Quantitative Research

TWSE Foreign Holding Weekly (Aug 28th): TSMC, E.SUN Financial, Nanya Technology, MediaTek

28 Aug 2026 By Ke Yan, CFA, FRM
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Abstract: We analyzed foreign holding changes in TWSE-listed stocks as of August 28th. Total foreign holdings stood at USD2,277.2bn, up USD59bn (2.7% WoW), outpacing the TWSE index gain of 2.4% over the same period. We estimate net foreign inflows of USD3,814m for the week. The top weekly inflow recipients were TSMC (+USD696m), E.SUN Financial (+USD436m), Nanya Technology (+USD423m), Unimicron Technology (+USD367m), and MediaTek (+USD243m). The largest weekly outflows were recorded in BizLink (-USD220m), Nan Ya Printed Circuit Board (-USD176m), Wiwynn (-USD158m), Kaori Heat Treatment (-USD144m), and Wistron (-USD141m).

TSMC (2330 TT) MediaTek (2454 TT) E.SUN Financial (2884 TT) Nanya Technology (2408 TT) Unimicron Technology (3037 TT)

Highlighted Stocks

TSMC, MediaTek, E.SUN Financial, Nanya Technology, Unimicron Technology

About TWSE Foreign Holding Weekly

A weekly review of foreign investor holdings in Taiwan-listed stocks. Each issue estimates the week's foreign inflow or outflow and tabulates the largest changes in foreign holdings by value over one week, four weeks and one year, alongside the stocks foreign institutions hold most. All issues of TWSE Foreign Holding Weekly →

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