玻璃玻纤板块9月3日跌1.27%，山东玻纤领跌，主力资金净流出3.55亿元

Market Overview - The glass fiber sector experienced a decline of 1.27% on September 3, with Shandong Glass Fiber leading the drop [1] - The Shanghai Composite Index closed at 3813.56, down 1.16%, while the Shenzhen Component Index closed at 12472.0, down 0.65% [1] Stock Performance - Key stocks in the glass fiber sector showed varied performance, with 中材科技 (China National Materials) increasing by 0.70% to close at 32.97, while 山东玻纤 (Shandong Glass Fiber) fell by 6.68% to 7.68 [2][1] - Other notable declines included 旗滨集团 (Qibin Group) down 0.63%, 金晶科技 (Jinjing Technology) down 1.24%, and 中国巨石 (China Jushi) down 1.59% [1][2] Trading Volume and Capital Flow - The glass fiber sector saw a net outflow of 355 million yuan from institutional investors, while retail investors contributed a net inflow of 293 million yuan [2] - The trading volume for 中材科技 was 356,400 shares with a transaction value of 1.178 billion yuan, while 山东玻纤 had a trading volume of 181,900 shares with a transaction value of 143 million yuan [2][1] Investor Sentiment - Institutional investors showed a negative sentiment towards several stocks, with notable outflows from 北玻股份 (North Glass) and 再升科技 (Zai Sheng Technology) [3] - Retail investors, however, displayed a more positive sentiment towards certain stocks, with significant inflows into 九鼎新材 (Jiu Ding New Materials) [3]