CONCEPT · October 16, 2026
HOW IT WORKSThe protective put: insurance for your portfolio
Just as you insure your car or your home, you can insure your stocks against a sharp fall. That is a protective put.
WHAT IT DOES
sets a floor
under your losses
WHAT IT COSTS
a premium
like insurance
WHAT YOU KEEP
the upside
if the market rises
THE IDEA
insurance
pay a little to avoid losing a lot
A put gives you the right to sell your stock at a fixed price. If the market sinks below that price, your put gains value and offsets the drop. If nothing happens, you only lose the premium, like any insurance.
THE RULE
SIMPLE EXAMPLE2%
2%
rough cost of the hedge
Paying 2% to avoid a 20% or 30% fall can feel expensive in a good year and cheap in a bad one. That is every insurance dilemma.
A typical figure: protecting a portfolio for a few months can cost around 2% of its value. Like an annual policy.
- HEDGE
- — A position that reduces the loss risk of another position.
- POLICY
- — An insurance contract: you pay a fee in exchange for protection.
KEY IDEA
SIMPLE RULEIt does not stop the scare, it stops the ruin
“Insurance does not stop the crash. It stops the crash from ruining you. A protective put does exactly that for your portfolio.”
A put does not stop the market from falling: it stops that fall from costing you more than you chose to risk.
- RISK
- — The chance of losing money. The put caps it at a known maximum.
- FLOOR
- — The level below which your losses stop growing.
HOW IT WORKS
THE CHARTYour portfolio falls... until it hits the floor
Without the put, the line would keep falling with the market. With it, the line goes flat: that is the floor you bought.
Illustrative chart. With the put, your portfolio value falls to a floor and stops there, no matter how far the market drops.
- FLOOR
- — The level where the put offsets any further fall.
- STRIKE
- — The price that sets that protection floor.
WHAT IT MEANS
THREE KEYSThree things to know before you use it
YOU KEEP THE UPSIDE
Unlike selling, you stay in the market. If it rises, your portfolio gains too, just with the insurance paid for.
YOU CAP THE DOWNSIDE
The put sets a floor. Below that level, your losses stop growing: that is the value of the insurance.
YOU PAY A PREMIUM
The insurance costs money. If the market does not fall, you lose the premium, just as you pay car insurance even without a crash.
A protective put has clear upsides and a real cost. All three are worth understanding.
- PREMIUM
- — The cost of the option, like an insurance fee.
- EXPIRY
- — The date the option expires and stops protecting.
WHAT DRIVES IT
THE PRICEWhy a put costs more or less
Buying insurance once panic is here is like buying the policy with the fire already going: very expensive.
The premium is not fixed. It depends mostly on three factors. An illustrative split to see them at a glance.
- VOLATILITY
- — How much price is expected to move. More movement, pricier options.
- STRIKE
- — The fixed price at which the put lets you sell.
EXAMPLES
WAYS TO HEDGEFive ways to protect a portfolio
| SPY | ~660 | → ~ | The index you would typically hedge with a protective put. |
| VIXY | ~15 | → ~ | Tracks volatility: it tends to rise when the market falls. |
| SH | ~12 | → ~ | Inverse S&P ETF: it gains when the index falls. |
| TLT | ~89 | → ~ | Long bonds: a classic hedge during fearful phases. |
| GLD | ~383 | → ~ | Gold: a haven that often moves apart from stocks. |
Not only with puts: these are common hedging routes. Rounded levels, the concept is timeless.
- ETF
- — A listed basket tracking an index or theme, traded like a stock.
- DECORRELATION
- — When one asset does not move in step with another: useful for diversifying.
WRAP
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- PUT
- — An option giving the right to sell at a fixed price: the basis of portfolio insurance.
- HEDGE
- — A position that reduces the loss risk of another.