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Japan's Topix index fell to 1%.Real estate stocks of Hong Kong stocks weakened, and Sunac China fell more than 4%. As of press time, Sunac China (01918.HK) fell by 4.03%, Rongxin China (03301.HK) fell by 3.85%, and Longhu Group (00960.HK) fell by 2.43%.The weighted share price index of Taiwan Stock Exchange opened 0.2% lower at 23,002.37.

Guosheng Securities: AEC heavy-duty computing industry chain has entered the era of Lian Heng. Guosheng Securities Research Report pointed out that AEC(Active Electrical Cable) is an active cable interconnection scheme, which is mainly used in short-distance high-speed data transmission scenarios in data centers. 1)AEC is expected to become the first step for optical module manufacturers to penetrate downwards. Optical modules need to master photoelectric conversion and high-speed data communication, and DAC/AEC/AOC products have relatively mature technical requirements compared with single-mode/multimode optical module products with longer transmission distance. 2) Copper interconnection is widely used by large CSP not only in NVIDIA. NVIDIA used a large number of high-density copper interconnects in B series products, which made the industry re-recognize the reliability and price advantage of copper interconnects in short-distance scenes. 3) In the era of Lian Heng, domestic manufacturers still have obvious advantages. Chip manufacturers, represented by NVIDIA, have been hoping to conduct a comprehensive industry consolidation and provide customers with a complete set of solutions. What CSP manufacturers want more is the decoupling of the industrial chain, and every link such as GPU, copper connection, optical module and switch can find corresponding suppliers. The heavy volume of AEC and the rise of CSP manufacturer's independent scheme indicate that the computing power industry chain has entered the era of Lian Heng, and we are firmly optimistic about the domestic related computing power industry chain.Hong Kong stock Jingtai Holdings plunged nearly 15%, and the company's 1.464 million restricted shares are expected to circulate freely from today.Microsoft: The latest small language model PHI-4, which is specially used for complex reasoning, is introduced.

The Hang Seng Index and Hang Seng Technology Index both fell more than 1%.Hong Kong stock Jingtai Holdings plunged nearly 15%, and the company's 1.464 million restricted shares are expected to circulate freely from today.Shenzhen started the construction of the first batch of "AI+" medical equipment professional parks. At the 2024 Shenzhen International High Performance Medical Equipment Exhibition and Innovative Medicine Exhibition held on December 12, a number of breakthrough cutting-edge technological achievements and innovative products were unveiled, and more than 200 famous medical equipment enterprises, scientific research institutions and medical institutions from home and abroad gathered to discuss cutting-edge technologies, explore innovative paths of medical equipment and help the high-quality development of the industry. In order to further seize the opportunity of artificial intelligence medical development, accelerate the digital transformation of Shenzhen's biomedical industry, gather a number of characteristic "AI+" medical equipment enterprises, and incubate a number of innovative medical equipment projects, Shenzhen started to build "AI+" medical equipment professional parks in key areas of industrial development. At this exhibition, the construction of the first batch of Shenzhen "AI+" pharmaceutical machinery professional parks, such as Baolong Biomedical Innovation and Development Pilot Zone, Nanshan Zhicheng, Hetao AI+ Biological Professional Park and Yinxing Science and Technology Park, was officially launched. Next, Shenzhen will vigorously improve the development and incubation of new quality productivity in the field of medical equipment, work together to shape the deep integration ecological pattern of "artificial intelligence+medical equipment", and accelerate the development and growth of "AI+" medical equipment industry.