Polymarket vs. Kalshi

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See where the two biggest prediction markets disagree. Pick any two markets, or start from the biggest gaps below: prices, volume, history and the resolution rules, side by side.

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Polymarket Politics

Will Teddy Riner win the 2027 French presidential election?

2% ▲ +2.3pt

Vol $311.7K today · $310.9K total

Market B

Possibly the same event, on the other platform

Kalshi Will Michelle Bolsonaro win the 2030 Brazilian presidential election? 7% Kalshi Will Oh Se-hoon win the next South Korean presidential election? 14% Kalshi Will Labour win the next U.K. election? 40% Kalshi Will Conservative win the next U.K. election? 26%

Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.