基础建设板块10月16日跌1.18%，中国核建领跌，主力资金净流出9.82亿元

Market Overview - On October 16, the infrastructure sector declined by 1.18%, with China Nuclear Engineering leading the drop [1] - The Shanghai Composite Index closed at 3916.23, up 0.1%, while the Shenzhen Component Index closed at 13086.41, down 0.25% [1] Stock Performance - Notable gainers in the infrastructure sector included: - Guosheng Technology (603778) with a closing price of 4.33, up 9.90% [1] - ST Huawang (603007) with a closing price of 6.33, up 4.98% [1] - ST Zhengping (603843) with a closing price of 5.70, up 4.97% [1] - Major decliners included: - China Nuclear Engineering (601611) with a closing price of 11.44, down 7.59% [2] - Xinjiang Communications Construction (002941) with a closing price of 19.32, down 6.17% [2] - ST Yuancheng (603388) with a closing price of 1.35, down 4.93% [2] Capital Flow - The infrastructure sector experienced a net outflow of 9.82 billion yuan from institutional investors, while retail investors saw a net inflow of 7.59 billion yuan [2][3] - Key stocks with significant capital flow included: - Guosheng Technology (603778) with a net inflow of 33.33 million yuan from institutional investors [3] - Hongrun Construction (002062) with a net inflow of 29.68 million yuan from institutional investors [3] - ST Lingnan (002717) with a net inflow of 15.89 million yuan from institutional investors [3]