Options Chain for COSTAR GROUP INC COM (CSGP) - $32.23 as of 9/1/2026 4:16:25 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 | 16.40 | 17.60 | 17.00 | % | 1.13 | 0 | 0 | 2.33 | 1.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 PM EST | |||
| 17.50 | 13.90 | 15.10 | 14.50 | 15.50 | 0.00 | 0.00% | 0.83 | 0 | 1 | 1.92 | 1.00 | 0.00 | 0.00 | 5/29/2026 | 9/1/2026 1:58:58 PM EST |
| 20.00 | 11.30 | 12.60 | 11.95 | 9.70 | 0.00 | 0.00% | 0.60 | 0 | 8 | 1.56 | 1.00 | 0.00 | 0.00 | 6/25/2026 | 9/1/2026 1:58:58 PM EST |
| 22.50 | 8.80 | 10.30 | 9.55 | % | 0.42 | 0 | 0 | 1.44 | 1.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 PM EST | |||
| 25.00 | 6.40 | 7.60 | 7.00 | 4.43 | 0.00 | 0.00% | 0.28 | 0 | 32 | 0.95 | 1.00 | 0.01 | 0.00 | 7/24/2026 | 9/1/2026 1:58:58 PM EST |
| 30.00 | 2.60 | 2.95 | 2.78 | 2.90 | 0.00 | 0.00% | 0.09 | 0 | 393 | 0.48 | 0.78 | 0.09 | -0.03 | 8/31/2026 | 9/1/2026 1:58:58 PM EST |
| 35.00 | 0.45 | 0.50 | 0.48 | 0.50 | -0.05 | -9.10% | 0.01 | 134 | 1,473 | 0.52 | 0.25 | 0.09 | -0.03 | 9/1/2026 | 9/1/2026 1:58:58 PM EST |
| 40.00 | 0.05 | 0.10 | 0.08 | 0.10 | 0.00 | 0.00% | 0.00 | 8 | 1,560 | 0.57 | 0.03 | 0.02 | -0.01 | 9/1/2026 | 9/1/2026 1:58:58 PM EST |
| 45.00 | 0.05 | 0.10 | 0.08 | 0.10 | 0.00 | 0.00% | 0.00 | 0 | 3,660 | 0.81 | 0.00 | 0.00 | 0.00 | 8/31/2026 | 9/1/2026 1:58:58 PM EST |
| 50.00 | 0.00 | 0.15 | 0.08 | 0.07 | 0.00 | 0.00% | 0.00 | 0 | 1,304 | 1.14 | 0.00 | 0.00 | 0.00 | 8/10/2026 | 9/1/2026 1:58:58 PM EST |
| 55.00 | 0.00 | 0.15 | 0.08 | 0.10 | 0.00 | 0.00% | 0.00 | 0 | 446 | 1.33 | 0.00 | 0.00 | 0.00 | 8/19/2026 | 9/1/2026 1:58:58 PM EST |
| 60.00 | 0.00 | 0.05 | 0.03 | 0.05 | 0.00 | 0.00% | 0.00 | 0 | 216 | 1.27 | 0.00 | 0.00 | 0.00 | 8/25/2026 | 9/1/2026 1:58:58 PM EST |
| 65.00 | 0.00 | 0.45 | 0.23 | 0.10 | 0.00 | 0.00% | 0.00 | 0 | 91 | 2.02 | 0.00 | 0.00 | 0.00 | 5/14/2026 | 9/1/2026 1:58:58 PM EST |
| 70.00 | 0.00 | 0.20 | 0.10 | 0.05 | 0.00 | 0.00% | 0.00 | 0 | 859 | 1.87 | 0.00 | 0.00 | 0.00 | 7/2/2026 | 9/1/2026 1:58:58 PM EST |
| 75.00 | 0.00 | 0.45 | 0.23 | 0.05 | 0.00 | 0.00% | 0.00 | 0 | 28 | 2.31 | 0.00 | 0.00 | 0.00 | 7/24/2026 | 9/1/2026 1:58:58 PM EST |
| 80.00 | 0.00 | 0.45 | 0.23 | 0.09 | 0.00 | 0.00% | 0.00 | 0 | 128 | 2.44 | 0.00 | 0.00 | 0.00 | 6/16/2026 | 9/1/2026 1:58:58 PM EST |
| 85.00 | 0.00 | 0.45 | 0.23 | 0.10 | 0.00 | 0.00% | 0.00 | 0 | 16 | 2.55 | 0.00 | 0.00 | 0.00 | 6/16/2026 | 9/1/2026 1:58:58 PM EST |
| 90.00 | 0.00 | 0.45 | 0.23 | 0.15 | 0.00 | 0.00% | 0.00 | 0 | 16 | 2.66 | 0.00 | 0.00 | 0.00 | 4/13/2026 | 9/1/2026 1:58:58 PM EST |
| 95.00 | 0.00 | 0.45 | 0.23 | 0.07 | 0.00 | 0.00% | 0.00 | 0 | 14 | 2.77 | 0.00 | 0.00 | 0.00 | 8/11/2026 | 9/1/2026 1:58:58 PM EST |
