Polymarket vs. Kalshi
Compare markets
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.
Change ×
Will the Democratic Party win the popular vote in the 2026 U.S. House of Representatives midterm elections by between 10% and 12%?
3%
– 0.5pt
Vol $5.4K today · $39.2K 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 Chittenden-12 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 Washington House District 12, Position 1…
39%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.