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Jeff Bezos Image Credit: Bloomberg

New York: Jeff Bezos is the richest person in modern history.

The Amazon.com Inc. founder’s net worth cracked $150 billion (Dh550 billion) in New York on Monday, according to the Bloomberg Billionaires Index. That’s about $55 billion more than Microsoft Corp. co-founder Bill Gates, the world’s second-richest person.

Bezos, 54, also has topped Gates in inflation-adjusted terms. The $100 billion mark that Gates hit briefly in 1999 at the height of the dot-com boom would be worth about $149 billion in today’s dollars. That makes the Amazon chief executive officer richer than anyone else on earth since at least 1982, when Forbes published its inaugural wealth ranking.

Bezos crossed the threshold as Amazon was preparing to kick off its 36-hour summer sales event, Prime Day, which got off to a rocky start as glitches struck the firm’s website and mobile app.

Shares of the company, which had climbed to a record $1,841.95 earlier Monday, pared gains on the news, closing up 0.5 per cent at $1,822.49. Bezos’s stay above $150 billion may be short-lived. The stock slipped below $1,800 in extended trading after Netflix Inc. posted disappointing results, rattling tech investors.

His net worth has soared by $52 billion this year, which is more than the entire fortune of Alibaba Group Holding Ltd. Chairman Jack Ma, Asia’s wealthiest person. It also puts Bezos’s personal fortune within spitting distance of the $151.5 billion controlled by the Walton family, the world’s richest dynasty.