Seller toolkit · 01

Price the promise before selling the put.

Breakeven, reserved cash, and premium return in one frame.

Cash-secured put calculator

Check maximum premium, breakeven, reserved cash, and simple return before taking assignment risk.

Put inputs

Position math

Maximum premium
$620.00
Breakeven
$513.80
Cash required
$52,000
Period return
1.19%
Annualized simple return
14.51%No compounding

Returns use strike cash as the denominator and exclude fees, taxes, compounding, and changes before expiry.

Browser-local by design

No brokerage connection, account upload, or live option chain. The tool frames your inputs; it does not recommend a trade.