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3306

鼎天 Communications & Internet As of 2026-06-17 Updated daily after market close

quality needs a look, fair valuation.

1 active signal
Revenue ≥20%
This page refreshes daily after the close. Add 鼎天 to your watchlist to track signal changes on your next visit.
Valuation 70Quality 27Growth 70Momentum 43Chips 82

Is 鼎天 a buy? Fundamentals and valuation first

  • Weak profitability.Operating margin is in the 28th market percentile. Latest quarterly ROE ≈ 0.2%.

  • Valuation is neutral.PE is in the 49th market percentile; within its own history, PE is around the 45th percentile.

  • Foreign investors are net buying.Foreign 20-day net flow ≈ 6.4% of volume (net buy).

  • Strong revenue growth.Latest monthly revenue YoY ≈ 26.0%, 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

Neutral +0.11
BearishNeutralBullish

Institutional rotation, concentration steady — neutral

  • Institutional rotation, concentration steady — neutral
  • 華南永昌-斗六 holds 136 lots
  • sellers have 160 lots left, ~115 sessions to clear

Window from 2026-01-17 · Price -4% · branches to 2026-06-17· TDCC to 2026-06-12

  • Largest holder 華南永昌-斗六 has accumulated 136 lots since the start (sold 4%), still adding.
  • Main distributor 國泰-敦南 peaked at 103 lots, has sold 62%, 39 left, ~28 sessions to clear at the recent pace.
  • TDCC big holders (absolute) >1000-lot holders +0.00pp, mid holders -1, retail +1.21pp — drifting down to retail.
  • Foreign hedge-desk net short Net short -737 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-斗六凱基-站前兆豐-新竹富邦-台中富邦-新店永豐金-嘉義
Distributing
國泰-敦南華南永昌-鳳山富邦-北港群益金鼎-彰化永豐金-苓雅元大-大里
Desks
own scale
新光新加坡商瑞銀凱基-台北統一-台中
Price Accumulating & Distributing share one scale (comparable); Desks is independent. Zero is the baseline
Branch details Unit: lots

Accumulating

  • 華南永昌-斗六 +136
    sold 4%· still adding
  • 凱基-站前 +121
    sold 2%
  • 兆豐-新竹 +90
    sold 2%
  • 富邦-台中 +77
    sold 0%· still adding
  • 富邦-新店 +73
    sold 0%
  • 永豐金-嘉義 +68
    sold 6%

Distributing

  • 國泰-敦南 39 left
    sold 62%· ~28 sessions to clear
  • 華南永昌-鳳山 43 left
    sold 43%· paused recently
  • 富邦-北港 36 left
    sold 45%· ~12 sessions to clear
  • 群益金鼎-彰化 44 left
    sold 32%· paused recently
  • 永豐金-苓雅 36 left
    sold 29%· paused recently
  • 元大-大里 18 left
    sold 60%· paused recently

Desks

  • 新光 -250
    unclassified
  • 新加坡商瑞銀 -189
    hedge desk · will cover
  • 凱基-台北 -187
    day-trade · selling pressure
  • 統一-台中 -125
    unclassified
Still selling 160 lots ~115 sessions to bottom at most
Recent buy/sell force +441 absorbed / -97 sold buyers slightly ahead
Hedge-desk net short -447 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 26.01%

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

93 historical occurrences (since 2007-04-23)
Average forward return after Monthly revenue YoY ≥ 20% (from filing deadline)。20-day: Win 46.8%, Sample 79, Median -0.72%, Excess +1.08%, Beat mkt rate 41.8%；60-day: Win 38%, Sample 79, Median -4.91%, Excess -2.4%, Beat mkt rate 30.4%；120-day: Win 39.5%, Sample 76, Median -9.03%, Excess -6.97%, Beat mkt rate 30.3%

120 days after: historical avg -3.56%

20-day +1.95%
60-day +0.45%
120-day -3.56%
20-day
60-day
120-day
Win
46.8%
38%
39.5%
Sample
79
79
76
Median
-0.72%
-4.91%
-9.03%
Excess
+1.08%
-2.4%
-6.97%
Beat mkt rate
41.8%
30.4%
30.3%

Over 76 occurrences, 120-day forward avg declined 3.56%, lagged the market by 6.97 pts; win rate 39.5%.

