Beef packer margins deteriorated further last week to -$85/head, down from -$17/head the prior week, as continued strength in fed cattle prices again outpaced weakening boxed beef values. The Choice cutout declined $5.14/cwt to $386.41/cwt, while fed cattle prices rose $3.78/cwt to $388.36/cwt, pushing packer profits further into the red. The margin structure reflects sustained leverage by feedlots, with cash cattle continuing to rise despite softer beef values. Near-term pressure remains skewed to the downside for packers unless cutout values stabilize. Southern Plains feedlot placement margins improved ...