Amphastar Pharmaceuticals... (AMPH)
NASDAQ: AMPH
· Real-Time Price · USD
26.75
0.23 (0.87%)
At close: Oct 03, 2025, 3:59 PM
27.20
1.68%
After-hours: Oct 03, 2025, 04:47 PM EDT
AMPH Option Overview
Overview for all option chains of AMPH. As of October 05, 2025, AMPH options have an IV of 130.5% and an IV rank of 138.68%. The volume is 4 contracts, which is 12.12% of average daily volume of 33 contracts. The volume put-call ratio is 1, indicating a neutral sentiment in the market.
Implied Volatility
Implied Volatility (30d)
130.5%IV Rank
100%Historical Volatility
27.71%IV Low
39.06% on Nov 11, 2024IV High
105% on Sep 22, 2025Open Interest (OI)
Today's Open Interest
1,261Put-Call Ratio
0.22Put Open Interest
227Call Open Interest
1,034Open Interest Avg (30-day)
938Today vs Open Interest Avg (30-day)
134.43%Option Volume
Today's Volume
4Put-Call Ratio
1Put Volume
2Call Volume
2Volume Avg (30-day)
33Today vs Volume Avg (30-day)
12.12%Option Chain Statistics
This table provides a comprehensive overview of all AMPH options grouped by their expiration dates.
| Expiration | Call Vol | Put Vol | P/C Vol | Call OI | Put OI | P/C OI | Implied Volatility | Max Pain |
| Oct 17, 2025 | 0 | 0 | 0 | 9 | 22 | 2.44 | 130.5% | 30 |
| Nov 21, 2025 | 0 | 0 | 0 | 575 | 22 | 0.04 | 81.05% | 30 |
| Dec 19, 2025 | 1 | 2 | 2 | 369 | 156 | 0.42 | 93.75% | 30 |
| Mar 20, 2026 | 1 | 0 | 0 | 81 | 27 | 0.33 | 57.4% | 22.5 |