Scale Economics Favor Kalshi and Integrators

This market is turning into a distribution and liquidity game, which usually favors the biggest pipes over the best niche product. Kalshi already has the broadest regulated footprint and a low fee exchange model, while DraftKings and FanDuel can plug prediction contracts into apps that already have millions of sports users. That makes it harder for smaller standalone venues to afford customer acquisition, maintain tight spreads, and keep enough order flow on each market.

• Kalshi’s advantage is not just brand. It operates as a federally regulated event exchange in all 50 states, charges roughly 1% on volume, and built scale quickly after the 2024 election, with sports becoming most of its trading. More traders on one venue means deeper books and better prices, which attracts still more traders.
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• The integrated operators attack from the other direction. DraftKings acquired Railbird on October 21, 2025 to get a CFTC licensed exchange, and FanDuel partnered with CME to launch FanDuel Predicts. Both can surface contracts inside existing betting flows instead of paying to build a new audience from scratch.
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• There is still room for niche platforms, but mostly where they own a specific audience or workflow. The strongest case is not being another general purpose venue, it is serving local, category specific, or embedded use cases that can borrow liquidity from larger exchanges or aggregators instead of creating it alone.
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The next phase looks more like exchange infrastructure than consumer app proliferation. A few large venues should capture most generic sports and financial order flow, while smaller players survive by becoming skins, brokers, or vertical specialists tied into those liquidity hubs. In that structure, owning customers or owning flow matters more than owning a standalone market brand.