When Do Options Expire? Expiration Dates Explained
Reviewed by Leon Moyer - Published October 9, 2026 - Last reviewed October 9, 2026
In this lesson
Identify when an option expires and which kind of expiration it has, and explain how the time left changes what an option costs.
An option's expiration date is the last day its right exists. An open option is then exercised or expires. Standard monthly U.S. stock options expire on the third Friday of the month; many stocks and ETFs also list weeklies, while some index and ETF products have daily expirations.
Standard U.S. stock options normally stop trading at 4:00 p.m. Eastern on a full expiration day. Exercise instructions must meet your broker's deadline, which can precede FINRA's 5:30 p.m. Eastern regular-day limit. Some ETF options and early closes differ.
The strike sets the exercise price; expiration sets the time available.
When do options expire?
Every option is listed with a fixed expiration date, and you choose it when you trade, just as you choose the strike. Most listed expirations fall into one of these groups:
LEAPS (Long-Term Equity AnticiPation Securities) are ordinary options with a long life. As time passes, a LEAPS contract becomes a regular monthly option. Its rules do not change; only its distance from expiration does.
If a third Friday falls on an exchange holiday, such as Good Friday, the monthly expiration moves to the business day before it, usually the Thursday.
For example, SPY, QQQ and IWM can list expirations every weekday; a 2024 Cboe EDGX rule filing added Tuesday and Thursday IWM expirations to match SPY and QQQ. Listings change; check Cboe's available weekly expirations and the actual option chain.
How do you read an option's expiration?
An option is named by its underlying, its expiration, its strike and its type, in roughly that order: XYZ Nov 20 50 call is a call on XYZ with a $50 strike that expires on November 20. Brokers also show the days to expiration (DTE), the number of calendar days left. An option with 30 DTE expires 30 days from today.
On an options chain, the same strike on different dates is a different contract with a different price.
What happens on the last trading day?
For standard U.S. stock options, the last trading day is the expiration date itself, and trading in the expiring contracts normally ends at the 4:00 p.m. Eastern close on a full trading day. Holiday sessions can close earlier. Until then, you can sell a long option or buy back a short one like any other day.
The trading close, exercise deadline and expiration are separate events:
- Exercise instructions. A holder who wants to exercise, or wants to stop an automatic exercise, must meet the broker's deadline. On regular trading days, FINRA's outer exercise-decision deadline is 5:30 p.m. Eastern; brokers can set earlier deadlines, and early-close days can have different cutoffs.
- Automatic exercise. OCC normally exercises expiring standard stock options in the money by $0.01 or more using the closing stock price, unless the clearing member submits contrary instructions. Broker account procedures also matter. This is called exercise by exception.
- Expiration. Options not exercised expire worthless. A holder can instruct exercise of an option that was out of the money at the close, so a short option can still be assigned.
What happens on expiration day
Last trading day
Trading in expiring contracts ends at the 4:00 p.m. ET close
Exercise instructions
Meet your broker's deadline; FINRA's regular-day limit is 5:30 p.m. ET
Automatic exercise
At least $0.01 ITM: normally exercised, subject to contrary instructions and broker procedures
Contract expires
Unexercised options expire worthless; OTM options can still be exercised on instruction
Two details catch beginners. The stock can keep trading after 4:00 p.m., so news after the close can change whether an option ends up worth exercising. And AM-settled index options use opening settlement prices and can stop trading earlier than PM-settled ones; check the exchange specifications. What Happens When Options Expire? covers expiration day in detail.
Equity options follow their primary market's hours (Cboe EDGX Rule 21.2); Nasdaq lists the 4:15 p.m. classes. Sources: FINRA's exercise cutoff notice and OIC's exercise-by-exception explanation.
How does the expiration date affect an option's price?
Time is part of what an option buyer pays for. An option with more time left gives the stock more chances to move past the strike, so, with everything else the same, a later expiration generally costs more for American-style stock options. That extra amount is the option's time value, which shrinks as expiration approaches and is zero at expiration, though it can remain during the final trading day.
