Options Profit Calculator

Per share — the number your broker quotes. A premium shown as 3.20 means $3.20 a share, which is $320 for one contract. Entering 320 here would overstate the trade a hundredfold, so the field is labelled per share and the results panel always shows the total separately.

On your broker's option chain for the ticker and expiry you are looking at. The strike is the row; the premium is the bid, the ask, or the mid depending on which side of the trade you expect to get filled. Buyers are usually closer to the ask, sellers closer to the bid.

Use the price you realistically expect to trade at. The mid is a fair planning assumption on a liquid contract with a tight spread. On a wide spread the mid can be optimistic by more than the edge you are hoping for, so run the calculation twice — once at the mid, once at the worse side — and see whether the trade still makes sense.

It does not change the payoff at expiration — that depends only on where the stock finishes. It is used for the percentage move required to reach breakeven, and for the leverage comparison. Both are context for deciding whether the trade is plausible, not part of the P/L arithmetic.

Enter the total contracts and the weighted average premium you actually paid or received. If the fills were far apart, running each block separately and adding the results is more honest, because a single average hides how different the two breakevens are.

Yes. Copy link puts every input into the URL, so the link you paste opens with the answer already on screen — useful for a second opinion or for your own notes. Download CSV gives you the summary plus the whole payoff curve, which opens straight into a spreadsheet.

Because you are already looking at the numbers. Every calculator that asks for a symbol then makes you wait for an option chain to load, pick an expiry and pick a strike — four steps to reach a screen where you type the same premium you had in front of you at the start. Skipping the lookup is the single biggest thing that makes this page faster than the alternatives.

Not yet on the page. The engine underneath already handles multi-leg positions correctly — it finds two breakevens on a straddle and the right capped profit on a vertical spread — so these are a matter of building the pages rather than rewriting the maths. They are next on the list.

Yes. The inputs and the headline result are laid out to fit the first screen on a phone, with the payoff chart directly beneath them. Nothing is hidden behind a menu and there is no horizontal scrolling.

Pick the one describing the trade you are looking at, not the one with the best number. Long call and long put are directional bets where you pay a premium for leverage. Covered call and cash-secured put are income trades where you collect a premium in exchange for capping your upside or committing to buy.

Because the premium moves in different directions. When you buy, the premium is a cost, so the stock has to travel further — the breakeven moves away from the strike. When you sell, the premium is income, so it cushions you — the breakeven moves in your favour. The calculator solves it from the payoff each time rather than applying a remembered rule.

Because a share price has no ceiling and does have a floor. A call's value rises without limit; a put's value maxes out when the stock hits zero, at the strike less what you paid. Reporting a put as unlimited is a common error and this calculator solves for the real ceiling instead.

The formula for that one strategy written out and explained, four worked examples using its own numbers, and the questions that only make sense there — early assignment before an ex-dividend date on the covered call page, the wheel hand-off on the cash-secured put page, the leverage comparison on the two directional pages. Same engine, more context.

Not here, and deliberately so. P/L before expiry depends on implied volatility, interest rates and the time remaining, and any tool that shows it is running a model whose inputs you would have to supply and trust. This page answers the narrower question exactly rather than the broader one approximately.

Because at expiration there is no time value left — an option is worth exactly its intrinsic value, and intrinsic value needs only the strike and the finishing stock price. Volatility matters for what an option is worth before expiry, which is a pricing question rather than a profit question.

Only if you enter them. Put the total for the round trip in the commissions field and they come off the profit and move the breakeven — a $13 commission on one contract shifts the breakeven by 13 cents, which is small but not nothing on a tight trade.

No. Options tax treatment depends on your country, your holding period, whether the position was assigned or closed, and in some cases whether it was part of a straddle. Treat every figure here as pre-tax and check your own situation.

Ignored. A dividend reduces the stock price on the ex-date, which affects where the stock finishes, and for anyone short a call it raises the chance of early assignment the day before the ex-date. Neither effect is modelled.

The calculator assumes the standard US equity multiplier of 100 shares per contract. After a split, a spin-off or a merger a contract can be adjusted to a non-standard deliverable, and index options use other multipliers. In those cases the per-contract figures here will be wrong.

No. The whole calculation runs in your browser; nothing is sent to a server, there is no account, and the page works the same with the network switched off after it loads.

Not here. Delta, theta and probability of profit all need an implied volatility input and a pricing model, which makes them a different tool answering a different question. Adding a volatility field to this page would put an obstacle most visitors cannot clear in front of the answer they came for. A separate Black-Scholes page is the right home for them.

Two ways. The formula for each strategy is written out above, so you can check any figure by hand in about thirty seconds. And the engine is covered by a test suite that derives every expected value from the algebra independently — including the awkward cases like a zero-premium option and a position that sits exactly on its breakeven.

No, and that is deliberate. A live chain means an API, a cost, a dependency and a new way for the page to be broken or slow when you need it. You supply the premium from your own broker, which is the price you would actually trade at anyway rather than a delayed feed.