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5493

三聯 Other Electronics As of 2026-06-17 Updated daily after market close

steady quality, fair valuation, no active signal today.

This page refreshes daily after the close. Add 三聯 to your watchlist to track signal changes on your next visit.
Valuation 52Quality 67Growth 63Momentum 59Chips 72

Is 三聯 a buy? Fundamentals and valuation first

  • Above-average profitability.Operating margin is in the 56th market percentile. Latest quarterly ROE ≈ 4.0%.

  • Valuation is neutral.PE is in the 49th market percentile; within its own history, PE is around the 96th percentile.

  • Foreign investors are net buying.Foreign 20-day net flow ≈ 3.7% of volume (net buy).

Chip flow

Bearish -0.18
BearishNeutralBullish

Distribution to retail — bearish

  • Distribution to retail — bearish
  • 華南永昌-基隆 holds 258 lots
  • sellers have 146 lots left, ~22 sessions to clear

Window from 2026-01-17 · Price -2% · branches to 2026-06-17· TDCC to 2026-06-12

  • Largest holder 華南永昌-基隆 has accumulated 258 lots since the start (sold 0%), still adding.
  • Main distributor 玉山-雙和 peaked at 125 lots, has sold 66%, 43 left, paused recently.
  • TDCC big holders (absolute) >1000-lot holders -1.27pp, mid holders +0, retail +1.80pp — drifting down to retail.
  • Foreign hedge-desk net short Net short -501 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
華南永昌-基隆兆豐-寶成兆豐-民生凱基-北門兆豐-公益合庫-鳳山
Distributing
玉山-雙和台灣摩根士丹利玉山-台南港商野村國泰證券元大-發財
Desks
own scale
台新-高雄凱基-台北兆豐-忠孝美林
Price Accumulating & Distributing share one scale (comparable); Desks is independent. Zero is the baseline
Branch details Unit: lots

Accumulating

  • 華南永昌-基隆 +258
    sold 0%· still adding
  • 兆豐-寶成 +93
    sold 0%· still adding
  • 兆豐-民生 +93
    sold 0%
  • 凱基-北門 +84
    sold 0%· still adding
  • 兆豐-公益 +79
    sold 22%
  • 合庫-鳳山 +58
    sold 15%

Distributing

  • 玉山-雙和 43 left
    sold 66%· paused recently
  • 台灣摩根士丹利 66 left
    sold 42%· paused recently
  • 玉山-台南 9 left
    sold 88%· paused recently
  • 港商野村 54 left
    sold 25%· paused recently
  • 國泰證券 7 left
    sold 89%· paused recently
  • 元大-發財 16 left
    sold 75%· ~15 sessions to clear

Desks

  • 台新-高雄 -1,800
    unclassified
  • 凱基-台北 -266
    day-trade · selling pressure
  • 兆豐-忠孝 -133
    unclassified
  • 美林 -122
    hedge desk · will cover
Still selling 146 lots ~22 sessions to bottom at most
Recent buy/sell force +623 absorbed / -127 sold buyers slightly ahead
Hedge-desk net short -232 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)
0-20 187+20.3% +20.1% 100% -0.3%
20-40 542+17.4% +13.8% 91.3% +5.2%
40-60 857+18.2% +9.3% 79.9% +5.3%
60-80 805+21.4% +14.4% 82% +7.3%
80-100 You are here645+18.5% +9.9% 71.6% -8.2%

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 ≈ 21.84, at the 95.8th 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
+10.2%
Win rate 80.4% Excess +5.1%
235d
+10.5%
Win rate 65.3% Excess +5.8%
966d
Now
+9.7%
Win rate 67.3% Excess -0.5%
845d
60-day momentum down
+8.4%
Win rate 100% Excess -4.5%
161d
+5.2%
Win rate 63.4% Excess -2.1%
596d
+16.1%
Win rate 84.6% Excess -1%
344d

Currently in “Expensive (own-history top 1/3) × 60-day momentum up”: across 845 historical days, 120-day forward avg gained 9.7%, win rate 67.3%, lagged the market by 0.5%.

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.

36 times historically; 60-day forward avg +4.35%, win rate 51.4%, beating the market by +2 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).

76 times historically; 60-day forward avg +7.64%, win rate 58.5%, beating the market by +4.34 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.

18 times historically; 60-day forward avg +0.87%, win rate 38.9%, beating the market by -2.43 pts on average.

