Dollar slips against dong

Vietcombank sold the currency at VND26,170, down 0.11% from Thursday. On the black market, the greenback gained 0.08% to around VND26,380.

The State Bank of Vietnam hiked its reference rate by 0.06% to VND24,978.

Globally, the U.S. dollar softened on Friday, heading for its fifth-straight monthly decline as traders braced for further bouts of uncertainty around trade and fiscal health, while investors awaited a pivotal inflation report later in the day, Reuters reported.

The dollar index, which tracks the U.S. unit against a basket of six other currencies, was muted on Friday. The index was set for a decline of 0.4% in May, on course for its fifth month in the red.

The euro was slightly firmer at $1.1378, while the Swiss franc was also stronger at 0.8216 per dollar.

The Japanese yen firmed 0.3% to 143.73 per dollar after data showed underlying inflation in Tokyo hit a more than two-year high in May.

The greenback had a choppy week, ending lower in the previous session after a federal court temporarily reinstated the most sweeping of President Donald Trump's tariffs, a day after a separate trade court had ordered an immediate block on tariffs.

"The (court) decision marks the beginning of a new source of uncertainty rather than the total closure of another," said Kyle Rodda, senior financial market analyst at Capital.com, noting the mood in the markets was cautious.