美股存储全线走高，西部数据、希捷、闪迪大涨创新高，美光踏入“5000亿美元俱乐部”！

Core Viewpoint - The storage and data storage sector is experiencing significant growth driven by AI demand, with Micron Technology's market capitalization surpassing $500 billion for the first time, placing it among the top 16 most valuable companies in the S&P 500 [3][5]. Group 1: Market Performance - Micron Technology closed at $461.69, achieving a market cap of $519.64 billion, marking its first close above the $500 billion threshold [5]. - The stock has rapidly increased, having only recently surpassed $400 billion in market cap just two months prior, reflecting high market optimism regarding AI storage demand [5]. - Other companies in the sector, such as Western Digital and Seagate, also saw significant stock price increases, with Western Digital rising over 9% and Seagate over 5% [3]. Group 2: Catalysts for Growth - The announcement of Micron's HBM4 high-bandwidth memory chip entering mass production has alleviated market concerns about its role as a supplier for NVIDIA's next-generation AI platform [3][5]. - SK Hynix's chairman indicated that the global chip wafer shortage is expected to last until 2030, with a potential shortfall exceeding 20%, which has further boosted market sentiment [3][7]. - Analysts predict that the supply-demand imbalance in the storage market will provide ongoing pricing power for companies like Micron [6]. Group 3: Analyst Insights - Deutsche Bank analysts forecast that the DRAM market supply tightness will persist until 2027, particularly for HBM products, which require significantly more silicon than traditional DRAM [6]. - Rosenblatt analysts expect the current upcycle to last at least until Q4 of the 2026 fiscal year, as new wafer production capacity will not be available until mid-next year [6]. - RBC analysts believe that even if demand in the PC and smartphone markets declines, it will be largely offset by AI and data center demand, which currently accounts for over half of the DRAM market revenue [6]. Group 4: Company Developments - SK Hynix is evaluating the possibility of issuing American Depositary Receipts (ADRs) to broaden its global investor base and is expected to announce a new plan to stabilize DRAM prices [8]. - Micron's acquisition of the Taiwan-based P5 facility is expected to enhance its cleanroom capacity for HBM and DRAM production [10]. Group 5: Market Sentiment and Expectations - The storage sector has shown resilience against previous warnings of a market "cooling," with significant stock price increases contradicting Morgan Stanley's predictions of a downturn [9]. - Micron is set to release its quarterly earnings report, with analysts expecting a revenue of $19.8 billion for Q2 of fiscal 2026, a year-over-year increase of approximately 145% [10].