科创板50指数半日涨1.5%，科创板50ETF（588080）等产品成交活跃，机构称新兴科技依然是主线

Group 1 - The Shanghai Stock Exchange Sci-Tech Innovation Board indices showed positive performance, with the Sci-Tech 50 Index up by 1.5%, the Growth Index up by 1.3%, the Comprehensive Index up by 1.2%, and the Sci-Tech 100 Index up by 1.0% as of midday [1] - The trading volume for the Sci-Tech 50 ETF (588080) reached approximately 900 million yuan during the same period [1] - Guotai Junan Securities indicated that the short-term risk outlook is stable, with a weak dollar and overseas interest rate cuts favoring China's monetary easing and the resumption of government bond trading [1] Group 2 - The Sci-Tech 50 Index consists of 50 large-cap stocks from the Sci-Tech Innovation Board, with over 60% of its composition in the semiconductor sector, and a rolling P/E ratio of 176.5 times [3] - The Sci-Tech 100 Index includes 100 medium-cap stocks, focusing on small innovative enterprises, with a rolling P/E ratio of 277.2 times and over 80% of its composition in electronics, biomedicine, and power equipment [3] - The Comprehensive Index covers all market securities on the Sci-Tech Innovation Board, focusing on core industries such as artificial intelligence, semiconductors, and new energy, with a rolling P/E ratio of 260.5 times [3] Group 3 - The Growth Index is composed of 50 stocks with high growth rates in revenue and net profit, primarily in the electronics and biomedicine sectors, with a rolling P/E ratio of 221.3 times [3]