David Duffield Net Worth
Source of wealth: Business software
$11.36B
−$265.8M(−2.3%) today
Live · · Forbes real-time
David Duffield's net worth is $11.36 billion as of November 7, 2026, according to Forbes' real-time data, which makes David Duffield the 304th richest person in the world.
Lost since you opened this page
$0.00⏱ 00:00:00 on this page$50.21 per second · based on net worth growth
Spend David Duffield's money →How much does David Duffield lose per second, hour and day?
Per second
$50.21
Per minute
$3,012
Per hour
$180,741
Per day
$4.34M
Per week
$30.36M
Per year
$1.58B
Basis: Forbes 2025 World's Billionaires list → Forbes Real-Time Billionaires. How we calculate this
How did David Duffield get so rich?
David Duffield, whose fortune comes from Business software, has an estimated net worth of $11.36 billion. That ranks 304th on Forbes' live list of the world's billionaires. Citizenship: United States (based in Incline Village, Nevada).
Since April 2025, when Forbes measured it at $13.9 billion, David Duffield's fortune has shrunk by $2.54 billion — an average of $50.21 per second, or $4.34M per day lost.
David Duffield's net worth was $7.4 billion on Forbes' 2015 list, so it has grown about 1.5x since then.
David Duffield net worth history (2015–2026)
| Year | Net worth | Change |
|---|---|---|
| 2026 | $8.7B | −$5.2B |
| 2025 | $13.9B | −$200M |
| 2024 | $14.1B | +$3.9B |
| 2023 | $10.2B | −$2.7B |
| 2022 | $12.9B | −$600M |
| 2021 | $13.5B | +$6B |
| 2020 | $7.5B | −$4.3B |
| 2019 | $11.8B | +$4B |
| 2018 | $7.8B | +$1.1B |
| 2017 | $6.7B | +$2.3B |
| 2016 | $4.4B | −$3B |
| 2015 | $7.4B | — |
Ranked near David Duffield
| # | Name | Net worth | Today | Per second | Country |
|---|---|---|---|---|---|
| 301 | Michael Sabeloil & gas | $11.42B | +$9.85M(+0.1%) | $45.85/s | United States |
| 301 | Robert Penderoil & gas | $11.42B | +$9.85M(+0.1%) | $45.85/s | United States |
| 303 | Ken LangoneInvestments | $11.41B | −$123.5M(−1.1%) | $41.83/s | United States |
| 304 | David DuffieldBusiness software | $11.36B | −$265.8M(−2.3%) | −$50.21/s | United States |
| 305 | Randa Duncan WilliamsPipelines | $11.33B | +$71.51M(+0.6%) | $40.12/s | United States |
| 306 | Charles ButtSupermarkets | $11.32B | — | $10.38/s | United States |
| 307 | Carrie Perrodo & familyOil | $11.29B | — | $33.51/s | France |
Compare David Duffield with…
David Duffield net worth: FAQs
What is David Duffield's net worth?
David Duffield's net worth is $11.36 billion as of November 7, 2026, according to Forbes' real-time data, which makes David Duffield the 304th richest person in the world.
How much does David Duffield make per second?
David Duffield is currently losing money on paper: Since April 2025, when Forbes measured it at $13.9 billion, David Duffield's fortune has shrunk by $2.54 billion — an average of $50.21 per second, or $4.34M per day lost. Wealth figures move with share prices, so the rate changes daily.
How did David Duffield make their money?
The main sources of David Duffield's wealth are: Business software. Forbes classifies the fortune as self-made.
How much did David Duffield's net worth change today?
David Duffield's net worth fell by $265.8 million compared with the previous trading day, according to Forbes' real-time estimate on November 7, 2026.
How long would it take an average person to earn David Duffield's net worth?
A typical full-time US worker earning about $63,128 a year would need roughly 179,987 years to earn David Duffield's fortune — without spending a cent.
How old is David Duffield?
David Duffield is 86 years old and is a citizen of United States.
Sources
- Net worth: Forbes Real-Time Billionaires (source), refreshed every 15 minutes.
- History: Forbes World's Billionaires lists, 2015–2026.
- Per-second figures are averages. See our methodology.