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 Anna Kelly be the next White House Press Secretary before Jan 20, 2029?
16%
▲ +4.0pt
Vol $31.9K today · $112.5K total
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.