The maturity months of the contracts are determined by the Exchange within the contract elements.  Borsa İstanbul A.Ş. For contracts detailed in the Futures and Options Market Procedure and determined by the Exchange, option contracts with a flexible maturity date of up to 180 days can be opened by users in addition to the standard maturity months. (See Borsa İstanbul A.Ş. Futures and Options Market Procedure )

In futures contracts and standard option contracts, the due date and the last trading day will be the last business day of each contract month. For option contracts with flexible maturity dates, the maturity date and the last trading day is the contract maturity date. In case the domestic markets are half a day due to a public holiday, the term and the last trading day of the contract are the previous business day.