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Core Viewpoint - The technology sector indices have experienced declines this week, with the Sci-Tech Innovation Index down by 2.3%, the Sci-Tech 100 Index down by 2.4%, the Sci-Tech 50 Index down by 3.8%, and the Sci-Tech Growth Index down by 3.9%. Despite this, CITIC Securities suggests focusing on sectors with performance elasticity, particularly in AI, new energy, and critical resources [1][3]. Index Performance Summary - The weekly performance of various indices is as follows: - Sci-Tech 50 Index: -3.8% - Sci-Tech 100 Index: -2.4% - Sci-Tech Comprehensive Index: -2.3% - Sci-Tech Growth Index: -3.9% [3] - The rolling price-to-earnings ratios for the indices are: - Sci-Tech 50 Index: 159.6 times - Sci-Tech 100 Index: 214.7 times - Sci-Tech Comprehensive Index: 215.1 times - Sci-Tech Growth Index: 157.2 times [3]. Sector Composition - The Sci-Tech 100 Index consists of 100 stocks from medium-sized companies with good liquidity, focusing on small and medium-sized tech enterprises, with over 80% of its composition in the electronics, pharmaceutical, and computer sectors [5]. - The Sci-Tech Comprehensive Index covers all market securities, focusing on core industries such as artificial intelligence, semiconductors, new energy, and innovative pharmaceuticals, encompassing all 17 primary industries listed on the Sci-Tech board [5]. - The Sci-Tech Growth Index includes 50 stocks with high growth rates in revenue and net profit, with over 95% of its composition in the electronics, power equipment, pharmaceutical, and automotive sectors [5].