Amazon founder Jeff Bezos, 55, has lost his spot as the richest man in the world in a dramatic shift among the top billionaires.
Mega-CEO Bezos, who also owns the Washington Post, passed the baton onto Bill Gates, reports New York Post.
Bezos fell to the No. 2 spot after the e-commerce giant's stock price crashed 7 percent on Thursday, according to Forbes.
With his fortune now at $163.4 billion, the Amazon CEO left the title to Microsoft co-founder Bill Gates, whose net worth is $166.3 billion.
Mr Bezos first joined The Forbes 400 rich list in 1998 with a net worth of $2.47 billion, a year after Amazon went public.