Core Viewpoint - Shenzhen Invech Technology Co., Ltd. has announced the cancellation of 663,751 stock options from its 2022 stock option incentive plan, which were granted but not exercised, in compliance with relevant regulations [1][2]. Group 1 - The company held its 19th meeting of the 4th Board of Directors and the 19th meeting of the 4th Supervisory Board on August 18, 2025, where the proposal to cancel part of the stock options was approved [1]. - A total of 24 qualified individuals are affected by this cancellation, which involves stock options that have not yet been exercised [1][2]. - The cancellation of these stock options does not impact the company's capital structure and will not have a significant effect on its financial status or operational results [2]. Group 2 - The cancellation process is in accordance with the "Management Measures for Equity Incentives of Listed Companies" and the company's 2022 stock option incentive plan [2]. - The company has submitted the cancellation application to the Shenzhen branch of China Securities Depository and Clearing Corporation Limited, and the cancellation has been confirmed [1]. - The ongoing implementation of the 2022 stock option incentive plan remains unaffected by this cancellation [2].

证券代码：002837 证券简称：英维克 公告编号：2025-048 深圳市英维克科技股份有限公司 关于部分股票期权注销完成的公告 本公司及董事会全体成员保证信息披露内容的真实、准确和完整，没有虚假记载、 误导性陈述或重大遗漏。 深圳市英维克科技股份有限公司（以下简称"公司"或"本公司"）于 2025 年 8 月 18 日召开了第四届董事会第十九次会议和第四届监事会第十九次会议，审议通过了 《关于注销部分股票期权的议案》。根据《上市公司股权激励管理办法》及公司《2022 年股票期权激励计划（草案）》的相关规定以及 2022 年第一次临时股东大会的授权， 2022 年股票期权激励计划中因激励对象离职以及部分激励对象因个人层面年度考核不 合格共 24 名，董事会拟注销其 2022 年股票期权激励计划中已获授但尚未行权的股票 期权 66.3751 万份。具体内容详见公司在巨潮资讯网（www.cninfo.com.cn）、《证券 时报》登载的《关于注销部分股票期权的公告》（公告编号：2025-043）。 公司已向中国证券登记结算有限责任公司深圳分公司（以下简称"中登公司"） 提 交注销上述股票期权的申请，截至本公告披 ...

Core Viewpoint - The A-share market experienced mixed performance with a slight increase in the Shanghai Composite Index and a decrease in other indices, indicating a cautious market sentiment amid significant capital outflows [2][3]. Group 1: Market Overview - As of August 21, the Shanghai Composite Index closed at 3771.1 points, up 0.13%, while the Shenzhen Component Index fell by 0.06% to 11919.76 points, and the ChiNext Index decreased by 0.47% to 2595.47 points [2]. - The total trading volume in the A-share market reached 24608.75 billion yuan, an increase of 119.54 billion yuan compared to the previous trading day [2]. Group 2: Capital Flow Analysis - The A-share market saw a net outflow of 516.92 billion yuan in main funds, with an opening net outflow of 176.82 billion yuan and a closing net outflow of 85.71 billion yuan [3][4]. - The CSI 300 index experienced a net outflow of 92.57 billion yuan, while the ChiNext saw a net outflow of 226.22 billion yuan and the Sci-Tech Innovation Board had a net outflow of 4.78 billion yuan [5][6]. Group 3: Sector Performance - Among the primary sectors, the public utilities sector led with a net inflow of 32.68 billion yuan, followed by the banking sector with 31.96 billion yuan, and the oil and petrochemical sector with 17.58 billion yuan [7][8]. - The sectors with the highest net outflows included electronics with -253.66 billion yuan, machinery with -204.72 billion yuan, and electric equipment with -196.92 billion yuan [8]. Group 4: Institutional Activity - The龙虎榜 data indicated that institutions were active in several stocks, with 中电鑫龙 seeing a net institutional buy of 10,924.03 million yuan, while 恒宝股份 experienced a net sell of 10,980.10 million yuan [10][11]. - Institutions showed interest in stocks like 英维克 and 龙源电力, with target price increases of 26.75% and 12.30%, respectively [12].

