USDA reported that 55% of U.S. corn was rated good-to-excellent, down from 58% and below expectations of 58%. Soybean condition was also 55% good-to-excellent.
Corn futures rebounded from four-month lows, and soybeans and wheat rose in sympathy. Wheat also gained on dryness concerns in Australia and Argentina.
A larger-than-expected drop in crop ratings signals lower yield potential ahead of USDA's supply report, supporting feed grain and soymeal prices.
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.
After 747 past bullish report events, SOY moved a median +0.3% over 5 sessions (54% higher; middle half -1.4% to +2.1%), and +0.8% over 20.
After 769 past bullish report events, WHEAT moved a median +0.2% over 5 sessions (53% higher; middle half -1.4% to +2.0%), and +0.2% 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.
USDA's crop condition ratings on Sept 10 came in below expectations for corn and soybeans, tightening perceived supply and supporting prices into the move.