⬅ # 450 Mark Stevens|# 452 John Overdeck

# 451 David Siegel 


Real Time Net Worth
as of 4/20/2024
-$8.6M (-0.13%)

# 451 David Siegel 


Real Time Net Worth
as of 4/20/2024
-$8.6M (-0.13%)
OccupationCo-Founder & Co-Chair, Two Sigma
Source of WealthHedge Funds
ResidenceScarsdale, New York
Marital StatusMarried
EducationPh.D, Massachusetts Institute of Technology; BS, Princeton University
Age-Adjusted Net Worth$5.65B
David Siegel
David Siegel
United States
Net worth: $6.47B

Self-Made Score 

Wealth History

Hover or tap to reveal net worth by year
Loading Chart



David Mark Siegel was born in 1961 in the Bronx, New York.
He displayed a keen interest in computer science from a young age, building memory and logic boards by age 12.
Siegel graduated from Princeton University with a degree in electrical engineering and computer science.
He later earned a Ph.D. in computer science from the Massachusetts Institute of Technology (MIT), where he conducted research at the Artificial Intelligence Laboratory.
Before co-founding Two Sigma, Siegel worked at hedge funds D.E. Shaw & Co. and Tudor Investment Corporation, where he served in various capacities including Chief Information Officer and Managing Director.
Siegel co-founded Two Sigma in 2001, alongside John Overdeck and Mark Pickard.

Career Highlights

Siegel founded FarSight Financial Services, the first integrated personal financial services website, and later served as Chief Technology Officer at Tudor Investment Corporation.
In 1999, Siegel founded Blink.com, a web-based browser bookmark storage and organization service, which was later sold to the Vendare Group.
Two Sigma, founded by Siegel, applies data science and technology to financial services, managing $60 billion in assets globally as of 2019.
He encourages employees at Two Sigma to engage in outside engineering challenges and coding competitions.
Siegel supports the Data Clinic at Two Sigma, connecting data scientists with social sector projects on a pro bono basis.
As a prolific writer and speaker, Siegel frequently discusses the impact of technology on society, particularly focusing on machine learning and algorithms.


In 2011, Siegel founded the Siegel Family Endowment, which supports organizations preparing society for the impact of technology.
The endowment funds programs in areas such as digital job training, computer science education, and research on social issues related to technology.
Siegel co-founded the Scratch Foundation in 2014 to ensure the accessibility of Scratch, a free online coding community for children worldwide.
He serves on the boards of various organizations including MIT Corporation, Cornell Tech, and the Robin Hood Foundation's Learning + Tech Fund.
Siegel advocates for STEM education through organizations like New York City FIRST Robotics and Khan Academy.
He supports initiatives addressing societal challenges exacerbated by technology, such as the Aspen Institute and the Center on Information Technology Policy.

Notable Events and Challenges

In 2023, tension between co-founders John Overdeck and David Siegel led to a breakdown in their relationship, affecting company operations.
Two Sigma faced an investigation by the U.S. Securities and Exchange Commission in 2023 due to unauthorized changes to trading models.
Two Sigma's artificial intelligence challenge, Halite, gained attention in the tech community for its innovative approach to engaging coding enthusiasts.
The firm has consistently managed significant assets, experiencing growth from $8 billion in 2011 to $60 billion in 2019.
Siegel's tenure at Two Sigma has been marked by a commitment to technological innovation and social responsibility.
Two Sigma has diversified its operations, including private investments, venture capital, institutional advising, and high-frequency trading.

How long would it take you to become as rich as David Siegel?

If you started with $10,000 and invested an additional $500 each month at a 43.95% CAGR, it would take you 5 years to reach David Siegel's net worth of $6.47B.

Is this realistic? It depends how closely the VIX-TA-Macro Advanced model performs to its history in the future. Since Grizzly Bulls launched on January 1, 2022, it's returned 34.07% compared to 5.08% for the S&P 500 benchmark.

Enter data in all but one field below, then calculate the missing value

David Siegel is very wealthy, but what's stopping you from reaching that same level of success? As summarized in our five fundamental rules to wealth building, becoming wealthy in a modern capitalist economy is not complicated. There's actually only three variables:

  1. Your starting capital
  2. Your earnings after expenses
  3. The compound annual growth rate (CAGR) of your savings

Most people start with zero or very little, so if you weren't born into wealth, don't fret! The majority of the fortunate folks listed in our Grizzly Bulls’ Billionaires Index came from middle class or lower backgrounds. The most distinguishing characteristic of the group is their ability to consistently earn a high CAGR on their savings.

Every billionaire has a unique strategy to achieve high CAGR. For David Siegel, Hedge Funds is the primary source. Whether you choose to invest your savings in your own businesses or the businesses of others is not as important. The salient piece of the puzzle is ensuring that your hard-earned savings are generating sufficient CAGR to reach your long term goals.

Most people simply invest their money in index funds and call it a day. There's nothing wrong with this approach, but it guarantees relative mediocrity. To achieve greatness, you need to invest your money to earn higher than average returns. In the long run, better investors will always finish ahead of better earners.

Source: Grizzly Bulls reporting

Methodology: Grizzly Bulls' Billionaires Index is a daily ranking of the world's billionaires and richest people. Grizzly Bulls strives to provide the most accurate net worth calculations available. We pull data from public equity markets, SEC filings, public real estate records, and other reputable sources.

The index is dynamic and updates daily at the close of U.S. stock market trading based on changes in the markets, economy, and updates to Grizzly Bulls' proprietary algorithm of personal wealth calculation. Stakes in public companies are tracked daily based on the relevant closing prices of the underlying securities. Additionally, stakes in private companies, cash, real estate, and other less easily valued assets are updated periodically through careful analysis of insider transactions, comparable public company sales / EBITDA multiples, etc.

Edited by: Lee Bailey