Netherland, Feb 21: The Dutch gambling regulator has moved to block access to the prediction market platform Polymarket, saying the company is offering betting services in the country without the required license.
In a statement released Tuesday, the Netherlands Gambling Authority (Ksa) confirmed it has issued a penalty order against Adventure One QSS Inc., the operator behind Polymarket. The regulator has instructed the company to immediately stop providing services to users in the Netherlands.
If the platform does not comply, it could face fines of €420,000 per week, up to a maximum of €840,000.
Ella Seijsener, the Ksa’s director of licensing and supervision, said prediction markets are becoming increasingly popular but warned that many of the bets offered are not permitted under Dutch law — even for licensed operators.
“Only companies that hold a Ksa license are allowed to operate in our market,” she said, adding that the rules apply equally to newer digital platforms. Dutch authorities have also voiced concerns about the broader societal impact of prediction markets, particularly when they involve political or election-related outcomes.
Growing Scrutiny of Prediction Markets The enforcement action comes at a time of rapid growth in the global prediction market industry. Platforms such as Polymarket and its U.S.-based competitor Kalshi have expanded significantly in recent years, particularly around major global events.
Supporters argue these platforms function as financial marketplaces where users trade on the probability of real-world events. Critics, however, say that when people stake money on uncertain outcomes in exchange for potential financial gain, the activity closely resembles gambling.
The regulatory debate has intensified as prediction markets expand beyond sports and economics into politics and public policy. Dutch regulators have made clear that they focus on how a product operates in practice, rather than how it is described. If users risk value on unpredictable events and can earn financial rewards, authorities may classify the activity as gambling under national law. Industry Pushback and Legal Challenges
Polymarket declined to comment on the Dutch decision. Companies in the sector continue to defend their business models. Executives at Kalshi, for example, have described their offerings as “event contracts,” arguing that they function more like financial instruments than traditional bets.
Despite these claims, prediction market operators are facing mounting legal pressure worldwide. In the United States and other jurisdictions, lawsuits and regulatory investigations are challenging whether such platforms are operating as unlicensed sportsbooks.
The Dutch action reflects the country’s traditionally strict approach to gambling oversight. Authorities require operators to secure proper authorization before serving local users and to meet stringent standards related to consumer protection and anti-money laundering compliance.
Regulators in the Netherlands have emphasized that innovation does not exempt companies from existing legal frameworks. Even if prediction markets offer insights or forecasting value, they must still comply with national gambling laws when financial risk is involved.
A Broader Regulatory Trend The move against Polymarket signals a wider trend of increased oversight of emerging financial and digital betting platforms. As prediction markets grow in popularity and transaction volumes rise globally, regulators are grappling with how to fit these hybrid models into established legal categories.
For now, Dutch authorities have drawn a firm line: platforms that allow users to wager on uncertain events must obtain a gambling license or leave the market.
Whether other countries will follow a similar path remains to be seen, but the regulatory spotlight on prediction markets is clearly intensifying.
