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Help me set up FinLab and analyze 2303 聯電. Please read: https://finlab.finance/en/setup?stock=2303

2303

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

strong quality, fair valuation, no active signal today.

This page refreshes daily after the close. Add 聯電 to your watchlist to track signal changes on your next visit.
Valuation 33Quality 80Growth 62Momentum 96Chips 88

Is 聯電 a buy? Fundamentals and valuation first

  • Top-tier profitability.Operating margin beats ~81% of the market. Latest quarterly ROE ≈ 4.1%.

  • Valuation is neutral.PE is in the 66th market percentile; within its own history, PE is around the 96th percentile.

  • Foreign investors are net buying.Foreign 20-day net flow ≈ 9.1% of volume (net buy).

Chip flow

Bullish +0.97
BearishNeutralBullish

Single-sided accumulation, concentration rising — bullish

  • Single-sided accumulation, concentration rising — bullish
  • 摩根大通 holds 200,339 lots
  • sellers have 40,888 lots left, ~51 sessions to clear

Window from 2026-01-17 · Price +124% · branches to 2026-06-17· TDCC to 2026-06-12

  • Largest holder 摩根大通 has accumulated 200,339 lots since the start (sold 6%), still adding.
  • Main distributor 新加坡商瑞銀 peaked at 85,743 lots, has sold 58%, 35,914 left, ~38 sessions to clear at the recent pace.
  • TDCC big holders (absolute) >1000-lot holders +3.16pp, mid holders +161, retail -3.48pp — concentration shifting upward.
  • Foreign hedge-desk net short Net short -4,786 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
摩根大通台灣摩根士丹利美林港商麥格理凱基-台北美商高盛
Distributing
新加坡商瑞銀統一大和國泰凱基-信義元大-大同統一-城中
Desks
own scale
群益金鼎國泰證券華南永昌兆豐證券
Price Accumulating & Distributing share one scale (comparable); Desks is independent. Zero is the baseline
Branch details Unit: lots

Accumulating

  • 摩根大通 +200,339
    sold 6%· still adding
  • 台灣摩根士丹利 +192,781
    sold 6%· still adding
  • 美林 +155,624
    sold 11%
  • 港商麥格理 +131,946
    sold 1%· still adding
  • 凱基-台北 +107,673
    sold 3%· still adding
  • 美商高盛 +86,129
    sold 7%· still adding

Distributing

  • 新加坡商瑞銀 35,914 left
    sold 58%· ~38 sessions to clear
  • 統一 19,606 left
    sold 55%· paused recently
  • 大和國泰 3,862 left
    sold 79%· paused recently
  • 凱基-信義 4,924 left
    sold 58%· paused recently
  • 元大-大同 3,379 left
    sold 66%· paused recently
  • 統一-城中 3,493 left
    sold 57%· paused recently

Desks

  • 群益金鼎 -129,498
    unclassified
  • 國泰證券 -100,237
    unclassified
  • 華南永昌 -59,405
    unclassified
  • 兆豐證券 -50,154
    unclassified
Still selling 40,888 lots ~51 sessions to bottom at most
Recent buy/sell force +360,352 absorbed / -14,018 sold buyers slightly ahead
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)
0-20 516+14.3% +14.3% 89.3% -10.8%
20-40 526+4.6% -2.1% 41.8% -10.1%
40-60 671+40.1% +15.2% 62.7% +21.3%
60-80 681+31.7% +16.7% 69.5% +17.8%
80-100 You are here595+43.1% +17.8% 63.9% +31.8%

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 ≈ 35.18, at the 95.5th 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
+5.1%
Win rate 70.8% Excess -8.5%
342d
+16.6%
Win rate 50.3% Excess +4.7%
761d
Now
+14.2%
Win rate 66.5% Excess +8.3%
799d
60-day momentum down
+6.7%
Win rate 68.7% Excess +4.2%
498d
+20.1%
Win rate 76.7% Excess +9.7%
596d
+14.2%
Win rate 100% Excess +8.8%
112d

Currently in “Expensive (own-history top 1/3) × 60-day momentum up”: across 799 historical days, 120-day forward avg gained 14.2%, win rate 66.5%, beat the market by 8.3%.

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.

32 times historically; 60-day forward avg +5.49%, win rate 45.2%, beating the market by +1.63 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).

43 times historically; 60-day forward avg +3.95%, win rate 42.1%, beating the market by +1.2 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.

56 times historically; 60-day forward avg +5.36%, win rate 52.7%, beating the market by +0.88 pts on average.

