202[Table_ReportInfo] 6 年 02 月 25 日 证券研究报告•金融工程专题报告 资产配置研究系列三 基于 BLACK-LITTERMAN 模型 融合资产择时与风格轮动的资产配置研究 在全球经济周期缩短、地缘政治冲突与技术革命叠加的背景下，市场"不确定性" 已成为投资管理的核心挑战，构建抗脆弱的组合是资本稳健增值的关键。传统均 值-方差模型（MVO）虽为资产配置基石，却因输入参数敏感性高、难以系统融合 主观观点而受限。Black-Litterman（BL）模型通过贝叶斯方法将市场均衡收益与 投资者观点结合，在量化严谨性中兼容主观判断，为机构资产配置提供新范式。 本文基于 BL模型原理，构建"战略+战术"双轮驱动的资产配置模型。战略端以 资产择时与回归分析生成资产收益后验分布，提升配置决策的前瞻性；战术端设 计 A股风格轮动策略，动态跟踪市场风格切换优化投资组合，增强 A股资产收益 表现。模型实现了长期战略配置与短期战术调整的有机结合，为大类资产配置提 供了系统性解决方案。 资产择时层 债券端立足经济基本面（经济增长、地产周期）与市场利率（质押回购、国债利 率）择时中债国债；商品端围绕黄金 ...

Core Viewpoint - The article discusses a significant decline in the shares of major broad-based ETFs, attributed to a mysterious institution holding large portions of these ETFs, leading to a substantial outflow of funds from the market [3][8]. ETF Share Decline - Several leading broad-based ETFs have experienced a drastic reduction in shares, with many seeing their latest shares cut in half compared to the previous year-end totals [3]. - The mysterious institution holds significant shares in 22 ETFs, with the total shares at year-end being 14,964 billion, and an estimated outflow of approximately 9,426 billion this year, representing about 63% of the institution's holdings [8][9]. Specific ETF Data - The following ETFs have shown notable declines in shares: - HuShen 300 ETF (华泰柏瑞): Last shares 475 million, down from 888 million [4]. - HuShen 300 ETF (易方达): Last shares 325 million, down from 1,115 million [4]. - Shanghai 50 ETF: Last shares 252 million, down from 567 million [4]. - ChiNext ETF (创业板): Last shares 191 million, down from 315 million [4]. - The estimated outflow amounts for specific ETFs include: - HuShen 300 ETF (华泰柏瑞): 1,965 million [9]. - HuShen 300 ETF (易方达): 1,538 million [9]. - Shanghai 50 ETF: 991 million [9]. Market Trends - Since January 14, there has been a rapid outflow from major broad-based ETFs, with a cumulative net outflow of approximately 9,426 billion, nearing the 10 trillion mark [8][6]. - The pace of outflows has slowed recently, with some ETFs experiencing small inflows in the last few trading days [6][11]. Institutional Behavior - The mysterious institution appears to have ceased significant selling in the HuShen 300 ETFs while continuing to exert pressure on the mid-cap stocks represented by the ChiNext and other mid-cap ETFs [14][11]. - The market is currently characterized by a strong performance in large-cap and small-cap stocks, while mid-cap stocks are under pressure [14]. Investor Sentiment - There is a prevailing sense of helplessness in the market, as traditional analysis methods are failing to predict movements due to the influence of the mysterious institution [17]. - The article suggests that the current market dynamics are heavily influenced by the actions of this institution, which is perceived as controlling the market's direction [20][19].

Group 1 - The A-share market saw significant gains on December 17, with the Shanghai Composite Index rising over 1% and the ChiNext Index increasing by more than 3%, driven by active performances from stocks like Tianfu Communication and New Yi Sheng [1] - On December 15, the ChiNext Index underwent a sample stock adjustment, adding eight new companies, including Shuanglin Co., Changshan Pharmaceutical, and Fulin Precision, which increased the weight of strategic emerging industries in the index to 93% [1] - The newly adjusted sample companies reported a year-on-year revenue growth of 16% and a net profit growth of 24% for the first three quarters, with R&D expenses increasing by 13%, highlighting a strong focus on innovation [1] Group 2 - The low-cost broad-based ChiNext ETF, Guangfa (159952), attracted significant net inflows, exceeding 13.4 billion yuan, providing investors with a cost-effective tool for investing in leading companies in the ChiNext market [2] - Current market conditions, characterized by a combination of overseas easing and domestic supportive policies, are favorable for risk assets, suggesting a potential for a cross-year market rally [2] - Looking ahead to next year, as corporate earnings continue to recover, the market structure is expected to evolve from a focus on technology to a more balanced performance across various sectors, with key themes including artificial intelligence, anti-involution, and new energy [2]

