报 告 摘 要 一、 市场表现 今日(20250825) 市场全线上涨，规模指数中上证50指数表现较好，板块指数中科创50 指数表现较好，风格指数中沪深300成长指数表现较好。有色金属、通信、房地产、 商贸零售、食品饮料行业表现较好，纺织服装、综合金融、石油石化、轻工制造、银 行行业表现较差。钨矿、光模块(CPO)、稀土、光纤、光通信等概念表现较好，电动 车、中国广电、家纺、快递、长江存储等概念表现较差。 二、市场情绪 今日市场情绪较为高涨，收盘时有91只股票涨停，有8只股票跌停。昨日涨停股票今 日收盘收益为3.51%，昨日跌停股票今日收盘收益为-4.62%。今日封板率68%，较前 日下降16%，连板率23%，较前日下降1%。 三、市场资金流向 截至 20250822 两融余额为21551亿元，其中融资余额21401亿元，融券余额149亿元。 两融余额占流通市值比重为2.3%，两融交易占市场成交额比重为11.5%。 四、折溢价 20250822当日ETF溢价较多的是科创50ETF富国，ETF折价较多的是A500增强ETF。 近半年以来大宗交易日均成交金额达到14亿元，20250822当日大宗交易成交金额为16 ...

证券研究报告 | 2025年08月19日 **Acknowledgments** I would like to thank my supervisor, for his kind of support. I would like to thank my supervisor, for his kind of support. 市场表现：今日(20250819) 规模指数中中证 2000 指数表现较好，板块指数 中北证 50 指数表现较好，风格指数中中证 500 成长指数表现较好。综合、 通信、综合金融、纺织服装、食品饮料行业表现较好，国防军工、非银、石 油石化、医药、煤炭行业表现较差。液态金属、消费电子代工、光模块(CPO)、 家纺、白酒等概念表现较好，PVC 地板、保险精选、毫米波、PEEK 材料、 光刻机等概念表现较差。 市场情绪：今日市场情绪较为高涨，收盘时有 104 只股票涨停，有 10 只股 票跌停。昨日涨停股票今日收盘收益为 3.61%，昨日跌停股票今日收盘收益 为-6.26%。今日封板率 69%，较前日下降 1%，连板率 27%，较前日下降 3%。 市场资金流向：截至 20250818 两融余 ...

- The report does not contain any quantitative models or factors related to construction, evaluation, or testing results[1][2][3]

Market Performance - The market experienced an overall increase on August 18, 2025, with the CSI 2000 index performing well, rising by 2.14%. The CSI 500 Growth Index also showed strong performance, increasing by 1.52% [1][6] - Among industry sectors, telecommunications, computers, national defense, electronics, and media performed well, with returns of 4.11%, 3.21%, 2.52%, 2.47%, and 2.36% respectively. Conversely, real estate, oil and petrochemicals, home appliances, construction, and banking sectors underperformed, with returns of -0.34%, -0.06%, 0.16%, 0.28%, and 0.34% respectively [8][11] Market Sentiment - Market sentiment was high, with 117 stocks hitting the daily limit up and only 2 stocks hitting the limit down. The limit-up stocks from the previous day had an average return of 4.75% today, while limit-down stocks had an average return of 1.97% [2][15][18] - The sealing rate was 70%, a decrease of 3% from the previous day, while the consecutive sealing rate was 30%, down by 5% [20] Market Capital Flow - As of August 15, 2025, the margin trading balance was 20,626 billion yuan, with a financing balance of 20,486 billion yuan and a securities lending balance of 140 billion yuan. The margin trading balance accounted for 2.3% of the circulating market value, and margin trading represented 10.9% of the market turnover [3][23][26] Premium and Discount - On August 15, 2025, the ETF with the highest premium was the Sci-Tech Growth ETF, with a premium of 9.41%, while the ETF with the highest discount was the All Index Cash Flow ETF, with a discount of 1.01% [4][28] - The average discount rate for block trades over the past six months was 5.86%, with a discount rate of 8.44% on August 15, 2025 [31] Institutional Attention and Trading Data - The stocks that received the most institutional attention in the past week included Desay SV Automotive, Anjiesi, Jin Chengzi, Yishitong, and others, with Desay SV Automotive being researched by 181 institutions [5][37] - The top ten stocks with net inflows from institutional special seats included Dazhihui, Tenglong Co., Hengbao Co., and others, while the top ten stocks with net outflows included Quzhou Development, Yingweike, and others [41][42]

