Polymarket Faces $187M Dispute After Strategy Bitcoin Sale

A disagreement over contract wording has turned a routine Bitcoin sale into one of Polymarket’s largest resolution controversies.
Strategy confirmed on Monday that it sold approximately $2.5 million worth of Bitcoin before May 31, its first Bitcoin disposal since 2022. The move looked straightforward. On Polymarket, a prediction market had been asking a simple question: would Strategy sell Bitcoin before the end of May? The answer appeared to be yes.
Traders disagreed with how the platform read it.
The dispute centres on a clarification Polymarket issued after the sale was disclosed. While most traders understood the contract to require only that a sale occur before the deadline, Polymarket stated that a public announcement also needed to happen within that window. That single sentence shifted everything. Odds on a “yes” outcome had briefly climbed to 80% following Strategy’s disclosure, then collapsed.
By that point, more than $9 million had already been wagered on the outcome. Trading volume has since surpassed $187 million as participants debate not whether Strategy sold Bitcoin, but how the platform will rule on the question.
The final call rests with UMA token holders, the decentralised mechanism Polymarket uses to settle contested markets. A governance vote is expected to resolve the outcome, leaving hundreds of millions in open positions in limbo in the meantime.
The governance layer itself is under scrutiny. A Bloomberg analysis published this week, first reported by Emily Nicolle, found that nine wallets control more than half of all UMA tokens, concentrating resolution power over markets that routinely handle nine-figure sums.
The episode arrives as institutional money moves more seriously into prediction markets. Galaxy Digital and Arca both disclosed positions this week, confirming they used a $10 million prediction-market stake to hedge exposure to US crypto legislation, framing these markets as risk-management instruments rather than speculative ones.
Polymarket declined to comment.
💡 TGJ Take
The Strategy case is a useful stress test for prediction markets, and the result is not flattering.
The sale happened on the terms the contract described. Then Polymarket added a condition after the fact, and $187 million in positions suddenly hinged on an editorial call. Nine wallets controlling majority resolution power over that sum is not decentralised governance. It is a small group deciding who wins.
Institutional capital needs predictable rules. The demand for prediction markets is real. The infrastructure is not ready for it.