Market Performance - The oil service engineering sector increased by 1.39% on October 20, with Renji Co., Ltd. leading the gains [1] - The Shanghai Composite Index closed at 3863.89, up 0.63%, while the Shenzhen Component Index closed at 12813.21, up 0.98% [1] Stock Highlights - Renji Co., Ltd. (002629) closed at 8.32, up 4.65% with a trading volume of 281,500 shares and a turnover of 231 million yuan [1] - Huiboyin (002554) closed at 3.20, up 4.58% with a trading volume of 478,000 shares and a turnover of 151 million yuan [1] - Qianeng Hengxin (300191) closed at 20.00, up 3.63% with a trading volume of 49,600 shares and a turnover of approximately 97.55 million yuan [1] Capital Flow - The oil service engineering sector saw a net inflow of 1.76 million yuan from institutional investors, while retail investors experienced a net outflow of 5.76 million yuan [1] - The main capital inflow was observed in Renji Co., Ltd. with a net inflow of 20.60 million yuan, accounting for 8.93% of the total [2] - The sector's overall capital flow indicates a mixed sentiment, with significant retail outflows despite institutional interest [2]

Core Insights - The oil service engineering sector experienced a decline of 0.96% on October 17, with RenZhi Co. leading the drop [1] - The Shanghai Composite Index closed at 3839.76, down 1.95%, while the Shenzhen Component Index closed at 12688.94, down 3.04% [1] Stock Performance - Top gainers in the oil service engineering sector included: - Tongyuan Petroleum (300164) with a closing price of 5.99, up 5.46% [1] - Zhunyou Co. (002207) at 8.42, up 4.34% [1] - Beiken Energy (002828) at 10.75, up 3.46% [1] - Notable decliners included: - RenZhi Co. (002629) at 7.95, down 1.85% [2] - Haijun Engineering (600583) at 5.39, down 1.46% [2] - Shipgen Aori (601808) at 13.63, down 1.45% [2] Capital Flow - The oil service engineering sector saw a net inflow of 123 million yuan from institutional investors, while retail investors experienced a net outflow of 182 million yuan [2][3] - Key stocks with significant capital flow included: - Tongyuan Petroleum with a net inflow of 1.16 billion yuan from institutional investors [3] - Zhunyou Co. with a net inflow of 37.83 million yuan [3] - Beiken Energy with a net inflow of 19.94 million yuan [3]

