橡胶板块10月13日涨0.95%，利通科技领涨，主力资金净流出1.63亿元

Market Overview - On October 13, the rubber sector increased by 0.95% compared to the previous trading day, with Litong Technology leading the gains [1] - The Shanghai Composite Index closed at 3889.5, down 0.19%, while the Shenzhen Component Index closed at 13231.47, down 0.93% [1] Key Stocks Performance - Litong Technology (920225) closed at 27.20, up 22.69% with a trading volume of 210,000 shares and a transaction value of 535 million [1] - Tongcheng New Materials (603650) closed at 47.93, up 8.15% with a trading volume of 375,000 shares and a transaction value of 1.729 billion [1] - Zhen'an Technology (300767) closed at 24.42, up 1.83% with a trading volume of 166,500 shares and a transaction value of 28.6 million [1] - Other notable performances include Zhongyu Technology (920694) at 19.20 (+1.69%), Sanwei Co. (603033) at 11.70 (+0.60%), and Kelon New Materials (920098) at 30.95 (+0.49%) [1] Fund Flow Analysis - The rubber sector experienced a net outflow of 163 million from institutional investors, while retail investors saw a net inflow of 35.82 million [2] - The main stocks with significant fund flow include: - Sanwei Co. (603033) with a net inflow of 2.1873 million from institutional investors [3] - Double Arrow Co. (002381) with a net inflow of 1.0180 million from institutional investors [3] - Yongdong Co. (002753) faced a net outflow of 2.8333 million from institutional investors [3] Summary of Trading Data - The trading data for the rubber sector shows a mix of gains and losses among various stocks, with significant trading volumes and transaction values indicating active market participation [1][2] - The overall sentiment in the rubber sector appears to be cautiously optimistic, with some stocks showing strong performance while others face selling pressure [2][3]