Group 1 - The CPO concept continues to strengthen, with stocks like Jufei Optoelectronics and Xinyi Technology hitting the daily limit, while New Yisheng rose over 13% [1][2] - The CPO sector has seen a net inflow of 8.396 billion yuan from major funds [2][3] - New Yisheng, a leader in the CPO sector, attracted nearly 3.069 billion yuan in net inflow from major funds, while Zhongji Xuchuang received over 1.635 billion yuan [3] Group 2 - Nvidia has agreed to invest a total of 4 billion USD in two companies developing optical technology for data centers, which is crucial for AI systems [3][4] - Lumentum and Coherent, the companies receiving investment, produce optical and photonic technology products essential for AI and cloud computing infrastructure [4] - The investment highlights the importance of optical communication technology as a core technology for future AIDC interconnects, emphasizing the significance of the upstream supply chain [4]