Polymarket vs. Kalshi
Compare markets
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 lowest temperature in New York City be between 40-41°F on November 1?
35%
– 0.0pt
Vol $0 today · $0 total
Possibly the same event, on the other platform
Kalshi
Will New York City experience population change between -0.99% and 0% during 20…
38%
Kalshi
Will New York City experience population change between 0.01% and 0.99% during …
40%
Kalshi
Who will win the next New York City mayoral election?
82%
Kalshi
Will Zohran Mamdani announce a run for mayor of New York City in 2029?
76%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.