
Corn prices have been slow to respond to Chinese purchases of US corn and to the derecho that hit Iowa. RaboResearch estimates the storm could cut national yield by 2-4% and leave ending stocks around 2.5 billion bushels.
Large US carry-in stocks limit the upside from Chinese buying and the derecho damage, so feed buyers should expect the supply cushion to keep corn prices contained.
After 770 past neutral report events, Corn moved a median +0.2% over 5 sessions (54% higher; middle half -1.1% to +1.6%), and +0.7% 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.