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

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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 ...

Hungary-born billionaire Thomas Peterffy, a pioneer of computerized stock trading, is listing his 80-acre estate in Greenwich, Conn. for $65 million. Mr. Peterffy’s house and most of the ...

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' founder revealed the worst trade of his career in a recent interview. Thomas Peterffy said spotting a stock to short was easier than finding a compelling one to buy. Peterffy ...

Thomas Peterffy opened up about his worst trade ever, alongside revealing some more details about his life and investment philosophies.

Thomas Peterffy expects stocks to tumble and a recession to hit, and sees threats to the US dollar. The Interactive Brokers founder says his sizeable bitcoin wager could be worth a lot or nothing ...

Billionaire Republican megadonor Thomas Peterffy wired $1 million to Virginia Gov. Glenn Youngkin’s “Spirit of Virginia” PAC Thursday.

The pair are in contract to pay $110 million for Patrick Dovigi’s mansion, which he bought for $72.5 million in 2021.

Thomas Peterffy, whose near-75% stake in his electronic brokerage makes up most of his estimated $27 billion fortune, recounted to Forbes a painful trade involving DuPont in the late 1970s.