Nine whale wallets dominate Polymarket dispute votes, sparking centralization concerns

BlockBeats reports that Polymarket's dispute resolution outcomes are increasingly shaped by a small group of UMA token holders. Data from the past three years show that out of more than 6,400 addresses participating in dispute-resolution voting, just nine whale addresses control roughly half of the total UMA voting power, and they have backed the eventual winning outcome in nearly every case. In April 2026, about 230 contracts entered the dispute process, with combined trading volume exceeding $1 billion. While disputed contracts accounted for less than 1% of all Polymarket markets, disputes tended to become more frequent as trading volume increased. Some traders argue the system effectively grants anonymous whales the economic leverage to make de facto decisions. Planned upgrades to the dispute-resolution process by Polymarket and Risk Labs, the team overseeing UMA, have reportedly been paused.