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Help me set up FinLab and analyze 6191 精成科. Please read: https://finlab.finance/en/setup?stock=6191

6191

精成科 Electronic Components 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 精成科 to your watchlist to track signal changes on your next visit.
Valuation 61Quality 62Growth 29Momentum 57Chips 64

Is 精成科 a buy? Fundamentals and valuation first

  • Above-average profitability.Operating margin is in the 56th market percentile. Latest quarterly ROE ≈ 3.0%.

  • Valuation is neutral.PE is in the 28th market percentile; within its own history, PE is around the 80th percentile.

  • Foreign investors are net buying.Foreign 20-day net flow ≈ 2.4% of volume (net buy).

Chip flow

Bearish -0.45
BearishNeutralBullish

Distribution to retail — bearish

  • Distribution to retail — bearish
  • 元大-館前 holds 2,070 lots
  • sellers have 2,133 lots left, ~79 sessions to clear

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

  • Largest holder 元大-館前 has accumulated 2,070 lots since the start (sold 17%), now trimming.
  • Main distributor 元大-大同 peaked at 1,180 lots, has sold 31%, 818 left, ~79 sessions to clear at the recent pace.
  • TDCC big holders (absolute) >1000-lot holders -5.04pp, mid holders -21, retail +6.31pp — drifting down to retail.
  • Foreign hedge-desk net short Net short -14,892 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
元大-館前國票-中港元大-和平富邦-竹科玉山-桃園國泰-館前
Distributing
元大-大同國票-台中國泰-敦南港商野村國票-敦北法人美好
Desks
own scale
凱基-台北美商高盛富邦證券摩根大通
Price Accumulating & Distributing share one scale (comparable); Desks is independent. Zero is the baseline
Branch details Unit: lots

Accumulating

  • 元大-館前 +2,070
    sold 17%
  • 國票-中港 +639
    sold 0%
  • 元大-和平 +581
    sold 5%· still adding
  • 富邦-竹科 +560
    sold 0%· still adding
  • 玉山-桃園 +519
    sold 8%· still adding
  • 國泰-館前 +344
    sold 12%· still adding

Distributing

  • 元大-大同 818 left
    sold 31%· ~79 sessions to clear
  • 國票-台中 304 left
    sold 66%· paused recently
  • 國泰-敦南 534 left
    sold 31%· ~59 sessions to clear
  • 港商野村 71 left
    sold 88%· paused recently
  • 國票-敦北法人 76 left
    sold 87%· paused recently
  • 美好 189 left
    sold 50%· ~73 sessions to clear

Desks

  • 凱基-台北 -3,283
    day-trade · selling pressure
  • 美商高盛 -3,016
    hedge desk · will cover
  • 富邦證券 -2,897
    unclassified
  • 摩根大通 -2,534
    hedge desk · will cover
Still selling 2,133 lots ~79 sessions to bottom at most
Recent buy/sell force +2,343 absorbed / -1,047 sold buyers slightly ahead
Hedge-desk net short -11,434 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)
0-20 685+63.8% +62.9% 70.5% +46%
20-40 379+62.6% +54.6% 95.8% +38.1%
40-60 558+17.8% +13.7% 76.3% -0.7%
60-80 368+13.5% +9.1% 73.4% -4.6%
80-100 You are here282+16.7% +12.8% 94.7% -17.3%

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 ≈ 15.58, at the 80.3th 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
+37.6%
Win rate 80.2% Excess +25.7%
495d
+10%
Win rate 61.1% Excess +0.2%
638d
Now
+4.1%
Win rate 46.4% Excess -15.4%
403d
60-day momentum down
+16.1%
Win rate 65.8% Excess +13.2%
442d
+21.7%
Win rate 82.4% Excess +13.8%
284d
+9.5%
Win rate 70.5% Excess -14.4%
129d

Currently in “Expensive (own-history top 1/3) × 60-day momentum up”: across 403 historical days, 120-day forward avg gained 4.1%, win rate 46.4%, lagged the market by 15.4%.

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.

