Dollar ETF Tumbles as Greenback Hits Three-Year Low

PowerShares DB US Dollar Bullish Fund (NYSEArca: UUP) was down 0.5% in early U.S. trading Thursday as the dollar fell to a three-year low. The exchange traded fund (ETF), which follows the movement of the greenback against a basket of currencies, is down more than 6% so far this year on worries...