Gates joins Bezos in $100-bn club

Bloomberg tracks the fortunes of some 2,800 billionaires. Of those, 145 are worth at least $10 billion, making them decabillionaires. Now, the world contains two centibillionaires simultaneously.

Microsoft Corp. co-founder Bill Gates, once the world’s richest person, has again eclipsed the $100 billion threshold, joining Amazon.com Inc.s Jeff Bezos in the exclusive club, according to the Bloomberg Billionaires Index.

Gates’s fortune, now $100 billion on the nose, hasn’t reached such heights since the dot-com boom, when Bezos was only beginning his march up the world’s wealth rankings. The Amazon founder is now worth $145.6 billion, having added $20.7 billion this year alone, while Gates has gained $9.5 billion.