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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.The Nikkei 225 index fell to 1%.The three major stock indexes all fell more than 1%, the Shanghai Composite Index fell 1%, the Shenzhen Composite Index fell 1.28%, the Growth Enterprise Market Index fell 1.49%, and more than 4,100 stocks in the whole market fell.

The three major stock indexes opened lower, with the Shanghai Composite Index down 0.54%, the Shenzhen Component Index down 0.74% and the Growth Enterprise Market down 0.87%.Putin: China has made great strides in technological development. According to a report by the Tass news agency on December 11th, Russian President Vladimir Putin said at the international conference on "Journey of Artificial Intelligence" on December 11th that China is making great strides in technological development. According to the report, Putin pointed out in a dialogue with Song Haitao, president of Shanghai Institute of Artificial Intelligence: "China is making great strides in technological development and application of the most important technological development tools. Of course, the artificial intelligence you study is one of the most important tools. " Song Haitao told Putin that the Shanghai Institute of Artificial Intelligence plans to sign a memorandum of cooperation with the Russian Federal Savings Bank to promote technical research in the field of artificial intelligence. Putin said: "I am very happy to hear that you are going to sign a contract with the Russian Federal Savings Bank. I think this is meaningful for you and the Russian Federal Savings Bank. " (World Wide Web)Visionox: Chengdu Chenxian Micro-LED production line has entered the sprint stage of mass production and shipment. Visionox (002387) said on the interactive platform on December 13th that the first TFT-based Micro-LED production line in Chengdu Chenxian, a shareholding company, completed the equipment moving in in September this year and is now entering the sprint stage of mass production and shipment.

The 30-year Treasury ETF rose sharply at the opening, hitting a record high. Both "Boshi SSE 30-year Treasury ETF" and "Pengyang China Bond -30-year Treasury ETF" rose by 0.65%.Tik Tok bean bag concept stocks opened lower and went higher, three-dimensional communication rose daily, Zhejiang-Wenzhou Internet, Zhangyue Technology and Guangbo shares rose sharply.Chief Cabinet Secretary of Japan: Short-term data show that enterprises have a strong willingness to invest.