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Help me set up FinLab and analyze 3339 泰谷. Please read: https://finlab.finance/en/setup?stock=3339

3339

泰谷 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 泰谷 to your watchlist to track signal changes on your next visit.
Valuation 11Quality 10Growth 9Momentum 76Chips 17

Is 泰谷 a buy? Fundamentals and valuation first

  • Weak profitability.Operating margin is in the 16th market percentile. Latest quarterly ROE ≈ -7.1%.

  • Valuation is high.PE is in the 95th market percentile; within its own history, PE is around the 84th percentile.

  • Foreign investors are net selling.Foreign 20-day net flow ≈ -3.0% of volume (net sell).

Chip flow

Bullish +0.26
BearishNeutralBullish

Single-sided accumulation, concentration rising — bullish

  • Single-sided accumulation, concentration rising — bullish
  • 富邦-仁愛 holds 1,421 lots
  • sellers have 2,565 lots left, ~40 sessions to clear

Window from 2026-01-17 · Price +70% · branches to 2026-06-17· TDCC to 2026-06-12

  • Largest holder 富邦-仁愛 has accumulated 1,421 lots since the start (sold 3%), still adding.
  • Main distributor 凱基-台北 peaked at 2,051 lots, has sold 51%, 998 left, ~15 sessions to clear at the recent pace.
  • TDCC big holders (absolute) >1000-lot holders +4.32pp, mid holders -3, retail +1.67pp — concentration shifting upward.
  • Foreign hedge-desk net short Net short -349 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
富邦-仁愛元大-四維統一-高雄台新-大裕元大-中和元大-學甲
Distributing
凱基-台北臺銀-高雄台新-緯城兆豐-小港美商高盛新加坡商瑞銀
Desks
own scale
統一-南京陽信永豐金-板新中國信託
Price Accumulating & Distributing share one scale (comparable); Desks is independent. Zero is the baseline
Branch details Unit: lots

Accumulating

  • 富邦-仁愛 +1,421
    sold 3%· still adding
  • 元大-四維 +595
    sold 6%
  • 統一-高雄 +595
    sold 0%· still adding
  • 台新-大裕 +550
    sold 5%· still adding
  • 元大-中和 +506
    sold 2%
  • 元大-學甲 +479
    sold 10%· still adding

Distributing

  • 凱基-台北 998 left
    sold 51%· ~15 sessions to clear
  • 臺銀-高雄 837 left
    sold 28%· paused recently
  • 台新-緯城 274 left
    sold 72%· paused recently
  • 兆豐-小港 239 left
    sold 71%· paused recently
  • 美商高盛 203 left
    sold 71%· ~27 sessions to clear
  • 新加坡商瑞銀 320 left
    sold 47%· paused recently

Desks

  • 統一-南京 -856
    unclassified
  • 陽信 -740
    unclassified
  • 永豐金-板新 -578
    unclassified
  • 中國信託 -577
    unclassified
Still selling 2,565 lots ~40 sessions to bottom at most
Recent buy/sell force +1,346 absorbed / -2,048 sold sellers slightly ahead
Hedge-desk net short -217 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)

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

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 23Insufficient data
20-40 0Insufficient data
40-60 0Insufficient data
60-80 171+135.9% +116.4% 99.4% +94.1%
80-100 You are here24Insufficient data

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 ≈ 150.4, at the 84.2th 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
Insufficient data
(3d)
Insufficient data
(0d)
Now
+56.7%
Win rate 64.4% Excess +39.4%
202d
60-day momentum down
Insufficient data
(20d)
Insufficient data
(8d)
+41.1%
Win rate 48.6% Excess +26%
105d

Currently in “Expensive (own-history top 1/3) × 60-day momentum up”: across 202 historical days, 120-day forward avg gained 56.7%, win rate 64.4%, beat the market by 39.4%.

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.

18 times historically; 60-day forward avg +13.11%, win rate 76.5%, beating the market by +7.96 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).

82 times historically; 60-day forward avg +3.14%, win rate 40.5%, beating the market by -1.41 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.

33 times historically; 60-day forward avg +7.24%, win rate 46.9%, beating the market by +1.53 pts on average.

