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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%.On December 4, the price of pig food was 7.74, up 0.52% from November 27. According to the data of the National Development and Reform Commission, as of December 4, the price of live pigs nationwide was 16.72 yuan/kg, down 1.30% from November 27. The price of corn in the main wholesale market is 2.16 yuan/kg, down 1.82% from November 27; The price of pig food was 7.74, up 0.52% from November 27th.Hong Kong stocks opened lower, with the Hang Seng Technology Index falling to 2% and the Hang Seng Index falling 1.76%.

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%.Shanxi Securities: Sora officially launched the AI video generation tool, which continued to iterate. Shanxi Securities Research Report pointed out that 1) On December 10th, OpenAI officially launched Sora. Compared with the version released by OpenAI in February, the new Sora launched this time added Storyboard, Remix, Re-cut and other functions, which greatly improved the video re-creation ability and optimized the video generation speed and generation method. 2) Since the beginning of this year, domestic enterprises have begun to accelerate the research and development and iteration of AI video generation products, and the product capabilities have been continuously improved and the application scenarios have been continuously broadened. Sora was officially launched, and the video creation ability was significantly improved, and it began to change from a creative tool to a productivity tool. With the continuous iteration of AI video generation tools represented by Sora, its penetration into various application scenarios is expected to accelerate in the future. On the one hand, the application layer suggests focusing on creative, design, education and other multi-modal fields, especially video generation. On the other hand, the demand for computing power in video generation model is significantly higher than that in text, focusing on AI computing power related targets.The application direction of AI fell in early trading, with Jincai Internet falling more than 8%, followed by Tianyu Digital, Huayang Lianzhong, Fushi Holdings, Aofei Entertainment and Fengyuzhu.

The turnover of Shanghai and Shenzhen stock markets exceeded 500 billion.Good wife set up an intelligent technology company in Quanzhou, and the enterprise search APP shows that Quanzhou Sunguest Intelligent Technology Co., Ltd. was established recently, with the legal representative of Cao Caifeng and the registered capital of 500,000 yuan. Its business scope includes: engineering and technical research and experimental development; Network and information security software development; Software development; Digital technology services, etc. Enterprise equity penetration shows that the company is wholly owned by Haotai.The three major indexes all fell by more than 1%, with nearly 4,200 stocks, and the index weakened sharply. The Shanghai Composite Index fell by more than 1%, the Shenzhen Component Index fell by 1.24%, and the Growth Enterprise Market Index fell by 1.45%. Securities, real estate and photovoltaics were among the top losers, with nearly 4,200 stocks falling in Shanghai, Shenzhen and Beijing.