证券时报·2025-10-22 04:08Core Viewpoint - The concept of "deep earth economy" has emerged as a market highlight, with several stocks experiencing significant gains, particularly in the context of A-share market fluctuations [2][5][9]. Market Performance - On October 22, the A-share market experienced volatility, with major indices mostly declining. The Shanghai Composite Index fell by 0.44%, the Shenzhen Component Index by 0.81%, and the ChiNext Index by 0.89%. In contrast, the North Star 50 Index rose by 1.19% [4]. - The media sector led the gains, with a peak increase of over 1%, and several stocks, including Hubei Broadcasting, hitting the daily limit [4]. - The real estate sector also showed strength, with multiple stocks such as Yingxin Development and Bright Real Estate reaching their daily limit [4]. Deep Earth Economy - The deep earth economy focuses on the development of underground space and deep resources, encompassing geological exploration, underground engineering, deep drilling equipment, and technical services. This new economic model aims to address the depletion of surface resources and ensure national energy security and strategic development [8][9]. - Stocks related to the deep earth economy, such as Deshi Co., China Minmetals, and North China Holdings, saw significant price increases, with Deshi Co. hitting a 20% limit up [2][5]. Gold Sector Decline - The gold sector faced substantial declines, with multiple gold mining stocks dropping significantly. For instance, Western Gold fell over 6%, and several others saw declines exceeding 5% [11][14]. - The international gold price experienced a sharp drop, with the Shanghai Gold Exchange's Au99.99 contract price falling by over 5%, reaching a low of 932 yuan per gram [14]. New Stock Performance - The newly listed stock Marco Polo saw a dramatic increase, with its price rising over 190% during the morning session [16]. - Marco Polo is recognized as one of the largest manufacturers and sellers of building ceramics in China, with significant production capabilities across multiple locations [19].