Options Chain for COSTAR GROUP INC COM (CSGP) - $28.39 as of 7/13/2026 10:47:37 AM 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20.00 | 7.60 | 9.80 | 8.70 | % | 0.43 | 0 | 0 | 3.96 | 1.00 | 0.00 | 0.00 | 7/13/2026 3:59:56 PM EST | |||
| 22.50 | 5.40 | 6.90 | 6.15 | % | 0.27 | 0 | 0 | 2.51 | 1.00 | 0.00 | 0.00 | 7/13/2026 3:59:56 PM EST | |||
| 25.00 | 2.95 | 4.10 | 3.53 | 3.34 | 0.00 | 0.00% | 0.14 | 0 | 23 | 1.36 | 0.98 | 0.02 | -0.01 | 7/10/2026 | 7/13/2026 3:59:56 PM EST |
| 30.00 | 0.25 | 0.30 | 0.28 | 0.25 | -0.04 | -13.80% | 0.01 | 25 | 643 | 0.59 | 0.27 | 0.18 | -0.07 | 7/13/2026 | 7/13/2026 3:59:56 PM EST |
| 35.00 | 0.00 | 0.10 | 0.05 | 0.22 | +0.17 | +340.00% | 0.00 | 1 | 837 | 1.20 | 0.00 | 0.00 | 0.00 | 7/13/2026 | 7/13/2026 3:59:56 PM EST |
| 40.00 | 0.00 | 0.05 | 0.03 | 0.05 | 0.00 | 0.00% | 0.00 | 0 | 2,424 | 1.59 | 0.00 | 0.00 | 0.00 | 7/10/2026 | 7/13/2026 3:59:56 PM EST |
| 45.00 | 0.00 | 0.50 | 0.25 | 0.01 | -0.19 | -95.00% | 0.01 | 1 | 204 | 3.19 | 0.00 | 0.00 | 0.00 | 7/13/2026 | 7/13/2026 3:59:56 PM EST |
| 50.00 | 0.00 | 0.15 | 0.08 | 0.15 | 0.00 | 0.00% | 0.00 | 0 | 92 | 2.89 | 0.00 | 0.00 | 0.00 | 6/1/2026 | 7/13/2026 3:59:56 PM EST |
| 55.00 | 0.00 | 0.50 | 0.25 | 0.19 | 0.00 | 0.00% | 0.00 | 0 | 124 | 4.14 | 0.00 | 0.00 | 0.00 | 5/19/2026 | 7/13/2026 3:59:56 PM EST |
| 60.00 | 0.00 | 0.10 | 0.05 | 0.06 | 0.00 | 0.00% | 0.00 | 0 | 346 | 3.39 | 0.00 | 0.00 | 0.00 | 6/17/2026 | 7/13/2026 3:59:56 PM EST |
| 65.00 | 0.00 | 0.50 | 0.25 | 0.05 | 0.00 | 0.00% | 0.00 | 0 | 236 | 4.87 | 0.00 | 0.00 | 0.00 | 7/8/2026 | 7/13/2026 3:59:56 PM EST |
| 70.00 | 0.00 | 0.50 | 0.25 | 0.13 | 0.00 | 0.00% | 0.00 | 0 | 182 | 0.00 | 0.00 | 0.00 | 0.00 | 5/20/2026 | 7/13/2026 3:59:56 PM EST |
| 75.00 | 0.00 | 0.50 | 0.25 | % | 0.00 | 0 | 60 | 0.00 | 0.00 | 0.00 | 0.00 | 7/13/2026 3:59:56 PM EST | |||
| 80.00 | 0.00 | 0.50 | 0.25 | % | 0.00 | 0 | 2 | 0.00 | 0.00 | 0.00 | 0.00 | 7/13/2026 3:59:56 PM EST | |||
| 85.00 | 0.00 | 0.50 | 0.25 | % | 0.00 | 0 | 17 | 0.00 | 0.00 | 0.00 | 0.00 | 7/13/2026 3:59:56 PM EST | |||
| 90.00 | 0.00 | 0.50 | 0.25 | % | 0.00 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 7/13/2026 3:59:56 PM EST | |||
| 95.00 | 0.00 | 0.50 | 0.25 | % | 0.00 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 7/13/2026 3:59:56 PM EST | |||
