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6435

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

steady quality, fair valuation.

1 active signal

Revenue ≥20%

This page refreshes daily after the close. Add 大中 to your watchlist to track signal changes on your next visit.

Is 大中 a buy? Fundamentals and valuation first

Above-average profitability.Operating margin is in the 76th market percentile. Latest quarterly ROE ≈ 6.9%.
Valuation is neutral.PE is in the 57th market percentile; within its own history, PE is around the 96th percentile.
Foreign investors are net buying.Foreign 20-day net flow ≈ 3.4% of volume (net buy).
Strong revenue growth.Latest monthly revenue YoY ≈ 22.2%, above the 20% growth threshold.
Signals are active now.On the latest data, signals such as Revenue YoY ≥ 20% are active — see the historical forward returns after each occurrence below.

Chip flow

Bullish +0.67

BearishNeutralBullish

Single-sided accumulation, concentration rising — bullish

Single-sided accumulation, concentration rising — bullish
摩根大通 holds 698 lots
sellers have 532 lots left, ~271 sessions to clear

Window from 2026-01-17 · Price +128% · branches to 2026-06-17· TDCC to 2026-06-12

Largest holder 摩根大通 has accumulated 698 lots since the start (sold 1%), still adding.
Main distributor 新光 peaked at 651 lots, has sold 46%, 352 left, ~271 sessions to clear at the recent pace.
TDCC big holders (absolute) >1000-lot holders +0.18pp, mid holders +2, retail -4.02pp — concentration shifting upward.
Foreign hedge-desk net short Net short -86 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

摩根大通美林香港上海匯豐華南永昌-林口元大-羅東兆豐-西螺

Distributing

新光新加坡商瑞銀美商高盛富邦證券富邦-新店凱基-科園

Desks

own scale

康和-新竹元大證券富邦-建國中國信託-三重

Price Accumulating & Distributing share one scale (comparable); Desks is independent. Zero is the baseline

Branch details Unit: lots

Accumulating

摩根大通 +698

sold 1%· still adding
美林 +327

sold 5%· still adding
香港上海匯豐 +208

sold 0%· still adding
華南永昌-林口 +113

sold 11%· still adding
元大-羅東 +108

sold 7%
兆豐-西螺 +86

sold 0%

Distributing

新光 352 left

sold 46%· ~271 sessions to clear
新加坡商瑞銀 200 left

sold 35%· paused recently
美商高盛 209 left

sold 31%· paused recently
富邦證券 21 left

sold 90%· paused recently
富邦-新店 42 left

sold 68%· paused recently
凱基-科園 12 left

sold 90%· paused recently

Desks

康和-新竹 -256

unclassified
元大證券 -124

unclassified
富邦-建國 -112

unclassified
中國信託-三重 -111

unclassified

Still selling 532 lots ~271 sessions to bottom at most

Recent buy/sell force +438 absorbed / -117 sold buyers slightly ahead

Hedge-desk net short -28 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

Signals active now

These signals are true on the latest data, with this stock's own historical forward-return stats after each occurrence.

Monthly revenue YoY ≥ 20% (from filing deadline)

Active · now 22.19%

Monthly revenue YoY ≥ 20%; event date is the first trading day after the filing deadline (no look-ahead).

65 historical occurrences (since 2016-01-07)

120 days after: historical avg +11.72%

20-day +3.14%

60-day +7.42%

120-day +11.72%

20-day

60-day

120-day

Win

53.6%

60.7%

63.6%

Sample

Median

+3.14%

+5.65%

+11.34%

Excess

+1.34%

+1.67%

+0.46%

Beat mkt rate

50%

40%

Over 55 occurrences, 120-day forward avg gained 11.72%, beat the market by 0.46 pts; win rate 63.6%.

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.

0-20 -3.9%

20-40 +6%

40-60 +35.1%

60-80 +22.8%

80-100 -1.7% Now

PE percentile band	Sample days	240-day avg return	Median	Win rate	Avg excess (vs index)
0-20	427	-3.9%	-9.4%	36.8%	-21.4%
20-40	225	+6%	+2.1%	53.3%	-7.3%
40-60	302	+35.1%	+20.7%	75.5%	+4.9%
60-80	382	+22.8%	+22.9%	91.6%	-6.8%
80-100 You are here	194	-1.7%	-2.2%	45.9%	-25.4%

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 ≈ 26.81, 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

-7.1%

Win rate 33.1% Excess -7.9%

242d

+24.3%

Win rate 59.7% Excess +8.5%

298d

Now

+5.2%

Win rate 53% Excess -14.3%

336d

60-day momentum down

+2.7%

Win rate 53.4% Excess -5.5%

348d

+15.2%

Win rate 74.8% Excess +2.4%

309d

+7%

Win rate 61.5% Excess -5.7%

117d

Currently in “Expensive (own-history top 1/3) × 60-day momentum up”: across 336 historical days, 120-day forward avg gained 5.2%, win rate 53%, lagged the market by 14.3%.

