Quantitative Research

TWSE Foreign Holding Weekly (Aug 21st): Unimicron Technology, Nanya Technology, Evergreen Marine

21 Aug 2026 By Ke Yan, CFA
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Abstract: We analyzed changes in foreign holdings of TWSE stocks as of August 21st, with total aggregate holdings of USD2,218bn across stocks with market cap of at least USD100m. We estimate weekly foreign flows were inflows of USD800m. Total foreign holdings decreased by USD11bn (0.5% WoW), outperforming the TWSE index which declined 1.3% over the same period. The top inflow stocks for the week were Unimicron Technology (3037 TT, +USD1,277m), Nanya Technology (2408 TT, +USD591m), Evergreen Marine (2603 TT, +USD495m), Yang Ming Marine (2609 TT, +USD296m), and Elite Material (2383 TT, +USD288m). The largest outflows were from Powerchip Semiconductor Manufacturing (6770 TT, -USD501m), Hon Hai Precision (2317 TT, -USD319m), and Zhen Ding Technology (4958 TT, -USD247m).

Unimicron Technology (3037 TT) Powerchip Semiconductor Manufacturing (6770 TT) Evergreen Marine (2603 TT) Nanya Technology (2408 TT) Hon Hai Precision (2317 TT)

Highlighted Stocks

Unimicron Technology, Powerchip Semiconductor Manufacturing, Evergreen Marine, Nanya Technology, Hon Hai Precision

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