Core Viewpoint - The diamond industry is currently divided into two main applications: structured applications and functional applications, with functional applications including heat sinks and optical window pieces. The demand for diamond heat sinks is expected to rise in the chip manufacturing sector due to the high heat dissipation needs driven by artificial intelligence advancements, potentially shifting diamonds from "optional" to "essential" materials [1] Group 1: Industry Insights - The diamond industry is focusing on functional applications, which are gaining attention due to the increasing heat dissipation requirements in technology sectors [1] - The company has been strategically investing in the diamond functional application sector since 2015, selecting the MPCVD method for its high-quality diamond production and broad compatibility with various product lines [1] Group 2: Company Developments - The company began generating revenue from heat sinks and optical windows in 2023, with expectations to exceed 10 million yuan by 2025 [1] - Currently, the application fields are primarily in non-civilian sectors, while civilian applications are undergoing product testing by leading domestic manufacturers, with test results anticipated by 2026 if progress is favorable [1]

Core Viewpoint - The company aims to enhance its offerings in the bearing sector to support China's commercial aerospace development and expand into high-value products for humanoid robots and superhard materials [1] Group 1: Bearing Sector - The company is focusing on providing components that better serve the needs of commercial aerospace, particularly for key host equipment [1] - There is an emphasis on developing bearings for humanoid robots, specifically targeting high-value products like crossed roller bearings [1] Group 2: Superhard Materials - The company is accelerating its entry into the functional application era of diamond materials, optimizing diamond-copper composite materials [1] - Breakthroughs are being pursued in large-sized optical-grade diamond products [1] Group 3: Future Growth Drivers - Products such as commercial aerospace bearings, humanoid robot bearings, diamond heat sinks, and diamond optical window pieces are expected to be the main drivers of the company's second growth curve [1]

Core Viewpoint - The company, Guojijinggong, reported steady growth in operating performance for the first three quarters of 2025, driven primarily by the wind power bearing business [1] Revenue Summary - The company achieved operating revenue of 2.296 billion yuan, an increase of 490 million yuan, representing a year-on-year growth of 27% [1] - The core products, special and precision bearings, and superhard material grinding tools, saw a combined revenue growth of over 50% year-on-year, mainly due to the growth in the wind power bearing business [1] Profit Summary - The total gross profit for the first three quarters was 797 million yuan, an increase of 130 million yuan, reflecting a year-on-year growth of 20% [1] - The net profit reached 245 million yuan, an increase of 32.65 million yuan, with a year-on-year growth of 15.4% [1] - The attributable net profit to the parent company was 206 million yuan, showing a slight increase compared to the same period last year, affected by the reduction of equity in the superhard materials business from 100% to 67% after the business was injected into Guoji Diamond [1]

Market Overview - On December 23, the Shanghai Composite Index rose by 0.07%, the Shenzhen Component Index increased by 0.27%, and the ChiNext Index gained 0.41% [2] - A total of 58 stocks appeared on the "Dragon and Tiger List" due to significant trading activity, with the highest net inflow of funds recorded for Yingweike (002837.SZ) at 842 million yuan [2][4] Stock Performance - Yingweike saw a net buying amount of 842 million yuan, accounting for 11.07% of the total trading volume, and closed up by 10% with a turnover rate of 9.03% [2][4] - The stock with the highest net outflow was Aerospace Machinery (600151.SH), which experienced a net selling of 515 million yuan, representing 12.02% of the total trading volume, and closed down by 9.98% with a turnover rate of 17.86% [2][5] Institutional Activity - Institutions were active in 35 stocks on the Dragon and Tiger List, with a total net buying of 526 million yuan, comprising 15 net buyers and 20 net sellers [5][6] - The stock with the highest institutional net buying was Duofuduo (002407.SZ), which closed up by 10.02% and had a turnover rate of 16.22% [6] Northbound Capital - Northbound funds participated in 25 stocks on the Dragon and Tiger List, with a total net buying of 561 million yuan [11] - The stock with the highest net buying from northbound funds was Guojijin (002046.SZ), with a net inflow of 238 million yuan, accounting for 6.18% of the total trading volume [11] Common Trends - Both institutions and northbound funds jointly net bought stocks such as Guojijin, Hainan Haiyao, Hongda Electronics, and others, while they jointly net sold stocks like Junda Shares, Tianji Shares, and others [15][16]

国机精工今日下跌6.33%，全天换手率16.90%，成交额38.47亿元，振幅15.06%。龙虎榜数据显示，机构 净买入2.00亿元，深股通净买入2.38亿元，营业部席位合计净卖出3.58亿元。 深交所公开信息显示，当日该股因日振幅值达15.06%上榜，机构专用席位净买入2.00亿元，深股通净买 入2.38亿元。 证券时报·数据宝统计显示，上榜的前五大买卖营业部合计成交13.18亿元，其中，买入成交额为6.99亿 元，卖出成交额为6.19亿元，合计净买入7952.90万元。 资金流向方面，今日该股主力资金净流出6.23亿元，其中，特大单净流出4.96亿元，大单资金净流出 1.27亿元。近5日主力资金净流出3.47亿元。 融资融券数据显示，该股最新（12月22日）两融余额为11.03亿元，其中，融资余额为11.03亿元，融券 余额为3.05万元。近5日融资余额合计减少7141.83万元，降幅为6.08%，融券余额合计增加337.00元，增 幅1.12%。（数据宝） 国机精工12月23日交易公开信息 | 买/卖 | 会员营业部名称 | | 买入金额（万元） | 卖出金额（万元） | | --- | --- | - ...

