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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Will the Democratic party hold exactly 48 Senate seats in the 121st Congress?
5%
▼ 2.5pt
Vol $194 today · $2.9K total
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.