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 Monica Crowley be the next White House Press Secretary before Jan 20, 2029?
1%
Kalshi
Will Steven Cheung be the next White House Press Secretary before Jan 20, 2029?
2%
Kalshi
Will Scott Jennings be the next White House Press Secretary before Jan 20, 2029?
13%
Kalshi
Will Elizabeth Pipko be the next White House Press Secretary before Jan 20, 202…
6%
Kalshi
Will Anna Kelly be the next White House Press Secretary before Jan 20, 2029?
15%
Kalshi
Will Danielle Alvarez be the next White House Press Secretary before Jan 20, 20…
3%
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Next White House Press Secretary announced by October 31, 2026?
10%
▼ 6.0pt
Vol $20K today · $246.4K total
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.