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
Polymarket
Will Jon Ossoff win the 2028 US Presidential Election?
9%
Polymarket
Will Gavin Newsom win the 2028 US Presidential Election?
10%
Polymarket
Will Ron DeSantis win the 2028 US Presidential Election?
3%
Polymarket
Will Ivanka Trump win the 2028 US Presidential Election?
1%
Polymarket
Will Rahm Emanuel win the 2028 US Presidential Election?
1%
Polymarket
Will JD Vance win the 2028 US Presidential Election?
21%
Change ×
Who will win the 2028 United States vice presidential election?
5%
– 0.5pt
Vol $78 today · $1.3K total
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.