Both sell a put and both profit if the stock stays above the strike. A cash-secured put collects more premium and sets aside the cash to buy the shares, so its risk runs down to a stock price of zero. A put credit spread buys a lower put, which caps the loss at the width minus the credit and ties up far less capital, at the cost of a smaller credit and no path to owning the shares.
A stock trades at $100 with 30 days to expiration. The 95 put is $1.60 and the 90 put is $0.60.
| Cash-secured put | Put credit spread | |
|---|---|---|
| Position | Short 95 put | Short 95 put, long 90 put |
| Credit | $160 | $100 |
| Capital set aside | $9,500 (the cash to buy 100 shares) | $400 (the maximum loss) |
| Maximum loss | $9,340 if the stock goes to zero | $400 at or below $90 |
| Breakeven | $93.40 | $94.00 |
| Return on capital if the put expires worthless | 1.7% | 25% |
| If the stock finishes at $85 | Own 100 shares at $95, a $840 paper loss net of premium | Lose the maximum $400 |
The cash-secured put's, in dollars, by a wide margin: it carries the stock's full downside below the strike, less the premium. The spread's long put removes everything below 90. The spread's higher return on capital is the same trade-off seen from the other side: less capital at risk means a larger percentage on a smaller credit, and a smaller cushion before the loss reaches its cap.
For a cash-secured put, assignment is a designed outcome: the seller buys 100 shares at the strike with cash already set aside, and the wheel strategy continues by writing covered calls on them. For a put credit spread, assignment of the short put is an inconvenience: the account briefly holds shares it was never meant to own, the long put still caps the loss, and the position is usually closed rather than carried. Options assignment explained covers the mechanics.
The cash-secured put fits a trader who wants to own the stock at the strike and has the cash to do it; the premium is a discount on a purchase they would make anyway. The put credit spread fits a trader with a neutral to bullish view who does not want the shares and wants the worst case fixed at entry. The account matters too: a cash-secured put needs the full strike value in cash, while a spread needs only its maximum loss, which is why small accounts lean on spreads. The credit spread calculator works through any pair of strikes.
Both sell a put and profit if the stock stays above the strike. A cash-secured put collects more premium and sets aside the cash to buy 100 shares, so its risk runs down to a stock price of zero. A put credit spread also buys a lower put, which caps the loss at the width minus the credit and ties up far less capital.
On a $100 stock, a cash-secured 95 put sets aside $9,500 to collect about $160, while a 95/90 put credit spread sets aside its $400 maximum loss to collect about $100. The spread's return on capital is much higher because its risk is capped.
The cash-secured put, by design: assignment buys 100 shares at the strike with cash already set aside, and the wheel continues with covered calls. Assignment on a put credit spread is an inconvenience, and the position is usually closed rather than carried.
More in Strategies and structures: Managing a Tested Iron Condor: Close, Roll or Hold · When a Credit Spread Gets Tested: The Mechanics of Each Path · Credit Spreads vs Debit Spreads: How Volatility Decides