SAN FRANCISCO (MarketWatch) -- Whole Foods Market /quotes/comstock/15*!wfmi/quotes/nls/wfmi (WFMI 42.30, +2.05, +5.09%) on Wednesday reported second-quarter profit more than doubled from a year ago, and the organic grocery chain boosted its sales and profit targets for fiscal 2010. Net income was $67.4 million, or 39 cents a share, compared with net income of $27.3 million, or 19 cents a share, in the year-earlier period. Sales rose 13% to $2.1. Analysts had forecast Whole Foods to earn 34 cents a share on sales of $2 billion, according to FactSet Research. Separately, Whole Foods named Walter Robb co-CEO to serve alongside John Mackey. Whole Foods shares closed Wednesday at $40.25.