Quantitative Research

TWSE Foreign Holding Weekly (May 29th): Hon Hai Precision, Zhen Ding Technology, Nanya Technology

29 May 2026 By Ke Yan, CFA
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Abstract: We analyzed TWSE foreign holding data as of May 29th, covering stocks with market cap of at least USD100m. Total foreign holdings stood at USD2,287.1bn, up from USD2,141bn a week prior, a gain of USD146bn (6.8% WoW), outpacing the TWSE index which rose 5.8% over the same period. We estimate net foreign inflows of USD6,743m for the week, reflecting broad-based buying across the market. The top weekly inflow recipients were Hon Hai Precision (2317 TT, +USD2,008m), Zhen Ding Technology (4958 TT, +USD1,813m), Nanya Technology (2408 TT, +USD907m), Powerchip Semiconductor Manufacturing (6770 TT, +USD747m), and Winbond Electronics (2344 TT, +USD650m). On the outflow side, Quanta Computer (2382 TT, -USD701m), ASE Industrial (3711 TT, -USD396m), and Innolux (3481 TT, -USD382m) saw the largest weekly reductions in foreign holdings.

Nanya Technology (2408 TT) Powerchip Semiconductor Manufacturing (6770 TT) Quanta Computer (2382 TT) Zhen Ding Technology (4958 TT) Hon Hai Precision (2317 TT)

Highlighted Stocks

Nanya Technology, Powerchip Semiconductor Manufacturing, Quanta Computer, Zhen Ding Technology, Hon Hai Precision

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