Polymarket vs Kalshi: Which Should You Choose in 2026?
A detailed head-to-head on fees, liquidity, regulation and UX.
Polymarket and Kalshi are the two biggest names in prediction markets — but they solve different problems for different traders.
Kalshi wins on regulation: it's a CFTC-registered US exchange with dollar deposits, insured cash, and a slick mobile app. If you're a US resident who wants zero legal ambiguity, Kalshi is the obvious pick.
Polymarket wins on liquidity, market variety and cost. Fees are zero, there are thousands of active markets, and depth on flagship contracts is orders of magnitude higher.
Verdict: use Kalshi for a compliant US dollar experience, and Polymarket when you want the widest, deepest markets on the planet.
Prediction Market Reviews
Latest guides
What Are Prediction Markets?
A plain-English intro to prediction markets, how they price probability, and why they beat pundits.
How to Read Prediction Market Odds
Odds, probability, spread and volume — explained without jargon.
Are Prediction Markets Legal in Your Country?
A country-by-country rundown of prediction market legality.