5258 TAI Week ended 14 Aug 2026

Weekly Investor Report

Castles Technology Co., Ltd. · Industrials · Business Equipment & Supplies

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Latest close 48.10 TWD
-7.1% latest week
Weekly setup

Weak trend

The weekly trend is not active. Price is -6.4% below the Trend Line and sits at 11.1% of its 52-week range. The latest completed week returned -7.1%, after a -5.3% four-week move. Near-term considerations: volume confirmation is below normal.

Setup score 25 out of 100
Latest Close 48.10 TWD 14 Aug 2026
1W Return -7.1% latest completed week
4W Return -5.3% short-term follow-through
12W Return -16.5% quarterly tape
Trend Breadth 19.2% 10 of 52 weeks active
Volume Ratio 0.8x vs 13-week average
What is working
  • Activity pressure is positive on the latest completed week.
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 weak, so confirmation is not yet broad enough.
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.
Price follow-through -7.1% Latest completed week; four-week move -5.3%. Indicator stack 11/57 Trend and activity pressure are weighted against the latest 12-week confirmation window. Trend backdrop Active The trend backdrop defines the current weekly regime. Patient Capital Recent Activity-pressure buy-signal status for institutional accumulation timing.
01 · Price action

Where price is—and whether the trend supports it

The weekly trend is not active. Price is -6.4% below the Trend Line and sits at 11.1% of its 52-week range. The latest completed week returned -7.1%, after a -5.3% 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 0.8x 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 0.0812-week average 0.09

12-week confirmation

Trend active0/12Active trend-backdrop weeks in the latest 12-week window.
Positive pressure12/12Weeks with constructive activity pressure in the latest 12-week window.
Positive leadership0/12Weeks with positive relative leadership in the latest 12-week window.
Activity pressure0.08Current proprietary activity-pressure read.
Buy signals1Accumulation 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 -5.3% over four weeks, -16.5% over 12 weeks, and -32.4% over one year. The current trend has remained active for 0 consecutive weeks.

Performance by holding period

1W-7.1%
4W-5.3%
12W-16.5%
26W-11.6%
52W-32.4%
Active trend streak0 weeks
Active weeks in one year10
Trend breadth19.2%

Activity pressure vs relative leadership

Activity pressureRelative leadership
Pressure0.42Latest activity-pressure read.
Pressure change-2.0%Four-week change in activity pressure.
Leadership-45.04Latest relative-leadership reading.
RS change-7.8%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 CapitalRecent

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

Recent buy signal in the last 8 weeks
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-41.7%Distance below the 52-week high.
13-week volatility6.2%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 higher12 of 2614 weeks finished lower.
Best week+11.9%Week of 8 May.
Worst week-13.2%Week of 29 May.
Latest week-7.1%Week of 14 Aug.

Shape of recent returns

Strong gains5
Modest gains7
Flat weeks0
Modest losses7
Sharp losses7
Recent vol6.2%13-week weekly-return volatility.
Base vol5.7%52-week weekly-return volatility.
Up/down split22/29Count of positive and negative weeks in the 52-week window.
Average skew4.6% / -4.6%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.

Weekly tape25/100

Trend, activity pressure, participation, and risk combine to a 25/100 tape read.

 Indicator analysis31/100

Latest 12-week confirmation: trend 0/12, activity pressure 12/12, relative leadership 0/12.

Activity pressure 0.08; No reversal markers Factors50/100

No published factor snapshot is available yet.

 Patient CapitalRecent

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

Recent buy signal in the last 8 weeks Sentiment50/100

No sentiment snapshot is stored yet.

 Insiders50/100

No recent insider transaction evidence is stored.

 Earnings50/100

No stored earnings event is currently attached to this ticker.
WeekCloseReturnTrend LineFair ValuePressureLeadershipVolumeTrend
14 Aug 202648.10 TWD-7.1%51.40 TWD86.47 TWD0.42-45.043.2MOff
7 Aug 202651.80 TWD0.4%51.89 TWD86.83 TWD0.56-39.852.5MOff
31 Jul 202651.60 TWD-1.0%52.37 TWD87.24 TWD0.53-39.602.6MOff
24 Jul 202652.10 TWD2.6%52.97 TWD87.67 TWD0.51-40.722.1MOff
17 Jul 202650.80 TWD-3.8%53.66 TWD88.07 TWD0.43-41.774.1MOff
10 Jul 202652.80 TWD1.5%54.42 TWD88.34 TWD0.39-43.950Off
3 Jul 202652.00 TWD11.7%55.08 TWD88.59 TWD0.36-47.222.7MOff
26 Jun 202646.55 TWD-8.0%55.56 TWD88.87 TWD0.35-51.102.8MOff
19 Jun 202650.60 TWD1.2%56.12 TWD89.22 TWD0.52-49.721.8MOff
12 Jun 202650.00 TWD-0.6%56.63 TWD89.39 TWD0.73-48.433.3MOff
5 Jun 202650.30 TWD0.6%57.21 TWD89.57 TWD0.91-49.874.1MOff
29 May 202650.00 TWD-13.2%57.91 TWD89.73 TWD1.03-50.529.7MOff
22 May 202657.60 TWD7.7%58.76 TWD89.90 TWD0.71-40.5513.7MOff
15 May 202653.50 TWD0.4%59.20 TWD90.02 TWD0.35-44.0817.6MOff
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