Key Takeaways
- Kalshi controls 89% of U.S. prediction market volume according to Bank of America data
- Overall prediction market weekly volume increased 4%, while Polymarket experienced a 16% decline
- Federal regulators filed lawsuits against Arizona, Connecticut, and Illinois on April 2, 2026 regarding state enforcement actions
- Federal appeals court in New Jersey ruled in favor of Kalshi on April 6, 2026
- Legal conflicts between federal and state authorities will shape the future of the prediction market industry
The U.S. prediction market sector continues expanding while jurisdictional disputes between federal agencies and state governments reshape the competitive landscape.
Bank of America data reveals overall weekly volume climbed 4% week-over-week. Kalshi experienced a 6% volume increase. Polymarket recorded a 16% volume decline during the same timeframe.
Kalshi commands approximately 89% of tracked U.S. prediction market volume. Polymarket accounts for 7% while Crypto.com represents 4%, based on Bank of America analysis.
Regulatory positioning explains the disparity between platforms. Kalshi operates as a Commodity Futures Trading Commission (CFTC) registrant, positioning its offerings as federally supervised derivatives. Polymarket functions through blockchain technology and has primarily operated beyond traditional U.S. regulatory frameworks.
State authorities have mounted resistance. Nevada and Massachusetts secured preliminary injunctions targeting Kalshi. Arizona advanced further in March 2026 by pursuing criminal charges against the company — marking the first criminal prosecution ever directed at a CFTC-registered entity.
Federal Agencies Launch Legal Action Against State Governments
The CFTC and Department of Justice initiated three distinct federal lawsuits on April 2, 2026 against Arizona, Connecticut, and Illinois. The legal actions specifically name state governors and senior officials.
The CFTC characterized the action as “unprecedented” and stated the lawsuits were essential to preserve its exclusive authority over event contracts under the Commodity Exchange Act.
Connecticut distributed cease-and-desist notices targeting sports-focused contracts. Illinois implemented similar measures. Arizona pursued 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 authorities remain committed to their positions. 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 Appeals Court Rules in Favor of Kalshi
The U.S. Court of Appeals for the Third Circuit issued 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 court determined that Kalshi’s event contracts qualify as “swaps” under the Commodity Exchange Act, establishing exclusive CFTC jurisdiction. This decision represents the first federal appellate precedent addressing this jurisdictional question.
Kalshi CEO Tarek Mansour described the decision as “a big win for the industry.”
Should federal regulators succeed in pending litigation, platforms like Kalshi would operate within a unified national regulatory structure. Adverse outcomes could fragment the industry into state-specific frameworks resembling the current online sports wagering model.
Binance revealed on April 10, 2026 that it integrated a prediction markets feature into Binance Wallet, demonstrating sustained engagement from leading cryptocurrency platforms in this sector.
The CFTC maintains an active public comment period through the end of April for an Advanced Notice of Proposed Rulemaking addressing prediction market regulation.
