SIGI Butterfly Strategy
SIGI (Selective Insurance Group, Inc.), in the Financial Services sector, (Insurance - Property & Casualty industry), listed on NASDAQ.
Selective Insurance Group, Inc. (SIGI) is a U.S.-based company that delivers a wide array of insurance products and services. Its business operations are structured across four primary divisions: Standard Commercial Lines, Standard Personal Lines, Excess & Surplus Lines (E&S), and Investments. The company's insurance offerings include comprehensive property coverage, safeguarding clients from financial repercussions due to accidental damage to real estate, personal possessions, or the resulting loss of earnings. It also provides casualty insurance, which addresses financial liabilities stemming from employee work-related injuries and third-party bodily harm or property damage. Additionally, flood insurance is a key component of its product suite. Beyond its core underwriting activities, Selective actively manages a diverse investment portfolio.
SIGI (Selective Insurance Group, Inc.) trades in the Financial Services sector, specifically Insurance - Property & Casualty, with a market capitalization of approximately $5.77B, a trailing P/E of 12.83, a beta of 0.31 versus the broader market, a 52-week range of 71.75-97.32, average daily share volume of 584K, a public-listing history dating back to 1980, approximately 3K full-time employees. These structural characteristics shape how SIGI stock options price implied volatility around earnings windows, capital events, and macro-driven sector rotations.
A beta of 0.31 indicates SIGI has historically moved less than the broader market, dampening realized volatility and producing tighter expected-move bands per unit of dollar exposure. SIGI pays a dividend, which adjusts put-call parity and shifts the ex-dividend pricing across the listed chain.
What is a butterfly on SIGI?
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 SIGI snapshot
As of June 30, 2026, spot at $97.27, ATM IV 103.20%, IV rank 19.86%, expected move 29.59%. The butterfly on SIGI 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 17-day expiry.
Why this butterfly structure on SIGI specifically: SIGI IV at 103.20% is on the cheap side of its 1-year range, which favors premium-buying structures like a SIGI butterfly, with a market-implied 1-standard-deviation move of approximately 29.59% (roughly $28.78 on the underlying). The 17-day window matched to the front-month expiry keeps theta exposure bounded while still capturing the post-snapshot move; longer-dated SIGI expiries trade a higher absolute premium for lower per-day decay. Position sizing on SIGI should anchor to the underlying notional of $97.27 per share and to the trader's directional view on SIGI stock.
SIGI butterfly setup
The SIGI 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 SIGI near $97.27, the first option leg uses a $92.41 strike; additional legs (when the strategy has them) anchor to spot-relative offsets. Premiums come from the bid/ask midpoint on the listed SIGI chain at a 17-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 SIGI shares for the stock leg in covered calls and collars).
| Action | Type | Strike / Basis | Premium (est) |
|---|---|---|---|
| Buy 1 | Call | $92.41 | N/A |
| Sell 2 | Call | $97.27 | N/A |
| Buy 1 | Call | $102.13 | N/A |
SIGI 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.
SIGI butterfly payoff curve
Modeled P&L at expiration across a range of underlying prices for the butterfly on SIGI. 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 SIGI
Butterflies on SIGI are pinning bets - traders use them when they expect SIGI 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.
SIGI thesis for this butterfly
The market-implied 1-standard-deviation range for SIGI extends from approximately $68.49 on the downside to $126.05 on the upside. A SIGI long call butterfly is a pinning play: it pays maximum at the middle strike if SIGI settles there at expiration, with the wing legs capping both the cost and the maximum loss to the net debit. Current SIGI IV rank near 19.86% 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 SIGI at 103.20%. As a Financial Services name, SIGI options can move on sector-level news flow (peer earnings, regulatory updates, industry-specific macro data) in addition to SIGI-specific events.
SIGI 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. SIGI positions also carry Financial Services sector concentration risk; news flow inside the sector (peer earnings, regulatory shifts, supply-chain headlines) can move SIGI alongside the broader basket even when SIGI-specific fundamentals are unchanged. Always rebuild the position from current SIGI chain quotes before placing a trade.
Frequently asked questions
- What is a butterfly on SIGI?
- A butterfly on SIGI is the butterfly strategy applied to SIGI (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 SIGI stock trading near $97.27, the strikes shown on this page are snapped to the nearest listed SIGI chain strike and the premiums come straight from the end-of-day bid/ask midpoint.
- How are SIGI 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 SIGI butterfly priced from the end-of-day chain at a 30-day expiry (ATM IV 103.20%), 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 SIGI butterfly?
- The breakeven for the SIGI 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 SIGI market-implied 1-standard-deviation expected move is approximately 29.59%; if the move sits well outside the breakeven distance, the structure's risk-reward becomes correspondingly tighter.
- When should you consider a butterfly on SIGI?
- Butterflies on SIGI are pinning bets - traders use them when they expect SIGI 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 SIGI implied volatility affect this butterfly?
- SIGI ATM IV is at 103.20% with IV rank near 19.86%, 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.