装修建材板块9月17日涨0.34%，友邦吊顶领涨，主力资金净流出3855.29万元

Group 1 - The renovation and building materials sector increased by 0.34% compared to the previous trading day, with Yibang Diao Ding leading the gains [1] - On the same day, the Shanghai Composite Index closed at 3876.34, up 0.37%, while the Shenzhen Component Index closed at 13215.46, up 1.16% [1] - Key stocks in the renovation and building materials sector showed significant price increases, with Yibang Diao Ding rising by 6.23% to a closing price of 23.36 [1] Group 2 - The main capital flow in the renovation and building materials sector showed a net outflow of 38.55 million yuan from institutional investors, while retail investors contributed a net inflow of 31.46 million yuan [3] - The overall capital flow indicates a mixed sentiment, with retail investors showing interest despite the net outflow from institutional investors [3]