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 Republican win the Presidency in 2028?
41%
Kalshi
Will a Trump family member the 2028 Republican presidential nominee?
6%
Kalshi
Will J.D. Vance be the nominee for the Presidency for the Republican party?
42%
Kalshi
Will Byron Donalds be the nominee for the Presidency for the Republican party?
1%
Kalshi
Will Ron DeSantis be the nominee for the Presidency for the Republican party?
5%
Kalshi
Will Tucker Carlson be the nominee for the Presidency for the Republican party?
3%
Change ×
Will Ted Cruz win the 2028 Republican presidential nomination?
2%
– 0.0pt
Vol $2.4K today · $19.8M total
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.