Group 1 - Dingjide's subsidiary has successfully launched the industrial production of POE materials, achieving stable production of qualified products [1] - Xinhua Insurance reported a 19% year-on-year increase in original insurance premium income for the first three quarters, totaling 172.705 billion yuan [1] - Chunfeng Power achieved a 30.89% year-on-year increase in net profit for the first three quarters, with total revenue reaching 14.15 billion yuan [1][2] Group 2 - Guangsheng Nonferrous expects a net profit of 100 million to 130 million yuan for the first three quarters, marking a turnaround from losses [1] - Aobi Zhongguang anticipates a net profit of approximately 108 million yuan for the first three quarters, with revenue growth of 103.5% [1] - Guobang Pharmaceutical reported a 15.78% year-on-year increase in net profit for the first three quarters, totaling 6.7 billion yuan [1] Group 3 - Zhujiang Co. manages 428 projects with a signed construction area of approximately 50.9853 million square meters as of September 2025 [1] - Kecuan Technology has terminated its application for issuing convertible bonds, considering its development plan and actual situation [1] - Guoxin Securities has received approval to register 15 billion yuan in short-term corporate bonds [1] Group 4 - Aihua Pharmaceutical's clinical trial for a pediatric cough syrup has been approved by the National Medical Products Administration [1] - Xinjiang Jiaojian signed new construction contracts worth 1.413 billion yuan in the third quarter [1] - Sichuan Shuangma's subsidiary has received approval for the listing of a raw material drug used in treating various diseases [1] Group 5 - Gansu Energy's 1,000 MW coal-fired unit has officially commenced commercial operation [1] - Zhejiang Energy reported a 4.68% year-on-year increase in power generation for the first three quarters, totaling 135.234 billion kWh [1] - Tiandi Source's contract sales amount for the first nine months decreased by 16.18% to 3.085 billion yuan [1] Group 6 - Biological Shares' subsidiary has obtained a new veterinary drug registration certificate for a vaccine [1] - Jintong Co. reported a 4.03% year-on-year increase in net profit for the first three quarters, totaling 2.283 billion yuan [1] - Rihua Technology plans to invest 800 million yuan in a new project for industrial ray detection equipment [1] Group 7 - Zhongtian Technology has won multiple marine project bids totaling approximately 1.788 billion yuan [1] - Qingsong Co. has completed the disposal of a 148-acre industrial park project, transferring it for 163 million yuan [1] - Tongyuan Petroleum has successfully bid for a $126 million oil and gas service project in Algeria [1] Group 8 - Hengmingda's chairman proposed a share buyback plan of 200 million to 400 million yuan [1] - Deyi Cultural plans to reduce its holdings by up to 1% of the company's shares [1] - Feirongda's major shareholder plans to reduce its holdings by up to 2.36% of the company's shares [1] Group 9 - Mankun Technology plans to issue convertible bonds to raise no more than 760 million yuan for high-end PCB production and digital upgrades [1] - Sanlian Forging's shareholder plans to reduce its holdings by up to 3% of the company's shares [1] - Huagong Technology intends to jointly establish a venture capital fund with a target size of 500 million yuan [1] Group 10 - Shida Shenghua expects a net loss of 49 million to 75 million yuan for the first three quarters [1] - Huichuangda's major shareholder plans to reduce its holdings by up to 0.65% of the company's shares [1] - Yuxin Electronics reported a 60.21% year-on-year increase in net profit for the first three quarters, totaling 73.3941 million yuan [1] Group 11 - Yiwei Communication expects a 50% to 55% decline in net profit for the first three quarters [1] - Lio Co. plans to reduce its repurchased shares by up to 135 million shares [1] - Sichuan Shuangma's subsidiary has received approval for a new drug registration [1]

Core Viewpoint - The oil service engineering sector experienced a decline of 0.45% on October 16, with Renji Co. leading the drop. The Shanghai Composite Index rose by 0.1% to close at 3916.23, while the Shenzhen Component Index fell by 0.25% to 13086.41 [1]. Group 1: Market Performance - The oil service engineering sector's individual stock performance showed mixed results, with notable declines in several companies, including Renji Co. which fell by 4.71% to a closing price of 8.10 [2]. - The trading volume for Renji Co. was 355,300 shares, with a transaction value of 292 million yuan [2]. - Other companies in the sector, such as Beiken Energy and Zhun Oil Co., also saw declines of 2.17% and 2.06%, respectively [2]. Group 2: Capital Flow - The oil service engineering sector experienced a net outflow of 217 million yuan from major funds, while retail investors contributed a net inflow of 190 million yuan [2]. - The table of capital flow indicates that major funds withdrew from several companies, including Zhun Oil Co. and Beiken Energy, with net outflows of 15.6 million yuan and 19.9 million yuan, respectively [3]. - Conversely, retail investors showed a positive net inflow for Zhun Oil Co. and Beiken Energy, with inflows of 25.9 million yuan and 17.3 million yuan, respectively [3].

