Thomas Peterffy
American businessman
Nº Q7793127 ★★
Uncommon · People
Thomas Peterffy
American businessman
Thomas Peterffy (born September 30, 1944) is a Hungarian-born American billionaire businessman. He is the founder, chairman and the largest shareholder of Interactive Brokers. As of November 2025, his estimated net worth is US$109 billion, making him the 18th richest person in the world.
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From Wikipedia
Thomas Peterffy (born September 30, 1944) is a Hungarian-born American billionaire businessman. He is the founder, chairman and the largest shareholder of Interactive Brokers. As of November 2025, his estimated net worth is US$109 billion, making him the 18th richest person in the world. Peterffy worked as an architectural draftsman after emigrating to the United States, and later became a computer programmer. In 1977, he purchased a seat on the American Stock Exchange and played a role in developing the first electronic trading platform for securities. Peterffy is a donor to the Republican Party and conservative causes.
Text: Wikipédia, CC BY-SA 4.0. · Image: danor shtruzman (Public domain) ·