| 100.00 | 0.00 | 0.20 | 0.10 | 0.09 | 0.00 | 0.00% | 0.00 | 0 | 54 | 2.51 | 0.00 | 0.00 | 0.00 | 4/13/2026 | 9/1/2026 1:58:58 PM EST |
| 105.00 | 0.00 | 0.45 | 0.23 | % | 0.00 | 0 | 2 | 2.95 | 0.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 PM EST | |||
| 110.00 | 0.00 | 0.45 | 0.23 | % | 0.00 | 0 | 7 | 3.04 | 0.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 PM EST | |||
| 115.00 | 0.00 | 0.45 | 0.23 | % | 0.00 | 0 | 3 | 3.12 | 0.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 PM EST | |||
| 120.00 | 0.00 | 0.05 | 0.03 | % | 0.00 | 0 | 17 | 2.37 | 0.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 PM EST | |||
| 125.00 | 0.00 | 0.45 | 0.23 | % | 0.00 | 0 | 2 | 3.27 | 0.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 PM EST | |||
| 130.00 | 0.00 | 0.45 | 0.23 | % | 0.00 | 0 | 0 | 3.34 | 0.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 PM EST | |||
| 135.00 | 0.00 | 0.30 | 0.15 | % | 0.00 | 0 | 5 | 3.19 | 0.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 PM EST | |||
| 140.00 | 0.00 | 0.45 | 0.23 | % | 0.00 | 0 | 0 | 3.47 | 0.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 PM EST | |||
| 145.00 | 0.00 | 0.45 | 0.23 | % | 0.00 | 0 | 0 | 3.53 | 0.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 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 | 0.45 | 0.23 | 0.25 | 0.00 | 0.00% | 0.02 | 0 | 1 | 2.56 | 0.00 | 0.00 | 0.00 | 7/29/2026 | 9/1/2026 1:58:58 PM EST |
| 17.50 | 0.00 | 0.45 | 0.23 | 0.10 | 0.00 | 0.00% | 0.01 | 0 | 11 | 2.12 | 0.00 | 0.00 | 0.00 | 7/28/2026 | 9/1/2026 1:58:58 PM EST |
| 20.00 | 0.00 | 0.50 | 0.25 | 0.10 | 0.00 | 0.00% | 0.01 | 0 | 75 | 1.79 | 0.00 | 0.00 | 0.00 | 8/31/2026 | 9/1/2026 1:58:58 PM EST |
| 22.50 | 0.00 | 0.10 | 0.05 | 0.07 | +0.02 | +40.00% | 0.00 | 6 | 360 | 0.98 | 0.00 | 0.00 | 0.00 | 9/1/2026 | 9/1/2026 1:58:58 PM EST |
| 25.00 | 0.05 | 0.15 | 0.10 | 0.09 | -0.01 | -10.00% | 0.00 | 1 | 881 | 0.72 | 0.00 | 0.01 | 0.00 | 9/1/2026 | 9/1/2026 1:58:58 PM EST |
| 30.00 | 0.45 | 0.55 | 0.50 | 0.45 | -0.05 | -10.00% | 0.02 | 770 | 4,386 | 0.49 | -0.22 | 0.09 | -0.03 | 9/1/2026 | 9/1/2026 1:58:58 PM EST |
| 35.00 | 3.00 | 3.40 | 3.20 | 3.20 | -0.10 | -3.03% | 0.09 | 64 | 641 | 0.51 | -0.75 | 0.09 | -0.03 | 9/1/2026 | 9/1/2026 1:58:58 PM EST |
| 40.00 | 7.60 | 8.00 | 7.80 | 8.07 | 0.00 | 0.00% | 0.20 | 0 | 912 | 0.79 | -0.97 | 0.02 | -0.01 | 8/31/2026 | 9/1/2026 1:58:58 PM EST |
| 45.00 | 12.50 | 13.70 | 13.10 | 14.35 | 0.00 | 0.00% | 0.29 | 0 | 51 | 1.52 | -1.00 | 0.00 | 0.00 | 8/12/2026 | 9/1/2026 1:58:58 PM EST |
