LGN Butterfly Strategy
LGN (Legence Corp. Class A Common stock), in the Industrials sector, (Engineering & Construction industry), listed on NASDAQ.
Legence Corp. provides engineering, installation, and maintenance services for mission-critical systems in buildings in United States. The company operates through two segments, Engineering & Consulting, and Installation & Maintenance. The Engineering & Consulting segment designs HVAC and other MEP systems for buildings, develops strategies to help reduce energy usage and make buildings more sustainable and provides program and project management services for client's installation and retrofit projects. It offers engineering and design, and program and project management services. The Installation & Maintenance segment fabricates and installs HVAC systems, process piping and other MEP systems in new and existing industrial, commercial and institutional buildings and provides ongoing preventative and corrective maintenance services for those systems. The company serves data centers, semiconductors, precision manufacturing, life sciences, healthcare, education, and commercial real estate industries, as well as public sector.
LGN (Legence Corp. Class A Common stock) trades in the Industrials sector, specifically Engineering & Construction, with a market capitalization of approximately $10.67B, a beta of 3.80 versus the broader market, a 52-week range of 26.96-102.635, average daily share volume of 1.6M, a public-listing history dating back to 2000, approximately 6K full-time employees. These structural characteristics shape how LGN stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.
A beta of 3.80 indicates LGN has historically moved more than the broader market, amplifying both the directional payoff and the realized volatility relative to an index-equivalent position.
What is a butterfly on LGN?
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 LGN snapshot
As of May 15, 2026, spot at $82.46, ATM IV 70.00%, expected move 20.07%. The butterfly on LGN 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 LGN specifically: IV rank is unavailable in the current snapshot, so regime-based timing for LGN is inferred from ATM IV at 70.00% alone, with a market-implied 1-standard-deviation move of approximately 20.07% (roughly $16.55 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 LGN expiries trade a higher absolute premium for lower per-day decay. Position sizing on LGN should anchor to the underlying notional of $82.46 per share and to the trader's directional view on LGN stock.
LGN butterfly setup
The LGN 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 LGN near $82.46, the first option leg uses a $80.00 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed LGN 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 LGN shares for the stock leg in covered calls and collars).
| Action | Type | Strike / Basis | Premium (est) |
|---|---|---|---|
| Buy 1 | Call | $80.00 | $9.25 |
| Sell 2 | Call | $80.00 | $9.25 |
| Buy 1 | Call | $85.00 | $6.80 |
LGN butterfly risk and reward
- Net Premium / Debit
- +$245.00
- Max Profit (per contract)
- $245.00
- Max Loss (per contract)
- -$255.00
- Breakeven(s)
- $82.45
- Risk / Reward Ratio
- 0.961
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.
LGN butterfly payoff curve
Modeled P&L at expiration across a range of underlying prices for the butterfly on LGN. 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% | +$245.00 |
| $18.24 | -77.9% | +$245.00 |
| $36.47 | -55.8% | +$245.00 |
| $54.70 | -33.7% | +$245.00 |
| $72.94 | -11.6% | +$245.00 |
| $91.17 | +10.6% | -$255.00 |
| $109.40 | +32.7% | -$255.00 |
| $127.63 | +54.8% | -$255.00 |
| $145.86 | +76.9% | -$255.00 |
| $164.09 | +99.0% | -$255.00 |
When traders use butterfly on LGN
Butterflies on LGN are pinning bets - traders use them when they expect LGN 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.
LGN thesis for this butterfly
The market-implied 1-standard-deviation range for LGN extends from approximately $65.91 on the downside to $99.01 on the upside. A LGN long call butterfly is a pinning play: it pays maximum at the middle strike if LGN settles there at expiration, with the wing legs capping both the cost and the maximum loss to the net debit. As a Industrials name, LGN options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to LGN-specific events.
LGN 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. LGN positions also carry Industrials sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move LGN alongside the broader basket even when LGN-specific fundamentals are unchanged. Always rebuild the position from current LGN chain quotes before placing a trade.
Frequently asked questions
- What is a butterfly on LGN?
- A butterfly on LGN is the butterfly strategy applied to LGN (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 LGN stock trading near $82.46, the strikes shown on this page are snapped to the nearest listed LGN chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
- How are LGN 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 LGN butterfly priced from the end-of-day chain at a 30-day expiry (ATM IV 70.00%), the computed maximum profit is $245.00 per contract and the computed maximum loss is -$255.00 per contract. Live intraday quotes will differ as the chain moves through the trading session.
- What is the breakeven for a LGN butterfly?
- The breakeven for the LGN butterfly priced on this page is roughly $82.45 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 LGN market-implied 1-standard-deviation expected move is approximately 20.07%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
- When should you consider a butterfly on LGN?
- Butterflies on LGN are pinning bets - traders use them when they expect LGN 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 LGN implied volatility affect this butterfly?
- Current LGN ATM IV is 70.00%; IV rank context is unavailable in the current snapshot.