Polymarket preps systems for US midterms

Polymarket is enhancing its trading surveillance systems to police misconduct as the U.S. midterm elections approach. The prediction market firm aims to block domestic users and tackle insider trading concerns.

Polymarket logo appears in this illustration taken April 22, 2026. REUTERS/Dado Ruvic/Illustration

Prediction market Polymarket has ramped up security protocols to police trading as the upcoming United States midterm elections test industry controls. The platform is deploying machine learning and blockchain analytics to tackle potential insider trading. The review comes as lawmakers scrutinize prediction platforms over national security and election integrity concerns.

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