AMPH Bear Put Spread Strategy
AMPH (Amphastar Pharmaceuticals, Inc.), in the Healthcare sector, (Drug Manufacturers - Specialty & Generic industry), listed on NASDAQ.
Amphastar Pharmaceuticals, Inc., a bio-pharmaceutical company, develops, manufactures, markets, and sells generic and proprietary injectable, inhalation, and intranasal products in the United States, China, and France. The company operates through two segments, Finished Pharmaceutical Products and API. It offers Primatene Mist, an over-the-counter epinephrine inhalation product for the temporary relief of mild symptoms of intermittent asthma; Enoxaparin, a low molecular weight heparin to prevent and treat deep vein thrombosis; Naloxone for opioid overdose; Glucagon for injection emergency kit; and Cortrosyn, a lyophilized powder for use as a diagnostic agent in the screening of patients with adrenocortical insufficiency. The company also provides Amphadase, a bovine-sourced hyaluronidase injection to absorb and disperse other injected drugs; Epinephrine injection for the emergency treatment of allergic reactions; lidocaine jelly, an anesthetic product for urological procedures; lidocaine topical solution for various procedures; phytonadione injection, a vitamin K1 injection for newborn babies; emergency syringe products for emergency use in hospital settings; morphine injection for use with patient controlled analgesia pumps; and lorazepam injection for surgery and medical procedures. In addition, it offers neostigmine methylsulfate injection to treat myasthenia gravis and to reverse the effects of muscle relaxants; and Isoproterenol hydrochloride injection for mild or transient episodes of heart block. Further, the company distributes recombinant human insulin active pharmaceutical ingredients (API) and porcine insulin API.
AMPH (Amphastar Pharmaceuticals, Inc.) trades in the Healthcare sector, specifically Drug Manufacturers - Specialty & Generic, with a market capitalization of approximately $807.8M, a trailing P/E of 10.48, a beta of 0.97 versus the broader market, a 52-week range of 17.03-31.26, average daily share volume of 570K, a public-listing history dating back to 2014, approximately 2K full-time employees. These structural characteristics shape how AMPH stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.
A beta of 0.97 places AMPH roughly in line with broader market moves, so the strategy payoff and realized volatility track the index-equivalent baseline. The trailing P/E of 10.48 is on the value side, where IV often compresses outside event windows because forward growth expectations are already discounted into the share price.
What is a bear put spread on AMPH?
A bear put spread buys an at-the-money put and sells an out-of-the-money put at a lower strike for defined risk and defined reward bounded by the strike width.
Current AMPH snapshot
As of May 15, 2026, spot at $16.84, ATM IV 94.50%, IV rank 17.25%, expected move 27.09%. The bear put spread on AMPH below is built from the same end-of-day chain, with strikes snapped to listed contracts and premiums pulled from the bid/ask midpoint at a 34-day expiry.
Why this bear put spread structure on AMPH specifically: AMPH IV at 94.50% is on the cheap side of its 1-year range, which favors premium-buying structures like a AMPH bear put spread, with a market-implied 1-standard-deviation move of approximately 27.09% (roughly $4.56 on the underlying). The 34-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated AMPH expiries trade a higher absolute premium for lower per-day decay. Position sizing on AMPH should anchor to the underlying notional of $16.84 per share and to the trader's directional view on AMPH stock.
AMPH bear put spread setup
The AMPH bear put spread below is built from the end-of-day chain, with each option leg priced at the bid/ask midpoint of its listed strike. With AMPH near $16.84, the first option leg uses a $16.84 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed AMPH chain at a 34-day expiry; the cross-strike IV skew is reflected directly in the per-leg values rather than approximated. Quantity sizing assumes one contract per option leg (or 100 AMPH shares for the stock leg in covered calls and collars).
| Action | Type | Strike / Basis | Premium (est) |
|---|---|---|---|
| Buy 1 | Put | $16.84 | N/A |
| Sell 1 | Put | $16.00 | N/A |
AMPH bear put spread risk and reward
- Net Premium / Debit
- N/A
- Max Profit (per contract)
- Unbounded
- Max Loss (per contract)
- Unbounded
- Breakeven(s)
- None on modeled curve
- Risk / Reward Ratio
- N/A
Max profit equals strike width minus net debit times 100; max loss equals net debit times 100. Breakeven is long-put strike minus net debit.
