Comparison · updated July 2026
Polymarket vs Kalshi
Polymarket and Kalshi are two of the most discussed prediction market platforms in the US. Here's a side-by-side look at how they compare on the factors that actually matter for traders.
Polymarket
The largest crypto-settled prediction market for global events.
Kalshi
The first CFTC-regulated event contract exchange in the United States.
Rating
Polymarket
4.3
Kalshi
4.7
Best for
Polymarket
Deepest liquidity and largest market variety
Kalshi
Regulated US event contracts
Regulation
Polymarket
Offshore
Kalshi
CFTC-regulated
US availability
Polymarket
Restricted
Kalshi
Available
Fees
Polymarket
0% trading fees
Kalshi
Up to 2% per trade
Mobile
Polymarket
Good
Kalshi
Excellent
Markets
Polymarket
Politics, Sports, Crypto, Economy, Culture, AI, Entertainment, Technology
Kalshi
Politics, Economy, Sports, Weather, Culture, AI, Financial events
Payment
Polymarket
USDC (Polygon)
Kalshi
ACH, Debit card, Wire transfer
Founded
Polymarket
2020
Kalshi
2018
Verdicts
Who wins, category by category
Final take
Should you choose Polymarket or Kalshi?
Kalshi comes out narrowly ahead in our methodology, but both platforms have a clear lane. Choose Polymarket for deepest liquidity and largest market variety, and Kalshi for regulated us event contracts.