The Zhitong Finance App learned that on September 18, in the Hong Kong stock market, Beishui traded a net purchase of HK$1,193 billion. Among them, Hong Kong Stock Connect (Shanghai) had a net purchase of HK$17 million and Hong Kong Stock Connect (Shenzhen) had a net purchase of HK$1,176 million.
The individual stocks that Beishui Net bought the most were Baidu Group-W (09888), Zhi Spectrum (02513), and Changfei Optical Cable (06869). The individual stocks sold the most by Beishui Net were Yingfu Fund (02800), Alibaba-W (09988), and Zhaoyi Innovation (03986).
Hong Kong Stock Connect (Shanghai) active trading stocks
Hong Kong Stock Connect (Shenzhen) active trading stocks
Baidu Group-W (09888) received a net purchase of HK$4.261 billion. Baidu Group's AI cloud infrastructure revenue in the first half of the year was 16.1 billion yuan, an increase of 65% over the previous year. In AI cloud infrastructure, GPU cloud revenue increased 230% year over year. At the 2026 Smart Economy Forum, Baidu Smart Cloud proposed the “industrial intelligence operating system” concept, opened Baidu's ecosystem platform to enter, and announced that Tianchi Super Node had achieved full-stack domestic production and fully opened the technical specifications for the six core modules.
Smart Spectrum (02513) received a net purchase of HK$853 million. Smart Spectrum officially released GLM-5.3-FlashX, and the API was fully opened simultaneously. According to reports, the inference speed of the new version can reach up to 200 tokens/s, which is 5 times higher than the current GLM-5.3-Flash, and the pricing is increased 2.5 times that of the original version. According to Smart Spectrum, the inference cluster composed of 100,000 domestic chips was used up by users as soon as it went online.
Changfei Optical Fiber Cable (06869) and Cambridge Technology (06166) received net purchases of HK$564 million and HK$296 million respectively. Galaxy Securities pointed out that the optical fiber industry is shifting from traditional telecom cycle products to computing power infrastructure tracks. Backbone network expansion resonates with internal data center demand, opening up long-term structural incremental space. Leading companies that are self-sufficient in core materials will fully unleash their profit flexibility.
SMIC (00981) and Huahong Hongli (01347) received net purchases of HK$528 million and HK$479 million respectively. Goldman Sachs pointed out that, driven by generative AI and local demand, the capital expenditure of China's semiconductor industry is expected to record a 10% to 15% increase from 2026 to 2030, reaching 82 billion US dollars by 2030; the potential market size of AI chips in China is expected to grow at an average compound annual rate of 69% from 2025 to 2030, reaching 678 billion US dollars by 2030.
Yingfu Fund (02800) had a net sale of HK$2,244 billion. Guoyuan International believes that the current adjustment of Hong Kong stocks is mainly affected by external factors such as rising oil prices, inflation, and overseas interest rates, and the short-term situation is still based on “index fluctuations, industry differentiation, and rotation.” However, southbound capital continues to flow in, and the technology sector has shown a certain left-side layout during the adjustment process, and the fundamentals and capital aspects of Hong Kong stocks themselves have not deteriorated significantly.
In addition, Jiantao Laminate (01888), Zhaoyi Innovation (03986), and Alibaba-W (09988) received net sales of HK$16.17 million, 93.51 million, and HK$1,123 billion respectively.