What is an expiration date in options?
In one line: The expiration date is the last day an option (or futures contract) can be traded or used. After it, the contract no longer exists.
A simple example with numbers
A stock is at $50. You buy a $52 Call option that expires in 30 days, for $1.50 a share ($150 for one 100-share contract).
- 10 days later, the stock is still $50. The option might be worth around $1.00. Time has passed and there's less of it left for the stock to move.
- On expiration day, the stock closes at $50. The $52 call is out of the money. It expires worth $0. You lost the full $150.
- If the stock had closed at $55, the call would be worth about $3.00, its in-the-money amount.
That shrinking of value over time is called Theta, or time decay. It speeds up in the last few weeks.
The usual schedule in the US
- Monthly options: expire on the third Friday of the month.
- Weekly options: many stocks and ETFs also have Friday expirations most weeks.
- Daily options: some big indexes and ETFs, like the S&P 500, have expirations every trading day. Options traded on their last day are called "0DTE" (zero days to expiration).
Check the exact date and time in your broker, since holidays shift it.
What happens at expiration
- Out of the money: the option expires worthless. Nothing else happens.
- In the money: US equity options in the money by $0.01 or more are usually exercised automatically. A call can turn into 100 shares per contract, which needs the cash to pay for them.
Futures expire too, which is why traders roll them. See Contract rollover.
Why it matters
The expiration date decides how much time your idea has to play out. A right idea with too little time can still lose. Our options trading basics guide covers picking an expiry and a Strike price.
A common mistake
Holding an option into expiration without a plan. Surprise share assignments, sudden swings in the last hour, and options going to zero all happen most on that final day. Decide in advance: close, roll, or let it expire.
Questions
What time do options expire?
Standard US stock options stop trading at 4:00 pm ET on expiration day. Some index options have different rules, so check the contract.
Can I sell my option before it expires?
Yes. Most traders close options before expiration by selling them, rather than exercising them.
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