Weekly Chart PackCompleted weekly market data · Independent research
TAI · Equity · Taiwan
2478
TA-I Technology Co., Ltd.
TechnologyElectronic Components
TA-I Technology Co., Ltd. manufactures, processes, and trades in chip resistors in Taiwan and internationally. The company provides a range of chip resistors, including current sensing components, thick film, thin film, and anti-surge and anti-sulfurization products; surface mount and assembly; high voltage, array/network, surge, and lead free products; and other electronic parts and components, as well as circuit protection products, such as fuse products. Its products are used in the field of …
Last updated
21 Aug 2026
Exchange
Taiwan Stock Exchange · TAI
Sector
Technology
Industry
Electronic Components
Currency
TWD
Market capitalisation
18,269,612,032
Fair value reference
58.33
Next-week expectancy
Undecided · 49.95%
Executive chart read
Over the latest 12 completed weeks ending 2026-08-21, 2478 fell 16.75%, moving from 148.34 to 123.50. The latest weekly close is above the Trend Line and above Fair Value. Trend Signal is active on the latest week and was active in 12 of the last 12 weeks. Relative Strength is 14.39 and has softened across the 12-week window. Market Dynamics is -0.45 on the latest week. Next-week expectancy is undecided at 49.95% based on similar historical setup states.
Week Ending
21 Aug 2026
Latest Close
123.50
12-Week Change
-16.75%
Trend Signal
Active
Next-Week Expectancy
Undecided 49.95%
Signal Weeks
12 of 12
Weekly Price
Weekly Close
Trend Line
Fair Value
Activity Lines
Chart Panels
Choose up to 5 panels. Drag panel headers to reorder.
Price Action
Completed weekly market tape
Price Action
A deep view of how price is behaving against its own completed history, trend, structural levels and participation.
Current weekly interpretationDeclining structure with indecisive week
Recent completed price swings are progressing lower on both sides of the range. Price is above its completed-week trend reference and that reference is rising.
Full context · Mixed confirmation
Current structureDeclining structure
Recent completed price swings are progressing lower on both sides of the range.
Trend relationshipAbove a rising trend
Price is above its completed-week trend reference and that reference is rising.
Support and resistanceSupport 76.08 · Resistance 126.09
Nearest completed structural references around the latest close.
The negative weekly move attracted clearly elevated participation.
Price, structure and participation
Where price advanced, failed, reclaimed or lost important ground
Candles preserve the completed weekly tape. Selected annotations identify meaningful finished events and point directly to the week concerned.
Up weekDown weekTrend referenceCompleted supportCompleted resistanceVolumeTypical volumePublished event
What happened this week?
The latest completed candle
The latest week is separated into price change, candle character, closing position and path quality.
Weekly move-3.52%
Latest close versus the preceding completed close.
Candle characterIndecisive week
The open and close finished close together, showing limited control by either side.
Where the week closedLower part of the range
The close finished at 31% of the completed weekly range.
Path qualityMixed confirmation
Recent price structure and the longer trend relationship are not fully aligned.
Current evaluation
What the weekly tape says now
The interpretation combines completed price structure, trend relationship, participation and path quality.
What supports it
Recent completed price swings are progressing lower on both sides of the range.
What would improve it
A sustained close above the nearest completed resistance, supported by firmer participation, would improve confirmation.
What could weaken it
A sustained loss of the nearest completed support would materially weaken the current price structure.
What to watch next
Trend relationship is above a rising trend; participation is strong negative participation, and path quality is mixed confirmation.
Statistical perspective
Where the latest close sits in its own completed history
These observations describe the available record. They are market context, not predictions of the next move.
Position in completed history44% of range
The latest close's location between the lowest and highest completed closes available for this market.
Distance from completed high-47.5%
How far the latest close sits below the highest completed close in the available history.
Recovery from completed low+255.3%
How far the latest close has advanced from the lowest completed close in the available history.
Latest move versus typical1.5× typical
The absolute latest weekly move compared with completed weekly moves available before it.
Completed event history
What changed, and when
Only selected completed events are shown. Each annotation is descriptive, not a standalone instruction.
Support structure lost
The weekly close moved below the preceding completed price structure.
3 weeks ago
Upside structure cleared
The weekly close moved above the preceding completed price structure.
