Thomas Peterffy is CEO of Interactive Brokers. He was the first to build computer systems to trade financial assets electronically, without human interference, in the early 1980s. Born in Budapest, Hungary in 1944, he emigrated to the United States in 1965 to escape communism. He learned computer programming and developed a formula for pricing contingent assets, an early version of the one known today as Black Sholes. In 1977 he became a member of the American Stock Exchange, and built the first automated market making firm for stocks, options, and futures, which later gave rise to Interactive Brokers, a global, electronic broker with 1,500 employees and market capitalization of $25 billion.