Corn futures snap back as USDA trims 2025 yield estimate by 3.2%

Corn futures climbed 18 cents per bushel in the three trading sessions following the November USDA World Agricultural Supply and Demand Estimates report, as the agency trimmed its 2025 U.S. yield estimate to 174.6 bushels per acre — down 3.2% from its October projection and below the pre-report trade consensus of 176.2. December contracts settled at $4.38 on Friday, their highest close since mid-September.

The revision reflects a tighter harvest than the September planting-survey data implied. Early-season drought stress in the western Corn Belt cut into final kernel weight more than USDA’s August satellite imagery had indicated. The combined effect of lower yield and steady ethanol processing demand — refiners are running at 96% capacity utilization through Q4 — tightened the projected ending stocks figure to 1.738 billion bushels, down 214 million from October.

What the numbers mean at the elevator

Basis levels at country elevators across Iowa, Illinois, and Indiana narrowed 8–12 cents per bushel following the report, which reflects both the futures move and a modest uptick in processor bids. For operators still holding unpriced bushels, the combination of stronger futures and tighter basis is the most favorable window since early spring.

The practical question for most grain farmers is whether this is a durable rally or a one-week spike. The structural picture supports some durability: ending stocks at 1.738 billion bushels represent a stocks-to-use ratio of 11.9%, which historically has been associated with corn prices in the $4.20–$4.80 range. The market is not in panic-low-stocks territory, but it is also not in the comfortable 14%+ range that has characterized the past two years.

The November WASDE is typically the last major supply revision of the year. Whatever number USDA printed Friday is close to the number the market will trade against through February.

Export inspection data adds context. Weekly corn export inspections are running 14% ahead of the same period last year, driven by South American weather concerns and a slight weakening of the dollar against major trading currencies. If export pace holds through December, USDA will likely revise ending stocks lower again in January — which would further support prices.

Soybeans following the same logic

Soybean futures responded to the corn rally but for a separate fundamental reason. The November WASDE also trimmed the soybean yield estimate by 1.1 bushels per acre, to 51.2, tightening ending stocks to 420 million bushels. That is a stocks-to-use ratio of 9.8% — tighter than corn and historically associated with a more volatile price environment.

January soybean futures gained 24 cents per bushel on the week to settle at $10.12. The soybean-corn price ratio — which determines the relative profitability of planting each crop next spring — moved to 2.31, slightly above the long-run average of 2.4. For operators making early 2026 planting decisions, the ratio still marginally favors corn across most of the Corn Belt, though the gap is narrow enough that input cost and rotation considerations may dominate the decision for many operations.

Positioning for the rest of the harvest year

Merchandisers at several major elevators contacted by Farmer.news this week said they are seeing more farmer selling interest at current levels than they saw at any point in October, when futures were $4.12–$4.20. That incremental selling pressure is one reason the rally has so far stalled below $4.50 on December contracts.

Operators who have not yet priced 2026 new-crop should note that December 2026 contracts are trading at $4.54, a modest carry that reflects current storage economics rather than a bullish price signal. Locking in a portion of new-crop production at $4.50+ provides a meaningful margin cushion against input cost at current fertilizer prices — anhydrous is averaging $412 per ton in the Corn Belt this month, roughly 12% below year-ago levels.

The basis for on-farm stored corn depends heavily on local elevator demand and rail availability. Operators in areas with active ethanol plant bids should check whether local basis has moved to reflect the futures rally, or whether their elevator is widening basis to protect its own merchandising margin. Those two outcomes require different selling strategies.

What to watch through year-end

USDA releases its next WASDE on December 10. The December report rarely produces a surprise on corn yield — harvest is essentially complete — but it will update demand estimates for ethanol, exports, and feed. Any upward revision to ethanol demand would further tighten the stocks picture and support prices. A strong December export sales number in the weekly data, which USDA releases every Thursday, would be a forward indicator worth tracking between reports.

South American weather is the other variable with market-moving potential. Brazil’s first corn crop is in the ground and forecasts show drier-than-normal conditions in Mato Grosso through mid-December. If those forecasts verify, expect the soybean market to move first and pull corn with it. If Argentina follows with a second dry signal, the January USDA report could generate a significant production cut for the Southern Hemisphere — tightening global supplies and extending the domestic price rally further into winter.