Prediction markets reached $50B in June volume, with Kalshi and Polymarket controlling 78.5% of betting app installs.
DeFi & Yields ·
Prediction markets reached $50 billion in trading volume during June, with Kalshi and Polymarket commanding 78.5% of betting app installations. The surge reflects growing adoption of event-contract trading platforms as alternatives to traditional betting venues. Kalshi operates as a CFTC-regulated designated contract market, distinguishing itself through federal oversight and institutional-grade compliance rather than operating as an unregulated sportsbook, while Polymarket has emerged as a major competitor in the same space.
The market concentration around these two platforms underscores their dominance in attracting retail and institutional participants seeking to trade contracts tied to real-world outcomes. Both venues have expanded their product offerings and regulatory standing in recent months, with Kalshi pursuing multiple sports and election event listings and navigating state-level legal challenges, while Polymarket continues scaling its user base across geographies.
It remains unclear whether this market concentration will persist as new competitors enter or whether regulatory developments at the federal and state level will reshape the competitive landscape. The $50 billion volume figure and the specific breakdown of app-install share have not been independently corroborated by other publicly available sources beyond the reporting cited.