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 House, the Republican party win the Senate, and the Democratic party win the Presidency?
7%
– 0.0pt
Vol $78 today · $41.5K total
Possibly the same event, on the other platform
Polymarket
Will the Republicans win the Nebraska Senate race in 2026?
71%
Polymarket
Will the Republicans win the Texas Senate race in 2026?
38%
Polymarket
Will the Democrats win the Texas Senate race in 2026?
63%
Polymarket
Will J.D. Vance win the 2028 Republican presidential nomination?
46%
Polymarket
Will J.B. Pritzker win the 2028 Democratic presidential nomination?
1%
Polymarket
Will MrBeast win the 2028 Democratic presidential nomination?
0%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.