广告营销板块12月22日跌0.3%，三人行领跌，主力资金净流出2.88亿元

Core Viewpoint - The advertising and marketing sector experienced a decline of 0.3% on December 22, while the overall market indices showed positive performance with the Shanghai Composite Index rising by 0.69% and the Shenzhen Component Index increasing by 1.47% [1] Group 1: Market Performance - The Shanghai Composite Index closed at 3917.36, reflecting an increase of 0.69% [1] - The Shenzhen Component Index closed at 13332.73, showing an increase of 1.47% [1] Group 2: Capital Flow - The advertising and marketing sector saw a net outflow of 288 million yuan from main funds, while retail investors contributed a net inflow of 162 million yuan [2] - Speculative funds recorded a net inflow of 126 million yuan into the advertising and marketing sector [2]