
Chinese government data released March 15 showed the hog herd was 16.6% smaller than a year earlier in February, with the sow herd down 19.1%. USDA says China has reported 115 African swine fever outbreaks and roughly 1 million culled animals, and expects the total swine inventory to fall 13% by end-2019.
A shrinking hog herd cuts feed demand for corn and soymeal, which is bearish for those feeds, while tighter pork supply lifts hog prices and pushes China toward more imports.
After 175 past bearish disease events, Corn moved a median +0.0% over 5 sessions (51% higher; middle half -1.7% to +1.5%), and +0.6% over 20.
After 167 past bearish disease events, Soybean Meal moved a median -0.6% over 5 sessions (40% higher; middle half -1.8% to +1.4%), and -0.8% over 20.
After 177 past bullish disease events, Lean Hogs moved a median +0.2% over 5 sessions (52% higher; middle half -1.8% to +2.7%), and +0.9% 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.