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 Anthropic not IPO by December 31, 2027?
4%
Polymarket
Will Predict.fun launch a token by December 31, 2027?
99%
Polymarket
Russia x Ukraine ceasefire agreement by December 31, 2027?
71%
Polymarket
Netanyahu out by March 31, 2027?
28%
Polymarket
Russia x Ukraine ceasefire agreement by March 31, 2027?
36%
Polymarket
Russia x Ukraine ceasefire agreement by May 31, 2027?
52%
Informational only — not financial advice. Odds are mirrored from each platform and may lag the live order book.