指数调仓，对我们投资有啥影响呢？｜第421期精品课程

Core Viewpoint - Index rebalancing is a process that ensures the vitality of indices by removing stocks that do not meet criteria and adding new ones, which can impact the valuation of various indices [3][4][5]. Group 1: Index Rebalancing Types - Index rebalancing can be categorized into two types: temporary adjustments due to special events and regular adjustments based on sample stability [6][9]. - Temporary adjustments are rare, while regular adjustments occur periodically, such as every quarter or semi-annually [7][12]. Group 2: Frequency and Timing of Regular Rebalancing - Regular rebalancing occurs at different frequencies: quarterly, semi-annually, or annually, with specific dates for major indices like the CSI 300 and CSI 500 [13][14][16]. Group 3: Impact on Valuation - The recent rebalancing has led to changes in average valuations for various indices, with the CSI 300 and CSI 500 seeing increases in both price-to-earnings (P/E) and price-to-book (P/B) ratios [17][22][23]. - The CSI 2000 index, however, experienced a decrease in valuation due to the removal of loss-making companies, which increased the average earnings denominator [26]. Group 4: Strategy Indices Valuation Changes - Strategy indices like the CSI A500 and CSI Dividend have shown varying impacts on valuations post-rebalancing, with some indices experiencing increases while others, like the CSI Value, typically see decreases [31][32][39]. Group 5: Investor Considerations - Investors do not need to take action during index rebalancing, as it is managed by fund managers, and they should continue to hold their investments [59][61]. - The rebalancing process can lead to changes in index valuations, which may enhance the investment value of certain indices, particularly those with value strategies [62].