Options profit calculator.
Enter a call or put, the strike, the premium and where the stock ends up. See your profit or loss at expiration, the break-even, max profit and max loss, and the payoff chart.
At expiration only. No sign-up, nothing sent anywhere: the math runs in your browser.
Result
- Net premium
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- Break-even
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- Max profit
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- Max loss
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Payoff at expiration across stock prices. The line is your profit or loss, the filled dot is your price above, hollow dots mark break-even.
Values at expiration only. Before expiration an option also has time value, so its price and your P&L will differ. Ignores commissions, fees, early assignment and dividends. Not financial advice; options carry risk, and selling options can lose more than the premium received.
The math at expiration.
On expiration day an option is worth only its intrinsic value. Everything here follows from that, times 100 shares per contract.
These are textbook payoffs for learning and planning. They do not predict where a stock will go.
Options profit, explained.
How do you calculate options profit at expiration?
Work out the option's value on expiration day: for a call, the stock price minus the strike; for a put, the strike minus the stock price; never below zero. If you bought, subtract the premium you paid. If you sold, subtract that value from the premium you received. Multiply by 100 shares per contract and by the number of contracts.
What is the break-even price of an option?
For a bought call it is the strike plus the premium per share. For a bought put it is the strike minus the premium. At that stock price on expiration day the trade neither makes nor loses money, before fees.
What is the most I can lose on an option?
If you buy a call or a put, the most you can lose is the premium you paid. If you sell a call without owning the shares, the loss has no limit, because the stock can keep rising. If you sell a put, the most you can lose is the strike minus the premium, times 100, if the stock goes to zero.
Why is my P&L different before expiration?
Before expiration an option also carries time value, which depends on time left and implied volatility. This calculator shows the value on expiration day only, so it will not match the price of an option that still has time left.
Can I calculate a spread?
Yes. Add a second leg to model a two-leg position such as a call or put vertical spread. The calculator adds both legs together and finds the combined break-even, max profit and max loss at expiration.
Is this calculator financial advice?
No. It is an educational tool that shows the math of an option at expiration. Options carry risk, and you can lose the full premium or more when selling. Decide your own trades.
Plan it here. Chart it free.
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This calculator is an educational tool, not advice or a prediction. Results are at expiration only and ignore fees. Alertsify is a self-directed software tool and is not a registered investment adviser or broker-dealer. All trading involves risk.