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5285

界霖 Semiconductor As of 2026-06-17 Updated daily after market close

steady quality, fair valuation.

1 active signal
Foreign buy
This page refreshes daily after the close. Add 界霖 to your watchlist to track signal changes on your next visit.
Valuation 34Quality 67Growth 63Momentum 89Chips 66

Is 界霖 a buy? Fundamentals and valuation first

  • Above-average profitability.Operating margin is in the 62th market percentile. Latest quarterly ROE ≈ 3.4%.

  • Valuation is neutral.PE is in the 72th market percentile; within its own history, PE is around the 95th percentile.

  • Foreign investors are net buying.Foreign 20-day net flow ≈ 2.6% of volume (net buy).

  • Signals are active now.On the latest data, signals such as Foreign net buying 5 straight days are active — see the historical forward returns after each occurrence below.

Chip flow

Neutral +0.01
BearishNeutralBullish

Institutional rotation, concentration steady — neutral

  • Institutional rotation, concentration steady — neutral
  • 台灣摩根士丹利 holds 1,542 lots
  • sellers have 563 lots left, ~100 sessions to clear

Window from 2026-01-17 · Price +75% · branches to 2026-06-17· TDCC to 2026-06-12

  • Largest holder 台灣摩根士丹利 has accumulated 1,542 lots since the start (sold 18%), still adding.
  • Main distributor 美林 peaked at 473 lots, has sold 62%, 178 left, paused recently.
  • TDCC big holders (absolute) >1000-lot holders -2.82pp, mid holders +6, retail -1.08pp — little change.
  • Foreign hedge-desk net short Net short -259 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
台灣摩根士丹利新加坡商瑞銀美商高盛摩根大通台新-安南永豐金-匯立
Distributing
美林台新國泰-敦南凱基-三重元大-南勢角華南永昌
Desks
own scale
新光富邦-岡山土銀-建國中國信託
Price Accumulating & Distributing share one scale (comparable); Desks is independent. Zero is the baseline
Branch details Unit: lots

Accumulating

  • 台灣摩根士丹利 +1,542
    sold 18%· still adding
  • 新加坡商瑞銀 +1,389
    sold 0%· still adding
  • 美商高盛 +1,072
    sold 0%· still adding
  • 摩根大通 +750
    sold 0%· still adding
  • 台新-安南 +522
    sold 0%· still adding
  • 永豐金-匯立 +317
    sold 0%

Distributing

  • 美林 178 left
    sold 62%· paused recently
  • 台新 183 left
    sold 36%· ~18 sessions to clear
  • 國泰-敦南 68 left
    sold 70%· ~4 sessions to clear
  • 凱基-三重 97 left
    sold 57%· paused recently
  • 元大-南勢角 29 left
    sold 86%· ~5 sessions to clear
  • 華南永昌 21 left
    sold 89%· paused recently

Desks

  • 新光 -2,669
    unclassified
  • 富邦-岡山 -967
    unclassified
  • 土銀-建國 -248
    unclassified
  • 中國信託 -248
    unclassified
Still selling 563 lots ~100 sessions to bottom at most
Recent buy/sell force +5,331 absorbed / -603 sold buyers slightly ahead
TDCC big holders · absolute-holding cross-check
>1000-lot holder share Retail (<400 lots) share Price (right axis)

Mixed direction: big-holder and retail changes are not aligned.

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

Signals active now

These signals are true on the latest data, with this stock's own historical forward-return stats after each occurrence.

Foreign net buying for 5 straight days

Active · now 8%

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

51 historical occurrences (since 2014-03-28)
Average forward return after Foreign net buying for 5 straight days。20-day: Win 42%, Sample 50, Median -0.58%, Excess +0.52%, Beat mkt rate 36%；60-day: Win 60.4%, Sample 48, Median +1.25%, Excess +1.3%, Beat mkt rate 43.8%；120-day: Win 48.9%, Sample 47, Median -2.82%, Excess +1.51%, Beat mkt rate 34%

120 days after: historical avg +11.43%

20-day +2.45%
60-day +5.96%
120-day +11.43%
20-day
60-day
120-day
Win
42%
60.4%
48.9%
Sample
50
48
47
Median
-0.58%
+1.25%
-2.82%
Excess
+0.52%
+1.3%
+1.51%
Beat mkt rate
36%
43.8%
34%

Over 47 occurrences, 120-day forward avg gained 11.43%, beat the market by 1.51 pts; win rate 48.9%.

