Options Chain for CATALYST PHARMACEUTICALS INC COM (CPRX) - $20.54 as of 9/3/2025 3:14:43 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12.50 | 6.30 | 9.20 | 7.75 | 8.00 | 0.00 | 0.00% | 0.62 | 0 | 79 | 3.39 | 1.00 | 0.00 | 0.00 | 8/28/2025 | 9/3/2025 3:59:58 PM EST |
| 15.00 | 3.80 | 6.20 | 5.00 | 6.50 | 0.00 | 0.00% | 0.33 | 0 | 124 | 2.06 | 1.00 | 0.01 | 0.00 | 8/25/2025 | 9/3/2025 3:59:58 PM EST |
| 17.50 | 1.40 | 4.20 | 2.80 | 2.70 | 0.00 | 0.00% | 0.16 | 0 | 10 | 1.71 | 0.90 | 0.07 | -0.03 | 8/12/2025 | 9/3/2025 3:59:58 PM EST |
| 20.00 | 0.50 | 1.05 | 0.78 | 0.85 | +0.15 | +21.43% | 0.04 | 22 | 191 | 0.42 | 0.55 | 0.17 | -0.04 | 9/3/2025 | 9/3/2025 3:59:58 PM EST |
| 22.50 | 0.15 | 0.20 | 0.18 | 0.15 | 0.00 | 0.00% | 0.01 | 877 | 724 | 0.51 | 0.18 | 0.12 | -0.02 | 9/3/2025 | 9/3/2025 3:59:58 PM EST |
| 25.00 | 0.00 | 0.10 | 0.05 | 0.05 | 0.00 | 0.00% | 0.00 | 233 | 1,887 | 0.69 | 0.03 | 0.03 | -0.01 | 9/3/2025 | 9/3/2025 3:59:58 PM EST |
| 30.00 | 0.00 | 0.05 | 0.03 | 0.05 | +0.02 | +66.67% | 0.00 | 2 | 268 | 0.98 | 0.00 | 0.00 | 0.00 | 9/3/2025 | 9/3/2025 3:59:58 PM EST |
| 35.00 | 0.00 | 0.35 | 0.18 | 0.15 | 0.00 | 0.00% | 0.01 | 0 | 32 | 1.85 | 0.00 | 0.00 | 0.00 | 8/15/2025 | 9/3/2025 3:59:58 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12.50 | 0.00 | 4.10 | 2.05 | % | 0.16 | 0 | 0 | 5.84 | 0.00 | 0.00 | 0.00 | 9/3/2025 3:59:58 PM EST | |||
| 15.00 | 0.00 | 4.10 | 2.05 | 0.35 | 0.00 | 0.00% | 0.14 | 0 | 1 | 4.57 | 0.00 | 0.01 | 0.00 | 3/31/2025 | 9/3/2025 3:59:58 PM EST |
| 17.50 | 0.00 | 0.25 | 0.13 | 0.15 | 0.00 | 0.00% | 0.01 | 0 | 29 | 0.72 | -0.10 | 0.07 | -0.03 | 8/21/2025 | 9/3/2025 3:59:58 PM EST |
| 20.00 | 0.60 | 1.00 | 0.80 | 0.80 | +0.30 | +60.00% | 0.04 | 2 | 710 | 0.51 | -0.45 | 0.17 | -0.04 | 9/3/2025 | 9/3/2025 3:59:58 PM EST |
| 22.50 | 1.65 | 3.80 | 2.73 | 2.75 | +0.25 | +10.00% | 0.12 | 10 | 29 | 1.41 | -0.82 | 0.12 | -0.02 | 9/3/2025 | 9/3/2025 3:59:58 PM EST |
| 25.00 | 4.10 | 6.50 | 5.30 | 4.49 | 0.00 | 0.00% | 0.21 | 0 | 29 | 1.96 | -0.97 | 0.03 | -0.01 | 8/29/2025 | 9/3/2025 3:59:58 PM EST |
| 30.00 | 9.60 | 11.50 | 10.55 | 8.70 | 0.00 | 0.00% | 0.35 | 0 | 1 | 2.59 | -1.00 | 0.00 | 0.00 | 8/4/2025 | 9/3/2025 3:59:58 PM EST |
| 35.00 | 14.60 | 15.70 | 15.15 | 9.86 | 0.00 | 0.00% | 0.43 | 0 | 0 | 2.45 | -1.00 | 0.00 | 0.00 | 3/26/2025 | 9/3/2025 3:59:58 PM EST |