USDA released its October Cattle on Feed report Friday, showing 11.4 million cattle in feedlots with capacity for 1,000 head or more, slightly below last year.

September placements were the lowest for the month since records began in 1996, marking the third consecutive month of placements setting a record low for the respective month. Marketings followed suit with the lowest September total on record and extending that streak for a fourth consecutive month.

Like previous months, most of the on-feed inventory came not from more cattle being placed in feedlots but from slower marketings and feeding cattle to heavier weights. It takes longer to move the cattle through the system with cattle being fed to heavier weights. The estimated number...