[PCB concept fluctuated and strengthened, and Ultrasonic Electronics hit the daily limit] On November 9, the PCB concept fluctuated and strengthened, and Ultrasonic Electronics hit the daily limit. Aohong Electronics, Guanghe Technology, Nanya New Materials, and Jinan Guoji followed suit. On the news, Wind data statistics show that 40 listed PCB and related materials and equipment companies achieved a total operating income of 238.006 billion yuan in the first three quarters of 2026, a year-on-year increase of 46.78%; net profit attributable to parent companies was 35.329 billion yuan, a year-on-year increase of 102.03%. Among them, 38 companies saw revenue growth, and 32 companies’ net profit attributable to parent companies grew faster than revenue growth.