---
type: "Topics"
locale: "zh-CN"
url: "https://longbridge.com/zh-CN/topics/42419516.md"
description: "$Tuttle Capital Pure Play Photonics ETF(FOTO.US)、$Corgi Lithography & Smcndctr Phtncs ETF(EUV.US) 今天都跌得不少，一只跌八个点、一只跌了 -11%，跟着半导体和光通信板块一起回调。这类主题 ETF 本质是把一篮子光子、光刻标的打包，板块杀估值时它们没有个股的 alpha 可以对冲，只能整体跟跌。想布局光子这条长线又不想押单一小盘的话，等板块情绪企稳再分批更稳妥。"
datetime: "2026-07-03T10:51:28.000Z"
locales:
  - [en](https://longbridge.com/en/topics/42419516.md)
  - [zh-CN](https://longbridge.com/zh-CN/topics/42419516.md)
  - [zh-HK](https://longbridge.com/zh-HK/topics/42419516.md)
author: "[凉风说财经](https://longbridge.com/zh-CN/profiles/26834935.md)"
---

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


### 相关股票

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