Report Title - "Science and Technology Sector Rallies, Fund Segments Rise Steadily - Fund Market Tracking 2025.08.15" [2] Report Industry Investment Rating - Not provided in the report Core Viewpoints - The A-share market strengthened overall, with large, medium, and small-cap representative indices rising over 2%. The growth style was prominent, up 5.0%. Most sectors posted positive returns, with the science and technology sector surging significantly and the banking sector experiencing a notable pullback [6]. - In the fund market, the median return of common stock funds was the highest at 3.6% this week, while international (QDII) alternative investments had the lowest return at -0.5% [6]. - Active equity funds in various sectors rose sharply following the stock market. TMT sector funds led the gains, with a 6.2% increase this week, driving the year-to-date return above 20%. Small and medium-cap and high-valuation stocks showed obvious advantages [6]. - Event-driven private funds had the highest return this year, reaching 27.2% [4]. Summary by Directory 1. This Week's Market Fluctuations 1.1 Performance of Major Asset Classes - The A-share market strengthened, with the CSI 1000 rising 4.1%. The growth style led with a 5.0% increase. Bonds slightly declined, while convertible bonds rose 1.6% driven by the stock market. Hong Kong stocks rose 1.1%, and US stocks rose 0.9%. Gold declined, while other representative commodities rose [9][10]. 1.2 Performance of Industry Themes - Most sectors posted positive returns. The science and technology sector rallied, with sub - industries rising over 5%, and 5G communication and artificial intelligence up over 9%. The pharmaceutical and biological sector also had high gains, with biotech and innovative drugs approaching 4%. The banking sector pulled back 3.2%, and some sub - industries in the cyclical sector declined [13]. 1.3 Performance of Concept Indices - The top five rising concepts were stock trading software, PEEK materials, servers, optical modules (CPO), and liquid - cooled servers, with stock trading software rising 21%. The top five falling concepts were CSSC system, bank selection, central state - owned banks, gold and jewelry, and aircraft carriers, with the CSSC system falling 3.5% [16]. 1.4 Trading Heat Tracking - The top five concepts with the highest trading heat were state - owned enterprise comprehensive, fund heavy - holdings, core assets, specialized and sophisticated small and medium - sized enterprises, and Huijin holdings. The average daily trading volume of state - owned enterprise comprehensive reached 52.49 billion shares. Compared with last week, the top five concepts with rising heat were stock trading software, semiconductor equipment, servers, equal - weighted securities firms, and lithium mines; the top five with falling heat were CSSC system, aircraft carriers, dairy, three - child policy, and SPD [20][21]. 2. Active Equity Fund Tracking 2.1 Classification Returns and Rising Ratios - In the past week, the median return of common stock funds was the highest at 3.6%, and international (QDII) alternative investments had the lowest return at - 0.5%. In the past month, the median return of common stock funds was the highest at 8.3%, and international (QDII) alternative investments had the lowest return at - 0.4%. The highest rising ratio in the past month was for international (QDII) bond funds at 100.0%, and the lowest was for enhanced index bond funds at 0.0%. The lowest maximum drawdown in the past month was for short - term pure bond funds at - 0.1%, and the highest was for international (QDII) alternative investments at - 4.2% [26]. 2.2 Returns of Sub - Labels - From a sector perspective, TMT sector funds rose 6.2% this week, driving the year - to - date return above 20%. Mid - stream manufacturing and pharmaceutical sector funds also rose over 4%. From a style perspective, small - and medium - cap and high - valuation stocks had obvious advantages [28][29]. 2.3 Fund Differentiation within Sectors - In the past week, the Hong Kong stock sector had the lowest differentiation with a return range of 8.9%, and the mid - stream manufacturing sector had the highest with a return range of 21.7%. In the past month, the Hong Kong stock sector had the lowest differentiation with a return range of 18.2%, and the balanced sector had the highest with a return range of 34.9% [31]. 2.4 Fund Differentiation within Styles - In the past week, the low - profitability - quality style had the lowest differentiation with a return range of 17.0%, and the balanced - market - cap and low - growth styles had the highest with a return range of 22.8%. In the past month, the low - profitability - quality style had the lowest differentiation with a return range of 27.8%, and the high - growth and high - quality styles had the highest with a return range of 39.3% [34]. 2.5 Top - Performing Funds in Each Sector - The report lists the top five funds in each sector by return in the past month [38][39]. 2.6 Top - Performing Funds in Each Style - The report lists the top five funds in each style by return in the past month [41]. 3. Private Placement Market Performance 3.1 Overall Performance of the Private Placement Market - Event - driven private funds had the highest return this year, reaching 27.2% [45]. 3.2 Returns of Various Private Placement Types - Stock - strategy private funds: Most high - return products were stock subjective long - only, with year - to - date returns mostly in the 0% - 20% range [48]. - Bond - strategy private funds: Most high - return products were bond composites, with year - to - date returns mostly in the 0% - 5% range [51]. - Portfolio - fund - strategy private funds: All high - return products were FOFs, with year - to - date returns mostly in the 5% - 10% range [55]. - Money - market - strategy private funds: All high - return products were trust products, with year - to - date returns mostly in the 0% - 2% range [58]. - Managed - futures private funds: Most high - return products were based on program trading strategies, with year - to - date returns mostly above 10% [61]. - Relative - value - strategy private funds: Most high - return products were stock - market neutral, with year - to - date returns mostly in the 0% - 10% range [65]. - Macro - strategy private funds: Only three products announced net values this week, and the product of Kua Ke Asset Management had the highest return [69]. - Composite - strategy private funds: Most high - return products were trust products, with year - to - date returns mostly in the 10% - 20% range [72]. - Other - strategy private funds: Most high - return products were under foreign - trade trusts, with year - to - date returns mostly in the 0% - 10% range [75].

