Options Blueprint
Protective puts
Put a floor under shares you own, like insurance with a deductible.
Goal Put a floor under a stock you own, like buying insurance with a deductible.
How it works with Stock XYZ
Setup: You own 100 shares at $50. You buy one 30-day $45 put for $1.00 and pay $100. Results are shown at expiration, per 100-share contract, ignoring fees, dividends and taxes.
- XYZ falls to $30: the shares lose $2,000, the put is worth ($45 − $30) × 100 = $1,500, and you paid $100. Net = −$2,000 + $1,500 − $100 = −$600. That is your worst case until expiration, no matter how far XYZ falls.
- XYZ rises to $60: the shares gain $1,000 and the put expires worthless. Net = $1,000 − $100 = +$900.
| At expiration | Per share | Per contract (×100) |
|---|---|---|
| Max gain | Unlimited (the stock’s gain minus $1.00) | Unlimited |
| Max loss | ($50 − $45) + $1.00 = $6.00 | −$600 |
| Breakeven | $50 + $1.00 = $51.00 |
The insurance analogy
The $45 strike works like a deductible: you absorb the first $5 a share of a drop. The $1.00 is the premium. A lower deductible (a higher strike) costs a higher premium.
Key risks
- Cost adds up. Buying protection every month is like paying insurance premiums. Over a year it can eat a large share of returns.
- Time decay. If nothing happens, the put slowly loses value and expires worthless.
- Protection ends at expiration. A drop the day after doesn’t count.
- Volatility. Protection tends to be most expensive when people are most worried.
What can go wrong: paying for protection you didn’t use
Hypothetically, if you bought a similar $1.00 put every month for a year and XYZ never fell below the strike, you would have spent about $1,200 on protection that all expired worthless. The cost of protection is certain; the benefit is not.
Who tends to use it
Someone with a large gain or a concentrated position who wants a defined worst case for a set period (for example, ahead of a big expense or a known event), and who accepts the cost.
Related glossary terms
Related Options Blueprint topic
- Protective Puts: Insurance for Your Stocks
We’ll cover these topics in the future. See all Options Blueprint topics.
Important: please read
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Options are not suitable for everyone. Options are complex and carry significant risk. They can lose money quickly, including the full amount you paid. Some strategies can lose more than the premium received or paid, and some (such as selling uncovered calls) have unlimited potential losses. Assignment can happen at any time before expiration on most stock and ETF options, and prices can gap sharply on news.
Hypothetical examples only. “Stock XYZ” and all prices, premiums and results on this page are made up for illustration. They ignore commissions, fees, bid/ask spreads, dividends, interest, margin requirements and taxes, all of which affect real results. No real tickers are used, and nothing here is a trade recommendation.
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