The Iron Butterfly Variant

What happens when the shorts collide

Take an iron condor and slide the short call and the short put toward each other until they are sitting on the same strike, right at the money. You have just built an iron butterfly. The two long wings stay where they were, out of the money on both sides. The structure is still four legs, still defined-risk, still a net credit. But the shape on a payoff diagram is no longer a trapezoid — it is a tent, with one sharp peak at the body strike.

Because the shorts are at the money, they collect way more premium than the out-of-the-money shorts in a condor. The credit is roughly double. But the trade-off is brutal. Max profit only occurs if the underlying pins exactly at the body strike at expiry. Any other price means you keep less than the full credit, and outside the break-evens you start losing. The profit window is narrow.

When do traders pick a butterfly over a condor? Usually when implied volatility is elevated and they have a strong opinion that the underlying will mean-revert to a specific level. The butterfly is a sniper rifle for a thesis like, 'this stock will close near 100 in 30 days because that is its anchor.' If the thesis is just 'price will not move much,' a condor is a better fit because it does not demand a pin.

One practical risk to flag — pin risk near expiry. With both shorts sitting at the money, a tiny move in the final hour can flip one of them in or out of the money repeatedly. Most retail traders close iron butterflies a few days before expiration to avoid that mess. The same rule applies to condors but it is more urgent on a butterfly because both shorts can be live at once.

Recap: iron butterfly = iron condor with shorts collapsed to one ATM strike. Bigger credit, narrower window. Use when you have a precise mean-reversion target. Close early to dodge pin risk.