Kalshi vs. Polymarket: Key Differences, Fees & Legal Status

§ 01 Executive Snapshot

• What: A comparative analysis of Kalshi and Polymarket, two leading platforms in the prediction markets space.
• Who: Kalshi, Polymarket, Commodity Futures Trading Commission (CFTC).
• Why it matters: Understanding the differences in regulation, fees, and user experience informs user choices between these platforms.

§ 02 Key Developments

• Kalshi operates as a CFTC-regulated U.S. exchange, allowing event-based contracts in a federally supervised framework.
• Polymarket was initially a crypto-native platform and received CFTC regulatory approval in November 2025 for U.S. access through intermediaries.
• Kalshi offers a straightforward onboarding process with USD funding, while Polymarket requires users to navigate crypto wallets and on-chain transactions.

§ 03 Strategic Context

• The rise of prediction market apps highlights a shift from traditional sportsbooks and polling towards more flexible event-based trading.
• Both platforms cater to different user bases; Kalshi focuses on U.S. retail users, while Polymarket appeals to a global audience with a crypto-centric approach.

§ 04 Strategic Implications

• Kalshi's regulatory status and user-friendly interface may attract mainstream U.S. users, increasing its market share.
• Polymarket's broader event coverage and crypto-native infrastructure position it well for rapid growth in international and niche markets.

§ 05 Risks & Constraints

• Kalshi's operations are subject to CFTC regulations, which may limit its market offerings compared to non-regulated platforms.
• Polymarket faces potential challenges related to crypto volatility and the complexities of on-chain transactions that could hinder user adoption.

§ 06 Watchlist / Forward Signals

• Upcoming developments include Polymarket's continued expansion of its U.S. offerings post-regulation and Kalshi's efforts to enhance liquidity in its markets.
• The success of each platform will depend on user adoption rates and the ability to maintain competitive fee structures and market depth.