Unofficial exchange points sold the greenback 0.23% higher at VND25,880 (US$0.99). Vietcombank kept its rate unchanged at VND26,210.
Globally the dollar jumped against the yen on Friday after two policymakers at the Bank of Japan dissented from a widely expected decision to raise interest rates, raising doubt among traders about the likelihood of further hikes, Reuters reported.
The dollar pared gains after Japanese authorities conducted rate checks in the currency market, considered a preliminary step before intervention, the Nikkei newspaper reported.
The U.S. dollar was 0.5% higher at 156.725 yen, after rising as much as 1.3% to a two-week high of 158.05 yen. It was set for its largest weekly rally since October 2025.