A heated dispute over a Polymarket prediction contract ended with a final “No” resolution on Wednesday, after UMA token holders voted overwhelmingly—98.6% in favor—to uphold the outcome, despite Strategy (formerly MicroStrategy) having sold 32 Bitcoin before the May 31 deadline. The market, which asked whether Strategy would sell any Bitcoin by that date, had been thrown into chaos when a June 1 regulatory filing revealed the company sold 32 BTC for roughly $2.5 million between May 26 and May 31.
The resolution hinged on a last-minute rule clarification from Polymarket: “confirmation achieved outside of the market’s time frame does not qualify.” UMA, the decentralized oracle that provides dispute resolution for Polymarket, adhered strictly to this clarification. The final vote saw the largest holders dominate the decision—the top four “No” voters controlled nearly 7 million voting weight, over 25 times the entire “Yes” side. The biggest single vote, 3.11 million, came from borntoolate.eth, followed by UMA contributor Kevin Chan with 1.53 million, and other wallets each casting more than 1 million. Several wallets linked to Risk Labs, the company behind UMA, also voted “No.”
The result sparked outrage among traders who had bet “Yes.” Trader 0xDinosaur, who held 49,695.76 “Yes” shares worth about 35,000 USDC, argued the contract didn’t require public disclosure before the deadline, only that a sale occurred. “My position was aggressive, and maybe I was greedy,” he wrote on X, “but risk-taking does not change the facts, and it does not allow a platform to apply an unclear or unwritten rule after real money has already been placed.” Another trader, willo2, claimed a $500,000 loss and said UMA voters were forced to follow Polymarket’s revised rules even if they considered the outcome unjust.
Galaxy Research, which also held significant “Yes” exposure, pushed back sharply. “The core issue is whether the original rules (event-based) or the post-trade clarification (confirmation-based) governs,” the firm wrote. “Traders correctly predicted the future. The platform is about to tell them they were wrong anyway.” Galaxy argued that prediction markets should price what actually happens, not how oracle rules are reinterpreted post-trade. The incident has ignited broader debate about decentralized governance, the influence of large token holders, and the need for clearer resolution standards in prediction markets.
