The CME Group on Wednesday said it may review its stance on what caused the flash crash after the arrest of a futures trader who the Commodity Futures Trading Commission say contributed to the 2010 disturbance. "Following the Flash Crash on May 6, 2010, together with other regulators, we did a thorough analysis of all activity in our markets during the Flash Crash, and concluded - along with regulators - that the Flash Crash was not caused by the futures market. If new information has come to light, we look forward to reviewing it with the Commission. We fully support the CFTC's actions to prosecute those who attempt to engage in fraud or manipulation. We are prohibited by law from releasing information about any individual's trading behavior, including Mr. Sarao's, so we are unable to comment further at this time."
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