Grain Market Overview: Start Tuesday 28.07.2026

Wheat Slides to a Two-Week Low as Crude Craters Further, Corn Steadies as Ratings Miss Expectations

Crude oil's continued slide alongside easing Middle East tensions is undercutting the entire grain complex Tuesday, even as sharply weaker-than-expected corn and soybean crop ratings offer a competing bullish signal traders are still working through.

Grains open mixed Tuesday after Monday's broad sell-off, with wheat extending losses to a two-week low, corn holding within Monday's range on modest gains, and soybeans easing further as an improving weather outlook and falling energy prices offset disappointing crop condition data.

Middle East De-Escalation Pressures Crude and the Complex

A higher start overnight, driven by weaker-than-expected crop ratings, was unable to hold across most of the ag space as US weather forecasts turned less threatening while crude oil prices continued to pull back. Spot WTI Sept '26 crude oil is down $1.00 near $81.55 per barrel after President Trump described peace negotiations with Iran as "good," while Iran and Oman are seeking an agreement to reopen the Strait of Hormuz. Spot RBOB is up $0.02 per gallon and heating oil is $0.05 higher, but the broader energy pullback, following Monday's $7.40 crude collapse, continues to unwind the war premium that had supported soybean oil and the wider complex in recent weeks.

US Weather Turns Less Threatening

Near-term forecasts have added rain to key growing areas in the central Midwest, with much of Iowa and surrounding states expected to see 0.75 to 2.0 inches by the end of this week, while lighter but still meaningful precipitation is expected across the far Western Corn Belt and Northern Plains. The southwestern Plains are set to remain hot and dry, and the week-two outlook calls for above-normal temperatures with normal-to-below-normal precipitation across much of the nation's midsection. Europe will be hot this week with only scattered rain in the east, while South America holds in a seasonably warm pattern with moderate-to-heavy rain in northeastern Argentina and far southern Brazil.

Dollar Strength and the Fed Meeting Add Macro Headwinds

The US dollar is moderately higher and trading to a five-week high, a further headwind for export competitiveness across the grain complex. The Federal Reserve begins its two-day meeting Tuesday, with odds of a 25-basis-point interest rate hike sitting at roughly 35%, while US stock indices are mixed heading into the decision.

Crop Ratings Fall Sharply Across Corn and Soybeans

Monday's Crop Progress data delivered a rougher picture than the market had priced in. Corn conditions fell 4 points to 63% good-to-excellent, versus expectations for just a 2-point decline, with ratings falling in 15 states and improving in only three; current ratings suggest an average US yield of 183 bushels per acre, down from 184.4 last week, with production at 16.002 billion bushels, in line with the current USDA forecast. Soybean conditions fell 3 points to 63% good-to-excellent against expectations for a 1-point decline, the lowest ratings of the crop cycle though still slightly above the historical average, with the implied yield slipping to 53.3 bushels per acre from 53.9 last week and production at 4.502 billion bushels versus the USDA's 4.475 billion forecast; the market continues to have little wiggle room for yields slipping below the 53-bushel trendline. Winter wheat harvest advanced to 81% complete, 2 points ahead of normal, while spring wheat ratings held steady at 53% good-to-excellent against expectations for a 2-point decline, even as the poor-to-very-poor category rose 3 points to 15% and composite ratings have now fallen for four consecutive weeks; current ratings imply a spring wheat yield of 49.4 bushels per acre and production of 449 million bushels, below the USDA's July forecast of 475 million.

Export Inspections Show Wheat and Corn Outpacing Soybeans

Wheat shipments totaled 394,785 MT in the week of July 23, up 71.82% from the week prior and 36.01% above the same week last year, led by Bangladesh at 58,341 MT, Japan at 56,444 MT, and Mexico at 54,407 MT, though marketing-year shipments of 2.543 MMT remain 23.21% below the same period last year. Corn shipments of 1.488 MMT were down 7.74% from the week prior and 2.88% below last year, with Mexico, Japan, and Colombia the top destinations, while marketing-year exports of 75.324 MMT are running 24.81% ahead of last year. Soybean shipments of 348,850 MT rose 9.3% from the week prior but were 18.5% below the same week last year, with Mexico, Egypt, and Japan the leading destinations, leaving marketing-year shipments at 38.97 MMT, 17.5% below last year's pace.

