Key Facts
- Corn tracker led gains the Teucrium Wheat Fund closed at US$25.38, up +0.16% on Thursday, August 20.
- Black Sea disruption returned renewed export jitters from the war-torn corridor pushed Euronext wheat futures to a four-week high and lifted the wheat proxy.
- Corn reclaimed a key level the corn tracker settled at US$18.83, up +0.37%, as December Chicago futures broke five dollars a bushel for the first time since February 2025.
- Soybeans tracked modest strength the soybean fund ended at US$26.17, a gain of +0.04%, supported by fresh Chinese buying interest from South American suppliers.
- Brazil and Argentina anchor supply large Brazilian safrinha corn and soybean harvests and lower Argentine export taxes continue to shape global flows.
- Currency remains a swing factor a firmer US dollar makes dollar-priced grains costlier for importers, while a weaker Brazilian real boosts local returns for exporters.
Today’s Focus
Corn led the grain complex higher on Thursday, August 20, as the Pro Farmer Crop Tour pointed to a smaller US harvest and renewed Black Sea jitters lifted wheat alongside it, with the wheat tracker adding +0.16% to US$25.38. Corn also rallied strongly, with the corn fund up +0.37% to US$18.83 as December Chicago futures reclaimed the five-dollar handle for the first time since February 2025.
Soybeans joined the advance, with the soybean tracker settling +0.04% higher at US$26.17. The move was underpinned by signs of fresh Chinese booking interest for South American cargoes, even as ample Brazilian supplies continued to cap the upside.
Against this backdrop, Brazil and Argentina remain the world’s export engine. Large Brazilian safrinha corn and soybean harvests are flowing through ports such as Santos, while lower Argentine export taxes have improved farmer incentives, keeping forward shipment programmes active for both corn and wheat.
What matters today. Whether Black Sea disruption becomes a sustained supply shock or a temporary price spike will determine if this rally can hold against South America’s heavy export pipeline.
01 The session in one read
Corn was the clear leader on Thursday, August 20, with the wheat tracker closing +0.16% higher at US$25.38. The burst came as the Pro Farmer Crop Tour found Illinois corn yields 7.7% below last year, while renewed Black Sea tensions pushed Euronext wheat futures to a four-week high.
Corn and soybeans also firmed. The corn fund rose +0.37% to US$18.83, supported by December futures trading at an eighteen-month high. The soybean tracker added +0.04% to US$26.17, helped by signs of renewed Chinese interest in South American cargoes.
Thursday’s gains were not a short-covering bounce. The Pro Farmer Crop Tour found Illinois corn yields down 7.7% on last year, and December futures broke US$5 a bushel for the first time since February 2025. Ample South American supply still caps the upside, but the US balance sheet is tightening. The variable to watch is whether the tour’s final national estimate confirms the shortfall.
02 The board
The grain-tracking exchange-traded funds all closed in positive territory. The Teucrium Wheat Fund led the complex at US$25.38, while the Teucrium Corn Fund reached US$18.83 and the Teucrium Soybean Fund settled at US$26.17.
The moves tracked a firm tone in Chicago futures, where December corn, Kansas City wheat and Chicago wheat contracts all traded a few cents higher in early dealing. December corn above five dollars a bushel marked its strongest level since February 2025.
| Asset | Level | Change |
|---|---|---|
| Soybeans (SOYB) | US$26.17 | +0.04% |
| Corn (CORN) | US$18.83 | +0.37% |
| Wheat (WEAT) | US$25.38 | +0.16% |
Source: RT close, 2026-08-20. Where a commodity has no spot feed, an exchange-traded tracker or leading producer is shown as a labelled proxy.
