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
Day trader Day trader A day trader is a trader who adheres to a trading style called day trading. This involves buying and subsequently selling financial instruments (e.g. stocks, options, futures, derivatives, currencies) within the same trading day, such that all positions will usually be closed before the market close of the trading day. Depending on one's trading strategy, trades may range from several to hundreds of orders a day. There are two types of day traders: institutional and retail. Both institutional and retail day traders are described as speculators, as opposed to investors; speculation is considered negatively as personal behavior and