The expiry date is the final day a derivative contract remains in force. After this point the contract is settled, exercised or lapses, and you cannot trade it anymore.
You will also see it called expiration date, especially in US markets. The idea is the same: a hard deadline that decides what happens to your position.
What actually happens on expiry
Expiry is the event that turns a live contract into an outcome. What that outcome looks like depends on the product:
- Options on shares or indices. A call or put either finishes in the money and is exercised, or finishes out of the money and expires worthless. Exercise can be into the underlying shares or into cash, depending on the contract design.
- Futures. The contract is settled, either by physical delivery of the underlying or by cash settlement against a final reference price. Trading in that contract month stops and open positions are closed out by the clearing house.
- Warrants and structured products. These have a stated maturity that works much like an option expiry. The issuer calculates the payoff and pays out or delivers according to the terms.
- Rolling products with no fixed end date. Some contracts, such as perpetual swaps in crypto or many CFDs, have no set expiry. Instead, they use funding or financing to keep positions open. Providers differ on the details.
In all cases, the expiry date removes the time dimension from the instrument. There is no more optionality or carry beyond that point.
Expiry versus last trading day, and how the final price is set
Two dates often get mixed up. The expiry date is the contract’s end-date for rights and settlement. The last trading day is the final session when you can buy or sell the contract on the exchange. For some futures, the last trading day is earlier than the expiry date, especially if the contract involves delivery and the exchange needs time to process notices.
Options add another layer. Equity options in many markets stop trading at the close on their expiry date, then settle based on closing prices. Index options may settle to a special opening or intraday calculation instead. The exact cut-off time, time zone and price source are spelled out in the contract specs and vary by venue.
Exchanges usually publish a specific methodology for the final settlement price. On listed futures and many index options that is often an auction or calculated benchmark rather than the very last trade. The formal term you might see is EDSP, the exchange delivery settlement price. That single figure fixes who owes what on expiry.
Where you will see expiry dates in practice
Expiry is everywhere in derivatives. Common places you will encounter it include:
- Equity and index options. Listed options typically come in standard cycles such as weeklies, monthlies and quarterlies. Contracts list the strike and the expiry month. See how the contracts work in more detail under equity options.
- Futures contracts. Each futures month is a separate contract with its own expiry. Traders roll from the front month into the next to maintain exposure. FX, equity index, rates and commodities all follow this pattern, with local nuances. For background on one example, read about currency futures.
- Warrants, turbos and structured notes. Retail-friendly leveraged products are issued with a maturity date that operates as an expiry.
- OTC derivatives. Swaps and forwards usually have a maturity date instead of “expiry”. The effect is the same: the contract terminates and settles.
By contrast, shares, bonds and ETFs do not have an expiry date in the trading sense, although bonds have a redemption or maturity date that returns principal.
Why expiry matters for price, risk and operations
The approach of an expiry date changes the behaviour of many contracts:
- Time decay accelerates. The time value in options erodes as the clock runs down. Near expiry, small moves in the underlying can swing an option between worthless and valuable.
- Gamma and pin risk. Dealers hedging options face more frequent rebalancing near expiry. Underlyings sometimes “pin” near popular strikes as hedges and closing flows concentrate. This effect varies by market and is not guaranteed.
- Convergence in futures. Futures prices tend to converge towards the spot or reference price as expiry nears, reflecting the shrinking cost of carry window.
- Delivery and margin. Holding a physically deliverable future into expiry can trigger delivery obligations. Brokers often raise margin or restrict opening new positions in the final days to manage operational risk.
- Roll decisions. If you want ongoing exposure, you typically close the expiring contract and open the next one. The price difference between months reflects carry and market expectations.
Operationally, the date and even the cut-off time matter. Some contracts stop trading at the close, others use a midday auction, and some markets follow the local calendar. If a public holiday shifts the schedule, the exchange issues a notice. Brokers and platforms may also set earlier deadlines for instructions like exercise, roll or do-not-exercise. Policies differ by provider.
Options expiry: a simple worked example
Imagine you bought a one-month call option on XYZ plc with a strike of 100 and an expiry on the third Friday of the month. You paid a premium of 2.
- If XYZ finishes at 108 at the official settlement, the call is 8 in the money. If the contract exercises into shares, you acquire stock at 100 and can immediately sell at 108, crystallising 8, which nets to 6 after the 2 premium paid. If it is cash settled, you simply receive 8, again leaving 6 net.
- If XYZ finishes at 99, the option expires worthless. Your loss is the 2 premium and any fees. There is no exercise.
Many clearing systems use automatic exercise for options that are in the money by at least a small threshold at expiry. The threshold and the ability to opt out vary by market and broker, so check the notice from your provider ahead of time if you plan to hold to expiry.
Futures expiry: cash versus delivery
Take a quarterly equity index future. Suppose you are long one contract going into the final week. The last trading day is the day before expiry, and the contract is cash settled. On expiry, the exchange calculates the EDSP from a defined window of index constituent trades. Your position is closed at that reference and the profit or loss appears in your account. There are no shares to deliver.
Now consider an oil future that is physically deliverable. If you still hold it when the notice period starts, you may be assigned to deliver or receive according to the specifications on quantity, quality and location. Most traders avoid this by rolling earlier. Brokers commonly restrict positions as expiry approaches to prevent accidental delivery.
Common pitfalls and differences across markets
- Cut-off times are not uniform. Expiry can be tied to the close, a special opening calculation or a set time of day. Time zones can also catch you out if you trade internationally.
- American versus European exercise. American-style options can be exercised at any time up to expiry. European-style are exercised only at expiry, often to a calculated reference.
- Corporate actions and special events. Dividends, splits or index rebalances near expiry can change settlement mechanics or the level of the final price.
- Provider policies differ. Automatic exercise thresholds, do-not-exercise instructions, and roll tools vary between brokers and clearing houses.
- Not every product expires. Perpetual swaps and many rolling CFDs have no fixed expiry date. Exposure continues as long as margin and financing conditions are met.
In short, the expiry date is the line in the sand for derivatives. Know when it is, how the final price is set, and what your broker will do with your position if you are still holding when that line is crossed.