Vietcombank sold the greenback at VND26,040, up 0.12% from Tuesday. The currency saw a 0.04% dip to VND26,120 on the black market.
The State Bank of Vietnam raised its reference rate by 0.03% to VND24,899.
Globally, the dollar clung to a small bounce on Wednesday, as investors took a breather from weeks of fairly fierce selling and markets stabilized to wait for progress on U.S. trade talks, Reuters reported.
The yen was steady at 142.85 per dollar. The U.S. dollar index, which poked above 100 overnight, hovered just shy of that level at 99.899 in early Asia trade.
The euro, which reached three-year highs last week, has eased from a peak of $1.1474 to trade at $1.1311 in the Asia morning. It is up more than 4.5% this month and was overdue a pullback and there has also been little sign of substantive progress toward any deal to avoid heavy U.S. tariffs.
Sterling, however, stood out and notched a six-month high at $1.3254. Britain had been spared the most punitive U.S. levies and overnight U.S. Vice President JD Vance said there was a good chance a trade deal could be struck.
The Swiss franc, the largest gainer amongst G10 currencies since Donald Trump's "Liberation Day" tariff announcement, was firmer on Wednesday morning at 0.8184 per dollar.
The Canadian dollar was firm at C$1.3948 per greenback and up 4% in April is one of starkest examples of how heavily investors have punished the dollar as trade policy has rattled confidence.