Option Strategy Payoff Calculator
Build a multi leg option position and see the payoff at expiry: break-even points, maximum profit and loss, net debit or credit, and the profit or loss at any underlying price.
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The payoff diagram is the position
An option strategy is a set of legs whose values combine into one payoff at expiry. A vertical spread caps both the gain and the loss. An iron condor profits when the underlying stays inside a range and loses outside it. A covered call trades upside above the strike for premium today. Each of these is obvious from the payoff shape and considerably less obvious from a description, which is why every options desk draws the diagram before taking the trade.
Break-even is where the premium is recovered
A long call does not profit above the strike, it profits above the strike plus the premium paid. That difference is the whole reason most first option trades lose money despite the direction being right: the underlying moved, but not far enough or not fast enough. A multi leg position can have several break-even points, and knowing where they sit tells you exactly how much movement the trade requires to be worth having.
What a payoff diagram cannot show
This is the value at expiry only. Before expiry an option has time value that responds to volatility, interest rates and the passage of time, so a position can be deeply unprofitable on paper while its expiry payoff looks fine, or vice versa. Assignment risk on short American options, dividends on the underlying, and the margin required to hold short legs are all real and none appear on the diagram. Treat it as the shape of the bet, not as a complete risk picture.
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Frequently Asked Questions
What is the difference between a debit and a credit strategy?
A debit strategy costs money to open, so the maximum loss is what you paid. A credit strategy pays you to open, so you keep the premium if it expires worthless but the maximum loss can be much larger than the credit received.
How is maximum loss calculated for a naked short call?
It is unbounded, because the underlying can in principle rise without limit. The calculator reports it as unlimited rather than picking an arbitrary large number, because the distinction matters enormously for position sizing.
Does this include commissions and assignment risk?
No. Commissions reduce every result slightly, and early assignment on short American options can change the position before expiry, particularly around dividends. Both are real costs the payoff diagram does not show.
Why does my position lose money even though the underlying moved my way?
Usually because it did not move far enough to clear the premium, or because time decay and falling implied volatility took more value than the move added. The payoff shown here is at expiry; before expiry the Greeks govern.
What is the profit probability shown?
A rough estimate from the break-even points and the volatility you supply, assuming a lognormal distribution. It is a sanity check rather than a forecast, and real distributions have fatter tails than the model assumes.
Privacy & Security
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How to Use
Add each leg with its type, strike, premium and quantity to see the combined payoff at expiry.
Disclaimer: This tool is provided "as is" without warranty of any kind. Results are for educational and utility purposes.
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