共31只个股出现了机构的身影。 当天机构净买入前三的股票分别是四方达、航天发展、通宇通讯，净买入金额分别是5607万元、3897万 元、3458万元。 盘后数据显示，12月3日龙虎榜中，共31只个股出现了机构的身影，有10只股票呈现机构净买入，21只 股票呈现机构净卖出。 当天机构净卖出前三的股票分别是南网数字、平潭发展、航天动力，净流出金额分别是1.88亿元、1.05 亿元、9220万元。 | 星图测控 | -4.98% | -1177.25 | | --- | --- | --- | | 高乐股份 | 10.02% | -1643.75 | | 瑞玛精密 | -10.00% | -1822.98 | | 道明光学 | 10.03% | -1830.91 | | 雷科防务 | -5.50% | -1907.97 | | 华映科技 | 10.02% | -2362.11 | | 亿利达 | 10.04% | -2461.19 | | 顺灏股份 | 9.99% | -3145.94 | | 威领股份 | -5.96% | -3273.39 | | 榕基软件 | -9.27% | -3485.89 | | 清水源 ...

Market Overview - On December 3, the Shanghai Composite Index fell by 0.51%, the Shenzhen Component Index decreased by 0.78%, and the ChiNext Index dropped by 1.12% with a total market turnover of 1.68 trillion yuan, an increase of 763 billion yuan compared to the previous trading day [1] - Over 3,800 stocks declined, while sectors such as cultivated diamonds, coal, and wind power equipment saw gains, whereas AI applications and lithium mining sectors experienced declines [1] Key Stocks Performance - Jinfu Technology experienced a "heaven and earth board" phenomenon, while Haiwang Bio and Hai Xin Food achieved six consecutive trading limits. Daoming Optical closed with a five consecutive trading limit, and commercial aerospace concept stock Shunhao shares saw a four consecutive trading limit [3] - The top three net buying stocks on the daily leaderboard were China Uranium Industry, Guojin Heavy Industry, and Aerospace Power, with net purchases of 419 million yuan, 327 million yuan, and 296 million yuan respectively [4] Notable Stock Movements - China Uranium Industry surged by 280.05% on its first trading day, with a turnover of 8.09 billion yuan and a turnover rate of 77.55% [5] - Guojin Heavy Industry rose by 10.06% to 3.83 yuan, with a turnover of 1.657 billion yuan and a turnover rate of 6.20% [5] - Aerospace Power increased by 6.46% to 25.70 yuan, with a turnover of 5.13 billion yuan and a turnover rate of 32.78% [5] Institutional Activity - The top three net selling stocks were Pingtan Development, Tongyu Communication, and Nanwang Digital, with net sales of 362 million yuan, 354 million yuan, and 207 million yuan respectively [6] - Institutional net buying in stocks included Sifangda, Aerospace Development, and Tongyu Communication, with net purchases of 56.07 million yuan, 38.97 million yuan, and 34.58 million yuan respectively [7] Sector Highlights - Guojin Heavy Industry signed a contract worth 1.339 billion yuan for offshore wind power equipment, accounting for 35.41% of its 2024 revenue [14] - The company reported a significant increase in revenue and net profit for the first three quarters of 2025, with revenue of 4.595 billion yuan and a net profit of 888 million yuan, representing year-on-year growth of 99.2% and 214.6% respectively [14] - Huaying Technology is transitioning towards high-margin products such as automotive displays and industrial control screens, with R&D investment accounting for 10.66% of revenue in the first half of 2025 [18]

Core Viewpoint - The stock of Nanguang Digital experienced a decline of 3.49% with a turnover rate of 38.46%, indicating significant trading activity and potential volatility in the market [2]. Trading Activity - The total trading volume for the day was 2.06 billion yuan, with a price fluctuation of 9.42% [2]. - Institutional investors net sold 188 million yuan, while brokerage seats collectively net sold 19.57 million yuan [2]. - The stock was listed on the Dragon and Tiger list due to its high turnover rate, with institutional proprietary seats contributing to the net selling [2]. Institutional Participation - The top five trading brokerage seats accounted for a total transaction volume of 508 million yuan, with buying transactions amounting to 150 million yuan and selling transactions totaling 358 million yuan, resulting in a net selling of 207 million yuan [2]. - Among the brokerage seats, five institutional proprietary seats were involved, with total buying amounting to 82.43 million yuan and total selling amounting to 270 million yuan, leading to a net selling of 188 million yuan [2]. Fund Flow - The stock saw a net outflow of 50.26 million yuan in main funds, with a significant outflow of 80.10 million yuan from large orders, while smaller orders saw a net inflow of 29.84 million yuan [2]. - Over the past five days, the main funds experienced a net outflow of 796 million yuan [2]. Historical Performance - In the past six months, the stock has appeared on the Dragon and Tiger list six times, with an average price increase of 5.17% the day after being listed and an average decline of 2.92% in the following five days [2].

- The report discusses the IPO performance in November 2025, highlighting that 11 new stocks were listed across the Shanghai, Shenzhen, and Beijing stock exchanges, raising a total of 101.88 billion yuan [2][8] - The average first-day increase for the six new stocks listed on the Shanghai and Shenzhen markets was 209%, with notable variations among individual stocks [2][11] - The report provides a detailed breakdown of the IPO performance by market segment, including the main board, STAR Market, and ChiNext, with specific examples such as Daming Electronics and Hengkun New Materials [11][14] - The report also includes a comprehensive analysis of the monthly IPO subscription returns, with A/B class accounts earning 73.17/71.87 million yuan respectively in November 2025 [14][16] - The report suggests that the "inclusion" strategy remains optimal, recommending active participation in low-priced, small-cap new stocks with high first-day increase potential, as well as large-cap stocks with significant offline allocation [15][17]

证券日报网讯12月2日，南网数字（301638）在互动平台回答投资者提问时表示，为保证所有投资者平 等地获悉公司信息，根据信息披露公平性原则，公司会根据相关规定在定期报告披露股东人数，敬请关 注公司定期报告。公司将严格按照相关法律法规的要求，在股东会召开前通过指定信息披露媒体发布公 告，明确会议时间、召开方式等具体安排，敬请关注。 ...

