Polymarket vs. Kalshi
Compare markets
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
Polymarket
Will Iliana Iotova win the next Bulgarian presidential election?
75%
Polymarket
Will Аndrey Gyurov win the next Bulgarian presidential election?
24%
Polymarket
Will Kostadin Kostadinov win the next Bulgarian presidential election?
0%
Polymarket
Will Elon Musk win the 2028 US Presidential Election?
0%
Polymarket
Will Michelle Obama win the 2028 US Presidential Election?
0%
Polymarket
Will Gretchen Whitmer win the 2028 US Presidential Election?
0%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.