Jérôme Kerviel Jérôme Kerviel Jérôme Kerviel (; born 1977) is a French trader who was convicted in the 2008 Société Générale trading loss for breach of trust, forgery and unauthorized use of the bank's computers, resulting in losses valued at €4.9 billion. Société Générale characterizes Kerviel as a rogue trader and claims Kerviel worked these trades alone and without its authorization. These assertions have been met with skepticism by some of Kerviel's former colleagues and acquaintances, as well as by some members of the news media. Kerviel had told investigators that his trading behavior was widespread at the company and that making
2012 JPMorgan Chase trading loss number of investigations to examine the firm's risk management systems and internal controls. In February 2012, hedge fund insiders such as Boaz Weinstein of Saba Capital Management became aware that the market in credit default swaps was possibly being affected by aggressive trading activities. The source of the unusual activity turned out to be Bruno Iksil, a trader for JPMorgan Chase & Co. Market-moving trades by the bank's Chief Investment Office had first been uncovered in June 2011 by trade journal Creditflux, which reported on anomalies in CDX HY index tranche pricing dynamics caused by Iksil's trading activity. The same