Grains Rise: Soy, Corn, Wheat Firm Ahead of USDA
Key Facts
- The soybean tracker rose SOYB settled at US$28.14, up 1.74%, as continuous CBOT soybeans climbed 22.25¢ to 1,331.75¢ per bushel.
- The corn tracker firmed CORN closed at US$20.01, up 0.91%, shaking off early US harvest supplies that widened the cash basis.
- The wheat tracker rebounded WEAT finished at US$26.71, up 1.64%, after trading between US$26.28 and US$26.93 during the session.
- China demand stayed the swing factor with buyers still cautious on new Brazilian and Argentine bean bookings even as prices firmed.
- US harvest pressure built early corn and soybean field work expanded physical availability across the Midwest.
- Wheat weather capped the upside as clearer Northern Hemisphere conditions kept Black Sea and EU wheat competitive against Latin American origin.
Today’s Focus
All three New York grain trackers closed higher on Thursday, September 10, 2026. The wheat fund WEAT led the advance, rising 1.64% to US$26.71.
The gains tracked firm Chicago futures rather than fund-flow noise. Continuous CBOT soybeans climbed 22.25¢ to 1,331.75¢ per bushel as traders positioned before the next US supply report.
For Latin America, the signal is constructive: Chinese demand remains the central swing factor, while US harvest supply is only temporarily softening corn.
What matters today. Firm CBOT futures and recovering fund prices put the focus back on China’s next purchase round, not on US harvest pressure.
01 The session in one read
Soybean, corn and wheat trackers all closed higher on Thursday, September 10, 2026, as buyers returned before the next US supply report.
SOYB settled at US$28.14, up 1.74%. CORN closed at US$20.01, up 0.91%, while WEAT gained 1.64% to US$26.71.
The broad advance lines up with firm CBOT futures ahead of the next US Department of Agriculture report, not with any shift in the Chinese demand story. With continuous soybeans up 1.70% on the day, the funds followed the underlying board.
The variable to watch is whether China returns with fresh Brazilian soybean bookings; without them, the recovery in the trackers will struggle to extend after the report lands.
02 The board
The wheat tracker WEAT traded between US$26.28 and US$26.93 during the session, the widest intraday spread among the three funds, before closing mid-range as buyers returned into the bell.
Continuous CBOT soybeans were reported near 1,331.75¢ per bushel, up 22.25¢ or 1.70% on the day. The SOYB fund’s matching gain confirms the move came from the futures board, not from fund-flow quirks.
| Asset | Level | Change |
|---|---|---|
| Soybeans (SOYB) | US$28.14 | +1.74% |
| Corn (CORN) | US$20.01 | +0.91% |
| Wheat (WEAT) | US$26.71 | +1.64% |
Source: RT close, 2026-09-10. Where a commodity has no spot feed, an exchange-traded tracker or leading producer is shown as a labelled proxy.
