When a call option expires, one of two things happens: it’s either automatically exercised because it has value, or it expires worthless and ceases to exist. The outcome depends entirely on whether the stock price is above or below the option’s strike price at expiration. What that means for your account, and whether you’re the buyer or the seller, determines the practical consequences.
In-the-Money: Automatic Exercise
A call option is “in the money” (ITM) when the underlying stock’s price is above the strike price at expiration. If you bought a call with a $50 strike price and the stock closes at $55, your option is $5 in the money.
The Options Clearing Corporation (OCC) uses a process called “exercise by exception” that automatically exercises any expiring equity or index option that is in the money by at least $0.01 per contract. This kicks in unless you or your broker submit instructions not to exercise. Most brokers apply this same $0.01 threshold for customer accounts, though some firms set their own slightly different cutoffs. If you want to override the automatic exercise for any reason, you need to contact your broker before the cutoff, which is typically around 3 p.m. Central Time on expiration day.
When your long call is exercised, you buy 100 shares of the underlying stock at the strike price. Using the example above, you’d purchase 100 shares at $50 each, spending $5,000. Those shares then appear in your account, and you own the stock going forward. Your total cost basis includes the strike price plus the premium you originally paid for the option.
Out-of-the-Money: Expires Worthless
A call option is “out of the money” (OTM) when the stock price is at or below the strike price at expiration. If you hold a $50 call and the stock closes at $48, there’s no reason to exercise since you could buy shares cheaper on the open market. The option simply expires, disappears from your account, and you lose the entire premium you paid.
There’s nothing you need to do. The contract vanishes automatically. The money you spent to buy the option is gone.
What Happens to the Seller
If you sold (wrote) a call option, the expiration outcomes are reversed. When the option expires out of the money, you keep the premium you collected and your obligation ends. That’s the best-case scenario for a call seller.
When the option expires in the money, you get “assigned,” which means you’re required to sell 100 shares of the underlying stock at the strike price. If you already own the shares (a covered call), those shares are sold out of your account. If you don’t own the shares (a naked call), your broker will sell shares short in your account at the strike price, creating a short stock position you’ll need to cover.
Assignment can happen at any time before expiration with American-style options (which cover most individual stocks), but it’s most common right at expiration when the option is in the money.
Physical Delivery vs. Cash Settlement
Most stock options are physically settled, meaning actual shares change hands when the option is exercised. You buy or sell 100 real shares per contract at the strike price.
Index options work differently. They’re cash-settled, meaning no shares transfer. Instead, a final settlement price is determined, and the difference between that price and the strike price is paid in cash. If you hold a call on an index with a $4,000 strike and the index settles at $4,050, you receive the $50 difference (multiplied by the contract multiplier) as cash deposited into your account. Nobody delivers anything physical.
When You Can’t Afford to Exercise
Automatic exercise can create problems if you don’t have enough cash or margin in your account to actually buy the shares. Exercising one call contract on a $50 stock requires $5,000. If that money isn’t available, your broker will typically exercise the option anyway (because it’s in the money) and then immediately liquidate the shares to close the position. You’d capture any profit from the difference between the stock price and your strike price, minus the premium you paid, but you won’t end up holding the shares.
Some brokers may sell the option itself in the open market shortly before expiration rather than let it exercise, especially if your account lacks sufficient funds. The specific approach varies by brokerage, so it’s worth knowing your firm’s policy before expiration day arrives. If you don’t want automatic exercise to trigger a position you can’t support, you can sell the option before the close or submit a “do not exercise” instruction to your broker.
Tax Treatment of Expired Options
For the buyer, an option that expires worthless creates a capital loss equal to the premium paid. You report this loss on your tax return for the year the option expired. Whether it’s a short-term or long-term capital loss depends on how long you held the option. If you bought it less than a year before expiration, it’s a short-term loss. Options losses can offset capital gains and up to $3,000 of ordinary income per year, with any excess carried forward to future years.
For the seller, a call that expires worthless means the premium you collected is a short-term capital gain, regardless of how long the position was open. If the option is exercised instead, the premium gets folded into the sale price of the shares, and the tax treatment depends on whether you were writing covered calls (where the rules vary based on how the call is classified) or uncovered calls.
Timing and Expiration Schedules
Standard monthly options expire on the third Friday of the expiration month, with trading ending at the close of the regular session that day. Weekly options, which have become increasingly popular, expire every Friday. The OCC determines whether an option is in or out of the money based on the closing price of the underlying stock.
After-hours price movement can complicate things. The stock might close at $50.50 at 4 p.m. (triggering automatic exercise of a $50 call), then drop to $49 in after-hours trading. You’d still be exercised based on the closing price, and you’d wake up Monday morning owning shares worth less than what you paid. This is one reason some traders prefer to close positions before expiration rather than let them ride to the final bell.