With the current trading band of +/- 3 percent, the ceiling rate applied to commercial banks for the day is 23,467 VND/USD and the floor rate is 22,103 VND/USD.
The transaction office of the State Bank of Vietnam also maintained both rates at the same level as on December 20 at 22,700 VND/USD (buying) and 23,419 VND/USD (selling).
The opening hour rates listed at commercial banks saw strong reductions compared to December 20.
Vietcombank cut VND30 from both rates, listing the buying rate at 23,235 VND/USD and the selling rate at 23,325 VND/USD.
Both rates at Techcombank also dropped by VND 30 to 23,215 VND/USD (buying) and 23,325 VND/USD (selling).
The rates listed by BIDV went down by VND35 to 23,235 VND/USD (buying) and 23,325 VND/USD (selling).
This week (December 17-21), the daily reference exchange rate rose on the first two days then turned around to drop on Wednesday and stayed stable towards the end of the week. By the end of the week, the daily reference exchange rate gained a total VND2 .
The rates at commercial banks followed the same pattern, going up on the first two days of the week and then dropping on the remaining days.