Zheng Xing Xing Ye Ri Bao·2025-12-30 08:56Group 1 - The chemical fiber sector experienced a 0.46% increase on December 30, with N Shuangxin leading the gains [1] - The Shanghai Composite Index closed at 3965.12, showing no change, while the Shenzhen Component Index rose by 0.49% to 13604.07 [1] - N Shuangxin's stock price surged by 187.30% to 19.68, with a trading volume of 1.4599 million shares and a transaction value of 30.45 billion [1] Group 2 - The chemical fiber sector saw a net inflow of 35.49 million from institutional investors, while retail investors experienced a net outflow of 810 million [2][3] - The top stocks in the sector included Xin Fengming, which rose by 7.86% to 19.90, and Shenma Co., which increased by 3.31% to 9.35 [1] - The overall trading volume for the chemical fiber sector was significant, with N Shuangxin leading in both net inflow and trading activity [3]