Quantitative Models and Construction Methods 1. Model Name: A-Share Industry Rotation Model - **Model Construction Idea**: The model uses six factors—funds, valuation, sentiment, momentum, overbought/oversold, and profitability—to build a scoring system for evaluating industry performance[16] - **Model Construction Process**: - **Funds**: Uses the net inflow rate of main funds in the industry as the primary data - **Valuation**: Based on the valuation percentile of the industry over the past year - **Sentiment**: Proportion of rising constituent stocks as the main data source - **Momentum**: Uses the MACD indicator as the primary data source - **Overbought/Oversold**: Relies on the RSI indicator - **Profitability**: Based on the consensus forecast EPS percentile of the industry over the past year[16] - **Model Evaluation**: The model provides a comprehensive scoring mechanism to identify high-performing and low-performing industries, aiding in sector rotation decisions[16] 2. Model Name: Consensus Stock Selection Model - **Model Construction Idea**: Combines momentum, valuation, and price factors with high-frequency fund flow data to identify stocks with high similarity between fund flow trends and price trends[21] - **Model Construction Process**: - Selects high-performing secondary industries over the past 30 days - Calculates momentum, valuation, and frequency of price increases for stocks within these industries - Uses high-frequency minute-level fund flow data to compute fund inflow/outflow changes for each stock - Selects stocks with the highest similarity between fund flow trends and price trends within the top three secondary industries[21] --- Model Backtesting Results 1. A-Share Industry Rotation Model - **Top-Scoring Industries**: - Agriculture, Forestry, Animal Husbandry, and Fishery: Score 10 - Non-Ferrous Metals: Score 9 - Home Appliances: Score 6 - **Low-Scoring Industries**: - Media: Score -9 - Social Services: Score -8 - Computers: Score -8[18][19] 2. Consensus Stock Selection Model - **Selected Industries**: - Steel (e.g., Baosteel, Bengang Steel Plates) - Components (e.g., Huilun Crystal, GaoHua Technology) - Minor Metals (e.g., Jinduicheng Molybdenum, Xiyang Shares)[22] --- Quantitative Factors and Construction Methods 1. Factor Name: Funds - **Construction Idea**: Measures the net inflow of main funds in the industry - **Construction Process**: Aggregates daily transactions of ≥10,000 shares or ≥200,000 RMB to calculate net fund inflow for each industry[11] 2. Factor Name: Valuation - **Construction Idea**: Evaluates the relative valuation percentile of the industry over the past year - **Construction Process**: Uses historical valuation data to determine the percentile ranking of the current valuation[16] 3. Factor Name: Sentiment - **Construction Idea**: Reflects market sentiment through the proportion of rising stocks in the industry - **Construction Process**: Calculates the percentage of stocks with positive price changes within the industry[16] 4. Factor Name: Momentum - **Construction Idea**: Captures the trend strength of the industry - **Construction Process**: Utilizes the MACD indicator to measure momentum[16] 5. Factor Name: Overbought/Oversold - **Construction Idea**: Identifies overbought or oversold conditions in the industry - **Construction Process**: Applies the RSI indicator to assess these conditions[16] 6. Factor Name: Profitability - **Construction Idea**: Measures the earnings potential of the industry - **Construction Process**: Uses the consensus forecast EPS percentile over the past year as the primary metric[16] --- Factor Backtesting Results 1. Funds Factor - **Top Industries (5-day net inflow)**: - Banking: 39.08 billion RMB - Textiles and Apparel: 0.61 billion RMB - Non-Ferrous Metals: -0.97 billion RMB[12] - **Top Industries (30-day net inflow)**: - Comprehensive: -9.49 billion RMB - Banking: -13.75 billion RMB - Beauty and Personal Care: -26.15 billion RMB[13][14] 2. Valuation Factor - **Top-Scoring Industries**: - Non-Ferrous Metals: +++ - Comprehensive: +++ - Beauty and Personal Care: +++[18][19] 3. Sentiment Factor - **Top-Scoring Industries**: - Non-Ferrous Metals: +++ - Agriculture, Forestry, Animal Husbandry, and Fishery: ++ - Textiles and Apparel: ++[18][19] 4. Momentum Factor - **Top-Scoring Industries**: - Non-Ferrous Metals: +++ - Transportation: +++ - Comprehensive: +++[18][19] 5. Overbought/Oversold Factor - **Top-Scoring Industries**: - Agriculture, Forestry, Animal Husbandry, and Fishery: Neutral - Non-Ferrous Metals: Neutral - Home Appliances: Neutral[18][19] 6. Profitability Factor - **Top-Scoring Industries**: - Non-Ferrous Metals: +++ - Comprehensive: +++ - Home Appliances: +[18][19]

