Options Chain for COSTAR GROUP INC COM (CSGP) - $61.93 as of 1/30/2026 2:53:51 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 30.00 | 29.70 | 33.80 | 31.75 | % | 1.06 | 0 | 0 | 1.87 | 1.00 | 0.00 | 0.00 | 1/30/2026 4:00:01 PM EST | |||
| 35.00 | 25.00 | 28.60 | 26.80 | % | 0.77 | 0 | 0 | 1.49 | 1.00 | 0.00 | 0.00 | 1/30/2026 4:00:01 PM EST | |||
| 40.00 | 20.50 | 23.10 | 21.80 | 22.20 | 0.00 | 0.00% | 0.55 | 0 | 13 | 1.09 | 0.99 | 0.00 | -0.01 | 1/14/2026 | 1/30/2026 4:00:01 PM EST |
| 45.00 | 16.20 | 18.10 | 17.15 | % | 0.38 | 0 | 0 | 0.85 | 0.96 | 0.01 | -0.02 | 1/30/2026 4:00:01 PM EST | |||
| 50.00 | 11.60 | 13.10 | 12.35 | 19.11 | 0.00 | 0.00% | 0.25 | 0 | 13 | 0.64 | 0.90 | 0.02 | -0.03 | 10/29/2025 | 1/30/2026 4:00:01 PM EST |
| 55.00 | 7.50 | 8.90 | 8.20 | 12.00 | 0.00 | 0.00% | 0.15 | 0 | 21 | 0.45 | 0.78 | 0.03 | -0.04 | 12/18/2025 | 1/30/2026 4:00:01 PM EST |
| 60.00 | 4.70 | 5.10 | 4.90 | 5.40 | 0.00 | 0.00% | 0.08 | 0 | 56 | 0.44 | 0.61 | 0.04 | -0.04 | 1/29/2026 | 1/30/2026 4:00:01 PM EST |
| 65.00 | 2.40 | 2.80 | 2.60 | 2.75 | -0.05 | -1.79% | 0.04 | 36 | 384 | 0.43 | 0.41 | 0.04 | -0.04 | 1/30/2026 | 1/30/2026 4:00:01 PM EST |
| 70.00 | 1.15 | 1.50 | 1.33 | 1.37 | -0.03 | -2.15% | 0.02 | 3 | 1,440 | 0.44 | 0.24 | 0.03 | -0.03 | 1/30/2026 | 1/30/2026 4:00:01 PM EST |
| 75.00 | 0.55 | 0.80 | 0.68 | 0.70 | -0.45 | -39.13% | 0.01 | 2 | 1,634 | 0.45 | 0.14 | 0.02 | -0.02 | 1/30/2026 | 1/30/2026 4:00:01 PM EST |
| 80.00 | 0.25 | 0.70 | 0.48 | 0.40 | -0.01 | -2.44% | 0.01 | 1 | 234 | 0.50 | 0.08 | 0.01 | -0.02 | 1/30/2026 | 1/30/2026 4:00:01 PM EST |
| 85.00 | 0.10 | 0.35 | 0.23 | 0.30 | -0.15 | -33.34% | 0.00 | 1 | 235 | 0.49 | 0.05 | 0.01 | -0.01 | 1/30/2026 | 1/30/2026 4:00:01 PM EST |
| 90.00 | 0.00 | 0.75 | 0.38 | 0.13 | 0.00 | 0.00% | 0.00 | 0 | 1,627 | 0.74 | 0.02 | 0.00 | 0.00 | 1/29/2026 | 1/30/2026 4:00:01 PM EST |
| 95.00 | 0.00 | 0.75 | 0.38 | 0.20 | 0.00 | 0.00% | 0.00 | 0 | 385 | 0.81 | 0.01 | 0.00 | 0.00 | 1/23/2026 | 1/30/2026 4:00:01 PM EST |
| 100.00 | 0.00 | 0.75 | 0.38 | 0.10 | 0.00 | 0.00% | 0.00 | 0 | 432 | 0.88 | 0.00 | 0.00 | 0.00 | 1/28/2026 | 1/30/2026 4:00:01 PM EST |
