Many ethanol plants have temporarily stopped operating because of tight corn supply, rising basis and small-refinery waivers issued by the EPA. The Sioux Center, Iowa plant halted production in mid-September, and corn basis rose $0.05 to $0.15 per bushel in September in its area.
Lower ethanol output reduces corn grind and DDGS supply, which tightens feed co-product availability and supports local corn basis.
After 318 past bullish policy events, Corn moved a median -0.1% over 5 sessions (48% higher; middle half -1.4% to +1.5%), and -0.2% over 20.
Not enough comparable past events yet for a historical read.
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.