水泥板块10月13日跌1.2%，上峰水泥领跌，主力资金净流出2.92亿元

Market Overview - The cement sector experienced a decline of 1.2% on October 13, with Shangfeng Cement leading the drop [1] - The Shanghai Composite Index closed at 3889.5, down 0.19%, while the Shenzhen Component Index closed at 13231.47, down 0.93% [1] Individual Stock Performance - Shangfeng Cement (code: 000672) closed at 11.30, down 3.42% with a trading volume of 492,700 shares and a transaction value of 55.5 million [2] - Other notable declines include Guotong Co. (down 3.14%), Quanzhou Cement (down 2.06%), and Sichuan Jinding (down 1.99%) [2] - In contrast, Xizang Tianlu (code: 600326) showed a slight increase of 0.39% [1] Capital Flow Analysis - The cement sector saw a net outflow of 292 million from institutional investors, while retail investors contributed a net inflow of 270 million [2][3] - The main capital inflow was observed in Huaxin Cement, which had a net inflow of 16.27 million from institutional investors [3] - Conversely, Shangfeng Cement experienced a net outflow of 2.63 million from retail investors [3]