午评：主要股指均显著上涨 通信设备、钢铁板块涨幅靠前

Market Performance - The Shanghai and Shenzhen stock markets opened significantly higher on October 27, with the Shanghai Composite Index rising 1.04% to 3991.35 points and a trading volume of approximately 696.2 billion yuan [1] - The Shenzhen Component Index increased by 1.26% to 13457.28 points, with a trading volume of about 868.9 billion yuan, while the ChiNext Index rose 1.54% to 3220.52 points, with a trading volume of around 412.8 billion yuan [1] Sector Performance - The communication equipment, steel, and aquaculture sectors showed strong gains, while the wind power and gaming sectors experienced declines [1] - Technology sectors, including photolithography machines, storage chips, and semiconductors, initially surged before experiencing a pullback, followed by a rebound before the midday close [1] - Low P/E ratio sectors such as coal, banking, electricity, and oil saw initial adjustments but rebounded significantly [1] Individual Stock Highlights - Leading technology stocks continued their strong performance from the previous trading day, with several stocks, including New Yisheng and Jiangbo Long, reaching historical intraday highs [1] Economic Indicators - In September, profits of industrial enterprises above designated size increased by 21.6% year-on-year, with total profits for the first nine months reaching 537.32 billion yuan, a 3.2% increase year-on-year [4] - Among 41 major industrial sectors, 23 reported profit growth year-on-year, with 30 sectors showing profit increases in September, representing a growth rate of 73.2% [4] - Notable growth was observed in the aerospace industry, with profits in aerospace manufacturing rising by 11.3%, and significant increases in smart consumer devices and electronic components manufacturing profits by 81.6% and 39.7%, respectively [4]