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U.S. regulator says 'flash crash' manipulation hard to detect

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Reuters CHICAGO
Last Updated : Apr 25 2015 | 2:28 AM IST

By Suzanne Barlyn

CHICAGO (Reuters) - The type of alleged market manipulation by the British trader accused of helping provoke the "flash crash" in 2010 is hard to detect, the chief of the Financial Industry Regulatory Authority said on Friday.

Nonetheless, the alleged abuses were "somewhat surprising" given that his behaviour was identified in 2009 but continued for another five years, said Richard Ketchum, chairman and chief executive of FINRA, a self-funded regulator for Wall Street.

Still, Ketchum said he was hesitant to question the goings-on at other regulators.

"I won't second guess what happened at the MERC without understanding the facts themselves," said Ketchum, referring to the Chicago Mercantile Exchange, the market that Navinder Singh Sarao has been accused of manipulating from his home outside London.

Ketchum made the comments in Chicago during a panel discussion at the Society of American Business Editors and Writers' (SABEW) annual conference.

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Ketchum said the nature of spoofing itself made the practise difficult for regulators to detect. The manipulation was typically carried out through multiple firms and accounts.

Regulators needed to spot the same trading activities "again and again" in order to identify the practise as spoofing, Ketchum said.

The prevalence of spoofing amid algorithmic trading in general was "very low" and "at the very edges," Ketchum said. But it was still done enough that "regulators should care about it," he said.

CME Group Inc , which owns the Chicago Mercantile Exchange, denied on Wednesday allegations that the futures markets caused the flash crash. CME said it was prohibited by law from releasing any information on Sarao, who owned a seat on the exchange.

(Additional reporting by Herbert Lash in New York; Editing by Ted Botha)

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First Published: Apr 25 2015 | 2:18 AM IST

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