盘中拉升，钢铁板块大爆发

Core Viewpoint - The A-share market experienced narrow fluctuations on the morning of October 30, with major indices showing little overall movement [1][4]. Market Performance - The Shanghai Composite Index fluctuated above 4000 points, while the North Stock 50 Index performed well, with an intraday increase exceeding 2%. The previous trading day saw the North Stock 50 Index rise by 8.41%, marking one of its best trading days of the year [4]. - The steel sector was a highlight, with stocks like Anyang Iron & Steel and Fangda Special Steel reaching their daily limit up, while other companies such as New Steel Co., Liugang Co., and Shagang Group also saw gains [4]. - The coal sector led the gains, with an intraday increase of over 1.4%. Stocks like Huaihe Energy and Huayang Co. were among the top performers [6]. Sector Performance - Electric equipment, non-ferrous metals, transportation, and home appliances saw notable intraday gains [7]. - Conversely, sectors such as telecommunications, comprehensive services, electronics, and building materials experienced declines [8]. - Lithium mining concepts led the market with an intraday increase exceeding 2%, with stocks like XWANDA rising over 14% and Dazhong Mining hitting the daily limit up [8][9]. Stock Adjustments - Several previously popular stocks underwent adjustments, with Tianfu Communication experiencing a significant drop of over 11% intraday [10][11]. - Other stocks like Xinyi Technology and Cambrian Technologies also saw declines, with intraday drops of over 8% and 5%, respectively [12][13].