
Aug feeder cattle rose the daily limit of $10.75 to $353.375 after a screwworm detection was reported. August live cattle rose $3.675 to $241.525 after touching a nine-week low.
Feeder cattle had earlier hit a 5.5-month low.
A screwworm detection raises disease risk and possible movement restrictions on cattle, tightening feeder supply and lifting cattle prices.
After 122 past bullish disease events, Feeder Cattle moved a median +0.4% over 5 sessions (60% higher; middle half -1.0% to +1.6%), and +2.0% over 20.
After 148 past bullish disease events, Live Cattle moved a median +0.4% over 5 sessions (62% higher; middle half -0.5% to +1.2%), and +1.4% 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.
Feeder futures closed limit higher after the screwworm detection from 5.5-month lows, directly describing the large move (the report date is a day later than the move window but describes the same session).