๐Ÿ‡น๐Ÿ‡ผ Taiwan ยท Sector Week Ending: 25 September 2026

Basic Materials

For the week ending 25 September 2026, Basic Materials advanced 1.13% with 73 advancing, 72 declining, and 10 unchanged constituents.

Index level
2,215.69
Index points ยท base 1,000
Weekly return
1.13%
Measured companies
155
155 in the index universe
Weekly breadth
73 up / 72 down
10 unchanged
Weekly peer rank
1 of 11
Universe country-listed ยท Equity onlyPrice basis Adjusted weekly closeConstruction Capped equal-weight returns ยท Weekly rebuild

156 completed weeks

Basic Materials price and trend

Current architecture Upward Expansion 1 completed week in this state
Trend acceptance 4.0% Index versus Trend Line
Persistence 100% Positive across every horizon
Participation 47% 73 advancing, 72 declining
Index Value Trend Line Fair Value Activity Lines Constructive Transition Defensive

Weekly index closes and the Trend Line. Dashed grey shows the latest Fair Value reference; it is not a historical forecast. Enable the other overlays for more detail.

Investor positioning lens

Is the evidence ready for capital?

A rules-based technical classification using trend, breadth, persistence, relative strength and path quality.

Current posture Wait for re-acceleration

Headline strength is not yet confirmed by the current Activity Line energy and constituent trend mix.

66 technical evidence
out of 100
Evidence balance

Five-pillar map

Wait
Trend
78
Breadth
41
Persistence
53
Relative
84
Risk quality
92
What supports the view
  • The index remains above a constructive Trend gate.
  • Relative performance is improving within its parent hierarchy.
What restrains conviction
  • Breadth remains too narrow or inconsistent for a high-conviction position.
  • Constituent persistence remains divided or predominantly negative.
  • Stage 4 declining constituents exceed Stage 2 advancing constituents by 28 percentage points.

This is a weekly research classification, not personal investment advice. Sentiment is reported as an independent confirmation layer and does not alter the technical score.

Trend state and durability

Architecture, persistence and constituent regimes

The index path is tested against the underlying security-level trend evidence.

Index architecture Upward Expansion

The activity fan is positively ordered above a rising Trend Line with price accepted above it.

State age1 weeks
Trend gateUp
Fan width1.63%
Fast versus slow change0.88 pts
Above 83% Below 0%
Six completed weeks of price acceptance relative to the full Activity Line fan.
Index persistence

Positive across every horizon

100% agreement

The 13, 26, 39 and 52-week trends all point upward, giving the advance broad horizon agreement.

13-week
2.0%
26-week
8.3%
39-week
25.0%
52-week
24.7%
Regime age39 weeks 52-week flips1 52-week boundary1776.63
Constituent trend persistence

Is the index move broadly durable?

35% coverage
Coherent positive17%
Coherent negative22%
Average horizon agreement81%
Positive horizon share52%
Weakening positives17
Repairing negatives3

54 constituents measured as of 18 Sep 2026. Median trend age is 25 weeks.

Custom stage map

Where constituents sit in the cycle

98% coverage
Stage 1 ยท Basing22%34 securities
Stage 2 ยท Advancing11%17 securities
Stage 3 ยท Distribution27%41 securities
Stage 4 ยท Declining40%60 securities
Re-acceleration watch3 Transition watch26 Relative strength leaders7% Fair Value repairs19

Measured as of 25 Sep 2026. Stages summarize price, Activity Line architecture, Fair Value position and relative evidence.

Architecture breadth

How market energy is distributed

70/100 mean confidence
Upward expansion
28% 42
Rotation up
3% 4
Deceleration
9% 14
Balance
24% 37
Rotation down
5% 7
Downward expansion
32% 48
Unresolved
0% 0

Architecture breadth shows the distribution of expanding, rotating, balancing and contracting securities. It is diagnostic context and is not added as a second vote in the positioning score.