What does 聯電 do? Company profile

半導體業;晶圓代工、邏輯與特殊製程 台灣證券交易所上市

Overview

2303 對應聯華電子股份有限公司,為台灣證券交易所上市普通股,另於紐約證券交易所掛牌 ADR,代號 UMC。公司成立於 1980-05-22,1985-07-16 上市,總部位於新竹科學園區新竹市力行二路 3 號。董事長為洪嘉聰;管理階層資料顯示執行長王石、總經理暨營運長徐明志。實收資本額約新台幣 125,769,848,700 元,已發行普通股約 12,576,984,870 股。公司官方資料指出全球員工約 20,000 人,生產據點包含 4 座 12 吋廠、7 座 8 吋廠與 1 座 6 吋廠,合計月產能超過 400,000 片 12 吋約當晶圓,主要研發與多數 12 吋、8 吋晶圓廠位於台灣,並在新加坡、中國廈門、日本等地設有晶圓廠或營運據點。2025 年營收官方快照約 76 億美元;2025 年全年新台幣營收約 2,375.53 億元,年增 2.3%,為歷史次高。主要股東方面,公開資料可見外資與本土投信持股占比高,例如 BlackRock、Vanguard、群益投信、國泰投信、元大投信等機構投資人;但各來源揭露口徑與日期不同,未在本研究中列為精確前十大持股比例。

Business

聯電為純晶圓代工業者,商業模式是接受 IC 設計公司、IDM 與系統客戶委託,提供晶圓製造、製程平台、設計支援、IP、光罩服務、矽穿梭、測試與封裝解決方案等服務。核心產品不是自有品牌終端晶片,而是以 12 吋、8 吋與 6 吋晶圓廠代工生產邏輯與特殊製程晶片。主要技術包含 Logic/Mixed-Signal、嵌入式高壓 eHV、嵌入式非揮發性記憶體 eNVM、RFSOI、BCD、顯示驅動相關 eHV、電源管理、射頻、車用與工業控制相關製程。營收結構方面,公司登記/公開資訊資料顯示晶圓業務約占 97.44%、其他約 2.56%。2025 年第二季法說資料顯示,以區域看亞太 67%、北美 20%、歐洲 8%、日本 5%;以製程節點看 14/28 奈米區間約 40%、40 奈米約 15%、65 奈米約 17%、90 奈米約 7%、0.13 微米約 7%、0.18 微米約 9%、0.35 微米約 4%、0.5 微米以上約 1%;以客戶型態看 Fabless 約 81%、IDM 約 19%;以應用看通訊約 41%、消費約 33%、電腦約 11%、其他約 15%。2025 年第四季 22/28 奈米晶圓營收占比 36%,其中 22 奈米營收季增 31%,占第四季總營收超過 13%,全年 22 奈米營收年增 93%。終端應用涵蓋智慧型手機與 OLED 顯示驅動、網通、藍牙、乙太網路、消費電子、IoT、車用電子、電源管理、工業控制、AI/HPC 相關矽中介層與矽光子等。公司通常不逐一揭露完整客戶名單,因此具名客戶或下游客戶關係須以公開合作案與產業推估區分。

Outlook 2025–2028

2025 年聯電營運重點為 22/28 奈米與特殊製程組合改善、產能利用率修復與新加坡 Fab 12i 第三期擴建完成。2025 年第四季合併營收新台幣 618.1 億元,毛利率 30.7%,營業利益率 19.8%,產能利用率 78%,EPS 0.81 元;全年 EPS 3.34 元,晶圓出貨量年增 12.3%,美元營收年增 5.3%。2026 年公司展望偏正向,管理層表示晶圓需求維持穩健,22 奈米平台投片量加速成長,新解決方案持續獲客戶採用,有信心 2026 年再度成長。中期到 2028 年,主要成長動能包括:一、22/28 奈米特殊製程在 OLED 顯示驅動 IC、RF、網通、車用與 IoT 的需求;二、新加坡 Fab 12i P3/P4 相關擴產與供應鏈多元化需求,官方 2022 年宣布 P3 第一階段規劃月產能 30,000 片、22/28 奈米、總投資 50 億美元;三、與 Intel 的 12 奈米製程合作,目標推進美國供應鏈與較先進成熟節點服務;四、先進封裝、矽中介層、3D 晶圓堆疊與矽光子切入 AI、網通與高效能應用;五、eHV、NVM、BCD、RFSOI 等特殊製程持續提高產品組合價值。主要風險包括:成熟製程供給過剩,尤其中國中芯國際、華虹等擴充 28/22 奈米以上成熟產能;終端消費電子需求復甦不穩;價格競爭與產能利用率波動;匯率波動;美中科技戰、出口管制與地緣政治;高資本支出回收期;電力、水資源、化學品與人才供應限制;車用與工業客戶認證週期長;先進封裝與矽光子量產時程、良率與客戶導入不確定。2027-2028 年的具體財務數字未見公司正式長期指引,本研究僅能定性判斷其成長重心將落在 22/28 奈米、12 奈米合作、特殊製程、區域化產能與封裝/矽光子。