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)
0-20 113+19.6% +17.7% 92% -56.5%
20-40 428+30% +3.4% 52.8% +16.1%
40-60 You are here460+11.3% +5% 53.5% -4.5%
60-80 839+21.4% +4.4% 57.2% +10.2%
80-100 885+16.7% +8.1% 55.6% -4.7%

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 ≈ 21.82, at the 45.2th percentile of its own history (40-60 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
+2.5%
Win rate 22.8% Excess -6.1%
79d
+1.5%
Win rate 45.2% Excess -9%
387d
+13%
Win rate 56.8% Excess +4.5%
1022d
60-day momentum down
+19.6%
Win rate 63.4% Excess +6.2%
369d
Now
+0.5%
Win rate 39.3% Excess -6.5%
506d
+14.3%
Win rate 68.4% Excess +4.6%
478d

Currently in “Mid × 60-day momentum down”: across 506 historical days, 120-day forward avg gained 0.5%, win rate 39.3%, lagged the market by 6.5%.

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 +19.83%, win rate 57.9%, beating the market by +14.73 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.

27 times historically; 60-day forward avg +4.4%, win rate 34.6%, beating the market by +0.54 pts on average.

What does 鼎天 do? Company profile

通信網路業 櫃買中心上櫃

Overview

鼎天國際股份有限公司，英文簡稱 RoyalTek，為台灣上櫃普通股，股票代號 3306，產業別為通信網路業。公司於 1997-12-23 設立，2005-07-05 上櫃，總部位於桃園市龜山區文化二路40號8樓，統一編號 16433708，實收資本額新台幣 506,077,020 元，已發行普通股 50,607,702 股。公司主要營業項目為電信管制射頻器材製造、國內外廠商產品經銷及進出口貿易，公開資料列示主要業務為衛星定位系統 GPS 主機板與 GPS 資訊應用產品。2025 年股東會年報顯示，鼎天為廣達集團成員，廣達電腦為母公司及最終控制者，持有普通股 18,603,598 股、持股 36.76%。114年4月13日前十大股東包括廣達電腦 36.76%、今謙企業 4.38%、倚天酷碁 2.01%、李明崇 1.38%、詹桂英 1.17%、花旗託管柏克萊資本證券有限公司投資專戶 0.88%、柳金堂 0.86%、達啟投資 0.81%、賴政宏 0.59%、匯豐受託保管摩根士坦利國際有限公司投資專戶 0.43%。董事長資料在不同來源有時點差異：公司年報揭露 2024-06-12 起由法人董事達啟投資指派蘇俊豪代表行使董事長職務；2026 年公開資訊與新聞顯示總經理於 2026-04-29 異動，由蕭明昌接任。2025 年股東會年報截至 2025-04-30 員工人數為 127 人，其中經理人 38 人、間接員工 89 人、直接員工 0 人，顯示公司以研發、銷售與委外生產管理為主。

Business

鼎天定位為 GPS、衛星導航、無線通訊、位置感知、車用雷達、影像與雲端 AI 視覺解決方案及 ODM/OEM 業務公司。公司網站列示產品包括 REB-1010A 衛星導航系統、雷達盲點偵測系統、車用導航影音多媒體系統、疲勞駕駛偵測預防系統、360度環景系統、雲端方案、摩托車雷達盲點偵測與前向偵測系統、大型車內輪差雷達盲點偵測、大型車雷達盲點偵測、雷達腳踢尾門與雷達座艙監測系統。2024 年股東會年報揭露 2024 年營業比重為接收機 97%、主機板與其他 3%；2024 年合併財報揭露產品別外部收入為接收器新台幣 951,244 千元、其他 28,819 千元，合計 980,063 千元；2025 年合併財報揭露產品別外部收入為接收器新台幣 1,053,078 千元、其他 29,805 千元，合計 1,082,883 千元。2025Q1 法說簡報揭露 GPS 接收機收入 210,166 千元、占 95%，其他 10,596 千元、占 5%。公司商業模式包含自有研發設計、GPS/車載與特殊應用產品 ODM/OEM、委外製造、零組件採購與產品出貨；年報明示公司以研發與銷售為主，生產委外，並希望透過廣達策略聯盟與廣達推薦工廠取得規模經濟、降低加工成本、提升品質及原物料議價能力。終端應用包括車用導航、車載影音、行車紀錄、ADAS/環景/駕駛監測、商用車安全輔助、GPS 相關 ODM 特殊應用與內建 GPS 功能之寵物項圈。客戶名稱多以甲公司等代號揭露；2025 年合併財報顯示主要客戶甲公司達合併營收 10% 以上，2025 年收入 1,026,430 千元，占當年營收絕大部分；2024 年應收帳款 99% 由一家客戶組成，2025 年仍為 99%，顯示客戶集中度極高。地區別收入方面，2025 年以美國 1,030,243 千元為主，其次以色列 34,014 千元、日本 11,046 千元、台灣 3,362 千元與其他國家 4,218 千元。

