The archive · Money & Fintech · Strategic decision · 2018–2026
Kalshi: regulated event-trading app tops US sportsbook downloads
CFTC-regulated event-contract exchange whose app hit 3M+ US downloads in Jan 2026 and 42.3% of betting-app installs in the World Cup window.
Kalshi (KalshiEX LLC)
What the business is
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.
How it started
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.
What happened
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.
How it ended up
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.
Background
Kalshi is a New York prediction-market exchange that lets consumers buy and sell event contracts on sports, weather, finance and culture outcomes, regulated by the CFTC rather than state gambling commissions. Founded in 2018, it took the compliance-first path — suing the CFTC and winning the right for Americans to use the platform — and stayed a niche fintech product until it expanded into sports contracts in 2025.
The app turned into a chart story during football season. Apptopia data reported by Bloomberg and PYMNTS showed Kalshi with more than 3 million US downloads in January 2026 — more than four times DraftKings and FanDuel each, and the first time any US sportsbook, real-money gaming or fantasy app had reached 3 million downloads in a month. In August 2025, before the sports push, the app had only about a third of those rivals' downloads.
The World Cup kept the momentum through June 2026. Apptopia measured Kalshi at 42.3% of new installs among major sportsbook and prediction-market apps in the first half of June, with all-time mobile DAU highs on June 14–15; more than half of Kalshi users in the tournament's first 72 hours were new to the app. Kalshi also posted a record $6.38B in weekly notional volume the week of June 8.
Capital tracked the usage curve: $300M at a $5B valuation in October 2025, a $1B Series E at $11B in late 2025, and a $1B Series F at $22B in May 2026 led by Coatue, with annualized revenue above $1.5B and roughly 90% of US prediction-market activity. The unresolved test is whether tournament-driven first-time users stay after the events end — and how state-level challenges to its licensing model play out.
What has to be true
- 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.
What can be applied
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.
Aftermath
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.
Sources
- Kalshi doubles valuation in 5 months, hitting $22B
- Kalshi Overtakes DraftKings and FanDuel in Download Race
- Kalshi downloads surpass major sportsbooks ahead of Super Bowl LX
- Kalshi, Polymarket Capture Nearly Three-Quarters Of Betting App Downloads During World Cup Surge
- Kalshi hits $5B valuation days after rival Polymarket gets $2B NYSE backing at $8B
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