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What does it mean when an option expires worthless?

In one line: An option expires worthless when it is out of the money at expiry, so it has no value, no one exercises it, and the seller keeps the full premium.

Trading glossary · Updated 2026-10-26

How it works

An option expires worthless when it's Out of the money at the close on its Expiration date. Using it would make no sense, so no one does.

• A call expires worthless if the stock ends below the strike.
• A put expires worthless if the stock ends above the strike.

Then the contract simply disappears from your account, usually by the next business day. You don't need to do anything.

For the seller, that's the best case on the option. You keep the whole premium, and your promise ends. For the buyer, the premium they paid is gone.

An example (hypothetical)

You own 100 shares of XYZ, bought at $50 (an illustration, not a trade idea). You sell a 30-day $55 call for $1.00 and collect $100. In each row below, XYZ ends under $55, so the call expires worthless.

Every row says "expired worthless." Only two of them are good. In the last row, the option did its job and you still lost $400, because the shares fell.

Why it matters for sellers

"Expired worthless" is a result for the option, not for your account. Always add the shares (or, for a put, the stock's distance from your strike) before you call it a win.

There's also the question of the last few days. Waiting for an option to expire worthless squeezes out the last pennies of Time value. But near expiry, small moves swing the option hard. Many sellers buy back an option for a few cents instead of holding to the bell. That gets rid of Pin risk and Automatic exercise surprises. Our page on whether to let it expire worthless weighs both.

In the wheel strategy, an option expiring worthless just means you start the next step: sell another put, or another call on the shares you still hold.

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