1秒钟，涨停！

Market Overview - The A-share market opened with mixed performance on July 31, with the Shanghai Composite Index slightly lower while the Shenzhen Component and ChiNext Index showed gains [1] - The market experienced volatility, with the Shanghai Composite Index dropping over 1% at one point, leading to all three major indices being in the red by the time of reporting [1] Sector Performance - The cyclical sectors such as steel, precious metals, coal, and real estate saw significant declines, while sectors like communication and computer technology showed strength [2] - The communication equipment sector rose by 1.98%, and electronic components increased by 1.87%, indicating a positive trend in these areas [3] Stock Highlights - CPO concept stocks were notably active, with Cambridge Technology hitting the daily limit and Lian Te Technology rising over 10% [4][5] - Liquid cooling server stocks also performed well, with Siquan New Materials reaching the daily limit and Yingweike hitting a historical high shortly after opening [6][7] - The assisted reproductive sector saw strong performance, with stocks like Gongtong Pharmaceutical and Lide Man hitting the daily limit, and Han Shang Group also experiencing significant gains [10] Notable Companies - Industrial Fulian reached a new historical high with a market capitalization exceeding 700 billion yuan, reflecting strong investor interest in the Nvidia supply chain [8][9] - Nan Fang Road Machinery achieved a remarkable performance with a stock price increase of 91% since July 18, marking a significant rise in market sentiment despite warnings of potential overheating [11][12] Policy Impact - A report from the Beijing Municipal Government highlighted measures to enhance reproductive health services and include suitable assisted reproductive technology projects in medical insurance coverage, which is expected to benefit the assisted reproductive sector [10]