Options Chain for CATALYST PHARMACEUTICALS INC COM (CPRX) - $20.96 as of 10/27/2025 2:31:14 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7.50 | 12.40 | 16.20 | 14.30 | % | 1.91 | 0 | 0 | 3.94 | 1.00 | 0.00 | 0.00 | 10/27/2025 1:58:57 PM EST | |||
| 10.00 | 11.20 | 12.80 | 12.00 | 11.53 | 0.00 | 0.00% | 1.20 | 0 | 50 | 2.35 | 1.00 | 0.00 | 0.00 | 10/21/2025 | 10/27/2025 1:58:57 PM EST |
| 12.50 | 6.80 | 11.20 | 9.00 | 9.40 | 0.00 | 0.00% | 0.72 | 0 | 118 | 2.30 | 1.00 | 0.00 | -0.01 | 10/1/2025 | 10/27/2025 1:58:57 PM EST |
| 15.00 | 4.50 | 8.90 | 6.70 | 6.50 | 0.00 | 0.00% | 0.45 | 0 | 304 | 1.85 | 0.97 | 0.02 | -0.01 | 10/22/2025 | 10/27/2025 1:58:57 PM EST |
| 17.50 | 3.00 | 5.10 | 4.05 | 4.29 | 0.00 | 0.00% | 0.23 | 0 | 191 | 0.86 | 0.88 | 0.05 | -0.01 | 10/6/2025 | 10/27/2025 1:58:57 PM EST |
| 20.00 | 2.45 | 3.40 | 2.93 | 2.47 | 0.00 | 0.00% | 0.15 | 0 | 247 | 0.61 | 0.70 | 0.08 | -0.02 | 10/24/2025 | 10/27/2025 1:58:57 PM EST |
| 22.50 | 0.80 | 1.50 | 1.15 | 1.40 | +0.10 | +7.70% | 0.05 | 27 | 623 | 0.44 | 0.48 | 0.09 | -0.02 | 10/27/2025 | 10/27/2025 1:58:57 PM EST |
| 25.00 | 0.50 | 0.70 | 0.60 | 0.51 | -0.04 | -7.28% | 0.02 | 10 | 398 | 0.50 | 0.28 | 0.08 | -0.02 | 10/27/2025 | 10/27/2025 1:58:57 PM EST |
| 30.00 | 0.05 | 0.20 | 0.13 | 0.10 | +0.05 | +100.00% | 0.00 | 1 | 264 | 0.52 | 0.06 | 0.03 | -0.01 | 10/27/2025 | 10/27/2025 1:58:57 PM EST |
| 35.00 | 0.00 | 0.30 | 0.15 | 0.85 | 0.00 | 0.00% | 0.00 | 0 | 17 | 0.87 | 0.01 | 0.01 | 0.00 | 9/23/2025 | 10/27/2025 1:58:57 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 7.50 | 0.00 | 0.75 | 0.38 | % | 0.05 | 0 | 0 | 2.51 | 0.00 | 0.00 | 0.00 | 10/27/2025 1:58:57 PM EST | |||
| 10.00 | 0.00 | 0.75 | 0.38 | % | 0.04 | 0 | 0 | 1.92 | 0.00 | 0.00 | 0.00 | 10/27/2025 1:58:57 PM EST | |||
| 12.50 | 0.00 | 0.75 | 0.38 | 0.10 | 0.00 | 0.00% | 0.03 | 0 | 8 | 1.46 | 0.00 | 0.00 | -0.01 | 10/1/2025 | 10/27/2025 1:58:57 PM EST |
| 15.00 | 0.00 | 0.40 | 0.20 | 0.22 | -0.18 | -45.00% | 0.01 | 2 | 274 | 1.09 | -0.03 | 0.02 | -0.01 | 10/27/2025 | 10/27/2025 1:58:57 PM EST |
| 17.50 | 0.45 | 1.15 | 0.80 | 0.60 | 0.00 | 0.00% | 0.05 | 0 | 831 | 0.83 | -0.12 | 0.05 | -0.01 | 10/24/2025 | 10/27/2025 1:58:57 PM EST |
| 20.00 | 0.00 | 1.45 | 0.73 | 1.24 | 0.00 | 0.00% | 0.04 | 0 | 171 | 0.67 | -0.30 | 0.08 | -0.02 | 10/22/2025 | 10/27/2025 1:58:57 PM EST |
| 22.50 | 2.10 | 2.50 | 2.30 | 2.10 | -0.78 | -27.09% | 0.10 | 7 | 1,693 | 0.57 | -0.52 | 0.09 | -0.02 | 10/27/2025 | 10/27/2025 1:58:57 PM EST |
| 25.00 | 2.00 | 4.90 | 3.45 | 5.32 | 0.00 | 0.00% | 0.14 | 0 | 1,543 | 0.85 | -0.72 | 0.08 | -0.02 | 9/19/2025 | 10/27/2025 1:58:57 PM EST |
| 30.00 | 8.10 | 9.60 | 8.85 | 10.23 | 0.00 | 0.00% | 0.29 | 0 | 0 | 1.11 | -0.94 | 0.03 | -0.01 | 8/29/2025 | 10/27/2025 1:58:57 PM EST |
| 35.00 | 11.50 | 15.20 | 13.35 | 15.51 | 0.00 | 0.00% | 0.38 | 0 | 0 | 1.61 | -0.99 | 0.01 | 0.00 | 9/22/2025 | 10/27/2025 1:58:57 PM EST |