There is no relevant quantitative model or factor information in the provided content

The provided content does not include any specific quantitative models or factors, nor does it detail their construction, evaluation, or backtesting results. The documents primarily focus on market performance, sector analysis, investor sentiment, ETF premiums/discounts, block trading, and institutional activity. These are descriptive analyses and do not involve the development or testing of quantitative models or factors.

Market Overview - The A-share market showed a mostly positive trend today, with the Shanghai Composite Index rising by 0.48% to close at 3683.46 points, and the Shenzhen Component Index increasing by 1.76% to 11551.36 points [1] - The total trading volume in the Shanghai and Shenzhen markets reached 21,509 billion, an increase of 2,694.17 million compared to the previous trading day [1] - Among the major indices, the ChiNext Index saw the highest increase, rising by 3.62% to 2496.50 points [1] Industry Performance - The leading sectors today included telecommunications, non-ferrous metals, electronics, pharmaceutical biology, power equipment, and national defense, which all experienced gains [1] - Conversely, sectors such as banking, coal, food and beverage, textiles and apparel, public utilities, and oil and petrochemicals faced declines [1] Sector Highlights - Notable concept sectors with significant gains included optical modules (CPO), optical chips, industrial gases, optical communications, CRO, circuit boards, servers, selected industrial metals, cultivated diamonds, Huakun Zhenyu, innovative drugs, photovoltaic inverters, semiconductor materials, and IDC (computing power leasing) [2]

The provided content does not include any specific quantitative models or factors, nor does it detail their construction, evaluation, or backtesting results. The documents primarily focus on market performance, sector and concept index movements, market sentiment, capital flows, ETF premiums/discounts, block trading, and institutional activity. These are descriptive analyses and do not involve the development or testing of quantitative models or factors.

Market Overview - The A-share market showed a mixed performance today, with major indices mostly closing higher. The Shanghai Composite Index rose by 0.50% to close at 3665.92 points, while the Shenzhen Component increased by 0.53% to 11351.63 points. The Sci-Tech 50 index saw a significant rise of 1.91%, closing at 1069.81 points, and the ChiNext index gained 1.24%, ending at 2409.40 points. Overall, there were 3162 stocks that declined, while 2083 stocks advanced, with 172 stocks remaining flat. The total trading volume in the Shanghai and Shenzhen markets reached 18815 billion yuan, an increase of 545.47 billion yuan compared to the previous trading day [1][2]. Industry Performance - Among the primary industries, telecommunications, electronics, coal, household appliances, real estate, and non-bank financials led the gains, while sectors such as defense, steel, building materials, food and beverage, non-ferrous metals, and social services experienced declines [1][2]. Sector Highlights - The top-performing concept sectors today included optical modules (CPO), GPU, optical chips, servers, photolithography machines, ASIC chips, AI computing power, industrial gases, East Data West Computing, optical communications, semiconductor materials, stock trading software, semiconductor industry, consumer electronics OEM, and the National Big Fund [2].