What does 三聯 do? Company profile

其他電子業 上櫃(櫃買中心)

Overview

三聯科技股份有限公司,股票代號5493,為櫃買中心上櫃普通股,非ETF、ETN或權證。公司成立於1967年2月20日,2001年5月3日上櫃,總部位於台北市大安區復興南路一段390號5樓之3。董事長為林大鈞,2026年6月4日董事會改選後續任;總經理依公開市場資料為林家慶。2025年Q3法說資料揭露資本額新台幣436,893仟元,三聯科技個體員工約91人、合併約320人;2025年前三季合併營收約40.23億元,2024年合併營收約45.04億元。2025年12月累計營收約54.51億元、年增約21.04%,媒體報導2025全年營收創高。股權結構(2025年3月28日)為本國個人65.28%、本國法人33.39%、外資1.33%。主要董監事法人股東包括聯榮投資、瑞鏵投資、財團法人三聯科技教育基金會等。集團重要子公司與關係企業包含多聯科技、吉聯資源開發、振聯科技、Rift Systems Inc.、義大利SIAP+MICROS等;其中多聯科技由三聯與日本多摩化學合資成立,主責電子化學材料。

Business

三聯集團目前主要分為三大事業:一、電子材料事業,2025年前三季營收約36.43億元、占90.56%,年增29.95%,由多聯科技供應半導體與光電產業高純度特用電子化學材料,產品包括TMAH顯影液與清洗液、TEOS等CVD薄膜形成液、CMP研磨液、銅電鍍液與添加劑、TAMAPURE AA超高純度試藥等,商業模式為在地化製造、代理或代工高純度化學品並供應晶圓廠、封裝、面板與材料通路。二、自動化監測事業,2025年前三季營收約2.86億元、占7.10%,產品與服務包括地震預警、振動監測、結構健康監測、地工監測、橋梁與水庫監測、微振動監測、感測器、資料記錄器、雲端監測平台、TAF檢校服務,以及工業量測與自動化元件代理。三、海外感測與設備事業,2025年前三季營收約0.55億元、占1.36%,透過Rift Systems、瑞士分公司、SIAP+MICROS等布局海外環境監測、氣象與地震預警專案。主要終端應用包括先進製程與先進封裝半導體廠、光電面板廠、鐵路與捷運、公路橋梁、水庫水壩、都更深開挖、資料中心、高科技廠房與智慧城市防災。媒體報導其電子材料主要本土客戶前三大貢獻約六至七成業績,並點名台積電、聯電、世界先進、群創、捷時雅、華立新竹、美光、默克先進科技等;此部分屬媒體揭露,非公司逐一公告。

Outlook 2025–2028

2025至2028年主要成長動能可分為半導體材料與智慧監測兩條線。半導體材料方面,AI、高效能運算、3奈米以下先進製程、2奈米量產與CoWoS等先進封裝擴產,帶動CMP研磨液、顯影液、薄膜形成液與高純度化學品需求,公司2025年前三季電子材料占比已逾九成,2025全年營收年增約21%,顯示此業務為短中期獲利主軸;若主要客戶先進製程與封裝資本支出延續,2026至2027上半年仍可能具訂單能見度。監測事業方面,公司2025年取得台鐵強震儀50套更新、阿里山林業鐵路地震預警、世界銀行印尼國家地震預警等案件,並首度參加半導體展,強化高科技廠房微振動、傾斜、結構安全與地震預警設備,策略為以硬體導入帶動雲端平台與軟體服務,將B2B企業市場延伸到商業設施、社區與B2C防災生態系。海外方面,Rift美國子公司、瑞士分公司與義大利SIAP+MICROS可望支撐國際通路與標案。主要風險包括:電子材料營收高度集中於少數大型半導體客戶,若先進製程擴產延後、客戶認證失敗或砍單將衝擊營收;高純度化學品受原物料、匯率、品質事故、環安法規與供應鏈認證影響;監測工程案具標案認列時點與政府預算波動;海外專案存在交付、匯率、政治與收款風險;公司規模相對小,研發、製造與國際通路擴張需持續投入。2027至2028具體財測未見公司公開量化指引,因此上述為依公司法說、媒體報導與產業趨勢之研究推估。

