Volfbeyn accused Renaissance of asking him to devise methods to “defraud investors trading through the Portfolio System for Institutional Trading, or POSIT,” referring to a dark pool of liquidity—essentially an electronic market that matches buy and sell orders for stocks out of the public eye. Volfbeyn said he was instructed to create a code that would “reveal information that POSIT intended to keep confidential,” according to an article by Bloomberg, and that he refused to participate in the scheme, as well as others, because he believed they were against the law. The suit also hinted at a
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