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Latin America — Cross-Market Board
| Instrument | Last | Change | YoY | Prev. | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| IBOV | 188,268.59 | +1.42% | +21.85% | 185,629.04 | 168,310 | 167,142 | — |
| IPSA | 11,238.63 | -1.16% | — | 11,370.12 | 11,210 | 10,984 | 1,513,213,483 |
| IPC MEX | 64,106.82 | -1.09% | +12.17% | 64,814.97 | 66,121 | 65,405 | 108,886,187 |
| MERVAL | 3,157,852 | +1.53% | +30.51% | 3,022,485 | 3,042,365 | 2,991,150 | — |
| COLCAP | 2,626.71 | +1.65% | — | 9.04 | 9.05 | 9.02 | 4,133 |
| BVL PERÚ | 60,702.89 | -2.19% | — | — | — | — | — |
| USD/BRL | 5.16 | +0.01% | -5.13% | 5.16 | 5.18 | 5.14 | — |
| EUR/BRL | 5.95 | +1.01% | -5.83% | 5.89 | 5.98 | 5.94 | — |
| USD/MXN | 17.06 | -0.24% | -8.58% | 17.10 | 17.08 | 17.01 | — |
| USD/CLP | 913.98 | +0.04% | -5.67% | 913.65 | 915.11 | 906.68 | — |
| USD/COP | 3,140 | +0.03% | -22.04% | 3,139 | 3,141 | 3,105 | — |
| USD/PEN | 3.36 | -0.66% | -4.82% | 3.38 | 3.38 | 3.35 | — |
| USD/ARS | 1,493 | +0.10% | +12.96% | 1,491 | 1,494 | 1,480 | — |
| USD/UYU | 40.27 | +1.24% | +1.80% | 39.77 | 40.27 | 40.23 | — |
| USD/PYG | 5,939 | +1.68% | -19.54% | 5,841 | 5,939 | 5,925 | — |
| USD/BOB | 11.64 | -0.76% | +72.04% | 11.73 | 11.72 | 11.64 | — |
| USD/DOP | 58.34 | +1.25% | -3.44% | 57.62 | 58.34 | 58.04 | — |
| USD/CRC | 445.92 | +0.89% | -9.71% | 441.97 | 448.50 | 445.92 | — |
03 What moved it
China’s import posture set the tone for soybeans. Traders described the demand outlook as underwhelming, a key concern for Brazil and Argentina, which sell the bulk of their exportable beans to Chinese crushers.
In corn, early US harvest progress widened the cash basis, the gap between futures and physical grain. Front-month CBOT corn was quoted around 514.00¢ per bushel, with an intraday range of 508.75¢ to 520.75¢.
Wheat faced better Northern Hemisphere harvest weather. Currency shifts also made Black Sea and EU wheat more competitive, undercutting Latin American and US offers.
04 The Latin American read
For Brazilian farmers, the soybean futures curve remains firm: major 2026-27 contracts clustered between 1,295.25¢ and 1,339.25¢. September 10 spot soybeans around US$12.90 per bushel suggest stable crush margins for processors.
Argentine exporters face a more competitive wheat market. When Black Sea supplies cheapen in dollar terms, Brazilian and Argentine wheat loses its premium to North African and Middle Eastern buyers.
South African exchange data showed the domestic soybean contract SOYB SEP26 trading around 8,735.00 local currency units, down 4.00 on the day. The move shows how local producing countries absorb both Chicago futures and their own currency shifts.
05 The names to watch
SOYB is the exchange-traded fund that tracks soybean futures. Its 1.74% gain to US$28.14 tracked the CBOT continuous contract, which rose 1.70%.
CORN tracks corn futures and added 0.91% to US$20.01, holding firm even as harvest supply built in the physical market.
WEAT tracks wheat futures and posted the largest gain, 1.64% to US$26.71, recovering part of its recent slide.
06 The outlook
The next big test is the USDA WASDE report, which will put corn yields in the spotlight. Pre-report positioning lifted corn and soybeans through the week.
For Latin American exporters, the variable that matters is whether China steps back into the soybean market. Until then, expect the funds to trade with a firm but cautious tone.
07 What to watch
- USDA WASDE report: Corn yield revisions will set the tone for CBOT and the CORN tracker.
- China soybean bookings: Fresh purchases of Brazilian or Argentine beans would extend the soybean fund’s recovery.
- US harvest pace: Faster corn and soybean field work widens the cash basis and pressures futures.
- Black Sea wheat currency: A weaker rouble or stronger dollar makes Black Sea wheat cheaper against Latin American offers.
Frequently Asked Questions
Why did grain trackers rise on Thursday?
All three funds followed firm Chicago futures, with continuous CBOT soybeans up 1.70% to 1,331.75¢ per bushel ahead of the USDA report.
What is the cash basis in corn?
The cash basis is the gap between futures and physical grain prices; early US harvest supply widened it on September 10, pressuring the CORN tracker.
How does China affect Latin American grains?
China is the leading importer of Brazilian and Argentine soybeans; a weaker demand outlook directly hits export revenue across the region.
Why did wheat lead the gains?
WEAT rose 1.64% as buyers returned after recent losses, though improved Northern Hemisphere weather keeps Black Sea and EU wheat competitive.
Market data: RT
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