Supply Chain

Upstream
  • 多摩化學工業株式會社(Tama Chemicals) 日本未上市或非台股掛牌公司;多聯科技合資夥伴與高純度化學品技術/產品來源,供應TAMAPURE AA等產品。
  • MLI(Moses Lake Industries) 美國非台股掛牌供應商;三聯法說揭露多聯代理或供應其銅電鍍液及添加劑。
  • KYOWA 日本非台股掛牌量測元件與資料擷取設備供應商;三聯代理應變規、壓力計、扭力計、荷重計、放大器與記錄器等。
  • GRAPHTEC 日本非台股掛牌資料記錄器供應商;供應溫度、溫溼度、高速與高電壓記錄器等。
  • Pro-face 隸屬Schneider Electric體系,非台股掛牌;供應工業電腦與人機介面等自動化產品。
  • Figaro Engineering 日本非台股掛牌感測器供應商;法說列為氣體監測感測器來源。
  • Midori Precisions 日本非台股掛牌感測器供應商;法說列為位移計、電位計等量測元件來源。
  • AEC 非台股掛牌感測器或量測元件供應商;法說列為位移計、加速度計相關品牌。
  • MTI Instruments 美國非台股掛牌精密量測設備供應商;法說列為位移計相關品牌。
  • 台灣高純度化學原料與包材供應商 未逐一揭露;電子材料事業需上游高純度原料、溶劑、桶槽、潔淨包材與物流服務,具品質認證與供應穩定性要求。
Downstream
  • 台灣積體電路製造股份有限公司 2330 台股上市公司;媒體報導三聯/多聯供應其先進製程研磨液與先進封裝特用化學品,屬重要半導體終端客戶線索。
  • 聯華電子股份有限公司 2303 台股上市公司;媒體報導為三聯電子材料主要客戶之一,應用於晶圓製造材料。
  • 世界先進積體電路股份有限公司 5347 台股上櫃公司;媒體報導為電子材料客戶之一。
  • 群創光電股份有限公司 3481 台股上市公司;媒體報導為光電面板材料客戶之一。
  • 友達光電股份有限公司 2409 台股上市公司;未見本次資料直接點名,但多聯產品供應LCD面板廠,友達屬台灣主要面板終端應用公司,列為產業下游客戶類型推估。
  • 華立企業股份有限公司 3010 台股上市公司;媒體提及華立新竹為三聯電子材料相關客戶或通路,屬半導體材料供應鏈通路端。
  • 捷時雅邁科股份有限公司 台灣未上市或非台股掛牌公司;媒體報導為三聯電子材料主要客戶之一。
  • 美光科技 美國上市公司,非台股掛牌;媒體報導其台灣晶圓相關單位為電子材料客戶之一。
  • 默克先進科技 外商在台子公司,非台股掛牌;媒體報導為電子材料相關客戶之一。
  • 台灣鐵路公司 國營鐵路營運機構,非上市櫃;三聯取得地震儀50套與鐵道地震預警相關案件。
  • 台北捷運公司 地方政府持股大眾運輸公司,非上市櫃;三聯法說展示台北捷運地震預警監測系統案例。
  • 公共工程、橋梁、水庫、建築與高科技廠房業主 多為政府機關、工程顧問、營造商、晶圓廠、封測廠與資料中心;採用結構健康監測、地工監測、微振動監測與地震預警系統。

Competitors

  • 崇越科技股份有限公司 5434 台股上櫃公司;半導體材料、設備與通路服務商,與三聯電子材料通路/供應鏈角色部分重疊。
  • 華立企業股份有限公司 3010 台股上市公司;半導體與電子材料通路商,部分材料供應與客戶服務場景具競合關係。
  • 長興材料工業股份有限公司 1717 台股上市公司;電子材料、光電材料與化學材料供應商,與高純度電子材料市場部分重疊。
  • 永光化學工業股份有限公司 1711 台股上市公司;化學品與電子化學材料供應商,屬本土化學材料競爭群。
  • 台灣特品化學股份有限公司 4772 台股上市櫃公司;半導體特用化學品/氣體相關供應商,與先進製程材料在客戶認證與擴產題材上相近。
  • 新應材股份有限公司 4749 台股上市公司;半導體黃光微影相關材料供應商,與先進製程材料國產化趨勢同屬競爭/比較標的。
  • Merck KGaA / 默克集團 德國上市公司,非台股掛牌;全球半導體材料與特用化學品大廠,為電子材料領域重要國際競爭者與客戶/合作方可能性並存。
  • JSR、TOK、信越化學、住友化學等日系材料商 多為日本上市公司但非台股掛牌;在高純度電子化學品、微影與先進製程材料具全球競爭力。
  • Kinemetrics、GeoSIG、Campbell Scientific、Sisgeo、Geokon等監測設備商 多為海外或未上市公司,非台股掛牌;在地震儀、結構健康監測、地工監測與資料擷取系統上與三聯自動化監測事業競爭。
  • 研華股份有限公司 2395 台股上市公司;工業物聯網與自動化平台龍頭,與三聯在工業電腦、IoT資料擷取與監測平台應用上有廣義競爭或合作可能。
Sources(16)

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.