Outlook 2025–2028

2025-2028 年展望以質化判斷為主，因公司公開法說簡報僅列「2025年展望」頁但未提供量化中長期財測。成長動能包括：一、GPS 設備與位置感知應用仍受物聯網、戶外/寵物定位、安全性、緊急應變、無人機與資料分析需求支撐，年報引用市場報告預估 GPS 設備市場至 2028 年仍有穩定成長；二、車聯網、ADAS、車用雷達、駕駛監測、環景與商用車安全輔助裝置滲透率提升，年報指出車上連網與安全輔助裝置成為標準配備的機會大增；三、公司自 2024-2025 年持續將產品重心由傳統高單價車機、PND 導航轉向 GPS 相關 ODM/OEM 特殊應用，且年報稱 ODM 新客戶新產品已穩定量產、毛利較佳；四、廣達集團資源可能帶來委外生產、海外產線、採購與品質管理支援。新產品與技術方向包括車裝導航機及行車紀錄器改良、車用雷達、駕駛監測器、環景系統、GPS 相關 ODM/OEM 特殊應用多元化、內建 GPS 功能之寵物項圈第二代與主機板功能提升；2025 年預計研發費用約新台幣 186,500 千元。主要挑戰包括：一、客戶集中度極高，2025 年主要客戶甲公司貢獻 1,026,430 千元，應收帳款 99% 由一家客戶組成，訂單變動會大幅影響營收與營運資金；二、傳統車機產品因大客戶逐漸淡出市場、車用市場競爭激烈而承壓；三、汽車電子前裝市場受車廠封閉體系、認證週期與成本限制，台灣廠商較難直接切入，後裝或 ODM 專案的不確定性較高；四、委外生產及海外產線雖可分散風險，但仍面臨供應鏈、品質、交期、地緣與匯率風險；五、主要原料包含 GPS 晶片、藍芽晶片、液晶螢幕、面板、PCB、塑膠、金屬與線纜等，若半導體或關鍵零組件供需與價格波動，可能影響毛利與交期。

Supply Chain

Upstream
  • 廣達電腦股份有限公司 2382 母公司及最終控制者，持股 36.76%；年報指出鼎天希望透過與廣達策略聯盟，將委外代工移至廣達推薦工廠以達規模經濟，並利用廣達採購議價能力；財報亦揭露與廣達有關係人進貨、其他應付款與預付款往來。
  • 廣明光電股份有限公司 6188 同屬廣達集團關係人；2024 與 2025 合併財報揭露鼎天對廣明光電有預付款項或應付帳款，並與海外代工產線架設相關，屬可查證關係人供應鏈往來。
  • 達豐(重慶)電腦有限公司 廣達集團中國關係企業，非台股掛牌；2024、2025 合併財報列為其他關係人，鼎天向其進貨並有預付款項，可能涉及海外代工或製造支援。
  • 達偉(上海)物流倉儲有限公司 廣達集團中國關係企業，非台股掛牌；2024 合併財報列示其他關係人與其他應付款，功能偏物流倉儲支援。
  • GPS晶片、藍芽晶片、液晶螢幕、TFT面板、PCB、塑膠製品、金屬沖壓、電線電纜供應商 年報揭露主要原料為 GPS 晶片、藍芽晶片及液晶螢幕，產業上游包括塑膠製品加工、金屬沖壓、電子零件、電線電纜、TFT 面板、電路板印刷等；未揭露具名供應商，故 stock_id 設為 null。
Downstream
  • 甲公司 2025 合併財報揭露之主要客戶，達合併營收 10% 以上，2025 年收入 1,026,430 千元；公司未揭露正式名稱，可能為海外 GPS 相關 ODM 客戶。
  • 日本車裝導航相關客戶 年報指出公司曾取得日本車裝導航機訂單，且日本及以色列大客戶逐漸淡出車機導航相關市場；客戶名稱未揭露，stock_id 設為 null。
  • 以色列客戶 財報地區別收入列示以色列市場，年報提及以色列大客戶逐漸淡出車機導航相關市場；客戶名稱未揭露，stock_id 設為 null。
  • 車廠、通路商、經銷商、導航設備後裝業者 年報產業上下游圖列示下游為車廠、通路商、經銷商與導航設備後裝業者；未指名具體公司。

Competitors

Sources（15）

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.