The TAIEX closed at 44,737.95 on Tuesday, down 1.42%, as renewed U.S.-Iran tensions and Monday’s 4.78% drop in the Philadelphia Semiconductor Index hit Taipei. Foreign investors sold a net NT$51.89 billion, with TAIFEX settlement Wednesday and TSMC earnings Thursday.
Taiwan’s five largest tech exporters must disclose revenue every month — a disclosure rule almost no other major market imposes. Here’s how to read those filings, with TSMC, Hon Hai, Delta Electronics, MediaTek, and UMC’s June 2026 numbers as a worked example of what accelerating AI demand looks like in the data.
Taiwan’s market reopened Monday after Friday’s typhoon closure and finished barely changed, with TSMC’s gain masking weakness in MediaTek and UMC. Foreign investors sold a net NT$19.58B, while investment trusts bought. TSMC reports Q2 results Thursday.
Taiwan’s equity market runs 09:00-13:30 Taipei time, settles T+2, and shifts every obligation forward one business day when an unscheduled closure hits. A field guide to the trading calendar, call auctions, the after-hours session, and the time-zone gap for overseas investors.
The TWSE suspended all trading Friday as Typhoon Bavi approached Taipei, freezing the tape at Thursday’s close: TAIEX 45,354.61, down 0.83% on the day and 3.05% on the week, with foreign investors selling NT$47.25B into the break.
TSMC’s latest monthly revenue: NT$467.6bn in July 2026, up 44.7% year on year and 5.6% on the month. Updated after every filing, plus the next earnings date.