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TWSE Foreign Holding Weekly (Oct 30th): TSMC, MediaTek, Delta Electronics, UMC, Unimicron Technology

30 Oct 2026 By Ke Yan, CFA, FRM
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Abstract: We analyzed changes in foreign holdings of TWSE stocks as of October 30th. Total foreign holdings were USD2,158.2bn, down USD5.8bn (0.3% WoW) from USD2,164bn a week ago. We estimate foreign flows at an outflow of USD4,328mln for the week, while the TWSE index fell 1.8%. The largest outflows were from TSMC (2330 TT, -USD1,301m), MediaTek (2454 TT, -USD1,019m), Delta Electronics (2308 TT, -USD680m), UMC (2303 TT, -USD372m), and Unimicron Technology (3037 TT, -USD346m). The largest inflows were into Winbond Electronics (2344 TT, +USD307m), Nanya Technology (2408 TT, +USD256m), BizLink (3665 TT, +USD160m), Hon Hai Precision (2317 TT, +USD143m), and Powerchip Semiconductor Manufacturing (6770 TT, +USD112m).

TSMC (2330 TT) MediaTek (2454 TT) Unimicron Technology (3037 TT) UMC (2303 TT) Delta Electronics (2308 TT)

Highlighted Stocks

TSMC, MediaTek, Unimicron Technology, UMC, Delta Electronics

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