Polymarket cuts ties with George Santos as regulators probe trades on rival prediction market

NEW YORK — The online prediction platform Polymarket is ending its paid relationship with George Santos as federal regulators investigate whether the former congressman illegally bet against his own attendance at President Donald Trump’s State of the Union. Santos placed the bets on another prediction marketplace, Kalshi, after publicly announcing his intention to be at … Read more

Google employee accused of making over $1.2M on Polymarket through insider trading

A software engineer at Google is facing federal charges after allegedly betting on confidential company information on Polymarket, netting more than $1.2 million in profits, the second insider trading prosecution against a user of the popular prediction market service in recent months. In court papers released by the Justice Department, Michele Spagnuolo was accused of … Read more

Google engineer made $1.2M by placing bets on Polymarket using confidential info, prosecutors allege

A Google software engineer was accused Wednesday of allegedly using confidential company information to make over $1.2 million on Polymarket, marking the second significant criminal case tied to trades on the prediction market platform. Subscribe to read this story ad-free Get unlimited access to ad-free articles and exclusive content. Michele Spagnulo, a 36-year-old Italian citizen … Read more

House lawmakers launch insider trading probe into Kalshi and Polymarket

The House Oversight Committee said on Friday that it is opening an investigation into Kalshi and Polymaket over alleged incidents of insider trading by users of the prediction markets.  Rep. James Comer of Kentucky, the panel’s chairman, sent letters to Kalshi CEO Tarek Mansour and Polymarket CEO Shayne Coplan requesting internal documents to determine what the companies … Read more

Polymarket to let users make prediction market bets on private companies

Polymarket launched a new set of prediction markets on Tuesday that allows users to trade on private company performance for the first time. The New York-based company said it is teaming up with Nasdaq Private Market, a secondary trading venue that provides data on non-public companies, to offer the new service. Customers will be able … Read more

Suspected insider accounts net $2.4 million on Polymarket Iran war bets with 98% win rate, firm finds

Nine connected Polymarket accounts have raked in more than $2.4 million betting almost exclusively on U.S. military actions in what digital detectives from the data analytics firm Bubblemaps have identified as a potentially egregious case of insider trading.  The anonymous accounts made winning bets on the specific dates of pivotal moments in the war with … Read more

Polymarket tries to show it can play by the rules

Four years after Polymarket paid $1.4 million to settle with U.S. regulators and barred bets from American users, the explosive case against a soldier charged with trading on classified information is offering the prediction market a chance to come in from the cold. Subscribe to read this story ad-free Get unlimited access to ad-free articles … Read more