Dolby Laboratories (NYSE:DLB – Get Free Report)‘s stock had its “buy” rating restated by equities researchers at Rosenblatt Securities in a report released on Friday,Benzinga reports. Weiss Ratings restated a “hold (c-)” rating on shares of Dolby Laboratories in a research report on Monday, December 29th. Finally, Wall Street Zen raised Dolby Laboratories from a “hold” rating to a “buy” rating in a research note on Monday, January 5th. Get Dolby Laboratories alerts:Get Our Latest Stock Analysis on Dolby LaboratoriesDolby Laboratories Price PerformanceShares of DLB opened at $62.89 on Friday. Recommended StoriesReceive News & Ratings for Dolby Laboratories Daily - Enter your email address below to receive a concise daily summary of the latest news and analysts' ratings for Dolby Laboratories and related companies with MarketBeat.com's FREE daily email newsletter.