Options Chain for COSTAR GROUP INC COM (CSGP) - $47.90 as of 2/24/2026 7:48:52 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 35.00 | 13.90 | 15.50 | 14.70 | % | 0.42 | 0 | 0 | 0.90 | 0.92 | 0.01 | -0.02 | 2/24/2026 4:00:18 PM EST | |||
| 40.00 | 9.70 | 11.10 | 10.40 | 11.00 | 0.00 | 0.00% | 0.26 | 0 | 37 | 0.70 | 0.83 | 0.02 | -0.03 | 2/6/2026 | 2/24/2026 4:00:18 PM EST |
| 45.00 | 6.00 | 7.10 | 6.55 | 6.00 | +0.10 | +1.70% | 0.15 | 9 | 88 | 0.62 | 0.69 | 0.03 | -0.04 | 2/24/2026 | 2/24/2026 4:00:18 PM EST |
| 50.00 | 3.70 | 4.40 | 4.05 | 4.00 | +0.50 | +14.29% | 0.08 | 26 | 728 | 0.62 | 0.50 | 0.04 | -0.04 | 2/24/2026 | 2/24/2026 4:00:18 PM EST |
| 55.00 | 1.80 | 2.30 | 2.05 | 2.05 | +0.10 | +5.13% | 0.04 | 46 | 145 | 0.57 | 0.31 | 0.04 | -0.04 | 2/24/2026 | 2/24/2026 4:00:18 PM EST |
| 60.00 | 0.90 | 1.05 | 0.98 | 1.01 | +0.15 | +17.45% | 0.02 | 5 | 1,092 | 0.55 | 0.18 | 0.03 | -0.03 | 2/24/2026 | 2/24/2026 4:00:18 PM EST |
| 65.00 | 0.15 | 0.75 | 0.45 | 0.60 | 0.00 | 0.00% | 0.01 | 0 | 145 | 0.53 | 0.10 | 0.02 | -0.02 | 2/23/2026 | 2/24/2026 4:00:18 PM EST |
| 70.00 | 0.05 | 0.95 | 0.50 | 0.42 | 0.00 | 0.00% | 0.01 | 0 | 69 | 0.61 | 0.05 | 0.01 | -0.01 | 2/20/2026 | 2/24/2026 4:00:18 PM EST |
| 75.00 | 0.00 | 0.95 | 0.48 | 0.46 | 0.00 | 0.00% | 0.01 | 0 | 1,187 | 0.53 | 0.03 | 0.01 | -0.01 | 2/18/2026 | 2/24/2026 4:00:18 PM EST |
| 80.00 | 0.00 | 0.95 | 0.48 | 0.15 | 0.00 | 0.00% | 0.01 | 0 | 558 | 0.96 | 0.01 | 0.00 | 0.00 | 2/17/2026 | 2/24/2026 4:00:18 PM EST |
| 85.00 | 0.00 | 0.90 | 0.45 | 0.75 | 0.00 | 0.00% | 0.01 | 0 | 58 | 1.03 | 0.00 | 0.00 | 0.00 | 1/22/2026 | 2/24/2026 4:00:18 PM EST |
| 90.00 | 0.00 | 0.90 | 0.45 | 0.70 | 0.00 | 0.00% | 0.01 | 0 | 40 | 1.10 | 0.00 | 0.00 | 0.00 | 12/9/2025 | 2/24/2026 4:00:18 PM EST |
| 95.00 | 0.00 | 0.75 | 0.38 | 7.20 | 0.00 | 0.00% | 0.00 | 0 | 2 | 1.12 | 0.00 | 0.00 | 0.00 | 8/20/2025 | 2/24/2026 4:00:18 PM EST |
| 100.00 | 0.00 | 0.80 | 0.40 | 1.58 | 0.00 | 0.00% | 0.00 | 0 | 15 | 1.20 | 0.00 | 0.00 | 0.00 | 10/22/2025 | 2/24/2026 4:00:18 PM EST |
| 105.00 | 0.00 | 0.75 | 0.38 | 0.75 | 0.00 | 0.00% | 0.00 | 0 | 10 | 1.24 | 0.00 | 0.00 | 0.00 | 10/31/2025 | 2/24/2026 4:00:18 PM EST |
| 110.00 | 0.00 | 0.75 | 0.38 | % | 0.00 | 0 | 0 | 1.30 | 0.00 | 0.00 | 0.00 | 2/24/2026 4:00:18 PM EST | |||
| 115.00 | 0.00 | 0.75 | 0.38 | 0.40 | 0.00 | 0.00% | 0.00 | 0 | 0 | 1.35 | 0.00 | 0.00 | 0.00 | 10/17/2025 | 2/24/2026 4:00:18 PM EST |
| 120.00 | 0.00 | 0.80 | 0.40 | % | 0.00 | 0 | 0 | 1.42 | 0.00 | 0.00 | 0.00 | 2/24/2026 4:00:18 PM EST | |||
| 125.00 | 0.00 | 0.80 | 0.40 | % | 0.00 | 0 | 0 | 1.46 | 0.00 | 0.00 | 0.00 | 2/24/2026 4:00:18 PM EST | |||
| 130.00 | 0.00 | 0.75 | 0.38 | 0.81 | 0.00 | 0.00% | 0.00 | 0 | 0 | 1.49 | 0.00 | 0.00 | 0.00 | 8/28/2025 | 2/24/2026 4:00:18 PM EST |
