A股10月收官：沪指一度站上4000点创10年新高

Market Performance - The Shanghai Composite Index has increased by 1.85% this month, briefly surpassing 4000 points, marking a ten-year high [1] - The ChiNext Index has decreased by 1.56% this month, while the STAR 50 Index has seen a decline of over 5% [1] - The Beijing Stock Exchange 50 Index has performed strongly, with a monthly increase of over 3.5% [1] Daily Market Activity - Today's market experienced fluctuations, with the ChiNext Index dropping over 2% [2] - The total trading volume in the Shanghai and Shenzhen markets was 2.32 trillion yuan, a decrease of 103.9 billion yuan compared to the previous trading day [2] - The pharmaceutical sector saw collective gains, with stocks like Lianhuan Pharmaceutical and Sanofi China hitting the daily limit [2] - The liquor sector rallied in the afternoon, with Zhongrui Co. achieving two consecutive limit-ups [2] - The film and theater sector was active, with Bona Film Group reaching the daily limit [2] - The Fujian sector strengthened again, with Pingtan Development achieving eight limit-ups in eleven days, and Fujian Jin Sen and Fulongma both hitting two consecutive limit-ups [2] - AI application stocks rose against the trend, with Rongxin Culture and Fushi Holdings both reaching the daily limit of 20% [2] Sector Performance - The pharmaceutical, film and theater, and AI application sectors had the highest gains [3] - The insurance, storage chip, and CPO sectors experienced the largest declines [3]