证券之星消息，8月21日专业服务板块较上一交易日下跌0.22%，胜科纳米领跌。当日上证指数报收于 3771.1，上涨0.13%。深证成指报收于11919.76，下跌0.06%。专业服务板块个股涨跌见下表： | 代码 | 名称 | 收盘价 | 涨跌幅 | 成交量(手) | 成交额(元) | | | --- | --- | --- | --- | --- | --- | --- | | 603373 | 安邦护卫 | 60.30 | 6.27% | 5.57万 | | 3.40亿 | | 300215 | 电科院 | 6.70 | 3.40% | 39.95万 | | 2.66亿 | | 300572 | 安车检测 | 27.34 | 3.01% | 21.92万 | | 5.97亿 | | 301228 | 实朴检测 | 27.75 | 2.21% | 4.90万 | | 1.34亿 | | 688334 | 西高院 | 19.49 | 1.72% | 10.44万 | | 2.07亿 | | 300795 | 米奥会展 | 15.81 | 1.61% | 9.30万 | | 1.48亿 | | 300887 ...

Market Overview - On August 20, the professional services sector rose by 1.23%, led by Shengke Nano, while the Shanghai Composite Index closed at 3766.21, up 1.04%, and the Shenzhen Component Index closed at 11926.74, up 0.89% [1]. Stock Performance - Shengke Nano (688757) closed at 35.80, with a significant increase of 12.40% and a trading volume of 74,600 shares, amounting to a transaction value of 248 million yuan [1]. - Lihe Kexin (002243) saw a rise of 7.57%, closing at 9.24 with a trading volume of 623,300 shares and a transaction value of 562 million yuan [1]. - Other notable performers included Shicun Testing (301228) with a 4.06% increase, closing at 27.15, and Guodian Measurement (002967) with a 2.78% increase, closing at 21.81 [1]. Capital Flow - The professional services sector experienced a net outflow of 35.42 million yuan from institutional investors, while retail investors saw a net outflow of 45.10 million yuan. Conversely, speculative funds recorded a net inflow of 80.52 million yuan [2][3]. - Lihe Kexin (002243) attracted a net inflow of 75.41 million yuan from institutional investors, while it faced a net outflow of 59.20 million yuan from retail investors [3]. - Guodian Measurement (002967) also saw a net inflow of 38.59 million yuan from institutional investors, with retail investors experiencing a net outflow of 16.08 million yuan [3].

格隆汇8月19日丨胜科纳米(688757.SH)在互动平台表示，随着AI技术的发展、半导体国产化进程的持续 深化，包括CPU、GPU在内的逻辑芯片以及存储芯片等将实现快速发展，其他类型的模拟芯片、射频芯 片等也将迎来市场需求回升。同时，AI产业将推动半导体技术朝着先进制程、先进封装等领域持续迭 代，半导体企业在制造工艺、材料运用等将持续开展技术创新。此外，AI服务器对于高频高速信号传 输、芯片高集成度、复杂互连结构以及高效散热有着极高要求，促使高端HDI板（高密度互连板）用量 显著增加。公司具备对AI芯片、HDI板等进行全方位、高精度的分析检测能力，未来公司相关失效分 析、材料分析、可靠性分析业务有望迎来更多发展机遇。 ...

Core Viewpoint - The company, Shengke Nano (688757.SH), operates as a third-party testing and analysis laboratory for the semiconductor industry, providing critical analysis services across the entire semiconductor supply chain, including failure analysis, material analysis, and reliability analysis [1] Group 1: Company Overview - Shengke Nano specializes in high-density interconnect (HDI) board analysis and testing, leveraging its unique advantages in the field due to the increasing demands of AI technology [1] - The company has a professional technical team and advanced testing equipment, enabling comprehensive and high-precision analysis of HDI boards from raw materials to production processes and final product performance [1] Group 2: Industry Trends - The rapid development of AI technology has significantly increased the requirements for high-frequency signal transmission, high integration of chips, complex interconnection structures, and efficient heat dissipation in AI servers, leading to a substantial rise in PCB specifications and demand for high-end HDI boards [1] - The company's PCB analysis and testing business is expected to encounter more opportunities in the future as the industry evolves [1]

