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Hounslow trader 'sent millions of trade messages before Flash Crash'

The Hounslow trader accused of helping trigger the Flash Crash of 2010 sent 7.4 million 'trade modification' messages – sometimes seen as a sign of abusive trading – on a single day, according to prosecutors seeking to extradite him to the US.

Singh Sarao arrives at Westminster Magistrates Court on Feb 4
Singh Sarao arrives at Westminster Magistrates Court on Feb 4 Photo: Getty Images

The Hounslow trader accused of helping trigger the Flash Crash of 2010 sent 7.4 million 'trade modification' messages – sometimes seen as a sign of abusive trading – on a single day, according to prosecutors seeking to extradite him to the US.

Navinder Singh Sarao's trade modification messages on the CME market for E-mini futures sent on April 29, 2010 amounted to 42% of all such messages sent across the market, according to Mark Summers QC in opening arguments seeking to get Sarao sent to the US for trial.

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