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.

Does this signal hold up across the market

Over the past 242 months, on average ~404 stocks per month met “monthly revenue YoY ≥ 20%”; their adjusted-close return over the next 60 trading days averaged 6.94% (equal-weighted), beating the market by 2.37 points on average, and outperformed the TAIEX total-return index in 64.5% of months.

Each month, equal-weighted 60-day forward adjusted return of all signal-matching stocks, then averaged across months; excess vs the TAIEX total-return index.

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.

19 times historically; 60-day forward avg +10.16%, win rate 38.9%, beating the market by +3.3 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.

36 times historically; 60-day forward avg +2.67%, win rate 52.9%, beating the market by -3.45 pts on average.

What does 大中 do? Company profile

半導體業；功率半導體／MOSFET IC 設計上櫃

Overview

大中積體電路股份有限公司，英文名 Sinopower Semiconductor Inc.，為台灣上櫃普通股公司，股票代號 6435，簡稱大中。公司於 2008 年 8 月 14 日核准設立，總部位於新竹科學園區篤行一路 6 號 5 樓；公司官網與財報揭露其主要營業項目為研究、設計、製造、銷售功率半導體元件及其模組、高壓積體電路及其模組等相關業務。董事長與總經理為薛添福。公司於 2016 年 1 月 7 日上櫃，產業別為半導體業。公司主要股東方面，公司官網主要股東名單揭露截至 2025 年 3 月 31 日，茂達電子股份有限公司持有 15,965,615 股、持股 42.60%，兆豐國際商業銀行受託大中積體電路股份有限公司員工持股信託專戶持有 1,653,435 股、持股 4.41%，薛添福持有 737,536 股、持股 1.96%，楊正忠持有 664,000 股、持股 1.77%，陳日昇持有 478,028 股、持股 1.27%，林偉捷持有 437,000 股、持股 1.16%。2026 年第一季財報亦揭露茂達電子為最終母公司，對大中持股比例為 42.62%。公司官網主要股東頁註明已發行股數為 37,476,300 股；以每股面額新台幣 10 元估算，實收資本額約新台幣 3.75 億元。2025 年度財報揭露本年度員工人數 103 人、前一年度 104 人。2025 年全年營業收入新台幣 34.01493 億元、基本 EPS 9.52 元，2026 年第一季營業收入新台幣 9.47542 億元、基本 EPS 3.67 元。2025 年度盈餘分派案經董事會決議擬配發現金股利每股 7.50 元，尚待股東會決議；公司章程股利政策為現金股利不得低於股利總額 10%，但得視獲利與資金狀況調整。

Business

大中為功率半導體設計公司，商業模式偏向 IC／功率元件設計、委外製造與銷售。公司官網說明其創立於 2008 年 8 月，為專業功率半導體元件 MOSFET、IGBT 及高壓積體電路 HV IC 設計公司，可提供電壓範圍 20V 至 1200V 的功率半導體元件。公司產品線包括 MOSFET：LV 低壓小於等於 40V、MV 中壓 60V 至 250V、HV 高壓大於 250V；DrMOS；以及符合 AEC-Q101 車用可靠度規範的 LV／MV 產品。公司官網列示的應用領域包括個人電腦與伺服器、工業自動化控制、手持式電子裝置、車用方案、液晶顯示器、風扇與馬達驅動、網路通訊、電池模組、交換式電源供應器。2025 年度財報營業收入附註顯示，2025 年收入幾乎全部來自「功率金氧半電晶體 IC」，金額新台幣 34.01493 億元；2024 年則為功率金氧半電晶體 IC 新台幣 27.15125 億元、技術服務收入新台幣 96 萬元，合計新台幣 27.16085 億元。2026 年第一季收入中，功率金氧半電晶體 IC 新台幣 9.46265 億元、技術服務收入新台幣 127.7 萬元，合計新台幣 9.47542 億元。公司重要客戶在財報中以代號揭露：2025 年度辛客戶收入新台幣 6.35392 億元、乙客戶 4.55552 億元、己客戶 4.73900 億元，另有甲客戶未達當年度收入 10%；公司未揭露具名終端客戶。母公司茂達電子亦為關係人銷貨對象，2025 年對茂達商品銷售收入新台幣 4,000.8 萬元，2026 年第一季為新台幣 984.1 萬元。從應用面與法說會新聞推估，大中營收由過去 PC／NB 應用占比較高，逐步轉向伺服器散熱風扇、馬達、電源供應器、BBU、液冷水幫浦、AI PC、一般伺服器、工業與車用等較高功率或高效率電源應用。

