Soybean futures posted the sharpest losses of the September 28 session, with the November contract finishing at $12.88 1/4, down 30 3/4 cents on the day. The soy complex weakness ran through both products: October soybean meal closed at $361.70 per ton, off $12.20, and October soybean oil settled at 67.11 cents, down 15 points.

Grain markets finished lower across the board. December corn closed at $5.23 per bushel, losing 5 1/4 cents. December Chicago wheat took the biggest hit among the grains, settling at $6.88 3/4, down 14 1/2 cents.

Livestock contracts were mixed. October live cattle closed at $217.45, down $1.42. October feeder cattle fell $3.02 to $331.90. The one bright spot in the livestock pit was October lean hogs, which posted a 2-cent gain to close at $78.25. October Class III milk figures rounded out the session's closing board.

What the numbers mean for grower margins

For corn growers holding unpriced bushels, the December contract's slide to $5.23 keeps cash bids near levels where many producers' breakeven assumptions sit uncomfortably tight, depending on regional basis and 2026 input costs. Wheat producers face a steeper discount: the 14 1/2-cent drop in December Chicago wheat to $6.88 3/4 pressures margins for those still marketing new-crop supplies.

The soy complex decline carries the most weight for crush margins. A 30 3/4-cent drop in the November bean contract, paired with a $12.20 decline in October meal and a softer oil board, signals processors paid less for every component of the crush on Monday. For growers with on-farm storage, the spread between prompt and later contracts will shape decisions on whether to move beans now or hold.

On the livestock side, cattle feeders watched October live cattle give back $1.42 to $217.45 while feeder cattle lost $3.02 at $331.90 — a combination that compresses returns for feedyard placements at current replacement costs. Hog producers caught a marginal break, with October lean hogs adding 2 cents to $78.25.

A one-day read, not a trend

These are closing futures figures for a single session on September 28, 2026, and they reflect exchange settlement prices rather than cash market results. Local basis, delivery windows and elevator spreads will determine what growers actually realize. Readers comparing these settlements against earlier sessions or USDA report windows should account for contract months quoted — December corn, November soybeans, October products and October livestock contracts each carry their own positioning dynamics heading into delivery cycles.

Market participants will watch whether the soy complex sell-off extends into the next session or whether end-user buying steps in near these levels, with the next round of government and private estimates likely to set the tone for harvest-time price discovery.