收评：沪指涨1.18% 小金属板块涨幅居前

Core Viewpoint - The A-share market experienced a collective rise in the three major indices, with significant trading volumes reported on October 27, 2023 [1]. Market Performance - The Shanghai Composite Index closed at 3996.94 points, up by 1.18%, with a trading volume of 10,434.04 million yuan [1]. - The Shenzhen Component Index closed at 13,489.40 points, up by 1.51%, with a trading volume of 12,967.27 million yuan [1]. - The ChiNext Index closed at 3,234.46 points, up by 1.98%, with a trading volume of 6,117.19 million yuan [1]. Sector Performance - Leading sectors in terms of gains included small metals, electronic chemicals, and components, with respective increases of 3.05%, 2.50%, and 2.30% [2]. - The small metal sector had a total trading volume of 1,209.07 million hands and a net inflow of 0.53 billion yuan, with 24 stocks rising and 2 falling [2]. - The electronic chemicals sector had a trading volume of 1,176.40 million hands, a net outflow of 1.06 billion yuan, with 33 stocks rising and 8 falling [2]. - The components sector recorded a trading volume of 2,164.78 million hands, a net inflow of 30.86 billion yuan, with 50 stocks rising and 10 falling [2]. Declining Sectors - Sectors that saw declines included wind power equipment, gaming, and cultural media, with respective decreases of 1.17%, 1.16%, and 0.35% [2]. - The wind power equipment sector had a trading volume of 874.60 million hands and a net outflow of 19.70 billion yuan, with 10 stocks rising and 19 falling [2]. - The gaming sector recorded a trading volume of 938.44 million hands, a net outflow of 13.81 billion yuan, with 8 stocks rising and 16 falling [2]. - The cultural media sector had a trading volume of 2,111.01 million hands, a net outflow of 12.79 billion yuan, with 30 stocks rising and 50 falling [2].