The daily reference exchange rate for VND/USD was set at VND 22,258 per USD on March 9, up VND 12 from the day before.
With the current +/- 3 percent VND/USD trading band, the ceiling exchange rate is VND22,925 per USD and the floor rate is VND21,591 per USD.
The opening hour rates at commercial banks saw strong fluctuations.
Vietcombank listed its rates at VND22,790 (buying) and VND22,860 (selling) per USD, both up VND40 from March 8.
BIDV raised both its rates by VND25, to VND22,780 (buying) and VND 22,850 (selling) per USD.
Meanwhile, Techcombank cut both its rates by VND20, listing the buying rate at VND 22,740 and the selling rate at VND 22,840 per USD.