地面兵装板块1月9日涨2.63%，国科军工领涨，主力资金净流出1.72亿元

Market Performance - The ground armament sector increased by 2.63% on January 9, with Guoke Military leading the gains [1] - The Shanghai Composite Index closed at 4120.43, up 0.92%, while the Shenzhen Component Index closed at 14120.15, up 1.15% [1] Individual Stock Performance - Guoke Military (688543) closed at 74.70, up 18.01% with a trading volume of 319,200 shares and a transaction value of 2.293 billion [1] - Galaxy Electronics (002519) closed at 10.43, up 10.02% with a trading volume of 754,800 shares and a transaction value of 783 million [1] - Great Wall Military (601606) closed at 51.97, up 4.48% with a trading volume of 875,400 shares and a transaction value of 4.514 billion [1] - Other notable stocks include Northern Long Dragon (301357) at 153.80, up 4.04%, and Tianzou Equipment (300922) at 25.79, up 3.20% [1] Capital Flow Analysis - The ground armament sector experienced a net outflow of 172 million from institutional investors and 522 million from speculative funds, while retail investors saw a net inflow of 694 million [2] - The capital flow for individual stocks shows that Great Wall Military had a net inflow of 274 million from institutional investors, while Guoke Military had a net inflow of 102 million from retail investors [3] - Galaxy Electronics experienced a net outflow of 278 million from speculative funds, indicating a shift in investor sentiment [3]