What costs more in total, though, can cost less per day.
Worked example
The same XYZ 50 call at four expirations
XYZ trades at $50, and you are comparing at-the-money 50 calls with different expirations. The premiums are the model prices the free profit calculator shows at its default inputs (30% implied volatility, 4.5% interest rate), with only the days changed.
- Three times the time (30 days to 90) costs about 1.8 times the premium ($181 to $324): roughly the square root of 3, about 1.73, a common at-the-money rule of thumb, plus a little for interest.
- The 7-day call is the cheapest ticket, at $85, but the most expensive per day of life. A few quiet days can take away much of its value.
- The 365-day call costs the most up front, but each day of time costs the least.
Real prices differ, because implied volatility usually varies by expiration. Premium divided by days is an average cost, not theta or a forecast of the next day's loss.
Illustrative and hypothetical. The ticker and prices are invented for teaching, and the figures exclude commissions, fees, margin interest and taxes, which reduce real results. Past or hypothetical outcomes do not indicate future results.
An illustrative at-the-money time comparison
Premium per contract
Premium per day of life
A correct directional view can still lose if the move comes late. What Is Theta in Options? covers time decay.
What are 0DTE options?
0DTE means zero days to expiration: an option traded on the day it expires. An option that still trades on its expiration date becomes a 0DTE option on its final day, and products with daily expirations offer a new one every trading day.
At- or out-of-the-money 0DTE options can have small premiums and move by large percentages within minutes because little time remains. Deep-in-the-money contracts can still cost a lot because of intrinsic value. A cheap 0DTE option can lose its entire premium within hours, so these are not a starting point for a beginner.
Check your understanding
XYZ has standard monthly options listed for November 2026. On what date do they expire?
Show answer
Friday, November 20, 2026, the third Friday of the month. If that Friday were an exchange holiday, expiration would move to the business day before it.
What happens at expiration to a stock option that is $0.25 in the money, if its holder gives no instructions?
Show answer
It is normally exercised through exercise by exception, provided the clearing member submits no contrary instructions. Confirm the broker's account procedures rather than relying on exercise being guaranteed.
A 30-day call costs $1.81 and a 90-day call on the same strike costs $3.24. Which one costs less per day of time?
Show answer
The 90-day call: $324 over 90 days is $3.60 a day, against $181 over 30 days, about $6.03 a day.
Key takeaways
- The expiration date is the last day an option exists; after it, the right is exercised or gone.
- Standard monthly U.S. stock options expire on the third Friday of the month; weekly, daily and long-dated LEAPS expirations also exist.
- Expiring stock options normally stop trading at 4:00 p.m. Eastern on full sessions. Exercise by exception is subject to contrary instructions and broker procedures.
- The at-the-money illustration costs more in total for more time, but less per day on average. That average is not theta.
- 0DTE options trade on their expiration day and can lose their whole premium within hours.
Common questions
What time do options expire?
Standard U.S. stock options normally stop trading at 4:00 p.m. Eastern on expiration day. The regular-day exercise-decision deadline is 5:30 p.m. Eastern under FINRA rules, but brokers can require earlier instructions. ETF/index hours and early-close days can differ; check the contract and broker.
What is 0DTE in options?
0DTE stands for zero days to expiration: an option traded on the day it expires. An option that still trades on its expiration date becomes 0DTE on its final day, and products with daily expirations offer a new one every trading day.
When do monthly options expire?
Standard monthly U.S. stock options expire on the third Friday of the month. When that Friday is an exchange holiday, expiration moves to the business day before it, usually the Thursday.
Can you sell an option on the day it expires?
Yes. An expiring option can be bought or sold until trading in it ends on the last trading day. Closing a long position means selling it; closing a short position means buying it back. A closing order must fill to remove the position, and brokers may restrict expiration-day trading.