Iron Butterfly Calculator

Your iron butterfly

Results

Net credit (max profit)
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Max loss
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Lower breakeven
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Upper breakeven
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Return on risk
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Annualized return
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Profit zone
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Profit zone width
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Probability of profit

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A model estimate from the implied volatility above (a lognormal price model, the same one behind Black-Scholes and the expected move) — not a prediction. It assumes you hold to expiration and ignores volatility skew, early assignment and dividends. Real outcomes will differ.

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