Spain has temporarily blocked prediction market platforms Polymarket and Kalshi, marking another major regulatory move against the fast growing event trading industry in Europe.
Key Takeaways
- Spain temporarily banned Polymarket and Kalshi for operating without gambling licences.
- Authorities opened a formal investigation that could last up to four months.
- Regulators cited missing consumer protection systems including identity verification and age controls.
- The move adds to growing global pressure on prediction markets across Europe and Asia.
What Happened?
Spain’s Consumer Rights Ministry has ordered a temporary suspension of prediction market platforms Polymarket and Kalshi for allegedly operating without the required gambling licences in the country. The order was officially published in Spain’s state gazette on Tuesday.
According to the ministry, Spain’s gambling watchdog has launched a formal investigation into the two United States based companies. The probe is expected to continue for around three to four months while authorities examine whether the platforms violated local gambling laws and consumer protection requirements.
Polymarket and Kalshi are being blocked in Spain 🚨
— StarPlatinum (@StarPlatinum_) May 26, 2026
Spain’s Ministry of Consumer Affairs has officially opened sanction proceedings against Polymarket and Kalshi
For allegedly operating as unlicensed gambling platforms.
The Spanish government has now ordered internet… pic.twitter.com/ivHHLO26fG
Spain Treats Prediction Markets as Gambling
Spanish regulators consider prediction markets a form of gambling whenever users place money on uncertain future outcomes. That legal interpretation sits at the center of the current crackdown.
Prediction markets allow users to buy and sell positions tied to real world events. Prices move based on the perceived probability of an outcome happening. Popular topics on these platforms include elections, sports, cryptocurrency prices, interest rate decisions, and geopolitical developments.
While companies like Kalshi have argued in the United States that prediction markets function more like financial trading products, European regulators have largely rejected that distinction. Spain’s position is that if money is wagered on uncertain events, the activity falls under gambling laws regardless of how the platform is structured technically.
Consumer Protection Concerns Triggered the Probe
Spanish authorities said both platforms lacked the safeguards required for licensed gambling operators in the country.
Officials specifically pointed to concerns involving:
- Identity verification systems.
- Age restriction controls for minors.
- Protection systems for self excluded users or individuals banned from gambling.
- Technical compliance standards designed to protect consumers.
The ministry argued that platforms operating without these protections expose users to unnecessary risks, especially as prediction markets continue attracting younger audiences online.
Global Pressure on Prediction Markets Is Growing
Spain is not acting alone. Several countries have recently taken action against prediction market operators as governments attempt to define whether these platforms should be treated as financial products or online gambling services.
France blocked Polymarket in late 2024 over similar concerns involving unlicensed gambling activity. Belgium, Poland, Italy, Brazil, Indonesia, and the Netherlands have also moved against prediction market operators in recent months.
The Netherlands gambling regulator reportedly threatened Polymarket with weekly fines of €420,000 if it continued serving Dutch users without a licence.
India also entered the debate this month after its Ministry of Electronics and Information Technology reportedly ordered internet service providers to block access to Polymarket. Reports indicated that similar action against Kalshi could follow.
The latest restrictions come after India formally classified prediction markets as “money games” under updated online gaming regulations that took effect earlier this month.
Prediction Markets Continue Rapid Expansion
Despite increasing regulatory scrutiny, prediction markets have grown rapidly over the last two years.
Polymarket and Kalshi processed billions of dollars in trading volume surrounding the 2024 United States presidential election. Since then, both platforms expanded into sports, economics, crypto markets, and corporate event forecasting.
Supporters argue that prediction markets provide valuable forecasting tools that reflect collective public sentiment more efficiently than traditional polling methods. Economist Robin Hanson, one of the leading academic voices supporting prediction markets, has defended the sector in recent months.
Critics, however, argue that these platforms increasingly resemble speculative gambling products rather than legitimate financial markets.
Reports cited in previous coverage from Bloomberg and The Wall Street Journal highlighted heavy user losses and highly concentrated profits among a small percentage of accounts. Those concerns have fueled additional pressure from regulators focused on consumer risk and gambling addiction.
CoinLaw’s Takeaway
In my experience, regulators were always going to move harder against prediction markets once the industry became mainstream. Platforms like Polymarket and Kalshi grew rapidly because they combined crypto culture, politics, finance, and gambling into one easy to use product. That growth made regulatory attention unavoidable.
I found Spain’s move especially important because it shows European governments are becoming more aggressive in treating prediction markets as gambling instead of financial innovation. If more countries follow this approach, platforms may face serious challenges expanding globally without fully licensed gambling operations.
