[A-Share Market Close: ChiNext Index Rebounds Nearly 2%, PCB and CPO Concepts Strengthen Across the Board] According to a report by CaiLian News, the market rebounded after bottoming out, with all three major indices closing in the green. The ChiNext Index rose nearly 2%, having previously dropped more than 1%. The combined trading volume of the Shanghai and Shenzhen markets reached 2.97 trillion yuan, a decrease of 270.4 billion yuan compared to the previous trading day. On the market, hotspots rotated rapidly, with over 3,000 stocks rising across the board and more than 100 stocks hitting their daily limit. From a sector perspective, the CPO concept surged in the afternoon, with Anfu Technology reversing to hit the daily limit, and the "Yi Zhong Tian" optical module trio all reaching record highs. The PCB concept rebounded during the day, with Baoding Technology achieving six daily limits in nine days, setting a new record high, and Honghe Technology hitting three daily limits in five days. The power sector strengthened, with Huadian Energy achieving four consecutive daily limits, Guangdong Electric Power A hitting two consecutive daily limits, and Huitian Thermal Power and Gansu Energy hitting their daily limits. The chip industry chain saw a volatile rise, with Guofeng New Materials, Yida Shares, and Kangda New Materials hitting their daily limits, while Huahong Company surged over 15%, continuing to set new record highs. The cultivated diamond concept exploded, with Huifeng Diamond, SF Diamond, and Huanghe Whirlwind hitting their daily limits.