［6月11日］指数估值数据(又到指数调仓日，估值有哪些变化？）

Core Viewpoint - The article discusses the upcoming index rebalancing scheduled for June, highlighting its impact on various indices and the valuation changes of stocks involved in the rebalancing process [7][8][39]. Group 1: Market Overview - The overall market experienced an increase, with indices reaching between 4.9 and 5 stars [1][2]. - Large, mid, and small-cap stocks all saw gains, with the CSI 300 index showing slightly higher growth compared to small-cap stocks [3][4][5]. - The Hong Kong stock market also rose, led by the technology index [6]. Group 2: Index Rebalancing - June marks the index rebalancing period, which occurs in June and December, specifically after the second Friday of the month [7][8]. - Regular rebalancing is necessary due to stock performance fluctuations, which may lead to some stocks no longer meeting the index criteria [9]. - Rebalancing does not affect the net value of index funds significantly, as they sell stocks being removed and buy those being added without major changes in fund value [10][11]. Group 3: Valuation Changes - The rebalancing will have a notable impact on the valuations of many indices, particularly favoring small and mid-cap stocks due to their strong performance over the past six months [13][15][16]. - For the CSI 300 index, seven stocks were adjusted, resulting in a decrease in average price-to-earnings (P/E) ratio from 25.8 to 18.4, while the price-to-book (P/B) ratio slightly increased [18][19]. - The CSI 500 index saw a change of 50 stocks, with both P/E and P/B ratios experiencing slight increases post-rebalancing [20]. - The CSI 1000 and CSI 2000 indices, representing small and micro-cap stocks, respectively, also underwent significant changes, reflecting the upward valuation trend of smaller stocks [21]. Group 4: Strategy Indices - Strategy indices, such as value and low volatility indices, typically see a decrease in valuation after rebalancing due to their selection criteria favoring lower P/E and P/B stocks [32][36]. - The A500 index adjusted 21 stocks, with a slight decrease in average P/E from 27.3 to 25.26 [29][30]. - The value index adjusted nine stocks, resulting in a decrease in average P/E from 16.87 to 12.57 [33][34]. Group 5: Investor Guidance - Investors do not need to take any specific actions regarding the index rebalancing, as fund managers will handle the adjustments automatically [12][41].