收评：创业板指跌约4%，半导体、有色等板块走低，保险等板块逆市拉升

Group 1 - The stock indices in the two markets experienced fluctuations and declines, with the ChiNext Index and the STAR 50 Index dropping approximately 4% [1] - As of the market close, the Shanghai Composite Index fell by 0.62% to 3865.23 points, the Shenzhen Component Index decreased by 2.54% to 12895.11 points, the ChiNext Index dropped by 3.99% to 2955.98 points, and the STAR 50 Index declined by 4.26%, with a total trading volume of 25.969 billion yuan [1] - Sectors such as semiconductors, non-ferrous metals, automobiles, and pharmaceuticals saw declines, while insurance, coal, banking, liquor, and oil sectors experienced gains [1] Group 2 - The current market style reflects a correction in previously high-performing stocks, while defensive stocks are showing strong performance [2] - Despite a decrease in trading volume, the market remains active with a trading volume around 2.5 trillion yuan, indicating that trading activity has not systematically cooled down [1] - In the medium to long term, the A-share market is expected to benefit from the industrial revolution driven by artificial intelligence and the global liquidity easing led by the Federal Reserve's interest rate cuts [1]