When do options expire?

Standard monthly options on US stocks and ETFs expire on the third Friday of the month. Many stocks and ETFs also list weekly expirations, usually on Fridays, and some of the most traded products, such as SPY, QQQ and SPX, have an expiration every trading day. Same-day contracts are covered in our 0DTE options guide.

Expiration day is also the last trading day. Options on individual stocks stop trading at 4:00 p.m. ET, the end of the regular session; options on some broad ETFs and indexes trade until 4:15 p.m. ET, and the 0DTE guide lists the product-by-product cut-offs. In Riyadh, 4:00 p.m. ET is 11:00 p.m. until November 1, 2026, then midnight once US clocks fall back. On half-day sessions everything moves earlier; the holiday calendar and a live clock are on our US stock market hours page.

If the expiration Friday is an exchange holiday, such as Good Friday, expiration usually moves to the business day before, normally Thursday, and the trading and exercise deadlines move with it. The option chain shows each contract’s real expiration date, so check it around holidays.

What happens to ITM, ATM and OTM options at expiration?

At expiration an option has no time value left, only intrinsic value: how far it is in the money. So the closing price of the underlying decides what each contract becomes. A call is in the money (ITM) when the stock is above the strike, and a put when the stock is below it. At the money (ATM) means the stock closes at the strike; out of the money (OTM) means a call strike above the stock or a put strike below it. An option that closes exactly at the strike is not exercised automatically, but it is where pin risk lives, as explained below.

Hypothetical: stock XYZ closes at $50.40 on expiration Friday. Here is what happens to one contract of each option if you hold it and do nothing:

  • $45 call, in the money by $5.40: exercised automatically. You buy 100 shares at $45, paying $4,500.
  • $50 call, in the money by $0.40: also exercised. You buy 100 shares at $50, paying $5,000, for an option that was worth about $40 at the close.
  • $55 call, out of the money: expires worthless, and the premium you paid is gone.
  • $50 put, out of the money: expires worthless.
  • $52.50 put, in the money by $2.10: exercised. You sell 100 shares at $52.50; if you do not own them, you are now short 100 shares.

Turn your phone sideways to read the drawing. Tap to close.

A hand-drawn payoff diagram of a long call at expiration: below the strike the line is flat at the maximum loss, equal to the premium, because the call expires worthless; above the strike it rises, crosses zero at the breakeven circle and moves into profit.

Automatic exercise: the $0.01 rule

You do not have to do anything for an in-the-money option to be exercised. Under its exercise-by-exception procedure, the Options Clearing Corporation (OCC), the clearinghouse behind US listed options, automatically exercises expiring stock and ETF options that are in the money by $0.01 or more at the close, unless the holder’s broker submits instructions not to. Brokers can add their own rules on top, for example closing positions they think the account cannot carry.

The trap is the cash. One exercised call on a $50 stock is a $5,000 stock purchase; ten contracts are $50,000. If the account cannot pay, the broker may close the option for you before the close, or a margin call may follow on the next business day. A long put exercised without the shares in the account creates a short stock position, with its own margin and risk. The option may have cost a few hundred dollars; the exercise can be many times that. Our beginner’s guide to options flags this as one of the first traps.

You can override the default: tell your broker before its cut-off not to exercise an option that is slightly in the money, or to exercise one that is out of the money. Both are rare, and both are usually better handled by selling the option before the close, which also captures any time value left.

Exercise
Using the right an option gives: buying the shares at the strike with a call, or selling them at the strike with a put. Only the holder of a long option can exercise.
Assignment
The notice that tells an option seller to fulfil the contract: deliver shares at the strike for a short call, or buy them at the strike for a short put.
Exercise by exception
The OCC procedure that automatically exercises expiring equity options that are in the money by $0.01 or more at the close, unless the holder’s broker instructs otherwise.
Pin risk
The uncertainty when the stock closes at or very near a strike on expiration day, so neither side knows for sure whether the option will be exercised.

Turn your phone sideways to read the drawing. Tap to close.

A hand-drawn flowchart of expiration. Question: in the money by $0.01 or more at the close? Yes leads to automatic exercise, where a long call buys 100 shares at the strike and a long put sells 100 shares at the strike, and the seller is assigned the other side. No leads to expires worthless. A highlighted note says to close or roll before expiration to avoid this.

