $68.77 | $67.47 | 2.95 M | $28.56 B |
| 12/04/2025 | $69.00 | $68.19 (-1.17%) | $69.06 | $68.08 | 2.33 M | $28.63 B |
| 12/03/2025 | $68.22 | $69.02 (1.17%) | $69.12 | $68.03 | 2.45 M | $28.98 B |
| 12/02/2025 | $68.33 | $68.20 (-0.19%) | $68.64 | $67.49 | 3.12 M | $28.64 B |
| 12/01/2025 | $67.97 | $68.02 (0.07%) | $69.30 | $67.85 | 3.03 M | $28.56 B |
| 11/28/2025 | $68.44 | $68.80 (0.53%) | $68.90 | $67.74 | 1.81 M | $28.89 B |
| 11/26/2025 | $68.75 | $67.82 (-1.35%) | $69.12 | $67.78 | 3.29 M | $28.48 B |
| 11/25/2025 | $67.98 | $69.20 (1.79%) | $69.36 | $67.16 | 3.75 M | $29.06 B |
| 11/24/2025 | $67.42 | $67.55 (0.19%) | $68.27 | $66.94 | 10.98 M | $28.36 B |
| 11/21/2025 | $65.98 | $67.25 (1.92%) | $67.59 | $65.90 | 5.77 M | $28.24 B |
| 11/20/2025 | $66.73 | $65.52 (-1.81%) | $66.81 | $64.72 | 5.40 M | $27.51 B |
| 11/19/2025 | $66.43 | $66.02 (-0.62%) | $66.52 | $65.45 | 3.90 M | $27.72 B |
| 11/18/2025 | $67.00 | $66.81 (-0.28%) | $67.42 | $66.22 | 3.96 M | $28.05 B |
| 11/17/2025 | $68.05 | $67.00 (-1.54%) | $69.02 | $66.63 | 3.35 M | $28.13 B |
| 11/14/2025 | $68.34 | $68.05 (-0.42%) | $69.06 | $67.86 | 3.65 M | $28.57 B |
| 11/13/2025 | $68.50 | $68.53 (0.04%) | $69.13 | $68.26 | 4.62 M | $28.78 B |
| 11/12/2025 | $68.27 | $69.02 (1.1%) | $69.29 | $67.42 | 4.61 M | $28.98 B |
| 11/11/2025 | $67.51 | $68.41 (1.33%) | $68.68 | $66.97 | 3.68 M | $28.73 B |
| 11/10/2025 | $67.52 | $67.23 (-0.43%) | $67.55 | $66.27 | 3.89 M | $28.23 B |
| 11/07/2025 | $67.38 | $67.52 (0.21%) | $68.34 | $66.59 | 4.20 M | $28.35 B |
| 11/06/2025 | $70.05 | $67.36 (-3.84%) | $70.56 | $67.14 | 4.76 M | $28.28 B |
| 11/05/2025 | $69.46 | $70.44 (1.41%) | $70.63 | $69.21 | 3.90 M | $29.58 B |
| 11/04/2025 | $69.65 | $69.79 (0.2%) | $70.09 | $68.57 | 4.50 M | $29.30 B |
| 11/03/2025 | $67.85 | $69.38 (2.25%) | $70.24 | $67.79 | 7.96 M | $29.13 B |
| 10/31/2025 | $68.76 | $68.81 (0.07%) | $69.14 | $66.41 | 7.02 M | $28.89 B |
| 10/30/2025 | $70.66 | $69.64 (-1.44%) | $70.76 | $68.40 | 5.18 M | $29.24 B |
| 10/29/2025 | $72.33 | $70.51 (-2.52%) | $72.50 | $63.82 | 15.48 M | $29.61 B |
| 10/28/2025 | $77.88 | $78.23 (0.45%) | $78.95 | $77.40 | 3.54 M | $32.85 B |
| 10/27/2025 | $77.89 | $78.12 (0.3%) | $79.08 | $77.40 | 2.80 M | $32.80 B |
| 10/24/2025 | $78.14 | $77.89 (-0.32%) | $78.72 | $77.58 | 2.14 M | $32.68 B |
| 10/23/2025 | $77.14 | $77.66 (0.67%) | $77.84 | $76.43 | 1.82 M | $32.59 B |
| 10/22/2025 | $77.00 | $77.19 (0.25%) | $78.13 | $76.46 | 2.29 M | $32.39 B |
| 10/21/2025 | $74.64 | $76.85 (2.96%) | $76.98 | $74.13 | 2.90 M | $32.25 B |
| 10/20/2025 | $74.02 | $74.96 (1.27%) | $75.03 | $73.92 | 1.98 M | $31.45 B |
| 10/17/2025 | $74.18 | $73.99 (-0.26%) | $74.89 | $73.58 | 2.92 M | $31.05 B |
| 10/16/2025 | $75.63 | $74.35 (-1.69%) | $76.32 | $73.97 | 2.43 M | $31.20 B |
| 10/15/2025 | $75.65 | $75.19 (-0.61%) | $75.97 | $74.26 | 2.91 M | $31.55 B |
| 10/14/2025 | $74.56 | $75.73 (1.57%) | $76.09 | $74.50 | 3.31 M | $31.78 B |
| 10/13/2025 | $76.42 | $75.18 (-1.62%) | $76.42 | $75.11 | 3.16 M | $31.55 B |
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