The group of banks fined for the latest investigation into manipulation of the foreign exchange markets did not just lack scruples - they also lacked imagination. Traders from six banks - Barclays, RBS, Citigroup, JP Morgan, MUFG and UBS (although the Swiss bank wasn't fined) - colluded in Bloomberg chatrooms with names such as "The Essex Express 'n' the Jimmy". "Three Way Banana Split", and "Semi Grumpy Old Men".
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