The 7th U.S. Circuit Court of Appeals said in a ruling Wednesday that the judge who sentenced Yihao "Ben" Pu erred in finding that Pu intended to cause $12.7 million in losses for Citadel and the second firm. The evidence only showed that Pu used Citadel's information to trade in his own brokerage account and lost about $40,000 -- http://www.chicagotribune.com/business/ct-citadel-sentence-va...