Amkor Technology is trading at $47.05 (-9.05%) amid a broad semiconductor selloff after AI leaders called for slower development, pressuring chip-related stocks.
- Reuters reported Intel, AMD, and Marvell falling sharply, while semiconductor ETFs also declined.
- Nasdaq Composite is down 1.18% and S&P 500 is down 0.72%.
- No new company-specific announcement clearly explains the September 14, 2026 decline; the California pension-fund stake increase is supportive but not a direct catalyst.