Capital rotation

Performance relative to TW Market Structure

Improving
Relative index 13-week relative trend Starting level
Rotation dashboard Improving

The relative index starts at 100. Above 100 means this group has outperformed TW Market Structure since the first plotted date; below 100 means it has lagged. A rising line can show relative improvement even when both markets are falling.

Relative index95.4
13-week trend94.5
4-week trend change0.64%
Weekly peer rank1 of 11
1 week
0.7 pts relative
4 weeks
0.4 pts relative
13 weeks
2.0 pts relative
26 weeks
-0.6 pts relative
52 weeks
11.8 pts relative

Market internals

Participation, dispersion and path risk

Equal-weight index evidence with constituent-level breadth and dispersion.

Breadth

Participation quality

Balanced
Advancing
73
Declining
72
Unchanged
10
4-week average 43%
13-week average 46%
Risk and persistence

Path quality

52-week lens
Annualised weekly volatility15.8%
Drawdown from 52-week high-3.3%
Positive weeks, last 1354%
Current directional run2 weeks
Turnover versus 13-week norm116%
Breadth impulse0.7 pts
Cross-section

Return distribution

155 measured

Weekly returns across measured companies. Bars are scaled to the largest group; percentages show each groupโ€™s share.

Q1 -1.1% Median 0.0% Q3 2.1%
Average winner4.2%
Average loser-1.8%
Dispersion4.9 pts
Top-five upside share32%
Top-five capital share57%
Capital data coverage100%

Dispersion describes how far constituent outcomes are spreading apart. Capital concentration is contextual only; the index itself is equal weighted.

Momentum cycle

30-week price change

Index price change over 30 weeks, or the available history if shorter. Green above zero; red below.

Breadth cycle

Net participation

Advancers less decliners as a percentage of measured constituents.

Industry map

Where sector leadership is forming

Performance, breadth and trend acceptance across every qualified industry.

3/7 positive
Above Trend Line4/757% of industries
Constructive breadth2/7At least half advancing
Median industry-0.21%1.60 pts dispersion

Industry participation

Where are returns broadly supported?

Compare the weekly result with the share of companies advancing.

โ†‘ Companies advancing ยท 50% marks half of measured companies

Mixed beneath declinesBroad gainsBroad declinesNarrow gains 1234567

โˆ’2.9%Weekly index return ยท zero at centre+2.9%

Compare return with participationHover or focus a marker for the full reading. Select it to open the report.

Markers show weekly return rank. Hover or focus for the name. Fine lines connect separated markers to their actual positions. Up, down and unchanged companies all count in participation.

Taiwan ยท Weekly return relationships

Which markets move together?

Compare sectors and industries within Taiwan over the same 52-week window. Strong positive relationships can mean that apparently different holdings share the same risk.

Sectors ยท average pair correlation0.52

Closest: Technology and Industrials (0.94; 51 weeks).

11 indexes ยท 55 qualifying pairs
Industries ยท average pair correlation0.37

Closest: Semiconductors and Semiconductor Equipment & Materials (0.94; 51 weeks).

87 indexes ยท 3741 qualifying pairs

Pearson correlation of weekly percentage returns through 25 Sep 2026: +1 means moving together, 0 little linear relationship, โˆ’1 moving in opposite directions. Requires 39 matching observations for the 52-week comparison and 10 for the recent 13 weeks. Missing weeks are excluded, not filled with zero. Constant series have no defined correlation. These are local-currency, capped equal-weight indexes; sectors and their component industries overlap. A lower correlation does not establish a hedge.

Sector correlations compare broad business groups. Industry correlations reveal closer links within and across sectors. The selectors retain all qualified groups; the matrix shows the ten largest by company coverage.

News and narrative

Does company news confirm the market tape?

Open Sentiment Intelligence
Sentiment evidence is still developing

Qualified company-level news coverage is not yet broad enough to influence the group view.

0 qualified records across 155 measured constituents.

