Hang Seng Index to add 3 new members in June rebalance

Hang Seng Indexes Company announced a rebalancing of its benchmark Hang Seng Index, which will grow to 93 constituents with the inclusion of three new companies effective June 8, 2026.

The additions, which follow the index provider’s quarterly review for the period ended March 31, 2026, are expected to draw significant attention from investors who track the city's main equity gauge. The changes will be implemented after the market closes on Friday, June 5. The move comes as traders watch for cues from U.S. monetary policy, with the 10-year Treasury yield holding as a key indicator for global risk sentiment.

The new members are logistics and courier firm J&T Express-W (01519.HK), state-owned metals producer Aluminum Corporation of China, known as Chalco (02600.HK), and pharmaceutical company Beone Medicines (06160.HK). The inclusion brings a mix of industrial, materials, and healthcare sectors into the benchmark.

The change is most significant for the incoming companies, as their inclusion will trigger demand from passive investment funds and exchange-traded funds (ETFs) that are mandated to replicate the Hang Seng Index. This forced buying, which will occur around the implementation date, is expected to increase liquidity and could have a positive impact on the share prices of the newly added firms. For portfolio managers, the rebalance necessitates adjustments to maintain alignment with the updated index.

This article is for informational purposes only and does not constitute investment advice.