Polymarket's $6.5M "Yes-But-Actually-No" Heard in Court ⚖️

Two Polymarket traders have filed a breach-of-contract lawsuit against the prediction-market platform over the resolution of a market tracking whether Strategy would sell Bitcoin by May. Filed by William Wood and Thomas Bush and represented by Burwick Law, the suit alleges Polymarket retroactively altered the market's criteria after Strategy disclosed the sale of 32 BTC in an SEC filing between May 26 and May 31.

According to the plaintiffs, Polymarket added new "clarifying" language after the disclosure, reframing the question from whether Strategy sold Bitcoin by May 31 to whether the sale was publicly confirmed by May 31. The market was ultimately resolved to "No" following a final review by UMA vote. Wood stated that a total of $6.5M was lost by 1,868 traders holding "Yes" shares. The lawsuit asserts that a prediction market which overrides a proven, unambiguous event does not sell truth; it controls payout.

In June, Galaxy Research publicly criticized the resolution, with the firm writing that "everyone who bought YES predicted the future correctly, and the market just told them they were wrong. That is a failure." As of writing, Polymarket had not issued a public response to the lawsuit.

Thomas Braziel, a policy analyst, said the case could rank among the most consequential lawsuits in the prediction-market sector, as UMA dispute practices could come under judicial review. The sector has faced heightened scrutiny and litigation covering ethics, insider trading, and the regulatory boundary between U.S. states and the CFTC, with the CFTC advancing a clearer framework for event contracts. Whether the outcome of the Burwick suit helps refine elements of that proposed framework remains an open question for the industry.