semkuOptions profit calculator
Compare option profit and loss at expiration.
| Stock price at expiration | Profit / loss |
|---|---|
| $70.00 | −$250.00 |
| $75.00 | −$250.00 |
| $80.00 | −$250.00 |
| $85.00 | −$250.00 |
| $90.00 | −$250.00 |
| $95.00 | −$250.00 |
| $100.00 | −$250.00 |
| $105.00Strike | −$250.00 |
| $107.50Breakeven | $0.00 |
| $110.00 | +$250.00 |
| $115.00 | +$750.00 |
| $120.00 | +$1,250.00 |
| $125.00 | +$1,750.00 |
| $130.00 | +$2,250.00 |
Calculation rules
Results show profit and loss at expiration for one or two option legs on the same underlying stock with the same expiration. Values before expiration are not calculated.
Each contract is assumed to cover 100 shares, and premiums are entered per share. Adjusted contracts can have different terms and are outside this calculation.
A call's intrinsic value is max(stock price − strike, 0); a put's is max(strike − stock price, 0). For each bought leg, profit or loss is (intrinsic value − premium) × 100 × contracts; for each sold leg, it is (premium − intrinsic value) × 100 × contracts. The result adds all legs.
Maximum profit and loss consider every nonnegative stock price at expiration, not just the graph's range. Unlimited loss means losses keep growing as the stock price rises, when sold call contracts outnumber bought call contracts. A short put's maximum loss is finite and occurs at a stock price of zero.
Breakeven means total profit or loss is zero. It can be a price, a range, every price or no price. Offsetting intrinsic values do not remove the net premium from the result. Prices that do not fall on a whole cent are rounded once to the nearest cent, with halfway values rounded up, and marked ≈; profit or loss at a rounded breakeven price may not be zero.
The table starts from 30% below to 30% above Stock price now, in 5% steps, and includes strikes, breakeven points or range boundaries, and your optional price. Table prices are rounded to cents before profit or loss is calculated, so each row uses the price shown. Duplicate prices share one row.
Fees, early assignment, dividends, taxes and margin requirements are excluded. Stock positions and legs with different expirations are not included. The prefilled values are examples, not market quotes; all prices and premiums come from your inputs.
Frequently asked questions
- Does this calculate the value before expiration?
- No. It calculates profit and loss at expiration from your entered strikes, premiums and contract counts.
- Why does breakeven sometimes show a range?
- Total profit or loss can be zero across a range of stock prices, rather than at just one price; the result shows that whole range.
- Why do offsetting legs still show a loss?
- Their intrinsic values can offset while their premiums differ; the net premium remains as profit or loss at every stock price.
- What does Unlimited mean?
- Profit or loss has no finite bound as the stock price rises under the stated assumptions; the visible graph is only part of that price range.
- Why is profit or loss not zero at an approximate breakeven?
- The exact breakeven lies between whole cents; the table calculates profit or loss at the rounded price shown.
- Can Price at expiration be zero?
- Yes. Zero is valid for that optional field, although Stock price now and each strike must be above zero.
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