The greenback rose 0.34% to around VND26,200 at unofficial exchange points. Vietcombank kept its rate unchanged at VND26,460.
The State Bank of Vietnam hiked its reference rate by 0.1% to VND25,405.
Globally, currency markets paused for breath on Wednesday as pressure on the Japanese yen eased following recent bouts of intervention and a forceful show of U.S. support, while the dollar held near six-week lows on fresh optimism over the Middle East, Reuters reported.
The U.S. dollar index, which tracks the currency against six major peers, was little changed at 99.85, struggling to find direction after hitting a six-week low on Monday.
The euro was flat at $1.1533, just short of its recent six-week high at $1.1559. The sterling was steady at $1.3453. The yen was slightly firmer at 157.61 per U.S. dollar, after easing about 0.4% in the previous session from Monday’s high of 155.20.
Muted market moves suggest investors “remain sceptical about how long the effects of the recent interventions will last,” according to Vincent Chung, co-portfolio manager for diversified income bond strategy at T. Rowe Price.
“The market’s base case appears to be that intervention may slow the pace of further yen depreciation, rather than lead to a lasting reversal,” he said.