The Taiwan Stock Exchange Corporation (TWSE; Chinese: 臺灣證券交易所) is a financial institution, located in Taipei 101, in Taipei, Taiwan. The TWSE was established in 1961 and began operating as a stock exchange on 9 February 1962. It is regulated by the Financial Supervisory Commission.

As of 31 December 2013, the Taiwan Stock Exchange had 809 listed companies with a combined market capitalization of NT$ 24,519,622 million. As of January 2026, one of the listed companies, Taiwan Semiconductor Manufacturing Company, is one of the ten largest public corporations by market capitalization in the world, with a valuation at the end of 2025 of US$1.57 trillion.

The exchange broadcasts before-hour information from 7:40 to 8:40. Then it has normal trading sessions from 09:00 to 13:45 and fixed price post-market sessions from 14:00 to 15:00 on all days of the week except Saturdays, Sundays and holidays declared by the exchange in advance.

In 1994 the Gre Tai Securities Market, which was renamed the Taipei Exchange in 2015, was created for small growth companies. In July 2021, the Taiwan Innovation Board (TIB) was created as an additional market.

The Taiwan Capitalization Weighted Stock Index (TAIEX) is the stock market index that measures the aggregate performance of listed stocks on TWSE; it is the most prominent and most frequently quoted index of stock performance of Taiwanese public companies.^{[citation needed]}