Core Viewpoint - The company, Shengke Nano (688757.SH), operates as a third-party testing and analysis laboratory for the semiconductor industry, providing critical analysis services to clients across the entire semiconductor supply chain, including chip design, wafer manufacturing, and PCB manufacturing [1] Group 1: Company Overview - Shengke Nano specializes in failure analysis, material analysis, and reliability analysis for semiconductor clients [1] - The company has a unique advantage in the analysis and testing of HDI (High-Density Interconnect) boards used in AI computing chips [1] Group 2: Industry Trends - The rapid development of AI technology has led to increased demands for high-frequency signal transmission, high integration of chips, complex interconnection structures, and efficient heat dissipation in AI servers [1] - This trend has resulted in significant upgrades in PCB specifications and a marked increase in the usage of high-end HDI boards [1] Group 3: Service Capabilities - The company possesses a professional technical team and advanced testing equipment, enabling comprehensive and high-precision analysis of HDI boards throughout various stages, from raw materials to production processes and final product performance [1] - Shengke Nano aims to identify potential defects and risks in HDI boards, providing clients with high-quality testing reports and optimization recommendations to enhance product quality and production efficiency [1] Group 4: Future Opportunities - The PCB analysis and testing business of the company is expected to encounter more opportunities in the future due to the growing demands in the semiconductor industry [1]

证券之星消息，8月4日专业服务板块较上一交易日上涨0.31%，胜科纳米领涨。当日上证指数报收于 3583.31，上涨0.66%。深证成指报收于11041.56，上涨0.46%。专业服务板块个股涨跌见下表： | 代码 | 名称 | 收盘价 | 涨跌幅 | 成交量(手) | 成交额(元) | | | --- | --- | --- | --- | --- | --- | --- | | 688757 | 胜科纳米 | 29.58 | 7.45% | 6.67万 | | 1.92亿 | | 301228 | 实村检测 | 30.21 | 2.48% | 3.17万 | | 9477.70万 | | 003008 | 开普检测 | 23.04 | 2.45% | 1.84万 | | 4200.29万 | | 300962 | 中金辐照 | 17.58 | 1.97% | 5.63万 | | 9832.36万 | | 600861 | 北京人力 | 21.20 | 1.73% | 5.92万 | | 1.24亿 | | 301508 | 中机认检 | 34.65 | 1.20% | 2.45万 | | 8455.78万 ...

Core Points - In the first seven months of 2025, a total of 59 new companies were listed on the Shanghai Stock Exchange, Shenzhen Stock Exchange, and Beijing Stock Exchange, raising a total of 59.116 billion yuan [1] - Among these, the Sci-Tech Innovation Board saw 8 companies listed, collectively raising 8.117 billion yuan [1] - Seven companies opted for the first set of listing standards, which require a minimum expected market value of 1 billion yuan and specific profit and revenue criteria [1] Company Listings - Yitang Co., Ltd. (688729.SH) was listed on July 8, 2025, raising 2.49748 billion yuan with underwriting fees of 92.2118 million yuan, following the fourth listing standard [2] - Yingstone Innovation (688775.SH) was listed on June 11, 2025, raising 1.93807 billion yuan with underwriting fees of 158.3475 million yuan, adhering to the first listing standard [2] - Hanbang Technology (688755.SH) was listed on May 16, 2025, raising 500.94 million yuan with underwriting fees of 37.2891 million yuan, also following the first listing standard [2] - Other companies listed under the first standard include Shengke Nano (688757.SH), Haibosichuang (688411.SH), Xingfu Electronics (688545.SH), Sikan Technology (688583.SH), and Saifen Technology (688758.SH), with varying amounts raised and underwriting fees [2]

科创50指数今日下跌1.11%，报收1058.57点，科创板全日成交量45.71亿股，成交额1630.19亿元，加权 平均换手率为2.52%。 证券时报·数据宝统计显示，今日可交易科创板股中，132只股收盘上涨，涨幅超过10%的有6只，涨幅 在5%至10%的有13只，收盘下跌的有452只，跌幅超10%的有1只。 科创板股换手率区间分布显示，换手率10%~20%的有24只，换手率5%~10%的90只，换手率3%~5%的 130只，换手率1%~3%的295只，换手率不足1%的有50只。 换手率最高的是胜科纳米，该股今日收盘上涨2.30%，全天换手率19.64%，成交额1.81亿元，其次是信 宇人，该股今日收盘下跌7.12%，全天换手率18.89%，成交额3.02亿元，换手率居前的还有南新制药、 益诺思、天承科技等，换手率分别为18.41%、18.08%、18.08%。 市场表现看，换手率超5%的个股中，今日上涨的有53只，涨幅居前的有南新制药、东芯股份、当虹科 技等，分别上涨20.00%、17.33%、15.79%。跌幅居前的有皓元医药、福立旺、仕佳光子等，分别下跌 10.04%、7.72%、7.60%。 分行业 ...

