Polymarket growth vs Kalshi compliance

Polymarket’s edge is that crypto rails let it scale liquidity faster than a U.S. regulated exchange, but that same structure keeps it outside the easiest path to mainstream American adoption. It grew from $73M of volume in 2023 to about $9B in 2024, far ahead of Kalshi’s $1.97B, because it could pull in global traders and charge zero trading fees. But Kalshi’s CFTC designation gives it a cleaner path to U.S. users who want to fund an account with dollars and trade inside a regulated venue.

• Polymarket is borderless in practice because its markets settle in USDC on Polygon and deposits can come from multiple chains and payment methods. That makes it easier to aggregate global liquidity, but users still need to understand wallets, stablecoins, or bridging steps that many sportsbook and brokerage users have never touched.
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• Kalshi spent years getting designated as a CFTC contract market, which means it can operate as a regulated U.S. event exchange. That approval is the reason institutions, market makers, and mainstream retail can treat it more like a financial venue than an offshore crypto app.
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• The practical tradeoff is product speed versus compliance. Polymarket can launch broad global markets with very low fees and fast crypto settlement, while Kalshi carries more regulatory overhead and a roughly 1% take rate, but gets lawful U.S. distribution that Polymarket lacked after its 2022 CFTC settlement.
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The market is heading toward a blend of these models. The winner will combine Polymarket’s liquidity density and low cost with Kalshi’s regulatory access, because sports and event trading are becoming mainstream consumer products and the biggest distribution channels in the U.S. will favor venues that can plug into the financial system cleanly.