Quantitative Research

TWSE Foreign Holding Weekly (Aug 7th): Quanta Computer, Nanya Technology, TSMC, Wistron

07 Aug 2026 By Ke Yan, CFA
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Abstract: We analyzed changes in foreign holdings of TWSE stocks as of Aug 7th, with total foreign holdings reaching USD2,147bn, up from USD2,114bn a week prior. We estimate weekly foreign flows were net inflows of USD3,263m, with foreign holdings rising 1.6% WoW while the TWSE index gained 2.6%. The top weekly inflow recipients were Quanta Computer (+USD2,141m), Nanya Technology (+USD745m), Wistron (+USD486m), Hon Hai Precision (+USD481m), and Lite-On Technology (+USD458m). On the outflow side, TSMC saw the largest weekly foreign selling at -USD743m, followed by UMC (-USD398m) and Yageo (-USD389m). TSMC remains the most widely held stock by foreign investors at USD1,318bn, despite consistent outflows of -USD73,148m over the past year.

TSMC (2330 TT) Nanya Technology (2408 TT) Hon Hai Precision (2317 TT) Wistron (3231 TT) Quanta Computer (2382 TT)

Highlighted Stocks

TSMC, Nanya Technology, Hon Hai Precision, Wistron, Quanta Computer

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