The city of Baltimore filed lawsuits against Kalshi and Polymarket, arguing their event contracts on sports outcomes constitute unlicensed gambling, and also na

The New York City Council launched a probe into prediction market platforms' advertising practices, citing concerns about social harms and predatory marketing a

Financial Times reported JPMorgan debanked Polymarket last year due to regulatory fears, though the bank maintains some ties as Polymarket pursues IPO plans.

An aide to UK politician Nigel Farage was found to have operated a hidden Polymarket account that placed winning bets on Donald Trump's presidential victory, ra

The White House plans to meet with crypto and prediction market executives days after Baltimore sued Kalshi and Polymarket, signaling elevated regulatory attent

Brazil's regulatory authority moved to block access to Polymarket, Kalshi, and 25 other prediction market platforms nationwide.

New York regulatory authorities initiated a broad action targeting Kalshi, Polymarket, and Coinbase over prediction market marketing and operations.

A Washington state court issued an order requiring Kalshi to stop offering most of its prediction market contracts within the state.

The New York Yankees announced a partnership with Polymarket, making them the first Major League Baseball team to name a prediction market as an official partne

Polymarket acquired the sports prediction team from Turf in a talent-focused deal to bolster its sports vertical offerings.

Alexandria Ocasio-Cortez surpassed Marco Rubio in Polymarket's 2028 presidential election odds, reflecting shifting political sentiment on the platform.

Washington Post reported that Polymarket allowed betting on wildfire outcomes, prompting lawmakers to warn such markets could incentivize arson.

Polymarket appointed a former Uber executive to head a new growth initiative as the platform expands its user base.

Fortune reported that prediction markets faced a credibility check after a surprising election outcome in Wisconsin missed market expectations.

Polymarket claimed that traders on its platform anticipated the downfall of Leopold Ashenbrenner's Situational Awareness fund, citing prediction market signals.

Polymarket odds for a Bank of Japan interest rate hike tripled amid reduced yen intervention expectations by Japanese authorities.

Blockchain platform SKALE launched Agent Pit, a sandbox environment allowing developers to train AI agents before deploying them live on Polymarket.

Prediction markets including Polymarket listed odds for the 2026 US midterm elections, enabling trading on congressional race outcomes.