According to Bloomberg, dispute resolutions on Polymarket have been dominated by a small number of UMA holders. Data shows that among over 6,400 addresses that participated in dispute resolution voting over the past three years, just nine large wallets accounted for approximately half of all UMA voting power and sided with the winning outcome in nearly all disputes. In April 2026, around 230 contracts with total trading volumes exceeding $1 billion entered dispute resolution, representing less than 1% of all Polymarket contracts—but larger trading volumes correlate with higher dispute frequency. Some traders have criticized the mechanism for granting anonymous whale wallets de facto decision-making power, while the promised process improvements by Polymarket and Risk Labs have been put on hold.
Bloomberg: A Few Whales Dominate Polymarket Dispute Resolutions
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Summary
Bloomberg cited on-chain data showing that a small group of UMA holders dominates dispute resolutions on Polymarket. Over three years, just nine large wallets controlled nearly half of the voting power and consistently supported the winning side. In April 2026, 230 contracts with over $10 billion in trading volume entered dispute resolution, though they accounted for less than 1% of all contracts. Critics argue the system grants excessive influence to anonymous whales, while promised reforms remain delayed.
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