Key Points
- Ohio joins Nevada as states prohibited from prediction market advertising on Google’s platform
- Advertising restriction implemented June 2, 2026, modifying policy introduced five months earlier
- Federal judge denied Kalshi’s attempt to prevent Ohio enforcement actions
- State regulators imposed $5 million penalty on Kalshi for operating without gambling license
- Google’s initial January 2026 policy permitted such advertisements nationwide with limited exceptions
Google has implemented a prohibition on advertising for prediction market platforms in Ohio through its advertising network. The restriction became active June 2, 2026, representing a significant modification to the company’s relatively new advertising guidelines.
The tech giant’s initial prediction market advertising framework, rolled out in January 2026, permitted event contract platforms to promote their services throughout most of the United States. From the outset, Ohio and Nevada faced exclusions. The recent June policy revision solidifies Ohio’s prohibition status.
According to Google’s Advertising Policy documentation: “Advertising of prediction markets and related products in Ohio is prohibited effective June 2, 2026.” The company has not publicly disclosed the rationale behind this decision.
Legal Conflict Between Ohio Regulators and Prediction Markets
Throughout much of 2026, Ohio has engaged in ongoing legal confrontations with prediction market operators. State authorities maintain that event-based contracts linked to sporting events constitute illegal gambling activity under state statutes when conducted without proper licensing.
Kalshi, a prominent prediction market exchange operating under CFTC oversight, sought judicial intervention to prevent Ohio enforcement agencies from pursuing action. The platform contended that its operations fall exclusively under federal regulatory authority via the Commodity Exchange Act.
Federal Chief Judge Sarah Morrison dismissed Kalshi’s position. Her ruling determined that the company failed to establish that its contract offerings received complete coverage under CFTC regulatory authority, thereby permitting Ohio to proceed with enforcement measures.
Judge Morrison’s decision highlighted that the CFTC’s lack of decisive action undermined Kalshi’s legal arguments. The company has indicated its intention to pursue an appellate challenge.
Multi-Million Dollar Regulatory Penalty
Following the unfavorable court decision, Ohio enforcement authorities escalated their response. The Ohio Casino Control Commission levied a $5 million financial penalty against Kalshi for conducting operations without obtaining a state gambling license.
This substantial fine resulted from coordinated action between the Ohio Casino Control Commission and the state attorney general’s office, both parties named in Kalshi’s unsuccessful injunction petition.
Ohio’s regulatory stance asserts that federal oversight of these financial instruments does not preempt state jurisdiction over gambling-related operations. The federal court concurred that the Commodity Exchange Act does not explicitly supersede state gambling regulations.
Nevada Maintains Separate Restrictions
Nevada has maintained its exclusion from Google’s prediction market advertising policy since implementation. The state’s Gaming Control Board maintains rigorous licensing requirements, and prediction market platforms have not secured operational authorization within its borders.
This positions Ohio and Nevada as the only two jurisdictions where prediction market companies face advertising restrictions through Google’s platform currently.
Google classifies prediction markets as a restricted advertising vertical. The company characterizes them as services offering access to exchange-traded event contracts centered on economic indicators, sporting competitions, or current affairs.
Kalshi’s appellate challenge remains under consideration. The final determination may influence regulatory approaches adopted by additional states regarding CFTC-registered prediction market platforms in subsequent proceedings.
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