What does 泰谷 do? Company profile

光電業;LED磊晶片、晶粒與III-V族化合物半導體光電元件 上櫃

Overview

3339 對應證券為泰谷,為櫃買中心上櫃普通股。公司成立於2000年5月31日,2004年6月21日登錄興櫃,2006年6月27日上櫃,總部與主要廠區位於南投縣南投市南崗工業區自強三路18號,另有台北辦公室。英文名稱 TEKCORE CO., LTD,英文簡稱 TEKCORE,統一編號70774610。實收資本額約新台幣6.65683億元,已發行普通股66,568,300股,每股面額10元。依2026年前後公開資訊與財經資料,董事長為蔡兆全,總經理為黃國師;2024年年報揭露黃國師曾任董事長、蔡兆全任總經理,2025年8月董事會公告蔡兆全接任董事長,黃國師仍為董事並轉任總經理。2024年年報列示2025年4月20日主要股東包括善宜投資股份有限公司8.74%、林炫佑4.51%、泰谷光電庫藏股3.68%、李承3.51%、豐聖興業3.15%、徐俊良2.09%、李青1.89%、戴麗滿1.86%、花旗託管柏克萊資本SBL/PB投資專戶1.52%、何皇興1.44%。員工規模方面,2024年底157人,2025年3月31日159人。公司早期為億光轉投資之LED晶粒廠,2024年董事會改組後加速往半導體、矽光子與光通訊應用轉型。

Business

泰谷核心業務為LED上游磊晶片與晶粒之研發、製造與銷售,主要材料與產品包括InGaN藍光、綠光、紫外光,AlGaInP紅光、橘紅光、黃光,AlGaAs紅外光,以及GaN/GaAs相關晶粒。2024年營收新台幣624,855仟元,營業毛利87,498仟元,稅後淨利15,475仟元,EPS 0.25元;2024年產品營收比重為GaN/GaAs晶粒624,361仟元、99.92%,晶片166仟元、0.03%,其他328仟元、0.05%。銷售區域2024年內銷288,688仟元、46.20%,亞洲外銷336,084仟元、53.79%,美洲與歐洲占比極低。商業模式是以上游晶粒/磊晶製造供應下游封裝廠,並與封裝廠共同開發客製化、高亮度、紅外線、車用、背光、家電、交通號誌與感測應用產品。2024年兩大銷貨客戶分別占42.47%與40.82%,公司未揭露客戶名稱;年報說明A客戶成長來自背光、家電需求與下半年車用機種增加,B客戶成長來自既有產品線需求與新產品應用/機種增加。製程方面,以MOCVD為磊晶成長平台,搭配曝光、蒸鍍、乾蝕刻、PECVD、晶圓接合、雷射切割、點測與篩選等晶粒製程。公司網站2025-2026年產品敘述顯示,泰谷已將產品布局延伸至390-1600nm全波段光電解決方案、InGaN/AlGaInP/InP材料平台、高功率雷射二極體、矽光子外接光源、高速Transceiver、CPO與ELS應用;另透過集團資源布局半導體後段封裝檢測、晶圓檢測與新興科技IP。

Outlook 2025–2028

2025-2028年展望可分為既有LED利基產品與新興半導體/矽光子兩條主線。第一,既有LED產品仍以紅/黃光、四元植物燈、超高亮度、紅外線850nm/940nm、車用大尺寸超高亮度、交通燈綠光、低藍光/護眼白光等利基型應用為重點,2024年年報的2025營業計畫明確提到延續車用紅黃光、四元植物燈、超高亮度產品,並推出符合能源之星的高效能白光產品。第二,泰谷近年公開表示投入光通訊與矽光子,2025年加入SEMI矽光子聯盟,網站主打50-100mW CW Laser作為矽光子晶片外接光源,鎖定高速Transceiver、CPO、ELS與AI資料中心低延遲/低功耗需求;媒體報導亦提到公司將傳統設備與製程延伸至磷化銦,開發50mW、70mW大功率LD產品並鎖定800G/1.6T光模組。第三,半導體檢測布局方面,公司網站列示正誠電子提供IC檢測、滾墨與雷射代工,泰士科技提供晶圓探針卡設計製造,承芯科技提供新興科技IP;此部分若整合集團資源成功,可能降低純LED景氣循環依賴。第四,產業面動能包括車用LED滲透率提升、Mini LED/HDR車用顯示、ADB頭燈、Logo Lamp、氛圍燈、PPG生物感測、IR LED、Micro LED與矽光子/CPO帶來的新光源需求。第五,主要風險包括LED通用產品價格競爭與中國供給壓力、客戶集中度高、主要供應商與原物料交期/價格波動、匯率與通膨、專利侵權風險、專業人才不足、轉型期研發與設備投入拖累毛利與獲利、矽光子/LD產品量產時程與客戶認證不確定,以及未揭露客戶訂單變動。2025-2028的半導體與矽光子營收占比、量產時點與獲利改善仍需以後續法說會、月營收與財報驗證。