Outlook 2025–2028

2025 至 2028 年展望：一、成長動能在於 PC／NB 平台換機、AI PC、一般伺服器與 AI 伺服器電源需求提升，以及資料中心散熱架構升級帶來的風扇馬達、液冷水幫浦、BBU 與交換式電源供應器 MOSFET 需求。公司 2024 年法說相關報導指出，2025 年 PC／NB 預估個位數成長，PC 以外應用期待雙位數成長；2026 年第一季相關報導則顯示 PC 應用占比已降至約 41%，伺服器散熱相關應用占比升至約 36%，顯示產品結構正由 PC 循環轉向非 PC 與伺服器應用。二、新產品／技術方向包括 DrMOS、雙面散熱 Dual-side cooling MOSFET、TOLL、LFPAK 88 等高效能封裝，中壓 Robust 系列，以及車用 AEC-Q101 產品，目標是提高效率、降低導通電阻、改善散熱並切入伺服器、電池管理、電源供應器與車用市場。三、產業趨勢方面，AI 伺服器功耗提升、資料中心高壓直流與電源轉換效率要求提高、車用電子與工業自動化長期滲透，均有利於 MOSFET 與功率半導體需求；同時國際功率半導體大廠調價、8 吋晶圓與封測成本波動，可能使台灣功率元件供應鏈有轉單與漲價機會。四、風險與挑戰包括 PC／NB 需求循環性強、客戶庫存調整、功率元件價格競爭、原物料與委外製造成本上升、產品組合轉型速度不確定、車用與伺服器產品認證週期長、客戶集中但未具名、上游晶圓代工與封測產能／報價變動，以及與國際 IDM 與台灣同業的競爭。2027 至 2028 年具體財務目標公司未公開揭露；因此對 2027 至 2028 的判斷屬研究推估，核心觀察指標為非 PC 營收占比、伺服器散熱與電源應用占比、毛利率能否抵銷成本上升、DrMOS／先進封裝／AEC-Q101 放量速度，以及前十大客戶是否更分散。

Supply Chain

Upstream

未具名晶圓代工、封裝、測試與原料供應商公司財報揭露成本項目包含原料、製造費用、研發材料及測試費，且一般供應商以代號或彙總方式揭露，未公開具名供應商；推估上游包含晶圓代工、封裝測試、導線架／封裝材料與測試服務供應商。
P 公司、A 公司、S 公司等未具名供應商 2025 年財報供應商或應付款資訊以代號揭露，例如 P 公司、A 公司、S 公司等，未揭露是否為台股掛牌公司，因此 stock_id 設為 null。

Downstream

茂達電子股份有限公司 6138 母公司且為關係人銷貨對象；2025 年商品銷售予茂達約新台幣 4,000.8 萬元，2026 年第一季約新台幣 984.1 萬元。茂達為台股上櫃 IC 設計公司。
辛客戶、乙客戶、己客戶、甲客戶等未具名客戶 2025 年財報重要客戶資訊以代號揭露；辛客戶、乙客戶、己客戶收入分別約新台幣 6.35392 億元、4.55552 億元、4.73900 億元，甲客戶未達當年度收入 10%，公司未公開具名，無法判定是否為台股掛牌公司。
個人電腦、伺服器、風扇與馬達、交換式電源供應器、工業控制、車用與電池模組客戶公司官網列示的主要終端應用；相關客戶包含系統廠、電源供應器廠、散熱模組／風扇馬達廠、工業與車用電子供應鏈，但具名客戶未公開揭露。

Competitors

尼克森 3317 台股上櫃 MOSFET／功率半導體同業，與大中在低壓與中高壓 MOSFET 應用市場競爭。
杰力 5299 台股上櫃功率 IC／MOSFET 設計同業，具電源管理 IC 與 MOSFET 整合方案。
富鼎 8261 台股上櫃功率半導體與 MOSFET 同業，為台灣 MOSFET 供應鏈代表公司之一。
全宇昕 6651 台股上櫃 MOSFET／功率半導體同業。
廣閎科 6693 台股上櫃電源管理／功率元件相關 IC 設計同業。
力士 4923 台股上櫃 MOSFET／功率元件同業。
博盛半導體 7712 台股上櫃功率半導體同業。
強茂 2481 台股上市功率元件廠，產品以整流二極體、功率元件與車用／AI 電源供應鏈為主，與大中部分功率元件市場重疊。
德微 3675 台股上櫃功率半導體與二極體／整流元件同業，屬台灣功率元件供應鏈競爭者。
國際 IDM：Infineon、onsemi、Nexperia、Vishay、ROHM、STMicroelectronics 等非台股掛牌或非台灣掛牌公司，為全球功率半導體與 MOSFET 主要競爭者；stock_id 依規則設為 null。

Sources（21）

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.