Two Sigma co-founder faces $6.2B divorce claim in New Jersey's biggest case

John Overdeck, co-founder of the $80 billion hedge fund Two Sigma Investments, faces a multibillion-dollar divorce claim from his wife, Laura Overdeck, in New Jersey's largest-ever divorce trial. She seeks a 35% equity stake, potentially worth $6.2 billion, which could disrupt the firm's leadership amid his ongoing power struggle with co-founder David Siegel. During testimony in a Newark courtroom, John Overdeck argued the marital split and internal friction risked damaging Two Sigma's corporate standing. However, Laura's attorney challenged this, noting the fund's assets under management had actually grown since the divorce filing, which John conceded under oath. Laura is barred from testifying or presenting expert witnesses after a judge found she engaged in deceptive tactics, including hacking her husband's email. John's team has offered over $600 million in settlements, but the couple disputes the firm's valuation at marriage, with Laura also seeking half of treasury reserves and charitable funds.