包装印刷板块12月15日涨0.16%，宏裕包材领涨，主力资金净流出5.35亿元

Market Performance - The packaging and printing sector increased by 0.16% on December 15, with Hongyu Packaging leading the gains [1] - The Shanghai Composite Index closed at 3867.92, down 0.55%, while the Shenzhen Component Index closed at 13112.09, down 1.1% [1] Top Gainers - Hongyu Packaging (code: 920274) closed at 31.83, up 11.02% with a trading volume of 78,000 shares and a transaction value of 244 million yuan [1] - Zhongrui Co. (code: 002374) closed at 4.04, up 10.08% with a trading volume of 1,012,200 shares and a transaction value of 402 million yuan [1] - Yingxing Co. (code: 002752) closed at 8.18, up 8.20% with a trading volume of 1,774,600 shares and a transaction value of 1.447 billion yuan [1] Top Losers - Xinhongze (code: 002836) closed at 15.59, down 9.99% with a trading volume of 80,100 shares and a transaction value of 126 million yuan [2] - Hexing Packaging (code: 002228) closed at 4.12, down 7.83% with a trading volume of 1,155,000 shares and a transaction value of 487 million yuan [2] - Hongbo Co. (code: 002229) closed at 16.08, down 4.80% with a trading volume of 454,100 shares and a transaction value of 734 million yuan [2] Capital Flow - The packaging and printing sector experienced a net outflow of 535 million yuan from institutional investors, while retail investors saw a net inflow of 484 million yuan [2] - The sector's overall capital flow indicates a mixed sentiment among different investor types, with institutional investors withdrawing funds while retail investors increased their positions [2][3] Individual Stock Capital Flow - Yingxing Co. (code: 002752) had a net inflow of 1.27 billion yuan from institutional investors, but saw outflows from both retail and speculative investors [3] - Zhongrui Co. (code: 002374) experienced a net inflow of 66.09 million yuan from institutional investors, with outflows from speculative and retail investors [3] - Hongyu Packaging (code: 920274) had a net inflow of 22.62 million yuan from institutional investors, while speculative investors also contributed positively [3]