收评：沪指跌近2%，券商、酿酒等板块走低，免税概念逆市活跃

Core Viewpoint - The major stock indices in China experienced a significant decline, with the Shanghai Composite Index dropping nearly 2%, reflecting a decrease in market risk appetite and a mixed performance across various sectors [1]. Market Performance - The Shanghai Composite Index closed down 1.95% at 3839.76 points, the Shenzhen Component fell 3.04% to 12688.94 points, and the ChiNext Index decreased by 3.36% to 2935.37 points [1]. - The total trading volume in the Shanghai and Shenzhen markets reached 19.547 trillion yuan [1]. Sector Analysis - Sectors such as semiconductors, automobiles, non-ferrous metals, brokerage firms, and liquor companies saw declines, while gas, oil, coal, and banking sectors performed positively [1]. - The duty-free concept stocks were notably active despite the overall market downturn [1]. Market Sentiment - The recent trading volume has significantly shrunk, reaching a new low, indicating a decrease in overall market risk appetite and a prevalent wait-and-see attitude among investors [1]. - The market's focus is expected to shift towards corporate earnings and fundamentals as the third-quarter earnings reporting period approaches [1]. Monetary Policy Context - Data from the central bank indicates that new social financing and credit data for September maintained a high growth rate, reflecting a moderately loose monetary policy stance and continued financial support for the real economy [1].