Quantitative Research

TWSE Short Interest Weekly (Aug 21st): Shin Kong Financial, MediaTek, Evergreen Marine

21 Aug 2026 By Ke Yan, CFA
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Abstract: We analyzed TWSE short interest for stocks with market capitalization of at least USD 100m as of August 21st, with aggregated short interest of USD 42.3bn, down from USD 44.0bn a week prior. Short interest decreased 4.0% over the week, outpacing the TWSE index decline of 1.3%, reflecting net short covering across the market. The largest weekly increases in short value were in LARGAN Precision (+USD 265m, +24.2%) and MediaTek (+USD 166m, +48.5%). The largest decreases were in Quanta Computer (-USD 496m, -33.3%), Asia Vital Components (-USD 160m, -36.6%), and Evergreen Marine (-USD 108m, -27.1%), with Evergreen Marine also seeing its short-to-ADT ratio fall by 2.3x.

Quanta Computer (2382 TT) MediaTek (2454 TT) Asia Vital Components (3017 TT) Evergreen Marine (2603 TT) Shin Kong Financial (2888 TT)

Highlighted Stocks

Quanta Computer, MediaTek, Asia Vital Components, Evergreen Marine, Shin Kong Financial

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