Zheng Xing Xing Ye Ri Bao·2025-12-31 08:59Group 1 - The packaging and printing sector increased by 0.88% on December 31, with Shunhao Co., Ltd. leading the gains [1] - The Shanghai Composite Index closed at 3968.84, up 0.09%, while the Shenzhen Component Index closed at 13525.02, down 0.58% [1] - Key stocks in the packaging and printing sector showed significant price increases, with Shunhao Co., Ltd. rising by 10.02% to a closing price of 18.33 [1] Group 2 - The packaging and printing sector experienced a net inflow of 6.57 billion yuan from main funds, while retail investors saw a net outflow of 1.66 billion yuan [2] - Major stocks like Shunhao Co., Ltd. and Wangzi New Materials attracted significant main fund inflows, with Shunhao Co., Ltd. receiving 760 million yuan [3] - Retail investors showed a negative trend in several stocks, with notable outflows from Shunhao Co., Ltd. and Wangzi New Materials [3]