Group 1 - The construction and housing sectors are experiencing increased activity, with companies such as Renzhi Co., Ltd. (002629) and Chongqing Construction (600939) hitting the daily limit up [1] - The Director of the Standards and Quotas Department of the Ministry of Housing and Urban-Rural Development, Yao Tianwei, emphasized that building "good houses" does not equate to building "large houses" or "expensive houses," but rather focuses on good design, construction, materials, and services to address pain points in living conditions and enhance housing quality [1] Group 2 - There is a surge of dark pool funds flowing into these stocks, indicating increased investor interest [2]