The Stock Exchange of Hong Kong (SEHK, also known as Hong Kong Stock Exchange) is a stock exchange based in Hong Kong. As of the end of 2020, it has 2,538 listed companies with a combined market capitalization of HK$47 trillion. It is reported as the fastest growing stock exchange in Asia. The stock exchange is owned (through its subsidiary Stock Exchange of Hong Kong Limited) by Hong Kong Exchanges and Clearing Limited (HKEX), a holding company that it also lists (SEHK: 388) and that in 2021 became world's largest bourse operator in terms of market capitalization, surpassing Chicago-based CME. The physical trading floor at Exchange Square was closed in October 2017.
