
Mexico is moving to add a constitutional amendment banning genetically modified corn seeds. The amendment follows the December defeat of a related effort, after a trade dispute panel ruled that the 2023 decree banning GM corn in dough, tortillas, and animal feed violated USMCA.
A constitutional ban on GM corn seeds would threaten a major outlet for US corn exports to Mexico, which is bearish for US corn prices and feed demand.
After 310 past bearish policy events, Corn moved a median +0.3% over 5 sessions (54% higher; middle half -1.4% to +1.9%), and +0.6% over 20.
Not enough comparable past events yet for a historical read.
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.