The Taiwan Stock Exchange experienced massive volatility on the 15th. After surging over 650 points to a record 42,408 early on, the index reversed course, oscillating 1,391 points before closing down 579.39 points at 41,172.36. This drop broke below both the 5-day and 10-day moving averages. TSMC fell 0.22% to NT$2,265, while Hon Hai and UMC gained over 1%. MediaTek and Yageo closed in negative territory after an initial rise.