格隆汇12月23日｜国机精工(002046.SZ)今日跌6.33%，换手率16.9%，成交额38.47亿元。龙虎榜数据显示，深股通买入3.55亿元，卖出1.18亿元，净买入2.38 亿元；四家机构买入3.43亿元，卖出1.44亿元，净买入2亿元；游资"量化打板"位列卖三席位，净卖出8953万元。(格隆汇) | | 买入金额最大的前5名 | | | | | --- | --- | --- | --- | --- | | 序号 | | 交易营业部名称 | 买入金额(万) | 占总成交比例 | | 1 | 深股通专用 | 686次 44.31% 2 | 35528.80 | 9.23% | | 2 | easimoney.com 机构专用 | 1567次 41.10% | 10152.57 | 2.64% | | 3 | 机构专用 | 1567次 41.10% | 9476.93 | 2.46% | | 4 | 机构专用 | 1567次 41.10% | 7821.90 | 2.03% | | 5 | 机构专用 | 1567次 41.10% | 6865.15 | 1.78% | | 序号 | 交易营业部名称 | ...

Core Viewpoint - The continuous decline in the number of shareholders for several companies indicates a trend of increasing concentration of shares, with 118 companies experiencing a decrease for more than three consecutive periods, and some like Yihau New Materials seeing a drop for 12 periods [1] Group 1: Shareholder Trends - A total of 513 companies reported their latest shareholder numbers as of December 20, with 118 companies showing a continuous decline in shareholder numbers for over three periods [1] - Yihau New Materials has the lowest shareholder count at 14,402, down 37.94% over 12 periods, while Kute Intelligent has 32,185 shareholders, down 20.89% over 11 periods [1] - Other companies with significant declines include Dalian Heavy Industry and Jinshi Technology, with respective decreases of 11.90% and 13.33% [1] Group 2: Market Performance - Among the companies with declining shareholder numbers, 27 saw their stock prices increase, while 91 experienced declines, with notable gainers including Shibu Testing (up 64.58%), Guoji Precision Engineering (up 45.98%), and Xianglu Tungsten (up 30.68%) [2] - 29 companies outperformed the Shanghai Composite Index, with Shibu Testing, Guoji Precision Engineering, and Xianglu Tungsten achieving relative returns of 65.46%, 48.43%, and 30.96% respectively [2] Group 3: Industry Distribution - The industries with the highest concentration of companies experiencing declining shareholder numbers include basic chemicals (17 companies), machinery and equipment (14 companies), and pharmaceutical biology (12 companies) [2] - The main board has 74 companies with declining shareholder numbers, while the ChiNext board has 44 [2] Group 4: Institutional Interest - In the past month, 17 companies with declining shareholder numbers were investigated by institutions, with Guoji Precision Engineering, Baowu Magnesium, and Shenzhen Huqiang receiving the most attention, with 6, 4, and 2 investigations respectively [2] - The companies with the highest number of institutional participants in their investigations include Yahua Group (61 institutions), Igor (46 institutions), and Sanyuan Biological (32 institutions) [2]

Financial Performance - In the first three quarters of 2025, the company achieved operating revenue of 2.296 billion yuan, an increase of 490 million yuan, representing a year-on-year growth of 27% [2] - The total gross profit reached 797 million yuan, up by 130 million yuan, with a year-on-year increase of 20% [2] - Net profit was 245 million yuan, an increase of 32.65 million yuan, reflecting a year-on-year growth of 15.4% [2] - The attributable net profit to shareholders was 206 million yuan, showing slight growth compared to the same period last year, impacted by a reduction in equity from 100% to 67% in the superhard materials business [2] Strategic Planning - The company aims to enhance its bearing products to support China's commercial aerospace development and expand into high-value products like cross-roller bearings for humanoid robots [2][3] - In the superhard materials sector, the focus is on advancing diamond functional applications, optimizing diamond-copper composite materials, and breaking through large-size optical-grade diamond production [2][3] Diamond Heat Dissipation Business - The diamond industry is divided into structural and functional applications, with functional applications including heat sinks and optical window pieces [3] - The diamond heat dissipation sector is expected to see growth due to high heat dissipation demands driven by AI, transitioning diamond from an optional to a necessary material [3] - The company began generating revenue from heat dissipation and optical windows in 2023, with expectations to exceed 10 million yuan in 2025, primarily in non-civilian sectors [3] MPCVD Product Development - The development plan for MPCVD products includes three phases: 1. Cultivating diamond rough products (mature stage) 2. Developing diamond heat sinks, optical window pieces, and acoustic membranes (starting phase) 3. Long-term planning for semiconductor materials to replace silicon [3] - Cost reduction strategies include utilizing low-cost electricity in the Xinjiang Hami industrial park and advancing technology across the entire supply chain [3]

Group 1 - The superhard materials index increased by 2% during intraday trading [1] - Among the constituent stocks, Sifangda rose over 7% [1] - World gained 4.12%, Huifeng Diamond increased by 3.86%, Guoji Precision Engineering rose by 3.30%, and Huanghe Xuanfeng went up by 3.05% [1]

证券日报网讯12月22日，国机精工（002046）在互动平台回答投资者提问时表示，截至2025年12月19 日，公司股东人数为44088户。 ...