2008 Société Générale trading loss taken massive fraudulent directional positions in 2007 and 2008 far beyond his limited authority" and that the trades involved European stock index futures. Though bank officials say Kerviel apparently worked alone, skeptics question how unauthorized trading of this magnitude could go unnoticed. Kerviel's unassuming background and position have heightened the skepticism that he worked alone. Some analysts suggest that unauthorized trading of this scale may have gone unnoticed initially due to the high volume in low-risk trades normally conducted by his department. The bank said that whenever the fake trades were questioned, Kerviel would describe it as a mistake then
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