5 DAY PERFORMANCE
+83.64%
1 MONTH PERFORMANCE
+69.98%
3 MONTH PERFORMANCE
+72.25%
6 MONTH PERFORMANCE
+34.73%
YEAR-TO-DATE PERFORMANCE
-25.22%
1 YEAR PERFORMANCE
-35.15%
Costar Group, Inc. Stock Chart
Share Price History
| Date | Opening Price | Closing Price | High | Low | Volume | Market Capitalization |
|---|---|---|---|---|---|---|
| 10/09/2026 | $30.02 | $29.66 (-1.22%) | $30.16 | $29.62 | 2.83 M | $12.06 B |
| 10/08/2026 | $27.60 | $29.81 (8.01%) | $29.83 | $27.58 | 9.47 M | $12.05 B |
| 10/07/2026 | $27.77 | $27.60 (-0.61%) | $27.87 | $27.17 | 4.95 M | $11.15 B |
| 10/06/2026 | $27.70 | $27.63 (-0.25%) | $28.20 | $27.46 | 4.58 M | $11.17 B |
| 10/05/2026 | $27.25 | $27.66 (1.5%) | $27.68 | $27.18 | 4.93 M | $11.18 B |
| 10/02/2026 | $27.48 | $27.38 (-0.36%) | $27.81 | $27.15 | 3.74 M | $11.06 B |
| 10/01/2026 | $27.91 | $27.72 (-0.68%) | $28.23 | $27.10 | 4.63 M | $11.20 B |
| 09/30/2026 | $27.03 | $27.40 (1.37%) | $27.55 | $26.86 | 6.69 M | $11.07 B |
| 09/29/2026 | $26.84 | $26.95 (0.41%) | $27.18 | $26.52 | 5.19 M | $10.89 B |
| 09/28/2026 | $27.68 | $27.02 (-2.38%) | $27.75 | $26.85 | 5.18 M | $10.92 B |
| 09/25/2026 | $27.73 | $28.09 (1.3%) | $28.63 | $27.60 | 6.66 M | $11.35 B |
| 09/24/2026 | $28.18 | $27.86 (-1.14%) | $28.54 | $27.28 | 6.50 M | $11.26 B |
| 09/23/2026 | $28.69 | $28.26 (-1.5%) | $28.69 | $27.89 | 5.67 M | $11.42 B |
| 09/22/2026 | $29.63 | $28.77 (-2.9%) | $29.63 | $28.31 | 5.28 M | $11.63 B |
| 09/21/2026 | $29.24 | $29.04 (-0.68%) | $29.64 | $28.84 | 7.10 M | $11.74 B |
| 09/18/2026 | $29.30 | $29.09 (-0.72%) | $29.91 | $28.96 | 17.12 M | $11.76 B |
| 09/17/2026 | $30.48 | $29.30 (-3.87%) | $30.59 | $29.24 | 4.86 M | $11.84 B |
| 09/16/2026 | $31.25 | $30.36 (-2.85%) | $31.43 | $30.27 | 4.67 M | $12.27 B |
| 09/15/2026 | $31.15 | $31.56 (1.32%) | $31.79 | $30.70 | 6.72 M | $12.75 B |
| 09/14/2026 | $31.17 | $31.52 (1.12%) | $31.83 | $30.75 | 5.80 M | $12.74 B |
| 09/11/2026 | $29.72 | $30.46 (2.49%) | $30.60 | $29.71 | 6.20 M | $12.31 B |
| 09/10/2026 | $29.64 | $29.49 (-0.51%) | $30.14 | $28.79 | 7.24 M | $11.92 B |
| 09/09/2026 | $30.02 | $29.58 (-1.47%) | $30.29 | $29.33 | 4.45 M | $11.95 B |
| 09/08/2026 | $30.55 | $30.34 (-0.69%) | $30.63 | $29.66 | 6.13 M | $12.26 B |
| 09/04/2026 | $31.25 | $30.91 (-1.09%) | $31.33 | $30.32 | 3.88 M | $12.49 B |
| 09/03/2026 | $31.84 | $31.68 (-0.5%) | $32.79 | $31.22 | 4.54 M | $12.80 B |
| 09/02/2026 | $31.97 | $31.26 (-2.22%) | $32.65 | $31.20 | 5.17 M | $12.63 B |
| 09/01/2026 | $32.00 | $31.98 (-0.06%) | $32.46 | $31.40 | 6.14 M | $12.92 B |
| 08/31/2026 | $31.95 | $32.07 (0.38%) | $32.59 | $31.79 | 33.46 M | $12.96 B |
| 08/28/2026 | $31.71 | $32.22 (1.61%) | $32.59 | $31.45 | 4.34 M | $13.02 B |
| 08/27/2026 | $32.05 | $31.34 (-2.22%) | $32.49 | $31.29 | 5.43 M | $12.66 B |
