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Paris – France’s national gambling authority, the Autorité Nationale des Jeux (ANJ), is raising concerns about the addictive potential of online platforms allowing users to bet on the outcomes of political and sporting events. The ANJ warns these sites, which have seen a surge in popularity, present risks similar to traditional online gambling but lack the same regulatory protections for users.
The regulatory body emphasizes that these prediction markets are currently considered illegal gambling operations within France. The ANJ has requested that internet service providers implement “geoblocking” measures to prevent French users from accessing these platforms, with the exception of those utilizing Virtual Private Networks (VPNs). This action underscores a growing international effort to regulate these increasingly popular, and potentially harmful, online spaces.
The rise of prediction markets, particularly platforms like Polymarket and Kalshi, has been notable, especially following the 2024 US presidential election. According to the ANJ, cumulative transaction volumes on these major global platforms exceeded $27.9 billion (23.7 billion euros) between January and October 2025. Revenue generated by these platforms is estimated at $2 billion (1.70 billion euros), primarily through transaction fees, according to a study by Citizens.
Addictive Characteristics and Lack of Protection
The ANJ’s primary concern stems from the addictive characteristics inherent in these prediction sites, which it says are amplified by the absence of safeguards commonly found in licensed online gambling environments. “As these prediction sites present several addictive characteristics similar to those observed for online gambling, but amplified due to the absence of protection mechanisms existing on the legal gambling market, the ANJ calls on users to exercise caution,” the authority stated in a press release.
These protections, typically mandated for licensed operators, include tools for self-exclusion, deposit limits, and responsible gambling messaging. The lack of such features on prediction markets leaves users vulnerable to developing problematic gambling behaviors.
International Crackdown and Legal Challenges
France is not alone in its efforts to regulate these platforms. Several other European countries – including Germany, Belgium, Romania, Switzerland, the Netherlands, Poland, Greece, Cyprus, Ukraine, and Portugal – have also blocked access to Polymarket, citing concerns about unlicensed gambling services.
The situation in the United States is more complex. Even as Polymarket received authorization from the Commodity Futures Trading Commission (CFTC) in November 2025 to offer betting to American residents, the Nevada Gaming Control Board has filed a lawsuit against the platform, arguing that its prediction markets constitute illegal gambling and should be subject to blocking measures. This legal challenge highlights the ongoing debate over the regulatory status of these platforms.
The ANJ’s Role and Future Outlook
The ANJ, established by an ordinance in 2019, operates as an independent administrative authority reporting directly to the French Parliament. As detailed on its official website, the ANJ’s mandate includes regulating licensed gambling and betting games, protecting players, and combating illegal gambling activities. Isabelle Falque-Pierrotin currently serves as the President of the ANJ, appointed to a six-year term by decree of the French President.
The ANJ’s warning signals a potential global trend towards increased scrutiny and regulation of prediction markets. As these platforms continue to grow in popularity, governments worldwide will likely grapple with how to balance innovation with the need to protect consumers from the risks associated with gambling-like activities. The outcome of the Nevada Gaming Control Board’s lawsuit against Polymarket will be a key indicator of the direction this regulation may capture.
What remains to be seen is whether a coordinated international approach will emerge to address the challenges posed by these platforms. The ANJ’s actions demonstrate a commitment to safeguarding French citizens, and its stance may encourage other nations to follow suit.
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