通信服务板块12月22日跌1.23%，中富通领跌，主力资金净流出13.02亿元

Group 1 - The communication services sector experienced a decline of 1.23% on December 22, with Zhongfutong leading the drop [1] - The Shanghai Composite Index closed at 3917.36, up by 0.69%, while the Shenzhen Component Index closed at 13332.73, up by 1.47% [1] - A detailed table of individual stock performance within the communication services sector is provided [1] Group 2 - On the same day, the communication services sector saw a net outflow of 1.302 billion yuan from major funds, while retail investors contributed a net inflow of 848 million yuan [2] - The net inflow from speculative funds was 454 million yuan [2] - A detailed table of fund flows for individual stocks in the communication services sector is included [2]