| 100.00 | 0.00 | 0.95 | 0.48 | % | 0.00 | 0 | 0 | 0.00 | 0.00 | 0.00 | 0.00 | 7/13/2026 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 20.00 | 0.00 | 0.10 | 0.05 | 0.05 | 0.00 | 0.00% | 0.00 | 0 | 10 | 2.07 | 0.00 | 0.00 | 0.00 | 6/29/2026 | 7/13/2026 3:59:56 PM EST |
| 22.50 | 0.00 | 0.05 | 0.03 | 0.10 | 0.00 | 0.00% | 0.00 | 0 | 168 | 1.31 | 0.00 | 0.00 | 0.00 | 7/6/2026 | 7/13/2026 3:59:56 PM EST |
| 25.00 | 0.00 | 0.10 | 0.05 | 0.05 | -0.05 | -50.00% | 0.00 | 1 | 851 | 0.96 | -0.02 | 0.02 | -0.01 | 7/13/2026 | 7/13/2026 3:59:56 PM EST |
| 30.00 | 1.10 | 1.90 | 1.50 | 1.63 | -0.34 | -17.26% | 0.05 | 5 | 853 | 0.97 | -0.73 | 0.18 | -0.07 | 7/13/2026 | 7/13/2026 3:59:56 PM EST |
| 35.00 | 5.90 | 6.90 | 6.40 | 5.80 | -0.83 | -12.52% | 0.18 | 7 | 847 | 2.06 | -1.00 | 0.00 | 0.00 | 7/13/2026 | 7/13/2026 3:59:56 PM EST |
| 40.00 | 10.50 | 12.30 | 11.40 | 10.80 | 0.00 | 0.00% | 0.29 | 0 | 23 | 3.32 | -1.00 | 0.00 | 0.00 | 7/1/2026 | 7/13/2026 3:59:56 PM EST |
| 45.00 | 15.40 | 17.30 | 16.35 | 17.40 | 0.00 | 0.00% | 0.36 | 0 | 1 | 3.99 | -1.00 | 0.00 | 0.00 | 6/25/2026 | 7/13/2026 3:59:56 PM EST |
| 50.00 | 20.30 | 22.30 | 21.30 | 18.30 | 0.00 | 0.00% | 0.43 | 0 | 0 | 4.55 | -1.00 | 0.00 | 0.00 | 6/17/2026 | 7/13/2026 3:59:56 PM EST |
| 55.00 | 25.30 | 27.30 | 26.30 | 20.06 | 0.00 | 0.00% | 0.48 | 0 | 0 | 5.04 | -1.00 | 0.00 | 0.00 | 5/7/2026 | 7/13/2026 3:59:56 PM EST |
| 60.00 | 30.40 | 32.50 | 31.45 | 27.70 | 0.00 | 0.00% | 0.52 | 0 | 0 | 5.73 | -1.00 | 0.00 | 0.00 | 5/14/2026 | 7/13/2026 3:59:56 PM EST |
| 65.00 | 35.30 | 37.30 | 36.30 | 22.30 | 0.00 | 0.00% | 0.56 | 0 | 0 | 5.84 | -1.00 | 0.00 | 0.00 | 3/23/2026 | 7/13/2026 3:59:56 PM EST |
| 70.00 | 40.30 | 42.50 | 41.40 | % | 0.59 | 0 | 0 | 6.46 | -1.00 | 0.00 | 0.00 | 7/13/2026 3:59:56 PM EST | |||
| 75.00 | 45.40 | 47.50 | 46.45 | % | 0.62 | 0 | 0 | 6.78 | -1.00 | 0.00 | 0.00 | 7/13/2026 3:59:56 PM EST | |||
| 80.00 | 50.40 | 52.50 | 51.45 | % | 0.64 | 0 | 0 | 7.07 | -1.00 | 0.00 | 0.00 | 7/13/2026 3:59:56 PM EST | |||
| 85.00 | 55.30 | 57.50 | 56.40 | % | 0.66 | 0 | 0 | 7.34 | -1.00 | 0.00 | 0.00 | 7/13/2026 3:59:56 PM EST | |||
| 90.00 | 60.30 | 62.50 | 61.40 | % | 0.68 | 0 | 0 | 7.59 | -1.00 | 0.00 | 0.00 | 7/13/2026 3:59:56 PM EST | |||
| 95.00 | 65.40 | 67.50 | 66.45 | % | 0.70 | 0 | 0 | 7.82 | -1.00 | 0.00 | 0.00 | 7/13/2026 3:59:56 PM EST | |||
| 100.00 | 69.60 | 73.00 | 71.30 | 66.65 | 0.00 | 0.00% | 0.71 | 0 | 0 | 8.71 | -1.00 | 0.00 | 0.00 | 6/5/2026 | 7/13/2026 3:59:56 PM EST |