What is the Hang Seng Index?
The Hang Seng Index is a free-float-adjusted market-capitalization-weighted stock-market index in Hong Kong. It is used to record and monitor daily changes of the largest companies of the Hong Kong stock market and is the main indicator of the overall market performance in Hong Kong. These 50 constituent companies represent about 58% of the capitalization of the Hong Kong Stock Exchange.
Their official website can be found here.
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