Englander is the founder, chief executive officer and owner of Millennium Management, a multi-strategy hedge fund. The New York-based investment firm has more than $80 billion in assets under management. Millennium operates fundamental equity, equity arbitrage, fixed income, commodities and quantitative strategies.
Englander's fortune derives from Millennium Management, a hedge fund with more than $79 billion in assets under management, according to the company's website in October 2025.
The value of Englander's hedge fund assets are based on a March 2025 Form ADV that says insider's control about 16% of Millennium's assets.
In November 2025 Englander sold a 15% stake in Millennium at a valuation of about $14 billion. His remaining 85% stake is valued using that figure, less a 10% key-person discount. The calculation was updated to reflect this transaction on Nov. 3, 2025, causing a $10.9 billion increase in the net worth figure.
Englander's cash and other assets reflects Millennium earnings based on Bloomberg calculations and the sale of the Millennium stake in November 2025, adjusted for taxes and market performance.
Englander declined to comment on his net worth through an e-mail from spokesman Joe Snodgrass.
Englander was born to Orthodox Jewish parents in Brooklyn, New York, in 1948. Growing up, he attended yeshiva, a traditional religious study school, before earning a degree in finance from New York University in 1970.
After graduation, Englander got a trading job at Kaufmann Alsberg & Co. while enrolled in NYU's MBA program. He liked the job so much he decided to drop out of graduate school, according to a 2005 Fortune profile.
Englander became a floor broker at the American Stock Exchange in 1976. There he met fellow trader John Mulheren, and the pair formed a firm called Jamie Securities in 1984. After Mulheren was implicated in an insider trading plot, Englander set out on his own. He founded Millennium Partners in 1989 with $35 million in capital, according to the hedge fund's website. Today, the firm manages more than $40 billion in assets under the name Millennium Management.
Millennium came under investigation by the Securities and Exchange Commission for its method of trading mutual fund shares in 2003. It agreed to a $180 million settlement in 2005. Englander was personally fined $30 million, though he was not forced to resign as head of the fund, according to the New York Times in a Dec. 2, 2005 story. The firm did not admit wrongdoing as a term of the agreement.
The billionaire lives in New York with his family.