Ge Long Hui·2026-02-26 06:03Group 1 - The A-share market saw a collective surge in PCB concept stocks, indicating strong investor interest in this sector [1] - Tongyu New Materials experienced a rise of over 17%, while Mingyang Circuit increased by more than 16% [1] - Many other companies also showed significant gains, with Wanyuantong up over 11% and Weiergao rising more than 10% [1] Group 2 - Several companies reached their daily limit up, including Dazhu Laser, Guanghe Technology, and Shenzhen South Circuit, among others [1] - Other notable performers included Qihui Fushi and Shenghong Technology, which rose over 9%, and Lite Optoelectronics, which increased by more than 8% [1] - Companies like Chip Microelectronics, Dongwei Technology, and Benchuan Intelligent also saw gains exceeding 7% [1]