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Help me set up FinLab and analyze 4960 誠美材. Please read: https://finlab.finance/en/setup?stock=4960

4960

誠美材 Optoelectronics As of 2026-06-17 Updated daily after market close

quality needs a look, premium valuation, no active signal today.

This page refreshes daily after the close. Add 誠美材 to your watchlist to track signal changes on your next visit.
Valuation 23Quality 11Growth 22Momentum 78Chips 16

Is 誠美材 a buy? Fundamentals and valuation first

  • Weak profitability.Operating margin is in the 11th market percentile. Latest quarterly ROE ≈ -2.1%.

  • Valuation is high.PE is in the 85th market percentile; within its own history, PE is around the 99th percentile.

  • Foreign investors are net selling.Foreign 20-day net flow ≈ -3.2% of volume (net sell).

Chip flow

Bearish -0.61
BearishNeutralBullish

Distribution to retail — bearish

  • Distribution to retail — bearish
  • 中國信託-中壢 holds 4,934 lots
  • sellers have 5,972 lots left, ~162 sessions to clear

Window from 2026-01-17 · Price +107% · branches to 2026-06-17· TDCC to 2026-06-12

  • Largest holder 中國信託-中壢 has accumulated 4,934 lots since the start (sold 0%), holding.
  • Main distributor 富邦證券 peaked at 5,749 lots, has sold 74%, 1,487 left, paused recently.
  • TDCC big holders (absolute) >1000-lot holders -4.45pp, mid holders -25, retail +5.30pp — drifting down to retail.
  • Foreign hedge-desk net short Net short -4,191 lots (inferred from branch profile, mostly hedging — not necessarily bearish, not case-confirmed).
Branch inventory reconstruction
Accumulating holders Branches that accumulated shares during the window and still hold positive inventory; they are the absorbing side.
Distributing sellers Branches that built inventory earlier and have been selling it down; the remaining number estimates what has not cleared.
Net-short desks Trading-desk branches with negative inventory or net selling, often hedge, offsetting, or short-term flow. It is not automatically a bearish view.
Accumulating
中國信託-中壢華南永昌-小港國泰-敦南合庫證券中國信託永豐金-萬盛
Distributing
富邦證券凱基-台北國票-安和新光港商野村新加坡商瑞銀
Desks
own scale
兆豐-大同台新-大昌元大證券中國信託-永康
Price Accumulating & Distributing share one scale (comparable); Desks is independent. Zero is the baseline
Branch details Unit: lots

Accumulating

  • 中國信託-中壢 +4,934
    sold 0%
  • 華南永昌-小港 +3,974
    sold 0%
  • 國泰-敦南 +3,256
    sold 3%· still adding
  • 合庫證券 +3,139
    sold 0%
  • 中國信託 +1,749
    sold 14%· still adding
  • 永豐金-萬盛 +1,684
    sold 0%· still adding

Distributing

  • 富邦證券 1,487 left
    sold 74%· paused recently
  • 凱基-台北 1,494 left
    sold 71%· paused recently
  • 國票-安和 2,021 left
    sold 61%· paused recently
  • 新光 559 left
    sold 84%· ~50 sessions to clear
  • 港商野村 1,458 left
    sold 43%· ~28 sessions to clear
  • 新加坡商瑞銀 358 left
    sold 83%· paused recently

Desks

  • 兆豐-大同 -12,133
    unclassified
  • 台新-大昌 -4,012
    unclassified
  • 元大證券 -3,728
    unclassified
  • 中國信託-永康 -3,456
    unclassified
Still selling 5,972 lots ~162 sessions to bottom at most
Recent buy/sell force +2,482 absorbed / -2,655 sold sellers slightly ahead
Hedge-desk net short -4,191 lots potential cover-buying, not selling pressure
TDCC big holders · absolute-holding cross-check
>1000-lot holder share Retail (<400 lots) share Price (right axis)

Weak direction: big-holder share fell while retail share rose.

Describes chip flow, not investment advice. Branch data discloses only high-volume branches with ~1-day lag; TDCC is weekly. Inventory is a relative reconstruction from the window start, not absolute holdings.

