TL;DR: The colored badges at the top of every stock page (NVDA 5-Layer Cake / L3 Infrastructure / 5G / Apple Concept / Hon Hai Group, etc.) are Concept / Conglomerate tags, threading together stocks that share a theme. Since v3.85.26, all 50 tags are fully translated into 3 languages (zh-TW / en / ja-JP); switching the UI locale changes the display name automatically.
Concepts
Two tag types
| Type | Purpose | Color | Count |
|---|---|---|---|
| Concept | Sector themes / applications / trends | Amber | 40 |
| Conglomerate | Parent-group affiliation | Violet | 10 |
Click any tag → goes to its index page listing every stock under that theme / group.
Concept tags (40)
Grouped:
| Cluster | Tags | Example stocks |
|---|---|---|
| NVDA 5-Layer Cake | L1 Energy / L2 Chips / L3 Infrastructure / L4 Models / L5 Applications | Entire AI supply chain |
| AI hardware | AI Server / AI ODM / AI PC / ASIC / CoWoS / Thermal / High-speed PCB | Quanta (2382) / Wistron (3231)… |
| Semiconductors | Silicon Photonics / HDI / Memory / Display Panel / IC Substrate / Semi. Equipment | UMC (2303) / PSMC (6770)… |
| Communications | 5G / Wi-Fi 7 / LEO Satellite | Chunghwa Telecom (2412) / Sercomm (6285)… |
| Apple supply chain | Apple Concept / Apple Vision Pro / Wireless Earbud / AR/VR | Largan (3008) / Hon Hai (2317)… |
| Automotive | Electric Vehicle / Automotive Electronics / LiDAR / Battery | Chroma (2360) / Sunshine PV (2231)… |
| Energy | Solar / Offshore Wind / Power Grid | Chong Hong (1513) / Hwa Chen (1519)… |
| Other | ESG / Robotics / Industry 4.0 / Defense / Capacitor / Resistor / PCB | Yageo (2327)… |
Conglomerate tags (10)
| Group | zh-TW | Example members |
|---|---|---|
| Hon Hai Group | 鴻海集團 | Hon Hai (2317) / FoxLink (2354) / FoxConn… |
| Formosa Plastics Group | 台塑四寶 | Formosa Plastics / Nan Ya / Formosa Chemicals / Formosa Petrochemical |
| Uni-President Group | 統一集團 | Uni-President (1216) / President Chain Store (2912)… |
| Fubon Group | 富邦集團 | Fubon FHC (2881) / Taiwan Mobile (3045)… |
| MediaTek Group | 聯發科集團 | MediaTek (2454) / Airoha… |
| Quanta Group | 廣達集團 | Quanta (2382) / Cloud Network… |
| TSMC Group | 台積電集團 | TSMC (2330) / GUC (3443) / VIS (5347)… |
| ASUS Group | 華碩集團 | ASUS (2357) / Pegatron (4938)… |
| Cathay Financial Group | 國泰金集團 | Cathay Holdings (2882) / Cathay Life… |
| ASE Group | 日月光集團 | ASE (3711) / SPIL… |
How to use
Find peer stocks
Watching AI server plays? Click the amber "AI Server" chip on any stock that carries it → jumps to the AI Server tag page listing all N stocks under that theme + sector-level performance.
Conglomerate rotation
Conglomerate tags chain every subsidiary together. Bullish on the Hon Hai group? Hon Hai Group tag → FoxLink / FIH Mobile / Foxconn Industrial Internet… all at once. Group rotation typically moves in concert.
Multi-tag stocks
A single stock can carry many tags. Example: Hon Hai (2317) is simultaneously:
- Concept: NVDA 5-Layer Cake / L3 Infrastructure / AI Server / Apple Concept / Apple Vision Pro
- Conglomerate: Hon Hai Group
→ Upstream + downstream + Apple supply chain + its own group — full coverage.
Tri-lingual i18n
Since v3.85.26, all 50 tags carry official translations:
| zh-TW | en | ja-JP |
|---|---|---|
| NVDA 五層蛋糕 | NVDA 5-Layer Cake | NVDA 5層ケーキ |
| L3 基礎設施 | L3 Infrastructure | L3 インフラ |
| 鴻海集團 | Hon Hai Group | 鴻海グループ |
| 半導體設備 | Semiconductor Equipment | 半導体製造装置 |
Switching the UI language updates every badge — and the tag index pages translate along.
FAQ
Q1: How does a stock get its tags?
Admin manually curates and maintains the stock_tag_map table. New tags are added after researchers / editors evaluate the sector trend and identify representative members.
Q2: What can I do on a tag's index page?
The tag page lets you:
- See all stocks under the tag
- Sort by market cap / change / institutional flow
- Compare the tag's aggregate performance vs the market
Q3: Why do some stocks have no tags?
Recent listings, illiquid names, or stocks in non-mainstream sectors may not carry concept tags. Conglomerate tags only cover the 10 major groups.
Q4: Can I suggest a new tag?
Yes — through Contact / Support. Emerging themes (robotics, quantum computing, etc.) are reviewed periodically.