Much of Bezos' wealth is tied to Amazon stocks. It holds approximately 57 million shares, or about 12% of the company. Its net worth lost about $ 3 billion after Amazon shares fell about 2% on Friday's trading. This is a sharp recovery from trading on Thursday, when it was up 9%.
Meanwhile, Gates has earned $ 17 billion so far, according to Bloomberg. It owns approximately 1% of Microsoft, up 40% this year. Amazon shares are up 17% year over year.
The two have to watch out for French billionaire Bernard Arnaud. He is the only other person on the Forbes list worth more than $ 100 billion. In July, Executive Director of Luxury Goods Manufacturer LVMH ( LVMHF ) briefly outpaced Gates' second place.
1; CNN Business's Paul R. Lamonica contributed to this report.