航海装备板块10月15日跌0.04%，国瑞科技领跌，主力资金净流出2.41亿元

Market Overview - The marine equipment sector experienced a slight decline of 0.04% on October 15, with Guorui Technology leading the drop [1] - The Shanghai Composite Index closed at 3912.21, up by 1.22%, while the Shenzhen Component Index closed at 13118.75, up by 1.73% [1] Stock Performance - Key stocks in the marine equipment sector showed varied performance, with Hailanxin closing at 19.38, up by 0.41%, and Guorui Technology closing at 15.94, down by 3.22% [1] - The trading volume and turnover for major stocks included: - China Shipbuilding: 35.33, turnover of 2.734 billion [1] - Tianhai Defense: 6.50, turnover of 449 million [1] - Jianglong Shipbuilding: 13.27, turnover of 184 million [1] Capital Flow - The marine equipment sector saw a net outflow of 241 million from institutional investors, while retail investors contributed a net inflow of 76.39 million [1] - Detailed capital flow for selected stocks included: - Tianhai Defense: net inflow of 684,600 from retail, but a net outflow of 4.28 million from institutions [2] - China Shipbuilding: net outflow of 1.05 billion from institutions, with a net inflow of 1.151 billion from retail [2] - Guorui Technology: net outflow of 11.56 million from institutions, with a net inflow of 23.52 million from retail [2]