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 Josh Shapiro and JD Vance be the 2028 Democratic and Republican presidential nominees?
2%
– 0.0pt
Vol $0 today · $7.2K total
Possibly the same event, on the other platform
Polymarket
Will Josh Shapiro win the 2028 Democratic presidential nomination?
5%
Polymarket
Will J.D. Vance win the 2028 Republican presidential nomination?
44%
Polymarket
Will Wes Moore win the 2028 Democratic presidential nomination?
2%
Polymarket
Will Mitch Landrieu win the 2028 Democratic presidential nomination?
0%
Polymarket
Will Gina Raimondo win the 2028 Democratic presidential nomination?
0%
Polymarket
Will LeBron James 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.