By:  Martin Gaston Sony’s shares jumped up 8 percent immediately after rival hardware maker Microsoft formally unveiled its next-generation Xbox One console. At time of writing, Sony shares on the New York Stock Exchange are up 8.35 percent on where they were before Microsoft took to its custom-built stage at its Redmond campus to announce the successor to the Xbox 360. Sony shares are currently … Continue reading Sony shares leap 8 percent after Xbox One announcement