AMPH bear put spread payoff curve
Modeled P&L at expiration across a range of underlying prices for the bear put spread on AMPH. Each row is one sampled price point from the computed payoff curve; the full curve uses 200 price points internally before being summarized into 10 rows here.
When traders use bear put spread on AMPH
Bear put spreads on AMPH reduce the cost of a bearish AMPH stock position by selling a lower-strike put; suited to moderate-decline theses where price reaches but does not vastly exceed the short strike.
AMPH thesis for this bear put spread
The market-implied 1-standard-deviation range for AMPH extends from approximately $12.28 on the downside to $21.40 on the upside. A AMPH bear put spread caps both the risk and the reward of a bearish position; relative to an outright long put on AMPH, the spread reduces the cost basis but limits the maximum profit to the strike width minus net debit. Current AMPH IV rank near 17.25% sits in the lower third of its 1-year distribution, where IV often re-expands toward the mean; this favors premium-buying structures and disadvantages premium-selling structures on AMPH at 94.50%. As a Healthcare name, AMPH options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to AMPH-specific events.
AMPH bear put spread positions are structurally moderately bearish; the modeled P&L assumes European-style exercise at expiration and ignores early assignment, transaction costs, dividends paid before expiry on the stock leg (when present), and the bid-ask spread on the listed chain. AMPH positions also carry Healthcare sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move AMPH alongside the broader basket even when AMPH-specific fundamentals are unchanged. Long-premium structures like a bear put spread on AMPH are particularly exposed to IV-crush risk through scheduled events (earnings, FDA decisions, central-bank meetings) where IV typically contracts post-event regardless of the directional outcome. Always rebuild the position from current AMPH chain quotes before placing a trade.
Frequently asked questions
- What is a bear put spread on AMPH?
- A bear put spread on AMPH is the bear put spread strategy applied to AMPH (stock). The strategy is structurally moderately bearish: A bear put spread buys an at-the-money put and sells an out-of-the-money put at a lower strike for defined risk and defined reward bounded by the strike width. With AMPH stock trading near $16.84, the strikes shown on this page are snapped to the nearest listed AMPH chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
- How are AMPH bear put spread max profit and max loss calculated?
- Max profit equals strike width minus net debit times 100; max loss equals net debit times 100. Breakeven is long-put strike minus net debit. For the AMPH bear put spread priced from the end-of-day chain at a 30-day expiry (ATM IV 94.50%), the computed maximum profit is unbounded per contract and the computed maximum loss is unbounded per contract. Live intraday quotes will differ as the chain moves through the trading session.
- What is the breakeven for a AMPH bear put spread?
- The breakeven for the AMPH bear put spread priced on this page is no defined breakeven on the modeled curve at expiration, derived from end-of-day chain premiums. Breakeven is the underlying price at which the strategy's P&L crosses zero ignoring transaction costs and assignment risk. The current AMPH market-implied 1-standard-deviation expected move is approximately 27.09%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
- When should you consider a bear put spread on AMPH?
- Bear put spreads on AMPH reduce the cost of a bearish AMPH stock position by selling a lower-strike put; suited to moderate-decline theses where price reaches but does not vastly exceed the short strike.
- How does current AMPH implied volatility affect this bear put spread?
- AMPH ATM IV is at 94.50% with IV rank near 17.25%, which is on the low end of its 1-year range. Premium-buying structures (long call, long put, debit spreads) are relatively cheap in this regime; premium-selling structures collect less credit per unit risk.