Sharemaestro company-news research for United Microelectronics Corporation (2303), showing current tone, evidence confidence, direct company coverage, sector and industry context, completed price response and the source headlines used on the page. Scores describe published news evidence. Confidence describes the amount, freshness, source breadth and direct company relevance of that evidence. Price context is shown separately.

TAI Taiwan Insufficient evidence

Company news sentiment

2303 news sentiment

United Microelectronics Corporation

Company headlines from the last 30 days, weighted by freshness, relevance, publisher quality and the strength of the wording. Price is shown separately.

30-day score50Neutral is 50
No current sentiment signal 0/100 evidence confidence 0% direct company focus 0 current stories across 0 publishers
SectorTechnologywider market group
IndustrySemiconductorscompany peer group
Latest weekly closeTWD 116.00week of 7 Aug 2026
Main news subjectMarket update0/100 share of current news
News data statusHealthy0 duplicate stories removed

Current company news

No current company-news score

No company-specific headline in the last 30 days currently passes the date and relevance checks. The displayed 50 means no score, not a neutral view.

Available information

Market context

-4.1% over one week, -25.6% over four weeks, trend active, and materially above fair value.

Why there is no score

Company coverage

No recent company story is strong enough to produce a score.

Confidence

Confidence is 0/100, below the threshold for a firm score.

50/100
News scoreNo current sentiment signal
0/100
Confidencethin evidence
0%/100
Company news0 company stories
N/A/100
Story agreementrequires at least 2 stories

News history

Daily score and story count over 30 days

Daily weighted evidence
No 30-day history yet

The chart will begin when a dated company headline passes the relevance and freshness checks.

Confidence

How reliable the score is

Separate from direction

Confidence uses the amount of news, separate publishers, direct company relevance, freshness and agreement. A high or low score is not automatically reliable.

Amount of evidence0
0 after freshness weighting
Source breadth0
0 independent publishers
Company relevance0
share tied directly to this company
Freshness0
recency-weighted evidence
Agreement0
requires at least 2 stories
Publisher mix0
less reliance on one publisher

Price and news history

News score and weekly price over 26 weeks

No current news signal

No sufficiently fresh, directly relevant company news is available for a price comparison.

06 Feb 2026: close 60.86, indexed 100.013 Feb 2026: close 61.74, indexed 101.527 Feb 2026: close 64.3, indexed 105.706 Mar 2026: close 60.96, indexed 100.213 Mar 2026: close 58.5, indexed 96.120 Mar 2026: close 56.83, indexed 93.427 Mar 2026: close 56.83, indexed 93.403 Apr 2026: close 52.7, indexed 86.610 Apr 2026: close 60.96, indexed 100.217 Apr 2026: close 71.77, indexed 117.924 Apr 2026: close 73.25, indexed 120.401 May 2026: close 76.0, indexed 124.908 May 2026: close 89.76, indexed 147.515 May 2026: close 108.15, indexed 177.722 May 2026: close 112.08, indexed 184.229 May 2026: close 142.07, indexed 233.405 Jun 2026: close 129.29, indexed 212.412 Jun 2026: close 131.25, indexed 215.719 Jun 2026: close 143.05, indexed 235.126 Jun 2026: close 161.24, indexed 264.903 Jul 2026: close 167.63, indexed 275.410 Jul 2026: close 156.0, indexed 256.317 Jul 2026: close 144.0, indexed 236.624 Jul 2026: close 128.0, indexed 210.331 Jul 2026: close 121.0, indexed 198.807 Aug 2026: close 116.0, indexed 190.6 14 Aug 2026: news score 50, close , stories50
06 Feb15 May07 Aug
Weekly close, indexedSentiment score
26-week price+90.6%latest close 116.0
News score changeNot measuredfirst to latest comparable week
One-week response-4.1%Price reacting lower
Fair-value position+116.9%Materially above fair value
WeekNews scoreCloseWeekly move
14 Aug 202650TWD
Insufficient evidence

News subjects

What is shaping the score

Market update

News subjects will appear when current company stories are available.

Source mix

Where the evidence comes from

0/100 independence

No current publisher evidence is available.

Recurring subjects

Subjects appearing most often

Current evidence

Topic structure will appear when classified tags are present in the current feed.

Earlier readings

How the score has changed

4 comparable readings · 6 days
Past and present use the same method.Each point recalculates the previous 30 days of stored company headlines with today's scoring rules. The original stored snapshots remain unchanged.
Comparable move+050 to 50 · Broadly stable
Observed range50–5150 is the neutral baseline
Evidence depth3stories at latest stored reading · +2
Confidence21/100Provisional · +21
08 Aug50 neutral15 Aug 02:51
ConstructiveBalanced or withheldCautious

Changes in the stored score

Scores are rebuilt from stored headlines with the current 30-day method. Days with no change are collapsed.

ObservedScoreMoveConfidenceStoriesStatus
15 Aug 02:5150-121/100 (-8)3 (0)Provisional
12 Aug 23:5951+129/100 (+29)3 (+1)Provisional
10 Aug 23:5950+00/100 (0)2 (+1)Insufficient
08 Aug 23:5950Start0/1001Insufficient

Source headlines

The news behind the score

No current company news

Only company-specific stories enter this score. The latest 30 days are shown newest first, with newer stories weighted more heavily and duplicate coverage combined.

No current company news qualifies

No company-specific headline in the last 30 days currently meets the relevance and date checks. Older readings remain in the history below.

Earlier company news

2303 news archive

Archive building

Stored newest first for historical research. It starts after the newest three pages above and then continues through older news. Each archive page is loaded only when it is opened.

Older news is kept in the archive

The archive will appear as more 2303 headlines are stored.

Provider matches checked

Provider mentions not used in the score

3 not scored

A news provider linked these stories to 2303, but the headline and available text are not mainly about United Microelectronics Corporation. They are kept here for transparency and do not affect the score, confidence, history or wider market totals.

Provider mentions are kept separate

Open the list to see which provider matches were checked and left out of 2303 sentiment.

Open provider mentions

How the page works

How to read the score

The score shows direction

It describes the weighted balance of qualifying headlines. A score of 50 can mean balanced news or that there is not enough evidence; the status label explains which.

Confidence is separate

Confidence measures depth, source breadth, direct relevance, freshness and agreement. It does not rise merely because the tone is extreme.

Price is confirmation

Weekly price response, trend and fair-value position test whether the market is accepting or rejecting the news. They never rewrite the news score.

What the page does

It measures news already published. It is not a forecast, recommendation or price target.

Evidence context