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Chicago corn futures closed lower Monday, with the December contract down 13.5 cents to $4.47 per bushel. The decline followed a sharp drop in crude oil after the US suspended airstrikes on Iran, which raised hopes for diplomacy and eased Strait of Hormuz shipping concerns.
Roughly 40% of US corn goes to ethanol, so lower crude reduces the biofuel incentive for corn use and weighs on prices. Easing Iran tensions could keep energy and grain prices under pressure.
vgmarkets.comJul 28, 2026After 87 past bearish geopolitics events, Corn moved a median +0.1% over 5 sessions (51% higher; middle half -1.5% to +2.1%), and +0.3% over 20.
After 53 past bearish geopolitics events, Soybeans moved a median -0.3% over 5 sessions (47% higher; middle half -1.9% to +1.2%), and +1.0% over 20.
After 80 past bearish geopolitics events, Wheat (SRW) moved a median -0.4% over 5 sessions (44% higher; middle half -1.4% to +1.9%), and -0.5% over 20.
After 250 past bearish geopolitics events, Crude Oil (Brent) moved a median -3.1% over 5 sessions (36% higher; middle half -7.9% to +1.6%), and -5.5% 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.
Describes the Monday corn decline as profit-taking after the oil selloff, but the event is dated the 28th and its price level looks inconsistent with other reports.
Crude oil selloff after US suspended Iran strikes reduced biofuel/energy support and triggered profit-taking across grains and oilseeds.
