---
title: "Top 5 HK Stock Gainers/Losers (>100B) (5.21)"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/287182981.md"
description: "SERES(09927) rose 5.09%, with a trading turnover 218.1 Million HKD, and a year-to-date fell 33.9%. OMNIVISION(00501) rose 5%, with a trading turnover 239.8 Million HKD, and a year-to-date fell 9.7%. BIREN TECH(06082) fell 7.69%, with a trading turnover 339.2 Million HKD, and a year-to-date rose 138.8%. YOFC(06869) fell 6.84%, with a trading turnover 3.4 Billion HKD, and a year-to-date rose 316.2%."
datetime: "2026-05-21T08:30:41.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/287182981.md)
  - [en](https://longbridge.com/en/news/287182981.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/287182981.md)
---

# Top 5 HK Stock Gainers/Losers (>100B) (5.21)

Hang Seng Index has fell 1.03%, with a year-to-date fell 1%; Hang Seng TECH Index has fell 2.15%, with a year-to-date fell 13.5%.

SERES(09927) rose 5.09%, with a trading turnover 218.1 Million HKD, and a year-to-date fell 33.9%.

OMNIVISION(00501) rose 5%, with a trading turnover 239.8 Million HKD, and a year-to-date fell 9.7%.

BIREN TECH(06082) fell 7.69%, with a trading turnover 339.2 Million HKD, and a year-to-date rose 138.8%.

YOFC(06869) fell 6.84%, with a trading turnover 3.4 Billion HKD, and a year-to-date rose 316.2%.

### Related Stocks

- [09927.HK](https://longbridge.com/en/quote/09927.HK.md)
- [00501.HK](https://longbridge.com/en/quote/00501.HK.md)
- [09868.HK](https://longbridge.com/en/quote/09868.HK.md)
- [09926.HK](https://longbridge.com/en/quote/09926.HK.md)
- [01801.HK](https://longbridge.com/en/quote/01801.HK.md)
- [06082.HK](https://longbridge.com/en/quote/06082.HK.md)
- [06869.HK](https://longbridge.com/en/quote/06869.HK.md)
- [09888.HK](https://longbridge.com/en/quote/09888.HK.md)
- [01024.HK](https://longbridge.com/en/quote/01024.HK.md)
- [06613.HK](https://longbridge.com/en/quote/06613.HK.md)

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