How the trade works
You pick a stock you want to own and a price below the current market that you would happily pay. You sell a put at that strike and collect a premium immediately, while setting aside the cash to buy 100 shares if it comes to that.
Two outcomes follow, and you should be content with both:
- The stock stays above your strike. The put expires worthless, you keep the premium, and you own nothing.
- The stock finishes below your strike. You buy 100 shares at the strike, effectively at a discount equal to the premium you already collected.
A worked example
A stock trades at $50 and you would be glad to own it at $45. You sell one 35-day put with a $45 strike for $1.20 per share, collecting $120, and set aside $4,500 in cash.
The flat line to the right is the trade's ceiling. Whether the stock finishes at $51 or $151, you make $120 and nothing more. To the left, the line descends without a floor until zero, which is the shape of stock ownership. That asymmetry is the honest picture of the strategy.
Effective price and yield
Two calculations turn a put sale into a comparable decision.
In the example, the effective price is $43.80, a 12.4% discount to today's $50. The return on the $4,500 of secured cash is $120 ÷ $4,500, or 2.67% over 35 days, which annualizes to roughly 28%.
That annualized figure carries the same caveat as covered callyields. It assumes you can repeat the trade continuously at identical premiums, which requires volatility to stay elevated and the stock to keep cooperating. Use it to rank candidate trades against each other, not as a forecast of annual income.
The risk the pitch hides
Put selling wins most of the time, which is exactly what makes it dangerous. A 0.25 delta put expires worthless roughly 75% of the time, so a seller can string together many small wins and conclude the strategy is nearly riskless. The losses arrive rarely and arrive large.
Consider a seller collecting $120 per month on a $4,500 commitment. Eleven successful months produce $1,320. A single month in which the stock drops 30% produces roughly a $1,380 unrealized loss on assignment, erasing the year. The strategy's profit profile is many small gains punctuated by occasional large losses, and the win rate tells you nothing about whether it is profitable.
Choosing a strike
Delta again offers the cleanest framing, since it approximates the probability of assignment.
| Strike | Premium | Assignment odds | What you are saying |
|---|---|---|---|
| 0.15 delta, far below market | Small | About 15% | I mostly want the income |
| 0.30 delta, moderately below | Moderate | About 30% | I would like either outcome |
| 0.45 delta, near the money | Large | About 45% | I mostly want the shares |
Check the break-even against the stock's own history and fundamentals before committing. Our company research pages pull revenue, margins, and cash flow directly from SEC filings, which is a better basis for the question "would I want this at $45" than the option premium is.
The wheel
Combining the two income strategies produces what traders call the wheel. Sell cash-secured puts until you are assigned shares, then sell covered calls against those shares until they are called away, then start again.
The wheel is coherent because both legs express the same view: you are content to own this stock in a range, and you are willing to sell the tails of that range for income. It works best on stable, liquid companies you would hold anyway, and it works poorly on high growth names, where being called away at the strike during a run is the expensive outcome the premium never covers.