What is the most expensive technology company in the world?

 High-tech companies in 2015 strengthened leadership in the list of the largest by market capitalization in the U.S. and the world: Apple Inc. retained the top spot, but Alphabet Inc. (parent holding company and Google Android) have significantly closed the gap, for the first time being in second place.
 
 Apple started 2015 with a market capitalization of about $640 billion, increasing in the spring to $750 billion, however, in the last session of the year the market price of the most expensive companies of the world fall below $600 billion because of concerns about demand for the iPhone in the short term.
 
 Meanwhile, Alphabet this year has made a significant leap forward, increasing capitalization by 45% to more than $530 billion.
 
 A remarkable recovery in recent months and demonstrated Microsoft Corp., escaped on the third place with a market capitalization of nearly $450 billion of the company’s Shares has risen this year to marks that were last seen 15 years ago when she owned the title of largest in the world.
 

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