Sou Hu Cai Jing·2025-07-15 11:27Group 1 - The A-share market showed mixed performance with the ChiNext index leading the gains, while the Shanghai Composite Index experienced fluctuations, closing slightly down [2] - The total trading volume in the market reached 1.61 trillion, an increase of 153.3 billion compared to the previous trading day, indicating heightened market activity [2] - The main market focus was on artificial intelligence (AI) stocks, with significant gains in AI hardware and application stocks, while over 4,000 stocks declined overall [2][3] Group 2 - The ChiNext index's strength was attributed to the leading CPO company "Yizhongtian," which, along with two other companies, had a combined market capitalization of 400 billion, with an average increase of over 10% [3] - The market sentiment was notably impacted by the performance of "Huayin Power," which opened with a significant drop, affecting other leading stocks [3] - AI-related sectors, particularly "optical packaging" and "NVIDIA concepts," showed strong performance, driven by positive news from NVIDIA [3]