Options Profit Calculator
An options profit calculator shows what a position makes or loses at every stock price. Pick a strategy or build your own legs, and see profit and loss at expiration plus today's value from Black-Scholes. The breakevens, maximum profit and maximum loss update as you change strikes, premiums, volatility or days left.
Legs
For education only, not financial advice. Read the disclaimer.
HOW IT WORKS
At expiration each option is worth its intrinsic value: a call pays max(0, S - K) and a put pays max(0, K - S). Position profit is the sum over legs of side x qty x 100 x (value - price paid), where long is +1 and short is -1. A stock leg is 100 shares per quantity.
Expiry profit is a straight line between strikes, so breakevens, maximum profit and maximum loss are solved exactly from the strikes and the slope above the highest strike. If that slope is positive, profit is unlimited; if negative, loss is unlimited.
The "today" curve prices every option with Black-Scholes at the implied volatility, days to expiry and rate you enter, so it shows the time value still left in the position. It assumes European exercise and no dividends.