Grain prices climb on U.S. yield doubts and Ukraine war fears

Chicago's grain market experienced a week of gains, with corn hitting its highest value in three months and wheat and soybeans nearing one-month highs. Despite a slight dip on Thursday, soybeans still registered a weekly increase.

Analysts attribute these shifts to uncertainty surrounding U.S. crop yields, the escalating Russia-Ukraine war affecting port infrastructure, and new soybean acquisitions by China. Luciana Bilbao, a grain analyst at Gestor Max, explained that while both wheat and corn saw gains, the underlying risks differ. The market is factoring in various concerns, making it crucial to distinguish the specific drivers for each commodity.

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Cereals have regained ground in Chicago, but it would be a mistake to read the rise in wheat and corn as a single movement. The day was positive for both, although the market is incorporating risks of a different nature.

Concerns over U.S. corn production have intensified following initial results from the Pro Farmer Crop Tour. This annual survey, which assesses crop yields across key U.S. agricultural regions, indicated lower average yields in Illinois compared to last year and official projections. The reported average yield of 115.6 quintals per hectare fell short of the previous year's 125.3 quintals and the USDA's 2026/27 projection of 133.1 quintals.

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The most recent data from the Pro Farmer tour pointed to a reduction compared to the previous campaign's performance and did not reach current official projections.

Eugenio Irazuegui of Zeni noted that the Pro Farmer tour data suggests a reduction from the previous campaign and falls below current official estimates. This data, coupled with the USDA's downward revision of U.S. ending stocks and lower projected global reserves, tightens the overall supply picture. Bilbao emphasized that any data challenging expected yields necessitates a recalculation of supply, highlighting that the market balance indicates less surplus than production figures alone might suggest.

In the wheat market, the primary concern centers on the Black Sea region. Export difficulties and a slower pace of shipments from Ukraine have raised questions about the volume of grain that will reach the global market. This situation adds another layer of risk to the grain trade, influencing prices and availability.

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Any data that calls into question the expected yields forces a recalculation of supply. The balance shows less slack than observing production alone would suggest.