Group 1 - The optical communication sector is experiencing a decline, with companies like Huiju Technology (01729) down 5.64% to HKD 15.9, Cambridge Technology (06166) down 5.56% to HKD 86.65, and Yangtze Optical Fibre and Cable (06869) down 3.39% to HKD 49.32 [1] - The drop in the sector is influenced by a significant decline in the US optical communication stock Lumentum, which fell over 7%, affecting market sentiment [1] - According to a recent report from Guotou Securities, the optical module market is expected to see growth driven by AI demand expansion and high-end structural releases by 2026, with a continued upward trend in global cloud vendor capital expenditures [1] Group 2 - The report highlights that the new round of AI computing power construction will drive high growth in the demand for high-speed optical modules, supported by the expansion of AI clusters and the rollout of next-generation computing platforms [1] - The industry is evolving through two main paths: Scale-out, which expands horizontally through leaf spine architecture, amplifying optical module demand through a "multiplier effect," and Scale-up, which breaks through the bandwidth and distance limitations of copper cables, accelerating the penetration of high-end optical modules in applications like GPU cabinet interconnection and memory pooling [1]