Group 1 - The deep earth economy is emerging as a new economic growth engine, focusing on the development of deep earth resources and related industries, including exploration, underground space construction, core equipment manufacturing, and technical services [2][3] - The Ministry of Natural Resources has indicated plans to accelerate the standardization of emerging industries in deep sea and deep earth, leading to increased market activity and investment interest [1][2] - The deep earth economy is projected to reach a market size of over 5 trillion yuan in China between 2026 and 2030, with an initial commercialization growth rate of 40% [2] Group 2 - Several companies in the A-share market are actively responding to the strategic opportunities presented by the deep earth economy, with firms like Yipuli and Surveying and Mapping Co. expressing their commitment to developing technologies related to deep earth resource exploration [3] - China Communications Construction Company is leading a consortium focused on deep underground space utilization, achieving significant advancements in geological exploration and construction technologies [4] - Some companies, such as Construction Industry, Chujian New Materials, and Baotailong, have clarified that they are not involved in deep earth economy-related businesses [4] Group 3 - The deep earth economy sector is characterized by varying competitive landscapes across its value chain, with high market concentration in upstream equipment manufacturing due to technical barriers, moderate concentration in midstream development, and low concentration in downstream application services [3] - The exploration of deep earth resources has significant potential, with China's deep and ultra-deep oil and gas resources estimated at 671 million tons of oil equivalent, representing about 34% of the country's total oil and gas resources [2] - Recent breakthroughs in deep earth exploration, such as the drilling of the Deep Earth Sichuan Well, have marked significant progress in the field, indicating the potential for further advancements in energy exploration [2]

Market Overview - On October 23, the three major A-share indices closed higher, with the Shanghai Composite Index rising by 0.22% to 3922 points, the Shenzhen Component Index also up by 0.22%, and the ChiNext Index increasing by 0.09%, with nearly 3000 stocks gaining [1] Sector Performance - Market focus was on local Shenzhen stocks, coal, and quantum technology sectors, while superhard materials and cultivated diamond sectors saw declines [1] - Notable stocks included: - Daya Energy (600403) up by 10.01% with a focus on energy strategic restructuring and coal mining [2] - AnTai Group (600408) up by 10.00% benefiting from coal and steel sectors [2] - ShenKai Co. (002278) up by 9.98% linked to deep-sea equipment and robotics concepts [2][14] Trading Activity - The top three net buying stocks on the day were: - Keda Guochuang (300520) with a net buy of 139 million yuan, closing up by 20.01% [5][19] - Hezhan Intelligent (603011) with a net buy of 130 million yuan, closing up by 3.77% [5] - Rongxin Culture (301231) with a net buy of 120 million yuan, closing up by 20.01% [5] - The top three net selling stocks were: - Haikan Co. with a net sell of 204 million yuan, closing up by 20.00% [6] - Beiken Energy with a net sell of 96.90 million yuan, closing down by 2.74% [6] - Zhun Oil Co. with a net sell of 1730.49 million yuan, closing down by 8.11% [6] Stock Highlights - AnTai Group reported a trading volume of 6.40 billion yuan with a turnover rate of 20.83%, indicating strong investor interest [9] - ShenKai Co. achieved a trading volume of 16.75 billion yuan with a turnover rate of 37.59%, reflecting robust market performance [14] - Keda Guochuang's trading volume reached 21.00 billion yuan with a turnover rate of 25.76%, showcasing significant market activity [19] Institutional Activity - Institutional net buying was prominent in stocks like Keda Guochuang and Hezhan Intelligent, indicating strong institutional interest in these companies [5][19] - Conversely, stocks like Beiken Energy and Zhun Oil Co. faced significant institutional net selling, suggesting caution among institutional investors [6][19]

