Your First Vertical Spread
The vertical spread is the workhorse of retail options trading: defined risk, cheaper than a long option, and flexible enough to express almost any directional view. Learn it properly and most other structures become combinations of it.
Debit spreads: paying for direction
Buy one option, sell a further out-of-the-money one of the same type and expiration. You cap your upside in exchange for a materially lower cost and reduced theta bleed. Max loss is the debit paid; max profit is the strike width minus the debit.
Credit spreads: selling probability
Sell the closer strike, buy the further one for protection. You collect a credit up front and win if price stays away from your short strike. Max profit is the credit; max loss is width minus credit. The trap is the risk/reward: collecting $0.30 to risk $4.70 needs an extremely high win rate to survive.
Choosing strikes with gamma
Anchor short strikes beyond the relevant wall, not at an arbitrary delta. A put credit spread with its short strike below the Put Wall in a positive-gamma regime is structurally different from the same delta placed under the flip level in a negative-gamma regime.
- Target 0.30 delta shorts as a default, then adjust to the wall.
- Width should be small enough that one max loss stays inside your risk budget.
- Always check the breakeven against realistic daily range, not hope.
Management rules
Take credit spreads off at 50–65% of max profit rather than holding to expiration for the last few cents of gamma risk. Debit spreads: scale out at your first target and let a runner work toward the short strike.
Key takeaways
- Debit = pay for direction, credit = get paid for time and distance.
- Strike selection driven by gamma walls beats strike selection driven by delta alone.
- Close credit spreads early; the last 35% of profit carries most of the risk.
Practice this in the terminal
Test your knowledge
2 questions. Score 80% or higher to count this guide as mastered.
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Educational content only. Options involve substantial risk and are not suitable for every investor. Nothing here is financial advice.