TW StockArticle is online

Taiwan OTC Weighted Index Falls 6.35% to 321.70

Mr. W
Taiwan OTC Weighted Index Falls 6.35% to 321.70

Preface

As of 01:19 Taipei time on the 05th, the Taiwan OTC Weighted Index was trading lower, down 21.8 points, or 6.35%, at 321.70 points. This market snapshot summarizes the index’s recent performance and identifies the industry themes and individual stocks recording the steepest declines. Although the latest session showed broad weakness, the index’s reported performance varies across time horizons: it has fallen over the past week, month, three months, and six months, while remaining higher year to date. Testing interface and CoWoS-related stocks were among the main areas of weakness, with several listed companies posting declines close to 10%.

Lazy bag

The Taiwan OTC Weighted Index fell 21.8 points (6.35%) to 321.70 points as of 01:19 Taipei time on the 05th. Its reported returns were -12.95% over 1 week, -19.54% over 1 month, -8.41% over 3 months, -13.75% over 6 months, and +24.35% year to date. Testing interface stocks declined -7.64% as a group, while CoWoS-related stocks fell -7.14%. Among the named shares, several losses approached 10%.

Main Body

The Taiwan OTC Weighted Index was under notable pressure in the reported market update. At 01:19 Taipei time on the 05th, the index stood at 321.70 points, a decline of 21.8 points compared with its previous level. The reported percentage loss was 6.35%. These figures provide a snapshot of the index at the stated time and should be understood as the reported intraday position, rather than as a closing result.

The index’s performance differed depending on the period measured. Over the most recent 1 week, it recorded a decline of -12.95%. Over the past 1 month, the decline was -19.54%, while the 3-month change was -8.41%. Across the past 6 months, the index was down -13.75%. By contrast, its year-to-date performance remained positive at +24.35%. Taken together, these figures show that a positive year-to-date return coexisted with substantial declines over the shorter periods listed in the update.

Industry themes highlighted in the report also showed broad weakness. The testing interface concept group led the declines, falling -7.64%. The named companies in this group were Chroma ATE (健策, 3653-TW), which fell 10%; MPI Corporation (穎崴, 6515-TW), down 9.95%; and Gudeng Precision (旺矽, 6223-TW), down 9.92%. Each of these stocks recorded a decline close to 10%, with Chroma ATE posting the largest loss among the three figures provided.

The CoWoS concept group also moved lower, declining -7.14%. Within the group, Marketech International (志聖, 2467-TW) fell 9.99%, Topco Scientific (精材, 3374-TW) declined 9.96%, and All Ring Tech (萬潤, 6187-TW) dropped 9.95%. The individual losses were tightly grouped, all within a small range around 10%, while the group-level decline was reported at -7.14%.

Comparing the two industry themes, testing interface stocks had the larger reported group decline: -7.64% compared with -7.14% for CoWoS-related stocks. However, the individual names listed in both groups experienced steeper losses than their respective group figures, with the reported share declines ranging from 9.92% to 10% among the testing interface companies and from 9.95% to 9.99% among the CoWoS-related companies. This contrast illustrates how group-level performance can differ from the movement of particular constituents.

The time-period returns also provide useful context for interpreting the index’s latest move. The -19.54% change over 1 month was the largest decline among the reported negative performance periods. The 1-week loss of -12.95% was also substantial, while the 3-month and 6-month declines were -8.41% and -13.75%, respectively. At the same time, the +24.35% year-to-date figure indicates that the index’s cumulative movement since the beginning of the year remained positive despite the weaker results across the other specified periods.

This update reports index and stock movements, but it does not identify the causes of the declines or provide additional information about trading volume, earnings, or company guidance. Accordingly, the figures describe observed performance at the stated time and do not, by themselves, establish why the index or the highlighted stocks moved lower. Readers assessing the market can distinguish the reported index level, period returns, group performance, and individual stock changes as separate measures.

In summary, the Taiwan OTC Weighted Index was reported at 321.70 points after falling 21.8 points, or 6.35%, as of 01:19 Taipei time on the 05th. The update highlighted weakness in testing interface and CoWoS-related stocks, with declines among the named companies approaching 10%. Despite the sharp short-term and medium-term losses listed, the index’s reported year-to-date return was still +24.35%.

Key Insights Table

AspectDescription
Index snapshotAt 01:19 Taipei time on the 05th, the Taiwan OTC Weighted Index was down 21.8 points, or 6.35%, at 321.70 points.
Historical performanceThe reported changes were -12.95% over 1 week, -19.54% over 1 month, -8.41% over 3 months, -13.75% over 6 months, and +24.35% year to date.
Testing interface groupThe group fell -7.64%. Chroma ATE (健策, 3653-TW) declined 10%, MPI Corporation (穎崴, 6515-TW) fell 9.95%, and Gudeng Precision (旺矽, 6223-TW) dropped 9.92%.
CoWoS-related groupThe group fell -7.14%. Marketech International (志聖, 2467-TW) declined 9.99%, Topco Scientific (精材, 3374-TW) fell 9.96%, and All Ring Tech (萬潤, 6187-TW) dropped 9.95%.
Overall contextThe index and highlighted groups were lower in the reported snapshot, while the index’s stated year-to-date performance remained positive.

Last edited at:2026/11/5

Mr. W

Author

Mr. W

ZNews full-time writer

With 5 years of senior writing experience, he is now a full-time writer for Z News. He is good at creating accurate and attractive content, focusing on news writing and in-depth reporting, and can gain insights into current affairs and social trends from a unique perspective.