ASML Holding is trading 4.74% down now at €1544.80 after broad semiconductor selling intensified on August 18, 2026.
- Rising bond yields, higher oil prices, and renewed U.S.–Iran tensions pressured high-valuation technology stocks.
- The Philadelphia Semiconductor Index fell 5%.
- No new company-specific announcement or downgrade clearly explains the decline; the move appears primarily sector-driven, with macro risk adding pressure.