Core Viewpoint - The horse racing concept sector has experienced a decline of 2.93%, ranking among the top declines in concept sectors, with notable stocks such as *ST Zhengping hitting the daily limit down, and Xinhua Du, Hainan Rubber, and Zhujiang Piano also showing significant declines [1] Group 1: Sector Performance - The horse racing concept sector saw a net outflow of 163 million yuan from main funds today, with six stocks experiencing net outflows [2] - The top stock with net outflow is Xinhua Du, which had a net outflow of 105 million yuan, followed by Hainan Rubber, Zhongti Industry, and Zhongmu Shares with net outflows of 30.51 million yuan, 17.94 million yuan, and 3.37 million yuan respectively [2] Group 2: Individual Stock Performance - Xinhua Du's stock price decreased by 4.85% with a turnover rate of 16.72% and a main fund outflow of 104.65 million yuan [2] - Hainan Rubber's stock price fell by 2.76% with a turnover rate of 1.85% and a main fund outflow of 30.51 million yuan [2] - Zhongti Industry's stock price decreased by 1.37% with a turnover rate of 2.39% and a main fund outflow of 17.94 million yuan [2] - Zhongmu Shares' stock price declined by 1.39% with a turnover rate of 2.37% and a main fund outflow of 3.37 million yuan [2] - Zhujiang Piano's stock price fell by 2.27% with a turnover rate of 1.04% and a main fund outflow of 3.32 million yuan [2] - *ST Zhengping's stock price decreased by 4.96% with a turnover rate of 0.13% and a main fund outflow of 3.00 million yuan [2]

Group 1: Strong Stocks - As of November 4, the Shanghai Composite Index fell by 0.41% to 3960.19 points, the Shenzhen Component Index decreased by 1.71% to 13175.22 points, and the ChiNext Index dropped by 1.96% to 3134.09 points [1] - A total of 67 stocks in the A-share market hit the daily limit up, with the top three strong stocks being Pingtan Development (000592), Haixia Innovation (300300), and Haima Automobile (000572) [1] - The detailed data for the top 10 strong stocks includes: - Pingtan Development: 13 days with 10 limit ups, turnover rate of 19.55% [1] - Haixia Innovation: 7 days with 4 limit ups, turnover rate of 44.42% [1] - Haima Automobile: 3 consecutive limit ups, turnover rate of 12.11% [1] Group 2: Strong Concept Sectors - The top three concept sectors based on A-share performance are: Cross-Strait Relations, Fujian Free Trade Zone, and Ice and Snow Industry [2] - The detailed performance of the top 10 concept sectors includes: - Cross-Strait Relations: increased by 2.09% [3] - Fujian Free Trade Zone: increased by 1.74% [3] - Ice and Snow Industry: increased by 1.35% [3]

Quantitative Models and Construction - **Model Name**: DecompGRU **Model Construction Idea**: The model improves information interaction between time-series and cross-sectional data by introducing two simple de-mean modules on the GRU baseline model[18] **Model Construction Process**: 1. The DecompGRU model architecture is based on GRU as the baseline 2. Two de-mean modules are added to enhance the interaction between time-series and cross-sectional data 3. The model is trained using IC and weighted MSE loss functions[18] **Model Evaluation**: The model demonstrates improved interaction between time-series and cross-sectional data, enhancing prediction accuracy[18] Model Backtesting Results - **DecompGRU TOP200 Portfolio**: - Cumulative absolute return: 41.11% - Excess return relative to WIND All A equal-weight index: 13.98% - Maximum drawdown: 10.08% - Weekly win rate: 64.52% - Monthly win rate: 100% - October absolute return: 1.78%, excess return: -0.07%[11] - **ETF Rotation Portfolio**: - Cumulative absolute return: 19.06% - Excess return relative to benchmark: -2.00% - Maximum drawdown: 7.82% - Weekly win rate: 62.50% - Monthly win rate: 57.14% - October absolute return: -2.04%, excess return: -1.18%[14][15] Quantitative Factors and Construction - **Factor Name**: Sentiment Heat Factor **Factor Construction Idea**: The factor aggregates stock-level sentiment heat metrics (e.g., browsing, self-selection, and clicks) to represent broader market sentiment[19] **Factor Construction Process**: 1. Individual stock sentiment heat is calculated as the sum of browsing, self-selection, and click counts 2. The sentiment heat is normalized by dividing by the total market sentiment on the same day and multiplying by 10,000 3. Aggregated sentiment heat is used as a proxy for market sentiment at the index, industry, and concept levels[19] **Factor Evaluation**: The factor effectively captures market sentiment and its impact on pricing errors[19] Factor Backtesting Results - **Broad-based Index Sentiment Heat Rotation Strategy**: - Annualized return since 2017: 8.74% - Maximum drawdown: 23.5% - 2025 portfolio return: 38.5% - Benchmark return: 32.9%[28] - **Concept Sentiment Heat BOTTOM Portfolio**: - Annualized return: 15.71% - Maximum drawdown: 28.89% - 2025 portfolio return: 42.1%[41][44]

