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 Chris Deluzio be the Democratic nominee for the Senate in Pennsylvania?
24%
▲ +4.5pt
Vol $145 today · $4.7K total
Possibly the same event, on the other platform
Polymarket
Will Chris Murphy win the 2028 Democratic presidential nomination?
0%
Polymarket
Will Chris Van Hollen win the 2028 Democratic presidential nomination?
0%
Polymarket
Will the Democrats win the Texas Senate race in 2026?
68%
Polymarket
Will the Democratic Party control the Senate after the 2026 Midterm elections?
67%
Polymarket
Will the Democrats win the Michigan Senate race in 2026?
70%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.