Thomas Peterffy

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 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. Forbess 2023 list of The World's Billionaires estimated his net worth at US$25.3 billion, making him the 57th richest man in the world. Early life and career Peterffy was born in Budapest, Hungary, on September 30, 1944, in a hospital basement during a Russian air raid. His father emigrated to the U.S. after the failure of the Hungarian Revolution in 1956. Peterffy left his engineering studies in Hungary and emigrated to the United States to join his father in New York in 1965. When his father, who was living with his second wife, did not have room to accommodate his son, he gave Thomas $100 and told him to "make something of himself". When he moved to New York City, he did not speak English. Peterffy began his career in the U.S. as an architectural draftsman working on highway projects for an engineering firm. At this firm, he volunteered to program a newly purchased computer. Of his background in programming, Peterffy said, "I think the way a CEO runs his company is a reflection of his background. Business is a collection of processes, and my job is to automate those processes so that they can be done with the greatest amount of efficiency". Peterffy left his career designing financial modeling software and bought a seat on the American Stock Exchange to trade equity options. During his career in finance, he has consistently pushed to replace manual processes with more efficient automated ones. He wrote code in his head during the trading day and then applied his ideas to computerized trading models after hours. Peterffy created a stir among traders by introducing handheld computers onto the trading floor in the early 1980s. His business related to his AMEX seat eventually developed into Interactive Brokers. He stepped down as CEO in 2019.