DRAM 价格半年暴涨 47.7%！半导体材料ETF（562590）盘中回调蓄势

Group 1 - The semiconductor materials ETF (562590) closely tracks the CSI Semiconductor Materials and Equipment Theme Index, which includes 40 listed companies deeply involved in the semiconductor materials and equipment sectors [2] - The index comprises leading companies that have shown significant performance in the domestic substitution process, such as North Huachuang and Zhongwei Company in the etching equipment sector, and Hushi Industry and Nanda Optoelectronics in key materials [2] - The sample selection focuses on core industry tracks, reflecting the trend of self-reliance and upgrading in the semiconductor industry chain, and represents the overall performance of listed companies in semiconductor materials and equipment [2] Group 2 - As of July 2, 2025, the CSI Semiconductor Materials and Equipment Theme Index (931743) fell by 1.99%, with notable declines in stocks such as Zhongke Feimeng down 5.84% and Zhongjing Technology down 4.79% [1] - The NAND Flash market price index increased by 9.2% and the DRAM market price index surged by 47.7% from the beginning of 2025 to the present, indicating a significant market shift [1] - The traditional DRAM products experienced a dramatic reversal from oversupply in the second half of 2024 to a shortage in the first half of 2025, impacting both server and consumer terminal markets [1]