Microsoft

CEO: Satya Nadella

Dec. 30, 2016: $62.17

March 31, 2017: $65.86

Change: +5.94%

Microsoft began the new year just weeks after wrapping up its blockbuster acquisition of LinkedIn, the social media network for professionals, for $26.2 billion. It was the biggest acquisition in the company's history.

In January Microsoft named Kevin Scott, LinkedIn's senior vice president of engineering and operations, to be Microsoft's new chief technology officer.

In January Microsoft reported that in its fiscal 2017 second quarter (ended Dec. 31) revenue was $24.09 billion, up more than 1 percent from $23.80 in the same quarter one year before. Net income was $5.20 billion, up 3.6 percent from $5.02  billion one year earlier.