---
title: "Hangzhou Diagens joins Hang Seng Composite Index constituents from Sept. 7, 2026"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/296714863.md"
description: "Hangzhou Diagens Biotechnology will be added to the Hang Seng Composite Index on Sept. 7, 2026, and to the Hang Seng Biotech and AI Theme Indices on Sept. 14, 2026. This inclusion meets Stock Connect eligibility, expanding access for mainland investors. The move is expected to broaden index-fund ownership, enhance liquidity, diversify the investor base, and improve resilience against market risks."
datetime: "2026-08-24T00:02:28.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/296714863.md)
  - [en](https://longbridge.com/en/news/296714863.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/296714863.md)
generator: "portal-rs"
---

# Hangzhou Diagens joins Hang Seng Composite Index constituents from Sept. 7, 2026

-   Hangzhou Diagens Biotechnology will be added to the Hang Seng Composite Index effective Sept. 7, 2026. \* Inclusion also covers the Hang Seng Biotech Index, effective Sept. 14, 2026. \* Added to the Hang Seng SCHK Artificial Intelligence Theme Index, effective Sept. 14, 2026. \* Selection meets eligibility criteria for Southbound Trading under Stock Connect, expanding access to mainland China investors. \* Move expected to broaden index-fund ownership, lift liquidity, diversify the investor base, improve resilience against market risks. Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Hangzhou Diagens Biotechnology Co. Ltd. published the original content used to generate this news brief via IIS, the regulatory disclosure system operated by the Hong Kong Stock Exchange (HKex) (Ref. ID: HKEX-EPS-20260824-12295457), on August 24, 2026, and is solely responsible for the information contained therein. © Copyright 2026 - Public Technologies (PUBT)

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