航天装备板块9月18日跌0.34%，新余国科领跌，主力资金净流出3.24亿元

Market Overview - The aerospace equipment sector experienced a decline of 0.34% on September 18, with Xinyu Guoke leading the losses [1] - The Shanghai Composite Index closed at 3831.66, down 1.15%, while the Shenzhen Component Index closed at 13075.66, down 1.06% [1] Stock Performance - Notable stock performances include: - Ligong Navigation (688282) rose by 2.54% to a closing price of 44.49 [1] - Xinyu Guoke (300722) fell by 3.28% to a closing price of 31.24 [1] - China Satellite (600118) decreased by 2.65% to a closing price of 35.58 [1] Capital Flow - The aerospace equipment sector saw a net outflow of 324 million yuan from institutional investors, while retail investors contributed a net inflow of 276 million yuan [1] - The detailed capital flow for individual stocks indicates: - China Satcom (601698) had a significant net outflow of 112 million yuan from institutional investors [2] - Xinyu Guoke (300722) experienced a net outflow of 50 million yuan from institutional investors [2] - Ligong Navigation (688282) had a minor net inflow of 799,900 yuan from institutional investors [2]