
Mexico's formal USMCA submission in the GM corn dispute was published on March 5, defending its decree restricting GM corn for human consumption and glyphosate. Mexico argues the policies affect only about 1% of US corn exports, mostly white corn for food, with feed exports largely unaffected.
Mexico says the restrictions touch only a small share of US corn exports, so the price impact on feed corn is likely limited, though the panel outcome remains a risk.
After 480 past neutral trade events, CORN moved a median +0.2% over 5 sessions (54% higher; middle half -1.1% to +1.6%), and +0.7% 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.