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 Matthew McConaughey announce a run for President of the United States in 2028?
5%
– 0.5pt
Vol $0 today · $174 total
Possibly the same event, on the other platform
Polymarket
Will Elon Musk win the 2028 US Presidential Election?
0%
Polymarket
Will Ivanka Trump win the 2028 US Presidential Election?
1%
Polymarket
Will Gavin Newsom win the 2028 US Presidential Election?
9%
Polymarket
Will Thomas Massie win the 2028 US Presidential Election?
1%
Polymarket
Will JD Vance win the 2028 US Presidential Election?
20%
Polymarket
Will Mark Kelly win the 2028 US Presidential Election?
1%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.