Supply Chain

Upstream
  • 環球晶圓 6488 台股上櫃矽晶圓供應商;為晶圓代工上游關鍵材料之一,是否為聯電特定採購供應商與供貨比例未由本研究來源確認。
  • 台灣光罩 2338 台股上市光罩廠;光罩為晶圓製造上游關鍵材料/服務,與聯電個別交易比例未確認。
  • 中美晶 5483 台股上櫃半導體材料與太陽能相關集團,持有環球晶圓;屬矽晶圓上游生態系關係企業。
  • 信越化學 日本上市矽晶圓與半導體材料大廠,屬全球晶圓代工上游重要材料供應商;非台股掛牌。
  • SUMCO 日本上市矽晶圓供應商,屬全球晶圓代工上游重要材料供應商;非台股掛牌。
  • ASML 荷蘭上市微影設備供應商,晶圓廠關鍵設備來源;非台股掛牌。
  • Applied Materials 美國上市半導體設備供應商,提供沉積、蝕刻、量測等製程設備;非台股掛牌。
  • Lam Research 美國上市半導體設備供應商,蝕刻與沉積等設備供應商;非台股掛牌。
  • Tokyo Electron 日本上市半導體設備供應商;非台股掛牌。
  • KLA 美國上市半導體量測與檢測設備供應商;非台股掛牌。
  • Linde 全球工業氣體供應商,半導體製程需大量特殊氣體;非台股掛牌。
  • 默克 Merck KGaA / EMD Electronics 德國上市電子材料與化學品供應商;非台股掛牌。
Downstream
  • 聯發科 2454 台股上市 IC 設計公司,屬聯電主要下游 Fabless 客戶族群之一;本研究未確認特定訂單占比。
  • 聯詠 3034 台股上市顯示驅動 IC 設計公司;聯電 2026 年公告仍持有/處分聯詠股票,產業上亦屬顯示驅動與 eHV 製程下游應用族群,個別代工占比未確認。
  • 瑞昱 2379 台股上市網通與多媒體 IC 設計公司;屬聯電通訊/消費/電腦應用可能下游客戶族群,個別交易未確認。
  • 矽創 8016 台股上櫃顯示驅動與感測 IC 設計公司;屬顯示驅動與消費應用可能下游,個別交易未確認。
  • 敦泰 3545 台股上市觸控與顯示驅動 IC 設計公司;屬 eHV/TDDI 相關下游應用族群,個別交易未確認。
  • Intel 美國上市 IDM;與聯電公布 12 奈米製程合作,屬技術/產能合作與潛在客戶關係,非台股掛牌。
  • 全球 Fabless 與 IDM 客戶 公司 2025 年第二季營收中 Fabless 約 81%、IDM 約 19%;聯電未完整公開客戶名單,包含通訊、消費、電腦、車用與工業應用客戶。

Competitors

  • 台灣積體電路製造 2330 台股上市全球最大晶圓代工廠;在先進製程與部分成熟/特殊製程均與聯電競爭。
  • 世界先進 5347 台股上櫃晶圓代工廠,以 8 吋與特殊製程、電源管理、顯示驅動等成熟製程為主,與聯電部分業務重疊。
  • 力積電 6770 台股上市晶圓代工與記憶體相關廠,成熟製程、顯示驅動、電源管理與邏輯代工領域部分競爭。
  • 中芯國際 香港/中國上市晶圓代工廠,積極擴充成熟製程與 28/22 奈米以上產能;非台股掛牌。
  • 華虹半導體 香港/中國上市晶圓代工廠,成熟與特殊製程競爭者;非台股掛牌。
  • GlobalFoundries 美國 NASDAQ 上市晶圓代工廠,聚焦成熟與特殊製程、RF、車用與工業應用;非台股掛牌。
  • Tower Semiconductor 美國 NASDAQ 上市、以色列晶圓代工廠,類比、RF、電源與特殊製程競爭者;非台股掛牌。
  • Samsung Foundry 韓國三星電子晶圓代工部門,先進與成熟製程均具競爭力;非台股掛牌。
Sources(10)

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.