玻璃玻纤板块1月15日涨3.23%，国际复材领涨，主力资金净流入4.19亿元

Group 1 - The glass and fiberglass sector increased by 3.23% compared to the previous trading day, with International Composite Materials leading the gains [1] - The Shanghai Composite Index closed at 4112.6, down 0.33%, while the Shenzhen Component Index closed at 14306.73, up 0.41% [1] - Key stocks in the glass and fiberglass sector showed significant price increases, with International Composite Materials rising by 7.03% to a closing price of 7.76, and China Jushi increasing by 4.38% to 18.33 [1] Group 2 - The glass and fiberglass sector saw a net inflow of 419 million yuan from institutional investors, while retail investors experienced a net outflow of 490 million yuan [2] - The trading volume for International Composite Materials was 2.56 million shares, with a transaction value of 2.01 billion yuan [1] - The stock with the highest decline was Zai Sheng Technology, which fell by 10.03% to a closing price of 10.67 [2] Group 3 - Major stocks like Zhongcai Technology and Honghe Technology had varying net inflows and outflows, with Zhongcai Technology seeing a net inflow of 385 million yuan from institutional investors [3] - The net outflow for retail investors in Zhongcai Technology was 273 million yuan, indicating a significant divergence in investor sentiment [3] - The overall market sentiment in the glass and fiberglass sector reflects a mixed response, with some stocks experiencing strong institutional support while others faced retail selling pressure [3]