Jeff Bezos became the richest man in the world Friday morning, after adding nearly $7 billion to his wealth overnight.



With Amazon's share price surging Friday morning after its earnings report, Bezos's wealth shot up to more than $90 billion, according to calculations by CNBC and data from the Bloomberg Billionaires Index. That put Bezos past Bill Gates to become the richest man in the world.

Gates also added to his fortune Friday morning with the rise in Microsoft stock after its earnings. But his gain of around $550 million put his fortune at $88.5 billion — not enough to stay ahead of Bezos.

It will be a horse race throughout the day, however. If Microsoft goes up more, or if Amazon slips after the stock starts trading, Bezos could fall back to No. 2.



This isn't Bezos' first time as numero uno. He became the richest man for the first time in July – but his reign only lasted a day. On July 27, Amazon's share price topped $1,050 and Bezos' paper fortune soared past $90 billion. But after Amazon's share price slipped, Bezos fell back to second place behind Gates.