Free CSP planning tool

Cash-secured put calculator

Estimate the capital, breakeven, cushion, and return profile of a put contract before checking the live order with your broker.

Contract assumptions

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Your estimates will appear here

Enter a contract’s values to compare its capital requirement and simplified return profile.

How these estimates work

Gross cash collateral is strike × 100 shares × contracts. Your broker’s requirement may differ.

Breakeven at expiration is strike minus net premium per share. It does not limit loss if the stock falls further.

Annualized return scales the estimated return on gross collateral by days to expiration. It is a comparison tool, not a forecast.

For informational and educational purposes only—not financial or investment advice. Quotes may be delayed. Always confirm the live contract, collateral requirement, fees, and risks with your broker before trading.

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