Vietcombank sold the greenback at VND24,780, up 0.04% from the weekend.
The greenback rose by 0.24% to 25,220 at unofficial exchange points.
The State Bank of Vietnam (SBV)’s reference rate was reduced by 0.1% to VND24,177.
The dollar has increased against the dong by 1.47% since the beginning of the year.
Globally, the dollar held to tight ranges on Monday while the yen pared its safe-haven gains, as investors were undecided on the scale of a Federal Reserve rate cut expected later this month and looked to this week's U.S. inflation reading for more clues, Reuters reported.
Against a basket of currencies, the dollar edged up 0.04% to 101.24.
The yen surrendered some of its gains after having risen 2.73% last week as risk aversion gripped markets and in the wake of some volatility following the nonfarm payrolls report.
It was last 0.36% lower at 142.81 per dollar. The euro slipped 0.04% to $1.1081.