Mark Zuckerberg vs David Duffield: who is richer?
Mark Zuckerberg is richer, with a net worth of $209.7 billion versus David Duffield's $11.36 billion — a gap of $198.4 billion, or 18 times as much (as of November 7, 2026).
Mark Zuckerberg
Source of wealth: Facebook
$209.7B
David Duffield
Source of wealth: Business software
$11.36B
Side-by-side
| Mark Zuckerberg | David Duffield | |
|---|---|---|
| Net worth | $209.7B | $11.36B |
| World rank | #5 | #304 |
| Makes per second | −$124 | −$50.20 |
| Makes per day | −$10.69M | −$4.34M |
| Today | +$1.72B | −$265.8M |
| Source of wealth | Business software | |
| Age | 42 | 86 |
| Country | United States | United States |
Net worth by year
| Year | Mark Zuckerberg | David Duffield |
|---|---|---|
| 2026 | $222B | $8.7B |
| 2025 | $216B | $13.9B |
| 2024 | $177B | $14.1B |
| 2023 | $64.4B | $10.2B |
| 2022 | $67.3B | $12.9B |
| 2021 | $97B | $13.5B |
| 2020 | $54.7B | $7.5B |
| 2019 | $62.3B | $11.8B |
| 2018 | $71B | $7.8B |
| 2017 | $56B | $6.7B |
| 2016 | $44.6B | $4.4B |
| 2015 | $33.4B | $7.4B |
Frequently asked questions
Who is richer, Mark Zuckerberg or David Duffield?
Mark Zuckerberg is richer, worth $209.7 billion compared with David Duffield's $11.36 billion. The difference is $198.4 billion.
Who makes more per second, Mark Zuckerberg or David Duffield?
David Duffield makes more: about −$50.20 per second versus −$124. Per day that's −$4.34M vs −$10.69M.
How many times richer is Mark Zuckerberg than David Duffield?
Mark Zuckerberg has about 18 times David Duffield's net worth.