A federal judge on Wednesday dismissed a lawsuit in which investors accused the parent of the Chicago Board Options Exchange of letting anonymous traders rig Wall Street’s main gauge of future stock market volatility at their expense. U.S. District Judge Manish Shah in Chicago said investors in the proposed class action failed to show that Cboe Global Markets Inc intended to defraud them by allowing manipulation of options and futures tied to the VIX, known as the U.S. stock market’s “fear gauge.” “Though Cboe may have designed a process with features that made it vulnerable to manipulation,” the investors did not ... (full story)