SovEcon Trims Russian Wheat Export Forecast

SovEcon cut its estimate for total Russian wheat exports to 44.6 MMT, a 1.9 MMT reduction from its previous figure. The downward revision reinforces the narrative of tightening Black Sea wheat supply even as prices trade lower Tuesday on broader macro pressure.

MARS Cuts European Wheat and Corn Yield Estimates

MARS lowered its EU soft wheat yield estimate to 5.88 tonnes per hectare, down from 6.0 last month and 7% below last year, while also cutting its EU corn yield forecast by 6.1% to 6.93 tonnes per hectare. Both revisions point to a deteriorating European production outlook that stands in contrast to the improving US weather picture, adding a layer of support beneath the broader risk-off tone in wheat and corn.

Brazil's Second Corn Crop Nears the Finish Line

AgRural reports Brazil's second corn crop harvest is 60% complete, versus 68% at the same point last year. Harvest in Mato Grosso is largely finished, but progress in the interior south has been slowed by rain, a dynamic worth watching as it works through to Brazil's export pipeline in the months ahead.

Soybean Demand Watch: Sinograin Auction and a Reversed Gulf FOB Spread

China's state-owned Sinograin is set to auction off 504,000 MT of imported soybeans on Friday, a supply-side signal worth monitoring for its impact on near-term Chinese import needs. Modest flash sales to both China and an unknown destination were reported Monday, and the market will be watching whether China uses this week's price break to acquire additional US soybeans, particularly now that US Gulf FOB offers have slipped to a $0.10 discount versus Brazilian offers for September/October shipment, a reversal from the premium seen earlier this month.

Wheat: CGO Falls to a Two-Week Low

CGO Sept '26 opens $0.07 lower at $6.53, a two-week low, KC Sept '26 is $0.03 lower at $7.26, holding within Monday's range, and MIAX Sept '26 is $0.06 1/4 lower at $7.00, following a Monday session that saw Sept '26 CBOT wheat close at $6.60, down 18 cents, with Chicago SRW down 11 to 18 cents and KC HRW down 10 to 16 1/4 cents. Continued Russian and Ukrainian strikes on grain storage, port infrastructure, and vessels are providing a supply-side floor, but broader macro pressure from a stronger dollar and falling crude oil is keeping the complex on the defensive into the session.

Corn: Holding Steady Despite a Larger-Than-Expected Ratings Drop

Sept '26 and Dec '26 corn are both $0.01 1/2 higher at $4.53 1/4 and $4.75 1/2, respectively, both holding within Monday's range, following a session that closed at $4.51 3/4 for Sept '26, down 12 1/2 cents, pressured by an improving weather forecast and the sharp drop in crude oil. Crop ratings falling to their lowest point of the growing season, alongside MARS's cut to the EU corn yield estimate, are providing underlying support even as the broader macro backdrop caps upside into the open.

Soybeans: Extending Monday's Losses as Products Stay Weak

Aug '26 beans open $0.04 lower at $12.04 1/2 while Nov '26 is $0.05 lower at $12.08 3/4, following a Monday session that saw contracts fall 18 3/4 to 40 1/2 cents, with Aug '26 closing at $12.08 1/2, down 39 1/2 cents, as weaker soymeal and soybean oil futures compounded the pressure. Crush margins are down $0.04 1/2 to $2.79 per bushel, and with the market having little tolerance for further yield deterioration below the 53-bushel trendline, all eyes remain on whether China steps in to buy US soybeans following this week's price break and the newly discounted Gulf FOB offer versus Brazil.