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Help me set up FinLab and analyze 6517 保勝光學. Please read: https://finlab.finance/en/setup?stock=6517

6517

保勝光學 Optoelectronics 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 保勝光學 to your watchlist to track signal changes on your next visit.
Valuation 30Quality 59Growth 6Momentum 64Chips 32

Is 保勝光學 a buy? Fundamentals and valuation first

  • Above-average profitability.Operating margin is in the 58th market percentile. Latest quarterly ROE ≈ 2.4%.

  • Valuation is neutral.PE is in the 79th market percentile; within its own history, PE is around the 100th percentile.

  • Foreign investors are net selling.Foreign 20-day net flow ≈ -0.9% of volume (net sell).

Chip flow

Bullish +0.47
BearishNeutralBullish

Institutional rotation, concentration steady — bullish

  • Institutional rotation, concentration steady — bullish
  • 華南永昌-高雄 holds 308 lots
  • sellers have 673 lots left, ~120 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-高雄 has accumulated 308 lots since the start (sold 0%), still adding.
  • Main distributor 凱基-台北 peaked at 556 lots, has sold 89%, 61 left, ~10 sessions to clear at the recent pace.
  • TDCC big holders (absolute) >1000-lot holders +0.00pp, mid holders +1, retail -1.87pp — little change.
  • Foreign hedge-desk net short Net short -240 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-高雄永豐金-台南群益金鼎-三民元大-新生元大-台中兆豐-三民
Distributing
凱基-台北新加坡商瑞銀第一金-新竹台新-中港國泰-館前台灣摩根士丹利
Desks
own scale
美林富邦-仁愛富邦-中壢新光
Price Accumulating & Distributing share one scale (comparable); Desks is independent. Zero is the baseline
Branch details Unit: lots

Accumulating

  • 華南永昌-高雄 +308
    sold 0%· still adding
  • 永豐金-台南 +182
    sold 0%
  • 群益金鼎-三民 +172
    sold 0%· still adding
  • 元大-新生 +116
    sold 0%· still adding
  • 元大-台中 +113
    sold 0%· still adding
  • 兆豐-三民 +109
    sold 0%· still adding

Distributing

  • 凱基-台北 61 left
    sold 89%· ~10 sessions to clear
  • 新加坡商瑞銀 172 left
    sold 36%· ~45 sessions to clear
  • 第一金-新竹 50 left
    sold 76%· ~50 sessions to clear
  • 台新-中港 101 left
    sold 37%· ~17 sessions to clear
  • 國泰-館前 54 left
    sold 64%· ~6 sessions to clear
  • 台灣摩根士丹利 41 left
    sold 63%· ~14 sessions to clear

Desks

  • 美林 -194
    hedge desk · will cover
  • 富邦-仁愛 -116
    unclassified
  • 富邦-中壢 -98
    unclassified
  • 新光 -90
    unclassified
Still selling 673 lots ~120 sessions to bottom at most
Recent buy/sell force +2,074 absorbed / -469 sold buyers slightly ahead
Hedge-desk net short -209 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 0Insufficient data
20-40 0Insufficient data
40-60 0Insufficient data
60-80 0Insufficient data
80-100 You are here0Insufficient 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 ≈ 58.66, at the 100.0th 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
(0d)
Insufficient data
(0d)
Now
Insufficient data
(0d)
60-day momentum down
Insufficient data
(0d)
Insufficient data
(0d)
Insufficient data
(0d)

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.

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).

9 times historically; 60-day forward avg +17.73%, win rate 44.4%, beating the market by +9.78 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.

12 times historically; 60-day forward avg +6.06%, win rate 41.7%, beating the market by -2.57 pts on average.

