Jeff Yass

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Who is Jeff Yass?

Jeff Yass Story

Jeff Yass is a prominent figure in the world of finance, known for his pioneering work in the field of options trading and his role as the founder and managing director of Susquehanna International Group (SIG).

With a net worth estimated to be billions of dollars, Yass has built a reputation as one of the most successful traders of his generation, and his impact on the trading industry cannot be overstated.

Beyond his business achievements, Yass is also well-known for his philanthropic activities, his support of libertarian causes, and his love of recreational activities such as poker and horse racing.

In this biography, we will explore Yass’ life and career in depth, examining the experiences and decisions that have led to his immense success and the legacy he has created.

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Jeff Yass Personal Info

Name: Jeff Yass
DOB: 1956
Birthplace: Philadelphia, Pennsylvania, U.S.A.
Education: Binghamton University
Wife/Partner: Janine Coslett
Hometown: Haverford, Pennsylvania
Famous As: The secretive billionaire options trader who co-founded the highly successful Susquehanna International Group.

Jeff Yass’s Early Life

Jeff Yass was born in 1955 in Philadelphia, Pennsylvania, to a middle-class Jewish family. His parents were both schoolteachers, and Yass grew up with his three siblings in a modest home in the suburbs.

From a young age, Yass displayed a keen interest in mathematics and problem-solving, often spending hours on end solving puzzles and playing strategy games.

Despite his natural talents, Yass faced some challenges growing up. He struggled with a speech impediment and was often teased by his classmates, which led him to become introverted and withdrawn. However, Yass found solace in his studies. He quickly developed a love of learning that would stay with him throughout his life.

Yass’ early life was marked by his love of mathematics, his interest in finance, and his perseverance in the face of adversity. Despite facing some challenges growing up, Yass was able to channel his talents and passions into a successful career in trading and build a lasting legacy for himself in the financial world.

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Jeff Yass’s Education

After graduating from high school in Philadelphia, Yass attended Binghamton University, where he earned a degree in mathematics in 1977.

Yass was drawn to mathematics from a young age, and his education allowed him to further develop his skills in this area. During his time at the university, Yass took courses in advanced calculus, probability theory, and game theory, which would prove to be invaluable in his future career as a trader.

In 1976, Jeff Yass took a course in financial derivatives taught by the mathematician Ed Thorp, who was known for his pioneering work in options trading. Thorp’s course introduced Yass to the concept of options trading, which involves buying and selling contracts that give the owner the right to buy or sell an underlying asset at a set price.

Yass quickly became fascinated by the potential for making money in options trading, and he began experimenting with options trading on his own.

Jeff Yass’ education at Binghamton University played a pivotal role in his success as a trader and investor. His love of mathematics and his exposure to options trading in Ed Thorp’s course set him on a path that would ultimately lead to his founding of Susquehanna International Group.

Jeff Yass’s Career

Jeff Yass’ family was supportive of his interest in finance, but they were also concerned about his safety. During the late 1970s and early 1980s, Philadelphia was experiencing a surge in violent crime, and Yass’ parents worried that their son’s work as a trader would put him in danger. Nevertheless, Yass was determined to pursue his passion, and began his career as a trader in the late 1970s, working for a small trading firm in Philadelphia.

Jeff Yass quickly developed a reputation as a skilled trader, and he became interested in the emerging field of options trading. He began experimenting with trading options on his own.

In 1987, Yass founded Susquehanna Investment Group (SIG) with several partners. The firm started out as a market maker, buying and selling options on the floor of the Philadelphia Stock Exchange. However, Yass and his team quickly saw an opportunity to expand into electronic trading, and they invested heavily in technology to develop a proprietary trading platform.

This investment paid off, and SIG quickly became one of the largest and most successful options trading firms in the world. The firm now has offices in several countries and trades in a wide range of financial products, including equities, options, futures, and fixed-income securities.

One of the keys to SIG’s success has been its focus on innovation and technology. Yass and his team have always been willing to take risks and invest in new ideas, which has allowed the firm to stay ahead of the curve in a rapidly changing trading landscape.


Yass’ leadership and vision have also played a critical role in SIG’s success. He has always been willing to take a hands-on approach to manage the firm, and he has fostered a culture of collaboration and teamwork among his employees.

