Hang Seng Index

On the Hong Kong Stock Exchange, a capitalization-weighted stock market index called the Hang Seng Index is used to record and monitor daily changes of the largest companies on the Hong Kong Stock Market.

The Hang Seng is used as the main indicator of the overall market performance in Hong Kong and the 38 companies represent about 65% of the capitalization of the Hong Kong Stock Exchange. Compiled and maintained by HIS Services Limited, a subsidiary of the second largest bank listed in terms of market capitalization Hang Seng Bank, it is responsible from compiling, publishing and managing the Hang Seng Index.