The Stock Exchange of Thailand (SET) is Thailand's only stock exchange and one of the most active trading platforms in Southeast Asia. It offers trading in a variety of asset classes, including stocks and derivatives, and produces indices that reflect market performance, such as the SET Index (a composite index), the SET50 Index (a large-cap stock index), and the SETTHSI Index (a sustainable investment index). Company Information Foundation Date: The Stock Exchange of Thailand (SET) was established on April 30, 1975, based on the Bangkok Stock Exchange, established in 1962. Market: The SET is Thailand's sole stock exchange and the second-largest in ASEAN by market capitalization, after Singapore. Trading Markets: The SET operates two main markets: the SET Main Market and the Market for Alternative Investment (MAI) for small and medium-sized companies. Trading Products: The SET offers trading in a variety of asset classes, including stocks and derivatives.