Core Viewpoint - Sanbo Brain Science's stock price increased by 4.82% on August 12, 2025, indicating strong market interest and activity in the neuro-surgery sector [1] Company Summary - Sanbo Brain Science's stock closed at 60.18 yuan, with a daily high of 62.57 yuan and a low of 56.71 yuan, resulting in a trading range of 10.21% [1] - The company specializes in neuro-surgery medical services, including diagnosis, surgery, and rehabilitation for brain diseases [1] - The stock is part of sectors such as medical services and precision medicine [1] Market Activity - The stock experienced a rapid rebound in the morning session, with a gain of over 2% within the first five minutes of trading [1] - The overall performance of brain-computer interface concept stocks was active, contributing to the rise of related stocks [1] - On August 12, the net outflow of main funds was 394.94 thousand yuan, accounting for 0.04% of the circulating market value [1] - Over the past five trading days, the cumulative net outflow of main funds reached 31.2 million yuan, representing 3.22% of the circulating market value [1]

Core Viewpoint - The medical device sector is experiencing a significant upward trend, driven by favorable policies and increasing investment interest, marking a potential turning point for the industry [3][9][16]. Market Performance - The medical device index ETF (159898.SZ) rose by 1.02% today, with a one-year increase of 22.18%, leading among similar indices [1][18]. - Over the past 20 trading days, the medical device index ETF has increased by 12.31%, indicating strong market interest [9]. Policy Environment - Recent policy changes have shifted from restrictive measures to supportive frameworks for innovation and market entry in the medical device sector [14][16]. - The introduction of new pricing projects for brain-computer interface services by various provinces supports clinical application and market growth [4][14]. Investment Trends - There is a notable shift in investment focus from innovative drugs to medical devices, with brain-computer interfaces emerging as a key area of interest [4][10]. - The medical device industry is expected to benefit from a combination of aging populations, increased health awareness, and the integration of AI technologies [17][22]. Future Outlook - The medical device sector is anticipated to transition from low-end to high-end products, moving towards original innovations and comprehensive solutions [22]. - The integration of AI in medical devices is expected to create new growth opportunities and enhance product value [17][22].

Core Viewpoint - Zhejiang Dongri (600113.SH) clarifies that its main business operations do not involve "brain-computer interface" technology, focusing instead on agricultural product wholesale market management, fresh food distribution, and soybean product processing [1] Group 1 - The company operates in the agricultural product wholesale market management sector, which includes market transaction management and leasing services [1] - The company is also engaged in fresh food distribution services [1] - Additionally, the company is involved in the production and processing of soybean products [1]

Group 1 - The company Zhejiang Dongri (600113.SH) primarily engages in the wholesale trading market operation and management of agricultural and sideline products, including market trading management and leasing business [1] - The company also operates in the fresh food delivery business and the production and processing of soybean products [1] - The company does not involve in the "brain-computer interface" business [1]

Group 1 - The photoresist concept sector increased by 1.68%, ranking fifth among concept sectors, with 47 stocks rising, including KaiMet Gas which hit the daily limit, and Feikai Materials, Stik, and Huamao Technology showing significant gains of 11.81%, 11.46%, and 8.39% respectively [1] - The photoresist sector saw a net inflow of 935 million yuan from main funds, with 39 stocks receiving net inflows, and 7 stocks exceeding 50 million yuan in net inflow, led by KaiMet Gas with a net inflow of 356 million yuan [2] - The top stocks by net inflow ratio in the photoresist sector included KaiMet Gas, Hanghua Co., and Shanghai Xinyang, with net inflow ratios of 32.90%, 14.19%, and 10.93% respectively [3] Group 2 - The photoresist sector's performance was highlighted by the significant daily gains of stocks such as Feikai Materials and Stik, which rose by 11.81% and 11.46% respectively, indicating strong investor interest [1][2] - The overall market sentiment for the photoresist sector appears positive, as evidenced by the substantial net inflow of funds and the number of stocks experiencing gains [2][3] - The data indicates a robust trading activity within the photoresist sector, with notable turnover rates and net inflow ratios for leading stocks, suggesting a favorable investment environment [3]