Jeff Yass’ career is a testament to his willingness to take risks and his dedication to innovation and technology. His success as a trader and investor has earned him a place among the most influential figures in the world of finance.

Jeff Yass’s Net Worth

Jeff Yass is one of the wealthiest individuals in the United States, with a real-time net worth of $28.5 billion as of April 6, 2023. The vast majority of Yass’ wealth comes from his ownership stake in Susquehanna International Group (SIG), the trading firm he founded in 1987.

SIG has been highly successful under Yass’ leadership, and the firm’s proprietary trading platform and innovative approach to trading have earned it a reputation as one of the most profitable trading firms in the world. In addition to options trading, SIG trades in a wide range of financial products, including equities, futures, and fixed-income securities.

Yass’ net worth has fluctuated over the years in line with the fortunes of SIG and the broader financial markets. In the early 2000s, Yass and his partners saw their net worth increase dramatically as SIG’s profits soared. However, the financial crisis of 2008 hit SIG hard, and the firm saw its profits decline significantly.

Jeff Yass and his team at SIG have continued to innovate and adapt to changing market conditions, and the firm has seen its profits rebound in recent years. This has helped to boost Yass’ net worth, making him one of the wealthiest people in the country.

Jeff Yass’s Personal Life

Jeff Yass is known for being driven, innovative, and willing to take risks. These qualities have been instrumental in his success as a trader and entrepreneur, and they have helped him to build one of the most successful trading firms in the world.

In terms of hobbies and interests, Yass is known for being an avid poker player and has participated in high-stakes poker games in his spare time. He is also interested in sports, and he is a fan of the Philadelphia Eagles and the Philadelphia Phillies.

Jeff Yass is a complex and multifaceted individual, with a strong dedication to his family, his business, and his philanthropic activities. His innovative approach to trading and his willingness to take risks has made him one of the most successful traders and entrepreneurs of his generation.

Jeff Yass’s Parents

It is known that Yass’ father was a salesman who worked for a textile company, and his mother was a homemaker. Yass has credited his parents with instilling in him a strong work ethic and a sense of responsibility from an early age.

Despite their modest means, Yass’ parents placed a strong emphasis on education, and they encouraged their children to pursue higher education and professional careers. This emphasis on education would have a significant impact on Yass’ life and career, as he went on to earn advanced degrees in mathematics and finance and to found one of the most successful trading firms in the world.

While there is not much information available about Yass’ parents beyond these basic details, it is clear that they played a significant role in shaping his values and guiding his path in life.

Jeff Yass’s Siblings

There is limited information available about Jeff Yass’ siblings, as he is a private person and has not shared much about his personal life.

Jeff Yass has at least one sister, whose name is not publicly available. It is not clear whether Yass has any other siblings or just one sister. Given his private nature, Yass is unlikely to share his family relationships with the public.

While little is known about Jeff Yass’ siblings, it is clear that his family played a significant role in shaping his character and guiding his path in life.

Jeff Yass’s Wife (Partner)

Jeff Yass Biography

Jeff Yass is married with children, but there is limited information available about his wife and family life.

Janine Coslett is the wife of Jeff Yass. Despite her husband’s high-profile career, Coslett maintains a low profile and keeps details about her personal life out of the public eye.

Little is publicly known about Coslett’s background or professional pursuits. However, it is known that they have children together.

Coslett is known for her philanthropic work. She has been involved in supporting a variety of causes, including education, the arts, and social services. Along with her husband, she has made significant donations to institutions such as the University of Pennsylvania and the Philadelphia Museum of Art.

Despite her low profile, Coslett is a respected member of her community and is known for her commitment to giving back. Her philanthropic work, along with her husband’s success in business, has made them a prominent couple in the Philadelphia area and beyond.

While little is publicly known about Janine Coslett’s background, it is clear that she plays an important role in her husband’s life.

Jeff Yass’s Children

Jeff Yass is a private person who keeps details about his personal life out of the public eye.


Jeff Yass has four children. The names and ages of his children are not publicly available, and little is known about their interests, hobbies, or professional pursuits.