| 08/26/2026 | $32.31 | $32.14 (-0.53%) | $32.92 | $31.74 | 4.80 M | $12.99 B |
| 08/25/2026 | $32.59 | $32.81 (0.68%) | $33.28 | $32.25 | 4.92 M | $13.26 B |
| 08/24/2026 | $32.52 | $32.84 (0.98%) | $32.90 | $32.29 | 5.04 M | $13.27 B |
| 08/21/2026 | $32.51 | $32.26 (-0.77%) | $33.26 | $31.99 | 4.75 M | $13.04 B |
| 08/20/2026 | $33.46 | $32.26 (-3.59%) | $33.63 | $31.72 | 6.62 M | $13.04 B |
| 08/19/2026 | $31.28 | $33.73 (7.83%) | $33.82 | $31.20 | 5.82 M | $13.63 B |
| 08/18/2026 | $32.03 | $31.38 (-2.03%) | $32.30 | $31.30 | 3.85 M | $12.68 B |
| 08/17/2026 | $31.95 | $31.35 (-1.88%) | $32.15 | $30.99 | 4.94 M | $12.67 B |
| 08/14/2026 | $33.28 | $32.38 (-2.7%) | $33.30 | $31.86 | 6.00 M | $13.08 B |
| 08/13/2026 | $30.68 | $33.05 (7.72%) | $33.10 | $30.68 | 7.97 M | $13.36 B |
| 08/12/2026 | $30.65 | $30.50 (-0.49%) | $31.08 | $30.22 | 4.28 M | $12.33 B |
| 08/11/2026 | $31.25 | $31.12 (-0.42%) | $31.52 | $30.65 | 4.04 M | $12.58 B |
| 08/10/2026 | $30.04 | $31.48 (4.79%) | $31.49 | $30.04 | 6.16 M | $12.72 B |
| 08/07/2026 | $30.05 | $30.24 (0.63%) | $31.68 | $30.04 | 6.21 M | $12.22 B |
| 08/06/2026 | $29.89 | $29.58 (-1.04%) | $30.22 | $29.27 | 7.81 M | $11.95 B |
| 08/05/2026 | $30.61 | $30.21 (-1.31%) | $30.75 | $29.53 | 6.64 M | $12.21 B |
| 08/04/2026 | $29.42 | $29.82 (1.36%) | $30.07 | $29.35 | 5.79 M | $12.05 B |
| 08/03/2026 | $29.47 | $30.03 (1.9%) | $30.18 | $29.26 | 6.03 M | $12.14 B |
| 07/31/2026 | $29.02 | $28.76 (-0.9%) | $29.38 | $28.38 | 8.23 M | $11.62 B |
| 07/30/2026 | $28.27 | $29.46 (4.21%) | $29.57 | $28.13 | 12.13 M | $11.90 B |
| 07/29/2026 | $26.03 | $29.83 (14.6%) | $30.45 | $25.89 | 17.58 M | $12.05 B |
| 07/28/2026 | $29.90 | $30.33 (1.44%) | $31.40 | $29.75 | 9.82 M | $12.26 B |
| 07/27/2026 | $28.05 | $29.17 (3.99%) | $29.92 | $28.04 | 9.80 M | $11.79 B |
| 07/24/2026 | $27.28 | $27.66 (1.39%) | $28.09 | $27.09 | 6.85 M | $11.42 B |
| 07/23/2026 | $27.89 | $27.14 (-2.69%) | $28.03 | $26.77 | 7.16 M | $11.21 B |
| 07/22/2026 | $28.76 | $27.69 (-3.72%) | $28.92 | $27.48 | 5.64 M | $11.44 B |
| 07/21/2026 | $28.63 | $28.50 (-0.45%) | $29.39 | $28.34 | 5.58 M | $11.77 B |
| 07/20/2026 | $29.50 | $29.68 (0.61%) | $29.90 | $28.85 | 6.35 M | $12.26 B |
| 07/17/2026 | $30.64 | $29.78 (-2.81%) | $31.01 | $29.59 | 5.90 M | $12.30 B |
| 07/16/2026 | $29.07 | $30.37 (4.47%) | $30.52 | $28.96 | 8.94 M | $12.54 B |
| 07/15/2026 | $28.04 | $28.49 (1.6%) | $29.25 | $27.96 | 7.34 M | $11.77 B |
| 07/14/2026 | $27.00 | $27.68 (2.52%) | $28.00 | $26.68 | 14.09 M | $11.43 B |
| 07/13/2026 | $28.88 | $28.77 (-0.38%) | $29.38 | $28.22 | 6.45 M | $11.88 B |
| 07/10/2026 | $29.67 | $28.39 (-4.31%) | $30.05 | $28.09 | 5.92 M | $11.73 B |
| 07/09/2026 | $28.86 | $29.19 (1.14%) | $29.35 | $28.44 | 4.96 M | $12.06 B |
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