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
Commodity Futures Trading Commission unlimited positions. These exemptions came to light only after the 2008 financial crisis had unfolded and Congress requested information on market participants. A trader or bank granted an exemption as a bona-fide hedger can affect the price of a commodity without being either its producer or consumer. In December 2007 during the subprime mortgage crisis, the CFTC began investigating transportation, storage and trading of U.S. crude oil for price manipulation, which included a probe of U.S. crude oil futures. By May 2008, when the price of crude oil futures showed a meteoric rise of 40% to a record $US 135