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Billionaire Profile
Joel Greenberg
Global Rank
#1379

Image: Office of the Seminole County Tax Collector | Public domain | via Wikimedia Commons

Joel Greenberg

CEO, Trading
UNITED STATES
Real-Time Net Worth
$3.003B
Estimated based on Trading stock value as of March 6, 2026
0% (24h)
Age
68
Source
Trading, investments
Industry
Finance & Investments
Citizenship
UNITED STATES

Biography

Joel Greenberg is an American billionaire businessman, co-founder of Susquehanna International Group (SIG), and a key figure in quantitative trading. His estimated net worth is $2.9 billion as of January 2026, largely stemming from his 3% ownership in SIG, a leading firm in options trading and global investments. Greenberg's career includes serving as SIG's chief operating officer until his retirement in 2016. His wealth has grown due to SIG's innovative trading strategies and diversification into private equity. Greenberg is married to Marcy Gringlas and has three children.

Fact Checked
Verified by Editorial Team
Live Data
Updated 3/6/2026

Wealth Over Time

In-Depth Profile

Early Life

Joel Kenneth Greenberg was born in 1957 or 1958. He earned a bachelor's degree from Binghamton University and a Juris Doctor degree from Columbia Law School.

Rise to Success

In 1987, Greenberg co-founded Susquehanna International Group (SIG) with Jeff Yass and others. He served as the Chief Operating Officer. SIG is one of Wall Street's largest quantitative trading firms, known for its success in options trading, equities, and global investments. He owns approximately 3% of SIG, which contributed significantly to his wealth.

Key Business Strategies

SIG's pioneering use of probabilistic and game-theory-based trading strategies has enabled consistent returns and diversification into private equity and venture capital. This has positioned the firm as a leader in the financial industry.

Philanthropy

Joel and his wife, Marcy Gringlas, have donated over $2 million to the USC Shoah Foundation through their Seed the Dream Foundation. Marcy is a longtime donor and member of the USC Shoah Foundation board of councilors.

Career Milestones

1987

Co-founded Susquehanna International Group (SIG)

Co-founded SIG, a quantitative trading firm.

2016

Retired as Chief Operating Officer

Retired from his position as Chief Operating Officer of SIG.

Philanthropy & Social Impact

Education

USC Shoah Foundation

$2M+

Donated over $2 million through the Seed the Dream Foundation.

Controversies & Challenges

2020

Criminal Charges and Plea Deal

Pled guilty to six federal charges including sex trafficking of a minor and wire fraud.

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