The exercise cut-off and after-hours risk

Trading in a stock option ends at 4:00 p.m. ET, but the decision does not. Under FINRA rules, holders have until 5:30 p.m. ET on expiration day to submit an exercise decision, and brokers can set an earlier internal deadline. In Riyadh, 5:30 p.m. ET is 12:30 a.m., after midnight, until November 1, 2026, then 1:30 a.m.

The automatic test uses the regular-session closing price, but the stock keeps trading after hours. If news moves it between 4:00 and 5:30 p.m., a holder can still choose to exercise an option that closed slightly out of the money, or decline one that closed slightly in the money. The seller can no longer trade the option and only finds out the next morning. This is pin risk: when the close is near a strike, neither side is sure what Monday’s position will be.

Hypothetical: XYZ closes at $49.98, two cents below a $50 strike, so a $50 call would normally expire worthless. At 4:45 p.m. the company announces good news and XYZ trades at $51.50 after hours. A holder can tell the broker to exercise before the cut-off. The trader who sold that call, expecting it to expire, is assigned: short 100 shares at $50 with the stock trading higher. The same can happen in reverse to put sellers, and to anyone holding the short leg of a vertical spread or an iron condor through expiration.

What is option assignment, and when can it happen?

If you sold an option, you have an obligation, not a right. When a holder exercises, the OCC assigns the exercise at random to a clearing firm with a short position in that series, and the firm allocates it to one of its customers at random or by another fair method, such as first in, first out. You cannot choose whether you are assigned.

Options on US stocks and ETFs are American-style, so a short option can be assigned on any business day before expiration, not only on the last day. Early assignment is uncommon while an option still has time value, because the holder would usually do better selling it. It becomes more likely when a short option is deep in the money with little time value left, and for short calls just before an ex-dividend date, when a call holder may exercise to collect the dividend. What assignment means in practice:

  • Short call assigned: you must deliver 100 shares per contract at the strike. If you own them, as in a covered call, they are called away. If you do not, you become short 100 shares.
  • Short put assigned: you must buy 100 shares per contract at the strike, which is the plan in a cash-secured put and a surprise in an unplanned one.
  • Timing: assignments from expiration are processed overnight, and the shares or the short position usually show in your account before the next business day’s open.

Physical delivery vs cash settlement

Options on US stocks and ETFs settle by physical delivery. One standard contract covers 100 shares, and exercise means shares change hands at the strike, settling one business day later. Contracts adjusted after a split, merger or special distribution can deliver something different, so check the terms of any contract with an unusual symbol.

Many index options, including SPX, are European-style and cash-settled. They can be exercised only at expiration, and an in-the-money contract pays the difference between the settlement value and the strike, times $100, in cash. Hypothetical: an SPX 6,500 call that settles at 6,520 pays 20 × $100 = $2,000 on the next business day. No shares change hands and there is no early assignment. Standard monthly SPX options are also AM-settled, with their last trading day usually the Thursday before; the details are in SPX vs SPY options.

Why close or roll options before expiration?

For most option buyers, expiration is something to manage rather than wait for. The main reasons many traders close or roll first:

  • Time value: selling before expiration captures any time value left; exercising or letting the option expire does not.
  • Cash and margin: exercise can require many times the option’s price, or create a stock position you did not plan.
  • Overnight risk: shares delivered after Friday’s close carry the weekend’s news into Monday’s open.
  • Pin risk: a close near the strike leaves you unsure whether you will hold a position on Monday.
  • Spreads: if only one leg of a spread or a straddle finishes in the money, the hedge you counted on is gone and a single leg becomes shares.
  • The last hour: time decay and gamma are at their most extreme, as the options Greeks guide explains.

How to roll an option, and a simple expiration routine

Rolling means closing the expiring option and opening a similar one with a later expiration, often at a different strike, as one order or two. Sellers roll to keep a position and push back assignment; buyers roll to keep a view alive. Either way it is a new trade with its own cost and risk, not a way to erase a loss. And if you actually want the shares, letting an in-the-money call be exercised is a legitimate choice, as long as you make it on purpose with the cash in the account.

A simple routine:

  1. At the start of the week, list every option you hold that expires that week.
  2. For each one, decide: close, roll or hold to exercise, and check that the account can carry the shares if you hold.
  3. Act before the final half hour, for example by 3:30 p.m. ET (10:30 p.m. Riyadh until November 1, 2026, 11:30 p.m. after), when spreads widen and decay is fastest.
  4. If you sold options, check after the close and again the next morning for any assignment.