Building WisdomTree & A Private Power-Couple Life
WisdomTree: His Billion-Dollar Creation
In 1988, Steinberg founded WisdomTree, a New York–based asset management firm specializing in ETFs and alternative investments. What began modestly has become a major competitor to giants like BlackRock and Vanguard.
Under Steinberg’s leadership, the company grew rapidly, fueled by his talent for spotting market opportunities. In 2015, he earned the EY Entrepreneur of the Year Award in New York — a milestone in his rise from underdog to financial leader.
Today, GuruFocus estimates Jonathan Steinberg’s net worth at $94 million, with WisdomTree managing billions worldwide. As the firm expands into blockchain-based investing and digital finance, his influence continues to grow.

A Power Couple Built on Privacy and Ambition
While Steinberg scaled the world of asset management, Maria Bartiromo became a household name — the first woman to broadcast live from the floor of the New York Stock Exchange and the iconic “Money Honey.”
The two met in 1990 after Bartiromo graduated from NYU, and they married in 1999 in the Hamptons village of Quogue. Despite their high-profile careers, the couple has kept their personal lives remarkably private. They have no children and maintain a low-drama, deeply supportive partnership rooted in shared interests in media, markets, and politics.
They live in a stunning five-story Manhattan townhouse and retreat on weekends to their beachfront home in Westhampton — far from cameras and headlines.
The Visionary Behind the Scenes
Though married to one of television’s most recognizable financial journalists, Jonathan Steinberg avoids red carpets and rarely grants interviews. Those who work with him describe a sharp, analytical mind, a dry sense of humor, and an unwavering focus on strategy.
His ambitions for WisdomTree remain bold: he aims to push the firm beyond $100 billion in assets under management, especially as it pushes into fintech and crypto ETFs.
The Man Behind the Money Honey
As Maria Bartiromo continues to generate headlines — from Trumpworld stories to Wall Street scoops — Jonathan Steinberg remains exactly where he likes to be: behind the scenes, building, innovating, and supporting his wife.
Together, they represent a rare kind of power couple: one defined not by spectacle, but by longevity, intellect, and quiet ambition.