| 135.00 | 0.00 | 2.80 | 1.40 | % | 0.01 | 0 | 0 | 2.07 | 0.00 | 0.00 | 0.00 | 2/24/2026 4:00:18 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 35.00 | 0.25 | 0.90 | 0.58 | 0.35 | 0.00 | 0.00% | 0.02 | 0 | 50 | 0.70 | -0.08 | 0.01 | -0.02 | 2/20/2026 | 2/24/2026 4:00:18 PM EST |
| 40.00 | 0.90 | 1.25 | 1.08 | 1.00 | -0.20 | -16.67% | 0.03 | 3 | 330 | 0.61 | -0.17 | 0.02 | -0.03 | 2/24/2026 | 2/24/2026 4:00:18 PM EST |
| 45.00 | 2.10 | 2.35 | 2.23 | 2.20 | -0.23 | -9.47% | 0.05 | 3 | 61 | 0.55 | -0.31 | 0.03 | -0.04 | 2/24/2026 | 2/24/2026 4:00:18 PM EST |
| 50.00 | 4.10 | 4.60 | 4.35 | 4.40 | +0.30 | +7.32% | 0.09 | 251 | 239 | 0.51 | -0.50 | 0.04 | -0.04 | 2/24/2026 | 2/24/2026 4:00:18 PM EST |
| 55.00 | 7.20 | 7.80 | 7.50 | 7.50 | -0.20 | -2.60% | 0.14 | 3 | 355 | 0.47 | -0.69 | 0.04 | -0.04 | 2/24/2026 | 2/24/2026 4:00:18 PM EST |
| 60.00 | 11.30 | 12.00 | 11.65 | 11.30 | -1.30 | -10.32% | 0.19 | 61 | 186 | 0.45 | -0.82 | 0.03 | -0.03 | 2/24/2026 | 2/24/2026 4:00:18 PM EST |
| 65.00 | 15.40 | 17.20 | 16.30 | 16.59 | 0.00 | 0.00% | 0.25 | 0 | 132 | 0.80 | -0.90 | 0.02 | -0.02 | 2/19/2026 | 2/24/2026 4:00:18 PM EST |
| 70.00 | 19.20 | 22.50 | 20.85 | 20.55 | 0.00 | 0.00% | 0.30 | 0 | 46 | 0.98 | -0.95 | 0.01 | -0.01 | 2/9/2026 | 2/24/2026 4:00:18 PM EST |
| 75.00 | 24.20 | 27.70 | 25.95 | 9.30 | 0.00 | 0.00% | 0.35 | 0 | 184 | 1.13 | -0.97 | 0.01 | -0.01 | 1/27/2026 | 2/24/2026 4:00:18 PM EST |
| 80.00 | 28.90 | 32.70 | 30.80 | 27.14 | 0.00 | 0.00% | 0.39 | 0 | 119 | 1.23 | -0.99 | 0.00 | 0.00 | 2/3/2026 | 2/24/2026 4:00:18 PM EST |
| 85.00 | 33.90 | 37.60 | 35.75 | 18.40 | 0.00 | 0.00% | 0.42 | 0 | 0 | 1.31 | -1.00 | 0.00 | 0.00 | 1/22/2026 | 2/24/2026 4:00:18 PM EST |
| 90.00 | 38.90 | 42.60 | 40.75 | % | 0.45 | 0 | 0 | 1.39 | -1.00 | 0.00 | 0.00 | 2/24/2026 4:00:18 PM EST | |||
| 95.00 | 43.80 | 47.60 | 45.70 | % | 0.48 | 0 | 0 | 1.47 | -1.00 | 0.00 | 0.00 | 2/24/2026 4:00:18 PM EST | |||
| 100.00 | 48.80 | 52.60 | 50.70 | % | 0.51 | 0 | 0 | 1.55 | -1.00 | 0.00 | 0.00 | 2/24/2026 4:00:18 PM EST | |||
| 105.00 | 53.80 | 57.60 | 55.70 | % | 0.53 | 0 | 0 | 1.61 | -1.00 | 0.00 | 0.00 | 2/24/2026 4:00:18 PM EST | |||
| 110.00 | 58.80 | 62.60 | 60.70 | % | 0.55 | 0 | 0 | 1.68 | -1.00 | 0.00 | 0.00 | 2/24/2026 4:00:18 PM EST | |||
| 115.00 | 63.80 | 67.60 | 65.70 | % | 0.57 | 0 | 0 | 1.74 | -1.00 | 0.00 | 0.00 | 2/24/2026 4:00:18 PM EST | |||
| 120.00 | 68.80 | 72.60 | 70.70 | % | 0.59 | 0 | 0 | 1.80 | -1.00 | 0.00 | 0.00 | 2/24/2026 4:00:18 PM EST | |||
| 125.00 | 73.80 | 77.60 | 75.70 | % | 0.61 | 0 | 0 | 1.85 | -1.00 | 0.00 | 0.00 | 2/24/2026 4:00:18 PM EST | |||
| 130.00 | 78.80 | 82.60 | 80.70 | % | 0.62 | 0 | 0 | 1.91 | -1.00 | 0.00 | 0.00 | 2/24/2026 4:00:18 PM EST | |||
| 135.00 | 83.50 | 88.30 | 85.90 | % | 0.64 | 0 | 0 | 2.05 | -1.00 | 0.00 | 0.00 | 2/24/2026 4:00:18 PM EST |