So far this year, the State Bank of Vietnam has bought 11 billion USD in foreign exchange, increasing the country's reserves to a record high of more than 40 billion USD. This will allow the SBV to stabilise foreign exchange rates in the 4th quarter, when the demand for foreign currency will be very high. Although the State Bank of Vietnam changes the exchange rates daily, the rates at commercial banks have not changed much. In today's trading session, the reference exchange rate for the Vietnamese dong against the US dollar was announced at 21.964 VND per USD.