科创板反弹，科创板50ETF（588080）本周前四个交易日“吸金”超10亿元

Group 1 - The article discusses various ETFs tracking the Sci-Tech Innovation Board indices, highlighting their low fee rates and focus on high-quality stocks in the technology sector [2] - The Sci-Tech Innovation Board 50 ETF tracks the top 50 stocks with significant market capitalization and liquidity, predominantly in the semiconductor sector, which accounts for over 65% of the index [2] - The rolling price-to-earnings (P/E) ratio for the Sci-Tech Innovation Board 50 ETF is reported at 149.8 times, indicating a high valuation relative to earnings [2] Group 2 - The Sci-Tech Innovation Board 100 ETF focuses on 100 medium-cap stocks with good liquidity, primarily in the electronics, biopharmaceuticals, and electrical equipment sectors, which together represent over 80% of the index [2] - The rolling P/E ratio for the Sci-Tech Innovation Board 100 ETF is noted at 210.6 times, reflecting a premium valuation in the market [2] - The Sci-Tech Comprehensive Index ETF covers all market securities on the Sci-Tech Innovation Board, focusing on key industries such as artificial intelligence, semiconductors, and new energy, with a rolling P/E ratio of 204.7 times [2]