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.
Possibly the same event, on the other platform
Kalshi
Will Jon Stewart be the Democratic Presidential nominee in 2028?
0%
Kalshi
Will Jon Ossoff be the Democratic Presidential nominee in 2028?
14%
Kalshi
Will J.B. Pritzker be the Democratic Presidential nominee in 2028?
3%
Kalshi
Will Jon Ossoff and Marco Rubio be the 2028 Democratic and Republican president…
4%
Kalshi
Will Jon Ossoff and JD Vance be the 2028 Democratic and Republican presidential…
11%
Kalshi
Will Stephen A. Smith be the Democratic Presidential nominee in 2028?
1%
Change ×
Will Jon Stewart win the 2028 Democratic presidential nomination?
1%
– 0.1pt
Vol $7.5K today · $24.8M total
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.