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| Instrument | Last | Change | YoY | Prev. | High | Low | Volume |
|---|---|---|---|---|---|---|---|
| IBOV | 167,927.15 | +0.06% | +21.85% | 167,830.27 | 168,310 | 167,142 | — |
| IPSA | 11,237.90 | -0.03% | — | 11,241.32 | 11,210 | 10,984 | 1,513,213,483 |
| IPC MEX | 64,436.38 | +0.68% | +12.17% | 63,999.26 | 66,121 | 65,405 | 108,886,187 |
| MERVAL | 2,875,950 | +0.05% | +30.51% | 3,022,485 | 3,042,365 | 2,991,150 | — |
| COLCAP | 2,444.32 | -0.39% | — | 9.04 | 9.05 | 9.02 | 4,133 |
| BVL PERÚ | 58,380.78 | +0.54% | — | — | — | — | — |
| 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
Black Sea supply fears were the catalyst for wheat’s jump. Disruptions to the region’s export corridor stirred up demand from European Union buyers, who are now competing for alternative supplies from Argentina and other origins.
For soybeans, the driver was more straightforward: fresh Chinese buying interest from Brazilian and Argentine suppliers. Investors watch daily export sales announcements for confirmation of an acceleration in commitments, though tight crushing margins in China continue to temper the pace of purchases.
Corn’s strength reflects both China’s import diversification and a reassessment of US yield risk. Beijing’s approval of key Brazilian exporters has made safrinha corn a more prominent part of the global import mix, reducing reliance on the US and Ukraine.
04 The Latin American read
Brazil’s massive soybean and second-crop corn harvests continue to anchor global supply, even on days when prices rise. Ports such as Santos are running an aggressive export campaign, keeping competition stiff for US and Ukrainian sellers.
Argentina’s role in corn and wheat exports remains strong after policy changes reduced export taxes and improved farmer incentives. That keeps forward shipment programmes active and means Argentine grain competes directly with Black Sea and North American cargoes.
The currency mechanism is worth watching. A weaker Brazilian real makes dollar-denominated grain sales more attractive for Brazilian farmers, potentially accelerating exports. A firmer dollar does the opposite, pinching importers and pressuring local-currency returns.
05 The names to watch
The Teucrium Wheat Fund is the most sensitive to Black Sea headlines and European Union import demand. The Teucrium Corn Fund reacts to Brazilian export volumes, Chinese approvals of Brazilian shippers, and US Midwest weather.
The Teucrium Soybean Fund is the purest play on China’s hog herd rebuild. Chinese soymeal and corn import volumes are dictated by the pace of that rebuild, making daily export sales data a key indicator for the whole complex.
06 The outlook
The rally’s durability depends on whether Black Sea disruption becomes a sustained supply shock or fades as a temporary risk premium. South America’s heavy export pipeline and a firm US dollar remain headwinds for the complex. The next signal will come from Chinese purchasing pace and any escalation in the Black Sea corridor.
07 What to watch
- Chinese export sales: Daily US export sales announcements show whether the fresh Chinese buying in soybeans is accelerating or just a one-off.
- Black Sea corridor: Any escalation in shipping disruptions will test whether wheat’s gain extends beyond a short-covering bounce.
- Brazilian real: A weaker real boosts dollar-denominated returns for Brazilian farmers and can pull forward further export flows.
- US Midwest weather: Late-season yield risk in corn and soybeans remains a swing factor if weather turns hot or dry.
Frequently Asked Questions
Why did wheat rise so much on Thursday?
Renewed Black Sea export disruptions lifted Euronext wheat futures to a four-week high, while the Pro Farmer Crop Tour pointed to a smaller US corn crop.
What drove soybeans higher?
Signs of fresh Chinese buying interest from Brazilian and Argentine suppliers underpinned the soybean tracker’s gain.
Why is Brazil’s harvest important to global grain prices?
Brazil’s massive soybean and safrinha corn crops anchor global supply, keeping competition stiff even when prices bounce.
How does the currency affect grain exports?
A weaker Brazilian real makes dollar-priced grain sales more attractive for local farmers, while a stronger dollar pinches foreign buyers.
This article was produced by The Rio Times’ automated newsroom system. How we use AI · Report an error
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