JPMorgan Chase & Co. (JPM) trader Bruno Iksil’s outsized bets in credit derivatives are drawing attention to a little-known division that invests the company’s reserves and fueling a debate over whether banks are taking excessive risks with federally insured and subsidized money. Iksil’s influence in the market has spurred some counterparts to dub him Voldemort, after the Harry Potter villain. He works in London in the bank’s chief investment office, which has assembled traders from across Wall Street to its staff of 400 who help oversee $350 billion in investments. While the firm describes the unit’s main task as ... (full story)