---
title: "Afternoon sudden change! \"Light\" collectively plummets"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/291382165.md"
description: "On the afternoon of July 1st, the A-share \"light\" related industry chain accelerated its decline. Among them, the optical chip concept sector fell more than 4%, with Guangku Technology, Yuanjie Semiconductor falling more than 7%, and Hengtong Optic-Electric, Jufei, TFC, SANAN and other stocks falling more than 6%. Optical communication"
datetime: "2026-07-01T07:46:25.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/291382165.md)
  - [en](https://longbridge.com/en/news/291382165.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/291382165.md)
generator: "portal-rs"
---

# Afternoon sudden change! "Light" collectively plummets

On the afternoon of July 1st, the A-share "light" related industry chain accelerated its decline. Among them, the optical chip concept sector fell over 4%, with Guangku Technology and Yuanjie Semiconductor dropping over 7%, and Hengtong Optic-Electric, Jufei, TFC, SANAN and several other stocks falling over 6%. Optical communication

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---
> **Disclaimer: This article is for reference only and does not constitute any investment advice.**