创业板指早盘承压跌逾1%，创业板ETF（159915）半日净申购超1.5亿份

Core Points - The article discusses the performance and characteristics of various ETFs tracking the ChiNext Index, ChiNext Mid 200 Index, and ChiNext Growth Index, highlighting their sector compositions and valuation metrics [2]. Group 1: ChiNext ETF - The ChiNext Index consists of 100 stocks with large market capitalization and good liquidity, primarily from emerging industries, with over 60% of the index represented by the power equipment, communication, and electronics sectors [2]. - As of the midday close, the ChiNext Index experienced a decline of -1.6%, with a rolling price-to-earnings (P/E) ratio of 40.5 times [2]. Group 2: ChiNext 200 ETF - The ChiNext 200 Index includes 200 stocks with medium market capitalization and good liquidity, reflecting the overall performance of mid-cap companies in the ChiNext market, with the information technology sector accounting for over 40% [2]. - The index also saw a decline of -1.6% as of the midday close, with a rolling P/E ratio of 110.0 times [2]. Group 3: ChiNext Growth ETF - The ChiNext Growth Index is composed of 50 stocks characterized by growth style, high performance growth, and good liquidity, with nearly 80% of the index represented by the communication, power equipment, electronics, non-bank financials, and pharmaceutical sectors [2]. - This index recorded a decline of -1.9% as of the midday close, with a rolling P/E ratio of 39.7 times [2].