US dollar retreats for biggest weekly loss since JanuaryReuters, NEW YORKThe US dollar on Friday slid from a two-and-a-half-month high versus the yen, for its largest weekly loss since mid-January against a basket of six major currencies, as traders stepped back to gauge the path for Federal Reserve policy. The index slid 0.65 percent for the week, its biggest percentage fall since the week of Jan. 15. “Next week’s job opening and nonfarm payrolls reports could generate a lift in yields and the dollar,” he said. For the week, the dollar was down 0.44 percent versus the yen, its worst weekly showing since mid-January. The New Taiwan dollar on Friday gained against the US dollar, adding NT$0.003 to close at NT$30.627, down 0.48 percent from NT$30.480 a week earlier.