Polymarket's Low-Fee Liquidity Grab
Polymarket
Near-zero fees are Polymarket's clearest weapon for turning U.S. reentry into a liquidity grab, because in prediction markets the venue with the best price and deepest book tends to attract even more flow. After buying QCEX for $112M, Polymarket can pair regulated U.S. access with its crypto-style execution economics, while Kalshi still monetizes more like a traditional exchange. That matters most in sports, where contracts resolve quickly and traders can recycle capital many times per week.
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Kalshi and Polymarket are already the two gravity centers in the category, and third party infrastructure is being built to route orders across them. That is a sign the market is starting to behave like an exchange business, where lower fees and tighter spreads pull in market makers, then retail follows the liquidity.
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The fee gap is especially important in sports. Sports now drives most volume on Kalshi and roughly half on Polymarket, and fast resolution lets traders reuse the same bankroll over and over. A platform charging 0.01% to 0.04% instead of around 1% can offer meaningfully better net pricing on every round trip.
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Buying a CFTC-licensed exchange is expensive and slow, which is why the QCEX deal matters beyond compliance. It gives Polymarket the regulatory shell to enter the same market as Kalshi, while using a much cheaper pricing model to position itself as the backend venue that brokers, sportsbooks, and apps plug into.
The next phase is a race to become the default liquidity layer for U.S. event contracts. If Polymarket can keep fees near zero while operating under QCEX, it can force the market toward exchange-style economics, compress take rates across the sector, and make scale and order flow more important than headline fees as prediction markets mature.