The euro, the pound and a clutch of trade-sensitive currencies rallied as the dollar slid to a six-month low on Tuesday, as investor confidence in global growth prospects and the Phase 1 U.S.-China trade deal spurred a risk-on move.
U.S. President Donald Trump said on Tuesday that the first phase of an American trade deal with China would be signed on Jan. 15 at the White House.
The dollar index was down 0.36 percent to 96.388, its fourth consecutive session in the red and its weakest level since July 1. The Phase 1 trade agreement, which was reached earlier in December, has reduced demand for the safe-haven currency, pulling the dollar down 1.92 percent in the last month.