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3552

同致 Other Electronics As of 2026-06-17 Updated daily after market close

quality needs a look, premium valuation.

1 active signal

Revenue ≥20%

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

Is 同致 a buy? Fundamentals and valuation first

Weak profitability.Operating margin is in the 21th market percentile. Latest quarterly ROE ≈ 0.0%.
Valuation is high.PE is in the 87th market percentile; within its own history, PE is around the 91th percentile.
Foreign investors are net selling.Foreign 20-day net flow ≈ -4.5% of volume (net sell).
Strong revenue growth.Latest monthly revenue YoY ≈ 22.4%, 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 +0.19

BearishNeutralBullish

Institutional rotation, concentration steady — bullish

Institutional rotation, concentration steady — bullish
玉山證券 holds 480 lots
sellers have 133 lots left, ~310 sessions to clear

Window from 2026-01-17 · Price -19% · branches to 2026-06-17· TDCC to 2026-06-12

Largest holder 玉山證券 has accumulated 480 lots since the start (sold 5%), still adding.
Main distributor 國票證券 peaked at 169 lots, has sold 88%, 21 left, paused recently.
TDCC big holders (absolute) >1000-lot holders +0.00pp, mid holders +0, retail +0.76pp — little change.
Foreign hedge-desk net short Net short -362 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

玉山證券中國信託-永康華南永昌-潮州兆豐-新竹元大-鳳中統一-桃園

Distributing

國票證券富邦-八德群益金鼎-嘉義兆豐-南門永豐金-台中宏遠-桃園

Desks

own scale

美商高盛摩根大通港商野村元大證券

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

Branch details Unit: lots

Accumulating

玉山證券 +480

sold 5%· still adding
中國信託-永康 +201

sold 11%
華南永昌-潮州 +100

sold 0%
兆豐-新竹 +98

sold 0%
元大-鳳中 +69

sold 0%
統一-桃園 +66

sold 14%

Distributing

國票證券 21 left

sold 88%· paused recently
富邦-八德 69 left

sold 43%· paused recently
群益金鼎-嘉義 8 left

sold 88%· ~3 sessions to clear
兆豐-南門 13 left

sold 79%· paused recently
永豐金-台中 26 left

sold 57%· paused recently
宏遠-桃園 42 left

sold 29%· paused recently

Desks

美商高盛 -486

hedge desk · will cover
摩根大通 -324

hedge desk · will cover
港商野村 -232

hedge desk · will cover
元大證券 -215

unclassified

Still selling 133 lots ~310 sessions to bottom at most

Recent buy/sell force +323 absorbed / -55 sold buyers slightly ahead

Hedge-desk net short -160 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)

Weak direction: big-holder share fell while retail share rose.

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 22.43%

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

74 historical occurrences (since 2009-01-07)

120 days after: historical avg +19.42%

20-day +3.95%

60-day +10.69%

120-day +19.42%

20-day

60-day

120-day

Win

59.1%

56.1%

66.7%

Sample

Median

+1.5%

+6.93%

+10.08%

Excess

+2.97%

+7.68%

+12.02%

Beat mkt rate

59.1%

54.5%

Over 66 occurrences, 120-day forward avg gained 19.42%, beat the market by 12.02 pts; win rate 66.7%.

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 +47.4%

20-40 +33.8%

40-60 +25.9%

60-80 +1.3%

80-100 +43% Now

PE percentile band	Sample days	240-day avg return	Median	Win rate	Avg excess (vs index)
0-20	58	+47.4%	+45.4%	58.6%	+24.4%
20-40	297	+33.8%	-2.7%	45.8%	+13.2%
40-60	437	+25.9%	-14.1%	45.3%	+11.5%
60-80	845	+1.3%	-21.4%	25.4%	-13.7%
80-100 You are here	1008	+43%	+1.3%	50.6%	+17.3%

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 ≈ 83.83, at the 91.4th 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

+6.5%

Win rate 66% Excess -0.6%

50d

+3.5%

Win rate 35% Excess -2.3%

183d

Now

+17.6%

Win rate 45.5% Excess +8.9%

1077d

60-day momentum down

+27.5%

Win rate 73.9% Excess +16.2%

157d

-1.9%

Win rate 37.6% Excess -8.7%

679d

+22.7%

Win rate 34.9% Excess +5.3%

619d

Currently in “Expensive (own-history top 1/3) × 60-day momentum up”: across 1077 historical days, 120-day forward avg gained 17.6%, win rate 45.5%, beat the market by 8.9%.

