Thomas Peterffy vs Mark Zuckerberg
Real-time net worth, career, and company comparison — updated May 2026.
Wealth at a Glance
Net worth gap: $111.1B — equivalent to 53% of Mark's total wealth.
Tale of the Tape
Career Highlights
Thomas Peterffy
- 1965Immigrated to the U.S.Emigrated to the United States from Hungary.
- 1977Purchased AMEX SeatPurchased a seat on the American Stock Exchange and became a market maker.
- 1983Pioneered Handheld ComputersDeveloped the first handheld computers for trading.
- 1993Founded Interactive BrokersFounded Interactive Brokers, an online discount brokerage firm.
- 2019Stepped Down as CEOStepped down as CEO of Interactive Brokers.
Mark Zuckerberg
- 2004Founded FacebookCo-founded Facebook while at Harvard University.
- 2008Became a BillionaireBecame a billionaire at age 23.
- 2012Facebook IPOTook Facebook public, making it one of the largest IPOs in history.
- 2021Meta RebrandingFacebook rebranded to Meta Platforms, Inc., focusing on the metaverse.
Net Worth History
| Year | Thomas | Mark | Leader |
|---|---|---|---|
| 2022 | $23.3B | $65B | Mark |
| 2023 | $25.3B | $170B | Mark |
| 2024 | $83.4B | $224.1B | Mark |
| 2025 | $82.9B | $222B | Mark |
| 2026 | $96.618B | $207.68B | Mark |
The Verdict: Mark Zuckerberg vs Thomas Peterffy
As of May 2026, Mark Zuckerberg leads this comparison with a net worth of $207.68B, placing at #6 in the global rankings. Thomas Peterffy follows at $96.618B — a gap of $111.1B.
The two leaders come from distinct industries — Finance & Investments for Thomas Peterffy and Technology for Mark Zuckerberg. Comparing them is therefore a comparison of different underlying asset types, growth rates, and risk profiles rather than a simple head-to-head within the same market.
Thomas Peterffy is 81 years old versus 41 for Mark Zuckerberg, a difference of 40 years. Age context matters in wealth comparisons: a younger billionaire at the same net worth has had less time to accumulate — and in many cases represents a higher compound annual growth rate on their wealth.
Net worth figures are estimates calculated from public shareholding disclosures, stock price data, and reported asset values. See our full methodology.
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Net worth estimates updated daily from public financial disclosures. Methodology · Report an error