科创板系列指数午前反弹，关注科创板50ETF（588080）等产品长期投资价值

Group 1 - The article discusses various ETFs tracking the Sci-Tech Innovation Board indices, highlighting their focus on high-growth sectors such as semiconductors, medical devices, and software development [2][3] - The Sci-Tech 50 ETF tracks the top 50 stocks by market capitalization and liquidity on the Sci-Tech Innovation Board, with over 65% of its composition in semiconductors and nearly 80% in related sectors [2] - The rolling price-to-earnings (P/E) ratio for the Sci-Tech 50 ETF is reported at 160.0 times, indicating a high valuation level since its inception [2] Group 2 - The Sci-Tech 100 ETF focuses on 100 medium-sized stocks with good liquidity, primarily in the electronics, biomedicine, and electrical equipment sectors, which together account for over 80% of the index [2] - The rolling P/E ratio for the Sci-Tech 100 ETF is noted at 187.8 times, reflecting its valuation dynamics [2] - The Sci-Tech Comprehensive Index ETF covers all market securities on the Sci-Tech Innovation Board, focusing on core industries like artificial intelligence and new energy, with a rolling P/E ratio of 206.9 times [2] Group 3 - The Sci-Tech Growth 50 ETF tracks 50 stocks with high growth rates in revenue and net profit, with nearly 75% of its composition in the electronics and biomedicine sectors [3] - The rolling P/E ratio for the Sci-Tech Growth 50 ETF is reported at 192.0 times, indicating its growth-oriented investment strategy [3] - The article mentions that the management fee for these low-fee products is 0.15% per year, and the custody fee is 0.05% per year [3]