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.

18 times historically; 60-day forward avg +17.77%, win rate 55.6%, beating the market by +16.35 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.

54 times historically; 60-day forward avg +5.82%, win rate 47.2%, beating the market by +0.82 pts on average.

What does 同致 do? Company profile

其他電子／車用電子／汽車電子零組件上櫃（櫃買中心）

Overview

3552 對應證券為上櫃普通股「同致」，公司全名為同致電子企業股份有限公司，英文名 TUNG THIH ELECTRONIC CO., LTD.。公司成立於 1979/12/07，掛牌上櫃日期為 2009/01/07，總部位於桃園市蘆竹區南青路1156巷9號。董事長與總經理為陳信忠；2026 年年報並揭露陳聖儒於 2026/03 起兼任集團總經理與人資長。實收資本額約新台幣 9.79 億元，已發行普通股約 97,918,334 股。2025 年（民國114年）合併營收為新台幣 8,461,001 仟元，稅後淨利 65,944 仟元，EPS 0.67 元，2025 年研發費用 972,215 仟元。員工規模：2024 年 1,981 人，2025 年 1,772 人，截至 2026/03/31 為 1,722 人，其中經理人 8 人、技術人員 559 人、一般職員 1,155 人，平均年齡 38.7 歲，平均服務年資 7.1 年。主要股東（2026/04/26）：陳信忠 6.20%、全航投資 3.76%、陳聖儒 3.70%、陳舜榮 3.49%、薩摩亞商金石國際 3.19%、旭航投資 3.05%、同展投資 2.45%、張淑貞 1.51%、協億投資 1.40%、薩摩亞商永運國際 1.33%。公司全球布局包含台灣（1979）、廈門（1990）、美國（2005）、昆山（2007）、日本與加拿大（2023）、印度（2024）；台灣、廈門、昆山、加拿大等據點有銷售或研發功能，廈門、昆山、印度等有製造工廠，美國工廠仍屬籌備中資訊。

Business

同致是車用電子 Tier 1 供應商，專注設計、製造與銷售汽車電子系統產品給全球汽車品牌商，核心價值在提升駕駛安全性與便利性。2025 年年報揭露主要產品收入 100% 來自汽車電子零組件。依 2026/04 法說簡報的 2025 年營收結構，產品別為：Autonomous Parking Sensing 自動停車感測新台幣 57.416 億元、67.86%；Autonomous Parking Controls 自動停車控制 17.488 億元、20.67%；Intelligent Cabin Control 智能座艙控制 5.190 億元、6.13%；Intelligent Cabin Sensing 智能座艙感測 0.691 億元、0.82%；其他 3.825 億元、4.52%。區域別為：中國大陸 66.238 億元、78.29%；印度 8.983 億元、10.62%；歐洲 4.682 億元、5.53%；亞洲不含中國與印度 2.012 億元、2.38%；北美 1.448 億元、1.71%；南美 1.222 億元、1.44%；非洲與澳洲合計極低。產品線包含超聲波感測器、倒車雷達、停車輔助 UPA、自動停車 APA、側翼保護、尾門開啟輔助、車用攝像頭、RVC 倒車顯影、MVC 多視角攝像頭、SVC 側可視、LDWS 車道偏離警示、AVM 360 度環視、MOD 移動物體偵測、77GHz 毫米波雷達、BCM 車身控制模組、KES 免鑰匙啟動、IMMO 防盜，以及融合全自動泊車與遙控停車輔助。商業模式以 OEM/Tier 1 專案開發、車廠認證、量產供貨為主，進入門檻來自車規品質系統、長期客戶認證、研發能力、成本控制與全球在地製造／服務能力。年報顯示 2025 年最大銷貨客戶 A（匿名）占銷貨淨額 34%，2026 年第一季占 27%，代表仍有一定客戶集中度。

