Whole Foods Plunges on Sales Miss; Keurig Roasted on Guidance

Whole Foods Market (WFM) was the worst performer on the S&P 500 after quarterly sales disappointed. The supermarket operator also announced plans to launch a low-cost chain stocked with cheaper products. Keurig (GMCR) was seeing big losses after missing forecasts on its top- and bottom-line and cutting guidance. Alibaba (BABA) jumped after reporting strong sales in a better-than-expected quarter. Yahoo! (YHOO), which owns a $39 billion stake in the company, was pulled higher on the earnings report. Stocks had turned positive, though moves were shaky as bond markets sold off in the U.S. and Europe.