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Thomas Peterffy
danor shtruzman · Public domain
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Thomas Peterffy

American businessman

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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.

Quick facts

Born
wd
Place of birth
Budapest wd
Citizenship
United States wd
Occupation
businessperson wd

About

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.

Questions

When was Thomas Peterffy born?
Thomas Peterffy was born on 30 September 1944 in Budapest.

Sources

  1. Wikipedia (English): Thomas Peterffy · CC BY-SA 4.0
  2. Wikidata item Q7793127 · CC0 1.0
  3. Image: Thomas Peterffy Painting Portrait By Artist Danor Shtruzman - Art Drawings (100 Richest By Forbes 2017 List).jpg by danor shtruzman (Public domain)

Last updated · facts checked 13 November 2026

Cite this page

"Thomas Peterffy". DigiNepal. Last updated 31 October 2026. https://diginpl.com/people/thomas-peterffy. Retrieved 14 November 2026.

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Text from the Wikipedia article Thomas Peterffy, licensed under CC BY-SA 4.0. This page's text is shared under the same licence. Facts from Wikidata (CC0). Image: Thomas Peterffy Painting Portrait By Artist Danor Shtruzman - Art Drawings (100 Richest By Forbes 2017 List).jpg — danor shtruzman, Public domain.

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