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The central bank conducted a 7-day reverse repurchase operation of 78.6 billion yuan today, and the winning bid rate was 1.50%, which was the same as before. As 41.3 billion yuan of 7-day reverse repurchase expired today, the net investment on that day was 37.3 billion yuan.IBM's new optical technology can greatly speed up the training of AI models. IBM announced the development of a new optical technology, which can train AI models at the speed of light and save energy greatly. The company said that by applying this breakthrough to the data center, the energy saved by training an AI model is equivalent to the energy consumption of 5,000 American families in one year.The three major stock indexes opened lower, with the Shanghai Composite Index down 0.19%, the Shenzhen Component Index down 0.29% and the Growth Enterprise Market down 0.15%.

Robot concept stocks fell at the opening, Hanwang Technology fell, Hanwang Technology and Shandong Mining Machine fell, and Sanfeng Intelligent, Tuosida, Hanwei Technology, Shuanglin, Weichuang Electric, Fengli Intelligent and Wuzhou Xinchun fell more than 5%.The concept of reducer went down in early trading, and Shandong Mining Machine and Shanzi Hi-Tech fell, while Shandong Mining Machine and Shanzi Hi-Tech fell, and Qinghai Huading, Landay Technology, Nifa Seiki and Wuzhou New Year followed suit.The retail sector moved up for 8 days and 5 boards of Zhongbai Group, while the retail sector moved up for 8 days and 5 boards of Zhongbai Group, with the daily limit of Youa shares, and Dashang shares, wenfeng shares, Xujiahui and Jiajiayue rose rapidly.

The three major stock indexes opened lower, with the Shanghai Composite Index down 0.19%, the Shenzhen Component Index down 0.29% and the Growth Enterprise Market down 0.15%.The number of second-hand houses in Shenzhen was the highest in a single week in more than three years. It was learned from Shenzhen Real Estate Agency Association that in the 49th week of 2024 (December 2 -8), 2,390 sets of second-hand houses (including self-service) were recorded in the city, an increase of 12.6% from the previous month. The volume of second-hand houses recorded in a single week hit a new high in the past 200 weeks. (Shenzhen Special Zone Daily)Most gold stocks in Hong Kong stocks strengthened, and Zhaojin Mining rose by over 5%. As of press time, Zhaojin Mining (01818.HK) rose by 5.47%, Lingbao Gold (03330.HK) rose by 5.09% and Shandong Gold (01787.HK) rose by 2.26%.