Key Takeaways
- Bank of America data shows Kalshi commanding 89% of U.S. prediction market volume
- Overall prediction market activity increased 4% weekly, though Polymarket declined 16%
- Federal regulators filed lawsuits against Arizona, Connecticut, and Illinois on April 2, 2026 regarding state gambling enforcement actions
- Third Circuit Court of Appeals ruled in Kalshi’s favor against New Jersey on April 6, 2026
- Resolution of federal versus state jurisdiction battles will shape the industry’s future trajectory
The U.S. prediction market sector continues expanding, yet an escalating jurisdictional dispute between federal oversight agencies and state authorities is shaping the industry’s evolution.
Recent Bank of America analysis indicates overall weekly trading activity climbed 4% compared to the previous week. Kalshi experienced 6% growth during this period. Meanwhile, Polymarket registered a 16% decline in trading volume.
Kalshi currently controls approximately 89% of tracked U.S. prediction market activity. Polymarket accounts for 7% while Crypto.com represents 4%, based on Bank of America’s calculations.
Regulatory positioning explains the disparity among platforms. Kalshi operates as a CFTC-registered entity, positioning its offerings as federally supervised derivative instruments. Polymarket functions through blockchain technology and has traditionally operated beyond U.S. regulatory frameworks.
State authorities are mounting challenges. Nevada and Massachusetts secured preliminary court orders against Kalshi. Arizona escalated matters in March 2026 by pursuing criminal proceedings against the platform—marking the first criminal case ever brought against a CFTC-registered entity.
Federal Agencies Launch Lawsuits Against State Governments
The CFTC and Department of Justice initiated three distinct federal legal actions on April 2, 2026 targeting Arizona, Connecticut, and Illinois. The complaints specifically name state governors and regulatory officials.
The CFTC characterized the action as “unprecedented” and justified it as essential to preserve its exclusive oversight of event-based contracts under the Commodity Exchange Act.
Connecticut distributed cease-and-desist notices targeting sports-focused contracts. Illinois pursued similar enforcement measures. Arizona advanced to criminal prosecution.
CFTC Chairman Michael Selig stated: “The CFTC will continue to safeguard its exclusive regulatory authority over these markets and defend market participants against overzealous state regulators.”
State officials remain defiant. Connecticut Attorney General William Tong characterized the contracts as “plainly unlicensed illegal gambling.” An Illinois representative argued the companies subject residents to products lacking “basic consumer protections.”
Federal Appellate Court Rules for Kalshi
The U.S. Court of Appeals for the Third Circuit delivered a 2-1 decision favoring Kalshi on April 6, 2026. The ruling prevents New Jersey gaming authorities from enforcing state gambling statutes against Kalshi’s operations.
The appellate panel determined that Kalshi’s event-based contracts qualify as “swaps” under the Commodity Exchange Act, establishing CFTC exclusive authority. This represented the first federal appeals court interpretation on this jurisdictional question.
Kalshi CEO Tarek Mansour described it as “a big win for the industry.”
Should federal authorities succeed in pending litigation, platforms such as Kalshi might function under unified national regulations. Conversely, unfavorable outcomes could fragment the sector into state-specific regulatory regimes, mirroring the current online sports wagering landscape.
Binance revealed on April 10, 2026 its integration of prediction market functionality into Binance Wallet, demonstrating sustained engagement from prominent cryptocurrency platforms in this sector.
The CFTC maintains an active public feedback window through April’s end regarding an Advanced Notice of Proposed Rulemaking addressing prediction market oversight.
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