BMRN Bear Put Spread Strategy
BMRN (BioMarin Pharmaceutical Inc.), in the Healthcare sector, (Biotechnology industry), listed on NASDAQ.
BioMarin Pharmaceutical Inc. develops and commercializes therapies for people with serious and life-threatening rare diseases and medical conditions. Its commercial products include Vimizim, an enzyme replacement therapy for the treatment of mucopolysaccharidosis (MPS) IV type A, a lysosomal storage disorder; Naglazyme, a recombinant form of N-acetylgalactosamine 4-sulfatase for patients with MPS VI; and Kuvan, a proprietary synthetic oral form of 6R-BH4 that is used to treat patients with phenylketonuria (PKU), an inherited metabolic disease. The company's commercial products also comprise Palynziq, a PEGylated recombinant phenylalanine ammonia lyase enzyme, which is delivered through subcutaneous injection to reduce blood Phe concentrations; Brineura, a recombinant human tripeptidyl peptidase 1 for the treatment of patients with ceroid lipofuscinosis type 2, a form of Batten disease; Voxzogo, a once daily injection analog of c-type natriuretic peptide for the treatment of achondroplasia; and Aldurazyme, a purified protein designed to be identical to a naturally occurring form of the human enzyme alpha-L-iduronidase. In addition, it develops valoctocogene roxaparvovec, an adeno associated virus vector, which is in Phase III clinical trial for the treatment of patients with severe hemophilia A; BMN 307, an AAV5 mediated gene therapy, which is in Phase 1/2 clinical trial to normalize blood Phe concentration levels in patients with PKU; and BMN 255 that is in Phase 1/2 clinical trial for treating primary hyperoxaluria. The company serves specialty pharmacies, hospitals, and non-U.S. government agencies, as well as distributors and pharmaceutical wholesalers in the United States, Europe, Latin America, and internationally. BioMarin Pharmaceutical Inc. has license and collaboration agreements with Sarepta Therapeutics, Ares Trading S.A., Catalyst Pharmaceutical Partners, Inc., and Asubio Pharma Co., Ltd.
BMRN (BioMarin Pharmaceutical Inc.) trades in the Healthcare sector, specifically Biotechnology, with a market capitalization of approximately $10.35B, a trailing P/E of 38.36, a beta of 0.23 versus the broader market, a 52-week range of 50.76-66.28, average daily share volume of 2.1M, a public-listing history dating back to 1999, approximately 3K full-time employees. These structural characteristics shape how BMRN stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.
A beta of 0.23 indicates BMRN has historically moved less than the broader market, dampening realized volatility and producing tighter expected-move bands per unit of dollar exposure. The trailing P/E of 38.36 is on the rich side, which tends to correlate with higher earnings-window IV expansion as the market debates whether forward growth supports the multiple.
What is a bear put spread on BMRN?
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 BMRN snapshot
As of May 15, 2026, spot at $51.88, ATM IV 36.50%, IV rank 33.73%, expected move 10.46%. The bear put spread on BMRN 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 63-day expiry.
Why this bear put spread structure on BMRN specifically: BMRN IV at 36.50% is mid-range versus its 1-year history, so strategy selection should anchor more to the directional thesis than to the IV regime, with a market-implied 1-standard-deviation move of approximately 10.46% (roughly $5.43 on the underlying). The 63-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated BMRN expiries trade a higher absolute premium for lower per-day decay. Position sizing on BMRN should anchor to the underlying notional of $51.88 per share and to the trader's directional view on BMRN stock.
BMRN bear put spread setup
The BMRN 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 BMRN near $51.88, the first option leg uses a $52.50 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed BMRN chain at a 63-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 BMRN shares for the stock leg in covered calls and collars).
| Action | Type | Strike / Basis | Premium (est) |
|---|---|---|---|
| Buy 1 | Put | $52.50 | $2.60 |
| Sell 1 | Put | $50.00 | $1.90 |
BMRN bear put spread risk and reward
- Net Premium / Debit
- -$70.00
- Max Profit (per contract)
- $180.00
- Max Loss (per contract)
- -$70.00
- Breakeven(s)
- $51.80
- Risk / Reward Ratio
- 2.571
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.
BMRN bear put spread payoff curve
Modeled P&L at expiration across a range of underlying prices for the bear put spread on BMRN. 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.
| Underlying Price | % From Spot | P&L at Expiration |
|---|---|---|
| $0.01 | -100.0% | +$180.00 |
| $11.48 | -77.9% | +$180.00 |
| $22.95 | -55.8% | +$180.00 |
| $34.42 | -33.7% | +$180.00 |
| $45.89 | -11.5% | +$180.00 |
| $57.36 | +10.6% | -$70.00 |
| $68.83 | +32.7% | -$70.00 |
| $80.30 | +54.8% | -$70.00 |
| $91.77 | +76.9% | -$70.00 |
| $103.24 | +99.0% | -$70.00 |
When traders use bear put spread on BMRN
Bear put spreads on BMRN reduce the cost of a bearish BMRN stock position by selling a lower-strike put; suited to moderate-decline theses where price reaches but does not vastly exceed the short strike.
BMRN thesis for this bear put spread
The market-implied 1-standard-deviation range for BMRN extends from approximately $46.45 on the downside to $57.31 on the upside. A BMRN bear put spread caps both the risk and the reward of a bearish position; relative to an outright long put on BMRN, the spread reduces the cost basis but limits the maximum profit to the strike width minus net debit. Current BMRN IV rank near 33.73% is mid-range against its 1-year distribution, so the IV signal is neutral; the bear put spread thesis on BMRN should anchor more to the directional view and the expected-move geometry. As a Healthcare name, BMRN options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to BMRN-specific events.
BMRN 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. BMRN positions also carry Healthcare sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move BMRN alongside the broader basket even when BMRN-specific fundamentals are unchanged. Long-premium structures like a bear put spread on BMRN 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 BMRN chain quotes before placing a trade.
Frequently asked questions
- What is a bear put spread on BMRN?
- A bear put spread on BMRN is the bear put spread strategy applied to BMRN (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 BMRN stock trading near $51.88, the strikes shown on this page are snapped to the nearest listed BMRN chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
- How are BMRN 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 BMRN bear put spread priced from the end-of-day chain at a 30-day expiry (ATM IV 36.50%), the computed maximum profit is $180.00 per contract and the computed maximum loss is -$70.00 per contract. Live intraday quotes will differ as the chain moves through the trading session.
- What is the breakeven for a BMRN bear put spread?
- The breakeven for the BMRN bear put spread priced on this page is roughly $51.80 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 BMRN market-implied 1-standard-deviation expected move is approximately 10.46%; 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 BMRN?
- Bear put spreads on BMRN reduce the cost of a bearish BMRN 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 BMRN implied volatility affect this bear put spread?
- BMRN ATM IV is at 36.50% with IV rank near 33.73%, which is mid-range against its 1-year history. Strategy selection depends more on directional thesis and expected move than on a strong IV signal.