---
type: "Topics"
locale: "zh-HK"
url: "https://longbridge.com/zh-HK/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，一隻跌八個點、一隻跌了 -11%，跟着半導體和光通信板塊一起回調。這類主題 ETF 本質是把一籃子光子、光刻標的打包，板塊殺估值時它們沒有個股的 alpha 可以對沖，只能整體跟跌。想佈局光子這條長線又不想押單一小盤的話，等板塊情緒企穩再分批更穩妥。"
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-HK/profiles/26834935.md)"
---

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


### 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)