| 105.00 | 0.00 | 0.75 | 0.38 | 0.80 | 0.00 | 0.00% | 0.00 | 0 | 396 | 0.94 | 0.00 | 0.00 | 0.00 | 10/28/2025 | 1/30/2026 4:00:01 PM EST |
| 110.00 | 0.00 | 0.75 | 0.38 | 1.80 | 0.00 | 0.00% | 0.00 | 0 | 375 | 1.00 | 0.00 | 0.00 | 0.00 | 9/15/2025 | 1/30/2026 4:00:01 PM EST |
| 115.00 | 0.00 | 0.75 | 0.38 | 0.46 | 0.00 | 0.00% | 0.00 | 0 | 16 | 1.06 | 0.00 | 0.00 | 0.00 | 10/24/2025 | 1/30/2026 4:00:01 PM EST |
| 120.00 | 0.00 | 0.75 | 0.38 | 1.05 | 0.00 | 0.00% | 0.00 | 0 | 8 | 1.11 | 0.00 | 0.00 | 0.00 | 9/9/2025 | 1/30/2026 4:00:01 PM EST |
| 125.00 | 0.00 | 0.75 | 0.38 | 0.80 | 0.00 | 0.00% | 0.00 | 0 | 1 | 1.16 | 0.00 | 0.00 | 0.00 | 9/3/2025 | 1/30/2026 4:00:01 PM EST |
| 130.00 | 0.00 | 0.75 | 0.38 | % | 0.00 | 0 | 0 | 1.21 | 0.00 | 0.00 | 0.00 | 1/30/2026 4:00:01 PM EST | |||
| 135.00 | 0.00 | 0.75 | 0.38 | % | 0.00 | 0 | 0 | 1.26 | 0.00 | 0.00 | 0.00 | 1/30/2026 4:00:01 PM EST | |||
| 140.00 | 0.00 | 0.75 | 0.38 | % | 0.00 | 0 | 0 | 1.30 | 0.00 | 0.00 | 0.00 | 1/30/2026 4:00:01 PM EST | |||
| 145.00 | 0.00 | 0.75 | 0.38 | % | 0.00 | 0 | 0 | 1.34 | 0.00 | 0.00 | 0.00 | 1/30/2026 4:00:01 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 30.00 | 0.00 | 2.15 | 1.08 | % | 0.04 | 0 | 0 | 1.88 | 0.00 | 0.00 | 0.00 | 1/30/2026 4:00:01 PM EST | |||
| 35.00 | 0.00 | 0.75 | 0.38 | % | 0.01 | 0 | 0 | 1.14 | 0.00 | 0.00 | 0.00 | 1/30/2026 4:00:01 PM EST | |||
| 40.00 | 0.00 | 0.75 | 0.38 | 0.36 | 0.00 | 0.00% | 0.01 | 0 | 150 | 0.92 | -0.01 | 0.00 | -0.01 | 1/12/2026 | 1/30/2026 4:00:01 PM EST |
| 45.00 | 0.05 | 0.45 | 0.25 | 0.25 | 0.00 | 0.00% | 0.01 | 0 | 145 | 0.52 | -0.04 | 0.01 | -0.02 | 1/22/2026 | 1/30/2026 4:00:01 PM EST |
| 50.00 | 0.50 | 0.70 | 0.60 | 0.50 | -0.15 | -23.08% | 0.01 | 41 | 454 | 0.50 | -0.10 | 0.02 | -0.03 | 1/30/2026 | 1/30/2026 4:00:01 PM EST |
| 55.00 | 1.25 | 1.45 | 1.35 | 1.20 | -0.06 | -4.77% | 0.02 | 391 | 341 | 0.45 | -0.22 | 0.03 | -0.04 | 1/30/2026 | 1/30/2026 4:00:01 PM EST |
| 60.00 | 2.85 | 3.10 | 2.98 | 3.10 | +0.50 | +19.24% | 0.05 | 166 | 976 | 0.43 | -0.39 | 0.04 | -0.04 | 1/30/2026 | 1/30/2026 4:00:01 PM EST |
