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.
Possibly the same event, on the other platform
Kalshi
Will Donald Trump announce a run for President of the United States before Nov …
17%
Kalshi
Will Donald J. Trump Jr. be the nominee for the Presidency for the Republican p…
2%
Kalshi
Who will win the 2028 United States vice presidential election?
11%
Kalshi
Will Marco Rubio and Donald Trump be the 2028 Republican Presidential ticket?
2%
Kalshi
Will Donald Trump endorse J.D. Vance in the 2028 presidential election before M…
48%
Kalshi
Will Donald J. Trump be the nominee for the Presidency for the Republican party?
2%
Change ×
Will Donald Trump Jr. win the 2028 US Presidential Election?
1%
– 0.0pt
Vol $666 today · $14.1M total
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.