Broken Wing Butterfly Options Strategy Explained

Standard Butterfly vs Broken Wing: What Changes

A standard butterfly spread on calls uses three equidistant strikes:

• Buy 1 call at lower strike (e.g., $480)
• Sell 2 calls at middle strike (e.g., $500)
• Buy 1 call at upper strike (e.g., $520)

The wings ($480 to $500, and $500 to $520) are equal at $20 wide. This butterfly typically costs a debit to enter. Maximum profit = wing width minus debit paid, achieved if the underlying closes exactly at $500 at expiration. Maximum loss = debit paid, on either side.

A broken wing butterfly skips a strike on one side:

• Buy 1 call at $480
• Sell 2 calls at $500
• Buy 1 call at $530 (skipped $520, so upper wing is now $30 wide)

The lower wing is $20 wide ($480 to $500). The upper wing is $30 wide ($500 to $530). This asymmetry means the upper long call ($530) costs less than a standard $520 call — so the total premium collected from the 2 short $500 calls exceeds the total premium paid for the $480 and $530 calls, resulting in a net credit.

P&L Profile: Asymmetric Risk

The BWB call spread in the example above has three key outcomes:

1. Underlying below $480 at expiration: All calls expire worthless. You keep the net credit collected. This is profit.
2. Underlying at $500 at expiration (body strike): The short $500 calls expire worthless; the long $480 call has $20 of intrinsic value; the long $530 call expires worthless. Profit = $20 intrinsic on long $480 call + net credit collected. This is the maximum profit zone.
3. Underlying above $530 at expiration: All three positions have intrinsic value. The spread is worth: long $480 call gain − 2× short $500 call loss + long $530 call gain. At $540 for example: ($60) − 2×($40) + ($10) = $60 − $80 + $10 = −$10 per share loss. The maximum loss is the difference between the wider wing width ($30) and the net credit collected. If the credit was $0.50, maximum loss = $30 − $0.50 = $29.50 per share (×100 = $2,950 per contract).

Summary: the wider wing is the "risky side." The narrow wing is the "safe side" — if the underlying goes to the narrow-wing side, you keep the credit. The tradeoff: you accept a larger defined loss on the wide-wing side in exchange for the credit that makes entry free (or even profitable) if the market moves away from the wide side.

Put-Side BWB: The More Common Version

The most frequently traded BWB uses puts rather than calls, and skips the lower strike (widening the put wing downward). The setup:

• Buy 1 put at $490
• Sell 2 puts at $475
• Buy 1 put at $455 (skipped $460, so lower wing is $20 wide, upper wing is $15 wide)

Wait — the standard convention for a put BWB is widening the lower wing: the body is the two short puts, the upper wing (closer to ATM) is the narrow side, and the lower wing (further OTM) is the wider side. Skipping downward means the far OTM long put is at a much lower strike, making it very cheap, and turning the spread into a net credit.

Why the put side? Puts carry a volatility skew premium — OTM puts are more expensive relative to their probability of expiring ITM than calls. This means the two short puts in the body generate more premium relative to the long legs, making the credit entry more favorable. Put BWBs on indices and ETFs (SPX, SPY, QQQ) are common vehicles for this reason.

BWB vs Standard Iron Condor: Key Differences

Both BWBs and iron condors are neutral-to-directional strategies entered for credit. Their key differences:

• Profit zone: Iron condor profits across a wide range between two short strikes. BWB has one specific body strike where profit is maximized, and a directional lean depending on which side the wide wing is on.
• Loss profile: Iron condor has defined loss on either side (equal max loss potential both ways). BWB has asymmetric loss — one side has a larger maximum loss than the other.
• Capital efficiency: BWBs often require less buying power than iron condors for similar credit, because one wing is unhedged on the wide side (or more precisely, the hedge is farther out).
• Best use: Iron condors when you expect range-bound action symmetrically around current price. BWBs when you have a mild directional lean — the wide wing goes on the side you are less worried about, while the narrow wing covers your primary concern direction.

Entry Timing and GEX Regime

BWBs, like all defined-risk neutral strategies, perform best in positive GEX environments where dealer hedging suppresses moves and creates pinning dynamics near high-OI strikes. In negative GEX environments, the amplification of moves increases the probability of breaching the wide wing — the scenario that creates the maximum loss. Before entering a BWB:

• Confirm the GEX reading is positive (suppressive dealer mechanics).
• Identify whether the current price is between the body and the narrow wing (good entry) or approaching the wide wing (avoid).
• Check that the body strike aligns with a Call Wall or Put Wall — high OI strikes that attract price near expiration.