Group 1: National Policy and Industry Development - The Ministry of Industry and Information Technology has initiated the creation of national emerging industry development demonstration bases, focusing on key areas such as new generation information technology, new energy, new materials, and high-end equipment, with a target of establishing around 100 park-type and 1,000 enterprise-type demonstration bases by 2035 [1] - The 22nd China International Semiconductor Expo (IC China 2025) has commenced, with plans to promote high-quality development in the integrated circuit industry through three main strategies: enhancing industry chain collaboration, creating a favorable industrial environment, and fostering open cooperation [1] Group 2: Electronic Industry Performance - The electronic industry continues to show high growth, with overall revenue increasing by 11% year-on-year and net profit attributable to shareholders rising by 29% in the first three quarters of 2025 [2] - The consumer electronics sector benefited from the traditional peak season, with third-quarter revenue and net profit increasing by 19% and 26% year-on-year, respectively [2] - The semiconductor sector, driven by AI demand, saw a remarkable 73% year-on-year increase in net profit for the third quarter, indicating ongoing improvement in industry chain profitability [2] Group 3: Market Trends and Projections - TrendForce forecasts a 23%-28% quarter-on-quarter increase in DRAM contract prices in Q4 2025, supported by high demand for HBM and a price increase trend for NAND Flash due to production control and inventory reduction [2] - The server storage demand is expected to grow significantly, with its share in DRAM projected to rise to 36% and in NAND Flash to 30% by 2025 [2] - Domestic storage manufacturers are anticipated to benefit from industry recovery amid high demand for AI and accelerated domestic substitution [2] Group 4: Market Liquidity and ETF Performance - The central bank announced a 10 billion yuan medium-term lending facility (MLF) operation, maintaining a net injection of 1 billion yuan for November, indicating a continued loose liquidity stance [3] - The ChiNext Index surged by 1.86% on November 25, 2025, with the ChiNext ETF (159952) also rising by 1.86%, reflecting strong market performance [3] - Over the past three months, the ChiNext ETF has seen a significant scale increase of 12.14 billion yuan, with a net inflow of 5.67 billion yuan over the last five trading days [4]

Group 1 - The A-share market showed a collective rise on October 15, 2025, with the ChiNext Index increasing by 2.36%, driven by a rebound in technology stocks and significant activity in sectors like robotics, consumer electronics, and pharmaceuticals [1] - Shenwan Hongyuan Securities noted that the technology industry will continue to see more catalysts compared to cyclical sectors before spring 2026, suggesting a prolonged trend in technology growth [1] - Longjiang Securities expressed optimism about the AI computing power industry, highlighting that leading companies in the optical module sector have a significant upside in valuation compared to historical peaks [1] Group 2 - Chinese photovoltaic companies have recently secured nearly 25 GW of overseas orders since September, showcasing strong performance in international markets [2] - The National Development and Reform Commission and the State Administration for Market Regulation have issued guidelines to combat price disorder in the photovoltaic industry, which is expected to support domestic prices for components and wind turbines [2] - Zhongyuan Securities anticipates a rebound in earnings growth across most industries in the upcoming Q3 reports, driven by low base effects from the previous year, which will bolster market confidence [2] Group 3 - As of October 15, 2025, the ChiNext ETF (159952) rose by 2.35%, with a notable increase of over 37% in the past three months [3] - The top ten weighted stocks in the ChiNext Index account for 57.49% of the index, with significant gains from companies like Longying Precision and Xunwei Communication [3] - The ChiNext ETF has seen a net inflow of 580 million yuan over the past week, indicating strong investor interest [3] Group 4 - The ChiNext ETF closely tracks the ChiNext Index, consisting of 100 stocks with high market capitalization and liquidity, focusing on strategic emerging industries such as power equipment and biomedicine [4]

