非金属材料板块8月28日涨1.18%，石英股份领涨，主力资金净流出2.05亿元

Market Overview - On August 28, the non-metal materials sector rose by 1.18%, with Quartz Co. 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 - Key stocks in the non-metal materials sector showed varied performance: - Quartz Co. (603688) closed at 40.53, up 2.58% with a trading volume of 190,000 shares [1] - Lianrui New Materials (688300) closed at 59.79, up 2.56% with a trading volume of 121,100 shares [1] - Other notable stocks included: - Bingyang Technology (836675) at 12.42, up 1.22% [1] - Qilu Huaxin (830832) at 8.45, up 0.60% [1] - Strength Diamond (301071) at 30.99, up 0.42% [1] Capital Flow - The non-metal materials sector experienced a net outflow of 205 million yuan from institutional investors, while retail investors saw a net inflow of approximately 85.69 million yuan [2] - The capital flow for key stocks included: - Quartz Co. had a net inflow of 2.34 million yuan from institutional investors [3] - Longgao Co. (605086) saw a net outflow of 1.28 million yuan from institutional investors [3] - Strength Diamond experienced a significant net outflow of 20.80 million yuan from institutional investors [3]