市场延续调整，关注A500ETF易方达（159361）、沪深300ETF易方达（510310）等产品后续表现

Core Viewpoint - The article provides an overview of the performance and characteristics of major stock indices in the Chinese market, including the CSI 300, CSI A500, ChiNext, and STAR Market indices, highlighting their respective market trends and valuation metrics. Group 1: Index Performance - The CSI 300 Index, composed of 300 stocks from the Shanghai and Shenzhen markets, experienced a decline of 0.5% with a rolling P/E ratio of 14.0 times [2] - The CSI A500 Index, which includes 500 stocks with good liquidity across various industries, saw a decrease of 0.6% and has a rolling P/E ratio of 16.5 times [2] - The ChiNext Index, tracking 100 large-cap stocks in the ChiNext market, reported a drop of 1.1% and has a rolling P/E ratio of 39.4 times [2] Group 2: Sector Composition - The ChiNext Index has a significant representation of strategic emerging industries, with nearly 60% of its composition in the power equipment, communication, and electronics sectors [2] - The STAR Market 50 ETF, which tracks the STAR Market 50 Index, is composed of 50 large-cap stocks with notable liquidity, emphasizing "hard technology" leaders, particularly in the semiconductor sector [2]