小盘风格继续演绎，资产配置如何调整

Core Viewpoint - The current market exhibits significant structural characteristics, with a strong small-cap style persisting for some time, while discussions about the sustainability of this style have intensified as index valuations rise. A more pragmatic question is how to construct a strategy that performs well across different style phases [2]. Group 1: Market Analysis - The market has shown that small-cap stocks often outperform large-cap stocks due to risk premiums associated with scale effects over the past decade [6]. - The cumulative return trend of small-cap versus large-cap styles has been analyzed using the CSI 300 Index and the Guozheng 2000 Index, with the latter capturing a broader and more growth-oriented small-cap style [2][5]. - Since 2013, small-cap stocks have entered a strong performance phase, while large-cap stocks gained strength due to macro factors like the "beautiful 50" narrative, trade wars, and the pandemic [8]. Group 2: Strategy Performance - From 2017 to 2020, the CSI 500 Index enhancement strategy slightly outperformed the CSI 300 Index enhancement strategy, achieving a return of 80.78% compared to 75.07% [10]. - In 2018, during a broad market downturn, strategies like CTA, arbitrage, and bond strategies generated positive returns, effectively hedging some risks associated with equity exposure [11]. - The analysis suggests that after a bull market in 2025, investors may consider rebalancing their portfolios, incorporating strategies like CSI 500 enhancement, CTA, arbitrage, and bond strategies to reduce future volatility [11].