Leadership tape

Leaders, laggards and contribution shape

Latest completed week, ranked on uncapped constituent returns.

Constituent ledger

Sector constituents

Top 100 of 155 shown, ranked by latest weekly return.

Rank Ticker Company Exchange Market cap Close Index contribution Return
1 2221 Tachia Yung Ho Machine Industry Co., Ltd. TWO 6.71B 164.00 0.16 pts
28.63%
2 7763 Johnson Fine TWO 9.60B 180.00 0.16 pts
24.57%
3 2030 Froch Enterprise Co., Ltd. TAI 7.82B 30.40 0.14 pts
21.84%
4 4770 Allied Supreme Corp. TAI 21.99B 281.50 0.08 pts
12.15%
5 8438 Amia Co.,Ltd TAI 5.46B 76.60 0.08 pts
11.82%
6 1709 Formosan Union Chemical Corp. TAI 22.37B 43.50 0.07 pts
10.97%
7 3508 Ways Technical Corp., Ltd. TWO 2.58B 26.20 0.07 pts
10.32%
8 1721 Sunko Ink Co., Ltd. TAI 4.50B 24.20 0.06 pts
10.00%
9 1727 Chung Hwa Chemical Industrial Works, Ltd. TAI 14.72B 115.50 0.06 pts
8.96%
10 3430 Chitec Technology Co., Ltd. TWO 3.59B 112.50 0.06 pts
8.70%
11 2033 Chia Ta World Co., Ltd. TAI 4.48B 36.80 0.06 pts
8.55%
12 2032 Sinkang Industries Co., Ltd. TAI 2.28B 18.55 0.05 pts
8.48%
13 4707 Pan Asia Chemical Co. TWO 12.08B 30.00 0.05 pts
7.14%
14 6959 Ion Electronic Materials Co., Ltd. TWO 5.39B 131.50 0.04 pts
6.91%
15 9957 Yieh United Steel Corp. TWO 19.42B 6.00 0.04 pts
6.76%
16 6729 Luminescence Technology Corp. TWO 1.62B 57.50 0.04 pts
6.48%
17 7768 Praise Victor Industrial Co., Ltd. TAI 20.46B 304.50 0.04 pts
6.47%
18 2034 YC Inox Co.,Ltd TAI 11.69B 22.80 0.04 pts
6.29%
19 7742 Uranus Chemicals Co., LTD. TWO 6.61B 106.50 0.04 pts
5.97%
20 2104 International CSRC Investment Holdings Co., Ltd. TAI 10.96B 11.15 0.04 pts
5.69%
21 2025 Chien Shing Stainless Steel Co., Ltd. TAI 2.18B 13.10 0.04 pts
5.65%
22 2069 Yuen Chang Stainless Steel Co., Ltd. TAI 4.14B 25.70 0.03 pts
4.90%
23 4721 Mechema Chemicals International Corp. TWO 5.65B 77.40 0.03 pts
4.59%
24 2028 Wei Chih Steel Industrial Co., Ltd. TAI 5.09B 16.40 0.03 pts
4.46%
25 1101 TCC Group Holdings Co., Ltd. TAI 183.96B 25.25 0.02 pts
3.70%
26 2038 Hai Kwang Enterprise Corporation TAI 2.35B 12.55 0.02 pts
3.29%
27 2020 Mayer Steel Pipe Corporation TAI 5.78B 22.10 0.02 pts
3.27%
28 6508 Huikwang Corporation TWO 2.38B 27.35 0.02 pts
3.21%
29 4768 Ingentec Corporation TWO 15.86B 325.00 0.02 pts
3.17%
30 1708 Sesoda Corporation TAI 12.45B 52.30 0.02 pts
3.16%
31 2029 Sheng Yu Steel Co., Ltd. TAI 6.81B 21.55 0.02 pts
3.11%
32 3708 Swancor Holding Co., LTD. TAI 8.57B 99.70 0.02 pts
