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Cash-secured put — get paid to buy lower

Sell a put to take on the obligation to buy at a chosen price, collecting premium. If assigned, you buy the stock there, but the premium lowers your real cost basis.

4 min read

A cash-secured put is a strategy where you promise to buy a stock you want at a price you like — and get paid for the promise. By selling a put you collect a premium up front, but you take on the obligation to buy at the strike if the stock falls below it.

Walk through what happens when you sell a put below.

Why "cash-secured"

If you’re assigned, you must buy 100 shares at the agreed strike. A cash-secured put means you set the cash aside in advance to actually buy them. For one $95 put, you hold $9,500 ready.

Two outcomes

  • ·Stock stays above the strike → the put expires worthless. You keep the full premium — your max profit.
  • ·Stock falls below the strike → you’re assigned. You buy 100 shares at the strike, but the premium lowers your real cost basis (e.g. $95 − $3 = $92).

The key: if it’s a stock you wanted to own at that price anyway, you get paid to wait. The risk is a large drop, which can leave you holding shares above the market price.

In NOSKA

NOSKA backtests how put-selling at different strikes (deltas), expiries, and entry conditions performed historically — win rate and expectancy — so you can validate your cash-secured put strategy.

Try a backtest yourself

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