Trump inks executive order for vetting advanced AI models

President Donald Trump signed an executive order tightening oversight of advanced AI models, directing firms to provide U.S. government access to models for cybersecurity testing up to 30 days before public release. The order tasks agencies including the Treasury, Homeland Security and Defense with implementation. Market implications: increased regulatory scrutiny could raise compliance costs and slow product releases for AI vendors, potentially heightening volatility in AI-exposed tech stocks and indices (including the US Tech 100). Investors may reprice risk for AI-related firms, supply-chain beneficiaries (chips, data centers) and AI-focused ETFs as details and enforcement timelines become clearer.