
USDA's quarterly stocks report showed US soybean stocks on September 1 at 438 million bushels, above expectations. Corn stocks were 2.140 billion bushels and all-wheat stocks 2.379 billion, both above trade estimates.
Slower fourth-quarter demand, partly due to China trade tensions, drove the surplus, and the 2017 soybean and corn crops were revised.
Larger-than-expected beginning stocks for 2018/19 signal ample supplies and weaker demand, which is bearish for corn, soybeans and wheat prices.
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 1,102 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.
After 1,006 past bearish report events, Wheat (SRW) moved a median +0.0% over 5 sessions (50% higher; middle half -1.6% 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.