<h1>Tech-led U.S. sell-off in AI chip and platform stocks sparks volatility, disclosure and insider-trading scrutiny for issuers</h1> Major regional equity declines followed a tech-led sell-off in the U.S., driven by sharp falls in AI-related chip and platform stocks ahead of a major chipmaker's earnings report, raising market volatility and disclosure risks for issuers. A delayed national employment release due to a government shutdown added information asymmetry concerns for investors and regulators. Rising long-term sovereign yields and currency swings reflect fiscal policy shifts and pose financial stability and market-risk implications. Potential legal issues include securities disclosure obligations, insider trading scrutiny around earnings, and heightened regulatory attention to systemic-market and data-access disruptions.