Core Viewpoint - PIANO's stock has shown significant growth this year, with a 36.74% increase, and recent trading activity indicates positive momentum in the market [1][2]. Group 1: Stock Performance - On December 2, PIANO's stock rose by 2.04%, reaching 15.00 CNY per share, with a trading volume of 25.15 million CNY and a turnover rate of 1.33%, resulting in a total market capitalization of 2.744 billion CNY [1]. - Year-to-date, PIANO's stock price has increased by 36.74%, with a 5-day increase of 8.30%, a 20-day increase of 12.53%, and a 60-day increase of 24.69% [1]. - The net inflow of main funds was 2.40 million CNY, with large orders accounting for 16.82% of total purchases and 7.28% of total sales [1]. Group 2: Company Overview - PIANO, established on June 14, 2005, and listed on March 10, 2017, is located in Zhongshan, Guangdong Province, specializing in high-end customized cabinets, wardrobes, wooden doors, and related home products [1]. - The revenue composition of PIANO includes customized cabinets and related products at 54.78%, customized wardrobes and related products at 39.55%, doors and walls at 3.86%, and other supplementary products at 1.82% [1]. Group 3: Financial Performance - For the period from January to September 2025, PIANO reported a revenue of 420 million CNY, a year-on-year decrease of 37.27%, and a net profit attributable to shareholders of -7.53 million CNY, a year-on-year decrease of 191.47% [2]. - Since its A-share listing, PIANO has distributed a total of 198 million CNY in dividends, with 36.58 million CNY distributed over the past three years [3]. Group 4: Shareholder Information - As of October 31, the number of PIANO shareholders increased by 5.35% to 11,500, with an average of 11,163 shares per shareholder, a decrease of 5.07% [2]. - As of September 30, 2025, the ninth largest circulating shareholder is the Nuoan Multi-Strategy Mixed A fund, holding 1.2967 million shares as a new shareholder [3].

米奥会展所属申万行业为：社会服务-专业服务-会展服务。所属概念板块包括：微盘股、小盘、送转填 权、首发经济、跨境电商等。 12月2日，米奥会展盘中上涨2.06%，截至10:14，报15.88元/股，成交7006.32万元，换手率2.59%，总市 值47.46亿元。 资金流向方面，主力资金净流入654.77万元，特大单买入120.10万元，占比1.71%，卖出0.00元，占比 0.00%；大单买入1300.90万元，占比18.57%，卖出766.23万元，占比10.94%。 米奥会展今年以来股价涨5.07%，近5个交易日涨7.88%，近20日涨11.60%，近60日跌0.59%。 资料显示，浙江米奥兰特商务会展股份有限公司位于上海市恒丰路218号现代交通商务大厦21楼2104 室，成立日期2010年6月30日，上市日期2019年10月22日，公司主营业务涉及会展项目的策划发起、组 织承办、推广及运营服务。主营业务收入构成为：自办展100.00%。 截至9月30日，米奥会展股东户数1.20万，较上期减少6.98%；人均流通股14435股，较上期增加7.36%。 2025年1月-9月，米奥会展实现营业收入4.01亿 ...

Group 1 - The core viewpoint of the news is that Langjin Technology's stock has experienced fluctuations, with a recent decline of 2.11% and a total market value of 1.665 billion yuan [1] - As of December 2, Langjin Technology's stock price is 18.12 yuan per share, with a trading volume of 3.9487 million yuan and a turnover rate of 0.24% [1] - The company has seen a year-to-date stock price increase of 5.72%, but a decline of 0.55% over the last five trading days and 2.37% over the last twenty days [1] Group 2 - Langjin Technology's main business includes air conditioning for rail transit vehicles, new energy vehicle air conditioning, intelligent thermal management products, and digital energy intelligent environmental control products [1] - The revenue composition of Langjin Technology is as follows: 69.87% from rail transit vehicle air conditioning and services, 23.83% from new energy and intelligent thermal management products, and 3.53% from digital energy intelligent environmental control products [1] - As of November 20, the number of shareholders of Langjin Technology has increased by 1.06% to 10,500, with an average of 8,695 circulating shares per person, a decrease of 1.05% [2] Group 3 - For the period from January to September 2025, Langjin Technology achieved an operating income of 536 million yuan, a year-on-year decrease of 8.12%, while the net profit attributable to the parent company was -13.502 million yuan, an increase of 68.81% year-on-year [2] - Since its A-share listing, Langjin Technology has distributed a total of 40.5201 million yuan in dividends, with 9.1877 million yuan distributed over the past three years [2] - As of September 30, 2025, the top ten circulating shareholders of Langjin Technology saw the exit of the Noan Multi-Strategy Mixed A fund from the list [2]

