
Thomas Peterffy
Entrepreneur · Interactive Brokers · finance
1944 · United States
$109Breported estimate as of November 2025 · Forbes
Thomas Peterffy 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.
danor shtruzman, Public domain, via Wikimedia Commons
Sources (4)
- Thomas Peterffy (Q7793127) · Wikidata
- Thomas Peterffy · Wikipedia
- Thomas Peterffy — Forbes net worth (via Wikidata) · Forbes · 2019
- Thomas Peterffy — Forbes net worth (stated on Wikipedia) · Forbes · 2025



