Will North Carolina win the bidding for a second Amazon headquarters and thus become a possible home-at-times for the world’s richest man?

Maybe. North Carolina is one of more than 230 bidders for the new Amazon headquarters. A winner won’t be declared until 2018. What is known, however, is that Jeff Bezos, Amazon’s CEO and founder, keeps getting richer.

If you’re one of the millions shopping on Amazon on Black Friday, you helped make Bezos a $100 billion man.

So who is he?

Bloomberg’s Billionaire Index offers some insight.

A self-made billionaire, he is 53 years old.

In addition to founding Amazon, Bezos has demonstrated skills as an investor, having been an early investor in Google, Airbnb and Business Insider.

Amazon is much more than an ecommerce supermarket, having recently acquired Whole Foods. Amazon also operates websites Zappos and Audible. Its web services (AWS) is a global leader.

And Amazon continues to deliver dividends.

The world’s richest: Bloomberg’s top 10 ranking

As of Nov. 27 before the markets open:

1. Jeff Bezos, $100B
2. Bill Gates, $89.1B
3. Warren Buffett, $78.7B
4. Amancio Ortega, $75.9B
5. Mark Zuckerberg, $75.3B
6. Carlos Slim, $63.7B
7. Bernard Arnault, $62.4B
8. Larry Ellison, $54.3B
9. Larry Page, $52.2B
10. Sergey Brin, $50.8B

Source: Bloomberg

Investor optimism about sales at the online leader has sent its stock up 58 percent so far year, and 5 percent in just this past week. The 81 million shares Bezos owned according to documents filed in April are worth $96 billion at Friday’s closing price. Bezos also owns The Washington Post through a holding company.

Amazon stock climbed 2.5% on Friday to put Bezos over the top. The stock got a lift from reports that online shopping on Thanksgiving and Black Friday jumped 18% compared with last year. Bezos made almost $2.4 billion on Friday alone and some $34 billion so far this year.

Bloomberg News said Friday that Bezos has broken the $100 billion mark in wealth — the first time a billionaire surpassed that mark since Microsoft co-founder Bill Gates did it in 1999.

Forbes, the other service, shows him just scraping by, with $99.6 billion to his name.

Analysts at Bain expect Amazon to take half of the holiday season’s sales growth this year.

Bezos owns 78.9 million shares of Amazon, worth $93.6 billion. That doesn’t account for all his holdings, although the two other highest-profile companies he owns – The Washington Post and space tourism company Blue Origin – don’t move the needle much by comparison.

Bezos grabbed the title of world’s richest person in July, when he briefly passed Gates. He moved back ahead of Gates in October. The Microsoft founder is now worth a mere $89 billion, according to Forbes and Bloomberg.

Gates is believed to be the only other person to reach $100 billion. That was in 1999, when the internet stock bubble briefly put him over the mark.