Vietcombank sold the greenback 0.04% lower at VND26,250. On the black market the dollar was steady at VND26,250.
Globally the dollar remained on shaky ground on Thursday, as uncertainty over U.S. economic policies and geopolitical moves were only partially offset by supportive comments from the White House and European officials following a rout in the currency, Reuters reported.
Against a basket of currencies, the dollar was at 96.24, languishing near Tuesday's four-year low of 95.566.
The Australian dollar, which has drawn additional support from bets of a rate hike at home as soon as next week, scaled a three-year peak of $0.70495.