The Stock Exchange of Thailand (Thai: ตลาดหลักทรัพย์แห่งประเทศไทย; abbr. SET) is the only stock exchange in Thailand. Founded on 30 April 1975, it is ASEAN’s 3rd largest after Indonesia Stock Exchange and Singapore Exchange by market capitalization at US$489.95 billion (both SET and mai) as of November 2023. From 2015 to June 2020, it was the biggest IPO market in Southeast Asia in terms of accumulated raised fund at US$17.8 billion (THB 598.0147 billion). It is also the region’s most active bourse for 10 consecutive years with daily trading turnover normally exceeding US$2 billion.
In recent years, the number of market participants has risen sharply trading accounts has increased almost 10 times from 2008 to 2022.
SET index is the oldest and the most cited equity index in Thailand. It made intraday all-time high at 1852.51 on 27 February 2018, surpassing the previous high of 1789.16 on 5 January 1994.
SET has stricter price regulations than some other exchanges, normally disallowing stock prices to rise or drop more than 30% in a day.