Stock trader to comply with in their respective jurisdictions; or that tax free stock market operations are useful to boost economic growth. Beyond these costs are the opportunity costs of money and time, currency risk, financial risk, and Internet, data and news agency services and electricity consumption expenses—all of which must be accounted for. Jerome Kerviel (Société Générale) and Kweku Adoboli (UBS), two rogue traders, worked in the same type of position, the Delta One desk - a table where derivatives are traded, and not single stocks or bonds. These types of operations are relatively simple and often reserved for novice traders
2008 Société Générale trading loss the bank's total market capitalization. Bank officials claim that Kerviel tried to conceal the activity by creating losing trades intentionally so as to offset his early gains. According to the BBC, Kerviel generated €1.4 billion in hidden profits by the end of 2007. His employers say they uncovered unauthorized trading traced to Kerviel on January 19, 2008. The bank then closed out these positions over three days of trading beginning January 21, 2008, a period in which the market was experiencing a large drop in equity indices, and losses attributed are estimated at €4.9 billion. The bank claimed Kerviel "had