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Market Overview - The market experienced fluctuations today, with the Shanghai Composite Index opening high but closing down by 0.4% [1] - The Hainan and banking sectors showed the highest gains, while beauty care, photovoltaic equipment, and food processing sectors faced the largest declines [1] Index Performance - The CSI 500 Index fell by 0.7%, the CSI 300 Index decreased by 0.5%, the ChiNext Index dropped by 1.1%, and the STAR Market 50 Index declined by 1.2% [1] - The Hang Seng China Enterprises Index saw a slight decrease of 0.1% [1] ETF Tracking - The CSI 300 ETF and the CSI 500 ETF both tracked their respective indices, with the CSI 300 Index down by 0.5% and a rolling P/E ratio of 14.2 times [3] - The CSI 500 Index decreased by 0.7% with a rolling P/E ratio of 16.6 times [3] - The ChiNext ETF, which tracks the ChiNext Index, fell by 1.1% [4] - The STAR Market 50 ETF, tracking the STAR Market 50 Index, has a rolling P/E ratio of 39.7 times [4] - The Hang Seng China Enterprises ETF, which tracks the Hang Seng China Enterprises Index, decreased by 0.1% with a rolling P/E ratio of 10.5 times [5]