Rising Domestic Leader in High-End Optical Communication Testing Equipment

Specializing in high-precision testing and measurement instruments, Semight Instruments stands as a scarce domestic player in the optical communication testing equipment sector. Since its founding, the company has focused on testing solutions for high-speed communication, electrical performance, optical chips, and semiconductor wafer chips, building a diversified product matrix covering optical communication testing, semiconductor testing, and power device testing segments. As one of the world’s few and China’s only mass suppliers of core testing instruments for 400G, 800G, and 1.6T high-speed optical modules, Semight is the global second vendor to launch a full suite of testing equipment for industry-leading 1.6T optical modules, underscoring its distinctive technological scarcity and industrial competitiveness.

The company delivers accelerating earnings release amid booming industry prosperity. According to its H1 2026 performance forecast, Semight is expected to record net profit attributable to parent shareholders of RMB 510–580 million, representing a year-over-year growth of 802%–926%. Calculated based on the median value, Q2 2026 standalone net profit reaches approximately RMB 426 million, reflecting a 258% quarter-on-quarter surge and verifying robust earnings acceleration momentum.

Triple Growth Drivers: Booming Downstream Expansion, Rising Equipment Value, and Accelerated Local Substitution

The optical communication industry is currently in a strong super-cycle, driven by explosive AI infrastructure construction, bringing multi-dimensional growth opportunities for domestic testing equipment suppliers. First, AI-driven computing demand fuels continuous capacity expansion among downstream optical module manufacturers. Leading domestic vendor Innolight achieved RMB 1.929 billion capital expenditure in Q1 2026, skyrocketing 380% year-over-year. As an indispensable core link in optical module production lines, high-end testing equipment directly benefits from surging downstream capex.

Second, the continuous iteration of optical modules from 800G to 1.6T and beyond raises stringent requirements for testing accuracy and precision. High-speed, high-precision testing instruments witness rising value content per production line, further lifting the revenue contribution and profitability ceiling of high-end testing equipment.

Third, the domestic substitution wave unlocks massive incremental market space. The global optical communication testing equipment market has long been monopolized by overseas leaders. In 2024, foreign vendors occupied approximately 84% of the domestic market share. Semight ranks third globally with a 9.9% market share, emerging as the only domestic player among the industry’s top five suppliers. With sustained technological breakthroughs in high-end product lines, the company is poised to spearhead domestic substitution and capture substantial market share expansion amid the ongoing localization trend.