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 Gavin Newsom win the 2028 Democratic presidential nomination?
15%
– 0.1pt
Vol $1.8K today · $28M total
Possibly the same event, on the other platform
Kalshi
Will Gavin Newsom be the Democratic Presidential nominee in 2028?
14%
Kalshi
Will Gavin Newsom and JD Vance be the 2028 Democratic and Republican presidenti…
12%
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%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.