Tower Semiconductor is trading 10.69% down at $145.62 on November 4, 2026, as semiconductor-sector pressure tied to concerns about AI infrastructure investment weighs on sentiment. - No new company-specific announcement surfaced to explain the drop. - The recent quarter was strong, with revenue of $526.2 million and fourth-quarter revenue guidance of $600 million; these results do not directly explain today’s decline. - Semiconductor stocks are down 3.35% during the session despite broader market gains, as investors worry election outcomes and data-center permitting hurdles could slow AI infrastructure investment.