The 6th US Circuit Court of Appeals ruled against prediction market Kalshi in early 2026, siding with the states of Ohio and Tennessee in their quest to regulate sports-event contracts. The court determined that these specific contracts fall under the definition of gambling within those states, allowing local regulators to enforce bans despite Kalshi’s status as a federally regulated exchange. This creates a significant hurdle for the platform, which had sought to offer a unified national market for event-based derivatives.
The conflict arose from Kalshi’s argument that federal oversight by the Commodity Futures Trading Commission (CFTC) should protect its operations from a 'patchwork' of differing state laws. However, the appellate court found that state police powers regarding public morals and gambling are not easily overridden by federal commodities law unless explicitly stated by Congress. This ruling emboldens other states to pursue similar restrictions against event-based markets that overlap with traditional sports betting.
For the broader crypto and DeFi ecosystem, this ruling is a cautionary tale regarding jurisdictional reach. While Kalshi is a centralized exchange, the legal precedent could eventually extend to decentralized prediction markets like Polymarket if they are found to have sufficient ties to U.S. users or infrastructure. The threat of state-by-state litigation increases operational costs and reduces the liquidity available to U.S. traders, who may find themselves blocked based on their geographic location.
Looking ahead, Kalshi is expected to petition the U.S. Supreme Court to resolve this conflict between state and federal authority. Market participants should monitor whether other circuit courts create a 'circuit split' by ruling in favor of federal preemption in similar cases. Until a final SCOTUS ruling is issued, prediction markets operating in the U.S. face a fragmented regulatory environment that could stifle the growth of sports-related prediction contracts throughout the 2026 election and sports cycles.