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Chinese securities regulator flags risks of quantitative trading amid heated market debates, some funds suspend fundraising

China's top securities regulator said the fast growing number of "quants" was a challenge to stock exchanges as Chinese investors are having heated debate over quants' role in the thriving stock market.

Exchanges should be paying attention to a surge in quantitative trading and in mature markets, such quantitative and high-frequency trading had led to better liquidity, but also spawned herd behaviours, greater volatility and unfairness, said Yi Huiman, chairman of the China Securities Regulatory . . .


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