Scenario 1: Your Long Call Expires In the Money
You bought a $150 call on Apple. At expiration, AAPL closes at $158.
What happens: Your broker auto-exercises the call. You buy 100 shares of AAPL at $150 ($15,000 total). You now own the shares.
Watch out: If you don't have $15,000 in your account, your broker may sell the option before expiration or close the position Monday morning. Some brokers charge fees for exercise/assignment.
Scenario 2: Your Long Call Expires Out of the Money
You bought a $160 call on Apple. AAPL closes at $155.
What happens: The call expires worthless. The contract disappears. Your loss is the premium you originally paid. No shares change hands.
Scenario 3: Your Long Put Expires In the Money
You bought a $200 put on Tesla. TSLA closes at $185.
What happens: Your broker auto-exercises the put. If you own 100 shares of TSLA, those shares are sold at $200. If you don't own shares, your broker short-sells 100 shares at $200 (risky — you'll owe shares).
Scenario 4: Your Short (Sold) Option Gets Assigned
You sold a $50 put on SoFi. SOFI closes at $47.
What happens: You're assigned. You must buy 100 shares at $50, even though they're only worth $47. That's a $300 unrealized loss per contract, offset by whatever premium you collected.
Assignment can happen before expiration too (early assignment), though it's uncommon for calls and rare for puts unless a dividend is involved.
The $0.01 Auto-Exercise Rule
The OCC automatically exercises any option that's in the money by $0.01 or more at expiration. This is called "exercise by exception." You can instruct your broker NOT to exercise if you prefer, but you must submit a "do not exercise" notice before the deadline (usually 5:30 PM ET on expiration day).
Why would you not want to exercise? If exercising costs more in commissions and capital than the option is worth. For example, a call that's $0.05 in the money = $5 of value, but exercising means buying $15,000 worth of stock. Sometimes it's better to sell the option before close.
What About Spreads?
If you have a vertical spread (one long option, one short option), expiration gets tricky.
Example: You sold a $100/$95 put spread. The stock closes at $97.
This is called "pin risk" or "leg risk." To avoid it, most traders close spreads before expiration if either leg is near the money.
Key Expiration Timelines
| Event | Time |
Practical Tips for Expiration Day
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