A-shares close: ChiNext index rebounds in volume, rising 2.84%, with over 4200 individual stocks in the market falling According to Caixin News Agency, after the market surged and fell back, it fluctuated and rose again. The yellow and white lines are clearly differentiated, and the trend of heavyweight stocks is strong. The volume can be significantly increased, with a transaction volume of 3.59 trillion yuan in the Shanghai and Shenzhen stock markets, an increase of 310 billion yuan from the previous trading day. On the market, the hot topics are quite chaotic, with over 4200 individual stocks falling across the entire market. From the perspective of sectors, the concept of storage chips has exploded, with Beijing Junzheng's 20cm limit up and Demingli's limit up, both reaching historic highs. The concept of supercapacitors is strengthening, with Black Cat stocks hitting the daily limit up on the 4th board in 5 days and Xinjiang Zhonghe rising. The advanced packaging concept has shown active performance, with Changdian Technology producing 3 boards in 4 days, continuing to set a new historical high. The CPO concept fluctuated and rose, with Xinyi Shanda reaching a historic high and Huashengchang hitting the limit up. The PCB concept rose during the trading session, with Zhongjing Electronics, Sinoma Technology, Redboard Technology, and Ultrasonic Electronics hitting the daily limit up. The large financial sector has been repeatedly active, with Changjiang Securities trading three times in four days.