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Hang Seng Index

Established in 1969, the Hang Seng Index is the benchmark stock market index, monitoring changes in 48 constituent blue chip stocks. It is maintained by Hang Seng Indexes Company, a unit of Hang Seng Bank, which is controlled by HSBC Group.

Hong Kong stocks face a challenging session on Wednesday after major US indices ended lower on Tuesday. Photo: EPA

Hong Kong stocks tumble with sell-off of best performers

Losses in Hong Kong stocks accelerated in Wednesday’s afternoon trading session with a sell-off in this year’s best-performers including Geely Automobile Holdings, Ping An Insurance and AAC Technologies, forcing the benchmark index to post its biggest daily decline in a year.

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