United Natural Foods Inc. (UNFI) shares plummeted 5.50% during Tuesday's intraday trading session, reversing earlier gains following the release of its second-quarter fiscal 2026 results.

The grocery wholesaler reported quarterly sales of $7.95 billion, which missed the analyst consensus estimate of $8.11 billion and represented a 2.6% decrease from the same period last year. The company attributed the sales decline primarily to the transition out of its Allentown distribution center as part of network optimization efforts.

Despite beating earnings per share estimates and raising its full-year adjusted EPS guidance, United Natural Foods lowered its fiscal 2026 net sales outlook to a range of $31.0 billion to $31.4 billion, down from its previous forecast and below analyst expectations. This combination of a revenue miss and reduced sales guidance appears to have driven investor selling pressure during the session.