How are OMER butterfly max profit and max loss calculated?

Max profit equals the wing width minus net debit times 100 (reached when the underlying pins the middle strike); max loss equals the net debit times 100. Two breakevens at lower-wing plus debit and upper-wing minus debit. For the OMER butterfly priced from the August 14, 2026 end-of-day chain at a 30-day expiry (ATM IV 66.10%), the computed maximum profit is $73.07 per contract and the computed maximum loss is -$22.50 per contract. Live intraday quotes will differ as the chain moves through the trading session.

What is the breakeven for a OMER butterfly?

The breakeven for the OMER butterfly priced on this page is roughly $16.23 and $17.78 at expiration, derived from the August 14, 2026 end-of-day chain's premiums. Breakeven is the underlying price at which the strategy's P&L crosses zero ignoring transaction costs and assignment risk. The OMER market-implied 1-standard-deviation expected move in the same options snapshot is approximately 18.95%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.

How does current OMER implied volatility affect this butterfly?

OMER ATM IV is at 66.10% with IV rank near 6.53%, 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.

OMER Butterfly Strategy

OMER (Omeros Corporation), in the Healthcare sector, (Biotechnology industry), listed on NASDAQ.

Omeros Corporation is a biopharmaceutical firm with commercialized products, actively engaged in the discovery, development, and market introduction of both small-molecule and protein-based therapies, including treatments for rare diseases. The company's therapeutic endeavors primarily focus on inflammatory conditions, illnesses mediated by the complement system, cancers linked to immune system dysregulation, and disorders characterized by addiction or compulsion. Its robust clinical pipeline features several promising candidates. Narsoplimab (also known as OMS721 or MASP-2), a leading asset, has successfully concluded pivotal trials for hematopoietic stem-cell transplant-associated thrombotic microangiopathy (HSCT-TMA). This drug is also currently undergoing Phase III clinical evaluation for immunoglobulin A nephropathy (IgAN) and atypical hemolytic uremic syndrome (aHUS), in addition to a Phase II trial investigating its potential for treating COVID-19. Further expanding its clinical portfolio, Omeros is developing PPAR? (OMS405) in Phase II for opioid and nicotine dependence.

OMER (Omeros Corporation) trades in the Healthcare sector, specifically Biotechnology, with a market capitalization of approximately $992.3M, a trailing P/E of 7.92, a beta of 2.54 versus the broader market, a 52-week range of 3.94-17.65, average daily share volume of 1.7M, a public-listing history dating back to 2009, approximately 175 full-time employees. These structural characteristics shape how OMER stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.

A beta of 2.54 indicates OMER has historically moved more than the broader market, amplifying both the directional payoff and the realized volatility relative to an index-equivalent position. The trailing P/E of 7.92 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 butterfly on OMER?

A long call butterfly buys one lower-strike call, sells two ATM calls, and buys one higher-strike call, paying a small net debit for a defined-risk position that maxes out if the underlying pins the middle strike at expiration.

OMER snapshot

As of August 14, 2026, spot at $17.30, ATM IV 66.10%, IV rank 6.53%, expected move 18.95%. The butterfly on OMER below is built from the August 14, 2026 end-of-day chain, with strikes snapped to listed contracts and premiums pulled from the bid/ask midpoint at a 35-day expiry.

Why this butterfly structure on OMER specifically: OMER IV at 66.10% is on the cheap side of its 1-year range, which favors premium-buying structures like a OMER butterfly, with a market-implied 1-standard-deviation move of approximately 18.95% (roughly $3.28 on the underlying). The 35-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated OMER expiries trade a higher absolute premium for lower per-day decay. Position sizing on OMER should anchor to the underlying notional of $17.30 per share and to the trader's directional view on OMER stock.

OMER butterfly setup

The OMER butterfly below is built from the August 14, 2026 end-of-day chain, with each option leg priced at the bid/ask midpoint of its listed strike. With OMER at $17.30 on that close, the first option leg uses a $16.00 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed OMER chain at a 35-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 OMER shares for the stock leg in covered calls and collars).

