Options Chain for COSTAR GROUP INC COM (CSGP) - $39.77 as of 3/27/2026 8:31:19 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 22.50 | 16.10 | 19.20 | 17.65 | % | 0.78 | 0 | 0 | 1.72 | 0.99 | 0.00 | 0.00 | 3/27/2026 4:00:08 PM EST | |||
| 25.00 | 14.40 | 16.30 | 15.35 | % | 0.61 | 0 | 0 | 1.34 | 0.97 | 0.01 | -0.01 | 3/27/2026 4:00:08 PM EST | |||
| 30.00 | 10.20 | 11.40 | 10.80 | % | 0.36 | 0 | 0 | 0.79 | 0.90 | 0.02 | -0.02 | 3/27/2026 4:00:08 PM EST | |||
| 35.00 | 6.30 | 6.70 | 6.50 | 8.46 | 0.00 | 0.00% | 0.19 | 0 | 1 | 0.65 | 0.75 | 0.03 | -0.03 | 3/19/2026 | 3/27/2026 4:00:08 PM EST |
| 40.00 | 3.40 | 3.70 | 3.55 | 3.70 | -0.88 | -19.22% | 0.09 | 26 | 22 | 0.63 | 0.54 | 0.05 | -0.04 | 3/27/2026 | 3/27/2026 4:00:08 PM EST |
| 45.00 | 1.35 | 1.85 | 1.60 | 1.72 | -0.48 | -21.82% | 0.04 | 30 | 65 | 0.58 | 0.32 | 0.04 | -0.03 | 3/27/2026 | 3/27/2026 4:00:08 PM EST |
| 50.00 | 0.45 | 0.85 | 0.65 | 0.75 | -0.25 | -25.00% | 0.01 | 7 | 76 | 0.56 | 0.16 | 0.03 | -0.02 | 3/27/2026 | 3/27/2026 4:00:08 PM EST |
| 55.00 | 0.15 | 0.60 | 0.38 | 0.34 | 0.00 | 0.00% | 0.01 | 0 | 4 | 0.60 | 0.07 | 0.02 | -0.01 | 3/24/2026 | 3/27/2026 4:00:08 PM EST |
| 60.00 | 0.05 | 0.60 | 0.33 | % | 0.01 | 0 | 0 | 0.67 | 0.03 | 0.01 | -0.01 | 3/27/2026 4:00:08 PM EST | |||
| 65.00 | 0.00 | 0.70 | 0.35 | % | 0.01 | 0 | 0 | 0.97 | 0.01 | 0.00 | 0.00 | 3/27/2026 4:00:08 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 22.50 | 0.00 | 0.75 | 0.38 | % | 0.02 | 0 | 0 | 1.29 | -0.01 | 0.00 | 0.00 | 3/27/2026 4:00:08 PM EST | |||
| 25.00 | 0.05 | 0.30 | 0.18 | % | 0.01 | 0 | 0 | 0.74 | -0.03 | 0.01 | -0.01 | 3/27/2026 4:00:08 PM EST | |||
| 30.00 | 0.40 | 0.75 | 0.58 | 0.50 | -0.01 | -1.97% | 0.02 | 1 | 4 | 0.69 | -0.10 | 0.02 | -0.02 | 3/27/2026 | 3/27/2026 4:00:08 PM EST |
| 35.00 | 1.25 | 1.75 | 1.50 | 1.60 | +0.40 | +33.34% | 0.04 | 11 | 14 | 0.63 | -0.25 | 0.03 | -0.03 | 3/27/2026 | 3/27/2026 4:00:08 PM EST |
| 40.00 | 3.50 | 3.70 | 3.60 | 3.60 | +0.85 | +30.91% | 0.09 | 111 | 26 | 0.61 | -0.46 | 0.05 | -0.04 | 3/27/2026 | 3/27/2026 4:00:08 PM EST |
| 45.00 | 6.60 | 6.80 | 6.70 | 5.40 | 0.00 | 0.00% | 0.15 | 0 | 108 | 0.58 | -0.68 | 0.04 | -0.03 | 3/26/2026 | 3/27/2026 4:00:08 PM EST |
| 50.00 | 9.90 | 11.20 | 10.55 | 9.50 | 0.00 | 0.00% | 0.21 | 0 | 3 | 0.70 | -0.84 | 0.03 | -0.02 | 3/24/2026 | 3/27/2026 4:00:08 PM EST |
| 55.00 | 14.40 | 16.00 | 15.20 | 15.20 | % | 0.28 | 1 | 0 | 0.81 | -0.93 | 0.02 | -0.01 | 3/27/2026 | 3/27/2026 4:00:08 PM EST | |
| 60.00 | 18.90 | 21.60 | 20.25 | % | 0.34 | 0 | 0 | 1.11 | -0.97 | 0.01 | -0.01 | 3/27/2026 4:00:08 PM EST | |||
| 65.00 | 24.00 | 26.70 | 25.35 | % | 0.39 | 0 | 0 | 1.26 | -0.99 | 0.00 | 0.00 | 3/27/2026 4:00:08 PM EST |