AGRICULTURAL BANK OF CHINA(SH:601288) Xuan Gu Bao·2025-10-20 10:34Market Overview - The market opened higher but experienced a slight decline throughout the day, with the Shanghai Composite Index, Shenzhen Component Index, and ChiNext Index closing up by 0.63%, 0.98%, and 1.98% respectively, with over 4,000 stocks rising and more than 1,200 falling [4]. Superhard Materials - The superhard materials sector saw significant gains, with companies like Huifeng Diamond (+29.98%), Sifangda (+19.98%), and Liliang Diamond (+18.71%) reaching their daily limits [5][6]. - The rise in this sector is attributed to the export control of superhard materials, which include synthetic diamonds and cubic boron nitride, crucial for high-end manufacturing and technology [7]. - China's industrial diamond production accounts for 95% of the global market share, bolstered by the demand from the photovoltaic sector [7]. Coal Industry - The coal sector experienced a strong performance, with companies such as Daya Energy achieving seven consecutive trading limits, and both Liaoning Energy and Zhengzhou Coal Power hitting their daily limits [11]. - The tightening of supply in the coal industry is becoming a key investment theme, with expectations of improved coal prices due to increased demand in the fourth quarter [11]. Banking Sector - The banking sector has seen a rebound, particularly among local banks like Chongqing Bank and Xiamen Bank, while Agricultural Bank of China remains the largest in market capitalization, with a cumulative increase of over 17% in the past two weeks [10]. - Agricultural Bank of China has outperformed Industrial and Commercial Bank of China, marking a significant recovery in its stock performance [10]. Emerging Concepts - The "deep earth economy" concept emerged in the market, with stocks like ShenKai Co. and Petrochemical Machinery hitting their daily limits, indicating a growing interest in this area [3].