Group 1 - The optical communication sector is experiencing a downturn, with companies like Huiju Technology (01729) down 5.64% to HKD 15.9, Cambridge Technology (603083) down 5.56% to HKD 86.65, and Yangtze Optical Fibre (601869) down 3.39% to HKD 49.32 [1] - Overnight, Lumentum, a US optical communication stock, fell over 7%, negatively impacting market sentiment for the sector today [1] - According to a recent report by Guotou Securities, the optical module market is expected to see growth driven by AI demand expansion and high-end structural releases in 2026 [1] Group 2 - The new wave of AI computing infrastructure is expected to drive high demand for optical modules, with global cloud vendors' capital expenditures projected to continue on an upward trend [1] - Key drivers include the expansion of AI clusters, the rollout of next-generation computing platforms, and the implementation of technologies such as 1.6T/CPO [1] - The industry is evolving through two pathways: Scale-out, which expands horizontally through leaf spine architecture, amplifying optical module demand, and Scale-up, which breaks through copper cable bandwidth and distance limitations, accelerating the penetration of high-end optical modules in applications like GPU cabinet interconnection and memory pooling [1]