9 weeks ago
Trend reclaimed
The weekly close moved back above the completed trend reference.
19 weeks ago
High-participation reversal
Price changed weekly direction with elevated participation.
23 weeks ago
Trend lost
The weekly close moved below the completed trend reference.
49 weeks ago
Range
Sharemaestro Range
Where price is trading
The fitted range, accepted trading area and strongest price levels are calculated automatically from completed weekly market data.
Current stateInside accepted value
52-week position
39.4%
Low to high
Accepted price
63.15
Latest versus accepted: 95.57%
Fitted direction
Rising
1.28% per week
Range pressure
43/100
Balanced pressure
Range condition
Normal
1.23× normal range
Range pressureCurrent range pressure · 50 is balanced
Weekly closeFitted rangeActivity ribbonEstimated activity at priceAutomatic level
Automatic structure
Strongest price levels
Support55.38
From price
-55.2%
Evidence
85/100
Touches
6
Support63.15
From price
-48.9%
Evidence
100/100
Touches
5
Support97.90
From price
-20.7%
Evidence
30/100
Touches
1
Current pivot125.67
From price
1.8%
Evidence
63/100
Touches
3
Resistance250.70
From price
103.0%
Evidence
26/100
Touches
1
Current reading
What the range shows
Current positionInside accepted value
Price is at 39.4% of its latest 52-week range.
Fitted directionRising
The fitted centre line is moving +1.28% per week.
Range pressureBalanced pressure
The current pressure reading is 43/100; 50 is balanced.
Next structural level250.70
Resistance is 103.0% from the latest close with 26/100 evidence strength.
Point & Figure
Price structure · volume at price
Point & Figure market structure
Each X marks a rising price box and each O marks a falling price box. Time is removed from the horizontal scale so reversals, breakouts and areas of heavy trading stand out.
MethodAdaptive scale
Smart Money
Completed-week positioning evidence
Smart Money
See whether the support beneath price is strengthening, weakening, confirming the trend or warning of increased risk.
Current Smart Money readSmart Money evidence is mixed
Some visible evidence is supportive, but the combined picture does not yet justify a strong conclusion.
Momentum 0.86 · Holding steady
Trend qualityStrong alignment
The current trend state has persisted for 47 completed weeks; visible confirmation is strong alignment.
Momentum pathStrong · Holding steady
The latest completed-week level and direction.
Latest positive signalNo recent positive signal
The chart is carrying context rather than a fresh positive event marker.
Risk and warningsNormal
No recent reversal warning is present in the completed-week record.
Price, support and published events
Where confirmation strengthened or risk increased
Selected annotations highlight meaningful completed-week events; every existing chart series and marker remains visible.
Close Price
Trend Line
Demand Threshold Line
Reversal Risk Level
Current evaluation
What the Smart Money chart means now
The reading combines the finished chart state, its direction and the timing of published signals.
What supports it
The current trend relationship and completed-week context are broadly aligned.
What would improve it
Continued alignment without a new warning would reinforce the current constructive position.
What could weaken it
There is no fresh positive event marker, so the current reading depends on continued confirmation rather than a new signal.
Published signal history
What changed, and when
Event markers are observations, not standalone instructions to buy or sell.
No published Smart Money event marker appears in the completed history currently shown.
Market Dynamics
Price and underlying support
Market Dynamics
See whether the support beneath price is strengthening, weakening, confirming the move or beginning to diverge from it.
Zero lineMarket Dynamics Rate of ChangePrice ActionVolume ActionFlip UpFlip Down
Price Cycle
Completed-week market perception
Price Cycle
A deep view of whether price pressure is strong, weak, strengthening, fading or moving through a higher-risk transition.
Current Price Cycle readPositive pressure is historically strong, but cooling
Positive pressure is elevated relative to the completed history. Positive pressure remains, but it is becoming less forceful.
+111.74% · Historically strong · Cooling
Market positionHistorically strong
Positive pressure is elevated relative to the completed history.
Pressure directionCooling
Positive pressure remains, but it is becoming less forceful.
Trend qualityUnstable
The recent path has changed direction frequently, reducing confidence in persistence.
Risks and warningsCooling from elevated strength
Pressure remains positive, but an historically elevated reading has started to fade.
