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 Donald Trump Jr. win the 2028 US Presidential Election?
1%
– 0.0pt
Vol $203 today · $14.1M total
Possibly the same event, on the other platform
Kalshi
Will Donald Trump announce a run for President of the United States before Nov …
19%
Kalshi
Will Donald J. Trump Jr. be the nominee for the Presidency for the Republican p…
3%
Kalshi
Will Donald J. Trump Jr. be the nominee for the Vice Presidency for the Republi…
4%
Kalshi
Who will win the 2028 United States vice presidential election?
5%
Kalshi
Will Robert F. Kennedy Jr. announce a run for President of the United States in…
29%
Kalshi
Will Donald Trump endorse Himself in the 2028 presidential election before Mar …
5%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.