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.
Possibly the same event, on the other platform
Polymarket
Will there be a Hormuz agreement and the Democrats win the Senate?
5%
Polymarket
Will the Democrats win the Michigan Senate race in 2026?
71%
Polymarket
Will the Democrats win the Texas Senate race in 2026?
63%
Polymarket
Will oil be at least $85 on November 2 and the Democrats win the Senate?
60%
Polymarket
Will oil be below $85 on November 2 and the Democrats win the Senate?
6%
Polymarket
Will Kamala Harris win the 2028 Democratic presidential nomination?
7%
Change ×
Will the Democratic party win the House, the Democratic party win the Senate, and the Democratic party win the Presidency?
49%
▲ +2.5pt
Vol $98 today · $124.9K total
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.