Cash-Secured Put: get paid while waiting to buy stocks at a discount
A cash-secured put pays you a premium today for agreeing to buy a stock you already want — at a price below the current one. Here is how it works, how to size it, and where it goes wrong.
What is a Cash-Secured Put?
A cash-secured put means selling a put option while holding enough cash to buy 100 shares at the strike price. You collect a premium immediately. In exchange, you accept the obligation to buy the shares at the strike if the option finishes in the money.
The key mental shift: you only sell puts on stocks you genuinely want to own at the strike price. The premium is your payment for waiting.
Strategy mechanics
Concrete example:
Scenario 1: MSFT stays above $390 at expiration
The put expires worthless. You keep the $650 — a 1.67% return on the secured cash in 35 days — and you can sell another put for the next cycle.
Scenario 2: MSFT drops below $390
You are assigned: you buy 100 shares at $390. Your effective cost basis is $383.50 ($390 − $6.50 premium). You now own a stock you wanted, roughly 6.5% below where it traded when you started.
Scenario 3: MSFT collapses to $330
You still buy at $390. The premium softens the hit, but the position is down meaningfully. This is the real risk: a cash-secured put has the same downside as owning the stock from the strike, minus the premium.
When does it make sense?
1. You already planned to buy the stock — the put just improves your entry.
2. Elevated implied volatility — richer premiums for the same obligation. Check the IV rank before selling.
3. Sideways-to-slightly-bullish view — in a strong rally you only keep the premium; in a crash you own the dip earlier than you hoped.
Picking strike and expiration
The Wheel: what comes after assignment
If you are assigned, the natural continuation is selling a covered call against the new shares — the income cycle known as the wheel: sell puts until assigned, then sell calls until called away, then repeat. The two halves use the same logic in opposite directions.
Common mistakes
1. Selling puts on stocks you don't want — the premium looks free until you own a falling stock you never wanted.
2. Sizing by premium instead of obligation — your real exposure is the strike × 100, not the premium received.
3. Refusing assignment — rolling endlessly to avoid buying defeats the strategy's purpose.
4. Ignoring the cash drag — the secured cash earns nothing while reserved; factor that into the return.
Practice it before funding it
A cash-secured put is one of the most beginner-friendly short-premium strategies, but position sizing discipline is everything. Run the full cycle — sell, get assigned, wheel into a covered call — on paper first.
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