GOLDEN SUN SECURITIES·2026-03-05 08:24Investment Rating - The report maintains an "Accumulate" rating for the industry [4] Core Insights - The optical communication chip is identified as the core engine for optical interconnection, with domestic market share expected to increase significantly due to the low self-sufficiency rate in high-speed optical communication chips in China, currently only 7% in the 25G and above segment [1][2] - The report highlights the transition from module assembly to chip definition in the optical communication industry, emphasizing the importance of TIA and Driver chips in enhancing signal speed and reducing power consumption [1] - The evolution of XPO technology is projected to significantly increase the value of optical communication chips, as it removes the need for high-cost DSP chips, redistributing value to TIA and Driver components [2] Summary by Sections Industry Overview - The optical communication chip market is characterized by a stable global supplier competition landscape, with domestic chip capabilities expected to rise alongside the increasing market share of local optical module companies [2] Technological Advancements - The integration of advanced packaging and system architecture is set to open up new opportunities in optical interconnection, facilitating a shift from mid-range to chip-level interconnection markets [2] Investment Recommendations - The report suggests focusing on key companies involved in optical communication chip design and manufacturing, including companies like 优迅股份, 中晟微电子, MACOM, Semtech, MaxLinear, and 玏芯科技 for design, and Tower and 中芯国际 for manufacturing [3]