Regulators Tie High-Speed Trading to Treasury Volatility

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U.S. officials have concluded that high-frequency tradingBloomberg Terminal contributed to the Treasury market’s wild ride last October, a finding that will probably add to regulatory scrutiny of the industry.

While a soon-to-be-published government report won’t point to just one cause, it will cite speed traders as playing a key role, according to a person with direct knowledge of the study. Treasury yields plunged the most in five years on Oct. 15, 2014, before recovering, fueling a months-long debate over whether something has fundamentally changed in a $12.7 trillion market that most investors consider a safe haven.