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Welcome to the Prediction-Market Election

WSJ What’s News

P.M. Edition for Oct. 30. Journal reporter Kevin Dugan tells us why this election will be a crucial test for Kalshi and Polymarket. The prediction markets…

0:00 15:23

Episode Summary

P.M. Edition for Oct. 30. Journal reporter Kevin Dugan tells us why this election will be a crucial test for Kalshi and Polymarket. The prediction markets say that the wisdom of crowds beats out traditional political polling–but they’ve had some big recent misses. Plus, the tech selloff deepened today, pushing the Nasdaq to its worst…

Published October 30, 2026 · 15:23