Are results per contract?
No. They are per share or per option unit. Apply the actual contract multiplier, often 100 for U.S. equity options, separately.
Options Spread Calculator for Risk and Reward
Estimate debit, maximum profit, maximum loss, and break-even levels for common spreads.
Model a simple two-leg options spread before considering contract multipliers and trading costs.
Options Spread Calculator for Risk and Reward
Estimate debit, maximum profit, maximum loss, and break-even levels for common spreads.
Net debit = long premium − short premium. Debit vertical: max profit = strike width − net debit, max loss = net debit. Credit vertical: max profit = net credit, max loss = strike width − net credit.
About the Options Spread Calculator
An options spread combines more than one option position to shape risk, potential reward, and the range of prices that may be favorable at expiration. A vertical bull call spread normally buys a lower-strike call and sells a higher-strike call. A bear put spread normally buys a higher-strike put and sells a lower-strike put. Compared with buying a single option, selling the second leg can reduce upfront cost, but it also caps potential profit.
The options spread calculator summarizes the core expiry arithmetic for the selected two-leg spread. It subtracts the short-option premium from the long-option premium to calculate a net debit or credit. For a debit vertical, the difference between strikes sets the maximum payoff width. Maximum profit is the width minus the debit, maximum loss is the debit, and the break-even is adjusted from the long strike in the appropriate bullish or bearish direction. Butterfly and iron-condor names are available for planning context, but their full multi-leg construction requires additional strikes and premiums; do not rely on this simplified two-leg output to price a complete multi-leg position.
Enter premiums per share or per unit consistently. Results are shown before the contract multiplier, commissions, exchange fees, bid-ask slippage, assignment, exercise, interest, and tax. If an equity option represents 100 shares, multiply per-share figures by 100 only after checking the contract specification. Days to expiration and implied volatility are important context but do not change the simple at-expiration arithmetic displayed here.
Options can lose all value and short options can create assignment or margin obligations. A maximum-loss number is not a guarantee if a position is modified, early assignment occurs, or execution differs from the assumed legs. Review the expiration date, option style, liquidity, corporate actions, and broker requirements. Use payoff diagrams and scenario analysis for complete strategies. The options spread calculator is educational only and is not an offer, investment recommendation, or substitute for options-risk disclosures and advice from a licensed professional.
Options Spread Examples
Figures are per share and exclude contract multipliers and fees.
| Spread inputs | Expiry result | Reason |
|---|---|---|
| Bull call: long 95 call $3.50, short 105 call $1.50 | Debit $2.00; max profit $8.00; break-even $97.00 | A $10 strike width leaves $8 after the $2 debit. |
| Bear put: long 105 put $3.00, short 95 put $1.00 | Debit $2.00; max profit $8.00; break-even $103.00 | The break-even lies below the long put strike. |
| Bull call: long 50 call $6.00, short 60 call $2.00 | Debit $4.00; max profit $6.00; break-even $54.00 | A $10 strike width leaves $6 of potential profit after the $4 debit. |
How to Use the Options Spread Calculator
- Select the spread direction or strategy context.
- Enter the underlying price, strikes, and each option premium.
- Record days and implied volatility as position context.
- Select Calculate to review the simplified expiry metrics.
- Apply the contract multiplier, fees, and your broker’s rules before trading.
Options Spread FAQ
Why are butterfly results simplified?
A true butterfly or iron condor needs extra strikes and premiums. This two-leg calculator cannot price those complete structures.
Does implied volatility change maximum profit?
Not the basic expiration payoff of a fixed vertical spread. Volatility still changes option prices, early-exit values, and the chance of reaching expiry profit.
Can I lose more than the displayed amount?
A defined debit spread has a defined expiry loss under its assumed legs. Execution, assignment, early exercise, and strategy changes can create other risks.