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)
0-20 183+9.8% +11% 55.2% -16.5%
20-40 167-8.1% -13.7% 25.1% -28.3%
40-60 460-2.6% -16.2% 20.4% -23.4%
60-80 434+11.2% -4.6% 42.2% -10%
80-100 You are here772+25.5% -8.5% 46% +9.5%

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 ≈ 42.86, at the 95.3th 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
Insufficient data
(29d)
+10.4%
Win rate 40% Excess +2.1%
250d
Now
+21%
Win rate 58.3% Excess +8.7%
789d
60-day momentum down
+4.1%
Win rate 44.3% Excess -7.7%
228d
-6.1%
Win rate 32.4% Excess -10.5%
441d
-0.1%
Win rate 35.8% Excess -12%
399d

Currently in “Expensive (own-history top 1/3) × 60-day momentum up”: across 789 historical days, 120-day forward avg gained 21%, win rate 58.3%, beat the market by 8.7%.

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.

14 times historically; 60-day forward avg +9.06%, win rate 61.5%, beating the market by +3.99 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).

35 times historically; 60-day forward avg +11.43%, win rate 59.3%, beating the market by +8.51 pts on average.

What does 界霖 do? Company profile

半導體業；功率半導體導線架、封裝材料 台灣證券交易所上市

Overview

5285 對應證券為界霖科技股份有限公司之上市普通股，非 ETF/ETN/權證等非營運證券。公司成立於 2000/10/18，總部位於高雄市楠梓區中央路58號，2014/02/25 於台灣證券交易所掛牌上市。董事長為蔡上元，總經理為蔡上民。實收資本額約新台幣1,020,409,260元，已發行普通股102,040,926股。依113年年報，截至年報刊印日附近集團從業員工約1,093至1,139人區間，年報表列民國113年度員工總數1,093人、民國112年度1,106人、截至刊印日1,139人。主要股東依民國114年4月27日年報揭露包含蔡上元9.89%、蔡上民8.70%、界龍工業4.82%、李長生4.63%、秀芳國際投資4.16%、林素珍3.36%、冠慶投資2.94%、蔡孟位2.49%、吳秋菊2.27%、宏修國際投資1.88%。公司在高雄楠梓、中國濟南/蘇州、日本米澤、馬來西亞芙蓉等地有營運或生產據點；2017年向住友金屬礦山相關事業購入日本住立、蘇州住立、馬來西亞住立等功率元件導線架據點，擴大國際布局。

Business

界霖主要從事半導體封裝材料及各式功率導線架之研發、製造與銷售，核心產品為二極體、功率電晶體等功率元件用導線架，製程涵蓋精密模具設計、金屬沖壓、電鍍/表面處理與檢測，主打客製化與從沖壓至電鍍的一貫作業。產品線包含TO導線架、其他分離式元件、功率模組導線架、橋式整流器導線架、Clip/搭接元件架、智能電源模組與部分IC導線架等。民國113年度產品營收結構：TO導線架新台幣1,489,958仟元、占29.64%；其他分離式元件1,346,853仟元、占26.79%；模組684,286仟元、占13.61%；其他1,505,754仟元、占29.96%；合計5,026,851仟元。終端應用涵蓋節能電子、手機/行動裝置、PC、消費性電子、新能源車、工業變頻、資料中心電源管理、航太衛星等。商業模式以依客戶規格共同開發及量產導線架為主，下游客戶為國際半導體IDM大廠與封裝代工廠；MoneyDJ報導列舉客戶群涵蓋Infineon、ON Semiconductor、Vishay等國際IDM大廠以及封測代工廠。公司年報表示最近兩年度無單一銷貨客戶占銷貨10%以上，銷貨集中風險相對有限。

