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Help me set up FinLab and analyze 6271 同欣電. Please read: https://finlab.finance/en/setup?stock=6271

6271

同欣電 Semiconductor 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 同欣電 to your watchlist to track signal changes on your next visit.
Valuation 44Quality 59Growth 47Momentum 87Chips 55

Is 同欣電 a buy? Fundamentals and valuation first

  • Above-average profitability.Operating margin is in the 72th market percentile. Latest quarterly ROE ≈ 1.5%.

  • Valuation is neutral.PE is in the 65th market percentile; within its own history, PE is around the 97th percentile.

  • Foreign investors are net buying.Foreign 20-day net flow ≈ 1.1% of volume (net buy).

Chip flow

Bullish +0.72
BearishNeutralBullish

Single-sided accumulation, concentration rising — bullish

  • Single-sided accumulation, concentration rising — bullish
  • 台灣摩根士丹利 holds 8,863 lots
  • sellers have 5,227 lots left, ~1420 sessions to clear

Window from 2026-01-17 · Price +72% · branches to 2026-06-17· TDCC to 2026-06-12

  • Largest holder 台灣摩根士丹利 has accumulated 8,863 lots since the start (sold 0%), still adding.
  • Main distributor 元大證券 peaked at 4,766 lots, has sold 37%, 3,026 left, ~120 sessions to clear at the recent pace.
  • TDCC big holders (absolute) >1000-lot holders +4.68pp, mid holders -1, retail -1.67pp — concentration shifting upward.
  • Foreign hedge-desk net short Net short -7,652 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
台灣摩根士丹利美商高盛富邦證券華南永昌國泰-敦南凱基-站前
Distributing
元大證券港商野村花旗環球國泰證券凱基-台北法銀巴黎
Desks
own scale
美林中國信託摩根大通統一
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 +8,863
    sold 0%· still adding
  • 美商高盛 +6,868
    sold 16%
  • 富邦證券 +2,008
    sold 18%
  • 華南永昌 +1,101
    sold 2%
  • 國泰-敦南 +835
    sold 11%· still adding
  • 凱基-站前 +737
    sold 0%· still adding

Distributing

  • 元大證券 3,026 left
    sold 37%· ~120 sessions to clear
  • 港商野村 609 left
    sold 77%· ~3 sessions to clear
  • 花旗環球 229 left
    sold 90%· ~9 sessions to clear
  • 國泰證券 1,351 left
    sold 29%· paused recently
  • 凱基-台北 800 left
    sold 40%· ~444 sessions to clear
  • 法銀巴黎 512 left
    sold 34%· paused recently

Desks

  • 美林 -4,198
    hedge desk · will cover
  • 中國信託 -2,631
    unclassified
  • 摩根大通 -1,588
    hedge desk · will cover
  • 統一 -1,564
    unclassified
Still selling 5,227 lots ~1420 sessions to bottom at most
Recent buy/sell force +5,171 absorbed / -2,850 sold buyers slightly ahead
Hedge-desk net short -7,204 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)

Direction matches: big-holder share rose while retail share fell.

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)
0-20 944+11.1% +4.1% 52.8% -6.8%
20-40 407+11.4% +10.8% 63.9% -10.8%
40-60 448+7.7% +7.1% 57.1% -1.7%
60-80 566+4.9% +2.6% 54.6% -2.8%
80-100 You are here646+3.1% -5% 45% -21.3%

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 ≈ 33.38, at the 97.2th 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
+9.6%
Win rate 69.6% Excess -0.1%
438d
+7.7%
Win rate 56.9% Excess -1.5%
439d
Now
+2.3%
Win rate 50% Excess -7.4%
750d
60-day momentum down
+3.3%
Win rate 50.3% Excess -3.8%
833d
+5.3%
Win rate 51.1% Excess +4.4%
370d
+5.9%
Win rate 60.7% Excess -10.6%
300d

Currently in “Expensive (own-history top 1/3) × 60-day momentum up”: across 750 historical days, 120-day forward avg gained 2.3%, win rate 50%, lagged the market by 7.4%.

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.

26 times historically; 60-day forward avg +0.68%, win rate 44%, beating the market by -2.88 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).

69 times historically; 60-day forward avg +5.26%, win rate 65.5%, beating the market by +3.88 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.

64 times historically; 60-day forward avg +5.21%, win rate 54.8%, beating the market by -0.21 pts on average.

