Group 1 - The Co-Packaged Optics (CPO) sector experienced a decline of 5.74%, ranking among the top losers in the concept sector, with stocks like Tongfu Microelectronics, Huagong Technology, and Cambridge Technology hitting the daily limit down [1][2] - Major funds saw a net outflow of 14.876 billion yuan from the CPO sector today, with 98 stocks experiencing net outflows, and 33 stocks seeing outflows exceeding 100 million yuan [2][3] - The stock with the highest net outflow was Zhongji Xuchuang, with a net outflow of 2.003 billion yuan, followed by Xinyi Sheng and Tianfu Communication with net outflows of 1.778 billion yuan and 1.147 billion yuan respectively [2][3] Group 2 - The top gainers in the CPO sector included Luxshare Precision and Feilixin, which rose by 2.71% and 2.44% respectively [1][5] - The overall market sentiment was negative, with several other sectors also experiencing declines, such as the AI sector and advanced packaging, which fell by 5.11% and 4.09% respectively [2][3] - The trading volume for the CPO sector was significant, with stocks like Zhongji Xuchuang and Xinyi Sheng showing high turnover rates of 8.49% and 11.77% respectively [3][4]

Group 1 - The CPO (Co-Packaged Optics) sector has seen an increase of over 3% [1] - The Huabao AI ETF (159363) on the ChiNext board has risen by 2.69%, marking three consecutive days of gains [1] - The trading volume for the ETF reached 281 million yuan, with an increase of 60 million shares in the past month [1]