3.10%
33 6506 Shuang-Bang Industrial Corp. TWO 1.49B 18.60 0.02 pts
3.05%
34 2031 Hsin Kuang Steel Company Limited TAI 14.61B 46.10 0.02 pts
2.44%
35 6509 Taiwan Hopax Chemicals Manufacturing Co., Ltd. TWO 9.34B 47.55 0.02 pts
2.37%
36 1480 TM TWO 3.15B 7.67 0.01 pts
2.27%
37 4755 San Fu Chemical Co., Ltd. TAI 11.58B 115.50 0.01 pts
2.21%
38 8424 Wellpool Co., Ltd. TWO 2.48B 70.80 0.01 pts
2.16%
39 2014 Chung Hung Steel Corporation TAI 23.90B 16.90 0.01 pts
2.11%
40 1304 USI Corporation TAI 13.14B 12.50 0.01 pts
2.04%
41 4720 Tex Year Industries Inc. TAI 2.20B 19.05 0.01 pts
1.87%
42 1310 Taiwan Styrene Monomer Corporation TAI 4.61B 8.90 0.01 pts
1.71%
43 2010 Chun Yuan Steel Industry Co., Ltd. TAI 14.18B 22.35 0.01 pts
1.59%
44 1102 Asia Cement Corporation TAI 125.73B 35.70 0.01 pts
1.56%
45 4706 Tah Kong Chemical Industrial Corporation TWO 2.66B 34.00 0.01 pts
1.49%
46 5520 Lih Tai Construction Enterprise Co., Ltd. TWO 4.98B 83.20 0.01 pts
1.46%
47 1308 Asia Polymer Corporation TAI 8.40B 14.30 0.01 pts
1.42%
48 8431 Superior Plating Technology Co., Ltd. TWO 3.09B 63.30 0.01 pts
1.28%
49 1305 China General Plastics Corporation TAI 7.00B 12.10 0.01 pts
1.26%
50 6534 CH Biotech R&D Co., Ltd. TAI 9.16B 90.50 0.01 pts
1.23%
51 6655 Keding Enterprises Co., Ltd. TAI 9.87B 124.50 0.01 pts
1.22%
52 9962 Yeou Yih Steel Co., Ltd. TWO 902.20M 10.10 0.01 pts
1.00%
53 4754 INternational CArbide Technology Co., Ltd. TWO 1.14B 37.80 0.01 pts
0.93%
54 2017 Quintain Steel Co., LTD. TAI 3.84B 8.99 0.01 pts
0.90%
55 5452 UNIC Technology Corp. TWO 4.12B 27.50 0.00 pts
0.73%
56 1309 Taita Chemical Company, Limited TAI 5.47B 13.80 0.00 pts
0.73%
57 2103 TSRC Corporation TAI 23.20B 27.80 0.00 pts
0.72%
58 1773 Shiny Chemical Industrial Co., Ltd. TAI 49.65B 164.50 0.00 pts
0.61%
59 1904 Cheng Loong Corporation TAI 27.90B 24.90 0.00 pts
0.61%
60 8354 Koan Hao Technology Co., Ltd. TWO 1.33B 17.10 0.00 pts
0.59%
61 2027 Ta Chen Stainless Pipe Co., Ltd. TAI 108.42B 47.60 0.00 pts
0.53%
62 8942 Xxentria Technology Materials Co., Ltd. TWO 8.03B 40.50 0.00 pts
0.50%
63 3388 Topco Technologies Corp. TWO 6.01B 82.00 0.00 pts
0.49%
64 2064 Camellia Metal Co., Ltd. TWO 821.63M 11.80 0.00 pts
0.43%
65 2023 Yieh Phui Enterprise Co., Ltd. TAI 24.28B 13.65 0.00 pts
0.37%
66 2108 NANTEX Industry Co., Ltd. TAI 14.18B 28.70 0.00 pts
0.35%
67 1714 Ho Tung Chemical Corp. TAI 15.56B 15.75 0.00 pts
0.32%
