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- Prediction market sites Polymarket and Kalshi face Spain’s temporary access block.
- Regulators say prediction market platforms may fall under Spanish gambling laws now.
- Spain’s probe could shape Europe’s approach to prediction market oversight this year.
Spain has temporarily blocked access to Polymarket and Kalshi while authorities review their operations. The action targets two U.S.-based prediction market platforms. Regulators say both may have offered services in Spain without required gambling authorization from national officials under law.
Spain’s Consumer Rights Ministry confirmed that the gambling watchdog has launched an investigation into both companies, according to Reuters. The probe relates to alleged activities outside of administration. Gambling is regulated in Spain and must be approved before launch.
Suspension was issued in Spain’s official state gazette. It can take approximately three to four months. The sites will remain blocked throughout the review.
Prediction Market Contracts Face Gambling Law Test
The case is about the legal position of event contracts. These products are commonly known as financial derivatives. Spanish regulators believe that when users wager on future events that are not guaranteed, they are subject to gambling laws.
Prediction market websites allow users to buy and sell contracts that are connected to actual events. This could be elections, sports, politics, economic data, crypto prices, and world developments. Prices tend to anticipate the market’s expectations of events.
Spain said companies offering these services must follow local gambling regulations. That includes licensing and compliance responsibilities. These rules will be in place for betting-style access to Spanish users, regulators said.
Unauthorized platforms are not protected as required by Spanish law, said the ministry. These include identity checks and systems to block minors. They also contain safeguards for consumers generally and for users who have banned themselves.
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Those controls are for the purposes of supervising betting on the Internet, authorities said. They stated that licensed operators should comply with the user-protection regulations. The ministry said that unauthorized intrusions leave gaps in supervision and enforcement.
Prediction Market Rules Split Global Regulators
However, the move puts pressure on the worldwide prediction market industry. Governments are considering if these platforms are financial products, gambling services, or a separate digital category. Such debate has been on the rise since the growth of event-based trading.
Prediction markets used to be a specialized niche on the Internet. They grew during 2024 and 2025. The rise in activity came in contracts related to U.S. politics, sports predictions, economic speculations, crypto prices, and global events.
The gap is also evident in the United States. The Commodity Futures Trading Commission (CFTC) supported Kalshi in its battle with Ohio regulators earlier this month. The CFTC contended that the prediction contracts should be considered part of federally regulated derivatives markets.
The current stance of the Spanish action stands in contrast. During the investigation, its regulators have been considering the platforms to be unapproved gambling services. The case could change the way European officials deal with the industry.
However, supporters say prediction markets can improve forecasting and price discovery. Critics cite manipulation risks, gambling harm, weak safeguards, and ethical concerns. The Spanish investigation could be a significant trial for the booming prediction market industry in Europe.
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