Kalshi vs Polymarket: Which Prediction Market Platform Is Best for You?

§ 01 Executive Snapshot

• What: Comparison of Kalshi and Polymarket, two leading prediction market platforms.
• Who: Kalshi and Polymarket, both CFTC-regulated platforms.
• Why it matters: Understanding the differences in fees, liquidity, and market offerings can inform traders' choices in prediction markets.

§ 02 Key Developments

• Polymarket controls over 85% of all U.S.-accessible prediction market volume and is available in 48 states plus D.C.
• Kalshi has been CFTC-regulated since 2020 and offers a wider range of funding options, including PayPal and Apple Pay.
• In April 2026, Kalshi processed $14.8 billion in volume, while Polymarket moved about $9 billion in the same month.

§ 03 Strategic Context

• Both platforms are regulated by the CFTC, allowing them to operate across state lines unlike state-licensed sportsbooks, which face stricter limitations.
• The legal landscape for prediction markets is evolving, with ongoing challenges to the CFTC's authority and federal support for regulation.

§ 04 Strategic Implications

• Polymarket's lower fees and deeper liquidity on key political and macro contracts may attract more active traders.
• Kalshi's extensive market catalog and deposit flexibility could appeal to a broader audience, especially in states where Polymarket is not available.

§ 05 Risks & Constraints

• Legal challenges to CFTC regulation could impact operational capabilities and market access for both platforms.
• Competition between the platforms may lead to increased pressure on fees and market offerings.

§ 06 Watchlist / Forward Signals

• Monitor the legal developments regarding CFTC authority and state regulations affecting both platforms.
• Watch for changes in user acquisition strategies and market offerings as both platforms seek to expand their user base and liquidity.