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Polymarket, Kalshi Hit New Roadblock In Spain: Regulator Opens Probe Over Law Breaches

By Bitcoinist
May 27, 2026
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Polymarket and Kalshi have been hit with mounting regulatory scrutiny, and Spain is now the latest jurisdiction to step in. After challenges ranging from security concerns to government investigations, Spanish regulators have begun a formal process against both prediction market operators and ordered their sites blocked nationwide.

Sanctions Against Polymarket And Kalshi

Spain’s regulator framed the action around allegations that the companies are operating without the proper authorization. In an official release connected to the matter, the agency said it initiated the sanctioning procedure over what it described as breaches of gambling rules. 

Under that interpretation, platforms operating in Spanish territory must obtain a specific administrative license. The authority argued that operators without authorization do not provide the technical and regulatory guarantees Spain requires for gambling activities. 

The regulator also indicated that the procedure against both Polymarket and Kalshi is expected to run for roughly three to four months before a final decision is issued.

US Investigation, Indonesia Ban

Indonesia’s Ministry of Communication and Digital Affairs said the restriction was intended to protect the public, with emphasis on younger users and people participating in the digital space. 

The probe was reportedly prompted by a series of suspicious trades linked to classified US military operations and geopolitical events. With Spain now moving to sanction and block access, the regulatory list continues to expand. 

Featured image created with OpenArt; chart from TradingView.com 

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