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The March 2026 WASDE left US corn, soybean and wheat production, yield and ending stocks unchanged from February. World corn ending stocks rose 3.77 MMT to 292.75 MMT, above expectations, while Brazil corn output was raised to 132 MMT and Argentina corn and soybean estimates were cut.
Higher world corn stocks and larger Brazilian output are bearish for export prices. Smaller Argentine crops partly offset this, so the net price effect is limited.
iowafarmbureau.comAlex Robinson, Research Economist, Decision Innovation Solutions on behalf of Iowa Farm BureauMar 17, 2026After 770 past neutral report events, Corn moved a median +0.2% over 5 sessions (54% higher; middle half -1.1% to +1.6%), and +0.7% over 20.
After 563 past neutral report events, Soybeans moved a median -0.1% over 5 sessions (48% higher; middle half -1.7% to +1.6%), and -0.1% over 20.
After 406 past neutral report events, Wheat (SRW) moved a median -0.2% over 5 sessions (47% higher; middle half -1.6% to +1.5%), and +0.0% 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.