Core Insights - The National Big Fund holding concept rose by 1.83%, ranking fourth among concept sectors, with 34 stocks increasing in value, led by Shengke Communication, Chip Origin, and Tailin Micro, which rose by 19.27%, 9.24%, and 7.34% respectively [1][2] - The concept sector saw a net inflow of 2.169 billion yuan, with 34 stocks receiving net inflows, and 7 stocks exceeding 100 million yuan in net inflows, with Tongfu Microelectronics leading at 522 million yuan [2][3] Market Performance - The top-performing concept sectors included Brain-Computer Interface (+2.37%), Lithography Machine (+2.26%), and China AI 50 (+2.01%), while sectors like PEEK Materials (-1.58%) and Rare Earth Permanent Magnet (-1.53%) faced declines [2] - The National Big Fund holding concept was among the top gainers, with a notable increase in stock prices and significant net inflows [2] Stock Specifics - Tongfu Microelectronics had a daily increase of 4.55% with a net inflow rate of 17.13%, followed by Guoli Microelectronics and Huizhi Microelectronics with rates of 16.88% and 15.67% respectively [3][4] - Stocks such as Shengke Communication and Chip Origin saw significant price increases of 19.27% and 9.24%, indicating strong market interest [4][5]

Group 1 - As of August 12, the China AI 50 concept index rose by 2.01%, ranking third among concept sectors, with 35 stocks increasing in value [1] - Notable gainers included Cambrian Technology, which hit the daily limit with a 20% increase, and other significant performers such as Shengke Communication, Invech, and Desay SV, which rose by 19.27%, 9.39%, and 7.44% respectively [1] - The largest declines were seen in Fanwei Network, Weining Health, and Magmi Tech, which fell by 2.41%, 1.89%, and 1.26% respectively [1] Group 2 - The China AI 50 concept attracted a net inflow of 6.502 billion yuan, with 27 stocks receiving net inflows and 13 stocks exceeding 100 million yuan in net inflows [2] - Cambrian Technology led the net inflow with 1.977 billion yuan, followed by China Great Wall, New Yisheng, and Inspur Information with net inflows of 999.1 million yuan, 811.9 million yuan, and 692.0 million yuan respectively [2] - The net inflow ratios for leading stocks were 15.48% for China Great Wall, 13.15% for Inspur Information, and 13.07% for Cambrian Technology [3] Group 3 - The top performers in the China AI 50 concept included Cambrian Technology with a 20% increase and a turnover rate of 4.58%, and China Great Wall with a 5.93% increase and a turnover rate of 12.43% [3] - Other notable stocks included New Yisheng with a 6.23% increase and a turnover rate of 5.85%, and Inspur Information with a 3.61% increase and a turnover rate of 6.44% [3] - The stocks with the highest net outflows included Fanwei Network, Weining Health, and Magmi Tech, with outflows of 961.2 thousand yuan, 9907.6 thousand yuan, and 18801.7 thousand yuan respectively [5]

8月12日，市场全天震荡走高，沪指录得7连阳，三大指数均再创年内新高。A股全天成交额1.91万亿元，较上个交易日放量554.26亿元。盘面上，市场热 点较为杂乱，个股跌多涨少，全市场超3100只个股下跌。截至收盘，沪指涨0.5%，深成指涨0.53%，创业板指涨1.24%。 从板块来看，芯片股午后爆发，寒武纪涨停创历史新高。AI硬件股震荡走强，胜宏科技等多股再创历史新高。新疆本地股维持强势，新疆交建等多股3连 板。下跌方面，军工股展开调整，捷强装备等跌超5%。板块方面，半导体、港口、CPO、新疆等板块涨幅居前，PEEK材料、稀土永磁、军工、锂矿等板 块跌幅居前。 | | | | Wind热门概念指数 | | | | | --- | --- | --- | --- | --- | --- | --- | | 万得光模块( | GPU | 光芯片 | 服务器 | 光刻机 | 稳定币 | ASIC TH | | 4.59% | 4.45% | 4.28% | 4.07% | 3.34% | 2.99% | 2.79% | | AI自力 | 工业气体 | 东数回目 | 光通信 | 在居体材料 | 炒股软件 | 三十四体 ...

每经AI快讯，有投资者在投资者互动平台提问：请问公司有无脑际接口相关技术储备？ 润达医疗（603108.SH）8月12日在投资者互动平台表示，公司暂不涉及脑机接口相关技术。 （文章来源：每日经济新闻） ...