Whitney Tilson has a new short (WING, LL, EXAC)

Hollis Johnson/Business Insider Whitney Tilson has a new short: Wingstop. The founder of Kase Capital,who bet against Lumber Liquidators on allegations that the hardwood-flooring retailer sold toxic products, revealed his new short Tuesday at the Robin Hood Conference. Shares of the chicken-wing chain fell by as much as 3% in regular trading. In a slide deckon his Website, Tilson listed five reasons why he was short the stock, or betting that it would fall. First, he foundthe valuation to be "ab...