Grains & Sugar Weekly 09/04/2026

The grain and sugar complex remains supported by tightening supply and weather risks, but heavily extended speculative positions and possible improvements in Black Sea, Brazilian or Chinese conditions leave prices vulnerable to reversals.

• December Chicago wheat fell 50 cents on the week to $7.34 after reaching a three-year high of $7.95, while managed money swung to a 14,904-contract net long, the largest position since May 2022.
• Russia eliminated export duties on wheat, barley and corn through December 31, but SovEcon estimates Russian September shipments are the lowest for that month since 2010, while combined Russian and Ukrainian volumes are near 40% of normal.
• December corn reached a three-year high of $5.49 3/4, with managed money holding a record 431,062-contract net long and December open interest exceeding 1 million contracts for the first time.
• The USDA’s August corn yield estimate of 180.7 bushels per acre is 7.5 bushels above Pro Farmer’s tour estimate, while crop conditions remained at 57% good-to-excellent and RSI closed at 70.
• November soybeans gained 21 3/4 cents on the week to $13.09 3/4 as China bought 192,000 metric tons and unknown destinations bought 250,600 tons, but managed money’s 234,920-contract net long and RSI near 73 signal an overbought market.
• Sugar’s supply outlook tightened sharply: the International Sugar Organization shifted its 2026/27 forecast from a 1.1 million-metric-ton surplus to a 200,000-ton deficit, while Brazil’s Center-South output fell 7.9% year over year in the first half of August.

Takeaway: Near-term prices can rise further if Black Sea infrastructure remains disrupted, Chinese soybean demand strengthens, Asian El Niño risks worsen or sugar production disappoints, but crowded long positions and the possibility of stronger Brazilian output or smaller-than-expected US yield cuts make the complex vulnerable to sharp pullbacks.