Outlook 2025–2028

2025至2028年展望以車用功率半導體、AI伺服器電源、工控與高階功率模組為主要成長軸。2025年6月法說資料顯示，2025年第1季合併營收新台幣1,335,411仟元，年增13%，營業利益年增28%，公司持續強調區域供應鏈布局、局部電鍍、表面粗化、異型材、材料開發、功率模組Clip等技術。2026年5月MoneyDJ報導指出，2026年4月營收5.82億元創單月新高，法人估計5、6月營收仍有機會維持5億元以上，受惠車用復甦與AI伺服器需求，目前稼動率約70%至75%，全年營收挑戰60億元；同篇報導指出車用相關約占營收五成，其次為工控與消費，2025年AI相關產品占營收約5%至7%，法人估2027年有機會挑戰超過一成。中長期動能包括電動車/油電車功率元件用量提升、再生能源與工業變頻、資料中心48V/HVDC與高功率電源架構、GaN/SiC等寬能隙功率元件封裝需求，以及客戶要求非中或多地供應鏈造成台灣、日本、馬來西亞產能價值提升。公司年報亦揭露馬來西亞廠區閒置土地規劃廠房擴充與後續設備投資，尚處土地先期整備與申請階段。主要風險為銅材、鐵鎳合金、銀鹽/鍍液等原物料價格波動；美元匯率波動；中國供應商競爭與在地採購政策；車用及工業景氣循環；AI伺服器新品放量與客戶認證時程不確定；高階產品良率與產能利用率；以及2028年展望屬產業趨勢推估，非公司正式財測。

Supply Chain

Upstream
  • 銅材供應商（韓國、日本、台灣、歐洲、中國大陸；年報未揭露個別公司名） 界霖導線架主要原料為銅材，包含平板材與異型材；年報揭露主要供應來源為韓國、日本、台灣、歐洲、中國大陸，且部分供應商因契約未揭露名稱，以甲、乙、丙、丁公司代稱。
  • 鐵材與鐵鎳合金供應商（日本、台灣、中國大陸；年報未揭露個別公司名） 用於功率導線架之金屬基材；年報說明供應狀況穩定，且公司透過多供應商與自製異型材降低集中風險。
  • 鎳珠、氰化銀、氰化銀鉀與化學鍍液供應商（台灣、中國大陸；年報未揭露個別公司名） 用於電鍍與表面處理製程；年報列為主要原料之一，供應狀況穩定。
  • 沖壓、電鍍、檢測與模具設備供應商（未揭露個別公司名） 支援精密沖壓、連續電鍍、模具製造、自動化檢測與高階功率導線架量產；公司揭露持續投資模具、沖壓、電鍍及檢測設備，但未揭露主要設備商。
Downstream
  • Infineon Technologies AG（英飛凌） MoneyDJ報導列為界霖客戶群之一；德國上市國際IDM大廠，應用於功率半導體與車用/工控/電源管理等。
  • ON Semiconductor Corp.（安森美） MoneyDJ報導列為界霖客戶群之一；美國上市國際IDM大廠，應用於功率元件、車用與工業控制等。
  • Vishay Intertechnology, Inc.（威世） MoneyDJ報導列為界霖客戶群之一；美國上市分離式元件/被動元件大廠。
  • 國際半導體IDM大廠與大型封裝代工廠（年報未逐一揭露） 年報表示主要客戶為國際IDM與大型封裝代工廠，銷售客製化功率元件導線架，最近兩年度無單一客戶銷貨占比超過10%。
  • 新能源車、工業變頻、資料中心電源管理、航太衛星與消費電子終端應用鏈 界霖產品作為封裝材料，間接進入車用功率模組、AI伺服器/資料中心電源、工控與消費電子等終端市場；多為終端應用領域而非單一掛牌客戶。

Competitors

  • 順德工業 2351 台股上市公司，功率導線架與電子材料相關，為界霖在功率導線架領域的重要台灣同業。
  • 長科* 6548 台股上櫃公司，導線架、QFN/IC導線架與封裝材料相關，屬台灣導線架主要同業。
  • 長華* 8070 台股上市公司，半導體材料通路與導線架/封裝材料相關投資布局，常被市場歸類為導線架概念同業。
  • 一詮精密 2486 台股上市公司，LED、SMD與光電/IC導線架相關，產品應用與界霖部分重疊但主力結構不同。
  • 三井高科技（Mitsui High-tec） 日本上市公司，全球導線架主要競爭者之一，非台股掛牌。
  • 新光電氣工業（Shinko Electric Industries） 日本上市/半導體封裝材料大廠，全球導線架與封裝材料競爭者，非台股掛牌。
  • ASMPT / Advanced Assembly Materials International 香港上市ASMPT體系與其封裝材料業務為全球導線架市場主要競爭者之一，非台股掛牌。
  • HAESUNG DS（海成DS） 韓國上市公司，導線架與封裝基板供應商，非台股掛牌。
Sources（11）

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.