Vietcombank sold the dollar at VND23,740 Monday, down 0.02% from Sunday.
Eximbank and Techcombank sold the greenback 0.04% lower at VND23,720, and VND23,745, respectively.
The USD/VND exchange rate has increased by 0.04% since the beginning of the year.
The State Bank of Vietnam (SBV)’s reference rate is at VND23,628, up 0.01%.
The dollar remained stable at VND23,680 on the black market.
The dollar hovered near a five-week high against major peers on Monday on rising bets for prolonged Federal Reserve policy tightening ahead of a crucial consumer price report the following day, according to Reuters.
The dollar index - which measures the greenback against six counterparts including the yen, euro and sterling - added 0.068% to 103.65, keeping close to last Tuesday's high of 103.96, the strongest level since January 6.