Why United Natural Foods Stock Tumbled This Week

It was a rough week for United Natural Foods (NYSE: UNFI) as shares of the organic grocery wholesaler tumbled after it posted disappointing bottom-line results in its fiscal third-quarter earnings report and slashed its full-year guidance. United Natural Foods, which sells organic products to Amazon's Whole Foods and other customers, reported top-line results that were in line with expectations. Inflation and new business was the reason for the revenue growth, as the company continues to add new customers and expand relationships with existing customers.