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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.In the exchange market, the national debt rose the most, with "National Debt 2404" rising more than 4%, "National Debt 23", "Special Country 24 03" and "Special Country 24 01" rising nearly 1%.Hongrun Construction established a commercial management company in Wuxi. According to the enterprise search APP, Wuxi Hongrun Commercial Management Co., Ltd. was recently established. The legal representative is Jin Zhenjun, with a registered capital of 1 million yuan. Its business scope includes: commercial complex management services; Property management; Real estate broker, etc. Enterprise investigation shows that the company is wholly owned by Hongrun Construction.

Xray, an important partner of Yizhizhuang, officially announced a strategic cooperation with Google. According to Yizhizhuang, at the Android XR conference held in new york, Google officially announced a strategic cooperation with Xray to jointly build the Android XR ecosystem. This cooperation not only highlights XREAL's position as the world's largest manufacturer of AR glasses, but also marks a new stage of accelerated popularization of XR industry. It is noteworthy that Lingyizhi, as a long-term strategic partner of XREAL, provides key components and assembly services for XREAL AR glasses.Japan's Topix index fell to 1%.FTSE China A50 index futures opened 0.80% lower, and closed down 0.89% in the last session.

The central bank's open market today launched a 7-day reverse repurchase operation of 205.1 billion yuan, and the operating interest rate was flat at 1.50%. Today, 190.9 billion yuan of 7-day reverse repurchase expired, and the net investment on that day was 14.2 billion yuan.It is reported that Baidu and Geely are taking the transfer process to pay the social security arrears for employees of Extreme Vietnam in November. According to media reports, on the evening of December 12, the CEO of Extreme Vietnam Xia Yiping and Geely and Baidu held a closed meeting. After several rounds of communication, Baidu and Geely are taking the transfer process to pay the arrears of social security for employees in November. Shareholders Geely and Baidu set up an emergency team to participate remotely. In response to this news, Baidu and Geely did not comment. (Sina Technology)Domestic insurance in Hong Kong stocks and Chinese brokerage stocks fluctuated lower, while domestic insurance in Hong Kong stocks and Chinese brokerage stocks fluctuated lower. Guolian Securities fell more than 5%, followed by New China Life Insurance, China Pacific Insurance, China Life Insurance, China Merchants Securities and china galaxy.