非金属材料板块1月27日涨0.87%，力量钻石领涨，主力资金净流出6894.78万元

Group 1 - The non-metal materials sector increased by 0.87% on January 27, with LiLi Diamond leading the gains [1] - The Shanghai Composite Index closed at 4139.9, up 0.18%, while the Shenzhen Component Index closed at 14329.91, up 0.09% [1] - Key stocks in the non-metal materials sector showed varied performance, with LiLi Diamond closing at 42.79, up 6.10%, and other notable stocks like Bingyang Technology and Lianrui New Materials also showing gains [1] Group 2 - The non-metal materials sector experienced a net outflow of 68.94 million yuan from main funds, while retail investors saw a net inflow of 49.87 million yuan [2] - The stock performance of individual companies showed mixed results, with Lianrui New Materials having a main fund net inflow of 18.46 million yuan, while other companies like Tianma New Materials and Longgao Co. faced net outflows [3] - The overall trading volume and transaction amounts varied significantly among the stocks, with Lianrui New Materials achieving a transaction amount of 4.30 billion yuan [1][2]