Plain-English definitions, reviewed by an independent investor

Strike Price

The strike price is the fixed price at which an option lets you buy or sell the underlying stock.

The strike price is the fixed price at which an option lets you buy or sell the underlying stock.

(The preset exercise price in an option contract)

Why it matters

It defines whether an option is in or out of the money.

Common confusion

An option is only exercised when it pays to do so versus the market price.

Definitions reviewed by the Investing Glossary editorial team.

Frequently Asked Questions

In the money?

A call is ITM when the stock is above strike; a put when below.

Strike vs spot?

Strike is the contract price; spot is today’s market price.

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