Dollar Snaps Four-Day Advance on Services Report; Won Tumbles

The dollar fell for the first time in five days, ending its longest rally in two months, after a report showed services unexpectedly declined in December.

The euro climbed from a one-month low against the dollar as industry data confirmed the region’s services output expanded for a fifth month before the European Central Bank discusses interest rates on Jan. 9. South Korea’s won tumbled on bets the central bank will cut borrowing costs. South Africa’s rand gained after Moody’s Investors Service said the country will retain its investment-grade credit rating.