Zhi Tong Cai Jing·2025-08-25 05:50Group 1 - Changfei Fiber (601869) saw its stock price rise over 20%, reaching a historical high of 44.86 HKD during trading, with a current price of 43.96 HKD and a trading volume of 1.22 billion HKD [1] - Nvidia announced the launch of NVIDIA Spectrum-XGS Ethernet, a technology that enables the combination of multiple distributed data centers into a one-gigawatt AI super factory, addressing the limitations of existing commercial Ethernet networks [1] - Open-source securities highlighted that the scale-across technology could become the "third pillar" of AI computing, following scale-up and scale-out, which will further drive the development of AI computing interconnect industries, emphasizing the opportunities in optical interconnect and related sectors [1] Group 2 - Zhongtai Securities reported that hollow-core fiber, which uses air as a transmission medium, features lower latency and lower loss, making it a key component for future AI data center interconnects [2] - The first commercial use of hollow-core fiber by China Mobile is expected to accelerate the commercialization process, with Changfei Fiber being the sole bidder at an actual bid price of approximately 36,000 RMB per core kilometer [2] - The report emphasizes the importance of Changfei Fiber due to its leading production capacity in hollow-core technology and its successful bids in related projects [2]