Amazon boss Jeff Bezos added US$3.3 billion ($4.8b) to his fortune today in after-hours trading of the e-commerce giants' shares, Bloomberg reports.
The move puts him less than US$5b away from becoming the world's richest person, Bloomberg said.
Bezos saw his fortune surpass US$80b for the first time, according to the Bloomberg Billionaires Index.
Amazon.com Inc.'s unbroken 20-year streak of double-digit revenue growth shows no sign of slowing this year, helped by an influx of online shoppers who are abandoning stores and new business for its cloud-computing division.
The company projected sales that may beat estimates in the current quarter, reinforcing its message to investors that big spending on warehouses that hold inventory, movies that engage customers and devices that dazzle are all part of a winning formula.