Options Strategy Reference

Cash-Secured Put

Get paid to wait to buy shares — premium income, full cash collateral · payoff at expiration

Loading payoff diagram…

Worked example

Sell 1 × $100.00 put for $3.00 per share — you collect a $300.00 credit and set aside $10,000.00 as cash collateral (the most you can lose is -$9,700.00, if the stock falls to zero). The position breaks even at $97.00 (strike − premium); you keep the full credit as long as the stock stays at or above the strike.

At expiration: if the stock is at $110.00, the position shows a net P&L of $300.00; if the stock is at $90.00, the position shows a net P&L of -$700.00.

When to use

  • You would be happy to own 100 shares at the strike, and want to be paid the premium while you wait.
  • You expect the stock to stay flat-to-up; if it never dips to the strike you simply keep the credit.
  • You hold the full cash to buy the shares if assigned — this is a secured, defined-risk position, not naked.

Common pitfalls

  • If the stock falls well below the strike you are still obligated to buy at the strike — your loss mirrors owning the shares from the breakeven down.
  • Your maximum profit is just the premium collected, no matter how far the stock rises.
  • The full strike value is tied up as collateral, so the capital required is large relative to the premium earned.