Sou Hu Cai Jing·2025-09-15 05:00Group 1 - Integrated circuit concept stocks showed strong performance in the morning session, with Shengbang Co. hitting a 20% limit up, Jing Sheng Machinery rising over 11%, and CATL increasing nearly 10% [1] - The ChiNext Index rose by 2.1% at midday, while the Growth Index increased by 1.0%, and the ChiNext Mid-cap 200 Index saw a slight rise of 0.1% [1] - The ChiNext ETF (159915) recorded a trading volume of nearly 4 billion yuan at midday [1] Group 2 - The ChiNext Index tracks 100 stocks with large market capitalization and good liquidity, with a high proportion of strategic emerging industries, including electric equipment, pharmaceuticals, and electronics, which together account for over 55% [3] - The ChiNext 200 ETF managed by E Fund tracks the ChiNext Mid-cap 200 Index, which consists of 200 stocks with medium market capitalization and good liquidity [3]