December corn closed at $4.79 3/4 on October 9, 2026, down 20 1/2 cents — the steepest move on the grain side of a session that split the board sharply between row crops and livestock.

The soybean complex moved the other way. November soybeans finished at $12.92, up 4 1/2 cents, with the products leading the advance: December soybean meal jumped $8.00 to $365.60, and December soybean oil gained 10 points to 68.02.

What did the other contracts do?

• Chicago December wheat: $6.71, down 12 1/4 cents
• December live cattle: $227.05, up $3.50
• November feeder cattle: $341.95, up $7.07
• December lean hogs: $67.82, down 77 cents
• November Class III milk: close not reported in the available data

Why the split matters for margins

A 20 1/2-cent drop in December corn compresses the value of stored and unpriced new-crop bushels, while the $8.00-per-ton surge in soybean meal raises feed costs for poultry, hog and dairy operators who buy protein on the board. Cattle feeders saw both sides of that ledger: feeder cattle gained $7.07 while live cattle added $3.50, and feed grain costs fell.

Lean hogs closed 77 cents lower at $67.82, the lone decliner in the livestock complex, pressuring hog margins even as meal costs climbed.

The soybean oil gain of 10 points to 68.02 supports crush margins, a factor crushers and processors will weigh against the modest 4 1/2-cent advance in the bean itself.

Traders will watch whether the corn break extends or whether the product-led soybean rally pulls the rest of the complex higher in the next session.