On September 18, Z.AI (02513.HK) rose 4.86% in regular trading, trading at 767.5 HKD/share, with turnover of 358 million HKD.

The rally was driven by multiple catalysts. On September 17, Z.AI disclosed its first Recursive Self-Improvement (RSI) engineering milestone: an Infra Agent powered by GLM-5.3 autonomously optimized the GLM-5.3-Flash inference system on a cluster of over 100,000 domestic AI accelerators, achieving a 3x throughput improvement in under two weeks. The company described it as the first RSI practice among domestic large models.

Meanwhile, several major investment banks reiterated bullish stances. Morgan Stanley maintained an Overweight rating with a target price of 1,800 HKD; CLSA rated the stock Outperform; Daiwa reaffirmed Buy, noting risk-reward has significantly improved at approximately 14x EV/ARR; and CMB International maintained a Buy rating with a 1,600 HKD target. Northbound capital also continued accumulating the stock for a fifth consecutive day.

The positive momentum follows Z.AI raising its year-end ARR guidance by 25% to 3 billion USD and announcing cloud service revenue-sharing agreements effective from October.

(The above content is based on publicly available market information, generated by a program or algorithm, and is intended solely as a stock movement alert. It does not constitute investment advice or a basis for trading decisions.)