研究背景 · 不构成推荐
ISRG
Descriptive positioning only. `stance` says whether a company's business is exposed to a layer, never whether to buy it. Layers with no exposure are not recommendations to add any.
L19 · 物理 AI
分层是 XingAI 的分类。申报人没有给这一层命名。
相对本层的定位:中性。描述的是业务,不构成交易建议。
需求为什么传到这一层
在物理世界里完成「感知 → 推理 → 动作」。这条链是:传感器 → 摄像头/激光雷达 → 边缘加速芯片 → 模型 → 机器人操作系统 → 执行器 → 电机 → 电池 —— 它同时继承了 AI 供应链和工业供应链。
上下游瓶颈
执行器和电池能量密度按硬件的节奏改进,而不是软件的节奏。这里的限制因素很少是模型。
Surgical robotics, but surgeon-controlled rather than autonomous — robotics without the autonomy this layer describes.
同一层公司(字母序,不是排名)
缓存快照 2026-10-05。下面的申报日期才是来源日期,不是这个快照。
公开的 13F 行
Rows below are public SEC Form 13F-HR filings, reported by the filing entity for the period shown and filed later — they are never current holdings. Form 13F covers long US equity positions only: it excludes short positions, cash, non-US holdings and most derivatives, and a reported position may have been sold since. Assigning a ticker to a layer is XingAI's classification, not the filer's. Nothing here is a recommendation, and an institution reporting a position is not a reason to take one.
ARK Investment Management
Period 2026-06-30 · filed 2026-08-14
https://www.sec.gov/Archives/edgar/data/1697748/000110465926096910/primary_doc.xmlhttps://www.sec.gov/Archives/edgar/data/1697748/000110465926096910/infotable.xmlBridgewater Associates
Period 2026-06-30 · filed 2026-08-14
https://www.sec.gov/Archives/edgar/data/1350694/000135069426000003/primary_doc.xmlhttps://www.sec.gov/Archives/edgar/data/1350694/000135069426000003/infotable.xmlCoatue Management
Period 2026-06-30 · filed 2026-08-14
https://www.sec.gov/Archives/edgar/data/1135730/000091957426005478/primary_doc.xmlhttps://www.sec.gov/Archives/edgar/data/1135730/000091957426005478/infotable.xml
本页不回答什么
估值、目标价,以及何时买入或卖出。缓存里没有这些,本页也不会猜。
研究问题
- 按 XingAI 的分类,这家公司的主营业务落在哪一层?
- 哪些公开的 13F-HR 行引用了这只代码,何时提交?
- 同一层还有哪些上市公司(按字母序,不是排名)?