Options Chain for AMPHASTAR PHARMACEUTICALS INC COM (AMPH) - $23.35 as of 9/21/2026 7:09:49 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 12.50 | 10.60 | 14.90 | 12.75 | % | 1.02 | 0 | 0 | 3.66 | 1.00 | 0.00 | 0.00 | 9/21/2026 12:59:06 PM EST | |||
| 15.00 | 8.10 | 12.40 | 10.25 | % | 0.68 | 0 | 0 | 2.94 | 1.00 | 0.00 | 0.00 | 9/21/2026 12:59:06 PM EST | |||
| 17.50 | 5.90 | 9.40 | 7.65 | % | 0.44 | 0 | 0 | 2.06 | 0.99 | 0.01 | 0.00 | 9/21/2026 12:59:06 PM EST | |||
| 20.00 | 5.00 | 5.80 | 5.40 | 5.70 | % | 0.27 | 10 | 0 | 0.96 | 0.93 | 0.03 | -0.01 | 9/21/2026 | 9/21/2026 12:59:06 PM EST | |
| 22.50 | 2.65 | 3.50 | 3.08 | 3.30 | +1.22 | +58.66% | 0.14 | 1 | 5 | 0.71 | 0.80 | 0.07 | -0.02 | 9/21/2026 | 9/21/2026 12:59:06 PM EST |
| 25.00 | 1.35 | 1.45 | 1.40 | 1.45 | +0.80 | +123.08% | 0.06 | 11 | 10 | 0.50 | 0.55 | 0.12 | -0.03 | 9/21/2026 | 9/21/2026 12:59:06 PM EST |
| 30.00 | 0.20 | 0.25 | 0.23 | 0.22 | +0.02 | +10.00% | 0.01 | 6,292 | 2 | 0.56 | 0.20 | 0.06 | -0.03 | 9/21/2026 | 9/21/2026 12:59:06 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 | 0.05 | 0.03 | % | 0.00 | 0 | 0 | 1.34 | 0.00 | 0.00 | 0.00 | 9/21/2026 12:59:06 PM EST | |||
| 15.00 | 0.00 | 3.40 | 1.70 | % | 0.11 | 0 | 0 | 3.76 | 0.00 | 0.00 | 0.00 | 9/21/2026 12:59:06 PM EST | |||
| 17.50 | 0.00 | 3.40 | 1.70 | 2.90 | 0.00 | 0.00% | 0.10 | 0 | 1 | 3.05 | -0.01 | 0.01 | 0.00 | 9/3/2026 | 9/21/2026 12:59:06 PM EST |
| 20.00 | 0.00 | 3.00 | 1.50 | % | 0.07 | 0 | 0 | 2.25 | -0.07 | 0.03 | -0.01 | 9/21/2026 12:59:06 PM EST | |||
| 22.50 | 0.10 | 3.50 | 1.80 | 0.70 | 0.00 | 0.00% | 0.08 | 0 | 1 | 1.12 | -0.20 | 0.07 | -0.02 | 9/17/2026 | 9/21/2026 12:59:06 PM EST |
| 25.00 | 0.00 | 3.90 | 1.95 | % | 0.08 | 0 | 0 | 1.55 | -0.45 | 0.12 | -0.03 | 9/21/2026 12:59:06 PM EST | |||
| 30.00 | 4.00 | 6.60 | 5.30 | % | 0.18 | 0 | 0 | 1.32 | -0.80 | 0.06 | -0.03 | 9/21/2026 12:59:06 PM EST |