One day in July 1985, three young men from Philadelphia, their lawyer and a burly Pinkerton guard arrived at a horse track outside Chicago carrying a briefcase with $250,000 in cash.
Running the numbers on a Compaq computer the size of a small refrigerator, Jeffrey Yass and his friends had found a way to outwit the track’s bookies, according to interviews, records and news accounts. A few months earlier, they’d wagered $160,000, gambling that, with tens of thousands of bets, they could nail the exact order of seven horses in three different races. It was a sophisticated theory of the racing odds, honed with help from a Ph.D. statistician who’d worked for NASA on the moon landing, and it proved right. They bagged $760,000, then the richest payoff in American racing history.
But that summer day, when they presented their strikingly long list of bets at the track window, they were turned away. Their appeal to the track owner got them ejected. Yass, just 27, then sued for the right to place the bets. The track’s lawyer fumed to a federal judge that the men were trying to corner the betting market “through the use of their statistics and numbers.”
Yass lost, but that year he and his friends repeated variations of the strategy at horse and greyhound tracks around the country. Then they decided to turn their focus from a world of hundreds of thousands of dollars to a world of billions: Wall Street.
Four decades later, the firm he and his friends founded, Susquehanna International Group, is a sprawling global company that makes billions of dollars. Yass and his team used their numerical expertise to make rapid-fire computer-driven trades in options and other securities, eventually becoming a giant middleman in the markets for stocks and other securities. If you have bought stock or options on an app like Robinhood or E-Trade, there’s a good chance you traded with Susquehanna without knowing it. Today, Yass, 63, is one of the richest and most powerful financiers in the country.
But one crucial aspect of his ascent to stratospheric wealth has transpired out of public view. Using the same prowess that he’s applied to race tracks and options markets, Yass has taken aim at another target: his tax bill.
There, too, the winnings have been immense: at least $1 billion in tax savings over six recent years, according to ProPublica’s analysis of a trove of IRS data. During that time, Yass paid an average federal income tax rate of just 19%, far below that of comparable Wall Street traders.
Yass has devised trading strategies that reduce his tax burden but push legal boundaries. He has repeatedly drawn IRS audits, yet has continued to test the limits. Susquehanna has often gone to court to fight the government, with one multiyear audit battle ending in a costly defeat. The firm has maintained in court filings that it complied with the law.
Yass’ low rate is particularly notable because Susquehanna, by its own description, specializes in short-term trading. Money made from such rapid trades is typically taxed at rates around 40%.
In recent years, however, Yass’ annual income has, with uncanny consistency, been made up almost entirely of income taxed at the roughly 20% rate reserved for longer-term investments.
Congress long ago tried to stamp out widely used techniques that seek to transform profits taxed at the high rate into profits taxed at the low rate. But Yass and his colleagues have managed to avoid higher taxes anyway.
The tax savings have contributed to an explosion in wealth for Yass, who has increasingly poured that fortune into candidates and causes on the political right. He has spent more than $100 million on election campaigns in recent years. The money has gone to everything from anti-tax advocacy and charter schools to campaigns against so-called critical race theory and for candidates who falsely say the 2020 election was stolen and seek to ban abortion.
ProPublica has pieced together the details of Yass’ tax avoidance using tax returns, securities filings and court records, as well as by talking to former traders and executives. (The former employees spoke on condition of anonymity, with many citing a desire to avoid angering Yass.)
Through a spokesperson, Yass declined to be interviewed for this article. The spokesperson declined to comment in response to a long list of questions for Susquehanna and the firm’s founding partners.
Gregg Polsky, a University of Georgia law professor and former corporate tax lawyer who was retained by ProPublica to review Susquehanna’s tax records, said the tax agency may have more to scrutinize. The strategies revealed in Yass’ records, he said, were “very suspicious and suggestive of potential abuse that should be examined by the IRS.”
More than 35 years after he was booted from the racetrack outside Chicago, Yass still lives to gamble. Not just on horses, but on poker and on the market. He sheepishly admitted, in a podcast discussion, that he has even placed wagers on his children’s sports games.
Asked to describe his approach to trading at Susquehanna, Yass once reached for a poker analogy. “If you’re the sixth-best poker player in the world and you play with the five best players, you’re going to lose,” he said. “If your skills are only average, but you play against weak opponents, you’re going to win.”
That philosophy along with, Yass freely admits, a lot of luck, has made him a billionaire many times over.
Compared to many of his fellow billionaires — he’s richer than Hollywood mogul David Geffen, retail brokerage king Charles Schwab and “Star Wars” creator George Lucas — Yass doesn’t seem particularly interested in the trappings of extreme wealth.
Yass and his wife, Janine, raised four children in the leafy college town of Haverford, on the Main Line outside of Philadelphia. Their large but unremarkable house could easily be the home of a successful doctor rather than one of the richest men in the country. In his quarter-zip pullover sweater, Nikes and no-nonsense rimless glasses, he’d be impossible to pick out of a crowd at the suburban country club where he plays golf.
If Yass collects expensive art or maintains a megayacht, he has managed to do so in complete secrecy. What comes closest to an identifiable trophy asset is a house in the ultra-exclusive Georgica Association beach neighborhood of East Hampton on New York’s Long Island. Even that property, purchased for $12.5 million in 2005 and held through an LLC, is in an area known as “bucolic and understated.”
Those who have worked with Yass say he lives less for spending money than for the competition of the market and the thrill of taking calculated risk. Yass softens any impression of ruthlessness by deploying a practiced humility and comedic timing. “Some people like art history,” he once explained, “I like probabilistic analysis.”
Yet when it comes to his philosophical outlook, he eschews the jokes. He speaks of capitalism in religious terms. Making new markets, he likes to say, is a “mission from God.”
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