行业配置报告（2025年3月）：行业配置策略与ETF组合构建

Core Insights - The report highlights the latest industry allocation strategy, recommending sectors such as steel, defense, real estate, pharmaceuticals, electronics, and power equipment & new energy for March 2025 [1][21]. - The previous month's portfolio performance showed a monthly return of +1.39% in February 2025, underperforming the industry equal-weight index by -2.14% [1]. - The report also discusses the performance of the non-bank financial, banking, electronics, computer, agriculture, automotive sectors, with a monthly return of +1.81% in February 2025, again underperforming the industry equal-weight index by -1.72% [2]. Industry Rotation Models Similar Expected Difference Factor Model - The model aims to identify stocks with similar performance that have not yet surged, using a distance metric based on P/E ratios, ROE, and asset growth rates [10]. - Historical backtesting from December 2016 to February 2025 indicates a strong industry selection capability, with an average Information Coefficient (IC) of 0.10 and a success rate of 63.27% [12][13]. - The strategy has shown an annualized return of 11.82% with a volatility of 0.18, significantly outperforming the Wind All A Index and the industry equal-weight index [15][16]. Analyst Expected Marginal Change Model - This model utilizes changes in consensus earnings forecasts to gauge industry sentiment, scoring based on positive or negative changes [22]. - Historical performance from December 2016 to February 2025 shows an average IC of 0.07, with a success rate of 60.20% [23][24]. - The strategy achieved an annualized return of 9.35% with a volatility of 0.19, also outperforming the Wind All A Index [28][29]. ETF Portfolio Construction - The recommended ETF sectors for March 2025 include real estate, defense, electronics, automotive, and power equipment & new energy, with specific fund codes and share amounts detailed [38].