Core Viewpoint - The market showed strong enthusiasm for investment, with significant inflows into stock ETFs, particularly in sectors like AI and new energy, despite a slight decline in the Shanghai Composite Index [1][2]. Fund Flows - Over the past week, the total net inflow into stock ETFs reached over 286 billion yuan, with notable inflows on three consecutive days [1]. - On Friday alone, the total net inflow into stock ETFs was 71.24 billion yuan, with A-share ETFs contributing 38.42 billion yuan [2]. - Industry-themed ETFs, particularly those tracking the securities index and Hong Kong internet index, saw the highest net inflows, totaling 35.02 billion yuan and 31.71 billion yuan respectively [4]. ETF Performance - The securities ETF experienced a net inflow of nearly 48 billion yuan, while the broker ETF saw a net inflow of approximately 23 billion yuan [6]. - The top-performing ETFs included the securities ETF with a net inflow of 47.91 billion yuan and the Hong Kong internet ETF with 45.69 billion yuan [7]. - The robot ETF from E Fund had a net inflow of 4.2 billion yuan, indicating strong interest in the robotics sector [4][5]. Sector Insights - The AI and new energy sectors are driving market performance, with the ChiNext Index rising by 2.34% and the Sci-Tech 50 Index by 1.84% over the week [2]. - The human-shaped robot industry is expected to gain more attention as production schedules become clearer in the coming years [8]. Outflows - In contrast, several ETFs tracking the ChiNext 50 Index and convertible bond indices faced significant outflows, indicating profit-taking behavior among investors [9].

Group 1 - The A-share market saw all three major indices open lower but then rise, with the ChiNext Index reaching a new high of 3168.68 points on September 18, 2025, marking a 24.19% increase over the past month, outperforming other major indices [1] - The semiconductor sector experienced strong gains, with SMIC hitting a new high, while the CPO and humanoid robot concepts remained active [1] - As of September 18, 2025, the ChiNext Index was up 0.40%, and the ChiNext ETF (Guangfa, 159952) rose by 0.47%, achieving a four-day consecutive increase [1] Group 2 - The ChiNext ETF (Guangfa) reached a new high in scale at 15.037 billion yuan and a new three-month high in shares at 7.898 billion [2] - The ETF has seen continuous net inflows over the past four days, with a peak single-day net inflow of 360 million yuan, totaling 1.007 billion yuan [2] - Recent favorable developments in the new energy industry include breakthroughs in solid-state battery technology, rising demand for energy storage, and efforts to stabilize prices [2] Group 3 - The ChiNext Index is heavily weighted in the new energy sector, with battery (22.03%), communication equipment (16.30%), securities (7.84%), and photovoltaic equipment (4.98%) being the primary industries [1] - The ChiNext ETF closely tracks the ChiNext Index, consisting of 100 stocks with high market capitalization and liquidity, focusing on strategic emerging industries such as power equipment, biomedicine, and electronics [2]

Core Viewpoint - The ChiNext Index has shown strong performance, reaching a new high for the year, driven by sectors such as diversified finance, optical electronics, electric machinery, consumer electronics, and automotive parts [1] Group 1: Market Performance - On September 17, 2025, the ChiNext Index opened lower but surged nearly 2%, peaking at 3143.62 points, marking a new annual high [1] - The ChiNext ETF (Guangfa, 159952) rose by 1.61%, achieving three consecutive days of gains [1] - Key component stocks such as Changying Precision surged by 12.40%, Sanhuan Group by 8.30%, and Guiding Compass by 7.79% [1] - The top ten weighted stocks accounted for 55.15% of the index, with Ningde Times being the largest, increasing by 6.24% and reaching a historical high [1] - Over the past week, the ChiNext ETF (Guangfa) has accumulated a 7.54% increase [1] Group 2: Fund Flows and ETF Growth - As of September 16, 2025, the ChiNext ETF (Guangfa) reached a record size of 14.507 billion yuan [2] - The ETF's shares increased by 3.93 million over the past week, indicating significant growth [2] - The ETF experienced continuous net inflows over three days, with a peak single-day net inflow of 360 million yuan, totaling 762 million yuan [2] Group 3: Policy and Sector Insights - The National Development and Reform Commission and the Energy Administration released a plan for new energy storage, aiming for an installed capacity of over 180 million kilowatts by 2027, which is expected to drive advancements in long-duration energy storage technologies [2] - The demand for high-reliability power systems is surging due to AI computing needs in data centers, making new energy storage a critical requirement [2] - The technology sector is experiencing rotation, with active performance in robotics and related components, influenced by upcoming events such as Elon Musk's Optimus robot technology conference [2] - Long-term investment focus areas include AI computing, robotics, and innovative pharmaceuticals, while also monitoring improvements in supply-demand dynamics in lithium batteries, photovoltaics, and metals under the "anti-involution" context [2] Group 4: Future Outlook - The sustainability of the ChiNext's recovery depends on two main variables: the strength of the global technology cycle and GPU demand surpassing the previous consumer electronics cycle, as well as the impact of new technologies like solid-state batteries on the second growth curve of new energy [3] - The ChiNext Index is supported by low valuations, industry resonance, and capital inflows, indicating strong medium to long-term investment value [3] - The ChiNext ETF (Guangfa) closely tracks the ChiNext Index, comprising 100 stocks with high market capitalization and liquidity, focusing on strategic emerging industries such as electric power equipment, pharmaceuticals, and electronics [3]

