Kalshi backer a16zcrypto notes sports contracts shrinking as share of platform volume
Andreessen Horowitz's a16zcrypto arm, an investor in Kalshi, observed that sports event contracts are declining as a share of total volume on the platform while other categories are growing. The observation, posted June 1 to Casino.org and circulated on X on June 2, offered no specific figures, timeframe, or additional context for the trend. The venture capital firm's note marks one of the few public comments by a major Kalshi backer on the composition of trading activity across the regulated exchange's contract categories. The shift in category mix comes as Kalshi competes with Polymarket and the pending Robinhood-backed Rothera exchange for event-contract volume ahead of the 2026 World Cup.
Any sustained decline in sports share threatens Kalshi's competitive position against Polymarket's OneFootball World Cup pipeline and Robinhood's Rothera soccer launch. Kalshi now must accelerate non-sports category growth to offset the hedging and retail traffic that sports contracts have historically supplied.
Kalshi's platform-specific trend joins Polymarket's OneFootball World Cup deal, Robinhood-backed Rothera's soccer filing, and Wintermute's dual-venue market making as the fourth major platform or investor move this week reshaping where prediction-market volume flows and who captures it.