装修建材板块8月18日跌0.15%，万里石领跌，主力资金净流出1.51亿元

Market Overview - The renovation and building materials sector experienced a slight decline of 0.15% on August 18, with Wanli Stone leading the drop [1] - The Shanghai Composite Index closed at 3728.03, up 0.85%, while the Shenzhen Component Index closed at 11835.57, up 1.73% [1] Stock Performance - Notable gainers in the renovation and building materials sector included: - Donghe New Materials (up 6.13% to 13.68) with a trading volume of 62,500 shares and a turnover of 84.89 million yuan - Keshine New Materials (up 5.32% to 14.86) with a trading volume of 59,000 shares and a turnover of 87.08 million yuan - Ruitai Technology (up 4.95% to 12.94) with a trading volume of 136,300 shares and a turnover of 177 million yuan [1] - Wanli Stone saw a significant decline of 3.94%, closing at 29.26 with a trading volume of 154,200 shares and a turnover of 451 million yuan [2] Capital Flow - The renovation and building materials sector experienced a net outflow of 151 million yuan from institutional investors, while retail investors saw a net inflow of 60.79 million yuan [2] - Key stocks with notable capital flows included: - Puhua Co. (net inflow of 22.59 million yuan from institutional investors) [3] - North New Materials (net inflow of 21.72 million yuan from institutional investors) [3] - Three Trees (net inflow of 21.16 million yuan from institutional investors) [3]