Quantitative Models and Construction Methods 1. Model Name: Industry Crowdedness Monitoring Model - **Model Construction Idea**: This model is designed to monitor the crowdedness levels of Shenwan First-Level Industry Indices on a daily basis, identifying industries with high or low crowdedness levels to provide insights for potential investment opportunities[3] - **Model Construction Process**: The model calculates the crowdedness levels of various industries based on daily data. It identifies industries with significant changes in crowdedness levels and tracks the inflow and outflow of major funds in these industries. For example, on the previous trading day, industries such as non-ferrous metals, electrical equipment, and electronics had high crowdedness levels, while food and beverage, as well as beauty care, exhibited lower levels[3] - **Model Evaluation**: The model provides a useful tool for identifying industry trends and fund flow dynamics, which can help investors make informed decisions[3] 2. Model Name: Premium Rate Z-Score Model - **Model Construction Idea**: This model is used to screen ETF products with potential arbitrage opportunities by calculating the Z-score of their premium rates over a rolling window[4] - **Model Construction Process**: The model involves the following steps: 1. Calculate the premium rate of an ETF product as the percentage difference between its market price and its net asset value (NAV) 2. Compute the Z-score of the premium rate over a rolling window to identify deviations from the mean 3. Highlight ETF products with significant Z-scores as potential arbitrage opportunities while also flagging the risk of price corrections[4] - **Model Evaluation**: The model effectively identifies ETFs with potential mispricing, offering opportunities for arbitrage while cautioning about associated risks[4] --- Backtesting Results of Models 1. Industry Crowdedness Monitoring Model - **Key Observations**: - Non-ferrous metals, electrical equipment, and electronics had the highest crowdedness levels on the previous trading day[3] - Food and beverage, as well as beauty care, exhibited the lowest crowdedness levels[3] - Significant changes in crowdedness were observed in the automotive and light industry sectors[3] 2. Premium Rate Z-Score Model - **Key Observations**: - The model flagged ETF products with significant Z-scores as potential arbitrage opportunities[4] - Specific ETFs and their associated signals were not detailed in the report[4] --- Quantitative Factors and Construction Methods No specific quantitative factors were explicitly mentioned in the report. The focus was primarily on the construction and application of the two models described above. --- Backtesting Results of Factors No explicit backtesting results for individual factors were provided in the report. The analysis was centered on the models and their outputs.

Market Overview - The market experienced a V-shaped rebound on August 28, with the ChiNext Index leading the gains, and the STAR 50 Index rising over 7% [1][8] - A-shares had a total trading volume of 3 trillion yuan, a decrease of 196.9 billion yuan compared to the previous trading day [1] - The Shanghai Composite Index rose by 1.14%, the Shenzhen Component Index increased by 2.25%, and the ChiNext Index surged by 3.82% [1] Sector Performance - The computing power and chip sectors were the main focus, with over 2,800 stocks rising in the market [1] - CPO and other computing hardware stocks maintained strong performance, with Tianfu Communication and several others reaching historical highs [4] - Chip stocks collectively surged, with more than 10 stocks, including Zhangjiang Hi-Tech, hitting the daily limit [4] Notable Stocks - Cambricon Technologies' stock price reached 1,587.91 yuan per share, up 15.73%, with a market capitalization of approximately 664.3 billion yuan, surpassing Kweichow Moutai [6] - Kweichow Moutai's stock price was reported at 1,446.1 yuan per share, down 0.13%, with a market capitalization of about 1.82 trillion yuan [6] ETF Performance - Technology growth sectors showed strong performance, with significant increases in related ETF products. For instance, the performance of various ETFs from GF Fund since August includes: - STAR 50 ETF (588060) up 21.43% - STAR 100 ETF (588980) up 16.29% - ChiNext ETF (159952) up 16.96% - Double Innovation 50 ETF (588320) up 23.83% [10][11] Policy Support - Recent favorable policies for the technology growth sector include guidelines from the People's Bank of China and other departments to support new industrialization and the implementation of "Artificial Intelligence+" actions [11] - The total computing power scale is growing at an annual rate of approximately 30%, providing a solid foundation for the technology industry [11]