Prediction markets like Kalshi and Polymarket are pulling sports bettors, policy observers, and everyday speculators into the same competitive arena as traditional sportsbooks.
This convergence is placing fresh pressure on established digital betting platforms such as DraftKings (DKNG), Rush Street Interactive (RSI), and Flutter Entertainment (FLUT).
The rapid growth of prediction market platforms presents a rival model that can unsettle the economics that traditional sportsbooks have long relied upon.
DraftKings (DKNG) operates a digital betting platform allowing customers to place sports wagers, play online casino games, participate in daily fantasy contests, and access prediction markets.
The company generates approximately US$6.2 billion in Business-To-Consumer revenue, primarily from its online sportsbook, iGaming, and related digital wagering services, with a market cap of US$9.7 billion.
DraftKings Predictions has recorded over 600,000 customers year to date in 2026, with annualized traded volume rising sharply from US$2.3 billion in April to US$11 billion in July.
The company’s integrated stack, including its DKeX exchange and in-house market maker, positions it to support higher revenue density and potentially stronger net margins over time.
Rush Street Interactive (RSI), operator of BetRivers, PlaySugarHouse, and RushBet, records approximately US$1.37 billion in online gaming and retail sports betting revenue across the Americas.
The company carries a market cap of US$4.4 billion, with roughly US$1.09 billion of its revenue sourced from the US and Canadian markets specifically.
Rush Street Interactive fits squarely within the prediction market disruption theme because its regulated casino and sportsbook infrastructure can accommodate prediction-style wagering alongside traditional betting products.
Key investor considerations for RSI include how unresolved regulatory and tax pressures ultimately affect margins on its growing handle across multiple jurisdictions.
Flutter Entertainment (FLUT), owner of FanDuel and other major betting brands, generates approximately US$7.0 billion from US operations alone, its largest single revenue segment.
Flutter’s additional revenue streams include roughly US$3.6 billion from the UK and Ireland, approximately US$3.5 billion from Southern Europe and Africa, and around US$1.4 billion from Asia Pacific.
Flutter carries a market cap of US$13.8 billion, reflecting its position as one of the largest publicly traded online gambling companies in the world.
FanDuel serves as one of the primary entry points into regulated US sports betting, casino-style play, and emerging prediction features that increasingly resemble what retail traders encounter on newer exchanges.
Flutter noted that “ongoing expansion of online gambling and iGaming in newly regulated and high-growth markets, for example, Brazil and the U.S., is expected to accelerate Flutter’s revenue and earnings, leveraging increasing global internet and smartphone penetration and regulatory liberalization.”
For all three companies, the central question remains how regulatory and tax pressures will shape the profit pools that growing user engagement and trading volumes are beginning to suggest.
Prediction market volume growth is a double-edged dynamic, capable of driving revenue density higher while simultaneously inviting regulatory scrutiny that could compress margins across the sector.
Investors monitoring DKNG, RSI, and FLUT should watch closely for developments in prediction market regulation, product integration strategies, and the pace of geographic expansion throughout the remainder of 2026.
The intersection of traditional sports betting infrastructure and prediction market mechanics represents one of the more consequential structural shifts currently unfolding across the US online gaming industry.
