---
title: "300502.SZ (300502.SZ) — Related News"
type: "Symbol"
locale: "en"
url: "https://longbridge.com/en/quote/300502.SZ/news.md"
symbol: "300502.SZ"
name: "300502.SZ"
parent: "https://longbridge.com/en/quote/300502.SZ.md"
datetime: "2026-05-20T02:39:02.526Z"
locales:
  - [en](https://longbridge.com/en/quote/300502.SZ/news.md)
  - [zh-CN](https://longbridge.com/zh-CN/quote/300502.SZ/news.md)
  - [zh-HK](https://longbridge.com/zh-HK/quote/300502.SZ/news.md)
---

# 300502.SZ (300502.SZ) — Related News

### [E Fund Strategic Emerging Industries Stock C (010392): Increased by 208.35% in the past year, with excess returns of 93.06% over the past 3 years, a scale exceeding 2.1 billion yuan, high Sharpe ratio, and awarded a five-star rating](https://longbridge.com/en/news/286989497.md)
*2026-05-20T01:56:33.000Z*
> E Fund Strategic Emerging Industries Stock C (010392) has a one-year return of 208.35%, ranking 10/988 among peers, and 

### [Haifutong Electronic Media Stock A (006081): Up 209.72% in the past year, with an excess return of 66.79% over the past year, high Sharpe ratio, and awarded a five-star rating](https://longbridge.com/en/news/286989485.md)
*2026-05-20T01:56:33.000Z*
> HaiFuTong Electronic Media Stock A (006081) has a return of 209.72% over the past year, ranking 6th out of 988 in its ca

### [In the "Shanghai/Shenzhen Stock Connect," Zhongji Innolight ranks first among the top ten most actively traded stocks in the Shenzhen Stock Connect](https://longbridge.com/en/news/286889212.md)
*2026-05-19T09:39:00.000Z*
> According to data released by the Hong Kong Stock Exchange, Zhongji Innolight ranked first among the top ten most active

### [](https://longbridge.com/en/news/286859633.md)
*2026-05-19T05:46:29.000Z*
> Zhongji Innolight's trading volume exceeded 20 billion yuan, currently down over 3%. TFC's trading volume exceeded 15 bi

### [Artificial intelligence concept stocks weakened, and the ChiNext Artificial Intelligence ETF fell over 3%](https://longbridge.com/en/news/286859583.md)
*2026-05-19T05:38:07.000Z*
> Artificial intelligence concept stocks weakened, with TFC falling over 8%, Eoptolink down over 6%, and Zhongji Innolight

### [Eoptolink: It is expected that the proportion of silicon photonics products will further increase in 2026](https://longbridge.com/en/news/286856320.md)
*2026-05-19T05:06:50.000Z*
> On May 19th, Eoptolink stated on the interactive platform that the company has currently launched 400G and 800G ZR/ZR+ c

### [Over a hundred public funds have conducted research on Eoptolink this year, with the public fund sector "chasing the light."](https://longbridge.com/en/news/286717886.md)
*2026-05-18T05:24:10.000Z*
> As of May 14, 2026, over a hundred public funds have conducted research on the ChiNext stock Eoptolink, indicating the c

### [Eoptolink's net profit attributable to shareholders fluctuated in the first quarter of 2026, drawing attention: Shandong investors focus on exchange rate risk control, while the "dual giants" of optical modules compete in the second half](https://longbridge.com/en/news/286629582.md)
*2026-05-16T02:23:09.000Z*
> Eoptolink attracted investor attention at the 2025 annual shareholders' meeting. Although revenue in the first quarter o

### [Supply and demand imbalance causes special optical fiber prices to soar 10 times; domestic optical fiber and optical modules sell explosively worldwide](https://longbridge.com/en/news/286575803.md)
*2026-05-15T13:39:07.000Z*
> In the first quarter of this year, the price of specialty optical fibers increased tenfold, leading to a supply shortage

### [AI investment "alignment" public offerings focus on the performance realization of computing power hardware](https://longbridge.com/en/news/286492539.md)
*2026-05-15T01:34:07.000Z*
> Wall Street investor Michael Burry bought put options on NVIDIA while increasing positions in Microsoft and Adobe, indic