Group 1 - A-shares experienced significant market activity with 77 stocks hitting the daily limit up and 14 stocks hitting the limit down on February 4 [1] - The coal sector showed strong performance, with companies like Lu'an Environmental Energy and Jinkong Coal Industry reaching the limit up [1] - The civil aviation sector also performed well, with Huaxia Airlines and China Eastern Airlines hitting the limit up [1] Group 2 - Notable continuous gainers included *ST Lifang with 6 limit ups over 9 days, and ST Jinglan with 6 limit ups over 8 days [1] - Other stocks with consecutive gains included Hangzhou Electric, Mingdiao Co., and Tiantong Co., each achieving multiple limit ups [1] - Conversely, *ST Wanfa faced a continuous decline with 17 consecutive limit downs, while *ST Jinglun and *ST Chuntian also experienced multiple days of limit downs [1]

Group 1 - A-shares saw a total of 53 stocks hitting the daily limit up and 13 stocks hitting the daily limit down during the first half of the trading day on February 4 [1] - The coal sector was notably active, with stocks such as Yanzhou Coal Mining and Jinko Energy reaching the daily limit up [1] - The civil aviation sector also showed strength, with Huaxia Airlines and China Eastern Airlines hitting the daily limit up [1] Group 2 - ST Jinglan achieved 6 consecutive limit ups over 8 days, while Hangzhou Electric and Mingdiao Co. recorded 4 consecutive limit ups [1] - Other stocks with consecutive limit ups include Tiantong Co. with 3 limit ups over 4 days, and ST Jingji, Minbao Optoelectronics with 3 consecutive limit ups [1] - Companies like CIMC and Yinlun Co. experienced 2 consecutive limit ups, while China Shipbuilding Technology and Hongsheng Huayuan reached the daily limit up [1] Group 3 - ST Wanfang faced a continuous decline with 17 consecutive limit downs, while ST Jinglun and ST Chuntian experienced 7 and 5 consecutive limit downs respectively [1] - ST Haihua and ST Guohua both faced 4 and 3 consecutive limit downs, respectively, along with ST Jieneng and other companies like Xishanghai and Wanfeng Co. also hitting the daily limit down [1]