POPA ReconPrediction Market Open Interest Fell After the World Cup Ended
Prediction Market Open Interest Fell After the World Cup Ended In July, open interest declined on both platforms, but their market shares moved in different directions. Kalshi’s share slipped only slightly, from ~ 62% to ~59%, while Polymarket’s increased from ~27% to ~41%, largely due to capital leaving smaller platforms. The end of the World Cup therefore had a greater impact on Kalshi, where more event-driven capital had been concentrated. Even so, Kalshi still controls ~59% of total open interest and remains the market leader, although its lead over Polymarket has narrowed significant…
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