And later at a few commercial banks reached the ceiling rate of 22,547 VND/USD, set by the State Bank of Vietnam. Buying and selling prices were at 22,510 and 22,547 VND/USD respectively. The hike was the result of the US Federal Reserve’s decision to hold a meeting at which it was likely to raise interest rates on the dollar. This is the first time the USD/VND ceiling has so rapidly reflected by commercial bank foreign currency rates.