Hong Kong benchmark to expand to 100 as part of historic overhaul that reflects city’s changing role as financial hub
- The benchmark currently has 55 constituents, following the addition of three stocks after a regular quarterly review last week
- Expansion viewed as improving Hang Seng Index’s overall coverage and achieving better representation for each industry

Hang Seng Indexes, which compiles Hong Kong’s benchmark index, said on Monday that the number of constituent stocks of the Hang Seng Index will rise to 80 by mid 2022, before ultimately rising to 100.
The overhaul, the biggest in the index’s 52-year history, reflects the changes in Hong Kong’s role as a financial centre. The reforms follow the conclusion of a consultation period in January, which showed strong support for an increase in the number of constituent stocks, as this will improve the benchmark Hang Seng Index’s overall coverage and achieve a more reasonable representation for each industry.
“Over the next year, Hang Seng Indexes is likely to add more stocks from among new economy companies, health care firms and US-listed mainland Chinese technology giants that have a secondary listing in Hong Kong,” said Tom Chan Pak-lam, the chairman of industry body Institute of Securities Dealers.

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Following the increase in its constituent stocks to 80, the Hang Seng Index will cover 71 per cent of the total market capitalisation of Hong Kong, up from 56.6 per cent as of the end of January. It will also cover 66 per cent of market turnover, up from 50 per cent now, Hang Seng Indexes said on Monday.