Does China's stock market slide matter?

The recent fall in the Chinese stockmarket won't have come as a surprise to anyone except the hordes of novice retail investors. The question now is not will China fall further, but does it matter if it does?

On Tuesday night the Shanghai B-Share index fell 10%. The A-Share market fell 7%. I don't suppose this came as much of a surprise to anyone except the hordes of novice retail investors in China. For some weeks now, most commentators, including several government officials, Asia's richest man, Li Ka-shing, and even Alan Greenspan, have been warning of a bubble. The question now is not will China fall further (it probably will), but does it matter if it does? To that, the answer is that if you look at it rationally, it probably shouldn't.

As Jonathan Allum of KBC, Belgium's largest financial institution, points out, the total market cap of the Chinese markets is smaller by $3bn than just a quarter of the S&P 500, and "even this overstates the true size of the tradable market since around 70% of it is held by the government". And despite all the stories of "stockmarket fever" (every single UK paper has reported this week the fact' that 300,000 trading accounts are opened every day in China this week), less than 10% of the population actually own shares. As is often the way in emerging economies, the stockmarket is not really much of a reflection of the economy as a whole and it is China's fast-growing economy, not its stockmarket, that is driving global growth and markets in much of the rest of the world.

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Merryn Somerset Webb

Merryn Somerset Webb started her career in Tokyo at public broadcaster NHK before becoming a Japanese equity broker at what was then Warburgs. She went on to work at SBC and UBS without moving from her desk in Kamiyacho (it was the age of mergers).

After five years in Japan she returned to work in the UK at Paribas. This soon became BNP Paribas. Again, no desk move was required. On leaving the City, Merryn helped The Week magazine with its City pages before becoming the launch editor of MoneyWeek in 2000 and taking on columns first in the Sunday Times and then in 2009 in the Financial Times

Twenty years on, MoneyWeek is the best-selling financial magazine in the UK. Merryn was its Editor in Chief until 2022. She is now a senior columnist at Bloomberg and host of the Merryn Talks Money podcast -  but still writes for Moneyweek monthly. 

Merryn is also is a non executive director of two investment trusts – BlackRock Throgmorton, and the Murray Income Investment Trust.