In 2007, two
Credit Suisse traders pleaded guilty to mismarking their
securities positions to overvalue them by $3 billion, avoid losses, and increase their year-end
bonuses. Federal prosecutors and the
Securities and Exchange Commission charged that the traders' goal was to obtain lavish year-end bonuses that the mismarking would lead to. The traders engaged in what
The New York Times called "a brazen scheme to artificially increase the price of
bonds on their books to create fictitious profits." The traders secured sham "independent" marks for illiquid securities that they held position in from friends who worked at other financial firms. Credit Suisse took a $2.65 billion write-down after discovering their traders' mismarking. The bank said it investigated the accusations, and took remedial action. In 2010, a
Merrill Lynch trader in London who mispriced positions he had on behalf of the bank by $100 million to cover up his losses was banned by the United Kingdom's
Financial Services Authority (FSA) from working in the securities industry in the UK for at least five years. Also in 2010, a trader at
Toronto Dominion Bank in the UK was fined £750,000 ($1.16 million) by the FSA for intentionally mismarking his trading positions. In 2016,
Citigroup fired a trader for mismarking his portfolio. Also in 2016, a trader at a company authorized by the
Dubai Financial Services Authority (DFSA) was banned for six years from performing any functions in connection with the provision of financial services in the
Dubai International Financial Centre after he mismarked his trading book. In 2019, SEC announced settled charges against a former Citigroup Global Markets Inc. (CGMI) trader for mismarking a book of illiquid credit derivatives while sustaining losses from unauthorized trading in U.S. Treasury securities (USTs). In 2022, SEC charged James Velissaris, former Chief Investment Officer and founder of Infinity Q Capital Management, with overvaluing assets by more than $1 billion while pocketing tens of millions of dollars in fees. ==Regulatory action==