Jérôme Kerviel bank a profit of US$2 billion as of 2007. Managers for Société Générale have described some of the means Kerviel employed to avoid the bank's internal controls and escape detection. Its Executive Chairman Daniel Bouton describes the pattern as like "a mutating virus" in which hundreds of thousands of trades were hidden behind offsetting faked hedge trades. Officials say Kerviel was careful to close the trades in just two or three days, just before the trades' timed controls would trigger notice from the bank's internal control system, and Kerviel would then shift those older positions to newly initiated trades. City
Rogue trader rules, and it has widely been said that employers turned a blind eye to transgressions due to the profits involved. One famous rogue trader is Nick Leeson, whose losses on unauthorized investments in index futures contracts were sufficient to bankrupt his employer Barings Bank in 1995. Through a combination of poor judgement on his part, increasingly large initial profits, lack of oversight by management, a naïve regulatory environment, and an unforeseen outside event, the Kobe earthquake, Leeson incurred a US$1.3 billion loss that bankrupted the centuries-old financial institution. The key factor determining the use of the term is lack of