Members of this elite group have amassed 12-digit fortunes by owning huge amounts of stock in some of the world's most valuable companies. Most are founders and either current or former CEOs, and some, such as Warren Buffett, would be much richer if they didn't give billions to charity.

There may be only 17 centibillionaires, but their combined wealth is around $2.5 trillion, according to the Bloomberg Billionaires Index. They're worth more than Amazon or Google-parent Alphabet, which command market values of around $2 trillion each.

All but one of them have grown richer this year, adding a net $504 billion to their collective fortunes. Oracle ($481 billion), Mastercard ($476 billion), and Home Depot ($404 billion) are all worth less than that.

Walmart heirs Jim, Rob, and Alice Walton joined the exclusive group in September, thanks to their net worth surging by over $30 billion this year. Here's the list of individuals worth at least $100 billion, showing Bloomberg's estimate of their net worth at the time of publication, how much it's changed this calendar year, and the source of their wealth.

All figures are correct as of October 21, 2024

1. Elon Musk

Net worth: $241 billion

YTD change in wealth: +$11.6 billion

Source of wealth: Tesla and SpaceX stock

2. Jeff Bezos

Net worth: $200 billion

YTD change in wealth: +$23.3 billion

Source of wealth: Amazon stock Business Insider USA

3. Mark Zuckerberg

Net worth: $187 billion

YTD change in wealth: +$59.2 billionSource of wealth: Meta stock

4. Larry Ellison

Net worth: $152 billion

YTD change in wealth: +$29.2 billion

Source of wealth: Oracle and Tesla stock

5. Bernard Arnault

Net worth: $192 billion

YTD change in wealth: -$15.6 billion

Source of wealth: LVMH stock

6. Bill Gates

Net worth: $158 billion

YTD change in wealth: +$17.0 billion

7. Larry Page

Net worth: $147 billion

YTD change in wealth: +$20.5 billion

Source of wealth: Alphabet stock

8. Warren Buffett

Net worth: $140 billion

YTD change in wealth: +$20.5 billion

Source of wealth: Berkshire Hathaway stock

9. Steve Ballmer

Net worth: $145 billion

YTD change in wealth: +$14.3 billion

Source of wealth: Microsoft stock

10. Sergey Brin

Net worth: $140 billion

YTD change in wealth: +$20.4 billion

Source of wealth: Alphabet stock

11. Jensen Huang

Net worth: $125 billion

YTD change in wealth: +$81.5 billion

Source of wealth: Nvidia stock

12. Michael Dell

Net worth: $106 billionYTD change in wealth: +$27.7 billion

Source of wealth: Dell stock

13. Amancio Ortega

Net worth: $102 billion

YTD change in wealth: +$14.6 billion

Source of wealth: Inditex stock

14. Mukesh Ambani

Net worth: $111 billion

YTD change in wealth: +$14.8 billion

Source of wealth: Reliance Industries

15. Jim Walton

Net worth: $101 billion

YTD change in wealth: +$28.1 billion

Source of wealth: Walmart stock

16. Rob Walton

YTD change in wealth: $28.1 billion

Net worth: $99.3 billion

Source of wealth gain: Walmart stock

17. Alice Walton

Net worth: $101 billion

YTD change in wealth: +$30.6 billion

Source of wealth: Walmart stock

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