For the first time since its launch nearly six years ago, the Hang Seng Tech Index is undergoing a major overhaul. The number of constituent stocks will rise from 30 to 50, and Hang Seng Indexes Company will introduce a "dual-track" selection mechanism based on two criteria: market capitalisation and revenue growth.

According to the index compiler, fast-growing technology companies are not necessarily the largest by market value. Forty constituents will be included based on market capitalisation, while ten will be selected according to their revenue growth ranking over the past twelve months.

In addition, the Tech Index will remove its industry requirement, meaning companies with a certain degree of technological exposure across any sector will have the opportunity to be included. Hang Seng Indexes Company noted that companies in every industry now possess technology-related attributes, as technological development has transcended traditional industry boundaries.

The Tech Index will feature six major themes: digital platforms and solutions, artificial intelligence, advanced hardware, robotics and automation, cloud computing, and frontier technology. Among these, frontier technology is a newly added theme.

The review results for the Tech Index will be announced on 20 November, with the revisions taking effect on 7 December this year.

The adjustment to the Tech Index is mainly driven by structural changes among technology companies listed in Hong Kong. Previously, companies in Hong Kong's technology sector were predominantly internet and e-commerce firms, but in recent years the share of digital and intelligent companies has risen markedly. Data from Hang Seng Indexes Company shows that the proportion of intelligent listed companies has climbed from 9% at the end of 2021 to 32.1% as of June 2026.