Market Overview - On August 28, the rubber sector increased by 0.33% compared to the previous trading day, with Yanggu Huatai leading the gains [1] - The Shanghai Composite Index closed at 3843.6, up 1.14%, while the Shenzhen Component Index closed at 12571.37, up 2.25% [1] Stock Performance - Notable gainers in the rubber sector included: - Yanggu Huatai (300121) with a closing price of 15.13, up 6.32% and a trading volume of 431,300 shares, totaling 644 million yuan [1] - Sanwei Equipment (831834) closed at 14.63, up 3.83% with a trading volume of 29,800 shares, totaling 43.08 million yuan [1] - Litong Technology (832225) closed at 25.55, up 2.82% with a trading volume of 54,200 shares, totaling 136 million yuan [1] Fund Flow Analysis - The rubber sector experienced a net outflow of 169 million yuan from institutional investors, while retail investors saw a net inflow of 134 million yuan [2] - Key stocks with significant fund flows included: - Yanggu Huatai had a net inflow of 44.64 million yuan from institutional investors, but a net outflow of 34.99 million yuan from retail investors [3] - Kexin Technology (300731) saw a net inflow of 26.39 million yuan from institutional investors, with a net outflow of 31.28 million yuan from retail investors [3]