Derivatives trader Nick Leeson grabbed the headlines in the mid-nineties for all the wrong reasons. The trader, having worked his way to the top at Barings Bank, took over as head of Singapore stock exchange in 1995. By this time, his speculative gambles had resulted in huge losses which he hid in a secret account. The same year also saw the markets plummeting thanks to the earthquake in Japan. Unable to hide the losses anymore, Leeson eventually disappeared from Singapore with losses amounting to $1.4 billion. Click here for more information.