Skip Strike Butterfly

Skip strike butterflies are cheaper (lower debit), have a wider profit zone, and allow you to express a directional bias. The trade-off is a larger max loss on the skipped (wide) side. Use when you have a price target AND a directional lean.

Max loss is asymmetric. On the narrow side, you can only lose the debit paid. On the wide side, max loss = debit + (wide width - narrow width). Always size your position based on the wide side max loss.

Put the skip (wide side) on the direction you think price is UNLIKELY to go. If you're bullish and expect price to rise to your target, skip above it. If bearish, skip below. The larger loss is acceptable because that scenario is unlikely.

Close at 50-75% of max profit, or by 7-10 DTE (before gamma gets too high), or if you've lost 50-75% of your debit. Don't wait for perfect max profit - the gamma risk near expiration makes it dangerous.

Use calls if your target is at or above current price. Use puts if your target is below current price. The type should make your short strike at-the-money or in-the-money at your target. Check both to see which is cheaper.

Higher skip ratios (1:2, 1:2.5) reduce cost more but increase max loss on the wide side proportionally. A 1:1.5 ratio offers good cost reduction with moderate risk increase. Beyond 1:2, the risk increase often outweighs the cost savings.

This is the danger zone with larger max loss. Consider closing earlier than on the narrow side. You might close at 40-50% debit loss vs 60-70% for the narrow side. The asymmetric risk requires asymmetric management.

Skip strike butterflies have slight net short vega at the short strike, long vega at wings. Moderate IV (rank 30-60%) is best. High IV makes the butterfly expensive; low IV limits profit potential. IV crush after entry can help if positioned well.

Yes, but it's complex. You'd close the current position and open a new one centered on the new expected target. This costs additional debit. Often it's better to close and open a fresh position rather than 'roll.' Butterflies generally don't adjust as well as spreads.

Track aggregate directional exposure (skip directions). Don't concentrate all skips in same direction. Size each position based on wide-side max loss. Limit total butterfly exposure to 10-15% of portfolio to avoid concentration risk.

EV = P(target)×MaxProfit + P(narrow)×NarrowLoss + P(wide)×WideLoss. Calculate for various ratios (1:1.25 to 1:2.5). Find ratio maximizing EV or EV/MaxLoss. Use delta-implied probabilities or historical distributions. Test sensitivity to probability estimates.

Skew affects wing pricing. Typically puts have higher IV (equity skew), making put butterflies slightly more expensive. Analyze IV at each strike. Skip toward strikes with lower relative IV. The wide wing should be at a strike where the smile provides relatively good pricing.

Entry: IV rank 30-60%, ADX 15-30, target at nearest round number. Structure: 1:1.5 ratio, 30-45 DTE. Exit: 65% max profit, 60% debit loss, 7 DTE time stop. Backtest with grid search on parameters. Validate out-of-sample. Accept 'good' over 'perfect' parameters.

Model scenarios: ±10% market moves, ±50% IV changes. Calculate each position's P&L under each scenario (watch asymmetric losses). Sum for portfolio impact. Pay special attention to correlated wide-side losses. Ensure aggregate stress loss is within risk tolerance.

Double skip (wider wings on both sides) for maximum cost reduction when you strongly believe price will be near target but accept risk either direction. Use when probability at target is high and you want cheapest entry. Recognize significantly higher max loss on both sides.