30 times historically; 60-day forward avg +4.93%, win rate 60%, beating the market by +0.29 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).

50 times historically; 60-day forward avg +7.68%, win rate 63.3%, beating the market by -2.17 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.

60 times historically; 60-day forward avg +6.5%, win rate 61.7%, beating the market by +1.92 pts on average.

What does 精成科 do? Company profile

電子零組件業;PCB與電子製造服務EMS 台灣證券交易所上市

Overview

精成科技股份有限公司,英文簡稱GBM,統一編號81069921,成立於1973/02/23,上市日期2007/10/19,登記/通訊資料常見為新北市新店區民權路48-3號4樓;經濟部公司登記資料顯示公司所在地為臺北市信義區松智路1號24樓。董事長為焦佑衡,總經理為陶正國、楊建輝,發言人為楊建輝。臺灣證券交易所個股資料列示實收資本額為新台幣4,993,030,000元,主要經營業務為印刷電路板及組裝、資訊軟體服務業、有線/無線通信機械器材製造等。2024年年報揭露截至2025/04/20主要股東為瀚宇博德股份有限公司持股192,815,499股、40.65%,台北富邦商銀託管復華台灣科技優息ETF專戶3.48%,焦佑衡1.18%,其餘包括摩根大通託管JP摩根證券專戶、安聯台灣大壩基金專戶等。2024年員工合計6,951人,2025/03/31為7,387人。公司於2025/04/08以企業價值日圓421億元、約新台幣93億元全現金取得日本Lincstech Co., Ltd. 100%股權。2026/05/07董事會決議擬以股份轉換方式取得台灣精星科技股份有限公司除既有持股外之股權,換股比例暫定台灣精星每1股換發精成科0.342股,若完成台灣精星將成為100%子公司,基準日暫定2026/10/01;此案截至2026/06/17仍待股東會及主管機關程序。

Business

精成科為PCB與EMS雙主軸營運公司。2024年年報揭露2024年度營收結構為PCB新台幣13,736,029仟元、占63.36%,EMS新台幣7,800,552仟元、占35.98%,其他0.66%;2023年PCB占69.79%、EMS占29.77%。PCB應用涵蓋個人電腦、網卡、儲存設備、網路通訊、消費電子、車載產品如車身控制器、主動安全、影音導航、ADAS、車燈控制、新能源車電池管理系統等。EMS包括開模、注塑、塗裝、SMT貼裝及系統組裝,以基板組裝加工為主,服務個人電腦、儲存設備、通訊、消費電子、車載、電動工具機、儲能、智能生活、工控、醫療保健與光電產品。2024年銷售地區以亞洲為主,占93.28%,美洲5.19%,歐洲1.53%。主要客戶未具名,年報以代號甲揭露2024年銷貨2,311,764仟元、占10.66%,2025年第1季為606,409仟元、占11.74%;公司說明主要銷售客戶未有重大改變。併入Lincstech後,公開新聞與法說整理顯示產品組合增加高層板、AI ASIC加速卡/交換器板、半導體探針卡、醫療與機器人等高階應用,PCB營收占比估計提高至約75%、EMS約25%,AI相關營收比重接近20%;此為公司股東會/市場報導口徑,非2024年年報數字。

Outlook 2025–2028

2025年:核心變化是Lincstech自2025/04/08併入,擴大高層板、半導體探針卡、AI伺服器/交換器/加速卡與醫療機器人等高階產品組合;年報揭露公司短期將加強儲能、AI伺服器、伺服器電源、工控與新能源車用電子客戶開發,並提升高層數、HDI、低損耗/超低損耗材料與高頻高速PCB能力。風險包括銅箔基板、銅、金、錫等材料價格、匯率、關稅/地緣政治與新廠折舊壓力。2026年:法說整理與新聞指出馬來西亞廠AI伺服器相關產品預計2026年第1季開始量產,台灣桃科廠預計2026年第1至第2季陸續開出產能,下半年產能利用率提升;台灣精星若完成股份轉換,將強化車用電子、BMS、ADAS、工控與EMS能力,但此案截至2026/06/17仍具程序不確定性。2027年:法說整理提到公司已提前為2027年需求布建產能,市場焦點在AI伺服器、800G/1.6T交換器、加速卡、探針卡與高階PCB需求能否持續放量。2028年:目前未查得公司對2028年的明確量化財測或產能指引;可合理追蹤的中長期方向為AI資料中心、高速網通、車用電子、工控/儲能、醫療設備與高階半導體測試應用,但需求循環、價格競爭、產能利用率、海外擴產執行、併購整合與匯率仍是主要挑戰。

