Highlights

  • December corn ended Wednesday at $4.48 a bushel, down 1 cent, after reaching $4.5075 earlier in the session.
  • USDA cut its corn Yield estimate to 179.6 bushels per acre from 181.2, below the trade average of 180.5.
  • Ending stocks dropped to 1.758 billion bushels, below the trade average of 1.826 billion and October's 1.849 billion.
  • Nutrien raised 2026 nitrogen sales Volume guidance to 9.3-9.7 million tonnes while lowering its retail EBITDA guidance.

Corn's post-report rally cooled on Wednesday, but the numbers behind it have not changed. December corn finished at $4.48 a bushel on 11 November, down 1 cent, after touching $4.5075 in an inside session. Tuesday had brought the sharpest move in weeks, with corn up more than 3% after USDA cut its 2026 crop estimate by more than traders expected. For ADM (NYSE:ADM) and Nutrien (TSX:NTR), a smaller crop cuts in different directions.

A Rally From a Low Base

Before the report, December corn had fallen to its lowest level since 30 June and was heading for a sixth consecutive lower weekly close, having lost more than $1 a bushel from its highs.

What USDA Changed

The November estimates, published on schedule on 10 November, lowered the national corn yield to 179.6 bushels per acre from 181.2 in October, below the trade average of 180.5. Production was cut by 141 million bushels to 15.893 billion, from 96.8 million planted and 88.5 million harvested acres.

Demand estimates were trimmed too. Exports fell to 3.275 billion bushels from 3.3 billion, feed and residual use to 5.975 billion, while ethanol use stayed at 5.65 billion. Because Supply fell by more than demand, ending stocks dropped to 1.758 billion bushels, below the trade average of 1.826 billion and October's 1.849 billion.

Globally, the picture is less tight. World ending stocks stand at 281.94 million tonnes, Brazil's 2025/26 crop at 144.5 million and Argentina's at 64 million. If Black Sea trade disruption continues, some importers could turn to US supplies, though no shift is confirmed.

Why the Rally Stalled

Wednesday's dip was attributed to profit taking and technical selling, with no real signs of corn Demand from China despite market talk of Chinese buying. A firm dollar after a hotter-than-expected Inflation reading and hawkish Fed comments also weighed, since a stronger dollar makes US grain dearer overseas. These are commentators' explanations, not proven causes.

Export demand remains the main question. Before the report, US export commitments were running more than 30% behind last year, which is why a cut to the export estimate was widely expected. Harvest progress in the US and planting in South America are also being watched closely.

Companies With Material Exposure

ADM buys, stores, ships and processes corn. Its Carbohydrate Solutions segment, which includes corn wet and dry milling, earned $470 million in third-quarter operating profit, up 40%, of which $146 million came from its Vantage ethanol unit. Higher corn costs can reduce a processor's margins unless product prices rise too, while a smaller crop can mean lower handling volumes but more price Volatility to trade in Ag Services. ADM now expects 2026 adjusted Earnings of about $5.50-5.80 a share.

Nutrien is a Canadian fertiliser producer and farm retailer whose nitrogen products are heavily used on corn. It lowered its retail EBITDA guidance and said tightening global fundamentals are "expected to support grower Economics in 2027". Better farm incomes could support fertiliser demand, but its results also depend on gas costs, potash markets and retail margins.

Green Plains uses corn as feedstock for its eight operating ethanol plants, so higher corn costs reduce its crush Margin unless ethanol prices move in step.

What Could Move Prices Next

Prices could rise if final yield estimates fall again, exports pick up or China becomes a buyer. They could fall if South American planting goes well, the dollar stays firm or US harvest results beat the latest estimate. The January Crop Production report usually gives the final word on yield, and Brazil's second-crop corn is another variable.

Friday brings weekly export sales alongside an updated Brazilian crop outlook, Thursday brings the EIA's delayed ethanol data, and Friday's CFTC data will reveal fund positioning around the report. The next USDA estimates are due on 10 December.