Core Viewpoint - Sanwang Communication's stock price has experienced fluctuations, with a recent decline of 2.11% despite a year-to-date increase of 29.21% [1][2]. Company Overview - Sanwang Communication, established on September 6, 2001, and listed on December 30, 2020, is located in the Baowangxin High-tech Industrial Park, Nanshan District, Shenzhen, Guangdong Province [2]. - The company specializes in the research, development, production, and sales of industrial internet communication products [2]. Financial Performance - For the period from January to September 2025, Sanwang Communication achieved operating revenue of 262 million yuan, representing a year-on-year growth of 7.20% [2]. - The net profit attributable to the parent company was 34.87 million yuan, reflecting a year-on-year increase of 4.78% [2]. - The company has distributed a total of 115 million yuan in dividends since its A-share listing, with cumulative distributions of 76.72 million yuan over the past three years [2]. Stock Performance - As of December 2, the stock price was 26.94 yuan per share, with a market capitalization of 2.968 billion yuan [1]. - The stock has seen a trading volume of 5.3789 million yuan and a turnover rate of 0.18% [1]. - The number of shareholders as of September 30 was 4,699, a decrease of 0.25% from the previous period, while the average circulating shares per person increased by 0.26% to 23,419 shares [2]. Business Segmentation - The main revenue composition includes industrial switching products (76.60%), industrial gateways and wireless products (18.07%), and other products (5.33%) [2]. - Sanwang Communication operates within the communication equipment sector, specifically in communication network devices and components [2].

Core Points - The stock price of Sanmu Group decreased by 2.07% on December 2, trading at 6.14 CNY per share with a market capitalization of 2.858 billion CNY [1] - Year-to-date, the stock has increased by 67.30%, with a 4.96% rise in the last five trading days and a 29.81% increase over the last 20 days [1] - The company has appeared on the trading leaderboard 10 times this year, with the most recent net buy of 23.3913 million CNY on November 26 [1] Company Overview - Sanmu Group, established on October 24, 1992, and listed on November 21, 1996, is based in Fuzhou, Fujian Province [2] - The company’s main business activities include import and export trade (94.27% of revenue), real estate development (2.77%), property management (1.36%), leasing (1.22%), and hotel services (0.24%) [2] - As of October 20, 2025, the number of shareholders increased by 1.33% to 28,600, with an average of 16,275 circulating shares per shareholder [2] Financial Performance - For the period from January to September 2025, Sanmu Group reported a revenue of 4.609 billion CNY, a year-on-year decrease of 51.14%, and a net profit attributable to shareholders of -137 million CNY, down 49.90% [2] - The company has distributed a total of 92.8516 million CNY in dividends since its A-share listing, with no dividends paid in the last three years [3] Shareholder Information - As of September 30, 2025, the seventh largest circulating shareholder is the Noan Multi-Strategy Mixed A fund, holding 4.0275 million shares as a new shareholder [3]

Core Viewpoint - Miao Exhibition's stock price has shown a positive trend recently, with a 2.24% increase on December 1, 2023, and a total market capitalization of 4.642 billion yuan [1] Group 1: Stock Performance - As of December 1, 2023, Miao Exhibition's stock price is 15.53 yuan per share, with a trading volume of 75.52 million yuan and a turnover rate of 2.85% [1] - Year-to-date, the stock price has increased by 2.75%, with a 4.51% rise over the last five trading days and a 9.75% increase over the last 20 days, while it has decreased by 2.47% over the last 60 days [1] Group 2: Financial Performance - For the period from January to September 2025, Miao Exhibition reported a revenue of 401 million yuan, a year-on-year decrease of 5.67%, and a net profit attributable to shareholders of 34.63 million yuan, down 49.17% year-on-year [1] - The company has distributed a total of 344 million yuan in dividends since its A-share listing, with 244 million yuan distributed over the past three years [2] Group 3: Shareholder Information - As of September 30, 2025, Miao Exhibition had 12,000 shareholders, a decrease of 6.98% from the previous period, with an average of 14,435 circulating shares per shareholder, an increase of 7.36% [1] - Among the top ten circulating shareholders, the Jiashi Theme New Power Mixed Fund (070021) holds 1.3794 million shares, having decreased its holdings by 189,200 shares compared to the previous period [2]

