Options Chain for COSTAR GROUP INC COM (CSGP) - $30.23 as of 8/7/2026 7:55:44 PM EST
Calls
| Strike | Bid | Ask | Premium | Last Price | Change | %Chg | Premium to Strike Price Ratio | Volume | Open Interest | IV | Delta | Gamma | Theta | Last Trade | Last Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15.00 | 14.30 | 16.40 | 15.35 | 13.40 | 0.00 | 0.00% | 1.02 | 0 | 6 | 1.55 | 1.00 | 0.00 | 0.00 | 7/22/2026 | 8/7/2026 3:59:56 PM EST |
| 17.50 | 12.70 | 14.00 | 13.35 | % | 0.76 | 0 | 0 | 1.31 | 0.98 | 0.00 | -0.01 | 8/7/2026 3:59:56 PM EST | |||
| 20.00 | 10.40 | 11.50 | 10.95 | 10.40 | 0.00 | 0.00% | 0.55 | 0 | 2 | 0.68 | 0.95 | 0.01 | -0.01 | 8/4/2026 | 8/7/2026 3:59:56 PM EST |
| 22.50 | 6.90 | 10.40 | 8.65 | 8.82 | +0.82 | +10.25% | 0.38 | 2 | 1 | 1.24 | 0.90 | 0.02 | -0.01 | 8/7/2026 | 8/7/2026 3:59:56 PM EST |
| 25.00 | 6.00 | 6.70 | 6.35 | 6.40 | +0.30 | +4.92% | 0.25 | 6 | 2 | 0.58 | 0.82 | 0.03 | -0.02 | 8/7/2026 | 8/7/2026 3:59:56 PM EST |
| 30.00 | 2.80 | 3.40 | 3.10 | 3.77 | +0.82 | +27.80% | 0.10 | 1 | 663 | 0.54 | 0.58 | 0.05 | -0.02 | 8/7/2026 | 8/7/2026 3:59:56 PM EST |
| 35.00 | 1.15 | 1.75 | 1.45 | 1.40 | +0.20 | +16.67% | 0.04 | 31 | 458 | 0.56 | 0.33 | 0.05 | -0.02 | 8/7/2026 | 8/7/2026 3:59:56 PM EST |
| 40.00 | 0.45 | 0.80 | 0.63 | 0.60 | -0.05 | -7.70% | 0.02 | 40 | 469 | 0.57 | 0.19 | 0.03 | -0.02 | 8/7/2026 | 8/7/2026 3:59:56 PM EST |
| 45.00 | 0.25 | 0.45 | 0.35 | 0.25 | 0.00 | 0.00% | 0.01 | 0 | 233 | 0.62 | 0.12 | 0.02 | -0.01 | 7/31/2026 | 8/7/2026 3:59:56 PM EST |
| 50.00 | 0.15 | 0.60 | 0.38 | 0.25 | 0.00 | 0.00% | 0.01 | 0 | 79 | 0.74 | 0.06 | 0.01 | -0.01 | 8/5/2026 | 8/7/2026 3:59:56 PM EST |
| 55.00 | 0.10 | 0.40 | 0.25 | 0.20 | 0.00 | 0.00% | 0.00 | 0 | 9 | 0.87 | 0.03 | 0.01 | 0.00 | 8/6/2026 | 8/7/2026 3:59:56 PM EST |
| 60.00 | 0.00 | 0.60 | 0.30 | 0.05 | 0.00 | 0.00% | 0.01 | 0 | 10 | 1.05 | 0.01 | 0.00 | 0.00 | 7/9/2026 | 8/7/2026 3:59:56 PM EST |
| 65.00 | 0.00 | 0.55 | 0.28 | % | 0.00 | 0 | 5 | 1.12 | 0.01 | 0.00 | 0.00 | 8/7/2026 3:59:56 PM EST | |||
| 70.00 | 0.00 | 0.50 | 0.25 | 0.20 | 0.00 | 0.00% | 0.00 | 0 | 63 | 1.17 | 0.00 | 0.00 | 0.00 | 7/6/2026 | 8/7/2026 3:59:56 PM EST |
