Market Overview - The ground equipment sector increased by 1.35% on September 19, with Tianqin Equipment leading the gains [1] - The Shanghai Composite Index closed at 3820.09, down 0.3%, while the Shenzhen Component Index closed at 13070.86, down 0.04% [1] Stock Performance - Tianqin Equipment (300922) closed at 27.68, up 10.90% with a trading volume of 245,000 shares and a transaction value of 661 million yuan [1] - Inner Mongolia First Machinery (600967) closed at 19.51, up 2.41% with a trading volume of 909,300 shares and a transaction value of 1.8 billion yuan [1] - Northern Navigation (600435) closed at 14.22, up 2.23% with a trading volume of 480,300 shares and a transaction value of 683 million yuan [1] - Other notable stocks include Northern Long Dragon (301357) at 125.10, up 1.19%, and Zhongbing Hongjian (000519) at 18.14, up 1.00% [1] Capital Flow - The ground equipment sector saw a net inflow of 391 million yuan from institutional investors, while retail investors experienced a net outflow of 307 million yuan [2] - The main capital flow data indicates that Inner Mongolia First Machinery had a net inflow of 188 million yuan from institutional investors [3] - Tianqin Equipment also saw a significant net inflow of 75 million yuan from institutional investors, despite a net outflow of 35 million yuan from retail investors [3]