OpenPositions education editorial · Reviewed: 2026-10-30
Is a cash-secured put protected against a stock-price fall?
Reserved cash funds a purchase. It does not put a floor under the stock.
Know the obligation
Selling a put can create an obligation to buy shares at the strike if assigned. Cash-secured means sufficient cash is reserved for that purchase. It describes funding, not protection against a lower market value.
A hypothetical expiry example
Sell one standard 100-share put with a $50 strike for $1 per share. At expiry, if the shares are worth $35 and assignment occurs, the $5,000 purchase is worth $3,500. The $100 premium reduces the loss to $1,400 before fees. It does not erase the decline.
Read both sides
The put's maximum profit is its premium, before fees; the loss can be substantial if the stock collapses. American-style equity options can be assigned before expiry. After assignment, share-price exposure continues. A willingness to own a business does not guarantee an acceptable outcome at every purchase price.
Check your understanding
In this hypothetical example, is the $100 premium the whole position's profit?
Show the explanation
No. Compare it with the $1,500 difference between the purchase obligation and the shares' expiry value. Net loss is $1,400 before fees. Cash is available to settle the purchase, but market risk remains.
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This is a public introductory sample. Structured lessons and further practice require a separate course purchase. Completing this page does not unlock paid material or guarantee trading income. Review the curriculum and access terms before deciding.
Education only, not trade recommendations. Examples are hypothetical, not account records or market quotes. Expiry payoff is not pre-expiry market value.
Mechanics reference: OIC: Cash-secured put. The source supports contract mechanics; it does not endorse this course or example.