| 50.00 | 17.30 | 18.70 | 18.00 | 18.76 | 0.00 | 0.00% | 0.36 | 0 | 2 | 1.86 | -1.00 | 0.00 | 0.00 | 8/27/2026 | 9/1/2026 1:58:58 PM EST |
| 55.00 | 22.30 | 23.70 | 23.00 | 22.10 | 0.00 | 0.00% | 0.42 | 0 | 25 | 2.11 | -1.00 | 0.00 | 0.00 | 8/31/2026 | 9/1/2026 1:58:58 PM EST |
| 60.00 | 27.30 | 28.70 | 28.00 | 27.10 | 0.00 | 0.00% | 0.47 | 0 | 45 | 2.33 | -1.00 | 0.00 | 0.00 | 8/31/2026 | 9/1/2026 1:58:58 PM EST |
| 65.00 | 32.30 | 33.70 | 33.00 | 33.47 | 0.00 | 0.00% | 0.51 | 0 | 0 | 2.52 | -1.00 | 0.00 | 0.00 | 8/27/2026 | 9/1/2026 1:58:58 PM EST |
| 70.00 | 37.30 | 38.70 | 38.00 | 38.45 | 0.00 | 0.00% | 0.54 | 0 | 15 | 2.69 | -1.00 | 0.00 | 0.00 | 8/27/2026 | 9/1/2026 1:58:58 PM EST |
| 75.00 | 42.30 | 43.70 | 43.00 | 43.52 | 0.00 | 0.00% | 0.57 | 0 | 14 | 2.85 | -1.00 | 0.00 | 0.00 | 8/27/2026 | 9/1/2026 1:58:58 PM EST |
| 80.00 | 47.50 | 48.70 | 48.10 | 48.63 | 0.00 | 0.00% | 0.60 | 0 | 12 | 3.00 | -1.00 | 0.00 | 0.00 | 8/27/2026 | 9/1/2026 1:58:58 PM EST |
| 85.00 | 52.50 | 53.70 | 53.10 | 53.55 | 0.00 | 0.00% | 0.62 | 0 | 4 | 3.13 | -1.00 | 0.00 | 0.00 | 8/27/2026 | 9/1/2026 1:58:58 PM EST |
| 90.00 | 57.50 | 58.70 | 58.10 | 57.49 | 0.00 | 0.00% | 0.65 | 0 | 5 | 3.25 | -1.00 | 0.00 | 0.00 | 8/20/2026 | 9/1/2026 1:58:58 PM EST |
| 95.00 | 62.30 | 63.70 | 63.00 | 66.47 | 0.00 | 0.00% | 0.66 | 0 | 4 | 3.37 | -1.00 | 0.00 | 0.00 | 7/21/2026 | 9/1/2026 1:58:58 PM EST |
| 100.00 | 67.50 | 68.70 | 68.10 | 67.52 | 0.00 | 0.00% | 0.68 | 0 | 2 | 3.48 | -1.00 | 0.00 | 0.00 | 8/20/2026 | 9/1/2026 1:58:58 PM EST |
| 105.00 | 72.50 | 73.70 | 73.10 | % | 0.70 | 0 | 0 | 3.58 | -1.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 PM EST | |||
| 110.00 | 77.50 | 78.70 | 78.10 | % | 0.71 | 0 | 0 | 3.68 | -1.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 PM EST | |||
| 115.00 | 82.50 | 83.70 | 83.10 | % | 0.72 | 0 | 0 | 3.77 | -1.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 PM EST | |||
| 120.00 | 87.50 | 88.70 | 88.10 | % | 0.73 | 0 | 0 | 3.86 | -1.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 PM EST | |||
| 125.00 | 92.50 | 93.70 | 93.10 | % | 0.74 | 0 | 0 | 3.94 | -1.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 PM EST | |||
| 130.00 | 97.50 | 98.70 | 98.10 | % | 0.75 | 0 | 0 | 4.02 | -1.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 PM EST | |||
| 135.00 | 102.40 | 103.70 | 103.05 | % | 0.76 | 0 | 0 | 4.10 | -1.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 PM EST | |||
| 140.00 | 107.50 | 108.70 | 108.10 | % | 0.77 | 0 | 0 | 4.17 | -1.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 PM EST | |||
| 145.00 | 112.40 | 113.70 | 113.05 | % | 0.78 | 0 | 0 | 4.24 | -1.00 | 0.00 | 0.00 | 9/1/2026 1:58:58 PM EST |