Grains: Wheat, Corn and Soybeans Daily — 2026-09-03
Grain markets are experiencing a "rip-roaring" bull run, with wheat, corn, and soybeans hitting multi-year highs driven by Black Sea supply disruptions, adverse U.S. weather, and robust Chinese demand. While wheat futures retreated slightly on Monday after reaching three-year peaks, soybeans broke above $13.00 per bushel for the first time in nearly three years, significantly impacting global feed costs and South American export competitiveness.
Grains: Wheat, Corn and Soybeans Daily — 2026-09-03
Top developments
Soybeans Surge Past $13 on Supply Squeeze and Chinese Buying
On Tuesday, September 1, November soybean futures rose to $13.12¾ per bushel, breaking the $13.00 threshold for the first time in nearly three years. This rally is fueled by a "perfect storm" of deteriorating crop conditions in the U.S., strong export demand from China, and rising crude oil prices which support biofuel margins. For CBOT settlements, this move signals a shift from a bearish outlook to a bullish trend, prompting traders to reassess yield potential in the Midwest before the September WASDE report.
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Black Sea Export Collapse Drives Wheat to Three-Year Highs
Wheat futures reached three-year highs last week as drone attacks on Russian ports in the Azov and Black Seas effectively halted grain shipments from the region. According to analysts at SovEcon, August exports of Russian wheat may fall to their lowest level in 16 years, creating a significant supply vacuum in the global market. Although Chicago SRW contracts saw profit-taking losses on Monday, September 1, the structural disruption to Black Sea logistics remains a primary driver for price volatility and premium pricing for U.S. and EU wheat.

Corn Prices Hit Multi-Year Peaks Amid Tightening US Supply
Corn futures surged to their highest levels in more than three years, with September contracts closing at $5.12 on August 28, up from previous lows. The rally is supported by heatwaves expected from Kansas to Ohio, which threaten final pollination and grain fill stages in key growing areas. Additionally, export inspections for corn have risen week-over-week, indicating strong offshore demand that is tightening domestic balances ahead of the fall harvest.
Argentina Sees Record Harvest Prices and Dollar Inflows
Argentine farmers are capitalizing on global price spikes, with local futures for corn, wheat, and soybeans reaching four-year highs. The agricultural complex generated USD 2.75 billion in dollar liquidation in August, a 33% year-over-year increase driven by strong corn shipments and improved commercialization rhythms. This surge in export revenue provides critical foreign exchange reserves for the country while positioning Argentine producers to compete more aggressively against Brazilian and U.S. supplies in Asian markets.
Local view
Brazil: Local media reports indicate that the spike in Chicago soybean prices is putting pressure on domestic feed costs for the poultry and swine industries, squeezing margins despite stable exchange rates. However, the higher prices are also attracting producers to sell spot soybeans, with prices approaching R$ 160 per sack at ports due to active Chinese demand. StoneX consultancy has revised its 2026/27 Brazilian soybean production estimate upward to 183.5 million tonnes, citing better productivity expectations in Rio Grande do Sul.
Russia: The Russian agricultural sector faces severe logistical challenges, with the Russian Grain Union noting that Baltic ports cannot quickly replace the capacity lost in the south. Media outlets report that the inability to export through the Black Sea is causing significant losses for farmers, as new crop volumes remain trapped within the country, depressing internal prices while global premiums soar.
Context & numbers
- CBOT Settlements (Aug 28): Sep Corn closed at $5.12 (+1.75¢); Sep Soybeans at $12.76¼ (+19.75¢); Sep Chicago Wheat at $7.67 (+24.25¢).
- Soybean Breakout: November soybeans traded above $13.00 on Sept 1, a level not seen since late 2023.
- Black Sea Volumes: August wheat exports from Black Sea ports dropped to approximately 1.8 million tonnes, the lowest level since 2010, due to drone strikes and infrastructure damage.
- Chinese Demand: Kpler data suggests China may purchase up to 25 million tonnes of U.S. soybeans under current trade relations, with auctions of state reserves clearing space for incoming cargoes.
- Argentine Liquidation: August agro-dollar liquidation reached USD 2.75 billion, driven by corn exports.
On the radar
- USDA Crop Progress Reports: Key updates on corn and soybean condition are scheduled for August 31 and September 8, with traders watching for further deterioration in crop ratings.
- September WASDE: The next major supply and demand balance sheet release is scheduled for September 11, which will likely reflect the latest yield adjustments from the Midwest crop tour findings.
- El Niño Signals: Analysts are monitoring developing El Niño patterns, which could bring wetter conditions to South America and disrupt the early planting of the Brazilian safrinha corn and soybean crops.
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