2008 Société Générale trading loss on January 28, 2008 with abuse of confidence and illegal access to computers. He was released from custody a short time after. The charges filed carry a maximum three-year prison term. On January 29, 2008 investigating judges Renaud van Ryumbecke and Francoise Desset had rejected prosecutor Jean-Claude Marin's bid to charge Kerviel with the more serious crime of "attempted fraud" and refuse bail. Société Générale characterizes Kerviel as a rogue trader and claims Kerviel worked these trades alone, and without its authorization. Kerviel, in turn, told investigators that such practices are widespread and that getting a profit makes the hierarchy
2012 JPMorgan Chase trading loss 2012 JPMorgan Chase trading loss In April and May 2012, large trading losses occurred at JPMorgan's Chief Investment Office, based on transactions booked through its London branch. The unit was run by Chief Investment Officer Ina Drew, who has since stepped down. A series of derivative transactions involving credit default swaps (CDS) were entered, reportedly as part of the bank's "hedging" strategy. Trader Bruno Iksil, nicknamed the "London Whale", accumulated outsized CDS positions in the market. An estimated trading loss of US$2 billion was announced, with the actual loss expected to be substantially larger. These events gave rise to a