It's been an incredible year for Jeff Bezos.
In October, Bezos cemented his position as the world's richest person. And just last week, after a nearly 20% projected increase in Amazon's Black Friday sales, he became the first person to reach $100 billion in net worth since Bill Gates did so in 1999.
This week, the Amazon founder and CEO reached another milestone.
According to Bloomberg's billionaire index, the 53-year-old has made $35.7 billion year-to-date, more than anyone else in 2017. That's $9.9 billion more than the next guy on the list, Evergrande group chair Hui Ka Yan in China, and $10.2 billion more than Facebook's Mark Zuckerberg.
Amazon shares have climbed more than 54% this year, as investors continue to see almost unlimited potential for the company's growth.
In a note ahead of Amazon's re:Invent conference this week, a Goldman Sachs analyst said he thinks Amazon's current stock price, now at $1,197, could rise 20% by year's end—meaning Bezos is likely to become even wealthier before the year's end.
It's been a banner year for American tech titans: Zuckerberg, Google's Larry Page, and Oracle's Larry Ellison have each made more than $10 billion in 2017. Zuckerberg is now just a few billion dollars away from surpassing Warren Buffett as the world's third-richest person.