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Argentina temporarily suspended its export taxes on grains, a measure that lasted less than 72 hours after reaching a US$7 billion inflow target. Chicago corn futures closed sharply lower the prior week at about $4.22 per bushel.
The temporary end of retenciones makes Argentine grain more competitive in export markets, pressuring CBOT corn and soybean prices and reducing demand for US product.
stonex.comRaphael BulascoschiSep 29, 2025After 310 past bearish policy events, Corn moved a median +0.3% over 5 sessions (54% higher; middle half -1.4% to +1.9%), and +0.6% over 20.
After 369 past bearish policy events, Soybeans moved a median -0.2% over 5 sessions (46% higher; middle half -1.7% to +1.8%), and +0.8% over 20.
After 223 past bearish policy events, Soybean Meal moved a median -0.3% over 5 sessions (45% higher; middle half -2.2% to +1.2%), and -0.6% 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.
Argentina's brief suspension of grain export taxes (dated 2025-09-29) points to added competing export supply and bearish sentiment, which plausibly contributed to the drop on 9/29, though the tax lasted under 72 hours.
