指数从正常估值到高估，会涨多少呢？

Core Viewpoint - The A-share market has experienced a rare six-week consecutive rise, with the Shanghai Composite Index consistently surpassing 3600 points, indicating a recovery from undervaluation to normal valuation, with potential for further increases [1]. Group 1: Factors Influencing Index Growth - The potential increase in index value depends on two main factors: the difference in valuation at the time of buying and selling, and the growth in earnings during the holding period [5]. - The formula for index points is defined as: Index Points = Valuation * Earnings [4]. - Historical data shows that from May 2018 to March 2021, the CSI All Share Index rose over 80%, with valuation improvement contributing approximately 40-50% of this gain [7][8]. Group 2: Valuation and Earnings Growth - The increase in index value from normal to high valuation is generally estimated to be between 20-40%, depending on the volatility of the index [12]. - While valuation improvement is relatively predictable, the growth in earnings is more challenging to forecast and is influenced by economic cycles [14][15]. - Different bull markets exhibit varying degrees of index growth due to fluctuations in earnings, as seen in the bull markets of 2007, 2009, and 2015 [16]. Group 3: Investment Strategy - The optimal investment scenario is characterized by a "Davis Double Play," where low valuations during a downturn are followed by both valuation and earnings growth as the market recovers [17][20]. - In Q1 2025, listed companies showed a year-on-year earnings growth of 4.46%, indicating signs of recovery, particularly in sectors like technology and pharmaceuticals [21]. - The implementation of favorable policies in the previous year is expected to gradually reflect in the earnings growth of listed companies [26].