Core Viewpoint - Liansheng Technology's stock has shown a modest increase in recent trading sessions, with a notable rise in trading volume and a mixed financial performance in the latest reporting period [1][2]. Company Overview - Liansheng Technology Co., Ltd. is located in Xiamen, Fujian Province, and was established on April 1, 2004. The company went public on February 11, 2010. Its main business includes providing enterprise email, e-commerce website construction, network domain names, and office automation systems, while also expanding into mobile cloud office services and internet gaming [1]. Financial Performance - For the period from January to September 2025, Liansheng Technology reported a revenue of 295 million yuan, representing a year-on-year decrease of 5.30%. The net profit attributable to shareholders was -90.12 million yuan, a decline of 36.09% compared to the previous year [2]. - The company has cumulatively distributed 97.91 million yuan in dividends since its A-share listing, with no dividends paid in the last three years [3]. Stock Performance - As of December 1, Liansheng Technology's stock price increased by 2.02%, reaching 7.07 yuan per share, with a total market capitalization of 2.631 billion yuan. The stock has risen 5.68% year-to-date, with a 2.46% increase over the last five trading days [1]. - The stock has seen a net inflow of 4.26 million yuan from main funds, with significant buying activity from large orders [1]. Shareholder Information - As of September 30, 2025, Liansheng Technology had 25,300 shareholders, an increase of 9.88% from the previous period. The average number of circulating shares per shareholder was 14,489, down by 8.59% [2]. - Among the top ten circulating shareholders, Huaxia Industry Prosperity Mixed A ranked fifth, holding 7.36 million shares, a decrease of 291,000 shares from the previous period [3].

Quantitative Models and Construction Methods - **Model Name**: Diffusion Index Model **Construction Idea**: The model monitors the critical points of future diffusion index changes to predict market trends[38][39] **Construction Process**: 1. The horizontal axis represents the percentage change in stock prices from the current level, ranging from +10% to -10% 2. The vertical axis represents the length of the retrospective or future window period, ranging from 20 days to 10 days 3. For example, at a horizontal axis value of 0.95 and a vertical axis value of 15 days, the diffusion index value is 0.07, indicating that if all stocks in the micro-cap index drop by 5% after 5 days, the diffusion index value will be 0.07[38] **Evaluation**: The model is effective in identifying potential turning points in the market[39] - **Model Name**: First Threshold Method (Left-Side Trading) **Construction Idea**: This method triggers signals based on predefined threshold values[42] **Construction Process**: 1. On November 14, 2025, the closing value of the diffusion index reached 0.925, triggering a sell signal[42] **Evaluation**: Useful for early signal generation but may require further validation[42] - **Model Name**: Delayed Threshold Method (Right-Side Trading) **Construction Idea**: Signals are generated after a delay to confirm trends[44][46] **Construction Process**: 1. On November 17, 2025, the closing value of the diffusion index reached 0.8975, triggering a sell signal[46] **Evaluation**: Provides more reliable signals by avoiding premature actions[46] - **Model Name**: Dual Moving Average Method (Adaptive Trading) **Construction Idea**: Uses moving averages to adapt to market changes[47] **Construction Process**: 1. On November 25, 2025, the model issued a sell signal based on the dual moving average strategy[47] **Evaluation**: Effective in capturing adaptive trends but may lag in volatile markets[47] Model Backtesting Results - **Diffusion Index Model**: Current value is 0.49, indicating a medium level with potential high volatility in the coming week[38][39] - **First Threshold Method**: Triggered sell signal at 0.925 on November 14, 2025[42] - **Delayed Threshold Method**: Triggered sell signal at 0.8975 on November 17, 2025[46] - **Dual Moving Average Method**: Triggered sell signal on November 25, 2025[47] Quantitative Factors and Construction Methods - **Factor Name**: 10-Day Total Market Cap Turnover Rate **Construction Idea**: Measures liquidity by turnover rate over a 10-day period[5][16][32] **Construction Process**: 1. Calculate the turnover rate using the formula: $ TurnoverRate = \frac{Volume}{MarketCap} $ 2. Aggregate data over a 10-day window[5][16][32] **Evaluation**: High rank IC indicates strong predictive power[5][16][32] - **Factor Name**: 10-Day Free Float Market Cap Turnover Rate **Construction Idea**: Similar to the above but focuses on free float market cap[5][16][32] **Construction Process**: 1. Use the same formula as above but replace market cap with free float market cap[5][16][32] **Evaluation**: High rank IC suggests good performance in liquidity prediction[5][16][32] - **Factor Name**: Beta Factor **Construction Idea**: Measures stock sensitivity to market movements[5][16][32] **Construction Process**: 1. Calculate beta using regression analysis: $ Beta = \frac{Cov(R_i, R_m)}{Var(R_m)} $ where $ R_i $ is the return of the stock and $ R_m $ is the return of the market[5][16][32] **Evaluation**: Positive rank IC indicates effective market sensitivity measurement[5][16][32] - **Factor Name**: Liquidity Factor **Construction Idea**: Assesses stock liquidity based on trading volume and price impact[5][16][32] **Construction Process**: 1. Calculate liquidity using the formula: $ Liquidity = \frac{Volume}{PriceImpact} $ 2. Normalize the data for comparison[5][16][32] **Evaluation**: High rank IC reflects strong predictive ability for liquidity[5][16][32] - **Factor Name**: Standardized Expected Earnings Factor **Construction Idea**: Evaluates expected earnings adjusted for market conditions[5][16][32] **Construction Process**: 1. Standardize expected earnings using z-scores: $ Z = \frac{Earnings - Mean(Earnings)}{StdDev(Earnings)} $ 2. Use standardized values for ranking[5][16][32] **Evaluation**: Positive rank IC indicates reliable earnings prediction[5][16][32] Factor Backtesting Results - **10-Day Total Market Cap Turnover Rate**: Rank IC 0.17, historical average -0.058[5][16][32] - **10-Day Free Float Market Cap Turnover Rate**: Rank IC 0.159, historical average -0.06[5][16][32] - **Beta Factor**: Rank IC 0.152, historical average 0.003[5][16][32] - **Liquidity Factor**: Rank IC 0.151, historical average -0.04[5][16][32] - **Standardized Expected Earnings Factor**: Rank IC 0.133, historical average 0.013[5][16][32] Composite Strategy Performance - **Strategy Name**: Small Cap Low Volatility 50 Strategy **Construction Idea**: Selects 50 stocks with small market cap and low volatility from micro-cap index components[8][16][34] **Construction Process**: 1. Filter stocks based on market cap and volatility criteria 2. Rebalance portfolio bi-weekly[8][16][34] **Evaluation**: Demonstrates strong performance in 2025 but underperformed in 2024[8][16][34] Strategy Backtesting Results - **Small Cap Low Volatility 50 Strategy**: - 2024 Return: 7.07%, Excess Return: -2.93%[8][16][34] - 2025 YTD Return: 74.15%, Weekly Excess Return: 0.22%[8][16][34]

