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.
Possibly the same event, on the other platform
Kalshi
Will Republicans win the Senate race in Iowa?
63%
Kalshi
Will Republicans win the Senate race in Florida?
83%
Kalshi
Will the Republican party win the Senate in 2028?
48%
Kalshi
Will Democratics win the Senate race in Wisconsin?
63%
Kalshi
Will Democratics win the Senate race in Nevada?
60%
Kalshi
Will the Republican party win the House, the Republican party win the Senate, a…
15%
Change ×
Will the Republicans win the Nebraska Senate race in 2026?
71%
– 0.0pt
Vol $36.4K today · $381.4K total
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.