TheSkewLab

Inverse iron butterfly

Big moveLimited profitLimited loss

Buy the straddle, sell the wings: defined-cost bet on movement.

Payoff at expiry — live BTC example

spot 77,506
Net debit
$789.11
Max profit
$1,011
Max loss
$789.11
Breakevens
76,811 / 78,389
Example legs (0.6 DTE front)
  • Buy 77,600 call
  • Buy 77,600 put
  • Sell 79,200 call
  • Sell 75,800 put

Entry greeks (per 1 BTC notional): Δ -0.123 · Γ 0.3277 per 1% · vega $14.22/pt · theta $-334.06/day

How it works

Long ATM straddle financed by short wings: cheaper than a naked straddle, profit capped at the wings.

When to use it

You expect a move at least to the wings but want to cut the straddle cost.

Risks & management

The cap means a monster move pays no more than a good one; the debit still bleeds if nothing happens.

Open in payoff builder →

Related structures

Example built from live Delta Exchange BTC marks on the nearest constructible expiry; numbers refresh with the chain. Educational content, not investment advice.