Supply Chain

Upstream
  • 台光電子材料 2383 PCB上游銅箔基板/高頻高速材料代表性台股供應商;精成科年報僅揭露主要原物料向一線大廠採購且無單一供應商占進貨10%以上,未確認其為直接供應商。
  • 聯茂電子 6213 PCB上游銅箔基板與樹脂材料代表性台股公司;列為產業上游關係企業,非年報具名直接供應商。
  • 台燿科技 6274 高頻高速銅箔基板/PCB材料供應鏈代表性台股公司;列為產業上游關係企業,非年報具名直接供應商。
  • 金居開發 8358 電解銅箔為PCB主要導電材料之一,金居為台股銅箔廠;列為產業上游關係企業,非年報具名直接供應商。
  • 南亞塑膠 1303 PCB上游樹脂、玻纖布/銅箔基板相關材料代表性台股公司;列為產業上游關係企業,非年報具名直接供應商。
  • 台灣玻璃 1802 玻纖布/玻璃纖維為PCB補強材料上游;列為產業上游關係企業,非年報具名直接供應商。
Downstream
  • 未具名主要客戶甲 年報以代號揭露,2024年占銷貨淨額10.66%,2025年第1季占11.74%;因契約或揭露規範未列真實名稱,無法判定是否上市櫃。
  • 台灣精星科技 8183 精成科持股之EMS/PCBA關係企業,2026年擬以股份轉換取得100%股權;其聚焦車用電子、新能源車BMS、MCU、ADAS與重型機械控制模組等,有助精成科下游車用與工控布局。
  • 個人電腦與伺服器品牌/系統客戶 PCB與EMS下游應用客戶類型,涵蓋PC/NB、AI伺服器、伺服器電源、加速卡與高速交換器;公司未完整揭露具名客戶。
  • 車用電子與新能源車客戶 下游應用包含車身控制器、主動安全、影音導航、ADAS、車燈控制與電池管理系統;公司未完整揭露具名客戶。
  • 半導體測試與醫療/機器人客戶 併入Lincstech後新增或強化探針卡、醫療與機器人等高階應用;具名客戶未揭露。

Competitors

  • 健鼎科技 3044 年報列為台灣PCB競爭對象。
  • 志超科技 8213 年報列為台灣PCB競爭對象。
  • 華通電腦 2313 年報列為台灣PCB競爭對象。
  • 臻鼎-KY 4958 年報與產業資料列為PCB競爭對手。
  • 敬鵬工業 2355 年報列為台灣PCB競爭對象,主要具車用PCB布局。
  • 鴻海精密 2317 年報列為基板組裝加工/EMS規模較大的競爭對象。
  • 和碩聯合科技 4938 年報列為基板組裝加工/EMS規模較大的競爭對象。
  • 緯創資通 3231 年報列為基板組裝加工/EMS規模較大的競爭對象。
  • 楠梓電 2316 MoneyDJ產業資料列為PCB競爭同業;台股上市公司。
  • 東山精密 中國A股上市PCB/電子製造競爭者,非台股上市櫃。
  • TTM Technologies 美國上市PCB製造商,非台股上市櫃。
  • Nippon Mektron 日本PCB/FPC競爭者,非台股上市櫃。
  • AT&S 奧地利上市高階PCB/IC載板廠,非台股上市櫃。
  • IBIDEN 日本上市PCB/IC載板競爭者,非台股上市櫃。
Sources(13)

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.