Core Insights - The oil service engineering sector experienced a slight increase of 0.16% on October 15, with Huibo Po leading the gains [1] - The Shanghai Composite Index closed at 3912.21, up 1.22%, while the Shenzhen Component Index closed at 13118.75, up 1.73% [1] Stock Performance - Huibo Po (002554) closed at 3.15, up 2.27% with a trading volume of 422,500 shares and a transaction value of 132 million yuan [1] - Qianeng Hengxin (300191) closed at 20.06, up 1.42% with a trading volume of 70,300 shares and a transaction value of 141 million yuan [1] - Other notable stocks include: - Zhimusi (600583) at 5.46, up 0.92% [1] - PetroChina Engineering (600339) at 3.62, unchanged [1] - Beiken Energy (002828) at 10.62, down 0.38% [2] Capital Flow - The oil service engineering sector saw a net outflow of 89.86 million yuan from institutional investors, while retail investors contributed a net inflow of 59.03 million yuan [2] - Notable capital flows include: - Haiyou Development (600968) with a net inflow of 7.68 million yuan from institutional investors [3] - Huibo Po (002554) with a net outflow of 2.64 million yuan from institutional investors [3] - Beiken Energy (002828) with a net outflow of 4.42 million yuan from institutional investors [3]

Core Viewpoint - The oil service engineering sector experienced a slight increase of 0.67% on October 14, with Renji Co., Ltd. leading the gains, while the overall market indices saw declines [1]. Market Performance - The Shanghai Composite Index closed at 3865.23, down 0.62% - The Shenzhen Component Index closed at 12895.11, down 2.54% [1]. Individual Stock Performance - Renji Co., Ltd. (002629) closed at 8.48, up 9.99% with a trading volume of 249,700 shares and a turnover of 201 million yuan - Zhongman Petroleum (603619) closed at 20.19, up 4.77% with a trading volume of 267,000 shares and a turnover of 536 million yuan - Other notable performers include Tongyuan Petroleum (300164) up 2.81%, Beiken Energy (002828) up 2.21%, and Zhun Oil Co. (002207) up 2.20% [1]. Capital Flow Analysis - The oil service engineering sector saw a net inflow of 80.77 million yuan from institutional investors, while retail investors contributed a net inflow of 48.83 million yuan - However, there was a net outflow of 130 million yuan from speculative funds [2]. Detailed Capital Flow for Key Stocks - Renji Co., Ltd. had a net inflow of 57.91 million yuan from institutional investors, but a net outflow of 21.63 million yuan from speculative funds - Tongyuan Petroleum saw a net inflow of 33.00 million yuan from institutional investors, while Zhun Oil Co. had a net inflow of 14.04 million yuan [3].

Market Overview - The oil service engineering sector experienced a decline of 1.54% on October 13, with Renji Co. leading the drop [1] - The Shanghai Composite Index closed at 3889.5, down 0.19%, while the Shenzhen Component Index closed at 13231.47, down 0.93% [1] Individual Stock Performance - Renji Co. (002629) closed at 7.71, down 4.22% with a trading volume of 268,700 shares and a transaction value of 206 million yuan [1] - Qianeng Hengxin (300191) closed at 19.85, down 3.69% with a trading volume of 68,100 shares and a transaction value of 134 million yuan [1] - Keli Co. (920088) closed at 34.27, down 2.97% with a trading volume of 20,700 shares [1] - Zhongman Petroleum (603619) closed at 19.27, down 2.87% with a trading volume of 148,600 shares and a transaction value of 285 million yuan [1] - Tongyuan Petroleum (300164) closed at 5.69, down 2.23% with a trading volume of 802,800 shares [1] - Other notable declines include Shihua Oil Service (600871) down 1.86% and Beiken Energy (002828) down 1.60% [1] Capital Flow Analysis - The oil service engineering sector saw a net outflow of 175 million yuan from institutional investors, while retail investors contributed a net inflow of 131 million yuan [1] - The table indicates that Zhongman Petroleum had a net outflow of 35.5 million yuan from institutional investors, while retail investors had a net inflow of 8.36 million yuan [2] - Tongyuan Petroleum experienced a net outflow of 32.3 million yuan from institutional investors, with retail investors contributing a net inflow of 36.2 million yuan [2]