What does 保勝光學 do? Company profile

光電業;光學儀器與光學鏡片、鏡頭製造 上櫃(櫃買中心)

Overview

保勝光學股份有限公司為台灣上櫃普通股,代號6517,簡稱保勝光學,英文簡稱BASO。公司成立於1970年7月30日,總部及主要廠區位於台中市潭子區建國路14號,位於台中潭子科技產業園區;公司自稱為台灣最早成立之光學玻璃透鏡製造廠商。股票於2021年11月12日登錄興櫃,2022年12月15日轉上櫃,產業類別為光電業。實收資本額約新台幣3.05791億元,已發行普通股約30,579,053股;2025年法說會揭露員工人數229人。董事長為方幼玲;總經理原為葉霖松,2026年4月7日公告異動為陳宇征。公司通過ISO 9001、ISO 14001、ISO 45001、MRPII A級、Sony Green Partner等認證。主要股東(資料日2025年4月12日)包括方幼玲8.13%、哥倫布投資5.10%、麥哲倫投資4.74%、陳伯俞4.06%、匯豐(台灣)商業銀行受託保管法國興業歐洲選擇權投資專戶3.45%等。子公司方面,公開資料顯示保得士光學股份有限公司為100%持股子公司。

Business

公司主要從事各類光學鏡片、鏡頭之研發、製造及銷售,定位為高階、客製化玻璃光學元件與鏡頭供應商,主力市場偏向玻璃元件、大口徑與高階工業應用,而非低價大量消費性塑膠鏡頭。主要產品與應用包括高階投影機與劇院投影鏡頭、運動光學(瞄準鏡、賞鳥鏡、Spotting Scope等)、AOI自動光學檢測鏡頭、半導體設備用鏡頭與對位/檢測光學元件、天文及航太光學、衛星攝影鏡頭、醫療與生醫鏡頭、雷射相關光學元件、各式光學鏡片元件及陽極處理。商業模式以少量多樣、高規格客製化OEM/ODM與design-in合作為主,早期即與客戶共同定義規格與設計,透過自主光學設計、機構設計、研磨拋光、組裝與檢測能力提高開發效率與附加價值。2025年第1季應用別營收結構依公司法說新聞揭露為運動光學66%、投影設備21%、AOI/半導體/航太12%、其他1%;2025年產品別營收比重第三方資料顯示光學鏡頭約61.09%、光學鏡片約34.00%、其他約4.91%,此部分非公司法說文字直接揭露,應視為參考。客戶與終端應用方面,公開資料提及投影機客戶包括BARCO,運動光學或影像應用包括SONY,歷史沿革及報導亦提及Swarovski Optik等國際客戶;公司亦已切入AOI、半導體設備、航太遙測、低軌衛星等高精度應用。

Outlook 2025–2028

2025至2028年展望重點在高精度光學元件升級與應用組合轉型。成長動能一:AOI自動光學檢測,受電子製造、半導體、工業自動化與人力短缺推升,對高解析、低畸變、多倍率檢測鏡頭需求增加;公司2025年法說新聞引用研究資料指出2024至2030年AOI市場年複合成長率約20.81%。成長動能二:半導體設備與檢測光學,公司2015年取得世界知名半導體廠商認證、2018年半導體設備用鏡頭量產出貨,2025年法說將半導體列為持續爭取重點訂單,且引用半導體應用年複合成長率約10.8%。成長動能三:航太、國防與低軌衛星遙測,公司2021年太空衛星遙測鏡頭通過客戶驗收,2024年開發低軌衛星鏡頭,2025年法說將航太科技列入未來產品布局,並引用航太及國防應用年複合成長率約6.7%。成長動能四:製程技術升級,公司2024年引進台灣民營企業第一台非球面研拋設備,2025年法說揭露高精度平面鏡面型精度達0.043um(43nm),並規劃高精度球面、非球面、大口徑玻璃非球面、DUV相關光學、MRF拋光與自動化拋光線等技術路線;2025年年報摘要亦列出2026年研發計畫包含半導體光學元件、高解析工業檢測鏡頭、遙測鏡頭、雷射光學元件、生物醫學鏡頭。營運挑戰包括:客戶交期與產品組合差異造成營收及毛利波動;高階光學開發週期長、驗證門檻高且新產品量產時程不確定;匯率波動雖公司表示新台幣兌美元變動1%對毛利率影響不到1個百分點,但大幅波動仍需與客戶協商;關稅、地緣政治、國防航太管制、半導體設備景氣循環與客戶集中風險需持續觀察;國內外光學廠及中國大陸供應鏈競爭也可能壓縮價格與訂單。

