TSMC is trading 4.03% up at $47.98 on October 19, 2026, amid a broader chip-stock rebound following last week’s selloff. - No clear TSMC-specific announcement explains the move; sector-driven buying is the strongest match. - Reuters reported that lower Treasury yields and easing crude oil prices supported the AI trade, while semiconductor ETF SOXX rose 3.6% in premarket trading.