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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Who will win the 2028 United States vice presidential election?
1%
– 0.5pt
Vol $20 today · $20 total
Possibly the same event, on the other platform
Polymarket
Will Elon Musk win the 2028 US Presidential Election?
0%
Polymarket
Will JD Vance win the 2028 US Presidential Election?
18%
Polymarket
Will Kamala Harris win the 2028 US Presidential Election?
4%
Polymarket
Will Jon Ossoff win the 2028 US Presidential Election?
9%
Polymarket
Will Gavin Newsom win the 2028 US Presidential Election?
12%
Polymarket
Will Marco Rubio win the 2028 US Presidential Election?
10%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.