房屋建设板块12月22日跌0.53%，重庆建工领跌，主力资金净流出7216.98万元

Group 1 - The housing construction sector experienced a decline of 0.53% compared to the previous trading day, with Chongqing Construction leading the drop [1] - On the same day, 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 housing construction sector is provided [1] Group 2 - In terms of capital flow, the housing construction sector saw a net outflow of 72.17 million yuan from main funds, while speculative funds had a net inflow of 56.89 million yuan, and retail investors contributed a net inflow of 15.27 million yuan [2] - A detailed table of capital flow for individual stocks in the housing construction sector is included [2]