Top Narrow Based Indexes For May 11 (ROVI, ZAGG, IPSU)

By 10:20 am, the Dow Jones Industrial Average was down 62.55 points, or 0.49%, to 12,697.81, while the broader Standard & Poor's 500 index had dropped 5.02 points, or 0.37%. The NASDAQ composite index declined 1.42 points, or 0.05%. Some of the narrow based indexes that are still afloat in the markets are Media Technology and Software Stocks, which have gained 4.7%, Computer Peripheral Stocks, up 3.2%, and Confectioners and Sugar Stocks, moving 1.9% higher as a group. In Tickerspy's Media Technology and Software complex, Rovi Corporation ROVI had surged 18%. ROVI reported upbeat Q1 earnings. The best performing Tickerspy Computer Peripheral stock has been ZAGG Incorporated ZAGG, which was up 8.4%. ZAGG lifted its 2011 sales guidance. Imperial Sugar Company IPSU is today's leading Tickerspy's Confectioners and Sugar stock, gaining 12.1%. IPSU swung to a second-quarter profit, from a loss in the year-ago quarter. Read more from Benzinga's Markets.