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 Tom Brady win the 2028 Republican presidential nomination?
0%
– 0.1pt
Vol $104.1K today · $33.2M total
Possibly the same event, on the other platform
Kalshi
Will the Republican party win the Presidency in 2032?
51%
Kalshi
Will the Republican Party win the 2028 Utah Senate District 2 election?
97%
Kalshi
Will the Republican Party win the 2028 Utah Senate District 3 election?
87%
Kalshi
Will the Republican Party win the 2028 Utah Senate District 4 election?
97%
Kalshi
Will the Republican Party win the 2028 Utah Senate District 8 election?
22%
Kalshi
Will the Republican Party win the 2028 Vermont House Addison-2 election?
4%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.