The July 2021 WASDE summary lists higher U.S. corn production of 175 million bushels from expanded planted area, with yield unchanged at 179.5 bushels per acre. Corn exports were raised 50 million bushels while Brazil's exports were cut sharply, and ending stocks rose 75 million bushels.
Larger U.S. supplies and higher ending stocks are mildly bearish for corn and feed grain prices, partly offset by stronger export demand.
After 1,102 past bearish report events, Corn moved a median -0.2% over 5 sessions (47% higher; middle half -1.8% to +1.3%), and +0.0% 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.