A股午评：沪指跌0.68%，煤炭、钢铁等周期股集体调整，AI走强！超3400股下跌，成交1.15万亿放量556亿；机构解读

Market Overview - The market showed mixed performance with the Shanghai Composite Index and Shenzhen Component Index both declining, while the ChiNext Index saw a slight increase [2] - As of the midday close, the Shanghai Composite Index was at 3591.26 points, down 0.68%, the Shenzhen Component Index at 11152.77 points, down 0.45%, and the ChiNext Index at 2377.84 points, up 0.43% [2] - Overall, there were more declining stocks than advancing ones, with over 3400 stocks falling [2] Sector Performance - The assisted reproduction sector saw significant gains, with stocks like Gongtong Pharmaceutical and Lide Man hitting the daily limit [2][4] - AI computing-related stocks performed strongly, particularly in the liquid cooling server segment, with multiple stocks reaching the daily limit [2][3] - The innovative drug sector also experienced a rise, with Nanjing New Pharmaceutical hitting the daily limit [2] - Conversely, the steel sector faced a downturn, with notable declines in several stocks [2] - Coal stocks were down, led by Antai Group, while the oil and gas extraction sector also weakened [2] AI Applications - AI applications are expanding through various platforms, with over 3.1 billion registered personal users and 159 million API call users [3] Assisted Reproduction - The Chinese government is implementing a nationwide reimbursement policy for assisted reproductive technologies, expected to benefit over 1 million people in 2024 [4] - Additional measures include the inclusion of pain relief during childbirth in reimbursement policies, aimed at reducing the financial burden on pregnant women [4] Game Market - The domestic gaming market achieved record sales of 168 billion yuan in the first half of the year, marking a 14.08% year-on-year increase, with user numbers reaching 679 million [7] Housing Support Policies - Beijing is enhancing support for families with multiple children in housing, including increased loan limits for housing provident funds and priority in public rental housing allocation [8] Institutional Insights - Financial institutions note a recovery in the A-share market, driven by effective policy measures and an increase in new individual investor accounts, indicating growing market confidence [9]