Puts
| Strike | Bid | Ask | Premium | Last Price | Change | %Chg | Premium to Strike Price Ratio | Volume | Open Interest | IV | Delta | Gamma | Theta | Last Trade | Last Updated |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 15.00 | 0.00 | 0.60 | 0.30 | 0.12 | 0.00 | 0.00% | 0.02 | 0 | 8 | 1.30 | 0.00 | 0.00 | 0.00 | 7/20/2026 | 8/7/2026 3:59:56 PM EST |
| 17.50 | 0.00 | 0.30 | 0.15 | 0.35 | 0.00 | 0.00% | 0.01 | 0 | 1 | 0.89 | -0.02 | 0.00 | -0.01 | 8/4/2026 | 8/7/2026 3:59:56 PM EST |
| 20.00 | 0.05 | 0.50 | 0.28 | 0.17 | -0.47 | -73.44% | 0.01 | 1 | 10 | 0.66 | -0.05 | 0.01 | -0.01 | 8/7/2026 | 8/7/2026 3:59:56 PM EST |
| 22.50 | 0.30 | 0.80 | 0.55 | 0.37 | -0.13 | -26.00% | 0.02 | 50 | 90 | 0.65 | -0.10 | 0.02 | -0.01 | 8/7/2026 | 8/7/2026 3:59:56 PM EST |
| 25.00 | 0.70 | 0.95 | 0.83 | 0.75 | -0.25 | -25.00% | 0.03 | 3,612 | 627 | 0.57 | -0.18 | 0.03 | -0.02 | 8/7/2026 | 8/7/2026 3:59:56 PM EST |
| 30.00 | 2.45 | 2.90 | 2.68 | 2.55 | -0.30 | -10.53% | 0.09 | 101 | 468 | 0.56 | -0.42 | 0.05 | -0.02 | 8/7/2026 | 8/7/2026 3:59:56 PM EST |
| 35.00 | 5.20 | 6.50 | 5.85 | 5.84 | 0.00 | 0.00% | 0.17 | 0 | 823 | 0.54 | -0.67 | 0.05 | -0.02 | 8/5/2026 | 8/7/2026 3:59:56 PM EST |
| 40.00 | 10.00 | 10.30 | 10.15 | 12.22 | 0.00 | 0.00% | 0.25 | 0 | 210 | 0.58 | -0.81 | 0.03 | -0.02 | 6/30/2026 | 8/7/2026 3:59:56 PM EST |
| 45.00 | 13.70 | 15.70 | 14.70 | 16.55 | 0.00 | 0.00% | 0.33 | 0 | 121 | 0.90 | -0.88 | 0.02 | -0.01 | 7/30/2026 | 8/7/2026 3:59:56 PM EST |
| 50.00 | 18.40 | 20.10 | 19.25 | 15.90 | 0.00 | 0.00% | 0.39 | 0 | 45 | 0.84 | -0.94 | 0.01 | -0.01 | 5/6/2026 | 8/7/2026 3:59:56 PM EST |
| 55.00 | 23.80 | 25.90 | 24.85 | % | 0.45 | 0 | 0 | 1.23 | -0.97 | 0.01 | 0.00 | 8/7/2026 3:59:56 PM EST | |||
| 60.00 | 28.80 | 30.80 | 29.80 | % | 0.50 | 0 | 0 | 1.31 | -0.99 | 0.00 | 0.00 | 8/7/2026 3:59:56 PM EST | |||
| 65.00 | 33.70 | 35.60 | 34.65 | % | 0.53 | 0 | 0 | 1.35 | -0.99 | 0.00 | 0.00 | 8/7/2026 3:59:56 PM EST | |||
| 70.00 | 38.70 | 40.80 | 39.75 | % | 0.57 | 0 | 0 | 1.50 | -1.00 | 0.00 | 0.00 | 8/7/2026 3:59:56 PM EST |