
The Mexican and Chilean pesos rose 1.44% and 1.70% against the dollar on November 4 after Democrats won both chambers of Congress. Falling Treasury yields and expectations of tighter fiscal constraints weakened the dollar.
A firmer peso and weaker dollar reduce the cost of dollar-priced feed ingredients for Latin American buyers. Currency moves like this are a secondary factor for grain prices, so the impact is modest.
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.