Amazon Just Became the Second Company to Reach $1 Trillion. Here's How Much Jeff Bezos Is Worth Now

Just a few weeks after Apple became the world's $1 trillion company, Amazon became the second to reach the historic marker: On Tuesday, as Amazon stock inched higher, the company's market capitalization briefly rose over $1 trillion.

Jeff Bezos, the founder and CEO — who is already the world's richest man — saw his personal fortune rise on Tuesday as well.

Like most tech billionaires, Jeff Bezos's net worth rises and falls based on his company's performance in the stock market. And Bezos's fortune has been skyrocketing as Amazon shares have soared in 2018: Through most of the year thus far, Bezos's net worth has been increasing at an average of roughly $260 million per day.

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Some days are better than others for the world's richest man. According to the World's Billionaires list from Forbes, which tracks the net worth of billionaires in real time based on stock market fluctuations, Bezos added as much as $2 billion to his fortune on Tuesday morning, as Amazon's market cap topped $1 trillion.

At the close of the stock market on Friday, Jeff Bezos's net worth was estimated at $166 billion by the other major billionaire wealth tracker, the Bloomberg Billionaires Index. Bezos's fortune was measured at just under $100 billion at the start of 2018, so he is theoretically up more than $66 billion in unrealized gains so far this year.

Bezos is also nearly $70 billion richer than the second wealthiest person on the planet, Bill Gates — whose net worth has been around $98 billion lately.