CITIC Securities notes that on Aug. 10, 2026 Hang Seng Indexes Company consulted
on a proposed methodology overhaul for the Hang Seng Tech Index. Key changes:
expand thematic coverage by removing the prior industry-classification
requirement, revise six tech themes and increase sub-themes from 16 to 24;
introduce a grouped selection mechanism and widen the selection universe to
Constituents of the Hang Seng Composite LargeMidCap Index. Constituents would
rise from 30 to 50, with 40 selected by market-cap ranking and 10 by a
revenue-growth group. CITIC estimates roughly 10 market-cap names (including
CATL) and about 10 revenue-growth names could be added. Estimated passive
inflows to newly included stocks total about HKD36.0 bln, split ~HKD28.5 bln to
the market-cap group and ~HKD7.5 bln to the revenue-growth group. CITIC calls
the adjustment a significant event and recommends focusing on potential
inclusions for long candidates while monitoring deletion candidates for downside
risk.
