A股CPO概念普跌，光库科技跌超5%

Group 1 - The CPO concept in the A-share market experienced a widespread decline, with several companies showing significant drops in their stock prices [1] - Guangku Technology fell over 5%, while Taicheng Light, Cambridge Technology, and Tianfu Communication dropped more than 4% [1] - Dekeli, Zhongfu Circuit, Founder Technology, Zhongji Xuchuang, Jingwang Electronics, and Xinyi Sheng all saw declines exceeding 3% [1]