Group 1 - The core viewpoint of the news is that Meiside's stock has shown a mixed performance in recent months, with a year-to-date increase of 20.61% and a recent drop in the last 20 and 60 days [1] - As of December 1, Meiside's stock price was 12.75 yuan per share, with a market capitalization of 2.335 billion yuan [1] - The company has a significant revenue composition, with hard foam additives accounting for 77.45% of its main business income, soft foam additives at 19.54%, and other contributions at 3.01% [1] Group 2 - As of September 30, the number of shareholders for Meiside increased by 11.89% to 12,000, while the average circulating shares per person decreased by 10.62% to 15,272 shares [2] - For the period from January to September 2025, Meiside reported a revenue of 466 million yuan, reflecting a year-on-year growth of 4.56%, but the net profit attributable to shareholders decreased by 41.83% to 45.17 million yuan [2] - The company has distributed a total of 189 million yuan in dividends since its A-share listing, with 83.33 million yuan distributed over the past three years [3] Group 3 - The top ten circulating shareholders include new entrants such as Nuoan Multi-Strategy Mixed A and CITIC Prudential Multi-Strategy Mixed A, holding 1.247 million shares and 733,500 shares respectively [3]

Core Points - The stock price of Chenhua Co., Ltd. increased by 2.01% on December 1, reaching 12.18 CNY per share, with a total market capitalization of 2.619 billion CNY [1] - Year-to-date, the stock has risen by 24.27%, with a 7.41% increase over the last five trading days [2] Company Overview - Chenhua Co., Ltd. was established on May 12, 1995, and went public on February 13, 2017. The company specializes in the research, production, and sales of fine chemical new materials, primarily using olefin oxide, fatty alcohol, and siloxane as raw materials [2] - The main revenue composition includes surfactants (81.58%), flame retardants (11.11%), silicone rubber (6.48%), and others (0.83%) [2] - The company is classified under the basic chemical industry, specifically in chemical products and other chemical products [2] Financial Performance - For the period from January to September 2025, Chenhua Co., Ltd. reported a revenue of 653 million CNY, a year-on-year decrease of 4.76%, and a net profit attributable to shareholders of 52.81 million CNY, down 20.80% year-on-year [2] - The company has distributed a total of 350 million CNY in dividends since its A-share listing, with 151 million CNY distributed over the past three years [3] Shareholder Information - As of November 20, the number of shareholders for Chenhua Co., Ltd. was 15,400, a decrease of 1.91% from the previous period, with an average of 10,469 circulating shares per shareholder, an increase of 1.95% [2]