Group 1 - The stock of ShenKai Co., Ltd. reached the daily limit, with a turnover rate of 37.59% and a transaction amount of 1.675 billion yuan, showing a volatility of 6.77% [2] - Institutional investors net bought 14.09 million yuan, while the total net purchase from brokerage seats amounted to 36.77 million yuan [2] - The stock was listed on the Shenzhen Stock Exchange due to a daily price deviation of 9.78% and a turnover rate of 37.59% [2] Group 2 - The top five brokerage seats accounted for a total transaction of 463 million yuan, with a buying amount of 257 million yuan and a selling amount of 206 million yuan, resulting in a net purchase of 50.86 million yuan [2] - Among the brokerage seats, one institutional seat was noted, with a buying amount of 25.74 million yuan and a selling amount of 11.65 million yuan, leading to a net purchase of 14.09 million yuan [2] - The stock experienced a net outflow of 189 million yuan in main funds today, with a significant outflow of 148 million yuan from large orders [2]

Core Viewpoint - ShenKong Co., Ltd. (002278.SZ) has experienced a significant stock price increase, achieving a four-day limit-up and reaching a new high not seen in over seven years, with a turnover rate of 37.59% and a transaction volume of 1.675 billion yuan [1] Trading Activity - The top buying entity, "Happy Coast," recorded a net purchase of 95.12 million yuan, while "Quantitative Trading" was the leading seller with a net sale of 66.32 million yuan [1] - The top five buying entities accounted for a total purchase amount of 256.81 million yuan, representing 15.33% of total trading volume, while the top five selling entities had a total sale amount of 205.95 million yuan, accounting for 12.29% of total trading volume, resulting in a net inflow of 50.86 million yuan [1] Market Performance - ShenKong's stock price has shown a remarkable performance, with a notable increase in trading activity and investor interest, as evidenced by the high turnover rate and significant transaction volume [1]

Core Insights - The specialized equipment sector experienced a slight increase of 0.02% on October 23, with Sai Xiang Technology leading the gains [1] - The Shanghai Composite Index closed at 3922.41, up 0.22%, while the Shenzhen Component Index closed at 13025.45, also up 0.22% [1] Sector Performance - Notable gainers in the specialized equipment sector included: - Yunjia Technology (002337) with a closing price of 7.02, up 10.03% and a trading volume of 864,300 shares, totaling 596 million yuan [1] - Shihua Machinery (000852) at 9.34, up 10.01% with a trading volume of 2,720,200 shares, totaling 2.531 billion yuan [1] - Shandong Molong (002490) at 9.36, up 9.99% with a trading volume of 1,097,100 shares, totaling 1 billion yuan [1] Capital Flow - The specialized equipment sector saw a net outflow of 2.135 billion yuan from institutional investors, while retail investors contributed a net inflow of 1.673 billion yuan [2] - The capital flow for specific stocks indicated: - He Dung Intelligent (603011) had a net inflow of 1.011 billion yuan from institutional investors, but a net outflow from retail investors [3] - Lingyun Optics (688400) experienced a net inflow of 82.8594 million yuan from institutional investors [3]

Group 1 - A total of 58 stocks reached the daily limit up today, with 10 stocks achieving consecutive limit ups [1] - 14 stocks attempted to limit up but failed, resulting in a limit up rate of 80% (excluding ST and delisted stocks) [1] - Notable stocks include coal sector stock Daqiao Energy with 8 consecutive limit ups, and Antai Group with 4 limit ups in 6 days [1] Group 2 - Deep Earth Economy concept stocks such as Shenkai Co. and Petrochemical Machinery both achieved 4 consecutive limit ups [1] - M&A and restructuring stock Yingxin Development also recorded 4 consecutive limit ups [1]

Group 1 - Main capital inflow was observed in sectors such as coal, public utilities, media, and social services, while sectors like electronics, telecommunications, computers, and pharmaceuticals experienced capital outflow [1] - Specific stocks that saw significant net inflows include China Nuclear Engineering with 1.166 billion, Sinopec Mechanical with 1.157 billion, and ShenKong Co. with 774 million [1] - In contrast, stocks that faced substantial net outflows include Cambrian Technology with 1.229 billion, New Yisheng with 850 million, and Tianfu Communication with 842 million [1]

