Roughly 30 % of the trading quantity on Polymarket comes from america, in response to a brand new examine—an eye-popping quantity, contemplating that none of these persons are legally allowed to make use of the crypto-based platform.
The examine, carried out by Rutgers College statistician Harry Crane, estimated that individuals within the US funneled between $10.6 to $26.7 billion via Polymarket. To trace the platform’s exercise, Crane checked out what gave the impression to be US-based trades on offshore prediction market platforms from Might 2025 to the top of April 2026. He discovered that most of the highest-volume markets on Polymarket had been US-centric, together with these overlaying US elections and sporting occasions. US-based merchants appeared to take part on Polymarket’s sports activities vertical at particularly excessive charges; the examine estimated that they accounted for roughly half of the exercise in these markets.
“It’s been recognized that there are people on there, however what hasn’t been recognized is the extent, whether or not it’s one or 10 or an really considerable fraction,” says Crane, who can be a member of the Commodity Futures Buying and selling Fee Innovation Advisory Committee, a panel that provides federal regulators steerage on how know-how impacts markets. The Coalition for Prediction Markets, a lobbying group on behalf of the business, commissioned and funded the examine, although Crane maintained editorial management. Kalshi, Coinbase, Crypto.com, and different main prediction market gamers are members of this group. Polymarket will not be.
Polymarket is among the hottest prediction markets on the planet, permitting clients to commerce on the outcomes of future occasions starting from the winner of the NBA Finals to the worth of bitcoin in five-minute increments to navy actions in Iran. It has partnered with US-based media firms like Substack and Dow Jones, in addition to American sports activities leagues like Main League Baseball and the Nationwide Hockey League.
However Polymarket’s major crypto-based platform has been banned within the US since 2022, when federal regulators discovered that it had been working as an unregistered derivatives buying and selling platform. Since December 2025, Polymarket has operated a separate prediction market obtainable on a cellular app that’s licensed within the US, known as Polymarket US. In line with a report from Pew Analysis, Polymarket US’s buying and selling quantity in April 2026 got here to round $1.6 billion, whereas the crypto-based major platform hit round $9 billion, making it by far the bigger market.
To get across the digital blockade, US merchants are thought to disguise their places to entry the Polymarket web site, typically utilizing digital non-public networks to obscure their nation of origin. (Polymarket’s phrases of service prohibits using VPNs.) Due to this, quantifying the dimensions of the market is tough, and that is the primary main public try to supply an estimate.
With out dependable methods to straight observe site-traffic geography, Crane got here up with a strategy that assumes that US merchants have distinct behaviors in comparison with their worldwide counterparts, trying on the time of day trades had been made, the markets by which trades had been made (US merchants, for instance, are extra occupied with US-based sporting occasions than their international friends). The ensuing estimate is thus imprecise, however nonetheless gives the perfect snapshot of what number of US-based customers are doubtless collaborating surreptitiously. “It isn’t good, however I believe it supplies an inexpensive estimate of the fraction of the quantity attributable to offshore buying and selling,” says College of Toronto Scarborough affiliate professor of finance Charles Martineau, who has studied Polymarket buying and selling conduct. “However utilizing these oblique proxies is frequent in finance analysis.”
Polymarket declined to remark.
The CFTC doesn’t usually have authority over offshore prediction markets, however company chairman Michael Selig told WIRED final month that he is prepared to make use of extraterritorial jurisdiction to catch unhealthy actors on a case-by-case foundation. It’s unclear if the company would trouble monitoring US-based merchants who used VPNs to skirt the ban however in any other case abided by the regulation. The CFTC didn’t reply to requests for remark.
In April there was a really high-profile instance of somebody in america making trades on Polymarket: The Division of Justice charged a particular forces soldier for allegedly utilizing categorised details about the seize of former Venezuelan president Nicolás Maduro to clear round $400,000 in income from Polymarket trades.
The examine means that US-based exercise will proceed to flourish on the location if Polymarket’s crypto platform maintains its market share. It estimates that US-based buying and selling quantity might attain $133 billion by 2030.
