The daily reference exchange rate was set at 22,988 VND/USD on April 18, down 3 VND from the previous day.
With the current trading band of +/- 3 percent, the ceiling rate applied to commercial banks during the day is 23,678 VND/USD and the floor rate 22,298 VND/USD.
The opening hour rates at commercial banks continued to stay stable.
As of 8:15 am, both Vietcombank and BIDV listed the buying rate at 23,150 VND/USD and the selling rate at 23,250 VND/USD. The rates have been maintained for many days.
Techcombank also maintained the same rates as on April 17, at 23,130 VND per USD (buying) and 23,250 VND/USD (selling).
https://en.vietnamplus.vn/reference-exchange-rate-down-3-vnd-on-april-18/151199.vnp