Market Performance - The Sci-Tech Innovation Board (STAR Market) index fell by 0.01%, closing at 984.80 points, with a total trading volume of 2.973 billion shares and a turnover of 102.415 billion yuan, resulting in an average turnover rate of 1.67% [1] - Among the tradable stocks on the STAR Market, 126 stocks closed higher, with 5 stocks rising over 10% and 9 stocks rising between 5% and 10%. Conversely, 456 stocks closed lower, with 2 stocks declining over 10% [1] Stock Turnover Rates - The distribution of turnover rates shows that 2 stocks had turnover rates exceeding 20%, 6 stocks had rates between 10% and 20%, 63 stocks had rates between 5% and 10%, 89 stocks had rates between 3% and 5%, 284 stocks had rates between 1% and 3%, and 144 stocks had rates below 1% [1] - The stock with the highest turnover rate was Xinyuren, which closed down by 12.03% with a turnover rate of 27.05% and a trading volume of 457 million yuan. Jin Chengzi followed with a 5.51% increase and a turnover rate of 26.74% [1] Sector Analysis - In terms of sector performance, the pharmaceutical and biotechnology sector had the most stocks with a turnover rate exceeding 5%, totaling 21 stocks. The electronics and machinery equipment sectors followed with 15 and 9 stocks, respectively [2] Fund Flow - Among the high turnover stocks, 32 stocks experienced net inflows of main funds, with the highest net inflows seen in Huanyu Pharmaceutical (119 million yuan), Rejing Biological (79.625 million yuan), and Daqian Energy (55.749 million yuan). Conversely, the stocks with the highest net outflows included Yuanjie Technology (82.4535 million yuan), Juxin Technology (82.4145 million yuan), and Rongbai Technology (70.9039 million yuan) [2] Leverage Fund Movements - A total of 50 stocks with high turnover recently received net purchases from leveraged funds. Notably, stocks with significant increases in financing balances included Kexing Pharmaceutical (97.5237 million yuan), Weichip Bio (92.6148 million yuan), and Ruikeda (76.3542 million yuan). In contrast, stocks with notable decreases in financing balances included Rongchang Biological (60.2381 million yuan), Haibo Sichuang (56.7112 million yuan), and Guangda Special Materials (37.4973 million yuan) [3]

Market Overview - The Sci-Tech Innovation Board (STAR Market) index fell by 1.22%, closing at 982.64 points, with a total trading volume of 2.847 billion shares and a turnover of 93.68 billion yuan, resulting in a weighted average turnover rate of 1.60% [1] - Among the tradable stocks on the STAR Market, 105 stocks closed higher, with 3 stocks rising over 10% and 5 stocks rising between 5% and 10%. Conversely, 476 stocks closed lower [1] Trading Activity - The turnover rate distribution shows that 2 stocks had a turnover rate exceeding 20%, 7 stocks had a turnover rate between 10% and 20%, 51 stocks had a turnover rate between 5% and 10%, 84 stocks had a turnover rate between 3% and 5%, 305 stocks had a turnover rate between 1% and 3%, and 139 stocks had a turnover rate below 1% [1] - The stock with the highest turnover rate was Shengke Nano, which closed down 7.26% with a turnover rate of 27.87% and a transaction amount of 245 million yuan. The second highest was Kaiweite, which closed down 9.11% with a turnover rate of 23.34% and a transaction amount of 327 million yuan [1] Sector Performance - In terms of industry, the electronics and pharmaceutical sectors had the most stocks with a turnover rate exceeding 5%, each with 13 stocks [2] - Among high turnover stocks, 18 stocks experienced net inflows of main funds, with the highest net inflows seen in Daqian Energy (129 million yuan), Kexing Pharmaceutical (84.31 million yuan), and Rongbai Technology (82.93 million yuan) [2] Leverage Fund Movements - A total of 43 stocks received net purchases from leveraged funds, with notable increases in financing balances for Tailin Micro (200 million yuan), Ruikeda (8.35 million yuan), and Shengnuo Biological (7.50 million yuan). Conversely, significant decreases were observed in Rongchang Biological, Juhua Materials, and Guangda Special Materials [2] Notable Stocks - The following stocks had significant trading activity: - Shengke Nano: Latest closing price 26.56 yuan, daily change -7.26%, turnover rate 27.87%, net outflow -33.20 million yuan [3] - Kaiweite: Latest closing price 36.00 yuan, daily change -9.11%, turnover rate 23.34%, net outflow -19.64 million yuan [3] - Daqian Energy: Latest closing price 23.75 yuan, daily change +15.68%, turnover rate 7.23%, net inflow 129.11 million yuan [4]