- The report utilizes a methodology from the industry rotation series to track the configuration signals and business indicators of various industries, including coal, livestock farming, steel, structural materials, and fuel refining industries [9] Quantitative Models and Construction Methods Coal Industry Model - **Model Name**: Coal Industry Profit and Revenue Growth Estimation Model - **Model Construction Idea**: The model estimates monthly revenue and profit growth of the coal industry based on the changes in price and production capacity factors [10] - **Model Construction Process**: - The long-term contract mechanism for thermal coal determines the sales price for the next month based on the price index of the last month - Monthly revenue and profit growth are estimated using the year-on-year changes in price factors and production capacity factors [10] - **Model Evaluation**: The model predicts that the coal industry profit for October 2025 will continue to decline year-on-year due to coal prices being lower than the same period last year [14] Livestock Farming Model - **Model Name**: Livestock Supply and Demand Gap Estimation Model - **Model Construction Idea**: The model uses the relationship between the number of breeding sows and the quarterly pig slaughter rate to estimate the supply-demand gap for pigs six months later [15] - **Model Construction Process**: - The model assumes a stable proportional relationship between quarterly pig slaughter and the number of breeding sows six months prior - Formula: $ \text{Slaughter Coefficient} = \frac{\text{Quarterly Pig Slaughter}}{\text{Breeding Sow Inventory (lagged 6 months)}} $ [15] - Potential production capacity after 6 months is calculated as: $ \text{Potential Production Capacity (6 months later)} = \text{Breeding Sow Inventory (current month)} \times \text{Slaughter Coefficient (6 months prior)} $ [16] - Potential demand after 6 months is calculated as: $ \text{Potential Demand (6 months later)} = \text{Quarterly Pig Slaughter (6 months prior)} $ [16] - **Model Evaluation**: Historical experience shows that the slaughter coefficient method effectively identifies pig price upward cycles [16] Steel Industry Model - **Model Name**: Steel Industry Profit and Unit Profit Estimation Model - **Model Construction Idea**: The model predicts monthly profit growth and calculates unit profit for the steel industry by considering comprehensive steel prices and cost indicators such as iron ore, coke, pulverized coal, and scrap steel [18] - **Model Construction Process**: - Comprehensive steel prices and cost indicators are used to predict monthly profit growth - Unit profit is calculated based on the difference between steel prices and costs [18] - **Model Evaluation**: The model predicts that the steel industry profit for September 2025 will grow year-on-year, but the PMI rolling 12-month average remains flat, maintaining a neutral configuration viewpoint [23] Structural Materials and Building Engineering Model - **Model Name**: Glass and Cement Industry Profit Tracking Model - **Model Construction Idea**: The model tracks profitability changes in the glass and cement manufacturing industries using price and cost indicators, and designs configuration signals based on profitability changes [25] - **Model Construction Process**: - Price and cost indicators are used to track profitability changes - Configuration signals are designed based on profitability changes [25] - **Model Evaluation**: - Glass industry profit turned positive year-on-year in September 2025, leading to an upgrade to a positive configuration signal [30] - Cement industry profit remained flat year-on-year, and no positive signals were observed in new housing starts, maintaining a neutral configuration viewpoint [30] Fuel Refining and Oil Services Model - **Model Name**: Fuel Refining and Oil Services Profit and Configuration Signal Model - **Model Construction Idea**: The model estimates industry profit growth and cracking spreads based on changes in refined fuel prices and crude oil prices, and designs configuration signals based on oil prices, cracking spreads, and new drilling changes [31] - **Model Construction Process**: - Refined fuel price changes and crude oil price changes are used to estimate industry profit growth and cracking spreads - Configuration signals are designed based on oil prices, cracking spreads, and new drilling changes [31] - **Model Evaluation**: - The model predicts that the fuel refining industry profit for September 2025 will grow year-on-year due to lower inventory costs from recent low oil prices [31] - Observations show that oil prices in September 2025 were lower than the same period last year, maintaining a neutral configuration viewpoint for the fuel refining and oil services industries [37][38] Model Backtesting Results Coal Industry Model - **Profit Growth**: Predicted to continue declining year-on-year in October 2025 due to lower coal prices compared to the same period last year [14] Livestock Farming Model - **Breeding Sow Inventory**: 4,038 million heads as of August 2025, slightly decreased month-on-month [17] - **Potential Production Capacity (26Q1)**: 19,361 million heads [17] - **Potential Demand (26Q1)**: 19,476 million heads [17] - **Supply-Demand Balance**: Slightly tight [17] Steel Industry Model - **Profit Growth**: Predicted to grow year-on-year in September 2025 [23] - **PMI Rolling Average**: Remained flat for 12 months, not exceeding the threshold [23] Structural Materials and Building Engineering Model - **Glass Industry Profitability**: Turned positive year-on-year in September 2025 [30] - **Cement Industry Profitability**: Remained flat year-on-year in September 2025 [30] - **Manufacturing PMI Rolling Average**: Remained flat for 12 months [30] - **Housing Sales Area**: Observed a year-on-year decline in August 2025 [30] Fuel Refining and Oil Services Model - **Fuel Refining Industry Profitability**: Predicted to grow year-on-year in September 2025 due to lower inventory costs [31] - **Oil Price**: Observed to be lower than the same period last year in September 2025 [37] - **New Drilling Activity**: No significant year-on-year changes observed in the US [38]

