2504 TAI Week ended 14 Aug 2026

Weekly Investor Report

Goldsun Building Materials Co., Ltd. · Basic Materials · Building Materials

Latest close 30.45 TWD
-1.0% latest week
Weekly setup

Weak trend

The weekly trend is not active. Price is -7.9% below the Trend Line and sits at 4.2% of its 52-week range. The latest completed week returned -1.0%, after a -4.2% four-week move. Near-term considerations: volume confirmation is below normal.

Setup score 21 out of 100
Latest Close 30.45 TWD 14 Aug 2026
1W Return -1.0% latest completed week
4W Return -4.2% short-term follow-through
12W Return -5.3% quarterly tape
Trend Breadth 11.5% 6 of 52 weeks active
Volume Ratio 0.5x vs 13-week average
What is working
  • No strong opportunity cluster is confirmed yet; monitor trend and activity pressure.
What could go wrong
  • The trend backdrop is inactive, so price action has not confirmed a constructive regime.
  • Price is below the Trend Line, which keeps downside pressure in focus.
  • Price is below Fair Value, so the market is still discounting the latest tape.
  • Activity pressure is negative, which weakens the current setup.
What to watch next
  • Trend Line remains the key weekly regime level.
  • Activity pressure is the gauge to monitor for confirmation or fade.
  • A volume ratio above 1.5x would show stronger participation in the next move.
01 · Price action

Where price is—and whether the trend supports it

The weekly trend is not active. Price is -7.9% below the Trend Line and sits at 4.2% of its 52-week range. The latest completed week returned -1.0%, after a -4.2% four-week move.

Study the full chart

52-week price path

Price vs Trend Line and Fair Value
Price Trend Line Fair Value
02 · Volume and demand

Is real participation confirming the move?

Latest weekly volume is 0.5x the 13-week average. Participation is below its recent norm, so price strength is not receiving full volume confirmation.

26-week volume confirmation

Bar height shows volume; colour shows the weekly price direction
13 Feb 27 Feb 6 Mar 13 Mar 20 Mar 27 Mar 3 Apr 10 Apr 17 Apr 24 Apr 1 May 8 May 15 May 22 May 29 May 5 Jun 12 Jun 19 Jun 26 Jun 3 Jul 10 Jul 17 Jul 24 Jul 31 Jul 7 Aug 14 Aug
Up week Down week
Demand beneath price

Activity pressure and institutional-style signals

These indicators assess whether participation is improving beneath the headline price move. They are supporting evidence, not proof of institutional buying.

Activity pressure path

Latest 0.0512-week average 0.07

12-week confirmation

Trend active0/12Active trend-backdrop weeks in the latest 12-week window.
Positive pressure3/12Weeks with constructive activity pressure in the latest 12-week window.
Positive leadership0/12Weeks with positive relative leadership in the latest 12-week window.
Activity pressure0.05Current proprietary activity-pressure read.
Buy signals0Accumulation signal count in the latest 12 weeks.
Reversal markers0No reversal markers

No recent accumulation markers. No reversal markers.

03 · Momentum and leadership

Is performance persistent—and is the stock leading?

Performance is -4.2% over four weeks, -5.3% over 12 weeks, and -14.8% over one year. The current trend has remained active for 0 consecutive weeks.

Performance by holding period

1W-1.0%
4W-4.2%
12W-5.3%
26W-6.8%
52W-14.8%
Active trend streak0 weeks
Active weeks in one year6
Trend breadth11.5%

Activity pressure vs relative leadership

Activity pressureRelative leadership
Pressure-1.19Latest activity-pressure read.
Pressure change-301.9%Four-week change in activity pressure.
Leadership-35.53Latest relative-leadership reading.
RS change-11.7%Four-week change in relative leadership.
04 · Fundamentals and valuation

What investors are paying for—and the quality behind it

A published fundamentals and factor snapshot is not available for this company.

Open full factor analysis

No published fundamental snapshot is available for this company.

05 · Ownership, options, and sentiment

What other market participants are doing

Options, insider transactions, market sentiment, and activity-pressure signals can confirm or challenge the price story. None should be used alone.

Insider activity-

No recent insider transactions are stored for this company.

News sentiment-

No current sentiment snapshot is stored.

Patient CapitalQuiet

Activity-pressure buy-signal evidence highlights potential institutional accumulation windows.

No recent buy signal
06 · Catalysts and risk

What can move the shares—and how volatile the path has been

Event timing, options-implied movement, drawdown, and weekly return distribution frame the risk around the current setup.

Next earnings-No event is currently stored.
Options expected move-Nearest-chain priced movement where available.
52-week drawdown-18.2%Distance below the 52-week high.
13-week volatility1.9%Standard deviation of weekly returns.

Weekly gains and losses

Latest 26 completed weeks

Each bar is one week. Gains rise above the zero line; losses fall below it. Taller bars mean a larger weekly move.

Weeks higher8 of 2618 weeks finished lower.
Best week+4.9%Week of 5 Jun.
Worst week-4.6%Week of 3 Apr.
Latest week-1.0%Week of 14 Aug.

Shape of recent returns

Strong gains1
Modest gains7
Flat weeks0
Modest losses17
Sharp losses1
Recent vol1.9%13-week weekly-return volatility.
Base vol2.1%52-week weekly-return volatility.
Up/down split18/33Count of positive and negative weeks in the 52-week window.
Average skew2.1% / -1.6%Average positive week versus average negative week.
07 · Sector and peer context

Is this stock leading—or simply moving with its group?

Sector and industry breadth distinguish company-specific strength from a broad group move.

08 · Evidence and weekly data

The underlying research record

Every top-level statement above should be traceable to a stored market, fundamental, event, or positioning observation.

WeekCloseReturnTrend LineFair ValuePressureLeadershipVolumeTrend
14 Aug 202630.45 TWD-1.0%33.06 TWD34.32 TWD-1.19-35.537.6MOff
7 Aug 202630.75 TWD-1.4%33.20 TWD34.27 TWD-1.02-33.5817.4MOff
31 Jul 202631.20 TWD-1.6%33.35 TWD34.21 TWD-0.84-31.8411.1MOff
24 Jul 202631.70 TWD-0.3%33.47 TWD34.15 TWD-0.51-32.578.8MOff
17 Jul 202631.80 TWD-0.9%33.55 TWD34.09 TWD-0.30-31.8218.0MOff
10 Jul 202632.10 TWD-1.8%33.59 TWD34.03 TWD-0.01-36.220Off
3 Jul 202632.70 TWD-0.3%33.62 TWD33.97 TWD0.24-37.9528.7MOff
26 Jun 202632.80 TWD-2.4%33.63 TWD33.90 TWD0.26-35.7335.8MOff
19 Jun 202633.60 TWD-2.0%33.63 TWD33.83 TWD0.05-37.9326.0MOff
12 Jun 202634.30 TWD1.8%33.61 TWD33.76 TWD-0.26-34.5222.9MOff
5 Jun 202633.70 TWD4.9%33.61 TWD33.68 TWD-0.61-38.0019.5MOff
29 May 202632.12 TWD-0.1%33.60 TWD33.61 TWD-0.83-41.3511.6MOff
22 May 202632.16 TWD1.5%33.65 TWD33.54 TWD-0.83-38.799.2MOff
15 May 202631.70 TWD-1.7%33.62 TWD33.48 TWD-0.72-39.0110.2MOff
How to use this report

This is a completed-week research summary. It explains the available evidence and its conflicts; it does not predict a guaranteed outcome or replace your own risk assessment. Fundamental figures may refer to an earlier financial reporting period, which is shown above.

Evidence context