Outlook 2025–2028

2025 基準年：同致 2025 年營收 84.61 億元，年減約 1%，稅後淨利 0.659 億元，EPS 0.67 元；毛利率與獲利能力受整體車市需求、價格競爭、成本與費用壓力影響。2026 展望：公司在年報股東報告書表示 2026 年仍將面臨車市與同業競爭更激烈環境，策略包括開發中國以外客戶、透過新設公司深化在地客戶關係、投入新產品研發、節約成本與費用、提高各製造基地產能利用率。中期 2026-2028 成長動能包括：印度市場本地汽車業擴張與印度廠量產爬坡；歐美、日韓與中國以外客戶拓展；ADAS、智慧駕駛、停車輔助、環視影像、毫米波雷達、車身域控、智能座艙與數位鑰匙需求提升；汽車電子在電動化、智慧化、網聯化、軟體定義汽車趨勢下滲透率提高。公司規劃研發與優化項目包括 AVM 環視影像、無主機倒車輔助、車身控制模組、數位鑰匙、高算力自動泊車系統、網域控制站、車門防撞雷達、AVM+物體／行人偵測、超聲波與影像融合全自動泊車、毫米波 LCA、BCM+RPA+IMMO+PEPS、UPA+APA+BSD+AVM 等整合方案。主要風險與挑戰：中國大陸營收占比 78.29%，區域集中度高；中國新能源車與傳統燃油車價格戰可能壓縮零組件 ASP 與毛利；最大匿名客戶占 2025 年銷貨 34%；車廠認證期長且新產品量產時程不確定；Bosch、Valeo 及中國本土競爭者加速布局；供應鏈需面對晶片、PCB、鏡頭模組、雷達零組件、匯率、關稅、地緣政治與在地化生產要求。2027-2028 屬推估區間，若印度與中國以外客戶開發順利、融合泊車與毫米波雷達／域控產品放量，營收結構有望降低中國單一市場依賴；若價格戰延續或主要客戶專案不如預期，獲利修復可能慢於營收成長。

Supply Chain

Upstream

供應商甲（年報匿名） 2025 年主要進貨供應商之一，進貨金額新台幣 489,023 仟元，占進貨淨額 8%；公司未揭露實名，非台股掛牌資訊無法確認。
供應商乙（年報匿名） 2025 年主要進貨供應商之一，進貨金額新台幣 660,119 仟元，占進貨淨額 11%；公司未揭露實名，非台股掛牌資訊無法確認。
車用晶片、感測器、鏡頭、PCB、毫米波雷達與電子零組件供應商同致產品包含超聲波、影像、毫米波、BCM、KES、IMMO 等車用電子系統，上游主要為車規 IC、感測器、攝像頭／光學模組、PCB、被動元件、機構件、連接器與 SMT/組裝材料；年報僅稱與海內外原料供應商長期穩定合作，未逐一揭露實名。

Downstream

客戶A（年報匿名） 2025 年最大銷貨客戶，銷貨金額新台幣 2,906,535 仟元，占銷貨淨額 34%；2026 年第一季占 27%；公司未揭露實名，推定為汽車品牌商或其供應鏈客戶。
全球汽車品牌商／整車廠 OEM 公司法說自稱為 Tier 1 supplier，設計、製造、銷售汽車電子系統給全球 automaker；下游應用為新車原廠配套與車用安全／便利配備。
中國大陸汽車市場客戶 2025 年中國大陸營收占 78.29%，為核心下游市場；客戶實名未揭露，包含當地整車廠或其配套供應鏈。
印度汽車市場客戶 2025 年印度營收占 10.62%，公司已設印度製造據點，為 2026-2028 重要成長市場；客戶實名未揭露。

Competitors

Robert Bosch GmbH（博世）年報列為國外競爭對手；德國未上市集團，產品涵蓋車用電子、動力、跨域運算與 ADAS。
Valeo（法雷奧）年報列為國外競爭對手；法國上市公司但非台股，具 OEM 車用電子、感測與駕駛輔助系統能力。
Hikvision（海康威視）年報列為自動泊車單元與 360 全景攝像頭等領域競爭者；中國上市公司，非台股掛牌。
Desay SV（德賽西威）年報列為自動泊車單元競爭者；中國上市公司，非台股掛牌。
Longhorn（豪恩汽電）年報列為倒車雷達與 360 全景攝像頭競爭者；中國公司，非台股掛牌。
OFILM（歐菲光）年報列為 360 全景攝像頭競爭者；中國上市公司，非台股掛牌。
怡利電 2497 台股上櫃車用電子廠，產品包含 HUD、駕駛安全防護、車載影音、360 度 AVM 與 ADAS 等，屬台股相鄰競爭／替代標的，未必與同致所有產品直接重疊。
為升 2231 台股上市車用電子廠，布局 TPMS 與 24/77/79GHz 毫米波雷達，可用於 BSD、RCTA、DOW、LCA、FCW 等，與同致毫米波與 ADAS 感測方向相鄰。

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.