Thomas Peterffy, Interactive Brokers founder and chairman, joins 'Closing Bell Overtime' to talk quarterly results, his ...

Peterffy Weighs In: "The year was really a very good year for us, so I'm kind of puzzled why the stock fell," Interactive Brokers Founder and Chairman Thomas Peterffy said Tuesday on CNBC's ...

Thomas Peterffy, the billionaire founder and chairman of electronic brokerage giant Interactive Brokers Group Inc., thinks the rally in the U.S. stock market is overdone, and views hopes for a ...

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Thomas Peterffy, founder and CEO of Interactive Brokers, exemplifies the American Dream through his journey from immigrant to successful entrepreneur.

Thomas Peterffy predicts Virginia Governor Glenn Youngkin will run for president if the Virginia Senate flips red next week—and says billionaires are lining up to support him. Thomas Peterffy ...

Interactive Brokers chairman and founder Thomas Peterffy joins CNBC's "Closing Bell" to discuss the decision to restrict trade activity. "We are worried about the integrity of the marketplace and ...

Wall Street pioneer Thomas Peterffy told CNBC on Wednesday he was concerned about the prospect of damaging inflation in the U.S., leaning on his personal experiences as a youth in Hungary after ...

Thomas Peterffy in Washington, D.C., in 2010. Andrew Harrer / Bloomberg via Getty Images file. Youngkin's PAC has been on a fundraising streak lately, with the Virginia governor raising money ...

Billionaire Thomas Peterffy is perhaps best known as the founder of electronic stock trading firm Interactive Brokers, but the Hungarian-born American entrepreneur also grew up in the shadow of ...

Thomas Peterffy, founder and chairman of Interactive Brokers Group Inc., says the Securities and Exchange Commission faces tough challenges as it considers eliminating a Wall Street practice that ...

A Tour of Thomas Peterffy’s Greenwich Estate The billionaire’s 80-acre Connecticut property includes an 8,000-square-foot main home, guest houses, a stable and “The Ruins”—the ...