
The State Bank of Vietnam's central rate was 25,192 VND per USD on September 29, down 2 dong from the previous day, and has risen about 3.4% since the start of the year. Commercial bank rates also eased slightly, while the black-market rate was about 200 dong higher.
The US dollar index has fallen roughly 10% over the past eight months.
The dong's year-to-date weakening keeps import costs elevated for Vietnamese feed makers while the dollar index declines. This is background currency news with little direct grain price impact.
After 1,637 past bearish macro events, US Dollar (Broad) moved a median -0.2% over 5 sessions (39% higher; middle half -0.6% to +0.3%), and -0.2% over 20.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.