Kalshi: regulated event-trading app tops US sportsbook downloads

Kalshi runs a CFTC-regulated exchange where consumers buy and sell event contracts — bets on sports, weather, finance and culture outcomes — through an app that competes directly with sportsbooks.

That Americans will bet on sports through a federally regulated exchange, not state sportsbooks — and that this compliance-first app can out-download incumbents.

Kalshi was founded in 2018 to build the first CFTC-regulated exchange where consumers could trade contracts on the outcome of real-world events. The founders chose the compliance path over crypto-native rivals and, after suing the CFTC, secured the right for Americans to use the platform; TechCrunch noted the prediction market's turn from niche product to boom began last year. As recently as August 2025 the app had roughly a third of the downloads of the biggest sportsbooks.

Growth arrived with sports: Kalshi expanded into football contracts ahead of the 2025 season, and the Super Bowl window made it a chart story — 3M+ US downloads in January 2026. Capital followed: $300M at a $5B valuation in Oct 2025 (Sequoia and a16z, with 140 countries opened), a $1B Series E at $11B in late 2025, and a $1B Series F at $22B in May 2026 led by Coatue. TechCrunch reported annualized revenue above $1.5B, institutional trading up 800% in six months, and 90% of US prediction-market activity.

Still scaling as of 2026-09-02: Kalshi is the US category leader by users and volume, with the World Cup window setting all-time mobile DAU records. The open question is retention after tournaments, plus state-level challenges such as Massachusetts' injunction while Kalshi lacks a state gaming license.

Federal over state: CFTC-regulated event contracts work in all 50 states, while sportsbooks need state-by-state licenses — and users chose Kalshi even where sports betting is legal.

Sports as an acquisition engine: football, the Super Bowl and the World Cup produced download spikes, taking Kalshi from a third of sportsbook downloads in Aug 2025 to 4x them by January 2026.

A different first-time user: over half of Kalshi's World Cup users were new to the app, with 18–25-year-olds its fastest-growing segment — people sportsbooks cannot always serve.

Media and regulator tailwind: prediction markets were newly framed as a federally regulated asset class, giving a compliance-first exchange a story that crypto-native rivals could not tell in the US.

Compliance can be a moat, not a tax: while sportsbooks were bound to state licenses, Kalshi's federally regulated exchange won users in every state.

As of 2026-09-02, Kalshi is the leading US prediction-market platform: TechCrunch reported roughly 90% of US prediction-market activity, over $1.5B annualized revenue, institutional trading up 800% in six months, and a $22B valuation from its May 2026 Series F. The app set all-time DAU records during the 2026 World Cup, though Apptopia's analysts flag post-tournament retention as the open question. Legal overhang remains — Massachusetts secured a preliminary injunction against Kalshi's sports contracts in January 2026 while it lacks a state gaming license — and Polymarket keeps competing.