Butterfly Spread
A three-strike options strategy that profits when price settles near a target price — precision tool for the Close Zone phase.
A butterfly spread uses three strikes at equal intervals: buy 1 at the lower, sell 2 at the middle, buy 1 at the upper. It profits most when the underlying closes exactly at the middle ("body") strike.
For 0DTE SPX trading:
- ●Butterflies are precision instruments — low cost, high reward at the target
- ●Most effective in the final 60-90 minutes when theta acceleration pins the range
- ●Can be centered on the Close Zone projection for high-probability placement
- ●Cost $50-200, can profit $500-1000 if price lands at the body
SPXXL's Close Zone projection is the natural targeting system for butterfly placement. As the session enters the 3:30-4:00 PM Close Zone phase, the projected range narrows and the ideal butterfly body strike becomes clearer.
Risk profile:
- ●Max loss: debit paid (the cost of the butterfly)
- ●Max profit: strike width - debit (if price is exactly at the middle strike at expiry)
- ●Breakeven: middle strike ± debit paid
Butterflies are the precision-strike structure in the SPXXL arsenal. They're recommended when the Close Zone confidence is high and the projected range is narrow — typically late in a Balanced Day or Volatility Compression session.
Related Terms
SPXXL's proprietary projected closing price range for SPX, computed using session classification, gamma exposure, and intraday momentum.
A four-leg credit spread that profits when price stays within a defined range — ideal for Balanced Day and Volatility Compression sessions.
A defined-risk options strategy that profits from directional movement — SPXXL's primary recommended structure for most session types.
The rate at which an option loses value as time passes — accelerates dramatically for 0DTE options as expiration approaches.