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 the Democratic Party win the popular vote in the 2026 U.S. House of Representatives midterm elections by between 8% and 10%?
1%
▲ +1.0pt
Vol $5.5K today · $31.4K total
Possibly the same event, on the other platform
Kalshi
Will the Democratic Party win the 2028 Vermont House Chittenden-10 election?
94%
Kalshi
Will the Democratic Party win the 2028 Vermont House Rutland-10 election?
21%
Kalshi
Will the Democratic Party win the 2028 Washington House District 10, Position 1…
92%
Kalshi
Will the Democratic Party win the 2028 Washington House District 10, Position 2…
92%
Kalshi
Will the Democratic Party win the 2028 West Virginia House of Delegates Distric…
4%
Kalshi
Will the Democratic Party win the 2028 Vermont House Addison-2 election?
94%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.