Thor Industries

U.S. stocks closed lower Monday, as the Dow Jones Industrial Average lost 130 points to 13880, the Standard & Poor's 500 Index fell 17 points to 1496, and the Nasdaq Composite slipped 1.5% to 3131. Among the companies with shares actively trading after hours are Idenix Pharmaceuticals Inc. (IDIX), Yum Brands Inc. (YUM) and Hologic Inc. (HOLX).Idenix said it will discontinue its clinical development program for two of its investigational treatments for hepatitis C, after the U.S. Food and Drug Administration said the treatments would remain on clinical hold. Shares fell 3% to $4.59 after hours Monday.Yum Brands' fourth-quarter earnings slipped 5.3% as the fast-food chain's same-store sales in China were hurt by negative publicity from a government review of poultry supplies there, though same-store sales in its U.S. business improved. Shares slipped 5.9% to $60.18 after hours as the company said it no longer expects earnings-per-share growth this year due to continued negative same-stor...

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