Core Insights - The oil service engineering sector experienced a rise of 1.36% on October 10, with China National Petroleum Engineering leading the gains [1] - The Shanghai Composite Index closed at 3897.03, down 0.94%, while the Shenzhen Component Index closed at 13355.42, down 2.7% [1] Stock Performance - China National Petroleum Engineering (600339) closed at 3.68, up 3.37% with a trading volume of 1.0453 million shares and a transaction value of 381 million yuan [1] - Other notable performers included Huibo Yin (002554) at 3.09, up 2.66%, and Zhongman Petroleum (619609) at 19.84, up 1.64% [1] - The overall trading volume and transaction values for various stocks in the oil service engineering sector were significant, indicating active market participation [1] Capital Flow - The oil service engineering sector saw a net outflow of 148 million yuan from institutional investors, while retail investors contributed a net inflow of 200 million yuan [2][3] - The detailed capital flow indicated that while institutional and speculative funds were withdrawing, retail investors were actively buying into the sector [2][3] Individual Stock Capital Flow - Zhongman Petroleum (300191) had a net inflow of 772.26 thousand yuan from institutional investors, while it faced a net outflow of 1204.39 thousand yuan from speculative funds [3] - Other stocks like PetroChina (600871) and Huibo Yin (002554) also showed mixed capital flows, with retail investors showing a preference for certain stocks despite overall net outflows from larger funds [3]

Core Insights - The oil service engineering sector experienced a 2.24% increase on October 9, with China National Petroleum Engineering leading the gains [1] - The Shanghai Composite Index closed at 3933.97, up 1.32%, while the Shenzhen Component Index closed at 13725.56, up 1.47% [1] Stock Performance - China National Offshore Oil Engineering (600339) closed at 3.56, up 5.01% with a trading volume of 977,100 shares and a turnover of 344 million yuan [1] - Renji Co., Ltd. (002629) closed at 8.30, up 4.27% with a trading volume of 790,000 shares and a turnover of 667 million yuan [1] - Other notable performers include: - Bomei Co. (603727) at 13.84, up 3.52% [1] - CNOOC Development (600968) at 3.94, up 2.60% [1] - Sinopec Oilfield Service (600871) at 2.12, up 2.42% [1] Capital Flow - The oil service engineering sector saw a net outflow of 85.96 million yuan from institutional investors, while retail investors contributed a net inflow of 136 million yuan [2] - The capital flow for specific stocks includes: - CNOOC Engineering (600583) with a net inflow of 30.56 million yuan from institutional investors [3] - CNOOC Development (600968) with a net inflow of 13.46 million yuan [3] - Renji Co., Ltd. (002207) with a net inflow of 12.38 million yuan [3]