Prediction markets continued moving into mainstream financial infrastructure this week, even as the legal battle over who gets to regulate them intensified.
The CFTC and several U.S. states escalated their fight over event contracts, Cboe introduced a regulated binary options product with a familiar prediction market payoff, and Polymarket expanded its football portfolio with the Bundesliga.
Here’s what mattered this week.
The State Fight Escalates
The legal battle over prediction markets widened again this week, with new lawsuits filed from both sides. Kentucky sued Kalshi and Polymarket, accusing the platforms of operating illegal sportsbooks under state law.
At the same time, Kalshi asked a federal court to block Illinois from enforcing a new licensing and tax regime that the company says conflicts with the Commodity Exchange Act.
The dispute quickly expanded beyond the platforms. In response to Kentucky’s enforcement actions, the CFTC filed its own lawsuit against the state, arguing that Kentucky is attempting to interfere with federally regulated exchanges and undermine the agency’s exclusive jurisdiction over event contracts.
.@CFTC Sues Kentucky to Prevent Violation of CFTC’s Exclusive Jurisdiction: https://t.co/7XZ57xPil2
— CFTC (@CFTC) June 23, 2026
The cases are part of a broader campaign that now spans multiple states, including Illinois, Minnesota, Rhode Island, Arizona, Connecticut, New York, and Wisconsin. The question before the courts remains the same: where does state gambling law end, and where does federal derivatives regulation begin?
The legal fight is unfolding alongside the CFTC’s formal rulemaking process. This week, the agency opened public consultation on its proposed prediction markets framework, describing it as a transparent process for determining which event contracts serve the public interest and which should be prohibited. The proposal will remain open for public comment for 90 days.
Today, the @CFTC is proposing new data reporting regulations for fully collateralized event contracts.
— Mike Selig (@ChairmanSelig) June 25, 2026
For too long, market participants have relied on a patchwork of swap data reporting no-action letters. Under my leadership, the agency is establishing clear regulations that… https://t.co/9a7ja9rkEO
Cboe Brings Prediction Markets to Wall Street
Cboe has launched Cboe Predicts, introducing binary options on the Mini S&P 500 through the regulated U.S. securities market. The contracts allow traders to take a simple yes-or-no position on where the index will close, using a payoff structure that closely resembles prediction markets.
Unlike event contracts on platforms such as Kalshi, however, they are listed as securities, cleared by the Options Clearing Corporation, and traded under the existing options framework. Interactive Brokers already offers the contracts, with Charles Schwab expected to follow in the coming months.
The launch marks another route by which prediction-style products are reaching mainstream investors. Rather than competing directly with event contract platforms, Cboe is bringing a similar trading format into an established exchange, regulatory, and brokerage ecosystem.
- Google Trends Shows How FIFA World Cup 2026 Sponsorship Turbocharges Prediction Markets
- Inside the Prediction Markets: Kalshi Hits $100B as Questions Keep Piling Up
- Inside the Prediction Markets: Regulators Write the Rules for a Market They Don’t Fully Control
Polymarket Signs the Deal with Bundesliga
Polymarket has become the Bundesliga’s official prediction market partner in the United States, securing exclusive rights to launch markets on Germany’s top football league ahead of the 2026–27 season.
One key piece, however, remains unresolved. While Polymarket has obtained the league’s branding rights, the official match data needed to power those markets is controlled by Sportradar under a separate agreement that has not yet been announced.
That distinction matters because official data determines how quickly markets can update, settle, and expand beyond simple match-winner contracts. Polymarket already has a similar arrangement in place for Serie A through Genius Sports, but the Bundesliga partnership is not yet fully operational.
The deal shows that prediction market partnerships increasingly depend on more than sponsorship rights. As the industry matures, access to official data is becoming as important as access to the leagues themselves.
Number of the Week
Kalshi is reportedly in talks to raise new funding at a valuation of around $40 billion, according to the Financial Times. That would nearly double the $22 billion valuation from its $1 billion round last month. Less than a year ago, Kalshi was valued at about $5 billion.
Bottom Line
U.S. courts are filling up with prediction market lawsuits, but the industry is not waiting for legal clarity. Kalshi, the CFTC, and several states are fighting over where federal derivatives regulation ends and state gambling law begins.
At the same time, Cboe is launching prediction-style products inside the established securities framework, and Polymarket is signing league partnerships that depend on official sports data.
The result is a market developing along two tracks at once: legal uncertainty on one side, product launches and commercial partnerships on the other.
