Recently, Hang Seng Indexes Company Limited announced the results of its quarterly review. 51WORLD (06651.HK) has officially been included as a constituent of the Hang Seng Composite LargeCap & MidCap Index (HSLMI), among other indexes. The adjustment will take effect on September 7, 2026, marking the company’s entry into the ranks of large- and mid-cap technology enterprises in the Hong Kong stock market in terms of market capitalization, trading liquidity, and capital-market recognition.
Review Results of the Hang Seng Benchmark and Thematic Indexes (2026-8-21)
The Hang Seng Composite LargeCap & MidCap Index has strict admission criteria and does not set a fixed number of constituents. Its core evaluation standards are free-float market capitalization coverage and long-term trading liquidity. Large- and mid-cap stocks together cover 95% of the market’s total capitalization. Companies must consistently meet hard indicators such as average daily market capitalization and trading activity, and pass the official screening process before being included as large- and mid-cap constituents. The index is an authoritative benchmark in Hong Kong for measuring the scale, trading liquidity, and market recognition of Main Board companies.
This inclusion in the Hang Seng Composite LargeCap & MidCap Index brings multiple substantial benefits to the company.
First, the company will be included in the passive allocation pool for Hang Seng large- and mid-cap stocks, reaching more global index-tracking funds, continuously broadening its access to long-term overseas capital, and further improving stock liquidity and market-pricing efficiency.
Second, under the new rules for the Hang Seng TECH Index, the eligible universe is limited to constituents of the Hang Seng Composite LargeCap & MidCap Index. 51WORLD&’s inclusion in the Hang Seng Composite LargeCap & MidCap Index means the company is expected to enter the eligible universe for core technology indexes such as the Hang Seng TECH Index, laying a foundation for attracting passive capital and institutional allocation.
At the same time, after being included in the Hang Seng Composite LargeCap & MidCap Index, 51WORLD is expected to attract more brokerage research coverage and institutional attention, promote the continuous optimization of its shareholder structure, and further enhance the company’s brand credibility and industry recognition, building a solid foundation for creating long-term commercial, capital-market, and social value.
Founded in 2015, 51WORLD (6651.HK) is China’s first core Physical AI infrastructure company to enter the capital market. With the vision of cloning Earth’s 510 million square kilometers, the company is committed to building a bridge between the digital world and the physical world. Relying on three core products, 51Aes for digital twins, 51Sim for synthetic data and simulation, and 51Earth for digital Earth, the company serves fields including autonomous driving, embodied intelligence, and aerospace exploration, and has served more than 1,000 medium and large enterprise clients worldwide.
