
Corn and wheat futures firmed on December 2 as tensions rose in the Black Sea. Consultant Michael Cordonnier cut his 2025-26 Brazilian corn estimate by 2.0 MMT to 138.0 MMT and his Brazilian soybean estimate by 1.0 MMT to 176.0 MMT due to delayed planting and heat.
Soymeal fell about $1.30 while soyoil rose.
Lower Brazilian crop estimates tighten South American supply ahead of US and Brazilian export seasons, supporting corn and soybean prices. Soymeal weakness reflects softer demand, weighing on meal prices.
After 323 past bullish geopolitics events, Corn moved a median +0.5% over 5 sessions (57% higher; middle half -1.5% to +2.9%), and +0.9% over 20.
After 72 past bullish geopolitics events, Soybeans moved a median +0.4% over 5 sessions (60% higher; middle half -1.0% to +2.5%), and -1.0% over 20.
After 361 past bullish geopolitics events, Wheat (SRW) moved a median +0.7% over 5 sessions (58% higher; middle half -1.4% to +3.7%), and +1.3% over 20.
After 17 past bearish geopolitics events, Soybean Meal moved a median -0.1% over 5 sessions (47% higher; middle half -2.4% to +1.9%), and +0.3% 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.