包装印刷板块8月4日涨0.75%，集友股份领涨，主力资金净流出1.3亿元

Core Viewpoint - The packaging and printing sector experienced a 0.75% increase on August 4, with Jiyou Co., Ltd. leading the gains, while the overall market indices also showed positive performance [1]. Group 1: Market Performance - The Shanghai Composite Index closed at 3583.31, up 0.66% [1]. - The Shenzhen Component Index closed at 11041.56, up 0.46% [1]. - The packaging and printing sector stocks showed varied performance, with Jiyou Co., Ltd. rising by 7.28% to a closing price of 10.02 [1]. Group 2: Individual Stock Performance - Jiyou Co., Ltd. (603429) led the sector with a closing price of 10.02 and a trading volume of 237,700 shares, resulting in a transaction value of 230 million yuan [1]. - Other notable performers included: - Haishun New Materials (300501) with a closing price of 16.63, up 3.42% [1]. - Dongfeng Group (601515) with a closing price of 4.38, up 3.30% [1]. - Jinghua Laser (603607) with a closing price of 23.68, up 3.27% [1]. Group 3: Capital Flow - The packaging and printing sector saw a net outflow of 130 million yuan from institutional investors, while retail investors contributed a net inflow of 1.42 billion yuan [2]. - The capital flow for individual stocks indicated that Jiyou Co., Ltd. had a net inflow of 34.56 million yuan from institutional investors, despite a net outflow from retail investors [3].