
US farmers sold stored corn, soybeans and wheat rapidly after prices climbed following the start of the Iran war. Growers also pre-sold unplanted 2026 crops, locking in modest profits to cover higher fertilizer, chemical and seed costs.
Heavy farmer selling adds near-term supply to the market and can cap rallies, while the war-driven price rise also reflects higher input costs.
After 683 past bearish trade events, Corn moved a median -0.2% over 5 sessions (47% higher; middle half -1.7% to +1.6%), and +0.3% over 20.
After 803 past bearish trade events, Soybeans moved a median +0.0% over 5 sessions (51% higher; middle half -1.7% to +1.7%), and +0.9% over 20.
After 375 past bearish trade events, Wheat (SRW) moved a median -0.2% over 5 sessions (47% higher; middle half -2.0% to +1.1%), and -0.1% 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.