Regulatory Action Against Polymarket
On January 20, 2026, Portugal's gambling regulator, the Serviço de Regulação e Inspeção de Jogos (SRIJ), ordered the cryptocurrency prediction platform Polymarket to cease operations. The SRIJ cited unauthorized online gambling activities and violations of national laws prohibiting political event betting as the reasons for the directive. The platform was expected to be blocked within 48 hours.
This action highlights the ongoing regulatory challenges faced by cryptocurrency platforms in Portugal. Concerns have been raised regarding potential insider trading and the risk to user funds following the SRIJ's intervention.
Suspicious Trading Activity Precedes Ban
Prior to the regulatory action, a significant surge in trading activity was observed on Polymarket, particularly concerning the Portuguese presidential election market. Approximately €4 million entered the market before the election results were officially announced. This timing has raised concerns about the potential leakage of premature results and has prompted the SRIJ's strict enforcement measures aimed at preventing illegal trade practices through comprehensive oversight.
Accessibility and Industry Monitoring
Despite the compliance notice issued by the SRIJ, Polymarket has reportedly remained accessible to Portuguese users, sparking debates about the limitations of jurisdictional enforcement. While no primary source statements from Polymarket's executives directly addressing the SRIJ order were found on official channels, industry professionals are closely monitoring the situation for further legal developments or platform responses.
Historical Precedents and Market Context
Polymarket's current situation is not unprecedented, as the platform has previously faced geo-blocks in other regions, including Australia and Ukraine. These past incidents have contributed to shaping regulatory frameworks for prediction markets globally.
The core trading collateral for Polymarket, USDC, has maintained a stable price of $1 with a substantial market capitalization. Trading volumes on the platform have been significant, indicating considerable activity despite the ongoing regulatory challenges. The 24-hour price movement for USDC has remained unchanged.

Future Outlook for Prediction Markets
Analysts suggest that the Polymarket incident could lead to potential regulatory tightening impacting prediction markets worldwide. Historical precedents indicate that such markets may either pivot towards greater compliance or face increased enforcement risks, which could influence future technological adaptations within the industry.

