Lam Research is trading at $212.87, down 3.86% in pre-market as semiconductor suppliers face pressure amid investor concerns that election results could slow U.S. data-center construction and AI infrastructure spending. - Reuters reported chipmakers fell despite broader U.S. stocks rising, while the Philadelphia Semiconductor index dropped to a six-month low. - Asian chip shares also weakened overnight amid data-center regulation concerns, supporting a sector-driven explanation rather than a new Lam-specific catalyst. - Lam Research had also fallen in recent sessions, extending its existing weakness.