Market Overview - The glass fiber sector experienced a decline of 0.52% on January 27, with Jiuding New Materials leading the drop [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] Stock Performance - Notable gainers in the glass fiber sector included: - Zais Technology (603601) with a closing price of 10.70, up 6.36% and a trading volume of 2.09 million shares, totaling 2.27 billion yuan [1] - Sanxia New Materials (600293) closed at 3.69, up 1.37% with a trading volume of 1.45 million shares, totaling 523 million yuan [1] - Jiuding New Materials (002201) was the biggest loser, closing at 15.03, down 7.68% with a trading volume of 1.49 million shares, totaling 2.23 billion yuan [2] Capital Flow - The glass fiber sector saw a net outflow of 261 million yuan from main funds, while retail investors contributed a net inflow of 293 million yuan [2] - The detailed capital flow for selected stocks showed: - Zais Technology had a main fund net inflow of 253 million yuan, while retail investors had a net outflow of 155 million yuan [3] - Jiuding New Materials experienced a significant net outflow of 208.54 million yuan from main funds [3]