---
title: "April 13 Midday Market Review: GEM Index Surges and Pulls Back to Rise 0.39%; Fiberglass Concept Stocks Explode"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/282480640.md"
description: "The market fluctuated and diverged in morning trading, with the three major indices showing mixed performance. Fiberglass concept stocks exploded collectively, with CJS hitting the daily limit to reach a new high, and Grace and SINOMATECH both hitting the daily limit. CPO concept stocks continued to strengthen, with RAISECOM, CEM, TKD, and several other stocks hitting the daily limit. Pork and chicken stocks rose, with Huaying Agricultural and Tech-bank hitting the daily limit. On the downside, gaming stocks adjusted collectively, with Kingnet Network hitting the daily limit down and Bingchuan Network falling by over 10%. At the midday close, the Shanghai Composite Index fell 0.17%, the Shenzhen Component Index rose 0.19%, and the GEM Index rose 0.39%"
datetime: "2026-04-13T03:30:59.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/282480640.md)
  - [en](https://longbridge.com/en/news/282480640.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/282480640.md)
---

# April 13 Midday Market Review: GEM Index Surges and Pulls Back to Rise 0.39%; Fiberglass Concept Stocks Explode

The market fluctuated and diverged in morning trading, with the three major indices showing mixed performance. Fiberglass concept stocks exploded collectively, with CJS hitting the daily limit to reach a new high, and Grace and SINOMATECH both hitting the daily limit. CPO concept stocks continued to strengthen, with RAISECOM, CEM, TKD, and several other stocks hitting the daily limit. Pork and chicken stocks rose, with Huaying Agricultural and Tech-bank hitting the daily limit. On the downside, gaming stocks adjusted collectively, with Kingnet Network hitting the daily limit down and Bingchuan Network falling by over 10%. More stocks declined than advanced, with over 3,700 stocks across the Shanghai, Shenzhen, and Beijing markets trading in the red; the turnover for the morning session reached 1.41 trillion yuan. At the midday close, the Shanghai Composite Index fell 0.17%, the Shenzhen Component Index rose 0.19%, and the GEM Index rose 0.39%.

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