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 Kamala Harris win the 2028 Democratic presidential nomination?
7%
– 0.1pt
Vol $72.7K today · $14.1M total
Possibly the same event, on the other platform
Kalshi
Will Kamala Harris be the Democratic Presidential nominee in 2028?
8%
Kalshi
Will J.B. Pritzker be the Democratic Presidential nominee in 2028?
3%
Kalshi
Will Josh Shapiro be the Democratic Presidential nominee in 2028?
5%
Kalshi
Will Jon Ossoff be the Democratic Presidential nominee in 2028?
13%
Kalshi
Will Rahm Emanuel be the Democratic Presidential nominee in 2028?
3%
Kalshi
Will Mark Cuban be the Democratic Presidential nominee in 2028?
1%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.