Judge Bruce Buechler ruled that parts of financial expert Todd Povlich’s testimony regarding the valuation of John Overdeck’s $80 billion hedge fund, Two Sigma, must remain confidential during New Jersey's largest divorce proceedings. The case involves a dispute over whether Laura Overdeck should receive 35% of her husband's share in the company, estimated by Laura to be worth $6.2 billion and by John to be worth $4.5 billion. Judge Buechler expressed concern that disclosing details could reveal sensitive business information harmful to Two Sigma’s operations.
Written locally by qwen2.5:14b on 2026-10-06,
using this article's own text rather than the other coverage of the
same event (that is the story summary below).
Story summary
In New Jersey's largest divorce case, John Overdeck, a 56-year-old billionaire and co-founder of the $80 billion Manhattan-based hedge fund Two Sigma, won a court ruling to keep parts of his company's financial secrets confidential during public hearings. The hearing on the 10th day involved Judge Bruce Buechler deciding whether Overdeck’s expert witness, Todd Povlich, could testify without revealing sensitive business information. John’s estranged wife, Laura Overdeck, also 56 and a children's math book author, is seeking 35% of her husband's share in Two Sigma, estimated at $4.5 billion by John’s side but valued at $6.2 billion by Laura’s legal team. The couple, who have three children and never signed a prenup when they married in 2002, are also dealing with an ongoing company power struggle between Overdeck and his co-founder David Siegel.
Written for “Billionaire Divorce Battle Secrets” on 2026-10-06,
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The billionaire embroiled in New Jersey’s biggest divorce case Tuesday won his bid to keep the worth of his company’s assets secret from the public as he and his wife duke it out over the staggering fortune.
asserted
he → embroil → fortune
John Overdeck, 56, asked a judge to kick the public out of a Newark courtroom during testimony about the breakdown of the assets of his $80 billion Manhattan-based hedge fund, Two Sigma.
asserted
Overdeck → ask → fund
Family-court Judge Bruce Buechler ruled against sealing the entire testimony of Overdeck’s expert financial witness, Todd Povlich — but agreed that the parts of Povlich’s testimony that could reveal Two Sigma’s company secrets should happen behind closed doors.
uncertain
that → rule → doors
The ruling came on the 10th day of a multiday hearing in which Overdeck’s estranged wife, Laura Overdeck, 56, is fighting to be awarded 35% of John’s third of the company he founded with two other people in 2001 — including David Siegel, with whom he’s locked in a bitter company power struggle.
asserted
he → come → struggle
Laura and John, who have three kids, never signed a prenup when they were hitched in 2002.
asserted
they → have → 2002
John’s side claims his portion of Two Sigma is worth $4.5 billion, while Laura’s side says it’s worth $6.2 billion, as she stakes a claim in the business, saying it’s a marital asset.
uncertain
it → claim → business
During the public parts of Tuesday’s hearing, Laura — wearing red glasses, a cream blazer, blue plaid pants and gun-metal-colored woven leather heeled mules — appeared actively engaged, typing on a laptop and frequently leaning over to speak with her lawyers.
asserted
Laura → wear → lawyers
John meanwhile spent much of his time in court gazing down at his cell phone as his lawyer questioned Povlich, John’s second-to-last witness.
asserted
lawyer → spend → last
During the sealed part of the hearing, Povlich was expected to explain how he landed on his estimate of what Two Sigma’s overall worth was by explaining what he believed each of the company’s 20 entities should be valued at.
asserted
each → seal → entities
Earlier, Laura’s lawyer, Theresa Lyons, questioned why Povlich’s testimony needed to be kept secret when John’s side’s estimate of the company worth has already been publicized.
asserted
estimate → question → worth
Buechler said he worried that Povlich’s testimony would touch upon “where the values are going, what they are looking at, what they are investing in” — which he claimed would all be protected company secrets that could have a negative impact on Two Sigma if they got out.
uncertain
they → say → Sigma
Laura filed for divorce from John in 2022 after the pair, both math whizzes, had been married for 20 years, had their three children and raised them in a mansion in tony Short Hills — with the help of a full-time nanny and a 15-hour-a-week housekeeper.
asserted
pair → file → nanny
Laura claimed John intentionally tried to hide his assets to get out of paying her a monster sum in their divorce.
asserted
John → claim → divorce
Laura has turned down a previous settlement offer from John for more than $600 million, claiming she should be entitled to much more if she wins her bid for part of his fund.
asserted
she → turn → fund
The hearing is expected to open back up to the public Wednesday morning.
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hearing → expect → public
The Overdecks are also due back for additional days in court later this month with testimony expected from one other expert financial witness.
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testimony → expect → witness
John previously testified for several days, but Buechler barred any testimony from Laura after she was accused of wrongdoing in the case — namely allegedly hacking John’s computer, breaking into his post office box and deleting evidence from her phone.
uncertain
she → testify → phone
John recently bought a $72 million waterfront palace in Palm Beach, Fla., which he shares with current gal pal Kimia Shadrokh, 42, a Peakstone managing director and former commercial-real-estate executive at the Moinian Group.
asserted
he → buy → Group
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