Traders speculating on the Chicago Mercantile Exchange piled on more than twice as many bets against the yen as of March 13, government data showed Friday. They held a net $6.4 billion in wagers that the yen will depreciate against the dollar, or 42,380 contracts, as the Bank of Japan's insistence that it will fight a strong yen continues to reverberate. Speculators held onto a net $17.9 billion bet that the dollar will rise, the same as last week, according to the Commodity Futures Trading Commission's weekly report on the commitments of traders. Hedge funds' movements in the currency markets are widely thought to ... (full story)