Hurricane-force winds damage ~14 million acres of crops and grain storage across Iowa and Illinois.
After 2,467 past weather events, CORN moved a median +0.1% over 5 sessions (51% higher; middle half -1.5% to +1.7%), and +0.6% over 20.
After 1,964 past weather events, SOY moved a median +0.1% over 5 sessions (51% higher; middle half -1.7% to +1.8%), and +0.3% 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.
The derecho damaged Iowa and Illinois corn and grain storage, which tightens supply and could lift prices as the full crop loss became clearer, though the event happened a week before the move.