The Federal Reserve kept rates and its asset purchase program unchanged, signaling it was still some way from withdrawing accommodation. Weaker-than-expected U.S. GDP data added to dollar weakness, and USD/MXN fell 0.3% to 19.85 at the New York close.
A weaker dollar and firmer peso lower the cost of dollar-priced feed imports into Mexico, a major buyer of US corn and soymeal. Currency moves like this are a minor offset to grain price direction.
Not enough comparable past events yet for a historical read.
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.