Gates's net worth rose by US$5.6 billion, even after he donated US$4.6 billion of Microsoft stock to the Bill & Melinda Gates Foundation in August.
Mr Bezos, 53, who set up Amazon as an online bookstore in 1994, was worth $93.8 billion when markets closed in NY last night, eclipsing Bill Gates, the Microsoft co-founder, who was worth $88.7 billion, according to Bloomberg Billionaires Index.
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Bezos is the founder and largest stakeholder in Amazon, and his total net worth is greater than $83 billion, according to the Bloomberg Billionaires Index. Amazon's share price was at $1,096 as of Friday afternoon, boosting Bezos' fortune by $7 billion overnight. His wealth briefly eclipsed that of Gates, the Microsoft Corp.co-founder, on an intraday basis on July 27, but Amazon shares ended that day lower, leaving Bezos at No. 2. Microsoft stock climbed about $6 a share, so Gates added nearly $600 million to his personal wealth.
Amazon CEO Jeff Bezos is now the richest man in the world, and he has the mammoth online retailer he founded to thank for his fortune. More than 200 cities and regions have submitted bids to become the home for HQ2.