午间涨跌停股分析：57只涨停股、4只跌停股，PEEK材料概念活跃，天赐材料2连板，肇民科技、新瀚新材等涨停

Group 1 - A-shares saw significant activity with 57 stocks hitting the daily limit up and 4 stocks hitting the limit down on September 8 [1] - PEEK materials concept was active, with Tian Ci Materials achieving a consecutive limit up, and Zhaomin Technology and Xinhan New Materials also hitting the limit up [1] - The reducer concept strengthened, with Yokogawa Precision achieving a consecutive limit up and Ningbo Dongli hitting the limit up [1] Group 2 - *ST Weir has achieved 7 limit ups in 10 days, while Jimin Health has 5 limit ups in 9 days [1] - Other notable stocks include Zhongyuan Home with 4 limit ups in 5 days, and Shoukai Shares with 4 consecutive limit ups [1] - Stocks like Tianji Shares and Jianbang Shares have achieved 3 limit ups, while *ST Jinbi has 2 limit ups in 4 days [1] Group 3 - *ST Gaohong has faced a continuous decline with 21 consecutive limit downs, alongside *ST Yuancheng and Zhongzhi Holdings also hitting the limit down [2] - The MACD golden cross signal has formed, indicating a positive trend for certain stocks [3]