Group 1 - The automation equipment sector experienced a slight decline of 0.03% on July 31, with Lechuan Technology leading the losses [1] - The Shanghai Composite Index closed at 3573.21, down 1.18%, while the Shenzhen Component Index closed at 11009.77, down 1.73% [1] - Notable gainers in the automation equipment sector included Jiechang Drive, which rose by 6.95% to a closing price of 37.70, and Dongjie Intelligent, which increased by 6.79% to 11.80 [1] Group 2 - The main funds in the automation equipment sector saw a net inflow of 171 million yuan, while retail investors experienced a net outflow of 14.87 million yuan [2] - The top individual stocks by main fund inflow included Jiechang Drive with a net inflow of 263 million yuan, representing 17% of its trading volume [3] - Dongjie Intelligent had a main fund inflow of 60.42 million yuan, accounting for 8.17% of its trading volume, despite a retail net outflow of 93.51 million yuan [3]