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Brazilian farmers had planted 0.3% of their first corn crop by late the prior week, versus 1.6% a year earlier, with wet conditions slowing planting especially in Rio Grande do Sul. Argentina's sunflower planting was 11.5% complete against a 6.9% average, and the Rosario Grain Exchange expects Argentine corn acreage to fall 5.4% in 2026/27.
Slow Brazilian first-crop corn planting and a smaller expected Argentine corn area tighten near-term export supply, supporting corn prices. Sunflower planting is ahead of normal, which is a minor offset for sunflower meal.
soybeanandcorn.comAug 17, 2026After 1,465 past bullish weather events, Corn moved a median +0.2% over 5 sessions (54% higher; middle half -1.4% to +1.9%), and +0.9% over 20.
Not enough comparable past events yet for a historical read.
Moves of each commodity's benchmark from the last close before the event. Historical reads pool past events of the same kind; they describe what happened, not what will. Not investment advice.
