地面兵装板块10月30日跌3.32%，长城军工领跌，主力资金净流出9.67亿元

Market Overview - The ground armament sector experienced a decline of 3.32% on October 30, with Changcheng Military Industry leading the drop [1] - The Shanghai Composite Index closed at 3986.9, down 0.73%, while the Shenzhen Component Index closed at 13532.13, down 1.16% [1] Stock Performance - Notable stock performances included: - Jieqiang Equipment (300875) rose by 2.01% to a closing price of 48.77 [1] - Changcheng Military Industry (601606) fell by 6.58% to a closing price of 51.82, with a trading volume of 739,200 shares and a turnover of 3.88 billion [2] - Other significant declines included Beifang Changlong (301357) down 5.89% and Tianzuo Equipment (300922) down 4.23% [2] Capital Flow - The ground armament sector saw a net outflow of 966 million yuan from institutional investors, while retail investors contributed a net inflow of 827 million yuan [2][3] - The capital flow for individual stocks showed: - Jieqiang Equipment had a net inflow of 21.72 million yuan from institutional investors [3] - Changcheng Military Industry experienced a net outflow of 73.52 million yuan from institutional investors [3] - Retail investors showed significant interest in stocks like ST Emergency (300527) with a net inflow of 18.69 million yuan [3]