Citation

Kalshi (Prediction Market) - Footnote 58

contradicted50% confidence

1 evidence check

Last checked: 4/3/2026

The source does not mention that Kalshi and Polymarket have created a duopoly. The source does not state that Kalshi and Polymarket collectively amassed over $44 billion in trading volume during 2025. The source states that Polymarket is not operational in the US as of December 2023, not that it has faced restrictions on US users.

Evidence — 1 source, 1 check

research.contrary.com/company/kalshi(1 check)

contradicted50%Haiku 4.5 · 4/3/2026

Found: Kalshi and <EntityLink id="polymarket">Polymarket</EntityLink> have created what analysts describe as a duopoly in the prediction market space, collectively amassing over \$44 billion in trading volum…

Note: The source does not mention that Kalshi and Polymarket have created a duopoly. The source does not state that Kalshi and Polymarket collectively amassed over $44 billion in trading volume during 2025. The source states that Polymarket is not operational in the US as of December 2023, not that it has faced restrictions on US users.

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Record ID: page:kalshi:fn58