包装印刷板块2月2日跌2.61%，集友股份领跌，主力资金净流出3.55亿元

Market Overview - The packaging and printing sector experienced a decline of 2.61% on February 2, with Jiyou Co., Ltd. leading the drop [1] - The Shanghai Composite Index closed at 4015.75, down 2.48%, while the Shenzhen Component Index closed at 13824.35, down 2.69% [1] Individual Stock Performance - Notable gainers included: - Fangda New Materials (Code: 920163) with a closing price of 15.76, up 2.34% [1] - Yongji Co., Ltd. (Code: 603058) with a closing price of 11.07, up 1.10% [1] - Significant decliners included: - Jiyou Co., Ltd. (Code: 603429) with a closing price of 10.16, down 10.01% [2] - Hongyu Packaging Materials (Code: 920274) with a closing price of 27.40, down 5.78% [2] Trading Volume and Capital Flow - The packaging and printing sector saw a net outflow of 355 million yuan from institutional investors, while retail investors had a net inflow of 169 million yuan [2] - The trading volume for notable stocks included: - Jiyou Co., Ltd. with a trading volume of 35,800 shares and a transaction amount of 36.41 million yuan [2] - Yongji Co., Ltd. with a trading volume of 137,300 shares and a transaction amount of 151 million yuan [1] Capital Inflow Analysis - Key stocks with significant capital inflow included: - Xianggang Technology (Code: 603499) with a net inflow of 24.48 million yuan from institutional investors [3] - Yongji Co., Ltd. with a net inflow of 22.96 million yuan from institutional investors [3] - Stocks with notable retail investor activity included: - Yudong Technology (Code: 002831) with a net inflow of 21.61 million yuan from retail investors [3] - Zhongrui Co., Ltd. (Code: 002374) with a net inflow of 11.34 million yuan from institutional investors [3]