Quantitative Research

TWSE Short Interest Weekly (May 22nd): Shin Kong Financial, Quanta Computer, Yageo, LARGAN Precision

22 May 2026 By Ke Yan, CFA
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Abstract: We analyzed TWSE short interest for stocks with market cap of at least USD 100m as of May 22nd. Aggregate short interest was USD 46,763m, up 7.1% week-on-week, compared to the TWSE index gain of 2.7%, indicating short sellers added exposure faster than the market rose. Among the largest weekly increases, Quanta Computer (2382 TT) saw the biggest jump in short value, rising USD 290m (+30.3%) to USD 1,248m, followed by Wiwynn (6669 TT) at +USD 180m and Yageo (2327 TT) at +USD 150m (+70.2%), the latter now at 0.5x ADT. On the covering side, LARGAN Precision (3008 TT) saw the largest short reduction at -USD 121m (-16.3%) to USD 622m, followed by Fubon Financial (2881 TT) at -USD 91m and Winbond Electronics (2344 TT) at -USD 88m. King Yuan Electronics (2449 TT) and Shin Kong Financial were also highlighted for notable short interest changes during the week.

Quanta Computer (2382 TT) Yageo (2327 TT) King Yuan Electronics (2449 TT) LARGAN Precision (3008 TT) Shin Kong Financial (2888 TT)

Highlighted Stocks

Quanta Computer, Yageo, King Yuan Electronics, LARGAN Precision, Shin Kong Financial

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