What does 同欣電 do? Company profile

電子業-半導體;半導體構裝、封裝測試、陶瓷電路板與模組封裝 台灣證券交易所上市

Overview

6271 對應同欣電子工業股份有限公司,為台灣證券交易所上市普通股,非 ETF/ETN/權證。公司成立於1974年8月11日,上市日期為2007年11月16日,總部與登記地址為桃園市八德區和平路1125巷88號。董事長為陳泰銘,總經理為呂紹萍;呂紹萍於2024年5月30日就任總經理。實收資本額為新台幣2,090,580,240元,已發行普通股209,058,024股。2024永續報告書列全球員工3,449人;2024年報從業員工表列113年度約3,414人、114年截至4月18日約3,374人,兩者可能因統計口徑不同。主要股東依2025年股東會年報截至2025年3月30日資料,包括富邦人壽4.90%、凱美電機4.67%、陳泰銘4.57%、中華郵政3.78%、國泰人壽3.06%、木葉文投資2.11%、全球人壽1.93%、先進星光國際股票指數基金投資專戶1.23%、梵加德新興市場股票指數基金投資專戶1.19%、國新投資1.16%。公司治理結構與董事席次顯示泛國巨集團影響力明顯,董事長陳泰銘亦為國巨集團創辦人暨董事長。

Business

同欣電定位為利基型半導體封裝與陶瓷基板廠,核心能力包括厚薄膜陶瓷基板、DPC/DBC/AMB陶瓷電路板、CMOS影像感測器晶圓測試、研磨、晶圓重組、封裝、自動檢驗與成品測試,以及高頻無線通訊模組、混合積體電路模組、功率半導體與生醫產品封裝測試。公司官網列產品服務為陶瓷電路板、影像產品、模組封裝、客製化封裝與測試。依公司登記/公開資料揭露的經營項目比重,影像產品約50.71%、陶瓷電路板約19.82%、混合積體電路模組約15.87%、高頻無線通訊模組約12.63%;另2024年報揭露113年度銷售地區以客戶總部所在地統計,美洲61.90%、亞洲21.44%、歐洲12.99%、內銷及其他3.67%。2024年合併營收為新台幣120.91億元,年增約4%;產品毛利率約27%。影像產品主要用於車用倒車影像、環景、車道偏移警示、駕駛監控、疲勞駕駛預警、行人/自行車示警、手機、筆電、監控、醫療影像與熱成像;年報引用Yole 2024並以公司出貨量推估,同欣在車用Image Sensor出貨市占率約38.2%。陶瓷電路板用於高亮度LED、一般/植物/車用照明、雷射、工業自動控制、半導體設備、功率模組與資料中心熱控/雷射應用。高頻無線通訊模組用於RF功率放大器、FEM、寬頻數位通訊、低軌衛星、光通訊/資料中心高速傳輸等。混合積體電路模組用於汽車、航太、通訊、醫療感測器、工業控制與高可靠性電子產品。商業模式以客戶委託的封裝、測試、基板與模組製造服務為主,強調基板、封裝、測試一站式整合;主要客戶多以匿名I/H/J公司揭露,2024年前三大銷貨客戶合計約56.81%,但年報表示主要單一客戶占比近年已逐漸下降。

Outlook 2025–2028

2025至2028年的主要成長動能包括:一、車用CIS與ADAS滲透率提升。年報引用Yole資料,車用影像感測器市場未來5年複合成長率約8.3%,每車影像感測器平均顆數由2024年的2.8顆提升至2029年的3.9顆;同欣在車用影像封裝、晶圓重組、防眩光封裝、mPBGA與堆疊式高畫素晶片封裝方案具既有客戶與專利布局。二、AI資料中心與光通訊。2026年法說相關報導指出,公司上調全年成長幅度,高頻通訊模組為最大成長引擎之一,400G升級800G趨勢帶動光通訊模組需求,光通訊占比可望提升。三、陶瓷基板新應用。AI資料中心雷射元件、熱電轉換器/TEC、半導體雷射、工業雷射、功率模組散熱需求,帶動高導熱陶瓷基板、Ceramic core substrate、DPC/DBC/AMB等產品。四、功率半導體與第三代半導體。公司研發方向包括SiC/GaN裸晶晶圓重組、離散元件、模組封裝測試,應用於電動車DC/DC、OBC、逆變器、資料中心VMR/UPS/固態繼電器與智慧電網;年報引用Yole 2024指出2023至2029年SiC MOSFET Module、SiC MOSFET Discrete與GaN HEMT Discrete皆有高雙位數以上CAGR。五、海外產能與供應鏈韌性。公司深耕菲律賓製造逾30年,2026報導稱菲律賓廠營收占比約三成並啟動新廠建設,未來導入陶瓷基板與功率半導體封裝產線,承接部分台灣轉移影像產品產能;公司預估2026年資本支出約10億至14億元。主要風險包括:車用市場與電動車需求波動、LED照明成熟後價格競爭、中國半導體在地化導致晶圓重組/測試競爭加劇、車規與高可靠度新產品導入週期長、主要客戶集中度仍高、匯率與原物料/人力成本、關稅與地緣政治、光通訊與功率封裝面臨國際IDM及大型封測廠競爭。2027至2028具體財務數字公司未公開,以上為依公司年報、永續報告書與法說新聞推估之產業展望。

