ASML Holding is trading at $1444.83 (-3.44%) amid semiconductor-sector concerns over tighter scrutiny of U.S. data-center projects. - Investors are concerned the scrutiny could delay AI infrastructure expansion and weaken future demand for chipmaking equipment. - Semiconductor and technology shares were under pressure across regions. - Available reporting identified no company-specific announcement explaining the move; evidence points to sector concerns rather than a company-specific catalyst.