Corn, wheat and soybeans start the week higher as markets focus on US-China trade discussions, renewed Black Sea tension and harvest delays, while weaker energy prices and heavy speculative positioning limit the upside.
Grain markets are broadly firmer at the start of Monday, September 21, with fresh buying returning after Friday’s risk-off session. Chinese demand expectations, continued disruption around Black Sea exports and wet harvest conditions across parts of the US Midwest are providing support, although lower crude oil and already-large speculative positions remain important headwinds.
US-China Trade Expectations Put Demand Back in Focus
Agricultural markets begin the week with renewed attention on US-China trade discussions, with traders hoping this week’s high-level meeting could translate into additional Chinese purchases of US agricultural commodities. Corn and wheat remain the clearest potential beneficiaries if fresh demand emerges, while soybeans already have stronger underlying support following a 111,000 MT private US soybean sale to China for 2026/27 announced Friday. Preparatory US-China talks took place over the weekend ahead of this week’s summit, keeping trade expectations central to Monday’s price action.
Midwest Rain Continues to Slow Harvest Progress
Heavy weekend rain across the northern and central Midwest is delaying crop maturation and harvest activities, providing near-term support to both corn and soybeans. Conditions are expected to turn drier across the Central Midwest and Great Lakes this week, while rainfall shifts toward the far western and eastern Corn Belt. The immediate effect is supportive because wet fields can slow the flow of newly harvested supplies into the cash market, although improving field conditions later in the week could restore harvest pressure.
Black Sea Risk Returns to the Wheat Market
Wheat is receiving renewed geopolitical support as Russian and Ukrainian forces continue strikes affecting port infrastructure and cargo vessels. Black Sea exports remain constrained, while Ukrainian wheat shipments since July 1 are running at 2.33 MMT, down 44% year over year. Lower interior prices in both Russia and Ukraine may also reduce winter wheat planting incentives, adding a longer-term production risk alongside the immediate logistics problem.
International demand is also providing a floor. Pakistan purchased 365,000 MT in last week’s 750,000 MT tender at just under $349/MT C&F and has issued another 185,000 MT tender closing September 28. These tenders help maintain demand interest even while US wheat remains sensitive to Black Sea developments and speculative positioning.
Corn Demand Hopes Meet Heavy Fund Length
Corn is trading higher, but speculative positioning remains an important constraint. Managed money added nearly 2,000 contracts and now holds around 427,000 net long contracts, just below the record of 431,000. Such a large long position can amplify gains if fresh Chinese demand develops, but it also raises liquidation risk if this week’s trade discussions fail to generate new buying.
US feed demand signals were mixed after Friday’s cattle-on-feed report. Feedlots held 11.163 million head as of September 1, up 0.7% from last year but slightly below expectations, while August placements fell 9.2%, significantly more than the expected 3.2% decline. That limits the bullish impact from domestic feed demand and leaves exports and harvest weather as more important short-term drivers for corn.
Soybeans Retain Strong China Support
Soybeans start Monday higher as Chinese demand continues to influence the global trade balance. Abiove reduced its Brazilian soybean export forecast by 0.4 MMT to 115 MMT, citing increased Chinese interest in US soybeans, while raising Brazil’s crush forecast by 0.3% to 63.5 MMT. The shift is supportive for US beans because it suggests stronger competition for Chinese demand between the US and Brazil.
However, China still relied overwhelmingly on Brazil in August: of 12.14 MMT of soybeans imported during the month, 10.6 MMT came from Brazil, while only 200.5 MT were sourced from the US. Sinograin is also expected to auction another 543,000 MT of government soybean stocks tomorrow, which could temporarily reduce the urgency for additional import buying.
South American Planting Advances as Weather Remains Mixed
Brazilian planting is already progressing slightly faster than last season. AgRural estimates the first corn crop at 27% planted, ahead of 25% last year, while soybean planting has reached 1.2% versus 0.9% a year ago. Mostly dry conditions dominated Brazil and Argentina over the weekend, while this week’s rain is expected to favor interior southern Brazil, leaving hot and dry conditions elsewhere. Faster planting is mildly bearish for longer-term supply expectations, although uneven rainfall keeps weather risk in the market.
Lower Energy Prices Pressure Soybean Oil
Energy markets are moving lower at the start of the week, creating a negative cross-market influence for soybean oil and, to a lesser extent, the wider grain complex. Nov ’26 WTI crude is down $2.65/barrel at $93.45, while RBOB is down $0.07/gallon and heating oil is $0.17 lower. Soybean oil is already reflecting that pressure, trading at a four-week low, while soybeans themselves remain supported by Chinese demand and meal strength.
Fund Positioning Keeps Volatility Elevated
Positioning remains unusually important across all three markets. Money managers reduced exposure across the three wheat classes by nearly 15,000 contracts, leaving a net long of around 63,000, while corn length remains near record levels. In soybeans, money managers hold nearly 186,000 net long soybean meal contracts, while the combined net long across the soybean complex has expanded to a record 541,150 contracts. These positions can support momentum when bullish news emerges, but they also leave markets vulnerable to sharp reversals if trade or weather expectations disappoint.
Wheat Futures
Wheat starts Monday firmly higher. Dec ’26 Chicago wheat is up $0.10 at $7.24/bu, Dec ’26 Kansas City wheat is up $0.09 at $7.93/bu, while Dec ’26 Minneapolis wheat is up $0.05 1/2 at $7.47/bu. Continued strikes affecting Black Sea logistics, a 44% year-over-year decline in Ukrainian wheat shipments and renewed international tender demand are providing support after Friday’s selloff, while reduced speculative length leaves room for fresh buying.
Corn Futures
Dec ’26 corn is up $0.07 at $5.34 1/2/bu in two-sided early trade. Prices remain inside the range established on September 11, with Chinese demand hopes and rain-delayed US harvest activity supporting the market. However, near-record managed-money length, faster Brazilian planting and softer US cattle placements limit the strength of the bullish argument.
Soybean Futures
Soybeans are also starting the week higher, with Nov ’26 beans up $0.11 at $13.14 1/2/bu. Oct ’26 soybean meal is up $3.40 at $358, while Oct ’26 soybean oil is down 16 points at 67.54, after reaching a four-week low overnight, and crush margins are down nearly $0.20 at $2.16 1/2/bu. Chinese demand and expectations surrounding this week’s US-China discussions support beans and meal, but lower energy prices, the Sinograin auction and record speculative length remain important limits on further gains.