午间涨跌停股分析：57只涨停股、5只跌停股，医药商业概念走强，合富中国12天11板

Group 1 - A-shares saw a total of 57 stocks hitting the daily limit up and 5 stocks hitting the limit down during the half-day session on November 12 [1] - The pharmaceutical commercial sector showed strong performance, with companies like HeFu China achieving 11 limit ups in 12 days, Renmin Tongtai achieving 3 consecutive limit ups, and Yao Yi Gou hitting the limit up [1] - Notable continuous limit up stocks include *ST Dongyi with 22 limit ups in 27 days, ST Zhongdi with 19 consecutive limit ups, and *ST Baoying with 12 limit ups in 15 days [1] Group 2 - Several stocks experienced consecutive limit downs, including *ST Wan Fang with 6 consecutive limit downs, along with Hengji Daxin, Jingquan Hua, and Chengxing Shares also hitting the limit down [1]