
Mississippi River vessel traffic was halted north of St. Louis after a towboat's 12 barges carrying corn broke apart and struck Lock and Dam 25 near Winfield, Missouri. The Army Corps expected reopening the same day, with barge recovery operations lasting several days.
Closure stranded Midwest grain movements to Gulf export terminals, lifting spot barge freight rates sharply north of the closure and pressuring Midwest cash corn and soybean bids.
Not enough comparable past events yet for a historical read.
After 359 past bearish logistics events, Corn moved a median -0.3% over 5 sessions (44% higher; middle half -1.5% to +1.5%), and -0.5% over 20.
After 297 past bearish logistics events, Soybeans moved a median +0.3% over 5 sessions (54% higher; middle half -1.5% to +1.8%), and +0.7% 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.