Options Chain for CASTLE BIOSCIENCES INC COM (CSTL) - $27.12 as of 3/9/2026 1:31:38 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 17.50 | 8.10 | 10.00 | 9.05 | 13.11 | 0.00 | 0.00% | 0.52 | 0 | 10 | 2.16 | 1.00 | 0.00 | 0.00 | 2/24/2026 | 3/9/2026 4:00:00 PM EST |
| 20.00 | 5.30 | 8.10 | 6.70 | % | 0.34 | 0 | 0 | 2.21 | 0.99 | 0.01 | -0.01 | 3/9/2026 4:00:00 PM EST | |||
| 22.50 | 3.10 | 5.20 | 4.15 | % | 0.18 | 0 | 0 | 1.33 | 0.93 | 0.04 | -0.02 | 3/9/2026 4:00:00 PM EST | |||
| 25.00 | 1.20 | 4.00 | 2.60 | 3.60 | 0.00 | 0.00% | 0.10 | 0 | 7 | 1.60 | 0.74 | 0.09 | -0.05 | 3/2/2026 | 3/9/2026 4:00:00 PM EST |
| 30.00 | 0.00 | 1.00 | 0.50 | 0.75 | 0.00 | 0.00% | 0.02 | 0 | 181 | 1.10 | 0.20 | 0.09 | -0.04 | 3/4/2026 | 3/9/2026 4:00:00 PM EST |
| 35.00 | 0.00 | 0.75 | 0.38 | 0.05 | 0.00 | 0.00% | 0.01 | 0 | 100 | 1.56 | 0.01 | 0.01 | -0.01 | 3/6/2026 | 3/9/2026 4:00:00 PM EST |
| 40.00 | 0.00 | 2.15 | 1.08 | 4.64 | 0.00 | 0.00% | 0.03 | 0 | 1 | 2.98 | 0.00 | 0.00 | 0.00 | 1/23/2026 | 3/9/2026 4:00:00 PM EST |
| 45.00 | 0.00 | 1.10 | 0.55 | 0.38 | 0.00 | 0.00% | 0.01 | 0 | 17 | 2.68 | 0.00 | 0.00 | 0.00 | 2/12/2026 | 3/9/2026 4:00:00 PM EST |
| 50.00 | 0.00 | 2.15 | 1.08 | % | 0.02 | 0 | 0 | 3.76 | 0.00 | 0.00 | 0.00 | 3/9/2026 4:00:00 PM EST | |||
| 55.00 | 0.00 | 2.60 | 1.30 | % | 0.02 | 0 | 0 | 4.35 | 0.00 | 0.00 | 0.00 | 3/9/2026 4:00:00 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 17.50 | 0.00 | 0.75 | 0.38 | % | 0.02 | 0 | 0 | 2.48 | 0.00 | 0.00 | 0.00 | 3/9/2026 4:00:00 PM EST | |||
| 20.00 | 0.00 | 1.00 | 0.50 | % | 0.03 | 0 | 0 | 2.13 | -0.01 | 0.01 | -0.01 | 3/9/2026 4:00:00 PM EST | |||
| 22.50 | 0.00 | 1.15 | 0.58 | % | 0.03 | 0 | 0 | 1.68 | -0.07 | 0.04 | -0.02 | 3/9/2026 4:00:00 PM EST | |||
| 25.00 | 0.00 | 1.60 | 0.80 | 0.35 | 0.00 | 0.00% | 0.03 | 0 | 3 | 1.38 | -0.26 | 0.09 | -0.05 | 2/27/2026 | 3/9/2026 4:00:00 PM EST |
| 30.00 | 2.90 | 4.80 | 3.85 | 3.50 | +0.50 | +16.67% | 0.13 | 1 | 78 | 1.57 | -0.80 | 0.09 | -0.04 | 3/9/2026 | 3/9/2026 4:00:00 PM EST |
| 35.00 | 7.10 | 9.30 | 8.20 | 6.98 | 0.00 | 0.00% | 0.23 | 0 | 8 | 1.95 | -0.99 | 0.01 | -0.01 | 2/23/2026 | 3/9/2026 4:00:00 PM EST |
| 40.00 | 12.10 | 14.80 | 13.45 | % | 0.34 | 0 | 0 | 2.78 | -1.00 | 0.00 | 0.00 | 3/9/2026 4:00:00 PM EST | |||
| 45.00 | 16.90 | 20.10 | 18.50 | % | 0.41 | 0 | 0 | 3.39 | -1.00 | 0.00 | 0.00 | 3/9/2026 4:00:00 PM EST | |||
| 50.00 | 21.90 | 25.10 | 23.50 | % | 0.47 | 0 | 0 | 3.75 | -1.00 | 0.00 | 0.00 | 3/9/2026 4:00:00 PM EST | |||
| 55.00 | 26.60 | 30.10 | 28.35 | % | 0.52 | 0 | 0 | 4.06 | -1.00 | 0.00 | 0.00 | 3/9/2026 4:00:00 PM EST |