Polymarket vs Kalshi: Complete Comparison
Side-by-side platform comparison with real-time market data, pricing, and coverage analysis.
Matched Markets
Key Differences
Regulation & Access
Polymarket is a crypto-native platform built on Polygon, accepting USDC deposits and offering global access. Kalshi is a CFTC-regulated exchange based in the United States, operating with USD and requiring identity verification for all users.
Market Coverage
Polymarket tends to focus heavily on crypto price predictions, political events, and trending cultural topics. Kalshi offers a broader range of categories including weather, economics, and financial markets, with many structured as binary contracts with specific strike prices and expiration dates.
Liquidity & Fees
Polymarket generally has tighter spreads on high-volume crypto markets due to its larger trading community, while Kalshi provides more consistent liquidity across its regulated contract offerings. Polymarket charges dynamic per-token fees while Kalshi uses a fixed fee schedule.
Arbitrage Opportunities
When the same event is priced differently across Polymarket and Kalshi, the price gap represents a potential arbitrage opportunity. PredRadar tracks these differences in real time, calculating the potential profit after platform fees in basis points.