Historical evidence

Valuation regime and subsequent returns

Each day's PE is converted to its own-history percentile (as of that day), then we look at adjusted-close returns over the next 240 trading days by valuation regime.

PE percentile bandSample days240-day avg returnMedianWin rateAvg excess (vs index)
0-20 171-37.9% -39.4% 0% -156.4%
20-40 88-35.3% -36.6% 0% -62.1%
40-60 89-33.8% -33.9% 2.2% -36.3%
60-80 148-6.6% -15% 33.1% -27.2%
80-100 You are here242-7.7% -7.2% 18.6% -45.2%

Percentiles use an expanding own-history window (no look-ahead); forward return is 240 trading days on adjusted close. Sample days overlap; distribution is indicative only.

Current PE ≈ 46.92, at the 99.2th percentile of its own history (80-100 band).

Valuation × momentum historical grid

Every day in its own history is bucketed by valuation tercile (own-history PE) and 60-day momentum sign into six cells; we show adjusted-close returns over the next 120 trading days per cell.

Valuation
Momentum
Cheap (own-history bottom 1/3)
Mid
Expensive (own-history top 1/3)
60-day momentum up
-29.8%
Win rate 0% Excess -41.6%
62d
-26.2%
Win rate 5.7% Excess -20.4%
87d
Now
-1.9%
Win rate 49.7% Excess -8.2%
145d
60-day momentum down
-13.9%
Win rate 20.5% Excess -31.4%
166d
-3.5%
Win rate 45.5% Excess -14.4%
88d
-2.9%
Win rate 49.7% Excess -43.2%
310d

Currently in “Expensive (own-history top 1/3) × 60-day momentum up”: across 145 historical days, 120-day forward avg declined 1.9%, win rate 49.7%, lagged the market by 8.2%.

Days = trading days in this bucket; returns use adjusted prices, ex-costs. 60-day momentum: direction of this stock's price over the past 60 trading days.

Signals not active (historical stats for reference)

These are not occurring now; historical samples shown for comparison.

252-day price high (breakout)

Pending

Adjusted close makes a new 252-day high; repeats within 20 days counted once.

18 times historically; 60-day forward avg -3.5%, win rate 16.7%, beating the market by -11.88 pts on average.

Monthly revenue YoY ≥ 20% (from filing deadline)

Pending

Monthly revenue YoY ≥ 20%; event date is the first trading day after the filing deadline (no look-ahead).

36 times historically; 60-day forward avg +7.5%, win rate 60%, beating the market by +5.42 pts on average.

Foreign net buying for 5 straight days

Pending

Foreign net flow (ex-dealer) positive for 5 straight days; event on day 5; repeats within 20 days counted once.

59 times historically; 60-day forward avg +4.6%, win rate 48.3%, beating the market by -0.41 pts on average.

What does 誠美材 do? Company profile

光電業 台灣證券交易所上市

Overview

4960 為台灣證券交易所上市普通股,證券簡稱誠美材。公司全名誠美材料科技股份有限公司,英文全名 CHENG MEI MATERIALS TECHNOLOGY CORPORATION,前身與偏光板產業淵源深,2005/05/17 成立於台灣,2011/10/24 上市,總部位於台南市善化區木柵港西路13號。公司官網揭露主要業務為偏光板,董事長為宋妍儀;總經理欄位於公司官網顯示尚待董事會委任。實收資本額為新台幣5,717,053,880元,已發行普通股約571,705,388股。113年度年報揭露截至114/03/31員工合計約1,109人,112年與113年分別約1,099人、1,160人。主要股東依113年度年報停止過戶日114/03/29資料包含群創光電48,617,638股、持股8.50%,元大證券受託保管六福基金全球機會組合投資專戶24,239,000股、4.24%,永徽投資23,147,000股、4.05%,熙和投資23,069,000股、4.04%,以及其他投資專戶與法人/個人股東;無單一股東達10%以上。公司在台灣有四條偏光板前段生產線,並透過100%海外子公司寧波誠美材料科技有限公司配置後段廠。

