Hang Seng Index poised for biggest overhaul in 51 years

HONG KONG – Investors will soon discover if Hong Kong’s Hang Seng Index will undertake one of the biggest overhauls in its 51-year history, a move that would impact tens of billions of dollars in funds tracking the stock benchmark.

On Monday (March 1), Hang Seng Indexes Co will offer its conclusion after an industry consultation over proposed changes to the ’s stock benchmark, which if approved would increase the number of member constituents, cap weightings of individual companies and fast-track new listings. The announcement is expected shortly before a press briefing that starts at 4:30pm local time.

The ’s stock market is already undergoing change at a time when China’s tech giants hold growing sway, forcing the index compiler to act on a staid gauge overstuffed with banks and insurers. Hong Kong has become the preferred venue for a wave of Chinese megacaps to sell shares, including standouts like Kuaishou Technology, which surged 161 per cent at its debut in early February after holding the world’s largest internet initial public offering since Uber Technologies.

The announcement will also come on the heels of a record buying frenzy from mainland traders that propelled the HSI past the 30,000 point in January for the first time since May 2019, led by heavyweights like Tencent Holdings and Hong Kong Exchanges & Clearing. If the wide-ranging changes are approved, analysts say that the HSI, which in 2020 lagged global peers by the most in decades, could have more room to run.

“The valuation of the index will be pushed higher as more new economy stocks are expected to join under the changes,” said Dickie Wong, executive director of research at Kingston Securities. “This could also make the index more volatile.”

As part of the proposed changes, Hang Seng Indexes is looking at ensuring that a certain number of benchmark members are classified as Hong Kong firms, which could dilute the influence of some of the largest stocks. The portion of mainland companies in the index by market value was 79 per cent in 2020, according to the December consultation paper.

On Friday, Hang Seng Indexes added three companies to its index following its quarterly review, expanding the constituent count to 55 members from 52. The changes are effective March 15. The benchmark index was 1.3 per cent higher as of 10.36am on Monday in Hong Kong, with Meituan and Tencent Holdings among leading gainers.

Launched in 1969, the Hang Seng Index started out with 33 constituents, rising to 38 in 2007 when it began to include H-share firms. Last year, Hang Seng Indexes added dual class shares and secondary listings to its index in a major revamp, allowing Chinese giants like Alibaba Group Holding Ltd. into the ’s benchmark.

Key changes under consideration

  • Increase the number of constituents to between 65 and 80, from 52 members
  • Remove minimum listing history requirement for inclusion into index. Currently, there is minimum three-month listing based on market value rank
  • Lower the weighting cap of individual constituents, now at 10 per cent, and align the weighting cap of secondary-listed members to 8 per cent
  • Select constituents by industry group to balance representation, Currently, among 12 industries, telecoms, financials and IT cover 80 per cent in terms of market capitalisation as of December 2020
  • Maintain a certain number of constituents classified as Hong Kong companies. The weighting of Hong Kong firms in HSI fell to 42.2 per cent in December 2020 from 45.3 per cent at end-2016

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