Supply Chain

Upstream
  • A供應商/FX 年報揭露之主要外購片或晶粒供應來源,2024年採購102,727仟元、占進貨淨額32.92%;公司未揭露完整名稱,供應狀況良好。
  • B供應商/HX 年報揭露之主要供應商,2024年採購58,991仟元、占18.91%;公司未揭露完整名稱。
  • C供應商/AX 年報揭露之主要供應商,2024年採購46,122仟元、占14.78%;公司未揭露完整名稱。
  • 光洋應用材料科技股份有限公司 1785 財經資料列為泰谷供應商之一;公司年報僅以部分遮蔽名稱揭露貴金屬供應來源,未能完全確認是否即為年報所稱光X供應商。
  • 漢科系統科技股份有限公司 3402 財經資料列為泰谷供應商之一,可能與設備/工程或製程系統相關;非年報明名揭露,需保留不確定性。
  • MOCVD與磊晶/晶粒製程設備及材料供應商 上游包括MOCVD設備、TMGa、TMIn、TEGa、Cp2Mg、TMAl、NH3、SiH4、PH3、AsH3、藍寶石基板、GaAs基板、化學溶液、氣體與貴金屬等;多數供應商未公開具名。
Downstream
  • A客戶 年報揭露之最大客戶,2024年銷貨265,371仟元、占42.47%;名稱未公開,需求成長來自背光、家電與車用機種增加。
  • B客戶 年報揭露之第二大客戶,2024年銷貨255,077仟元、占40.82%;名稱未公開,成長來自既有產品線與新產品應用/機種需求。
  • 全球前十大LED封裝廠 MoneyDJ與年報脈絡指出主要客戶為LED封裝廠;實際客戶多未揭露,終端應用包含背光、家電、車用、消費電子、交通號誌、資訊設備、通訊、裝飾與感測。
  • 億光電子工業股份有限公司 2393 泰谷早期為億光轉投資之LED晶粒廠,歷史上與億光集團關係密切;2024年後經營權與董事會結構已變動,是否仍為主要客戶需以公司未來揭露為準。
  • 正誠電子股份有限公司 泰谷集團半導體後段封裝檢測服務平台,未上市櫃;公司網站列示其提供IC檢測、滾墨與雷射代工。
  • 泰士科技股份有限公司 泰谷集團晶圓檢測/探針卡相關平台,未上市櫃;公司網站列示其專注半導體測試階段。

Competitors

  • 富采投資控股股份有限公司 3714 年報與MoneyDJ列為主要競爭者;旗下晶電等事業為LED磊晶/晶粒重要廠商,2024年年報以晶粒/晶片收入估算其台灣LED晶粒市占居首。
  • 台亞半導體股份有限公司 2340 年報與MoneyDJ列為主要競爭者;涵蓋光電半導體與LED/感測相關產品。
  • 鼎元光電科技股份有限公司 2426 年報與MoneyDJ列為主要競爭者;LED晶粒、光電元件與感測應用同業。
  • 光鋐科技股份有限公司 4956 年報與MoneyDJ列為主要競爭者;主要製造高亮度LED藍綠光、紅黃橙光磊晶片及晶粒。
  • 聯勝光電股份有限公司 年報與MoneyDJ列為主要競爭者;股票代號3656但屬公開發行/興櫃或未上市櫃狀態,非上市櫃公司,故stock_id依規範填null。
  • ams OSRAM 國際LED與光電半導體競爭者,非台股上市櫃。
  • Nichia(日亞化學) 國際LED大廠,非台股上市櫃。
  • Seoul Semiconductor 韓國LED大廠,非台股上市櫃。
  • 三安光電 中國LED晶片與化合物半導體大廠,非台股上市櫃。
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.