利好！涨停潮！

Core Viewpoint - The A-share market experienced an overall rise on July 21, driven by positive news, with significant gains in sectors such as building materials, steel, and water conservancy construction [1][4]. A-share Market Performance - The A-share market saw major indices rise, with the Shanghai Composite Index reaching a new high during the session. Key sectors leading the gains included building materials, steel, and construction decoration, with the building materials sector experiencing a surge in stocks hitting the daily limit [3][4]. - Notable stocks in the building materials sector that hit the daily limit included Qingsong Jianhua, Qinglong Pipeline, Guotong Shares, and several cement companies [4]. Conceptual Sector Performance - Conceptual sectors such as water conservancy construction, underground pipelines, and prefabricated buildings showed significant increases. A major project, the Yarlung Tsangpo River downstream hydropower project, was inaugurated on July 19, with a total investment of approximately 1.2 trillion yuan [5]. Individual Stock Highlights - Aowei New Materials achieved a nine-day limit-up streak, with a cumulative increase of over 400% since July. The company reported a closing price of 33.47 yuan per share, with a current P/E ratio significantly higher than the industry average [8]. - Meibang Shares and Beihua Shares both experienced limit-up for three consecutive trading days, with Meibang reporting a cumulative price increase of over 20% in two days [9]. - Liugang Shares also saw a limit-up for three consecutive days, with a cumulative increase of 74.15% since July 1, significantly outperforming the steel industry index and the Shanghai Composite Index [10][11]. Hong Kong Market Performance - In the Hong Kong market, Dongfang Electric's stock surged, with an intraday increase exceeding 700%. Other sectors related to hydropower and infrastructure also saw substantial gains [2][12][13].