StoneX Lifts Corn Yield to 183.1 BPA Ahead of USDA's November Reports

StoneX raised its U.S. average corn yield estimate to 183.1 bushels per acre this week, a full bushel above its prior forecast and 1.9 bpa above USDA's 181.2 bpa number, setting the stage for a high-stakes Crop Production and Supply and Demand report next Tuesday.

The firm also lifted its soybean yield estimate to 55 bpa versus USDA's 53.1 bpa. Markets have trended mostly downward in recent weeks, and the November reports will likely set direction through year-end.

Bevan Everett, risk management consultant at StoneX Financial, said the firm's customer survey — heavy on commercial elevators and thousands of data points — showed the western Corn Belt weathered weather problems better than expected. "There is always a gap between expectations and reality, and based on the numbers I had cross my desk, the crop was much improved over what was reported in October," Everett said. Over 33 years, the StoneX survey has averaged a 1.4 bpa error on corn and 0.31 bpa on soybeans versus USDA's November figures. "We are always aiming at USDA's January figures, so November is just a rest point along the way."

Who expects lower yields?

Not everyone buys the bigger crop. Treefera forecasts USDA will trim the national corn yield to 180.3 bpa, with Iowa at 210 bpa versus USDA's 219. "Our model sees good conditions in Iowa this year but not enough to support a jump of that size," said Gabrielle Bourret-Sicotte, head of customer solutions. About a third of Iowa's crop remained unharvested on Nov. 1.

Treefera sees a larger soybean revision: 51.8 bpa nationally versus USDA's 53.1, producing roughly 4.42 billion bushels against USDA's 4.56 billion, with the gap concentrated in Illinois, Iowa, Ohio, Indiana and Arkansas. Northwest Iowa reports, though, show yields matching 2025's record levels.

Andy Wold, owner of Producers Hedge, questions the corn increase outright. Growers in central and northern Illinois report 10% to 15% yield reductions from last year, he said, with similar losses in parts of Iowa and Nebraska. "This variability is not bullish yield in this trader's opinion." His advice: watch strengthening basis, use market weakness for re-ownership, and move late-fall and winter bushels on strong basis.

John Zanker, senior analyst at Farmer's Keeper, said trade chatter points to lower corn yields in Nebraska, Iowa, Indiana and Illinois, with possible jumps in South Dakota and Minnesota. He hopes USDA reverts to September's 178.5 bpa mark, which could fuel a 30- to 40-cent futures rebound. He's heard next-to-no chatter that soybean yields fall short of 53.1 bpa.

What does this change for producers?

Matt Wiegand of FuturesOne notes fresh contract lows in corn, soybeans and wheat almost daily, while export sales hold a solid pace led by soybeans. His short-term playbook: reward basis plays for bushels in town, re-establish ownership via calls, use back-month carry for bin sales, and cover fuel needs as prices fade toward seasonal winter lows.

Jamie Gieseke, principal at Paradigm Futures, says post-election political gridlock could weaken the dollar — a tailwind for corn and wheat exports. With futures depressed, she recommends capturing attractive basis without pricing futures; if basis stays weak, FSA Marketing Assistance Loans can provide cash flow without forcing a sale.

Mike Zuzolo of Global Commodity Analytics flagged the USDA attaché in Ukraine cutting the 2026-27 corn export forecast from 22 million metric tons to 10.2 MMT — a cut of more than half. He doubts a Russia-Ukraine agreement on the Grain Corridor materializes and will watch WASDE for official changes, plus potential reductions in Russian grain exports.

How do growers handle 2027 input costs?

"2026 was just the warning shot in terms of input costs," said Michael Hoffstatter, managing director of input financing at Growers Edge. Some producers blunted this year's fertilizer spike through prepurchase pricing, but he expects high costs to persist all of 2027. His advice: secure financing lines early, arrive at the lender with a marketing plan, and consider early discount pricing rather than waiting until spring.

Jordan Howe of Nutrien Financial says tight margins now feel like a persistent condition, not a temporary disruption. Her building blocks: plan early, mind liquidity, diversify capital and align strategic financing with goals.

In the field, BASF technical service rep Mike Probst says record-fast harvest opened room for tillage, fertilizer and fall burndown, ideal when daytime highs hold in the 50s for several days to ensure systemic herbicide uptake.

Whatever Tuesday's numbers show, the January USDA reports remain the final word on 2026 yields — and November is just the rest stop.