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China’s US$3 trillion stock surge triggers wild volatility reminiscent of 2015 crash

Profit-taking and retail investor frenzy are driving the swings in China’s onshore markets, raising concerns about a potential market correction

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The ChiNext index of start-ups trading in Shenzhen surged 67 per cent within seven trading days up to Tuesday. Photo: Xinhua
Zhang Shidongin Shanghai

The US$3 trillion bull run in Chinese stocks has an unintended consequence: rising volatility that has the potential to match the wild ride seen in the boom-to-bust cycle nearly a decade ago.

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The 10-day realised price swings of the benchmark CSI 300 Index have reached a level not seen since August 2015, according to Bloomberg data. The volatility was amplified as day traders resorted to profit-taking, taking advantage of the steep rise in stock prices. Investors’ mood also turned cautious before a crucial finance ministry briefing on Saturday amid fears the fiscal stimulus announced at the meeting will fall short of expectations.

The CSI 300 has dropped almost 9 per cent since Tuesday, surrendering part of the 35 per cent gain over the past three weeks that added US$3 trillion in market value to China’s onshore stocks.

The swings in smaller companies, an area of retail interest, are even more stunning. The ChiNext index of start-ups trading in Shenzhen surged 67 per cent in the seven trading days up to Tuesday, before erasing nearly half of the gains over the past three days.

The magnitude of volatility underscores the jitters among some investors that the run-up could be fleeting. Besides, the nation’s 220 million individual investors tend to amplify the market fluctuations by chasing rallies and sell-offs. The influx of retail traders, inspired by the central bank’s monetary easing and lifting of curbs on the property market, propelled daily turnover to a record 3.43 trillion yuan (US$484.8 billion) on Tuesday.
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“Some short-term investors who joined the rally earlier may choose to book profits, increasing market volatility,” said Meng Lei, a strategist at UBS Group in Shanghai.

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Wild swings in Hong Kong and mainland China stock markets

Wild swings in Hong Kong and mainland China stock markets
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