【振幅大】 -今日A股共有7只个股振幅超过20%； 【主力资金】 -主力资金今日净流入商贸零售、钢铁等板块，净流出电子、机械设备、电力设备等板块； -中兴通讯、中油资本、京北方、北信源、立讯精密主力资金净流入规模居前，分别净流入19.78亿元、 9.52亿元、8.30亿元、8.28亿元、7.91亿元； -浪潮信息、胜宏科技、东方财富、中际旭创、领益智造主力资金净流出规模居前，分别净流出15.38亿 元、15.17亿元、11.47亿元、8.44亿元、7.55亿元。 【换手率高】 -今日A股共有22只个股换手率超过30%； -华民股份、前进科技、北信源等个股振幅居前； -宏远股份、南方精工、川润股份等个股换手率居前； ...

（原标题：机械设备行业8月21日资金流向日报） 沪指8月21日上涨0.13%，申万所属行业中，今日上涨的有17个，涨幅居前的行业为农林牧渔、石油石化，涨幅分别为1.50%、1.39%。跌幅居前的 行业为机械设备、电力设备，跌幅分别为1.08%、0.98%。机械设备行业位居今日跌幅榜首位。 机械设备行业今日下跌1.08%，全天主力资金净流出82.42亿元，该行业所属的个股共530只，今日上涨的有131只，涨停的有3只；下跌的有392 只，跌停的有2只。以资金流向数据进行统计，该行业资金净流入的个股有157只，其中，净流入资金超5000万元的有8只，净流入资金居首的是神 开股份，今日净流入资金2.39亿元，紧随其后的是中国中车、罗博特科，净流入资金分别为1.49亿元、1.46亿元。机械设备行业资金净流出个股 中，资金净流出超亿元的有22只，净流出资金居前的有英维克、东方精工、利欧股份，净流出资金分别为6.08亿元、5.69亿元、4.82亿元。（数据 宝） 机械设备行业资金流入榜 | 代码 | 简称 | 今日涨跌幅（%） | 今日换手率（%） | 主力资金流量（万元） | | --- | --- | --- | - ...

Group 1 - The core viewpoint of the article highlights the volatility of the stock of Invec (002837.SZ), which surged to a historical high of 71.6 yuan before experiencing a significant drop of 9.11% to 62.99 yuan shortly after opening [1] - The stock has seen a cumulative increase of 131.6% year-to-date, indicating strong market interest in liquid cooling technology [1] - The announcement by CoreWeave, a major cloud service provider, regarding the deployment of NVIDIA's GB300NVL72 system marks a significant milestone in the liquid cooling server market, as it requires a full liquid cooling design due to its high power output of 120kW per cabinet [1] Group 2 - Since July, the liquid cooling server index has risen over 34%, reflecting growing enthusiasm for this technology within the market [1] - Despite the excitement surrounding liquid cooling servers, there are concerns about potential irrational speculation, suggesting that investors should approach this market trend with caution [1]

Core Viewpoint - The report from Open Source Securities on August 21 recommends a "buy" rating for Invec (002837.SZ, latest price: 64.58 CNY) based on its long-standing collaboration with Intel and significant growth in R&D investment and contract liabilities [2] Group 1 - The company has a long-standing partnership with Intel, with multiple liquid cooling products passing testing and certification [2] - There is a strong emphasis on R&D investment, leading to a substantial increase in product and contract liabilities, indicating accelerated capacity expansion [2] - The report highlights potential risks, including intensified competition in the energy storage temperature control industry and lower-than-expected growth in the volume of air-cooled and liquid-cooled products for data centers [2]

Core Viewpoint - The stock of Invec (002837.SZ) surged to a historical high of 71.6 yuan, marking a year-to-date increase of 131.6%, before experiencing a decline of 9.11% to 62.99 yuan shortly after opening [1] Group 1: Company Performance - Invec's stock price reached a record high of 71.6 yuan, reflecting strong market interest in liquid cooling technology [1] - The stock experienced a significant drop of 9.11% shortly after reaching its peak, indicating volatility in investor sentiment [1] Group 2: Industry Developments - CoreWeave, a US cloud service provider, announced the deployment of the NVIDIA GB300NVL72 system, becoming the first large-scale AI cloud service provider to offer this service [1] - The GB300NVL72 server features a power capacity of 120kW per cabinet, necessitating a full liquid cooling design due to the limitations of traditional air cooling [1] - The liquid cooling server index has increased by over 34% since July, highlighting growing interest in this technology within the market [1] Group 3: Market Sentiment - Despite the enthusiasm surrounding liquid cooling servers, there are concerns about irrational speculation in the market, suggesting a need for cautious investment approaches [1]

