Shake Shack shares plunge 28% after revenue miss as beef costs and weak demand bite

Beef costs rose as customers spent less

Shake Shack reported a quarterly loss and missed revenue estimates as higher commodity costs, including beef, squeezed margins. Weak consumer spending added further pressure, and the market punished the stock, sending shares down about 28% in early trading. The update highlights how quickly fast food operators can be hit when demand softens and input costs climb.