ENGN Butterfly Strategy
ENGN (enGene Holdings Inc.), in the Healthcare sector, (Biotechnology industry), listed on NASDAQ.
enGene Holdings Inc., through its subsidiary enGene, Inc., operates as a clinical-stage biotechnology company that develops genetic medicines through the delivery of therapeutics to mucosal tissues and other organs. Its lead product candidate is EG-70 (detalimogene voraplasmid), which is a non-viral immunotherapy to treat non-muscle invasive bladder cancer patients with carcinoma-in-situ (Cis), who are unresponsive to treatment with Bacillus Calmette-Guérin. The company was founded in 2023 and is based in Saint-Laurent, Canada.
ENGN (enGene Holdings Inc.) trades in the Healthcare sector, specifically Biotechnology, with a market capitalization of approximately $78.8M, a beta of -0.01 versus the broader market, a 52-week range of 1.4-12.25, average daily share volume of 1.2M, a public-listing history dating back to 2022, approximately 56 full-time employees. These structural characteristics shape how ENGN stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.
A beta of -0.01 indicates ENGN has historically moved less than the broader market, dampening realized volatility and producing tighter expected-move bands per unit of dollar exposure.
What is a butterfly on ENGN?
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.
Current ENGN snapshot
As of May 15, 2026, spot at $1.71, ATM IV 93.80%, expected move 26.89%. The butterfly on ENGN 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 butterfly structure on ENGN specifically: IV rank is unavailable in the current snapshot, so regime-based timing for ENGN is inferred from ATM IV at 93.80% alone, with a market-implied 1-standard-deviation move of approximately 26.89% (roughly $0.46 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 ENGN expiries trade a higher absolute premium for lower per-day decay. Position sizing on ENGN should anchor to the underlying notional of $1.71 per share and to the trader's directional view on ENGN stock.
ENGN butterfly setup
The ENGN butterfly below is built from the end-of-day chain, with each option leg priced at the bid/ask midpoint of its listed strike. With ENGN near $1.71, the first option leg uses a $1.62 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed ENGN 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 ENGN shares for the stock leg in covered calls and collars).
| Action | Type | Strike / Basis | Premium (est) |
|---|---|---|---|
| Buy 1 | Call | $1.62 | N/A |
| Sell 2 | Call | $1.71 | N/A |
| Buy 1 | Call | $1.80 | N/A |
ENGN butterfly 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 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.
ENGN butterfly payoff curve
Modeled P&L at expiration across a range of underlying prices for the butterfly on ENGN. 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 butterfly on ENGN
Butterflies on ENGN are pinning bets - traders use them when they expect ENGN 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.
ENGN thesis for this butterfly
The market-implied 1-standard-deviation range for ENGN extends from approximately $1.25 on the downside to $2.17 on the upside. A ENGN long call butterfly is a pinning play: it pays maximum at the middle strike if ENGN settles there at expiration, with the wing legs capping both the cost and the maximum loss to the net debit. As a Healthcare name, ENGN options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to ENGN-specific events.
ENGN 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. ENGN positions also carry Healthcare sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move ENGN alongside the broader basket even when ENGN-specific fundamentals are unchanged. Always rebuild the position from current ENGN chain quotes before placing a trade.
Frequently asked questions
- What is a butterfly on ENGN?
- A butterfly on ENGN is the butterfly strategy applied to ENGN (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 ENGN stock trading near $1.71, the strikes shown on this page are snapped to the nearest listed ENGN chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
- How are ENGN 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 ENGN butterfly priced from the end-of-day chain at a 30-day expiry (ATM IV 93.80%), 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 ENGN butterfly?
- The breakeven for the ENGN butterfly 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 ENGN market-implied 1-standard-deviation expected move is approximately 26.89%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
- When should you consider a butterfly on ENGN?
- Butterflies on ENGN are pinning bets - traders use them when they expect ENGN 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 ENGN implied volatility affect this butterfly?
- Current ENGN ATM IV is 93.80%; IV rank context is unavailable in the current snapshot.