LeaderPortfolio
Yass
Jeff Yass
Rank #26
UNITED STATESFinance & InvestmentsTrading, investments

Jeff Yass

Net Worth
$67.435B
0% (24h)
Jeff Yass is an American billionaire businessman, currently ranked as the 25th richest person globally, with a net worth of $65.7 billion as of December 2025. His wealth primarily stems from his co-founding and managing the Susquehanna International Group (SIG), a major player in trading and investments. Yass, a registered Libertarian, also gained prominence as a significant political donor, contributing millions to conservative causes and Republican candidates. His investments extend to companies like TikTok, where he is a major shareholder. Yass, who lives in Haverford, Pennsylvania, is known for his strategic acumen, which he applied to his early career as a professional gambler, and now to his high-volume options trading.

The Full Dossier

Early Life

Jeffrey Steven Yass was born in July 1958 in Queens, New York City, to a middle-class Jewish family. He attended public schools in Queens and graduated from Bayside High School in 1975. Yass then pursued a Bachelor of Science in mathematics and economics from Binghamton University. He later undertook graduate studies in economics at New York University, although he did not complete the program.

Rise to Success

Yass's career began with an interest in high-stakes decision-making, which he initially explored at the poker tables, and horse betting. In the early 1980s, Yass co-founded Susquehanna International Group (SIG) with five friends from Binghamton University. With the backing of billionaire trader Israel Englander, Yass entered the Philadelphia Stock Exchange. SIG evolved into a leading trading firm, specializing in rapid-fire, computer-driven trades in options and other securities. The firm is known for its innovative approach to training, including using poker tournaments to sharpen traders' skills.

Key Business Strategies

Susquehanna International Group's success is attributed to its expertise in options trading and market making. Yass's approach incorporates game theory and probability, drawing parallels between poker and financial markets. The firm has invested in a variety of private companies globally, including TikTok parent ByteDance, which is its most valuable holding.

Philanthropy

Jeff Yass, along with his wife Janine, is a supporter of school choice, donating tens of millions of dollars to education reform efforts.

Career Timeline

2025

Forbes Ranking

Ranked #25 on the Forbes Billionaires list, with a net worth of $65 billion

1987

Expanded SIG

Cofounded Susquehanna with a handful of partners; it's now a giant in options trading and making markets, with more than 3,000 employees worldwide.

1981

Began Trading on the Philadelphia Stock Exchange

Began trading on the Philadelphia Stock Exchange.

1970s

Co-founded Susquehanna International Group (SIG)

Co-founded SIG with five friends while at Binghamton University.

Philanthropic Impact

Education$XB

School Choice Initiatives

Donated tens of millions of dollars to school choice initiatives alongside his wife, Janine Yass.

Education$20M+

Yass Prize

Founded the Yass Prize for Sustainable, Transformational, Outstanding, and Permissionless (STOP) education, which awarded over $20 million to innovative education models in 2022.

Education$100M

University of Austin

Donated $100 million to the University of Austin in November 2025, the largest donation the institution has received since its founding.

Wealth Trajectory