How to use the options profit calculator

Each field matches a number you can read off an options chain or your trade plan:

  1. Option type: a call if you expect the stock to rise, a put if you expect it to fall. Our call vs put guide explains both.
  2. Strike price: the price at which the contract lets you buy (call) or sell (put) the stock.
  3. Premium per share: the price quoted on the chain. A quote of 4.50 means $4.50 per share, or $450 for one contract.
  4. Contracts: whole contracts only. One standard US stock or ETF option covers 100 shares.
  5. Stock price at expiration: try your target, your stop and a price in between to see the whole picture.

How to calculate options profit and loss at expiration

At expiration an option has no time left, so it is worth only its intrinsic value. The calculator applies these formulas:

  • Call value at expiration = max(stock price − strike, 0).
  • Put value at expiration = max(strike − stock price, 0).
  • Profit or loss = (value at expiration − premium) × 100 × contracts.
  • Total cost = premium × 100 × contracts. For a buyer this is the maximum loss.
  • Breakeven for a call = strike + premium. Breakeven for a put = strike − premium.

Worked example: buying a call (hypothetical)

Say a stock trades at $497 and you buy one call with a $500 strike for a $4.50 premium. The cost is $450, and that is the most you can lose. Breakeven at expiration is $504.50: the stock has to rise past the strike by at least the premium you paid.

If the stock closes at $510 on expiration day, the call is worth $10 per share, or $1,000. Minus the $450 you paid, the result is a $550 profit. If it closes at $503, the call is worth $3, and you lose $150 even though the stock went up. If it closes at $500 or lower, the call expires worthless and you lose the full $450.

Turn your phone sideways to read the drawing. Tap to close.

A hand-drawn calculator table for the $500 call bought for $4.50 ($450): at an expiration price of $510 the call is worth $10.00, minus the premium $5.50, times 100 shares +$550; at $503 it is worth $3.00, then −$1.50 and −$150; at $500 or lower it is worth $0, then −$4.50 and −$450. Below: break-even = $500 + $4.50 = $504.50.

Worked example: buying a put (hypothetical)

Now a stock trades at $102 and you buy one put with a $100 strike for $2.00. The cost is $200, and breakeven is $98, the strike minus the premium.

At $95 on expiration day the put is worth $5, or $500, so the result is a $300 profit. At $99 it is worth $1 and you lose $100. At $100 or higher it expires worthless and you lose the $200. A put pays off only if the stock falls far enough, fast enough.

Turn your phone sideways to read the drawing. Tap to close.

A hand-drawn bar chart of the $100 put bought for $2.00 ($200), with the stock now at $102, showing the profit or loss at expiration for each price from $95 to $103: +$300 at $95, break-even at $98, −$100 at $99 and −$200 at $100 or higher.

Why the option price before expiration is different

Before expiration an option also carries time value, so a calculator that works at expiration cannot give you its price on a Tuesday afternoon. Two forces move that time value. Time decay, called theta, shrinks it every day and speeds up as expiration gets close. Implied volatility, the market’s expected size of future moves, raises or lowers it as traders reprice risk.

That is why an option can lose money even when the stock moves your way: the move came too slowly, or volatility dropped after an event such as earnings. Our guides to the options Greeks and implied volatility explain both with examples.

What this calculator does not include

It is built for one decision: what happens to an option you buy if you hold it to expiration. Keep these limits in mind:

  • Buying only. Selling options can lose far more than the premium collected, so it is not modeled here.
  • No commissions, exchange fees or taxes.
  • No early exit. Most traders close an option before expiration, at a price that includes time value.
  • No early assignment or exercise effects, and no dividends.
  • Standard 100-share contracts only. Adjusted contracts after splits or mergers can differ.

How to use it with a chart plan

A clean way to plan an options trade is to start on the stock chart. Mark the entry, the stop and the target on the underlying first. Then put the target and the stop into the calculator as stock prices at expiration and see whether the contract you are looking at still makes sense at both.

If your target is below the breakeven of a call you are considering, the trade cannot pay even when your chart plan works. Pick a closer strike or a longer expiration, or skip it. Our guides on choosing a strike price and trading options with TradingView signals walk through that process. UpTickFlow draws the entry, stop and target on the chart of the underlying; it does not pick the contract for you, and the indicator itself is described on our home page.

How much should you risk on one options trade?

When you buy options, the premium is the money at risk. A simple rule many traders use is to size the trade so that losing the whole premium costs a small, fixed share of the account, the same way stock traders size from their stop. Our position size calculator explains that logic for shares.

Options can go to zero quickly, especially near expiration. Size so that a full loss is something you can take calmly, and decide your exit before you enter.