The downfall of amaranth Advisors, the hedge fund that lost $6 billion in a single week by betting on natural gas, was a special case. There was no domino effect taking down energy traders generally, no meltdown of an industry. But if you want to fret over the next financial catastrophes, turn your gaze away from energy futures and focus on something far more obscure: credit default swaps. Hedge funds are neck-deep in these derivatives, and if something goes wrong, the pain will be widespread.
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