USDA's Quarterly Grain Stocks report revised 2020 soybean production up 81 million bushels on higher harvested acres, lifting old-crop carryout to 256 million bushels. Corn production was cut 71 million bushels, and corn ending stocks were lowered to 1.24 billion bushels.
The larger soybean carryout is bearish for soybean prices, and the corn production cut partly offsets that pressure on corn.
After 788 past bearish report events, Soybeans moved a median -0.3% over 5 sessions (47% higher; middle half -2.0% to +1.5%), and -0.9% over 20.
After 1,040 past bullish report events, Corn moved a median +0.5% over 5 sessions (62% higher; middle half -0.9% to +2.0%), and +0.8% 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.