Action	Type	Strike / Basis	Premium (est)
Buy 1	Call	$16.00	$2.18
Sell 2	Call	$17.00	$1.53
Buy 1	Call	$18.00	$1.10

OMER butterfly risk and reward

Net Premium / Debit: -$22.50
Max Profit (per contract): $73.07
Max Loss (per contract): -$22.50
Breakeven(s): $16.23, $17.78
Risk / Reward Ratio: 3.248

Max profit equals the wing width minus net debit times 100 (reached when the underlying pins the middle strike); max loss equals the net debit times 100. Two breakevens at lower-wing plus debit and upper-wing minus debit.

OMER butterfly payoff curve

Modeled P&L at expiration across a range of underlying prices for the butterfly on OMER. 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.

P&L at expiration across the modeled underlying-price range. Green shading marks profitable regions, red shading marks loss regions. Dotted purple verticals mark breakevens; the solid dark vertical marks current spot.

Underlying Price	% From Spot	P&L at Expiration
$0.01	-99.9%	-$22.50
$3.83	-77.8%	-$22.50
$7.66	-55.7%	-$22.50
$11.48	-33.6%	-$22.50
$15.31	-11.5%	-$22.50
$19.13	+10.6%	-$22.50
$22.95	+32.7%	-$22.50
$26.78	+54.8%	-$22.50
$30.60	+76.9%	-$22.50
$34.43	+99.0%	-$22.50

When traders use butterfly on OMER

Butterflies on OMER are pinning bets - traders use them when they expect OMER to settle near a specific level at expiration (often the prior close, a round number, or the max-pain strike) and want defined-risk exposure to that outcome.

OMER thesis for this butterfly

The market-implied 1-standard-deviation range for OMER extends from approximately $14.02 on the downside to $20.58 on the upside. A OMER long call butterfly is a pinning play: it pays maximum at the middle strike if OMER settles there at expiration, with the wing legs capping both the cost and the maximum loss to the net debit. Current OMER IV rank near 6.53% 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 OMER at 66.10%. As a Healthcare name, OMER options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to OMER-specific events.

OMER butterfly positions are structurally neutral / pin (limited-risk, limited-reward); 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. OMER positions also carry Healthcare sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move OMER alongside the broader basket even when OMER-specific fundamentals are unchanged. Always rebuild the position from current OMER chain quotes before placing a trade.

Frequently asked questions

What is a butterfly on OMER?: A butterfly on OMER is the butterfly strategy applied to OMER (stock). The strategy is structurally neutral / pin (limited-risk, limited-reward): A long call butterfly buys one lower-strike call, sells two ATM calls, and buys one higher-strike call, paying a small net debit for a defined-risk position that maxes out if the underlying pins the middle strike at expiration. With OMER stock at $17.30 on the August 14, 2026 close, the strikes shown on this page are snapped to the nearest listed OMER chain strike and the premiums come straight from that session's bid/ask midpoint.
How are OMER butterfly max profit and max loss calculated?: Max profit equals the wing width minus net debit times 100 (reached when the underlying pins the middle strike); max loss equals the net debit times 100. Two breakevens at lower-wing plus debit and upper-wing minus debit. For the OMER butterfly priced from the August 14, 2026 end-of-day chain at a 30-day expiry (ATM IV 66.10%), the computed maximum profit is $73.07 per contract and the computed maximum loss is -$22.50 per contract. Live intraday quotes will differ as the chain moves through the trading session.
What is the breakeven for a OMER butterfly?: The breakeven for the OMER butterfly priced on this page is roughly $16.23 and $17.78 at expiration, derived from the August 14, 2026 end-of-day chain's premiums. Breakeven is the underlying price at which the strategy's P&L crosses zero ignoring transaction costs and assignment risk. The OMER market-implied 1-standard-deviation expected move in the same options snapshot is approximately 18.95%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
When should you consider a butterfly on OMER?: Butterflies on OMER are pinning bets - traders use them when they expect OMER to settle near a specific level at expiration (often the prior close, a round number, or the max-pain strike) and want defined-risk exposure to that outcome.
How does current OMER implied volatility affect this butterfly?: OMER ATM IV is at 66.10% with IV rank near 6.53%, 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.