Taipei Exchange (證券櫃檯買賣中心), formerly the Gre Tai Securities Market (GTSM), is a foundation which organized for serving the over-the-counter (OTC) market and bond trading of Taiwan. It was formally found on November 1, 1994. The initial fund of the foundation was donated by the , Taiwan Securities Association, and Taiwan Depository & Clearing. It headquarters is at Zhongzheng District of Taipei City. In February 2015, the Gre Tai securities market changed its name to Taipei Exchange.
The exchange has normal trading sessions from 09:00 am to 02:00 pm and post-market sessions from 02:00 pm to 02:30 pm on all days of the week except Saturdays, Sundays and holidays declared by the Exchange in advance.