How to lose $7 billion

Jerome Kerviel, the disgraced former Societe Generale trader, actually achieved something quite remarkable: "It's bloody difficult to lose that much money, that fast," said Nick Saunders, who heads institutional operations at London-based IG Markets. Kerviel reportedly lost his bank $7.2 billion in just eight trading days. It's more than any other rogue trader has ever lost in history.

See if you have what it takes to be the best of the market's worst. - By Stephen Gandel, Money Magazine senior writer

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