包装印刷板块7月29日跌0.88%，盛通股份领跌，主力资金净流出4.39亿元

Core Insights - The packaging and printing sector experienced a decline of 0.88% on July 29, with Sheng Tong Co., Ltd. leading the drop [1] - The Shanghai Composite Index closed at 3609.71, up 0.33%, while the Shenzhen Component Index closed at 11289.41, up 0.64% [1] Stock Performance - Jiahe Technology (872392) saw a significant increase of 8.53%, closing at 36.79 with a trading volume of 39,300 lots and a transaction value of 137 million [1] - Other notable gainers included Hujiang Materials (870204) with a 3.87% increase and a closing price of 23.87, and Baixinglong (833075) with a 1.57% increase [1] - Conversely, Sheng Tong Co., Ltd. (002599) led the decline with a drop of 4.52%, closing at 9.30, with a trading volume of 526,900 lots and a transaction value of 494 million [2] - Other decliners included Yinglian Co., Ltd. (002846) and Wangzi New Materials (002735), with declines of 4.24% and 2.12% respectively [2] Capital Flow - The packaging and printing sector saw a net outflow of 439 million from institutional investors, while retail investors contributed a net inflow of 331 million [2] - The overall capital flow indicates a mixed sentiment, with institutional investors pulling back while retail investors showed interest [2] Individual Stock Capital Flow - Jinshi Technology (002951) experienced a net inflow of 5.46 million from institutional investors, while retail investors had a net outflow of 2.36 million [3] - Yongji Co., Ltd. (603058) had a net inflow of 4.70 million from institutional investors, but also saw outflows from retail investors [3] - Dongfeng Group (601515) reported a net inflow of 4.59 million from institutional investors, indicating positive sentiment towards the stock [3]