Supply Chain

Upstream
  • 壬廠商(年報匿名) 2024年報揭露之主要供應商之一,113年度進貨金額約769,122千元、占進貨淨額18.28%;公司未揭露實名,與發行人關係列為無。
  • 癸廠商(年報匿名) 2024年報揭露之主要供應商之一,113年度進貨金額約447,128千元、占進貨淨額10.62%;公司未揭露實名,與發行人關係列為無。
  • PCB、陶瓷基板、環氧樹脂、玻璃蓋、線材、IC、製程膠帶、金鹽等材料供應商 主要原料來源包括中國、日本、瑞士、台灣、美國、馬來西亞、新加坡、韓國等;年報列供應狀況為貨源充足。
  • IDM與晶圓製造商(Si、GaAs、SiC、GaN) 為同欣影像、RF、功率半導體封裝與測試的上游晶片/晶圓來源;年報產業鏈圖列IDM、FAB、Power/RF、Compound等材料/製程來源,但未揭露具名供應商。
Downstream
  • I公司、H公司、J公司(年報匿名主要客戶) 2024年報揭露113年度前三大銷貨客戶分別占22.59%、17.49%、16.73%,合計約56.81%;公司未揭露實名,與發行人關係列為無。
  • 車用CMOS影像感測器客戶與車用電子供應鏈 下游終端為ADAS、環景、倒車影像、駕駛監控、行車紀錄、智慧座艙與自動駕駛感知;市場報導提及安森美、豪威、Sony等國際CIS廠可能為相關客戶,屬未由公司正式具名確認資訊。
  • 低軌衛星、光通訊與資料中心高速傳輸客戶 高頻無線通訊模組與光通訊封裝下游;2026法說新聞指出低軌衛星世代轉換及400G升級800G趨勢推動需求,但公司未正式具名客戶。
  • 車用LED、半導體雷射、TEC、功率模組與工業控制客戶 陶瓷基板與混合積體電路模組下游應用;包括車燈、植物照明、雷射封裝、AI資料中心熱控、SiC/GaN功率模組、電動車與智慧電網。

Competitors

  • 精材科技股份有限公司 3374 台股上市櫃公司;CIS晶圓級封裝、影像感測封裝相關同業,與同欣在影像感測器封裝/測試領域有競合。
  • 京元電子股份有限公司 2449 台股上市公司;半導體測試大廠,市場報導列為CIS測試受惠廠之一,與同欣影像測試/後段服務部分競爭。
  • 久元電子股份有限公司 6261 台股上櫃公司;測試與切割服務廠,市場報導列為CIS測試相關廠商。
  • 九豪精密陶瓷股份有限公司 6127 台股上櫃公司;陶瓷基板廠,產品偏電阻用陶瓷基板、LED/車用/氮化鋁基板等,與同欣陶瓷基板在部分應用具可比性,但產品結構不完全相同。
  • 日月光投控 3711 台股上市公司;全球大型封測平台,在SiP、模組封裝、先進封裝與光通訊/資料中心相關封裝具規模競爭力,與同欣在部分高頻模組與客製化封裝市場競爭。
  • 矽格股份有限公司 6257 台股上市公司;半導體測試與封裝廠,屬後段封測同業,部分測試/封裝服務與同欣可比較。
  • 國際IDM與大型封測廠 非單一台股公司;在車用CIS、功率半導體、光通訊封裝與高可靠度模組領域,國際IDM自製或大型OSAT擴張均可能形成競爭。
Sources(17)

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.