金属新材料板块8月4日涨1.18%，江南新材领涨，主力资金净流入1.43亿元

Market Performance - The metal new materials sector increased by 1.18% on August 4, with Jiangnan New Materials leading the gains [1] - The Shanghai Composite Index closed at 3583.31, up 0.66%, while the Shenzhen Component Index closed at 11041.56, up 0.46% [1] Stock Highlights - Jiangnan New Materials (603124) closed at 59.96, up 10.00%, with a trading volume of 61,200 lots and a transaction value of 365 million [1] - Longda Co., Ltd. (688231) rose by 7.24% to 21.02, with a trading volume of 84,500 lots and a transaction value of 173 million [1] - Tunan Co., Ltd. (300855) increased by 6.80% to 26.70, with a trading volume of 161,100 lots and a transaction value of 425 million [1] Fund Flow Analysis - The metal new materials sector saw a net inflow of 143 million from institutional investors, while retail investors experienced a net outflow of 118 million [2] - Major stocks like Jiangnan New Materials had a net inflow of 148 million from institutional investors, accounting for 40.71% of the total [3] - Retail investors showed a net outflow of 55.31 million from Jiangnan New Materials, representing a 15.18% decrease [3]