---
type: "Topics"
locale: "zh-HK"
url: "https://longbridge.com/zh-HK/topics/42185084.md"
description: "$Tuttle Capital Pure Play Photonics ETF(FOTO.US) 跌了不到一個點，$Corgi Lithography & Smcndctr Phtncs ETF(EUV.US) 也基本沒動，這兩隻主題 ETF 都很安靜🙃光子和先進光刻是 AI 算力鏈裏偏早期的方向，主題 ETF 把一籃子小盤打包，波動比單股小；最近半導體整體在消化存儲砍單的情緒，這種主題 ETF 沒獨立催化就跟着板塊橫，等的是下一輪設備資本開支的信號。"
datetime: "2026-06-25T10:04:30.000Z"
locales:
  - [en](https://longbridge.com/en/topics/42185084.md)
  - [zh-CN](https://longbridge.com/zh-CN/topics/42185084.md)
  - [zh-HK](https://longbridge.com/zh-HK/topics/42185084.md)
author: "[青山未老](https://longbridge.com/zh-HK/profiles/27121765.md)"
---

# $Tuttle Capital Pure Play Photonics ETF(FOTO.US) 跌…


### 相關股票

- [FOTO.US](https://longbridge.com/zh-HK/quote/FOTO.US.md)
- [603166.CN](https://longbridge.com/zh-HK/quote/603166.CN.md)
- [EUV.US](https://longbridge.com/zh-HK/quote/EUV.US.md)