Quantitative Research

TWSE Short Interest Weekly (Aug 28th): Shin Kong Financial, Jentech Precision Industrial, FOSITEK

28 Aug 2026 By Ke Yan, CFA
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Abstract: We analyzed TWSE short interest data as of Aug 28th, covering stocks with market cap of at least USD 100m. Aggregate short interest was USD 43,874m, up 3.7% week-on-week, outpacing the TWSE index gain of 2.4%. The largest short positions by value were led by Wiwynn (USD 2,306m), LARGAN Precision (USD 1,560m), and Innolux (USD 1,232m). The biggest weekly increases in short value were Wiwynn (+USD 341m), LARGAN Precision (+USD 202m), Winbond Electronics (+USD 139m), and FOSITEK (+USD 102m). The largest weekly decreases were Jentech Precision Industrial (-USD 185m, -32.9%) and Evergreen Marine (-USD 92m, -31.4%).

Jentech Precision Industrial (3653 TT) Winbond Electronics (2344 TT) Shin Kong Financial (2888 TT) FOSITEK (6805 TT) Evergreen Marine (2603 TT)

Highlighted Stocks

Jentech Precision Industrial, Winbond Electronics, Shin Kong Financial, FOSITEK, Evergreen Marine

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