Business

誠美材核心產品為偏光板,偏光板用於液晶面板製程,上下各需一片偏光板,使光源於電場/無電場狀態下產生明暗變化以顯示字幕或圖案。公司商業模式為向上游採購PVA、TAC、COP、PET、離型膜、保護膜、補償膜、PSA感壓膠、表面處理膜等光學材料,透過前段捲對捲延伸、染色、貼合製程與後段裁切、磨邊、檢查包裝後,供應面板廠與顯示應用客戶。銷售應用涵蓋液晶電視、桌上型顯示器、筆記型電腦、行動裝置、車用與公共顯示器、工控、OLED、AR/VR、防窺顯示器、節能顯示器等。113年度營收新台幣89.27億元,較112年度92.38億元下降3.4%;毛利率4.97%,但營業淨損仍為5.69億元、稅後淨損2.67億元。113年度銷售地區為內銷約24.98%、亞洲外銷約75.02%。年報揭露截至113年底電視產品比重已降至40%,高值化產品營收占比成長至20%,車載、工控、護眼產品推廣較112年有明顯成效。2025年第2季公司於法說會表示產品組合持續優化,電視約30-35%,Monitor與Notebook約45-50%,車載約6-7%,車載成長率約20-30%;2025年上半年合併營收約42.31億元,年減3%,稅後淨損約9.81億元,每股虧損1.72元,主要受新台幣強升、匯率與存貨/材料因素影響。公司正在由偏光板單一核心逐步延伸至光學膜材、膠材與半導體封裝材料,包括切割膠帶、研磨膠帶、UV解黏膠、封裝應用膜材與先進封裝材料。

Outlook 2025–2028

2025-2028展望可分為偏光板本業優化與半導體材料轉型兩條主線。偏光板方面,公司2025年仍以提升高質化產品占比、優化產品組合、降低低毛利電視標準品比重為主,聚焦車載、OLED、IT高值化、防窺、AR/VR、節能與工控應用;2025年下半年公司對電視面板因提前拉貨與庫存去化轉趨保守,但資訊電子面板需求相對穩定,對下半年採審慎樂觀看法。中長期看,偏光板產業仍受中國大陸產能擴張、標準品供過於求、客戶議價壓力與原材料寡占影響;日韓廠商退出標準品、轉向高值化,台廠須靠車載、OLED、差異化規格與良率/成本改善維持毛利。公司113年度年報與2026年法說資訊顯示,2026-2027將是投資轉型期,短期營收可能受不具競爭力產品退場與產線調整影響,但管理層期待毛利率隨產品組合調整改善。半導體材料方面,公司已投入封裝應用膜材數年,2026年第1季製程膠帶已小量出貨並打入封測廠體系;2026年董事會追加18.7億元資本支出,追加後2026-2028資本支出約22.4億元,並規劃12.5億元現金增資支應半導體事業。投資重點為封裝應用膜材與先進封裝材料,包含半導體級無塵室、研發與生產設備,預計2027年第4季投產、2028年量產。產業動能來自AI、HPC、高速通訊推動先進封裝需求,Yole等研究估計全球先進封裝市場由2024年約460億美元成長至2030年約794億美元、CAGR約9.5%;台灣封測產能占全球高,但高階材料仍高度仰賴進口,若誠美材認證成功,有機會切入在地化供應鏈。主要風險為:2026-2028資本支出與現增造成資金壓力與稀釋;半導體材料客戶認證期長且良率/可靠度門檻高;偏光板本業仍虧損且受匯率、材料價格、面板景氣、關稅與終端庫存波動影響;中國競爭者擴產與併購造成標準品價格壓力;上游關鍵膜材多由日系與海外供應商掌握,進口與供應集中風險仍高。

