大盘震荡回调，关注A500ETF易方达(159361)、沪深300ETF易方达(510310)等产品布局机会

Market Overview - A-shares experienced a collective pullback on January 15, with total market turnover reaching 1.9 trillion yuan in half a day [1] - The major indices showed declines: the CSI 500 index fell by 0.3%, the CSI 300 index decreased by 0.2%, the ChiNext index dropped by 1.0%, and the STAR Market 50 index declined by 1.9% [1] Sector Performance - Active sectors included diamond mining, lithium battery electrolyte, and power battery, while satellite, commercial aerospace, and cultural media sectors faced adjustments [1] - In the Hong Kong market, chemical and oil sectors rose against the trend, while pharmaceutical and technology stocks collectively retreated [1] Index Details - The CSI 300 index consists of 300 large-cap stocks with a rolling P/E ratio of 14.3 times [2] - The CSI 500 index includes 500 stocks with a rolling P/E ratio of 17.5 times [2] - The ChiNext index, which tracks 100 large-cap stocks in emerging industries, has a rolling P/E ratio of 42.9 times [2] - The STAR Market 50 index, focusing on "hard technology" leaders, has a rolling P/E ratio of 176.6 times [4] - The Hang Seng China Enterprises index, covering 50 large-cap stocks listed in Hong Kong, has a rolling P/E ratio of 10.9 times [4]