Calculate maximum profit, upper and lower breakevens and scenario losses for a short straddle at expiration.
Maximum profit
Maximum profit equals the call premium plus put premium and occurs only when the underlying finishes at the shared strike. Commissions reduce the retained amount.
Lower breakeven
Subtract total credit from the strike. Below that price, put intrinsic value exceeds the premium received and loss grows as the underlying continues to fall.
Upper breakeven
Add total credit to the strike. Above that price, call intrinsic value exceeds the premium received and loss grows without a theoretical ceiling.
Before expiration
A payoff diagram is not a forecast of interim P&L. Remaining time value, implied volatility, skew, dividends and liquidity can keep the trade profitable or unprofitable at prices inside the expiration range.
A practical example
A 100 short straddle collects $9. Maximum profit is $900, breakevens are $91 and $109, and expiration at $115 produces a $600 loss before costs.
This simplified scenario focuses on expiration outcomes; live prices and risks will differ. Live option prices also reflect the underlying price, time decay, rates, dividends, liquidity and transaction costs. Greeks are theoretical estimates, not guarantees.
Build a risk-first trading plan
Before using short straddle profit, loss and breakevens, record the underlying price, strike, expiration, total credit and contract multiplier. Calculate both expiration breakevens, then model losses beyond them rather than stopping at the profitable range. The maximum credit is visible at entry, but the largest future loss is not.
Stress at least five underlying prices, a volatility increase and decrease, and several dates. Include a gap that cannot be adjusted intraday. Review delta, gamma, theta and vega at the position and portfolio level because several neutral premium trades can become directional together.
Define a profit target, maximum tolerated loss, margin reserve, event rule and latest exit date. Use a single multi-leg order where possible and verify both legs after every fill or adjustment. This process does not eliminate risk, but it makes the decision measurable and repeatable.
After the trade, record actual movement, volatility change, slippage and the largest directional exposure. Comparing those results with the original forecast helps separate sound execution from a lucky outcome and improves future duration, strike and position-size decisions.
Frequently asked questions
How many breakevens are there?
Two at expiration.
Where is maximum profit?
At the common strike.
Can loss exceed the credit?
Yes, by a large amount.
Continue the Short Straddle cluster
Explore related guides: Short Straddle Example With Payoff Scenarios · Best Market Conditions for a Short Straddle · Short Straddle Margin and Buying Power. For a structured sequence, use the free Level 15 – Short Straddle course.
Options involve risk and are not suitable for every investor. This material is educational and is not investment, tax or legal advice. Greeks are theoretical estimates, and contract terms and broker requirements can vary.