Jeff Yass

{ "bio": [ "Jeff Yass is a cofounder of Susquehanna International Group, one of Wall Street's largest and most successful trading firms.", "He went to SUNY Binghamton, became a pro gambler, then began trading on the Philadelphia Stock Exchange in 1981 backed by billionaire Israel Englander.", "In 1987, he cofounded Susquehanna with a handful of partners; it's now a giant in options trading and making markets, with more than 3,000 employees worldwide.", "It recruits and trains traders using poker tournaments to sharpen decision-making skills; its traders have won 3 World Series of Poker bracelets.", "Susquehanna has invested in hundreds of private companies globally, including TikTok parent ByteDance, its most valuable holding based on Forbes reporting." ], "about": [ "In the 1990s, Yass' father Gerald helped build Susquehanna's back-office bookkeeping operations.", "For a college economics class, Yass wrote a final paper titled, \"An Econometric Analysis of Horse Racing,\" that he eventually published in Gambling Times magazine." ] }