GameStop Plunges on Lower Guidance – Analyst Blog By Scalper1 | January 15, 2014 0 Comment Scalper1 News Shares of GameStop Corp. ( GME ) plunged roughly 20% yesterday on lowered earnings outlook as demand for Microsoft Corp. ‘s ( MSFT ) Xbox 360 and Sony Corp. ‘s ( SNE ) PlayStation 3 software was Scalper1 News Scalper1 News Related posts: GameStop Investors Needn't Panic Over Playstation Now Just Yet Microsoft admits Xbox One is in 2nd place behind PS4 GameStop guides lower on holiday earnings despite PS4, Xbox One Xbox One, PS4 combine for record game hardware sales