| 65.00 | 5.60 | 6.00 | 5.80 | 5.60 | +0.10 | +1.82% | 0.09 | 1 | 359 | 0.44 | -0.59 | 0.04 | -0.04 | 1/30/2026 | 1/30/2026 4:00:01 PM EST |
| 70.00 | 9.30 | 9.70 | 9.50 | 9.80 | +4.00 | +68.97% | 0.14 | 2 | 290 | 0.44 | -0.76 | 0.03 | -0.03 | 1/30/2026 | 1/30/2026 4:00:01 PM EST |
| 75.00 | 13.10 | 14.70 | 13.90 | 9.70 | 0.00 | 0.00% | 0.19 | 0 | 241 | 0.60 | -0.86 | 0.02 | -0.02 | 1/22/2026 | 1/30/2026 4:00:01 PM EST |
| 80.00 | 18.50 | 18.80 | 18.65 | 13.80 | 0.00 | 0.00% | 0.23 | 0 | 429 | 0.53 | -0.92 | 0.01 | -0.02 | 1/22/2026 | 1/30/2026 4:00:01 PM EST |
| 85.00 | 22.10 | 25.10 | 23.60 | 16.90 | 0.00 | 0.00% | 0.28 | 0 | 36 | 0.88 | -0.95 | 0.01 | -0.01 | 12/31/2025 | 1/30/2026 4:00:01 PM EST |
| 90.00 | 27.20 | 30.30 | 28.75 | 9.60 | 0.00 | 0.00% | 0.32 | 0 | 0 | 1.01 | -0.98 | 0.00 | 0.00 | 10/3/2025 | 1/30/2026 4:00:01 PM EST |
| 95.00 | 31.70 | 35.30 | 33.50 | % | 0.35 | 0 | 0 | 1.10 | -0.99 | 0.00 | 0.00 | 1/30/2026 4:00:01 PM EST | |||
| 100.00 | 36.70 | 40.30 | 38.50 | 20.55 | 0.00 | 0.00% | 0.39 | 0 | 0 | 1.18 | -1.00 | 0.00 | 0.00 | 10/8/2025 | 1/30/2026 4:00:01 PM EST |
| 105.00 | 41.70 | 45.30 | 43.50 | % | 0.41 | 0 | 0 | 1.26 | -1.00 | 0.00 | 0.00 | 1/30/2026 4:00:01 PM EST | |||
| 110.00 | 46.70 | 50.30 | 48.50 | 31.10 | 0.00 | 0.00% | 0.44 | 0 | 0 | 1.33 | -1.00 | 0.00 | 0.00 | 10/24/2025 | 1/30/2026 4:00:01 PM EST |
| 115.00 | 51.70 | 55.30 | 53.50 | % | 0.47 | 0 | 0 | 1.39 | -1.00 | 0.00 | 0.00 | 1/30/2026 4:00:01 PM EST | |||
| 120.00 | 56.70 | 60.30 | 58.50 | % | 0.49 | 0 | 0 | 1.46 | -1.00 | 0.00 | 0.00 | 1/30/2026 4:00:01 PM EST | |||
| 125.00 | 61.70 | 65.30 | 63.50 | % | 0.51 | 0 | 0 | 1.52 | -1.00 | 0.00 | 0.00 | 1/30/2026 4:00:01 PM EST | |||
| 130.00 | 66.80 | 70.30 | 68.55 | % | 0.53 | 0 | 0 | 1.57 | -1.00 | 0.00 | 0.00 | 1/30/2026 4:00:01 PM EST | |||
| 135.00 | 71.80 | 75.30 | 73.55 | % | 0.54 | 0 | 0 | 1.63 | -1.00 | 0.00 | 0.00 | 1/30/2026 4:00:01 PM EST | |||
| 140.00 | 76.80 | 80.30 | 78.55 | % | 0.56 | 0 | 0 | 1.68 | -1.00 | 0.00 | 0.00 | 1/30/2026 4:00:01 PM EST | |||
| 145.00 | 81.80 | 85.30 | 83.55 | % | 0.58 | 0 | 0 | 1.73 | -1.00 | 0.00 | 0.00 | 1/30/2026 4:00:01 PM EST |