
World Grain reports USDA's August crop report raised winter wheat and cut spring wheat, while corn and soybean output was lowered from July. Since mid-July, Russia's exit from the Black Sea grain deal and port attacks drove wheat futures up briefly before they fell about 20% in Kansas City, Minneapolis and Chicago.
Sharp wheat futures declines reflect fading geopolitical risk premium and ample supply, reducing wheat's feed cost advantage over corn over time.
After 80 past bearish geopolitics events, WHEAT moved a median -0.4% over 5 sessions (44% higher; middle half -1.4% to +1.9%), and -0.5% over 20.
After 72 past bullish geopolitics events, SOY moved a median +0.4% over 5 sessions (60% higher; middle half -1.0% to +2.5%), and -1.0% over 20.
After 323 past bullish geopolitics events, CORN moved a median +0.5% over 5 sessions (57% higher; middle half -1.5% to +2.9%), and +0.9% over 20.
After 16 past bearish geopolitics events, KWHEAT moved a median -3.0% over 5 sessions (13% higher; middle half -4.3% to -1.9%), and -0.5% 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.