Options Chain for COSTAR GROUP INC COM (CSGP) - $32.26 as of 8/24/2026 1:51:15 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 | 16.60 | 19.00 | 17.80 | 13.40 | 0.00 | 0.00% | 1.19 | 0 | 6 | 1.84 | 1.00 | 0.00 | 0.00 | 7/22/2026 | 8/24/2026 4:00:03 PM EST |
| 17.50 | 14.10 | 16.50 | 15.30 | % | 0.87 | 0 | 0 | 1.58 | 1.00 | 0.00 | 0.00 | 8/24/2026 4:00:03 PM EST | |||
| 20.00 | 11.80 | 14.00 | 12.90 | 10.40 | 0.00 | 0.00% | 0.65 | 0 | 2 | 1.31 | 1.00 | 0.00 | 0.00 | 8/4/2026 | 8/24/2026 4:00:03 PM EST |
| 22.50 | 9.40 | 12.20 | 10.80 | 9.61 | 0.00 | 0.00% | 0.48 | 0 | 3 | 1.32 | 0.98 | 0.01 | -0.01 | 8/18/2026 | 8/24/2026 4:00:03 PM EST |
| 25.00 | 7.70 | 9.10 | 8.40 | 7.75 | 0.00 | 0.00% | 0.34 | 0 | 9 | 0.89 | 0.93 | 0.02 | -0.01 | 8/20/2026 | 8/24/2026 4:00:03 PM EST |
| 30.00 | 3.80 | 4.60 | 4.20 | 4.09 | +0.39 | +10.55% | 0.14 | 20 | 697 | 0.48 | 0.74 | 0.05 | -0.02 | 8/24/2026 | 8/24/2026 4:00:03 PM EST |
| 35.00 | 1.50 | 1.85 | 1.68 | 1.55 | +0.01 | +0.65% | 0.05 | 266 | 510 | 0.48 | 0.43 | 0.06 | -0.02 | 8/24/2026 | 8/24/2026 4:00:03 PM EST |
| 40.00 | 0.55 | 0.90 | 0.73 | 0.60 | -0.01 | -1.64% | 0.02 | 22 | 694 | 0.54 | 0.20 | 0.04 | -0.02 | 8/24/2026 | 8/24/2026 4:00:03 PM EST |
| 45.00 | 0.20 | 0.25 | 0.23 | 0.30 | 0.00 | 0.00% | 0.01 | 0 | 235 | 0.53 | 0.08 | 0.02 | -0.01 | 8/21/2026 | 8/24/2026 4:00:03 PM EST |
| 50.00 | 0.00 | 0.60 | 0.30 | 0.15 | 0.00 | 0.00% | 0.01 | 0 | 79 | 0.84 | 0.03 | 0.01 | 0.00 | 8/12/2026 | 8/24/2026 4:00:03 PM EST |
| 55.00 | 0.00 | 0.60 | 0.30 | 0.15 | 0.00 | 0.00% | 0.01 | 0 | 9 | 0.97 | 0.01 | 0.00 | 0.00 | 8/19/2026 | 8/24/2026 4:00:03 PM EST |
| 60.00 | 0.00 | 0.55 | 0.28 | 0.05 | 0.00 | 0.00% | 0.00 | 0 | 10 | 1.06 | 0.00 | 0.00 | 0.00 | 7/9/2026 | 8/24/2026 4:00:03 PM EST |
| 65.00 | 0.00 | 0.50 | 0.25 | % | 0.00 | 0 | 5 | 1.14 | 0.00 | 0.00 | 0.00 | 8/24/2026 4:00:03 PM EST | |||
| 70.00 | 0.00 | 0.50 | 0.25 | 0.20 | 0.00 | 0.00% | 0.00 | 0 | 63 | 1.23 | 0.00 | 0.00 | 0.00 | 7/6/2026 | 8/24/2026 4:00:03 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 | 0.50 | 0.25 | 0.12 | 0.00 | 0.00% | 0.02 | 0 | 8 | 1.52 | 0.00 | 0.00 | 0.00 | 7/20/2026 | 8/24/2026 4:00:03 PM EST |
| 17.50 | 0.00 | 0.30 | 0.15 | 0.10 | 0.00 | 0.00% | 0.01 | 0 | 0 | 1.12 | 0.00 | 0.00 | 0.00 | 8/11/2026 | 8/24/2026 4:00:03 PM EST |
| 20.00 | 0.00 | 0.60 | 0.30 | 0.17 | 0.00 | 0.00% | 0.01 | 0 | 10 | 1.10 | 0.00 | 0.00 | 0.00 | 8/7/2026 | 8/24/2026 4:00:03 PM EST |
| 22.50 | 0.00 | 0.75 | 0.38 | 0.25 | 0.00 | 0.00% | 0.02 | 0 | 103 | 0.96 | -0.02 | 0.01 | -0.01 | 8/12/2026 | 8/24/2026 4:00:03 PM EST |
| 25.00 | 0.20 | 0.35 | 0.28 | 0.30 | -0.05 | -14.29% | 0.01 | 412 | 2,226 | 0.56 | -0.07 | 0.02 | -0.01 | 8/24/2026 | 8/24/2026 4:00:03 PM EST |
| 30.00 | 0.95 | 1.30 | 1.13 | 1.20 | -0.15 | -11.12% | 0.04 | 124 | 447 | 0.50 | -0.26 | 0.05 | -0.02 | 8/24/2026 | 8/24/2026 4:00:03 PM EST |
| 35.00 | 3.20 | 4.00 | 3.60 | 3.70 | -0.30 | -7.50% | 0.10 | 120 | 824 | 0.50 | -0.57 | 0.06 | -0.02 | 8/24/2026 | 8/24/2026 4:00:03 PM EST |
| 40.00 | 7.40 | 8.20 | 7.80 | 12.22 | 0.00 | 0.00% | 0.20 | 0 | 210 | 0.59 | -0.80 | 0.04 | -0.02 | 6/30/2026 | 8/24/2026 4:00:03 PM EST |
| 45.00 | 11.70 | 13.30 | 12.50 | 16.55 | 0.00 | 0.00% | 0.28 | 0 | 109 | 0.91 | -0.92 | 0.02 | -0.01 | 7/30/2026 | 8/24/2026 4:00:03 PM EST |
| 50.00 | 16.10 | 18.30 | 17.20 | 15.90 | 0.00 | 0.00% | 0.34 | 0 | 45 | 1.17 | -0.97 | 0.01 | 0.00 | 5/6/2026 | 8/24/2026 4:00:03 PM EST |
| 55.00 | 21.10 | 23.50 | 22.30 | % | 0.41 | 0 | 0 | 1.29 | -0.99 | 0.00 | 0.00 | 8/24/2026 4:00:03 PM EST | |||
| 60.00 | 26.10 | 28.40 | 27.25 | % | 0.45 | 0 | 0 | 1.39 | -1.00 | 0.00 | 0.00 | 8/24/2026 4:00:03 PM EST | |||
| 65.00 | 31.10 | 33.50 | 32.30 | % | 0.50 | 0 | 0 | 1.54 | -1.00 | 0.00 | 0.00 | 8/24/2026 4:00:03 PM EST | |||
| 70.00 | 36.10 | 38.50 | 37.30 | % | 0.53 | 0 | 0 | 1.65 | -1.00 | 0.00 | 0.00 | 8/24/2026 4:00:03 PM EST |