Core Insights - The article provides a ranking of open-end funds based on their net asset value growth as of October 31, 2025, highlighting the top and bottom performers in the market [2][4][6]. Fund Performance Summary - The top 10 funds with the highest net value growth include: 1. 中航优选领航混合发起C with a unit net value of 1.8264, up from 1.6624, showing an increase of 0.16 2. 中航优选领航混合发起A with a unit net value of 1.8359, up from 1.6711, also increasing by 0.16 3. 申万菱信医药先锋股票A with a unit net value of 0.5106, up from 0.4719, an increase of 0.03 4. 申万菱信医药先锋股票C with a unit net value of 0.5019, up from 0.4639, an increase of 0.03 5. 东方阿尔法健康产业混合发起C with a unit net value of 1.0013, up from 0.9259, an increase of 0.07 6. 东方阿尔法健康产业混合发起A with a unit net value of 1.0030, up from 0.9275, an increase of 0.07 7. 同泰大健康主题混合C with a unit net value of 0.5288, up from 0.4902, an increase of 0.03 8. 同泰大健康主题混合A with a unit net value of 0.5385, up from 0.4992, an increase of 0.03 9. 广发医药创新混合发起式C with a unit net value of 1.3928, up from 1.2939, an increase of 0.09 10. 广发医药创新混合发起式A with a unit net value of 1.4113, up from 1.3111, an increase of 0.10 [2][4]. - The bottom 10 funds with the lowest net value growth include: 1. 永赢高端制造A with a unit net value of 1.7642, down from 1.8874, a decrease of 0.12 2. 水赢高端制造C with a unit net value of 1.7430, down from 1.8647, a decrease of 0.12 3. 山证资管策略精选混合 with a unit net value of 1.6421, down from 1.7552, a decrease of 0.11 4. 德邦露星价值A with a unit net value of 3.3857, down from 3.6114, a decrease of 0.22 5. 德邦鑫星价值C with a unit net value of 3.2544, down from 3.4713, a decrease of 0.21 6. 宏利绩优混合A with a unit net value of 2.3849, down from 2.5435, a decrease of 0.15 7. 宏利绩优混合C with a unit net value of 2.3532, down from 2.5096, a decrease of 0.15 8. 信澳业绩驱动混合C with a unit net value of 1.5438, down from 1.6463, a decrease of 0.10 9. 长安鑫瑞科技6个月定开混合C with a unit net value of 0.9629, down from 1.0268, a decrease of 0.06 10. 信澳业绩驱动混合A with a unit net value of 1.5739, down from 1.6783, a decrease of 0.10 [4][6]. Market Analysis - The overall market showed a decline with the Shanghai Composite Index closing lower, while the ChiNext Index experienced a brief recovery before falling again. The total trading volume reached 2.35 trillion, with a market breadth of 3760 gainers to 1553 losers [6]. - Leading sectors included Media & Entertainment, Pharmaceuticals, Internet, and Hospitality, all showing gains of over 2%, while sectors like Communication Equipment and Semiconductors faced declines exceeding 3% [6].

Core Viewpoint - The recent decline in the Shanghai Composite Index by 1.38% is contrasted by a 0.77% increase in trading volume over the past three days, indicating a mixed market sentiment with significant capital inflows into specific sectors [1] Group 1: Market Performance - The Shanghai Composite Index has decreased by 1.38% over the last three days [1] - A-share trading volume has increased by 0.77% compared to the previous three days [1] Group 2: Capital Inflows - A total of 22 concept sectors experienced significant net capital inflows, with the top three being Kuaishou concept, AI data, and Xiaohongshu concept, attracting net inflows of 1.656 billion, 1.537 billion, and 1.063 billion respectively [1] - Kuaishou concept led with a net inflow of 1.656 billion, showing a price increase of 1.80% [1] - AI data sector followed with a net inflow of 1.537 billion and a price increase of 1.73% [1] - Xiaohongshu concept also saw a net inflow of 1.063 billion with a price increase of 1.74% [1]