All options have a limited useful lifespan, and every option series has a specified expiration date. The expiration date is the end of the option’s contractual life. Exercise instructions must meet the contract and broker deadlines, and exercise or settlement obligations can remain after the option stops trading.
When do Options Expire?
Standard monthly U.S. equity options commonly expire on the third Friday of the month. Weekly, daily and other schedules also exist for selected products. Holidays can alter the dates, and last trading times and broker instruction cutoffs can differ. Read the exact series and exchange calendar.
Expiration Cycles
Historically, stock-option listings used three expiration cycles. In the JAJO cycle, the expiration months are the first month of each quarter: January, April, July and October. The FMAN cycle consists of February, May, August and November. The MJSD cycle consists of March, June, September and December. These terms explain older option-chain examples; they are not a complete description of today’s listings.
When listed stock options first began trading in 1973, available expiration months followed the cycle assigned to the stock. Later conventions provided two near-term months plus months from the assigned cycle, broadening the choices for short-term hedging.
Determining the Expiration Cycle
In the historical four-month system, a reader could infer the assigned cycle from the later listed months. Modern option chains can also include weekly, quarterly, end-of-month and long-dated series. Use the actual listed expiration dates rather than this older shortcut to decide which contracts are available.
Older cycle examples often treated January separately because of January LEAPS expirations. Do not infer the complete current listing schedule from that convention. Check the specific long-dated option series and its expiration date.
Expiration Calendar
Expiration, last trading day and settlement
These are separate concepts. Some index options use an opening settlement value and stop trading before expiration; other series use a closing value. Exercise style and cash or physical settlement also depend on the product. Do not assume that a familiar equity-option schedule applies to an index or futures option.
Short-term options applications
Explore Short-Term Options Trading to see how weekly, 1DTE and 0DTE expirations affect timing, price sensitivity and expiration risk. Availability and settlement depend on the selected product and series.
Four dates or times to record
| Milestone | Question |
|---|---|
| Last trading time | When can this series last be closed on its exchange? |
| Instruction cutoff | When must this broker receive exercise or contrary instructions? |
| Expiration / reference | Which date and official price determine processing or settlement? |
| Settlement | When do shares or cash actually move? |
These milestones are not interchangeable. For an expiring equity option, market trading can end before exercise instructions cease. An after-hours stock move can therefore affect a holder’s decision after the option market closes. For traditional AM-settled SPX, last trading ordinarily occurs before the morning used for settlement, leaving exposure to news during the gap.
Record times with a time zone and check holiday exceptions. “Friday expiration” does not tell you whether the reference is an opening calculation or a closing calculation, or whether the last trade was Thursday. A broker can impose an earlier customer cutoff than the clearing process allows.
If your plan is to close, verify a fill rather than merely submitting an order. After expiration, check assignment notices and stock/cash balances. A portfolio that looked like a spread before expiration may contain an unhedged stock position afterward.