Core Insights - The concept of "deep earth economy" has emerged and gained traction in the A-share market, attracting investor attention towards related business developments [1] Company Responses - **Boyin Tech**: The company's anti-corrosion and wear-resistant welding technology can be applied to oil and gas transportation pipelines requiring such technologies [1] - **Meiansen**: The company's products and technologies are primarily used for intelligent safety production in various underground mining spaces. They are actively developing mining robots for autonomous inspections in underground spaces, with steady progress in related R&D [1] - **Beilu Intelligent Control**: The company provides intelligent mining-related software and hardware products and solutions, aligning with national policies in the "deep earth economy" sector and seizing related development opportunities [1] - **China Communications Design**: Leading the deep earth future industry within the China Communications Group, the company has formed an innovative consortium focusing on deep geological exploration, ultra-deep shaft construction, and other technical R&D, achieving significant results [1] - **Metro Design**: The company is engaged in surveying, design, planning consulting, and engineering contracting in fields such as rail transit and municipal projects, participating in various urban underground space development projects [1] - **Suyuan Jingshen**: The company is currently focused on key projects related to deep earth development, including the Zhangxing gas storage facility (Phase I) and a joint venture with Jiangsu Guoxin Group for a 600MW compressed air energy storage project [1] Deep Earth Economy Index - The deep earth economy index has shown no change, with several companies experiencing significant stock price increases, such as: - **Deshi Co.**: 16.80% increase - **Keli Co.**: 12.42% increase - **Zhonghua Rock and Soil**: 10.12% increase - **Construction Machinery**: 10.05% increase [2]

Core Viewpoint - The stock of ShenKai Co., Ltd. experienced an abnormal fluctuation, with a cumulative closing price increase of over 20% over three consecutive trading days from October 20 to October 22, 2025 [1] Summary by Relevant Sections - **Stock Performance** The company's stock price showed a significant increase, with a cumulative rise exceeding 20% over three consecutive trading days [1] - **Company Verification** The company confirmed that there are no corrections or supplements needed for previously disclosed information, and no undisclosed significant information has been found that could impact the stock price [1] - **Operational Status** The company's production and operational conditions remain normal, with no significant changes in the internal or external operating environment [1]

Market Overview - A total of 74 stocks in the A-share market hit the daily limit, with 56 stocks hitting the limit after excluding 18 ST stocks, resulting in an overall limit-hitting rate of 74% [1] Top Performers - The stock with the highest limit-hitting order volume was Yingxin Development, with 2,020,800 hands, followed by Shihua Machinery, ShenKai Co., and CITIC Heavy Industries, with limit-hitting order volumes of 521,900 hands, 417,000 hands, and 411,800 hands respectively [2] - In terms of consecutive limit-hitting days, ST Zhongdi achieved 4 consecutive limits, while Yingxin Development, Shihua Machinery, and ShenKai Co. each had 3 consecutive limits [2] Sector Highlights Oil and Gas - ShenKai Co. is a key supplier of offshore oil and gas equipment in China, with self-developed intelligent wellhead equipment applied in major offshore oil fields [2] - The company has won bids for several offshore oil and gas field projects, indicating strong market positioning [2] Pharmaceuticals - Notable pharmaceutical stocks hitting the limit include Guangji Pharmaceutical, Chenxin Pharmaceutical, Anglikang, and Te Yi Pharmaceutical, with a focus on innovative drug development and production [3] Robotics - The robotics sector saw significant limit-hitting stocks such as Ruineng Technology, Southern Road Machinery, CITIC Heavy Industries, and Saixiang Technology, with advancements in industrial robotics and AI applications [4][5] Oil and Gas Extraction - Key players in oil and gas extraction include Zhun Oil Co., Beiken Energy, and Shihua Machinery, focusing on technology services for oil and gas extraction and enhancing production efficiency [6][7] Institutional Activity - Institutions showed strong buying interest in stocks like Rongxin Culture, with net purchases exceeding 100 million yuan, alongside other notable stocks on the leaderboard [8]