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What if I don't close my option before expiry?

Nothing goes wrong by itself. If the option is out of the money it expires and disappears. If it's in the money it's exercised, and the shares or cash land in your account over the weekend. The risk is that you've handed the weekend to the market.

Options guide · 7-minute read · Updated 2026-10-26

The short answer

You don't have to close it. Most sellers don't. On expiration Friday the broker and the clearing house handle everything:

• Out of the money: the option expires worthless. It's gone by Monday and the premium is yours.
• In the money by a cent or more: it's exercised. A short put becomes 100 shares; a short call sells your 100 shares at the strike.

The full rule is on what happens at option expiration. What this page is about is the part people learn the hard way: between Friday's close and Monday's open, you're no longer in control.

What lands in your account Monday

The broker usually sends a notice Friday night or Saturday. Some apps show it only on the positions page. Here's how to know if you got assigned.

The weekend is the real risk

Two things can happen after 4:00 p.m. Friday that change the outcome:

1. After-hours moves. The stock can trade after the close. Option buyers have a short window to send exercise instructions, and they can see the after-hours price. A put that closed just out of the money can still be exercised if the stock drops at 4:30. See after-hours moves and assignment.
2. Weekend news. Once you've been assigned, you own the shares through anything that happens Saturday and Sunday. You can't sell until Monday's open.

If you'd closed the option Friday afternoon for a few cents, neither of those could touch you. That's the trade: a few cents of premium against a weekend of exposure.

A worked example (an illustration, not a trade idea)

You sold a $45 put on a made-up stock, XYZ, for $1.00 a month ago. It's expiration Friday, 3:50 p.m. XYZ is at $45.20. The put could be bought back for $0.10. You decide not to. "It's out of the money. Why pay $10?"

Had you paid $10 to close on Friday, the result would have been +$90 and no shares. Instead you're down $600 and holding a stock that just gapped down, with the next decision in the wheel strategy being whether to sell a call on it at a strike below what you paid.

That doesn't mean always close. It means the last few cents of premium aren't free. You're paid them for holding through whatever happens next.

When it makes sense to let it ride

• The option is far out of the money, not a few cents.
• You'd be fine with assignment. You wanted the shares at that strike, or you wanted to sell at that strike.
• Closing would cost more than the risk is worth to you, and you've thought about the weekend.

When it doesn't: the stock is sitting right at the strike, earnings or news are due, or you'd be upset to wake up with the shares. In those cases, buy it back. See closing options before expiration.

What you can't do

You can't un-assign. Once the shares land, they're yours to keep or sell at Monday's price. You can't refuse exercise. You can't close an option after the market shuts Friday. The only lever you had was before 4:00 p.m.

That's also why "I'll decide on Friday" is a plan that needs a reminder on your phone. How often puts get assigned explains why the stock is often near the strike exactly when you'd rather it weren't.

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