Mark Zuckerberg vs John Arnold: who is richer?
Mark Zuckerberg is richer, with a net worth of $209.7 billion versus John Arnold's $2.79 billion — a gap of $207 billion, or 75 times as much (as of November 7, 2026).

Mark Zuckerberg
Source of wealth: Facebook
$209.7B
John Arnold
Source of wealth: Hedge funds
$2.79B
Side-by-side
| Mark Zuckerberg | John Arnold | |
|---|---|---|
| Net worth | $209.7B | $2.79B |
| World rank | #5 | #1490 |
| Makes per second | −$124 | −$2.24 |
| Makes per day | −$10.69M | −$193,133 |
| Today | +$1.72B | $0 |
| Source of wealth | Hedge funds | |
| Age | 42 | 52 |
| Country | United States | United States |
Net worth by year
| Year | Mark Zuckerberg | John Arnold |
|---|---|---|
| 2026 | $222B | $2.8B |
| 2025 | $216B | $2.9B |
| 2024 | $177B | $3.3B |
| 2023 | $64.4B | $3.3B |
| 2022 | $67.3B | $3.3B |
| 2021 | $97B | $3.3B |
| 2020 | $54.7B | $3.3B |
| 2019 | $62.3B | $3.3B |
| 2018 | $71B | $3.3B |
| 2017 | $56B | $3B |
| 2016 | $44.6B | $2.5B |
| 2015 | $33.4B | $2.6B |
Frequently asked questions
Who is richer, Mark Zuckerberg or John Arnold?
Mark Zuckerberg is richer, worth $209.7 billion compared with John Arnold's $2.79 billion. The difference is $207 billion.
Who makes more per second, Mark Zuckerberg or John Arnold?
John Arnold makes more: about −$2.24 per second versus −$124. Per day that's −$193,133 vs −$10.69M.
How many times richer is Mark Zuckerberg than John Arnold?
Mark Zuckerberg has about 75 times John Arnold's net worth.