6641 TAI Week ended 14 Aug 2026

Weekly Investor Report

GSD Technologies Co., Ltd. · Industrials · Pollution & Treatment Controls

Latest close 17.90 TWD
-0.6% latest week
Weekly setup

Mixed setup

The weekly trend is not active. Price is -5.2% below the Trend Line and sits at 12.1% of its 52-week range. The latest completed week returned -0.6%, after a 1.1% four-week move. The latest news-sentiment score is 50/100.

Setup score 35 out of 100
Latest Close 17.90 TWD 14 Aug 2026
1W Return -0.6% latest completed week
4W Return 1.1% short-term follow-through
12W Return -0.4% quarterly tape
Trend Breadth 3.8% 2 of 52 weeks active
Volume Ratio 2.8x vs 13-week average
What is working
  • Activity pressure is positive on the latest completed week.
  • Volume is elevated versus the 13-week average, confirming attention.
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.
  • Next-week expectancy is negative at 32.79% based on similar historical setup states.
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 -5.2% below the Trend Line and sits at 12.1% of its 52-week range. The latest completed week returned -0.6%, after a 1.1% 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 2.8x the 13-week average. Participation is unusually strong and confirms that the move is attracting attention.

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 0.0912-week average 0.04

12-week confirmation

Trend active0/12Active trend-backdrop weeks in the latest 12-week window.
Positive pressure7/12Weeks with constructive activity pressure in the latest 12-week window.
Positive leadership0/12Weeks with positive relative leadership in the latest 12-week window.
Activity pressure0.09Current 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 1.1% over four weeks, -0.4% over 12 weeks, and -17.5% over one year. The current trend has remained active for 0 consecutive weeks.

Performance by holding period

1W-0.6%
4W1.1%
12W-0.4%
26W-13.6%
52W-17.5%
Active trend streak0 weeks
Active weeks in one year2
Trend breadth3.8%

Activity pressure vs relative leadership

Activity pressureRelative leadership
Pressure0.30Latest activity-pressure read.
Pressure change-6.9%Four-week change in activity pressure.
Leadership-34.88Latest relative-leadership reading.
RS change0.6%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 sentiment50/100

Weighted news tone is neutral across 0 relevant articles.

0 positive · 0 neutral · 0 negative
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-35.4%Distance below the 52-week high.
13-week volatility2.2%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 2617 weeks finished lower.
Best week+5.8%Week of 8 May.
Worst week-7.7%Week of 6 Mar.
Latest week-0.6%Week of 14 Aug.

Shape of recent returns

Strong gains2
Modest gains6
Flat weeks1
Modest losses13
Sharp losses4
Recent vol2.2%13-week weekly-return volatility.
Base vol4.7%52-week weekly-return volatility.
Up/down split14/36Count of positive and negative weeks in the 52-week window.
Average skew4.4% / -2.1%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 202617.90 TWD-0.6%18.89 TWD29.18 TWD0.30-34.88707.6KOff
7 Aug 202618.00 TWD2.9%18.92 TWD29.34 TWD0.19-33.26129.0KOff
31 Jul 202617.50 TWD-2.0%18.95 TWD29.50 TWD0.22-34.50152.0KOff
24 Jul 202617.85 TWD0.8%18.99 TWD29.67 TWD0.39-35.02254.0KOff
17 Jul 202617.70 TWD-4.6%19.02 TWD29.84 TWD0.32-35.08225.6KOff
10 Jul 202618.55 TWD3.0%19.05 TWD30.02 TWD0.28-36.990Off
3 Jul 202618.01 TWD2.5%19.07 TWD30.20 TWD0.10-41.61661.0KOff
26 Jun 202617.57 TWD-2.2%19.11 TWD30.38 TWD-0.15-41.19274.0KOff
19 Jun 202617.97 TWD0.0%19.17 TWD30.57 TWD-0.28-43.19140.0KOff
12 Jun 202617.97 TWD-2.1%19.27 TWD30.75 TWD-0.47-41.18204.0KOff
5 Jun 202618.36 TWD2.5%19.37 TWD30.94 TWD-0.59-42.05287.0KOff
29 May 202617.92 TWD-0.3%19.46 TWD31.13 TWD-0.58-43.98232.0KOff
22 May 202617.97 TWD-0.3%19.54 TWD31.31 TWD-0.73-41.5468.0KOff
15 May 202618.01 TWD-4.2%19.61 TWD31.50 TWD-0.69-40.75206.0KOff
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