The potentially third-largest divorce settlement in U.S. history is unfolding in a New Jersey family court, pitting billionaire hedge fund founder John Overdeck against his estranged wife, Laura Overdeck. The couple, married for 20 years without a prenup, are embroiled in a dispute over the division of assets from Overdeck's $80 billion investment firm, Two Sigma.
Laura Overdeck is seeking $6.2 billion, which represents 35% of John Overdeck's stake in the hedge fund. She argues that Two Sigma, founded in 2000, was largely a paper asset when they married. However, John Overdeck, 56, contests this, claiming he deserves the majority credit for the firm's success and that his ex-wife is entitled to a much smaller share. He has offered approximately $600 million, which he considers a fair amount for her share of the appreciation during their marriage. "Laura, I think, was alongside me for all of this, and I think it is fair that she received some amount of the appreciation, the net appreciation that occurred during the marriage," he testified.
John Overdeck, a math prodigy who won a silver medal at the International Mathematics Olympiad at age 16 and graduated from Stanford University at 19, worked with Jeff Bezos at DE Shaw & Co. before co-founding Two Sigma. Laura Overdeck, a graduate of Princeton University and the Wharton School, also worked in the hedge fund industry before focusing on philanthropy. The couple established the Overdeck Family Foundation, dedicated to education, and Laura Overdeck founded Bedtime Math, a non-profit that creates children's books and apps to foster interest in mathematics.
Laura Overdeck filed for divorce in 2022, alleging that her husband had been planning to end the marriage for years and attempting to conceal assets. Court filings suggest this alleged planning coincided with Two Sigma's substantial growth. The central issue in the trial is whether John Overdeck's stake in Two Sigma can be classified as a marital asset.
Adding complexity to the proceedings, John Overdeck and his co-founder David Siegel have been engaged in a power struggle for control of Two Sigma since 2023, with each owning roughly half the firm. A significant financial victory for Laura Overdeck could potentially shift the balance of power at the firm in favor of Siegel.
The divorce has also brought to light accusations against both parties. A lawsuit filed by John Overdeck's fencing instructor girlfriend accused Laura Overdeck of defamation, alleging she insinuated the girlfriend ruined their marriage and called her a criminal. Body-camera footage from 2023 captured an incident at the Overdecks' mansion where the girlfriend ranted to police, and Laura Overdeck later arrived and demanded both John and his girlfriend leave.
Conversely, Laura Overdeck has faced accusations of hacking her estranged husband's computer, breaking into his post office box, and deleting evidence from her phone. These allegations led a judge to bar her from testifying at the trial, which is expected to continue with John Overdeck's testimony.
John Overdeck has testified that his wife's involvement with Two Sigma was limited to attending company parties and receiving copies of her children's book series, stating she did not manage money, make investment decisions, or participate in hiring. He also described their home life, noting that Laura managed the household and childcare with assistance, though he stated he was an active father who coached their children's sports teams and prioritized family time on weekends.
If Laura Overdeck is awarded the $6.2 billion she is seeking, their divorce would rank behind only those of Bill and Melinda Gates and Jeff Bezos and MacKenzie Scott in terms of financial value in U.S. history. John Overdeck has stated that he was always prompt in sharing his investment successes with his wife, noting that she withdrew $75 million the day before filing for divorce, which he described as their comfortable life.