Pressure, price and published transitions
Where market perception strengthened, faded or changed state
The percentage reading is primary. Weekly close is retained only as market context; selected annotations identify meaningful completed transitions.
Market PerceptionPositive pressureNegative pressureWeekly CloseBalanceCrossed upCrossed downPublished transition or Price Action signal
Current evaluation
What the Price Cycle says now
The evaluation combines the finished pressure state, its direction, persistence and historical context.
What supports it
Price remains in positive market-perception territory.
What would improve it
Renewed upward pressure without further loss of path quality would restore confidence.
What could weaken it
Pressure remains positive, but an historically elevated reading has started to fade.
What to watch next
The latest path is cooling with unstable trend quality. Comparable history is soft follow-through.
Statistical perspective
How unusual, persistent and historically consequential is this position?
Historical observations describe completed evidence. They do not predict the next price move.
Historical positionUpper 3% of history
The latest reading is stronger than 97% of completed observations.
State persistence49 completed weeks
The current historically strong state has persisted without interruption.
Comparable historySoft follow-through
Across 65 comparable completed observations, later closes were higher 38% of the time; the typical move was -2.3%. This is context, not a forecast.
Published transition history
What changed, and when
Transitions are completed observations, not standalone instructions to buy or sell.
Positive pressure began cooling
Strength remained positive, but the completed path became less forceful.
6 weeks ago
Elevated strength
Positive pressure entered an historically strong position.
19 weeks ago
Positive pressure began cooling
Strength remained positive, but the completed path became less forceful.
21 weeks ago
Positive pressure began cooling
Strength remained positive, but the completed path became less forceful.
27 weeks ago
Positive pressure began cooling
Strength remained positive, but the completed path became less forceful.
35 weeks ago
Positive pressure began cooling
Strength remained positive, but the completed path became less forceful.
37 weeks ago
VWAP Control
Completed-week volume-weighted structure
VWAP Control
Shows price against its completed-week volume-weighted references, changes in control and the levels that would confirm or weaken the current reading.
Current controlControl is contested
Price is below the core VWAP, which is rising. 80% of recent weighted activity has been accepted above it.
53/100 pressure
ControlControl is contested
Pressure 53/100 and -20.8 points over four weeks.
VWAP stack2 of 6 below price
4 references converge near 118.02: Swing low, 26-week VWAP, Year VWAP, 52-week VWAP.
Acceptance80% above
Share of recent completed weighted activity accepted on the prevailing side of the core VWAP.
Core direction+0.7% / week
Four-week direction; change in pace -4.4 pts.
Stretch0.1 normal ranges below
Price is -2.9% from the core VWAP.
Persistence1 completed week
Price has remained below the core VWAP.
Price, VWAP structure and control transfers
Where control changed
156 completed weeks · Reported weekly volume
Weekly close13-week VWAP26-week VWAP52-week VWAPHigh-activity anchorNormal VWAP rangePositive transferNegative transfer
Seller control50 · contestedBuyer control
Current VWAP signals
Control, agreement and concentration
Control transfer weakening
Control transfer weakening
Price has completed its first move below the core VWAP; recovery or further acceptance below will decide the next state.
Price and VWAP pressure broadly agree
No material six-week disagreement is present between price direction and VWAP control.
VWAP cluster present
4 references converge near 118.02: Swing low, 26-week VWAP, Year VWAP, 52-week VWAP.
Confirmation and failure levels
Levels that change the current reading
Confirmation123.74
A completed close above Swing low with pressure holding above 60 would strengthen buyer control.
Decision area123.74
Swing low at 123.74, 0.2% above the latest close.
Weakening level118.65
A completed close below Year VWAP with acceptance moving under 50% would weaken the present structure.
Current VWAP stack
Volume-weighted price levels
Swing low123.74
+0.19% from close
26-week VWAP127.23
+3.02% from close
Year VWAP118.65
-3.92% from close
52-week VWAP102.47
-17.03% from close
13-week VWAP155.96
+26.28% from close
High-activity anchor159.38
+29.05% from close
Estimated activity position
Activity above and below price
Below price 65%Above price 35%
25%near price
Most recent weighted activity is below price, leaving a larger estimated cushion beneath the market.
