电池板块7月29日涨1.15%，正业科技领涨，主力资金净流出23.44亿元

Group 1 - The battery sector increased by 1.15% compared to the previous trading day, with Zhengye Technology leading the gains [1] - The Shanghai Composite Index closed at 3609.71, up 0.33%, while the Shenzhen Component Index closed at 11289.41, up 0.64% [1] Group 2 - In terms of capital flow, the battery sector experienced a net outflow of 2.344 billion yuan from main funds, while retail investors contributed a net inflow of 1.874 billion yuan [2] - Speculative funds saw a net inflow of 470 million yuan into the battery sector [2]