Polymarket Dispute Resolution Dominated by Whale Minority, with 9 Addresses Holding ~50% of UMA Voting Power

BlockBeats News, May 26th, the ruling on the contentious contracts on Polymarket is being dominated by a minority of UMA holders. Statistics show that out of over 6400 addresses that have participated in Polymarket dispute resolutions over the past three years, only 9 whale addresses have contributed about half of the UMA voting power and have sided with the winning party in almost all disputes. In April 2026, about 230 contracts with a total volume of over $1 billion entered the dispute resolution process, accounting for less than 1% of all Polymarket contracts, but the dispute frequency has increased with the transaction size.

Some traders criticize this mechanism for actually giving anonymous whales an economically motivated "de facto veto power," while Polymarket and Risk Labs, which is responsible for UMA, have shelved their plans to improve the related processes.