Selling Puts for Income: Worked Examples (Cash-Secured Puts)
Selling cash-secured puts is how many investors start collecting option premium while agreeing, in advance, to buy a stock or ETF they already like. This guide walks through the mechanics with worked numbers — not hype.
What “selling puts for income” actually means
When you sell a put, you take on an obligation: if the buyer exercises, you buy 100 shares per contract at the strike. A cash-secured put means you keep enough cash to do that. You keep the premium either way. If the put expires worthless, that premium is the whole result for the cycle. If you are assigned, the premium reduces your effective purchase price.
That is also the start of the Wheel options strategy: sell puts on names you would hold, then sell covered calls after assignment.
Worked example 1 — one cash-secured put
Setup: Stock at about $47. You sell one put, strike $45, premium $0.75 per share, 28 days to expiration, broker fee $0.65 per contract.
- Cash to secure: 45 × 100 = $4,500
- Gross premium: 0.75 × 100 = $75.00
- Net premium after fee: 75.00 − 0.65 = $74.35
- Return on capital for the cycle: 74.35 ÷ 4,500 = 1.65%
- Annualized comparison (if you could repeat the same trade): 1.65% × (365 ÷ 28) ≈ 21.5%
- Breakeven if assigned: 45 − 0.7435 ≈ $44.26 per share
The 21.5% figure is a ruler for comparing trades — not a forecast of what you will earn over a year.
Worked example 2 — why the “bigger” premium can be worse
Compare two puts with the same 35-day expiration and a $0.65 fee:
| Put A ($25 strike) | Put B ($100 strike) | |
|---|---|---|
| Premium / share | $0.40 | $1.10 |
| Cash secured | $2,500 | $10,000 |
| Net premium | $39.35 | $109.35 |
| Return on capital | 1.57% | 1.09% |
| Annualized (comparison) | ≈16.4% | ≈11.4% |
| Breakeven if assigned | $24.61 | $98.91 |
Put B pays more dollars. Put A pays more per dollar of cash tied up. Always ask whether you want 100 shares at the breakeven price if the stock keeps falling.
Worked example 3 — after assignment
Suppose Put Example 1 assigns you 100 shares. Your net basis is about $44.26. You sell a covered call, strike $45, premium $0.50, 30 days, fee $0.65.
- Net call premium: 50.00 − 0.65 = $49.35
- If shares are called away at $45: stock gain vs basis ≈ (45 − 44.26) × 100 = $74, plus $49.35 call premium ≈ $123.35 on top of the earlier put premium already kept
- If the call expires, you keep $49.35 and can sell another call — still owning the shares and their downside risk
A short checklist before you sell a put
- Would I happily own this stock for months at the breakeven price?
- Is capital ≤ a small slice of the account (many traders keep large cash reserves)?
- Did I compare return on capital, not just premium dollars? Use the Wheel premium calculator.
- Is a fat premium really compensation for earnings, a lawsuit, or a fragile balance sheet?
- Do I know my plan if assigned — sell calls above cost basis, reduce size, or exit?
More detail: Cash-secured puts explained, how the Wheel works, and how to compare premiums honestly.
FAQ
How much cash do I need to sell a cash-secured put?
One standard put covers 100 shares, so collateral is roughly strike price times 100, before premium. A $40 strike needs about $4,000 set aside. Keep extra cash so one assignment does not use your whole account.
Is selling puts for income the same as the wheel strategy?
Selling cash-secured puts is the first leg of the wheel. If the put expires, you may sell another. If you are assigned, you own shares and can sell covered calls until they are called away.
What annualized return should I expect from selling puts?
There is no promised rate. Annualized figures are a comparison ruler. They assume you could repeat the same premium all year with no losses, which markets do not guarantee.
What if the stock drops after I am assigned?
Premium lowers your effective purchase price but does not cap losses. If the shares keep falling, you can lose more than the premium collected. Stock selection and position size matter more than a rich premium.
Educational only, not financial advice. Options involve risk.