The Protective Put — Insurance for Your Stock

A protective put is a hedging strategy: you own a stock and buy a put option on it to protect against a fall — essentially buying insurance for your position.

How it works

You hold shares and buy a put at a chosen strike price (the "floor"). If the stock drops below that strike, the put gains value, offsetting your loss on the shares. If the stock rises, you simply let the put expire and enjoy the gains (minus the premium you paid).

The pay-off

• Stock falls — losses below the strike are capped; the put acts as a floor.
• Stock rises — you keep the upside, reduced only by the premium cost.

So a protective put caps your downside while leaving upside open — the opposite trade-off to a covered call.

When to use it

• Before an uncertain event (results, news) where you want to keep holding but fear a drop.
• To protect large unrealised gains without selling (and triggering tax).

The cost

Insurance isn’t free — the premium is a drag on returns if the feared fall doesn’t happen, like paying for cover you didn’t need. Puts also lose value to time decay. Frequent protection can be expensive.

The takeaway

A protective put is a clean way to define your worst case on a holding. Use it selectively — around specific risks — rather than permanently. Options are high-risk instruments; understand them first. Education only, not advice.