Options Education
Seagull Spread
A three-legged options strategy that finances directional speculation through volatility skew arbitrage. Combines buying a call spread with selling an OTM put to create near-zero-cost directional exposure. Popular among institutional traders and corporate treasurers for risk-defined hedging.
Risk / Reward
Substantial Risk, Capped Profit
Volatility View
Benefits from falling IV (Short Vega)
Time Decay View
Benefits from time decay (Long Theta)
A seagull spread (bullish variant) is a three-legged options structure that finances a directional bull call spread by simultaneously selling an out-of-the-money put option, typically resulting in a zero-cost or small net credit entry.
The strategy exploits volatility skew arbitrage. By selling the overpriced OTM put, you generate enough income to fully finance the long call spread, capturing upside participation without upfront cash outlay, in exchange for downside exposure below the short put strike.
Seagull Spread Payoff Architecture
SPX Zero-Cost Seagull Example
Max profit of $15,000 is achieved if SPX reaches $5,950. No cash is lost if SPX stays between $5,500 and $5,800. Downside risk begins below $5,500.
Seagull Spread vs. Bull Call Spread
Bullish Seagull Spread
- Cost: $0.00 zero-cost or net credit collected upfront.
- Financing: short OTM put pays for the call spread.
- Downside risk: substantial below the short put strike.
- Best for: bullish investors willing to buy the stock at a discount.
Standard Bull Call Spread
- Cost: requires paying full net debit upfront.
- Financing: self-funded.
- Downside risk: strictly defined to the initial debit paid.
- Best for: risk-averse directional traders avoiding any short put risk.
Greeks Profile
Delta
Positive delta — profits from underlying price appreciation above the long call strike.
Vega
Vega-skew sensitive — benefits when expensive OTM put volatility contracts relative to calls.
Theta
Balanced theta — short put and short call decay offset long call time decay.
Downside Risk
Substantial below short put — behaves like a short put position if the stock crashes below K1.
The Playbook
The risk profile, then how to trade and manage it.
Risk Profile (Payoff Diagram)
How to Read
Legs are pre-filled with a real long call spread (0.40/0.20 delta) financed by a short put (0.20 delta) from the current SPX chain — checked against real data to actually be close to zero-cost. Change the expiration or any strike to see the payoff update live. Profit is capped at the call spread's width; loss grows below the short put strike (naked, not protected by a long put).
How to Trade It
Strike Selection & Skew Calibration
- Short Put ($K_1$): sell a 15–20 delta put placed at key support where you would be happy to buy the stock.
- Long Call ($K_2$): buy a 40–50 delta ATM call for directional upside leverage.
- Short Call ($K_3$): sell a 15–25 delta OTM call to cap upside and reduce call spread cost.
- Zero-Cost Verification: verify that Put Credit + Short Call Credit $\ge$ Long Call Debit.
Duration & Expiration
- 60–120 DTE: longer timeframes allow volatility skew to work in your favor and give the directional move time to mature.
Step-by-Step Execution
- Screen for bullish setups in index products (SPX) or high-quality large caps with steep put skew.
- Select an expiration 60–120 days out.
- Enter all 3 legs simultaneously as a single 3-way order ticket.
- Verify net cost is $\le \$0.00$.
- Set a GTC profit target at 60–80% of the call spread width.
Manage the Position
Profit Targets
- 60–80% Call Width Target: exit when the call spread approaches full value as the stock reaches $K_3$.
Downside Management
- Short Put Defense: if the stock drops toward $K_1$, treat the short put identically to a cash-secured put: roll down and out for credit, or accept assignment at a steep discount.
Risks & Common Mistakes
Key Risks
- No Free Lunch Downside: while zero cash is paid upfront, capital loss below the short put $K_1$ can be substantial during market crashes.
- Capped Upside: gains stop accumulating above the short call strike $K_3$.
Risk Disclosure: Seagull spreads carry substantial downside risk below the short put strike. Losses can equal the strike price minus premium if the underlying stock collapses. Educational purposes only.