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 the highest temperature in Shanghai be 20°C or below on November 1?
2%
▼ 8.9pt
Vol $20 today · $20 total
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.