A股收评：沪指跌0.07%，创业板指跌0.82%，有色金属、证券、能源金属等概念走弱

Market Performance - The three major A-share indices collectively declined, with the Shanghai Composite Index down by 0.07%, the Shenzhen Component Index down by 0.51%, and the ChiNext Index down by 0.82% [1] - The North Stock 50 index increased by 0.81% [1] - The total trading volume in the Shanghai and Shenzhen markets was approximately 280.04 billion yuan, a decrease of about 53.84 billion yuan compared to the previous trading day [1] Stock Movement - Out of 3731 stocks in the market, 3731 stocks rose while 1595 stocks fell, with 111 stocks hitting the daily limit up and 6 stocks hitting the daily limit down [1] Sector Performance - Leading sectors included aerospace, aircraft carriers, military state-owned enterprises, defense and military industry, electric equipment, and construction engineering [1] - Underperforming sectors included non-ferrous metals such as cobalt, antimony, zinc, securities, energy metals, and non-bank financials [1]