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
2012 JPMorgan Chase trading loss be responsible for what information was revealed, and information was withheld from the regulators. There had been a series violations of the Sarbanes–Oxley regulations requiring certain protections. On May 10, 2012, Dimon announced that there was a loss of at least $2 billion through "egregious mistakes" in trading. The Volcker Rule, part of the Dodd–Frank Wall Street Reform and Consumer Protection Act, bans high-risk trading inside commercial banking and lending institutions. The Volcker rule is sometimes referred to as "a modern Glass-Steagall firewall that separates core banking system from higher-risk, hedge fund-style proprietary trading". The rule's implementation had been repeatedly