According to Beating, Hong Kong-listed AI firms Zhipu (02513.HK) and MiniMax (00100.HK) surged to record highs on May 27. Zhipu rose 5.95% to close at 1425 Hong Kong dollars, reaching an intraday peak of 1468 Hong Kong dollars with a market cap of 635.326 billion Hong Kong dollars. MiniMax gained 10.53% to close at 850 Hong Kong dollars, with a market cap of 266.59 billion Hong Kong dollars.
The rally was primarily driven by both companies' formal inclusion in the Hang Seng Tech Index, effective June 8, announced by Hang Seng Indexes on May 22. Market analysts attributed the gains to passive index funds and long-term portfolio allocations flowing in ahead of the inclusion. Technical advances also supported the momentum: Zhipu launched GLM-5.1 high-speed API, while MiniMax released M3 sparse attention technology details and a comprehensive M2 technical report.