Serenity Stock Choke · A-share Bottleneck Stock Selection Framework
"Trace upstream along the industrial chain to find that 'key node where if the supply is cut off, the trillion-yuan industry will quake' — the small-cap stock at that node is the next critical hit opportunity."
This Skill is based on the supply chain bottleneck theory of the Reddit legend Serenity (@aleabitoreddit), adapted to the A-share market to form a universal sector analysis framework.
Core Methodology
Strait of Hormuz Analogy
"The Strait of Hormuz is the throat of global oil. Once blocked, everyone is affected. But if you hold shares in the Strait of Hormuz, you hold pricing power."
Translated to A-shares: Which link is the "Hormuz" of a major sector? Which A-share company controls it?
Three-step Core Logic
① AI大爆发 / 政策驱动 / 技术跃迁
↓
② 上游硬件/原材料需求暴增，供应链某些环节产能跟不上
↓
③ 瓶颈环节掌握定价权 → 其中小盘股弹性最大Serenity Original Track Record (US Stocks)
| Target | Code | Increase | Choke Point Positioning | |--------|------|----------|------------------------| | AXT Inc | AXTI.US | +525% (YTD) | One of the world's three InP substrate manufacturers | | Applied Optoelectronics | AAOI.US | +348% (YTD) | Main supplier of CPO lasers | | Sivers Semiconductors | SIVE.SE | — | CPO lasers + silicon photonics | | X-FAB | XFAB.EU | — | Specialty process wafer foundry |
Six-Step Analysis Chain
| Step | Core Question | Output | |------|---------------|--------| | 1️⃣ Position sector cycle | Demand surge / technological leap / supply constraint? | Stage of the sector | | 2️⃣ Trace supply chain | Where is the bottleneck? | Supply chain hierarchy map | | 3️⃣ Find A-share targets | Which companies are stuck at this node? | Four-dimensional signal map | | 4️⃣ Authenticity screening | Which are the "real bottlenecks", which are hype? | Screening conclusions | | 5️⃣ Long-short confirmation | Long signals vs short signals? | Signal comparison table | | 6️⃣ Output report | Including operation suggestions + risk warnings | Structured report |
Applicable Sector Examples
Power, optical modules/CPO, semiconductor equipment, military industry, new energy vehicles, medical devices, innovative drugs, pesticides, OLED... any A-share sector can be analyzed.
| Sector | Choke Point Node | Representative Targets | |--------|-----------------|-----------------------| | Power | UHV converter transformer / intelligent dispatch | Guodian Nari (600406), Tebian Electric Apparatus (600089) | | Optical Modules/CPO | EAM laser / MPO connector | Yuanjie Technology (688498), Juguang Technology (688167) | | Semiconductor Equipment | Thin film deposition / core parts of lithography machines | Zhongwei Company (688012), North Huachuang (002371) | | Military Industry | Special alloys / high-end composite materials | Zhongjian Technology (300777), Guangwei Composite (300699) | | New Energy Vehicles | Carbon nanotube conductive agent / solid-state battery materials | Tiannai Technology (688116), Dangsheng Technology (300073) |
Quick Start
Trigger Method
Say directly in WorkBuddy:
用 serenity-stock-choke 分析 [板块名]
例：用 serenity-stock-choke 分析军工板块或者：
分析 [产业链] 的卡脖子机会
找 [赛道] 的瓶颈环节
帮我用 Serenity 框架分析 [板块]Data Tools
- neodata-financial-search: Sector market quotes, research reports, capital flow queries
- westock-data: Chip distribution, block trades, margin financing and securities lending, institutional ratings
File Structure
serenity-stock-choke/
├── SKILL.md # 主提示词（六步推理链路 + 工具箱）
├── README.md # 本文件
└── references/
└── user_guide.md # 使用指南 + 常见板块参考表Risk Disclaimer
- This Skill is for reference only and does not constitute investment advice
- Small-cap stocks are highly volatile, daily swings of 20-30% are not uncommon
- A-shares are significantly affected by policies, closely monitor regulatory developments
- Supply chain information authenticity is difficult to verify, independent validation is required
- Logical verification may take 1-3 years, patience is necessary
References
- Original Serenity Skill (English)
- semiconstocks.com Tracker
- Singularity Research Fund
- Zhihu: Detailed Explanation of Serenity Choke Point Theory