
Dec corn rose 1.9% on the week to $5.27 1/4 on Sept. 17, 2021, its first weekly gain in three weeks.
Wheat rose about 3% on the week amid Plains dryness. November soybeans fell 12 cents to $12.84 after China booked Brazilian soybean cargoes for fall delivery.
Dry Plains conditions tighten US wheat supply and support wheat and corn prices. Chinese purchases from Brazil shift demand away from US soybeans and pressure soybean prices.
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.
After 1,072 past bullish weather events, Wheat (SRW) moved a median +0.2% over 5 sessions (55% higher; middle half -1.4% to +2.3%), and +0.3% over 20.
After 363 past bearish weather events, Soybeans moved a median -0.6% over 5 sessions (42% higher; middle half -2.5% to +1.1%), and -0.2% 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.