Xuan Gu Bao·2025-12-03 08:32Market Overview - The market experienced fluctuations with the ChiNext Index dropping over 1% and a total transaction volume of 1.68 trillion [1] - The superhard materials sector showed resilience, with Huanghe Xuanfeng hitting the daily limit and Sifangda rising over 10% [1] - The coal sector saw collective gains, with companies like Dayou Energy and Antai Group reaching the daily limit [1] - The flu prevention concept was active, with Yisheng Pharmaceutical hitting the daily limit and Yue Wannianqing rising over 10% [1] - Overall, more stocks declined than rose, with over 3,800 stocks in the Shanghai, Shenzhen, and Beijing markets in the red [1] Hot Topics Cultivated Diamonds - The cultivated diamond sector surged, with Huanghe Xuanfeng and Guoji Heavy Industry hitting the daily limit, and Sifangda increasing by 15% [4] - The demand for diamond as a heat dissipation material is expected to grow significantly due to advancements in semiconductor technology [5] - The diamond heat dissipation market is projected to expand from $0.37 million in 2025 to $15.2 billion by 2030, indicating explosive growth [6] Coal Sector - The coal sector performed well, with Antai Group achieving two consecutive daily limits and companies like Huitian Thermal Power and New Dazhou A also hitting the daily limit [7] - A cold wave affecting central and eastern China has led to significant temperature drops, boosting energy procurement demand [7] - Analysts expect coal prices to maintain upward momentum due to stricter safety regulations and increased demand during the winter heating season [8] Pharmaceutical Sector - The pharmaceutical sector was active again, with Haiwang Biological achieving six consecutive daily limits and companies like Ruikang Pharmaceutical and Yisheng Pharmaceutical hitting the daily limit [9] - The high transmissibility of the flu virus has created a surge in demand for antiviral medications and related products [10] - Retail pharmacies are expected to benefit from increased demand for protective products such as masks and disinfectants [10]