Market Overview - A-shares experienced a significant rise on August 21, with the Shanghai Composite Index nearing 3800 points, but later turned negative with over 3400 stocks declining and a trading volume of 2.12 trillion yuan [1][3] - The trading volume in the Shanghai and Shenzhen markets has surpassed 2 trillion yuan for seven consecutive trading days, marking the second occurrence in the last decade [5] Sector Performance - Digital currency stocks surged, with several stocks hitting the daily limit, while oil and gas stocks also showed strength [3] - The liquid cooling concept stocks faced a sharp decline, with multiple stocks hitting the limit down, indicating a market correction [6][7] Liquid Cooling Sector - The liquid cooling server concept gained popularity, with the liquid cooling index rising over 35% since July, but signs of irrational speculation emerged as some companies unrelated to liquid cooling saw significant stock price increases [11] - Major players like CoreWeave and Huawei have adopted liquid cooling technology, setting a trend in the industry [10] - The market correction in the liquid cooling sector was linked to a broader downturn in related stocks, with significant drops observed in companies like Feilong and Tenglong [7][11] Rare Earth Permanent Magnet Sector - The rare earth permanent magnet sector also began to correct, with stocks like Jintian and Beikong approaching limit down [12] Banking Sector - The banking sector showed resilience, with the banking index rising by 0.59% and a year-to-date increase of over 16% [14] - Key banks such as Agricultural Bank and Postal Savings Bank reported gains, reflecting positive sentiment in the sector [14] Foreign Investment Trends - A-shares have attracted increased foreign investment, with 663 companies disclosing mid-year reports and 139 companies seeing QFII investments [17] - Korean investors have significantly increased their holdings in Chinese stocks, with a nearly 30% rise in their total investment [18][21] - Global hedge funds are rapidly buying Chinese stocks, driven by expectations of interest rate cuts and improved geopolitical conditions [22]

Core Viewpoint - Suda Co., Ltd. has successfully entered the aftermarket for construction machinery through its fluid connection components business, establishing stable partnerships with leading clients in the industry [1] Group 1: Business Performance - The revenue from the shield tunneling machinery pipeline components business has shown steady growth, achieving approximately 28 million yuan in 2022, accounting for 2.6% of total revenue; in 2023 and 2024, the revenue is expected to exceed 60 million yuan, maintaining a stable revenue proportion of around 5.3% [1] - The subsidiary, Saifu Fluid, is projected to achieve approximately 200 million yuan in revenue in 2024, showcasing significant performance [2] Group 2: Strategic Plans - Suda Co., Ltd. plans to pursue two types of strategic mergers and acquisitions when the timing is right: integrating sales channels and production facilities for hydraulic fluid connection components to form a competitive industrial scale, and leveraging opportunities from the mixed ownership reform of state-owned enterprises to deepen its layout through joint ventures or acquisitions of existing repair centers [1] - The company is currently screening potential targets according to its established plan and will strictly fulfill information disclosure obligations regarding future progress [1] Group 3: Business Model - The company primarily acquires orders through bidding and competitive negotiations, with a pricing model that includes agreement pricing for single repair and remanufacturing services, as well as long-term contracts for ongoing cooperation [2] - A specialized service package has been introduced, bundling maintenance, parts supply, repair, and remanufacturing services, with billing based on the customer's coal output [2] - The second-hand equipment rental and sales business involves purchasing or leasing idle equipment, which is then repaired and technically modified before resale or rental, with transaction prices determined through bidding or competitive negotiations [2] Group 4: Competitive Advantage - Saifu Fluid has a significant technical advantage over competitors like Yingweike, with hydraulic system pipeline pressure levels generally reaching 30-40 MPa, much higher than the data center pipeline's sub-1 MPa; additionally, Saifu Fluid has the capability to design and produce stainless steel pipelines, aligning with material requirements in data center applications [2] - The stringent cleanliness standards in hydraulic systems have led Saifu Fluid to maintain higher levels of process control [2]