
Conab's seventh harvest survey estimates Brazil's 2019/20 first-crop corn area at 4.22 million hectares, up 2.8%, but average national yield is projected 4.2% lower than last season. Lack of rain in Rio Grande do Sul damaged productive potential, and second-crop corn planting has practically finished.
A lower Brazilian corn yield tightens export availability and supports corn prices against the US and Argentine supply.
After 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.
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.