Supply Chain

Upstream
  • FUJIFILM 日本上市/海外供應商;年報列為TAC、補償膜、表面處理相關材料供應來源之一。
  • DNP/Dai Nippon Printing 日本上市/海外供應商;年報列為降低反射、抗眩光與視覺效能相關材料供應商之一。
  • Toppan 日本上市/海外供應商;年報列為表面處理/視覺效能相關材料供應來源之一。
  • Kuraray 日本上市/海外供應商;年報列為PVA聚乙烯醇膜供應商之一,PVA為偏光機制核心材料。
  • Mitsubishi Chemical 日本上市/海外供應商;年報列為PVA、離型膜、PSA等材料供應來源之一。
  • Toray 日本上市/海外供應商;年報列為離型膜等材料供應來源之一。
  • 南亞塑膠 1303 台股上市公司;年報列為離型膜供應來源之一。
  • 達輝-KY 5276 台股上市公司;年報列為補償膜、TAC/COP相關材料供應來源之一。
  • 明基材 8215 台股上市公司;年報列為PSA感壓膠等材料供應來源之一,同時也是偏光板產業競爭者。
  • TOYOBO 日本上市/海外供應商;年報列為PET材料供應商,PET可取代TAC作為PVA保護層並提供阻水功能。
  • Zeon 日本上市/海外供應商;年報列為COP/補償膜相關材料供應來源之一。
  • 長春 台灣未上市集團;年報列為PVA供應來源之一。
Downstream
  • 群創光電 3481 台股上市面板廠,亦為誠美材主要股東;偏光板產業下游為電視、IT、車載等面板廠,但年報對2023-2024主要銷貨客戶以客戶A/B/C/D等代號揭露,未確認其是否為當期主要客戶。
  • 友達光電 2409 台股上市面板廠;屬車載、工控、IT與顯示面板下游潛在應用鏈,年報未具名揭露實際客戶。
  • 瀚宇彩晶 6116 台股上市面板廠;屬中小尺寸與顯示面板下游潛在應用鏈,年報未具名揭露實際客戶。
  • 京東方 BOE 中國上市面板廠,非台股;年報市場分析列為中國車載面板重要供應商與產業需求來源之一,是否為誠美材客戶未揭露。
  • TCL華星 中國面板廠,非台股;年報市場分析列為中國主要面板廠與產能利用率觀察對象,是否為誠美材客戶未揭露。
  • 惠科 HKC 中國未上市/非台股面板廠;年報市場分析列為中國主要面板廠與產能利用率觀察對象,是否為誠美材客戶未揭露。
  • 封測廠客戶 半導體封裝材料下游;公司2026年法說表示封裝應用膜材已於2026年第1季打入封測廠體系並小量出貨,但未揭露客戶名稱。

Competitors

  • 明基材 8215 台股上市公司,台灣偏光板與光學材料同業;年報亦提及明基材轉型醫療事業、提高較高獲利產品比重。
  • 力特光電 3051 台股上市公司,偏光板/光電材料相關同業,可作為台股偏光板產業比較對象。
  • 杉金光電/杉杉股份體系 中國上市集團旗下偏光板競爭者,非台股;年報指出杉杉股份收購LG化學偏光片業務,中國偏光板產能已居全球重要地位。
  • 住友化學 日本上市公司,非台股;全球主要偏光板廠之一,年報列為全球前五大偏光板廠之一。
  • 日東電工 日本上市公司,非台股;全球主要偏光板與功能材料供應商,年報列為全球前五大偏光板廠之一。
  • 恒美光電 中國偏光板廠,非台股;年報提及其與中國產業基金諾延資本收購三星SDI偏光片資產。
  • Samsung SDI 韓國上市公司,非台股;年報列為全球前五大偏光板廠之一,並提及其偏光片資產出售給恒美光電等。
  • 三利譜 中國上市偏光片廠,非台股;年報提及其收購住友集團中國部分LCD偏光片業務,為中國競爭者之一。
Sources(9)

This company profile is compiled from public sources (annual reports, filings, news and analyst reports), not finlab backtest data; the 2025–2028 outlook contains forward-looking estimates and is for reference only.

Method and limitations

  • All returns use adjusted close (etl:adj_close), already adjusted for dividends and splits.
  • Excess return is measured against the TAIEX total-return index (dividends included).
  • Valuation regime and percentile stats use an expanding own-history window (no future data).
  • Revenue-signal event dates align to the first trading day after the filing deadline, avoiding look-ahead.
  • Event samples may overlap in time; stats describe historical distribution only and are less reliable when samples are few.

This page is historical statistics for educational purposes and is not investment advice. Investing involves risk; past performance does not indicate future results. Assess and bear the risk yourself before trading.