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TWSE Foreign Holding Weekly (Oct 16th): TSMC, MediaTek, Nanya Technology, Delta Electronics, Yageo

16 Oct 2026 By Ke Yan, CFA, FRM
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Abstract: We analyzed changes in foreign holdings of TWSE stocks as of Oct 16th. Total foreign holdings were USD2,234.8bn, down from USD2,409bn a week earlier, a decrease of USD174bn or 7.2% week over week. We estimate foreign flows were net outflows of USD16,839m for the week, while the TWSE index fell 4.5% over the same period. TSMC led outflows with a weekly decline of USD8,074m, followed by MediaTek at USD2,355m, Nanya Technology at USD1,199m, Delta Electronics at USD1,165m, and Yageo at USD604m. On the inflow side, Evergreen Marine gained USD243m, Taiwan Surface Mounting Technology gained USD175m, and Yuanta Financial gained USD150m.

TSMC (2330 TT) Delta Electronics (2308 TT) Yageo (2327 TT) MediaTek (2454 TT) Nanya Technology (2408 TT)

Highlighted Stocks

TSMC, Delta Electronics, Yageo, MediaTek, Nanya 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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