存储“超级牛市”仍未结束？闪迪被香橼做空后重回前高、韩国存储双雄股价创历史新高

Core Viewpoint - Citron Research has initiated a short position on SanDisk, arguing that the current supply tightness in the storage chip industry is temporary and that once major manufacturers restore yields and release capacity, the supply-demand dynamics could reverse dramatically [1][2]. Group 1: Citron Research's Short Report - The report claims that SanDisk's current valuation is significantly overestimated and that the market fundamentally misjudges its growth potential [1]. - Citron compares SanDisk to "NVIDIA-like" growth stocks, emphasizing that its products are essentially highly commoditized rather than possessing a long-term competitive moat [1]. - The report highlights the cyclical nature of the storage industry, stating that NAND flash memory, SanDisk's main product, is a commodity whose price and profitability are primarily driven by supply-demand cycles rather than structural innovation [1][2]. Group 2: Historical Context and Market Dynamics - Citron cites historical examples where high margins, currently around 50%, are typical characteristics of market peaks rather than sustainable states, with past instances showing price drops of approximately 50% and 70% following periods of high demand [2]. - The report emphasizes that unlike NVIDIA's GPU ecosystem, NAND flash products are highly interchangeable, with competition primarily based on cost and scale rather than technological barriers [2]. - Citron notes that SanDisk's former parent company, Western Digital, recently sold a significant portion of its SanDisk shares at a price about 25% lower than the current market price, indicating an internal judgment of a market peak [2]. Group 3: Market Reaction and Stock Performance - Following the release of Citron's report, SanDisk's stock price fell from $666.49 to a low of $612.92, reflecting an 8% drop, before closing at $638.52, down 4.20% [3]. - The trading volume surged to over 30.4 million shares, indicating a rapid shift in market sentiment [3]. - However, just two trading days later, SanDisk's stock price rebounded to around $665, nearly returning to pre-report levels [3]. Group 4: Broader Industry Trends - Concurrently, South Korean storage giants Samsung and SK Hynix reached historical highs in their stock prices, with Samsung's market capitalization surpassing $1 trillion [4]. - Citigroup has raised its 2026 price forecasts for DRAM and NAND, indicating a "runaway increase" in the market, with demand driven by AI infrastructure investments outpacing supply [4]. - For Chinese investors, the China-Korea semiconductor ETF has emerged as a key investment vehicle, reflecting strong performance with a closing increase of 9.64% [4].