A股收评：冲高回落！三大指数齐跌，北证50指数跌2.11%，存储芯片、有色金属板块走强

Market Overview - The three major A-share indices collectively experienced a pullback after reaching new highs, with the Shanghai Composite Index closing down 0.12% at 3870 points, having briefly hit a ten-year high during the day [1] - The Shenzhen Component Index fell by 0.43%, while the ChiNext Index dropped by 1.09%, and the North Star 50 Index decreased by 2.11% [1] - Total trading volume for the day was 2.55 trillion yuan, an increase of 83.7 billion yuan compared to the previous trading day, with nearly 3400 stocks declining across the market [1] Sector Performance - The semiconductor sector saw significant gains, with SanDisk announcing a price increase of over 10%, leading to substantial rises in storage chip stocks [1] - The cultivated diamond sector also surged, with World Diamond rising over 15% [1] - The non-ferrous metals and gold sectors experienced explosive growth, with stocks like Northern Copper and Electric Alloy reaching their daily limit [1] - The real estate sector was active, highlighted by New Dazheng hitting the daily limit [1] - Conversely, insurance stocks weakened, with China Pacific Insurance leading the decline [1] - The PEEK materials concept saw a downturn, with companies like New Han New Materials and Ocean Biology dropping over 4% [1] - The food and beverage sector faced volatility, with Andeli falling over 8% [1] - Gaming, securities, and banking sectors were among the worst performers [1] Top Gainers and Losers - The top gainers included sectors such as computer hardware, semiconductors, and basic metals, with respective five-day increases of 2.71%, 1.56%, and 1.96% [2] - Real estate and motorcycle sectors also showed positive performance, each with a 1.51% increase [2]