TSMC is trading 5.37% down now at $46.14, as semiconductor-sector weakness intensified on September 3, 2026.
- The decline appears tied mainly to sector pressure, with SOXX down 2.76%.
- Rising Treasury yields and oil prices are weighing on high-valuation technology stocks.
- A bullish equipment-purchasing update linked to stronger AI demand describes increased production needs and does not explain the same-day drop.