A股高开高走尾盘涨幅略有扩大，沪指再创十年新高

Market Overview - The A-share market saw all three major indices open higher on October 24, with the Shanghai Composite Index reaching a ten-year high [2] - The Shanghai Composite Index closed up 0.71% at 3950.31 points, the ChiNext Index rose 3.57% to 3171.57 points, and the Shenzhen Component Index increased by 2.02% to 13289.18 points [2] Sector Performance - The semiconductor industry experienced significant gains, with stocks like Zhongji Xuchuang rising over 11% to reach a historical high [2][4] - The defense and military sector also performed well, with companies such as Xicai Testing and China Satellite seeing gains of over 10% [4][5] - Conversely, coal, gas, real estate, and liquor sectors faced declines, with several coal stocks dropping over 7% [2][5][6] Trading Volume - The total trading volume in the Shanghai and Shenzhen markets reached 19,742 billion yuan, an increase of 3,303 billion yuan from the previous trading day [2] Investment Insights - Dongguan Securities suggests that investors should maintain strategic focus as the index reaches high levels, with potential short-term volatility due to profit-taking [7] - Zhongyuan Securities indicates that market policy expectations are rising, and investors should actively seek quality assets during market fluctuations [8] - The semiconductor and defense sectors are highlighted as key areas for investment, with a focus on companies transitioning to AI data centers [4][5][8]