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 the second quarter and subsequent recalculation of a loss of $1.4 billion for the first quarter. A spokesman for the firm claimed that projected total losses could be more than $7 billion. The disclosure, which resulted in headlines in the media, did not disclose the exact nature of the trading involved, which remained in progress as of May 16, 2012 as JPMorgan's losses mounted and other traders sought to profit or avoid losses resulting from JPMorgan's positions. As of June 28, 2012, JPMorgan's positions were continuing to produce losses which could total as much as $9 billion under worst-case scenarios.