Polymarket UMA oracle upholds 'No' on Strategy bitcoin sale market amid trader backlash
Polymarket's UMA oracle vote upheld a 'No' resolution on June 4 for a market asking whether Strategy would sell bitcoin by May 31, despite trader backlash and disputed contract terms. Strategy sold 32 BTC for roughly $2.5 million between May 26 and May 31, its first bitcoin sale since 2022, but the oracle determined the transaction did not satisfy the market's conditions. Traders who wagered 'Yes' on the contract — valued at figures ranging from $80 million to nearly $150 million across sources — contested the outcome, with some alleging rule changes retroactively invalidated winning positions. Crypto commentator Scott Melker highlighted renewed scrutiny of how prediction markets resolve ambiguous contracts. Polymarket had not publicly responded to specific manipulation claims as of publication.
Polymarket must now defend the reliability of its UMA oracle to traders who wagered millions on corporate treasury transparency. Any lasting erosion of confidence in resolution finality would push high-stakes crypto event-contract liquidity toward Kalshi's CFTC-regulated venue or offshore perpetual futures platforms.
Polymarket's UMA oracle mechanism faces its most severe stress test since a trader lost $500,000 on a prior Strategy market rules change, deepening concerns that corporate-treasury event contracts are becoming a reputational liability for the platform.