Against the yen, the dollar traded at 109.08 yen, down slightly on the day but still not far from its October high of 109.285.
The Swiss franc changed hands at 0.9925 to the dollar following its 0.5% fall the previous day, while gold tumbled 1.73% on Tuesday and last stood at $1,485.8 per ounce, near the lower end of its trading range over the past month.
The euro stood at $1.1073, having dropped 0.49% on Tuesday and was not far from a near three-week low of $1.10635 hit in US trade on Tuesday.
The positive mood spilled over to the risk-sensitive Australian dollar, which changed hands at $0.6894. It was little changed on the day but has maintained gains of 3.4% since hitting a 10-1/2-year low on Oct. 2.
The yuan continued to rally on rising optimism for a trade truce between Washington and Beijing.
The offshore yuan ticked up 0.1% to 6.9948 per dollar after having risen to a three-month high of 6.9867 to the dollar on Tuesday.
The currency has gained 2.9% from its record low in the offshore trade marked in early September.
Hopes that the Trump administration could roll back some of the tariffs it imposed on goods from China as part of a "phase one" US-China trade deal boosted risk sentiment in financial markets.
A survey on the vast US service sector published on Tuesday showed that business sentiment had improved in October from a three-year low in September.
The ISM non-manufacturing sector index rose to 54.7 from 52.6 in September, beating market expectations.
The rebound is a welcome sign for dollar bulls as a fall in the index would have suggested that malaise in trade war-hit manufacturers was infecting the service sector, too.