U.S. soybean export inspections surged nearly 45% week over week to 24.7 million bushels for the week ending Sept. 10, blowing past the full analyst range of 11 million to 22 million bushels and anchoring a Monday rally in corn and soybean futures.

At the Chicago Board of Trade on Sept. 14, December corn settled 3 cents higher at $5.3325 per bushel and March corn gained 2.5 cents to $5.48. November soybeans rose 7.75 cents to $13.0425, with January beans up 8.25 cents to $13.2025. Wheat broke from the rally: December Chicago SRW fell 3.25 cents to $7.22, and December Kansas City HRW dropped 6 cents to $7.9250.

The moves arrive as producers head into harvest and weigh pricing, storage and risk-management decisions for the 2026/27 marketing year.

What did USDA's supply outlook change for corn?

USDA's latest projection cut the 2026 national corn yield estimate to 178.5 bushels per acre, with production still substantial at 15.8 billion bushels. The agency lowered ending stocks by 86 million bushels to 1.567 billion.

Corn export inspections totaled 60.1 million bushels for the week ending Sept. 10 — down roughly 9% from the prior week but inside market expectations of 49.2 million to 69.9 million bushels. Mexico, South Korea, Japan, Colombia and Indonesia were the five leading destinations. Cumulative 2026/27 inspections reached 85.6 million bushels, fractionally behind last year's pace, while USDA held its corn export forecast at 3.3 billion bushels.

Contract / Indicator	Level	Move
December corn	$5.3325/bu.	+3.0¢
March corn	$5.48/bu.	+2.5¢
USDA 2026 yield	178.5 bu./acre	Lowered

How strong is soybean demand?

Soybeans posted the stronger percentage recovery among the major row crops. Strength ran through the complex: October soybean meal gained roughly 1% and October soybean oil advanced almost 0.75%.

The weekly inspection number is the standout signal, but the cumulative picture is weaker. Since Sept. 1, soybean inspections total 33.6 million bushels, 16% below last year's pace. China, Japan, Indonesia, Egypt and Bangladesh led the weekly destinations.

Crush data adds another demand gauge. Ahead of the next monthly industry report, analysts expected August crush of 211.55 million bushels, versus 216.64 million in July, with soybean oil stocks projected at 1.257 billion pounds as of Aug. 31. If confirmed, the crush would decline from July yet mark the strongest August on record. Domestic processing demand matters directly for basis, storage and cash marketing choices while input costs keep pressure on working capital.

Why did wheat move the other way?

Technical selling pushed wheat lower through the Monday morning session. Weekly wheat inspections offered partial support, rising 6% to 16.8 million bushels — near the upper end of expectations, with Japan, Mexico, the Philippines, Thailand and Vietnam the top destinations.

The cumulative number is the problem: 2026/27 wheat inspections stand at 208.5 million bushels, roughly 28% below the previous year's pace, keeping the demand outlook under pressure.

What's next for harvest positioning?

Weather and macro conditions add uncertainty. Forecasts called for another 2 to 3 inches of rain in Iowa and northern Illinois between Tuesday and Friday, with roughly an additional inch possible across portions of the eastern Corn Belt and Great Lakes. Crude oil strengthened, the dollar firmed and Treasury yields moved higher — a combination that touches input costs, export competitiveness and broader commodity positioning.

Monday's rebound does not erase the underlying supply-and-demand risks heading into 2026/27: substantial projected corn production against strong export expectations, a soybean export surge trailing last year's cumulative pace, and wheat shipments running well below year-ago levels. With harvest advancing, market attention now shifts to realized yields, basis behavior, storage capacity and export demand — the factors that will determine whether this rally becomes a broader trend or stays a short-term technical bounce.