Apple’s stock sours, Microsoft’s soars. Say what?!

FILE- In this May 11, 2017, file photo, members of a design team at Cirque du Soleil demonstrate use of Microsoft's HoloLens device in helping to virtually design a set at the Microsoft Build 2017 developers conference in Seattle. Microsoft is threatening to overtake Apple as the world’s most valuable publicly traded company. The market closed Tuesday, Nov. 27, with Microsoft just behind Apple. (AP Photo/Elaine Thompson, File)

Wall Street investors are enamoured with a newly emergent tech company. 

It has nothing to do with posting selfies or finding a soul mate. The company is instead making billions of dollars selling cloud-computing and other technical services to offices around the world.