Polymarket Trading Collapses 92% in May as Whale Disputes Dominate

Polymarket’s monthly trading volume collapsed to $690.9 million in May, down 92.4% from $9.14 billion in April. The prediction market platform saw sports betting lead activity with $229.8 million in volume. Nine crypto whales now dominate disputes worth billions of dollars on the platform, raising questions about market concentration and retail participation.

Volume Crash Across All Categories

Polymarket’s total year-to-date volume reached $33.50 billion through May 2026. Sports markets fell to $229.8 million in May from $3.03 billion in April. Politics and government trading dropped to $155.9 million from $1.81 billion. Finance and Fed markets declined to $46.8 million from $305.2 million. The platform’s weekly volume data shows trading peaked at $2.54 billion in late March before trending lower through May.

Whale Dominance Raises Concentration Concerns

Nine crypto whales now control disputes worth billions of dollars on Polymarket. These large traders dominate market bets across multiple categories. The concentration suggests retail traders face reduced influence in price discovery. Market resolution depends on official results, but whale positions can create friction in dispute settlements.

Sports and Entertainment Lead Remaining Activity

Sports betting remains Polymarket’s largest category despite the May decline. Entertainment markets generated $20.6 million in May volume. Weather prediction markets saw minimal activity at $196.7 thousand. The platform continues offering odds on professional teams and athletes. AC Milan’s Serie A market shows $49.9 million in cumulative trading volume since launch.

What This Means for Traders

The volume collapse signals reduced retail interest in prediction markets during May. Whale concentration may limit price competitiveness for smaller traders. Polymarket’s crowd-sourced odds still aggregate real-time information from informed traders. However, the sharp decline raises questions about market liquidity and whether the platform can sustain growth.

Final Thoughts

Polymarket’s 92% monthly volume drop reflects a significant contraction in retail participation. With nine whales controlling billions in disputes, the platform faces concentration risk that may deter new traders seeking fair pricing.

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The content shared by Meyka AI PTY LTD is solely for research and informational purposes.  Meyka is not a financial advisory service, and the information provided should not be considered investment or trading advice.