Spain Launches Investigation Into Prediction Market Platforms
Authorities in Spain have officially moved against prediction market platforms Polymarket and Kalshi, accusing both companies of potentially violating the country’s gambling laws.
Spain’s Directorate General for Gambling Regulation (DGOJ) initiated disciplinary proceedings against the firms after determining they may have been operating in the country without the required gambling authorization.
According to Spain’s Ministry of Consumer Affairs, the platforms will remain blocked for approximately three to four months while the investigation continues.
Officials reportedly struggled to contact the companies through their foreign business addresses before issuing the enforcement order.
Spain Says Prediction Markets Qualify as Gambling
Spanish regulators argue that prediction markets fall under existing gambling laws because users wager money on uncertain future outcomes.
As a result, platforms offering such services must obtain administrative gambling licenses before operating legally inside the country.
Regulators also warned that neither platform currently provides the consumer protections required under Spanish law, including identity verification systems, protections for minors, and safeguards for self-excluded gamblers.
Spanish telecom operators have reportedly already been instructed to begin implementing the access restrictions.
Spain Joins Growing Global Crackdown
Spain is now the latest country to crack down on prediction market platforms amid growing international scrutiny.
Several countries have recently blocked or restricted Polymarket and Kalshi over concerns that the services operate as unlicensed gambling businesses rather than regulated financial products.
Countries including Indonesia, Brazil, India, Ukraine, Portugal, and Netherlands have all taken action against prediction market operators over the past year.
Reports indicate that Polymarket is now restricted or blocked in more than 30 jurisdictions globally.
Trading Volumes Continue Exploding Despite Scrutiny
The regulatory crackdown comes even as prediction markets continue experiencing explosive growth.
According to Dune Analytics data referenced in multiple reports, Polymarket generated more than $5 billion in monthly trading volume during May, while Kalshi reportedly exceeded $13 billion.
The sector’s rapid growth has also pushed company valuations sharply higher.
Polymarket is reportedly seeking a valuation near $15 billion, while Kalshi recently raised funding at a valuation estimated around $22 billion.
The platforms have become increasingly popular for betting on elections, geopolitical events, financial outcomes, sports, and even military conflicts.
Insider Trading Concerns Add More Pressure
Alongside gambling concerns, regulators are also increasingly worried about insider trading risks tied to prediction markets.
In recent months, several controversial incidents have intensified political and legal scrutiny around the sector.
A group of wallets reportedly earned roughly $2.4 million betting on markets connected to the Iran conflict, raising suspicions about access to non-public information.
Meanwhile, a US soldier was charged earlier this year for allegedly using confidential information to place profitable bets related to Venezuelan President Nicolás Maduro on Polymarket.
The case reportedly generated more than $400,000 in profits.
Pressure Is Also Rising in the United States
Although prediction markets have expanded aggressively, political pressure is also growing inside the United States.
Last week, House Republicans reportedly opened investigations into both Polymarket and Kalshi amid concerns surrounding identity verification, suspicious trading activity, and compliance procedures.
Some lawmakers have suggested that additional Congressional action may become necessary as prediction markets continue blurring the line between financial products and online gambling.
The debate now centers on whether these platforms should ultimately be regulated as betting operators, financial exchanges, or an entirely new category of digital market infrastructure.
