Naked Put Options Strategy Guide
A naked put (also called an uncovered or margin put) is a short put sold without reserving the cash to buy the shares. The broker holds a margin requirement instead, typically a fifth or less of the strike value, so the premium collected is a much larger percentage of the capital actually committed. The option itself is identical to a cash-secured put: same premium, same breakeven, same obligation to buy 100 shares at the strike if assigned. What changes is the collateral, and with it the leverage and the return math.
Key takeaways
- A naked put is a short put backed by margin, not by the full cash to buy the shares
- Same max loss as a cash-secured put; far less capital tied up, so far higher return on capital
- Reg-T margin is roughly 20% of the stock price minus the out-of-the-money amount, plus the premium
- Margin calls, not expiration, are how naked put sellers get hurt in a crash
When it makes sense
- You sell puts as an income strategy and want capital efficiency across many positions
- You have a margin account with the option approval level for uncovered options
- Implied volatility is elevated and strikes well out of the money still pay
- You can absorb assignment on every open put at once, because in a crash you may have to
How it works
Sell one put below the current price in a margin account. Instead of reserving 100 times the strike, the broker requires the standard Reg-T uncovered-option margin: the greater of 20% of the stock price minus the amount the put is out of the money, or 10% of the strike, plus the premium received, all times 100. That requirement is recalculated every day, so it grows as the stock falls toward the strike. The payoff at expiration is unchanged from a cash-secured put: keep the premium above the strike, buy shares at the strike below it, breakeven at strike minus premium.
Risk and reward
Maximum profit: the premium. Maximum loss: (strike minus premium) times 100 if the stock goes to zero, exactly the same dollars as the cash-secured version. The difference is the denominator. Return on risk for a naked put is measured against the margin requirement, not the strike, which is why a trade that yields 1.3% cash-secured can show 10% or more on margin. That leverage cuts both ways: a 20% drop in the stock can exceed the initial margin several times over, forcing you to add cash or be liquidated at the worst moment.
Greeks and volatility
Identical to a cash-secured put: positive delta, positive theta, negative vega, with delta growing as the stock falls toward the strike. What margin adds is a second-order effect: because the requirement rises with the stock's decline and with implied volatility, a sell-off increases both your paper loss and the capital the broker demands at the same time. Portfolio-margin accounts use a risk-based calculation that is usually lower than Reg-T but moves the same direction.
Managing the trade
Size by the assignment value (strike times 100), not by the margin requirement, and keep enough buying power to take delivery on every open put in a broad sell-off. Rolling down and out for a credit is the standard defense as the stock approaches the strike; closing at 50% of max profit is the standard offense. Early assignment is rare for puts (there is no dividend to capture) but possible when the put is deep in the money with little time value. If assigned, the shares are bought on margin, and the position becomes a leveraged long stock position until you sell or write covered calls against it.
Worked example
Stock at $100. Sell the 30-day $90 put for $1.20, a $120 credit. Reg-T margin is the greater of (20% of $100 minus the $10 out-of-the-money amount) = $10 and (10% of $90) = $9, plus the $1.20 premium: $11.20 per share, or $1,120 per contract. Return on margin is $120 / $1,120 = 10.7% for the trade, versus $120 / $9,000 = 1.3% if the same put were cash-secured. If the stock finishes above $90 you keep $120. If it finishes at $80 you are assigned at an effective $88.80 basis, a paper loss of $880, and your margin requirement on the way down will have climbed well past the initial $1,120.
What to screen for
Screen naked puts the way you screen cash-secured puts, high probability of expiring worthless, elevated implied volatility rank, liquid names, no earnings inside the window, then judge them on return on margin and annualized return on margin rather than return on the strike. The scanner shows the Reg-T margin requirement per contract alongside the premium so the leverage is explicit. Sort by market cap to keep the list on names that can survive a bad month.
Scan the market for naked puts
OptionClaws ranks naked puts across the options market by return, probability, and liquidity, refreshed intraday. Free for 7 days, no card required.
Frequently asked questions
- What is the difference between a naked put and a cash-secured put?
- The collateral. A cash-secured put reserves the full strike value in cash; a naked put reserves only the broker's margin requirement. The option, the premium, the breakeven, and the worst-case dollar loss are identical.
- How is margin calculated on a naked put?
- Under Reg-T: the greater of 20% of the stock price minus the out-of-the-money amount, or 10% of the strike, plus the premium received, times 100. Brokers may require more, and the figure is recalculated daily.
- Is a naked put riskier than a cash-secured put?
- The maximum dollar loss is the same. The risk is leverage: because less capital is reserved, traders tend to sell more contracts, and a sharp decline can trigger margin calls before expiration.
- Why does the scanner show a much higher return for naked puts?
- Because return on risk for a naked put is measured against the margin requirement, which is usually a fifth or less of the strike value. The same premium divided by a smaller capital base is a larger percentage.
- Do I need special approval to sell naked puts?
- Yes. Uncovered option selling requires a margin account and the broker's highest or second-highest option approval level, granted based on experience and account size.
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Last updated 2026-08-23. Educational content, not investment advice. Options involve substantial risk and are not suitable for every investor. See our Terms of Service.