Diagonal Spread
A Diagonal Spread combines vertical and calendar elements — different strikes AND different expiries. Often used for long-bias income strategies.
At a glance
Strategy Snapshot
Market View
Mild directional bias with time decay benefit.
Net Cost
Net debit (typically).
Legs
Sell Near-Expiry OTM + Buy Far-Expiry Different Strike
Max Profit
Path-dependent — depends on price and IV evolution.
Max Loss
Net debit paid.
Breakeven
Path-dependent — typically near short strike at near-expiry.
Build
Strategy Construction
Color-coded legs — emerald for long positions, rose for short positions. Strikes shown around reference spot 100.
- SELLLeg 1
1 × 105 CE
Premium 1.50
- BUYLeg 2
1 × 100 CE
Premium 4.00
Visualize
Payoff at Expiry
Conceptual payoff with reference spot = 100. Strikes and premiums shown are illustrative.
Sensitivity
Greeks Exposure
Net portfolio Greek exposure for a typical setup. Bars show directional sensitivity from −1 (short) to +1 (long).
Delta
Directional exposure to underlying price.
+0.30
Long
Gamma
Sensitivity of Delta to price changes.
0.00
Neutral
Theta
Time decay exposure (per day).
+0.15
Long
Vega
Sensitivity to implied volatility shifts.
+0.35
Long
Strengths
Advantages
Why traders use it
- Combines directional bias with theta benefit.
- Defined risk (debit paid).
- Flexible — can be rolled multiple times.
Trade-offs
Risks & Disadvantages
What can go wrong
- Complex P/L — needs active monitoring.
- Sharp adverse moves hurt the back leg.
- Higher commissions due to multi-expiry management.
Avoid
Common Mistakes
Watch out for
- Choosing strikes too far apart.
- Letting the short expire ITM.
- Ignoring liquidity in back-month.
AI Insight
LiveDiagonals combine vertical and calendar edges. Best deployed with a multi-month thesis, harvesting monthly theta on the short leg while the long leg captures the move.
Generated by NextQuantLabs AI — for educational guidance only.
Questions
Frequently Asked
Why use Diagonal over Calendar?+
When you want a directional bias in addition to time-decay benefits.
Is Diagonal good for income?+
Yes — rolling short legs monthly against a longer leg can generate consistent income.