Jeff Bezos’ net worth surpasses 100 billion dollars

Bloomberg has been keeping an eye on Amazon CEO Jeff Bezos’ net worth and notes that today, for the first time, it has exceeded $100 billion. That’s 100,000,000,000 dollars. He was already definitively the richest person in the world after spending part of 2016 trading places with Bill Gates. Gates, by the way, was the last person to reach that stratospheric level of wealth, back in 1999.

Bezos’ fortune is swelling mainly because Amazon’s stock has been doing so well this year. It was a Black Friday Amazon stock price bump that pushed him over the 12-figure mark today. That stock bump was entirely justified, as one firm estimates that Amazon may have accounted for half of all online sales for Black Friday. Half.

Slivers of his net worth (to him) are being spent on expensive (to normal humans) things: $250 million on the Washington Post back in 2013. A billion dollars a year in stock to fund Blue Origin and its rockets. He converted a billion dollars worth of stock into cash earlier this month.