68 6990 Plum-Monix Industry Co., Ltd. TWO 10.51B 161.00 0.00 pts
0.31%
69 1710 Oriental Union Chemical Corporation TAI 14.60B 16.40 0.00 pts
0.31%
70 5014 Chain Chon Industrial Co., Ltd. TWO 1.83B 9.91 0.00 pts
0.30%
71 4716 Daily Polymer Corp. TWO 1.60B 17.05 0.00 pts
0.29%
72 9927 Thye Ming Industrial Co., Ltd. TAI 8.44B 70.20 0.00 pts
0.29%
73 2006 Tung Ho Steel Enterprise Corporation TAI 63.02B 87.80 0.00 pts
0.23%
74 1303 Nan Ya Plastics Corporation TAI 1.84T 238.00 0.00 pts
0.00%
75 1337 Asia Plastic Recycling Holding Limited TAI 1.19B 4.45 0.00 pts
0.00%
76 1717 Eternal Materials Co., Ltd. TAI 84.56B 71.40 0.00 pts
0.00%
77 2012 Chun Yu Works & Co., Ltd. TAI 3.96B 14.20 0.00 pts
0.00%
78 2013 China Steel Structure Co., Ltd. TAI 8.28B 41.10 0.00 pts
0.00%
79 4739 Coremax Corporation TAI 9.93B 79.50 0.00 pts
0.00%
80 5009 Gloria Material Technology Corp. TWO 17.59B 32.00 0.00 pts
0.00%
81 5016 Song Ho Industrial Co., Ltd. TWO 1.23B 24.65 0.00 pts
0.00%
82 6175 Liton Technology Corp. TWO 10.43B 69.70 0.00 pts
0.00%
83 6585 DingZing Advanced Materials Inc. TAI 7.65B 105.50 0.00 pts
0.00%
84 1723 China Steel Chemical Corporation TAI 18.83B 80.50 0.00 pts
-0.12%
85 1742 Taiwan Wax Company,Ltd. TWO 1.62B 17.50 0.00 pts
-0.28%
86 2007 Yieh Hsing Enterprise Co., Ltd. TAI 3.67B 6.89 0.00 pts
-0.29%
87 1725 Yuan Jen Enterprises Co.,Ltd. TAI 6.16B 33.90 0.00 pts
-0.29%
88 6248 TMP Steel Corporation TWO 1.61B 16.80 0.00 pts
-0.30%
89 8435 Zimmite Taiwan Ltd. TWO 1.86B 52.90 0.00 pts
-0.38%
90 2073 Syong Shun Metal Co. Ltd. TWO 712.25M 25.90 0.00 pts
-0.38%
91 5538 Tong Ming Enterprise Co., Ltd. TAI 7.12B 35.30 0.00 pts
-0.42%
92 4702 Allied Industrial Corp., Ltd. TWO 674.87M 9.34 0.00 pts
-0.43%
93 8463 Ruentex Materials Co.,Ltd. TAI 3.16B 21.20 0.00 pts
-0.47%
94 1909 Longchen Paper & Packaging Co., Ltd. TAI 13.03B 10.10 0.00 pts
-0.49%
95 1712 Sinon Corporation TAI 16.80B 39.85 0.00 pts
-0.50%
96 2002 China Steel Corporation TAI 284.26B 18.65 0.00 pts
-0.53%
97 4772 Taiwan Speciality Chemicals Corporation TWO 36.18B 248.50 0.00 pts
-0.60%
98 4711 Yong Shun Chemical Co., Ltd TWO 995.21M 16.35 0.00 pts
-0.61%
99 1802 Taiwan Glass Ind. Corp. TAI 167.80B 58.40 0.00 pts
-0.68%
100 1312 Grand Pacific Petrochemical Corporation TAI 22.42B 14.60 0.00 pts
-0.68%

The index uses capped equal-weight weekly constituent returns. The ledger shows uncapped security returns so outliers remain visible for research.

Evidence context