Supply Chain

Upstream
  • 光學玻璃硝材供應商 主要原料來源類別;公司產品所需原料包括光學玻璃硝材,未在公開資料中完整揭露特定供應商名單。
  • 金屬鏡筒與機構件加工供應商 主要原料與零組件來源類別;包括金屬鏡筒、前置與墊間、鏡筒與前蓋等,公開資料未揭露特定台股供應商。
  • 塑膠鏡片與光學零組件供應商 部分鏡頭/模組所需零件來源;公司主力為玻璃鏡頭與鏡片,但公開資料列示塑膠鏡片亦為原料之一,未揭露特定供應商。
  • OptoTech 德國光學研磨拋光設備商;2025年法說技術路線圖出現OptoTech MCG250、MCP251等設備,屬非台股掛牌公司。
Downstream
  • BARCO 比利時投影與視覺化設備公司;公開資料提及保勝光學投影機光學鏡頭/鏡片客戶包括BARCO,屬海外企業。
  • SONY 日本上市消費電子與影像品牌;公開資料提及保勝光學客戶包括SONY,台股無對應代號。
  • Swarovski Optik 奧地利運動光學品牌;公司歷史資料提及1995至2000年間成為Swarovski Optik主要上游廠商,非台股掛牌。
  • AOI自動光學檢測設備廠 下游應用客戶類別;使用保勝光學高解析、低畸變、多倍率檢測鏡頭,公開資料未完整揭露客戶名單。
  • 半導體設備與檢測設備廠 下游應用客戶類別;公司2018年半導體設備用鏡頭量產出貨,2025年法說列為重點爭取訂單,公開資料未揭露完整客戶名單。
  • 航太、國防與低軌衛星系統客戶 下游應用客戶類別;包含太空衛星遙測鏡頭、低軌衛星鏡頭、航太成像與遙測應用,客戶多未公開。

Competitors

  • 大立光 3008 台股上市光學鏡頭龍頭;主要強項為手機與精密光學鏡頭,與保勝在部分高階光學元件與鏡頭能力上具競合比較。
  • 亞光 3019 台股上市光學元件與鏡頭模組廠;涉足相機、車用、投影、光學零組件等領域。
  • 玉晶光 3406 台股上市光學鏡頭廠;主要產品偏手機及消費電子鏡頭,為國內光學同業。
  • 先進光 3362 台股上櫃光學鏡頭與光學元件廠;第三方資料列為保勝光學國內競爭廠商之一。
  • 今國光 6209 台股上櫃光學鏡片與鏡頭廠;第三方資料列為國內競爭廠商之一。
  • 光燿科 3428 台股上櫃光學鏡頭廠;第三方資料列為國內競爭廠商之一。
  • 佳凌 4976 台股上櫃光學鏡頭與光學元件廠;第三方資料列為國內競爭廠商之一。
  • 新鉅科 3630 台股上櫃光學鏡頭廠;第三方資料列為國內競爭廠商之一。
  • FUJINON/Fujifilm集團 日本光學品牌與鏡頭廠,非台股掛牌;第三方資料列為國際競爭廠商。
  • HOYA 日本光學材料與光學元件集團,非台股掛牌;第三方資料列為國際競爭廠商。
  • Tamron 日本鏡頭廠,非台股掛牌;第三方資料列為國際競爭廠商。
  • Sunny Optical 舜宇光學科技 香港上市光學零組件與鏡頭模組廠,非台股掛牌;第三方資料列為國際競爭廠商。
Sources(14)

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.