出版板块12月19日涨0.81%，荣信文化领涨，主力资金净流入9778.36万元

Group 1 - The publishing sector increased by 0.81% compared to the previous trading day, with Rongxin Culture leading the gains [1] - The Shanghai Composite Index closed at 3890.45, up by 0.36%, while the Shenzhen Component Index closed at 13140.22, up by 0.66% [1] - Detailed stock performance within the publishing sector is provided in a table format [1] Group 2 - The publishing sector saw a net inflow of main funds amounting to 97.78 million yuan, while retail funds experienced a net outflow of 32.45 million yuan [2] - The net outflow of speculative funds was recorded at 65.33 million yuan [2] - A table detailing the fund flow for individual stocks in the publishing sector is included [2]