Shanghai stock exchange mulls first revamp of benchmark in 30 years


  • Markets
  • Wednesday, 27 May 2020

THE Shanghai Stock Exchange is considering the first overhaul of its benchmark index in three decades so that it better reflects China’s increasingly high-tech economy, according to people familiar with the matter.

The exchange is planning to adjust the timing for newly listed stocks to be included in the index and remove some chronically loss-making stocks, said two of the people, who asked not to be identified as the matter is private. As part of a long-term overhaul under consideration, the exchange may also calculate a company’s market value for the index based on its free float rather than total outstanding shares, said the people.

If approved, that shift could lead to a weighting increase for technology and other new economy sectors and reduce financial services and energy, said two of the people. The bourse is also evaluating whether to include stocks listed on the tech-heavy STAR board into the index, and may create a separate gauge for STAR stocks, one of the people said.

Changes to the methodology are still under review and will reflect market feedback, said the people. A representative from the exchange declined to comment.

The overhaul would bring the Shanghai index more in line with gauges like the S&P 500, which calculates market value based on the free float of shares available for trading, as opposed to the total shares, which include closely held stock owned by insiders. Given the government control of many Chinese companies, the free float on stocks like the Industrial & Commercial Bank of China Ltd. is small.

Lagging Index Launched in 1991, the Shanghai Stock Exchange Composite Index tracks 1,555 stocks on the bourse in China’s financial hub. The index has remained little changed over the past 10 years while the S&P 500 Index has climbed more than 171%, partly because the China gauge hasn’t captured the country’s fast-growing new economy. Eight of the top 10 stocks in the index are financial or energy firms.

Liquor giant Kweichow Moutai Co. tops the index weighting at 5.2%, while financial firms including Industrial & Commercial Bank of China and Agricultural Bank of China Ltd. make up more than a third of the weighting. The industrial sector, which includes PetroChina Co., makes up more than 16% of the capitalization-weighted index.

One challenge for the exchange is the lack of big technology names. Most of the tech and internet giants in China, such as JD.com Inc., Tencent Holdings Ltd. and Alibaba Group Holding Ltd. trade in New York or Hong Kong.

Li Xunlei, chief economist at Zhongtai Securities Co., said that the exchange should act "sooner rather than later” to consider revamping the index by including stocks traded on the STAR board and removing chronically loss-making firms. The STAR board of start-up technology stocks was launched by the exchange last year.

The exchange will take steps to avoid a sudden rise or fall in the index, said the people, adding that changes will be gradual, with new entries added over time.

Lags S&P Although the index has lagged behind U.S. benchmarks in the past decade, it has posted an annualized return of more than 11% since inception, topping the S&P 500 over the same period. The smaller CSI 300 Index, which tracks stocks in Shanghai and Shenzhen and is more widely followed by exchange-traded funds, also has about a 33% weighting in financial services.

The Shanghai index review comes amid growing U.S.-China tensions that may result in more stringent rules for Chinese companies seeking to list in New York. Nasdaq Inc. is planning new rules that would make initial public offerings more difficult for some Chinese companies.

The U.S. Senate meanwhile overwhelmingly approved legislation last week that could lead to Chinese companies such as Alibaba and Baidu Inc. being barred from listing on U.S. exchanges unless they can certify that they’re not under the control of a foreign government. - Bloomberg

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