【存储芯片迎涨价潮，芯片ETF（159995.SZ）成分股表现低迷，兆易创新跌6%】

Group 1 - A-shares experienced a collective decline on November 21, with the Shanghai Composite Index dropping by 0.82% during intraday trading, while sectors such as media, agriculture, and banking showed gains [1] - The chip sector remained sluggish, with the chip ETF (159995.SZ) falling by 2.72%, and individual stocks like Zhaoyi Innovation and Beijing Junzheng declining by 6.74% and 6.22% respectively [1] - Some individual stocks in the chip sector, such as Wentai Technology and Ruixin Micro, saw slight increases of 0.89% and 0.67% [1] Group 2 - The storage industry is experiencing price increases driven by growing demand for AI servers, with DDR4 product prices rising due to a supply-demand gap, and DDR5 prices increasing by 102.6% in October [3] - DDR3 product prices also rose by 40.4% in October, attributed to production capacity shifting towards DDR3, leading to reduced supply [3] - The NAND Flash products benefited from the expanding storage capacity demand from AI servers, with significant price increases noted since July and August [3] - According to招商证券, the current storage industry cycle is primarily driven by the explosive demand for storage in the AI era, with expectations of continued price increases and improving performance for domestic module and chip manufacturers in Q4 2025 [3]