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 Marco Rubio win the 2028 US Presidential Election?
8%
– 0.0pt
Vol $2.9K today · $13M total
Possibly the same event, on the other platform
Kalshi
Will JD Vance and Marco Rubio be the 2028 Republican Presidential ticket?
30%
Kalshi
Will Marco Rubio be the nominee for the Presidency for the Republican party?
18%
Kalshi
Will Alexandria Ocasio-Cortez and Marco Rubio be the 2028 Democratic and Republ…
8%
Kalshi
Will Marco Rubio be the nominee for the Vice Presidency for the Republican part…
27%
Kalshi
Will Andrew Yang announce a run for President of the United States in 2028?
9%
Kalshi
Will Jon Stewart announce a run for President of the United States in 2028?
8%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.