Net WORTH 2021 $ 22.9 Billion
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. Peterffy worked as an architectural draftsman after emigrating to the US, 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. According to he is the richest Hungarian, and the richest person in Florida.