Jim Simons: Is there a single family office?

Where does the fortune of Jim Simons come from?

Jim Simons is a mathematician and billionaire hedge fund manager. Known to be a quantitative investor, Simons founded “Renaissance Technologies” in 1982, a private hedge fund based in New York. If you’re looking for other single family offices of hedge fund billionaires check this article. Renaissance specialises in systematic trading using quantitative models derived from mathematical and statistical analysis. The firm is widely regarded as the “most secretive and successful” hedge fund of all time. As a result of its massive success, Simons has been described as one of Wall Street’s greatest investors. According to Forbes in 2024 the net worth of the 85 year old Jim Simons is estimated at around $31 billion, making him one of the richest people in the United States.

How did the Simons family business develop?

After receiving a bachelor’s degree in mathematics from the Massachusetts Institute of Technology and a doctorate, also in mathematics, from the University of California, Jim Simons founded the American hedge fund Renaissance Technologies in New York in 1982. In 1988, Renaissance launched its most famous and profitable portfolio, the Medallion Fund, which used an improved and extended form of Leonard Baum’s mathematical models, refined by pioneering algebraist James Ax, to explore correlations from which they could profit. The mathematical models the firm developed worked better and better each year, and by 1988 Simons had decided to base the firm’s trades entirely on the models. From 2001 to 2013, the fund’s worst year was a 21 per cent gain after fees. Medallion gained 98.2 per cent in 2008, the year the Standard & Poor’s 500 index lost 38.5 per cent. Simons ran Renaissance until his retirement at the end of 2009. Today, Renaissance has about $70 billion in AUM.

Is there a Jim Simons family office?

Yes. “Euclidean Capital”, based in New York, manages and invests all the assets belonging to Jim Simons.

How does the Jim Simons family office invest?

Jim Simons’ single family office focuses on venture capital investments in life sciences, healthcare, artificial intelligence, internet technology, food and biotechnology. In 2021, we reported about an investment made by Euclidean Capital: Peltarion, a Swedish AI-startup whose technology enables companies to use Artificial Intelligence. Euclidean Capital’s most recent investment in 2024 was in circle pharma as part of a $90 million Series D financing. Circle pharma is primarily focused on curing cancer

This article is part of our detailed report “The single family offices of the richest US families“.

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