Jeff Yass Story

Jeff Yass’s Challenges and Obstacles

Jeff Yass has faced several challenges and obstacles throughout his life, but his determination and resilience have helped him overcome them and achieve success.

  • As a child, Yass struggled with a learning disability that made it difficult for him to read and write. Despite this challenge, he persevered and worked hard to overcome his learning disability by finding alternative ways to learn and absorb information.
  • After graduating from college, Yass struggled to find a job in his field and initially worked as a door-to-door salesman. However, he did not give up and continued to pursue his dream of working in finance and trading.
  • Starting a successful trading firm is a challenging endeavor that requires significant financial resources, business acumen, and a willingness to take risks. Yass and his co-founders faced numerous obstacles when starting SIG, including navigating complex financial markets, building a team of talented traders, and securing funding for their operations.
  • The financial markets are inherently volatile, and traders like Yass must be able to adapt to sudden market shifts and changing economic conditions. Yass and his team at SIG have faced numerous challenges over the years, including the global financial crisis of 2008, which tested their ability to manage risk and navigate turbulent markets.

Despite these challenges and obstacles, Yass has remained committed to his vision of building a successful trading firm and has overcome each challenge with determination, hard work, and a willingness to take calculated risks. His success in overcoming these obstacles has made him a respected figure in the trading community and a role model for aspiring traders and entrepreneurs.

Jeff Yass’s Accomplishments

Jeff Yass has achieved numerous accomplishments throughout his career in trading and finance.

  1. Founding Susquehanna International Group (SIG): Yass co-founded SIG in 1987, and the firm has since grown to become one of the largest privately-held trading firms in the world, with offices in the United States, Europe, and Asia. Yass is widely regarded as a pioneer in the field of quantitative trading.
  2. Philanthropic Work: Yass and his wife, Janine Coslett, are well-known for their philanthropic work, supporting a variety of causes including education, the arts, and social services.
  3. Successful Trading Career: Yass has been a successful trader throughout his career, and his trading strategies have generated significant profits for SIG. He is known for his expertise in options trading and has developed numerous trading strategies that have been adopted by traders around the world.
  4. Mentorship and Education: Yass is a passionate advocate for mentorship and education, and he has been involved in supporting programs that help young people develop the skills and knowledge they need to succeed in the trading industry. He has also taught courses on trading and finance at the University of Pennsylvania and other institutions.
  5. Leadership and Innovation: Yass is widely regarded as a leader in the trading industry, and he has been recognized for his innovative approach to trading and his ability to build and manage successful trading teams.

Jeff Yass’s contributions to the trading industry have made him a respected figure in the business community. His legacy is sure to endure for generations to come.

Jeff Yass Recognition and Awards

Jeff Yass has received numerous recognitions and awards throughout his career in recognition of his contributions to the trading industry, philanthropic work, and leadership.

  • Jeff Yass was named to Institutional Investor’s Trading Technology Top 40 list in 2018 in recognition of his contributions to the development of technology in the trading industry.
  • Forbes 400 List: Yass has been included on the Forbes 400 list of the wealthiest Americans multiple times, reflecting his success in the trading industry.
  • Yass was recognized on the Drexel LeBow Analytics 50 list in 2016, which recognizes the top 50 individuals and organizations that have made significant contributions to the field of analytics. Yass was recognized for his innovative use of data and analytics in the trading industry.
  • Lifetime Achievement Award from the Options Industry Council: Yass received this prestigious award in 2014, in recognition of his lifetime of achievements in the options trading industry.
  • Philadelphia Award: Yass received the Philadelphia Award in 2012, which is given to individuals who have made significant contributions to the city of Philadelphia. Yass was recognized for his philanthropic work in the city, including his support for educational institutions and the arts.
  • Yass was named Greater Philadelphia Entrepreneur of the Year by Ernst & Young in 1998 in recognition of his success in building Susquehanna International Group.

These recognitions and awards highlight his contributions to the trading industry, philanthropy, and leadership.

Jeff Yass is not just a successful trader, but also a remarkable philanthropist and leader. He has faced many challenges and obstacles throughout his life, but his determination and perseverance have allowed him to achieve great success in his career and personal life.

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