Polymarket vs. Kalshi
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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.
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Will Kamala Harris be the Democratic Presidential nominee in 2028?
8%
– 0.2pt
Vol $13.7K today · $8.7M total
Possibly the same event, on the other platform
Polymarket
Will Kamala Harris win the 2028 Democratic presidential nomination?
7%
Polymarket
Will Wes Moore win the 2028 Democratic presidential nomination?
2%
Polymarket
Will Gina Raimondo win the 2028 Democratic presidential nomination?
0%
Polymarket
Will Mitch Landrieu win the 2028 Democratic presidential nomination?
0%
Polymarket
Will LeBron James win the 2028 Democratic presidential nomination?
0%
Polymarket
Will Hakeem Jeffries win the 2028 Democratic presidential nomination?
0%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.