A Gallery of Rogues: 4 Traders Who Lost Billions

Zurich-based banking giant UBS announced in September that a rogue trader caused massive losses that ultimately totaled $2.3 billion. London police arrested 31-year-old Adoboli, a trader at the bank's exchange-traded fund desk. UBS CEO Oswald Grübel resig

Kweku Adoboli, UBS Zurich-based banking giant UBS announced in September that a rogue trader caused massive losses that ultimately totaled $2.3 billion. London police arrested 31-year-old Adoboli, a trader at the bank's exchange-traded fund desk. UBS CEO Oswald Grübel resig Zurich-based banking giant UBS announced in September that a rogue trader caused massive losses that ultimately totaled $2.3 billion. London police arrested 31-year-old Adoboli, a trader at the bank's exchange-traded fund desk. UBS CEO Oswald Grübel resigned later that month. Adoboli is due to enter a plea later this month. He faces up to 10 years in prison, based on sentencing guidelines. Getty Images

A currency trader at Allfirst Financial, Rusnak lost $691 billion, mostly by betting big on the Japanese yen, increasing his positions, and hiding his losses over five years. Rusnak pleaded guilty in 2002 and served nearly six years in prison. Allfirst, w

John Rusnak, Allfirst Financial A currency trader at Allfirst Financial, Rusnak lost $691 billion, mostly by betting big on the Japanese yen, increasing his positions, and hiding his losses over five years. Rusnak pleaded guilty in 2002 and served nearly six years in prison. Allfirst, w A currency trader at Allfirst Financial, Rusnak lost $691 billion, mostly by betting big on the Japanese yen, increasing his positions, and hiding his losses over five years. Rusnak pleaded guilty in 2002 and served nearly six years in prison. Allfirst, which had been owned by Allied Irish Banks, was sold to the M&T Bank Corporation of Buffalo after the scandal broke. Getty Images

In the best known of all rogue trading scandals, Leeson in 1995 brought down Barings, Britain's oldest investment bank, by racking up trading losses of $1.4 billion. He was sentenced to six-and-a-half years in prison, but was released in 1999 after being

Nick Leeson, Barings Bank In the best known of all rogue trading scandals, Leeson in 1995 brought down Barings, Britain's oldest investment bank, by racking up trading losses of $1.4 billion. He was sentenced to six-and-a-half years in prison, but was released in 1999 after being In the best known of all rogue trading scandals, Leeson in 1995 brought down Barings, Britain's oldest investment bank, by racking up trading losses of $1.4 billion. He was sentenced to six-and-a-half years in prison, but was released in 1999 after being diagnosed with colon cancer. Leeson survived his battle with the disaease and has since written two books about the scandal and its fallout, including Rogue Trader, which was turned into a movie starring Ewan McGregor. Granada Film Productions