TAIEX Roars Back 4.2% as Domestic Funds Buy the Dip While Foreigners Keep Selling — Taiwan Market Wrap, July 21, 2026

The TAIEX surged 4.20% to 44,232.87 on Tuesday, clawing back part of Friday’s historic 6.47% rout. But the rebound was domestically funded: investment trusts bought NT$17.23B while foreign investors stayed net sellers at NT$-4.33B.

TAIEX Plunges 6.5% in Global Chip Rout — TSMC Sinks 7.3% Despite Record Quarter

Taiwan’s benchmark fell 6.47% to 42,671 on Friday as an overnight 4.29% rout in the Philadelphia Semiconductor Index swept through Taipei. TSMC dropped 7.29% despite a record Q2, UMC closed limit-down, and foreign investors had already sold NT$48.3 billion of cash equities heading into the session.

How to Read Taiwan’s Monthly Revenue Filings: TSMC, Hon Hai, Delta and MediaTek’s June 2026 Data as a Worked Example

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.