Expiration (options)

Typically, exchange-traded option contracts expire according to a predetermined calendar. For instance, for U.S. exchange-listed equity stock option contracts, the expiration date is always the Saturday that follows the third Friday of the month, unless that Friday is a market holiday, in which case the expiration is on Thursday right before that Friday.

The clearing firm may automatically exercise by exception any option that is in the money at expiration to preserve its value for the holder of the option and at the same time, benefit from the commission fees collected from the account holder. However, the holder or the holder's broker may request that the options are not exercised automatically. Out of the money options are not exercised automatically.

Upon expiration any margin charged held by the clearing firm of the holder or writer of the option is released back to the free balance of the trader's account.