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.
Change ×
Will Mark Kelly announce a Presidential run before 2027?
8%
▲ +0.6pt
Vol $341 today · $14.6K total
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.