沪指半日下跌0.44%，小微股保持活跃

Market Overview - The stock market opened lower on October 22, with the Shanghai Composite Index down 0.44% to 3899.05 points, the Shenzhen Component down 0.81%, and the ChiNext Index down 0.89% [1] - A-shares saw a half-day trading volume of 1.11 trillion yuan [1] Monetary Policy - The People's Bank of China conducted a 138.2 billion yuan 7-day reverse repurchase operation at a fixed rate of 1.4%, with a net injection of 94.7 billion yuan for the day [2] Gold Market - The World Gold Council reported that global physical gold ETFs saw the largest monthly inflow ever in September, totaling 26 billion dollars, bringing the total inflow for Q3 to a record 26 billion dollars [3] - As of the end of Q3, global gold ETF assets under management reached a historical high of 472 billion dollars, with total holdings increasing by 6% to 3838 tons [3] Sector Performance - The nuclear fusion concept stocks rebounded, with Changfu Co. and Hahai Huaton rising nearly 10% [3] - The robotics sector also saw significant gains, with companies like Dayang Electric and Ruineng Technology experiencing substantial increases [3] Health Sector Insights - Companies in the health sector, such as Zhongsheng Pharmaceutical, Minsheng Health, and Huaihua Pharmaceutical, are focusing on differentiated product lines and competitive advantages in their respective markets [7][8] - Zhongsheng Pharmaceutical is leveraging its new drug development technology platforms in respiratory and metabolic diseases [7] - Minsheng Health is expected to grow its probiotic business and capitalize on the scarcity of smoking cessation drug approvals [7] - Huaihua Pharmaceutical is focusing on specific market segments related to elderly, children, and women's health [7]