Estimated from completed weekly typical prices and reported activity; it is not holder-level cost-basis data.
Benchmark, sector and industry
VWAP control comparison
Sector and industry comparisons require at least ten constituents with aligned completed history.
Benchmark · ^TWIIWeaker control than reference
Weaker control than reference; control-score gap -30.7 points.
Buyers firmly in control · 84/100
Sector · TechnologyBroadly aligned with reference
Broadly aligned with reference; control-score gap -8.2 points.
Buyer control developing · 61/100
Industry · Electronic ComponentsWeaker control than reference
Weaker control than reference; control-score gap -11.3 points.
Buyer control developing · 65/100
Historical VWAP outcomes
Reclaims, losses and similar states
Descriptive outcomes from this ticker's visible history—not a forecast.
Weekly reclaim64% favourable
Events
11
Median 4w
+1.74%
Median 13w
+6.05%
Typical best
+16.98%
Typical worst
-8.47%
Completed occasions when price moved back above the core VWAP.
Weekly loss30% favourable
Events
10
Median 4w
+2.87%
Median 13w
+11.67%
Typical best
+19.23%
Typical worst
-2.93%
Completed occasions when price moved below the core VWAP.
Comparable control states8 matched weeks
Positive after 4w
63%
Median 4w
+0.78%
Positive after 13w
50%
Median 13w
+5.81%
Best / worst 13w
+178.4% / -10.3%
Outcomes after completed weeks with a similar control score and the same side of the core VWAP.
VWAP control history
Completed changes
Core VWAP lost
Price completed the week below the core VWAP.
Core VWAP reclaimed
Price completed the week back above the core VWAP.
VWAP reclaim rejected
Price tested above the core VWAP but completed the week back below it.
Core VWAP lost
Price completed the week below the core VWAP.
Core VWAP test held
Price traded through the core VWAP but recovered above it by the completed close.
Core VWAP test held
Price traded through the core VWAP but recovered above it by the completed close.
Core VWAP reclaimed
Price completed the week back above the core VWAP.
VWAP reclaim rejected
Price tested above the core VWAP but completed the week back below it.
Next-State Map
Next-State Map
Historical one-week transition paths from similar completed-week states.
SMI
Proprietary completed-week evidence
SMI
See whether the underlying conditions beneath price are strengthening, weakening or holding firm.
Current SMI readUnderlying support is constructive, with early moderation
Price and SMI are not presenting a decisive combined message. The latest reading is based on completed weekly evidence.
0.76 · Constructive
Current stateConstructive · 0.76
Latest completed-week SMI reading
DirectionWeakening
How the completed SMI path is changing
PersistenceNew
1 completed week in the current state
Price relationshipMixed relationship
Price and SMI are not presenting a decisive combined message.
Price and SMI transitions
Where underlying support changed
Annotations identify selected completed SMI state changes.
Weekly CloseTrend LineFair ValueActivity Lines
SMI pathDirection, persistence and turning points
SMI 0.76 · Constructive
ImprovingHolding steadyWeakening
SMI in context
Comparable SMI states have carried a positive historical bias
Across 20 comparable completed observations, 65.0% closed higher after 13 weeks. The median move was +33.8%.
Comparable observations
20
Completed historical readings
Positive outcomes
65.0%
After 13 completed weeks
Median move
+33.8%
Over the following 13 weeks
Versus normal baseline
+15.8 pts
Difference in positive outcome rate
Chart Summary
Key Points
Week Ending
21 Aug 2026
Latest Close
123.50
12-Week Change
-16.75%
Trend Signal
Active
Next-Week Expectancy
Undecided 49.95%
Signal Weeks
12 of 12
Vs Trend Line
Above
Vs Fair Value
Above
Relative Strength
14.39
Market Dynamics
-0.45
Over the latest 12 completed weeks ending 2026-08-21, 2478 fell 16.75%, moving from 148.34 to 123.50. The latest weekly close is above the Trend Line and above Fair Value. Trend Signal is active on the latest week and was active in 12 of the last 12 weeks. Relative Strength is 14.39 and has softened across the 12-week window. Market Dynamics is -0.45 on the latest week. Next-week expectancy is undecided at 49.95% based on similar historical setup states.
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