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Billionaire Hedge Fund Founder’s Divorce Reveals Vast Wealth

Free News Reader  ·  September 1, 2026

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Billionaire Hedge Fund Founder's Divorce Reveals Vast Wealth

  • John Overdeck, co-founder of Two Sigma, is currently engaged in a high-stakes divorce trial with his estranged wife, Laura Overdeck, with an estimated $7.3 billion fortune at stake.
  • Laura Overdeck filed for divorce in March 2022, 20 years after their marriage, and is seeking a 35% stake in Two Sigma, which her legal team values at approximately $6.2 billion.

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The divorce proceedings between Two Sigma co-founder John Overdeck and Laura Overdeck, ongoing in New Jersey Superior Court, have brought the substantial wealth of a hedge fund titan into public view. Laura Overdeck initiated divorce proceedings in March 2022, two decades after their October 2002 marriage, citing irreconcilable differences. The couple did not have a prenuptial agreement.

At the center of the dispute is the valuation and division of John Overdeck’s stake in Two Sigma, a quantitative hedge fund he co-founded in 2001 with David Siegel. Laura Overdeck’s legal team is seeking a 35% share of his interest in the firm, which they value at around $6.2 billion. John Overdeck, whose net worth is estimated at $7.3 billion, has proposed a settlement of $723 million, arguing that his interest in Two Sigma is closer to $4.9 billion. He testified in August 2026 that he put hundreds of millions of dollars in pay into a joint account during their marriage, including $685 million from Two Sigma.

The trial is considered the largest contested divorce in New Jersey’s history. A key point of contention is whether Two Sigma should be considered a marital asset, with John Overdeck’s lawyers arguing the firm was established before their marriage, while Laura’s team contends its significant growth occurred during their union. The proceedings have also touched upon allegations by Laura Overdeck that assets were moved into trusts in Wyoming, a move she claims was intended to shield wealth, though John Overdeck’s legal team disputes this.

Adding another layer of complexity, John Overdeck has been involved in an ongoing internal power struggle with his Two Sigma co-founder, David Siegel, a feud that has reportedly impacted the firm and led to a major investor pulling out in 2023. Despite these internal conflicts and the divorce proceedings, Two Sigma’s assets under management have reportedly grown, reaching $80 billion.