---
type: "Topics"
locale: "en"
url: "https://longbridge.com/en/topics/42117171.md"
description: "$Tuttle Capital Pure Play Photonics ETF(FOTO.US) isn't it? How did the top holding become IPG? Isn't this a small-cap stock?"
datetime: "2026-06-23T15:37:03.000Z"
locales:
  - [en](https://longbridge.com/en/topics/42117171.md)
  - [zh-CN](https://longbridge.com/zh-CN/topics/42117171.md)
  - [zh-HK](https://longbridge.com/zh-HK/topics/42117171.md)
author: "[脆皮大学牲](https://longbridge.com/en/profiles/24317474.md)"
---

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


### Related Stocks

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