Core Viewpoint - The company, Nanwang Digital (301638), provides comprehensive digital construction solutions primarily for clients in the electric power and energy sectors, focusing on digital grid, enterprise digitalization, and digital infrastructure [1] Group 1: Business Overview - The company offers three main business systems: digital grid, enterprise digitalization, and digital infrastructure [1] - The Fuxi chip and its modules have been applied in various smart products for medium and low voltage distribution networks, including distribution automation terminals, low-voltage smart switches, and distribution smart gateways [1] Group 2: Product Application - The relevant product information can be found in the company's prospectus [1]

Core Insights - The event "South Network Digital Entering Pengcheng" showcased the company's commitment to digital transformation and innovation in the energy sector [2] - The launch of the "Sihai Zhizi ERP" system represents a significant advancement in digital management for state-owned enterprises, emphasizing a fully domestic and AI-driven approach [2][3] Group 1: Event Overview - The event gathered nearly 150 representatives from various sectors, including state-owned enterprises, technology companies, and academic institutions, to explore innovative paths for digital transformation [2] - Keynote speeches highlighted the development value and core technological capabilities of South Network Digital since its listing [2] Group 2: Sihai Zhizi ERP System - The Sihai Zhizi ERP is tailored for heavy asset industries, integrating ISO55000 asset management and TOGAF enterprise architecture, covering all business modules from investment to human resources [3] - The system features a "middle platform" architecture that enhances the management of asset life cycles and provides a viable path for hardware and software replacement in key national industries [3] Group 3: AI Integration and Functionality - The ERP system has developed over 150 AI application scenarios, including intelligent analysis for bidding and supply chain risk inspections, with plans to expand functionalities in 2024 [3][4] - It aims to improve decision-making efficiency through over 60 visual decision-making scenarios and 360 management probes, significantly reducing the burden on operational staff [4] Group 4: Implementation and Future Plans - The Sihai Zhizi ERP has been successfully implemented in several heavy asset enterprises, demonstrating its stability and applicability [5] - South Network Digital plans to deepen the integration of AI with business processes to enhance operational efficiency and market competitiveness for its partners [5]

Group 1 - The core viewpoint of the news highlights the performance of Nanfang Electric Power Digital Network Research Institute Co., Ltd. on December 1, with a stock price drop of 4.00% and a trading volume of 1.689 billion yuan [1] - On December 1, the company had a financing buy-in amount of 117 million yuan, with a net financing buy-in of -8.3957 million yuan, indicating a higher repayment than new financing [1][2] - As of December 1, the total balance of margin trading for Nanfang Electric Power Digital is 322 million yuan, accounting for 5.77% of its circulating market value [2] Group 2 - The company was established on March 31, 2017, and is located in Guangzhou, Guangdong Province, with its main business segments including digital grid, enterprise digitalization, and digital infrastructure [2] - The revenue composition of the company includes: digital grid IoT sensing devices (30.37%), digital grid intelligent operation systems (18.11%), enterprise operation management systems (15.76%), cloud-integrated infrastructure (13.48%), data center (IDC) business (11.33%), enterprise asset management systems (10.54%), and other businesses [2] - As of November 18, the number of shareholders reached 201,700, a significant increase of 1,440,400% compared to the previous period, with an average of 1,165 circulating shares per person [3] Group 3 - For the period from January to September 2025, the company achieved a revenue of 2.779 billion yuan, representing a year-on-year growth of 31.88%, while the net profit attributable to the parent company was 158 million yuan, showing a substantial increase of 464.76% [3]

格隆汇12月2日丨南网数字(301638.SZ)在投资者互动平台表示，公司主要为电力能源等行业客户提供数 字化建设综合解决方案，包括电网数字化、企业数字化和数字基础设施三大业务体系。目前伏羲芯片及 其模组已在配电自动化终端、低压智能开关、配电智能网关等中低压配网智能产品上有所应用。 ...

- The report introduces a quantitative model for calculating IPO returns based on the formula: **Single account IPO return = min(account size, subscription limit) * winning rate * return rate** **A/B class investors full subscription return = subscription limit * A/B class offline winning rate * return rate** The winning rate considers actual offline IPO results, and the return rate is calculated using the first-day average transaction price relative to the issue price for registered IPOs, or the average transaction price on the opening day for non-registered IPOs[42][43][48] - The model evaluates IPO returns across different market segments (Main Board, ChiNext, STAR Market) and investor classes (A/B). For November 2025, the calculated IPO return rates for a 5-billion-scale account are: **Main Board:** A class: 0.037%, B class: 0.035% **ChiNext:** A class: 0.058%, B class: 0.058% **STAR Market:** A class: 0.046%, B class: 0.045%[43][44][47] - The cumulative IPO return rates for 2025 are: **A class:** 1.716% **B class:** 1.399% These values are based on a 5-billion-scale account participating in all IPOs during the year[49][50][51] - Full subscription returns for November 2025 are calculated as follows: **Main Board:** A class: 19 million yuan, B class: 17.9 million yuan **ChiNext:** A class: 31.3 million yuan, B class: 31.2 million yuan **STAR Market:** A class: 22.8 million yuan, B class: 22.6 million yuan[52][53][55]