Protective Put: How It Works, Example and Risks

A protective put buys a put on shares you own to set a floor under losses. Traders use it as insurance through uncertain periods. The main cost is the premium, which reduces returns if the stock doesn't fall.

At a glance

Outlookbullish
Levelbeginner
Max profitUnlimited (stock upside minus premium)
Max loss(Stock price − strike + premium) × 100
BreakevenStock price + premium
Greeks exposurePositive delta, negative theta, positive vega
Ideal IV environmentLow IV

Payoff diagram

Payoff diagram at expiration. Breakeven $102.BE $102$50$150

Worked example

Own 100 shares at $100 and buy the $95 put for $2.00. Max loss is ($100 − $95 + $2) × 100 = $700, no matter how far the stock falls. Breakeven is $102.

How to manage it

  • Match expiration to the period you want covered.
  • Use a collar to offset the cost.
  • Roll the put down after a rally to lock in gains.

Risks

  • Premium is lost if the stock doesn't fall.
  • Ongoing cost if repeated.
  • Protection ends at expiration.
Try it in the profit calculator

Questions

Is a protective put like insurance?

Yes — the premium is the cost and the strike is the deductible floor.

How much does protection cost?

It depends on strike, time and IV; closer strikes and longer dates cost more.

Can I sell the put later?

Yes, you can close it any time before expiration.

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