--- title: "U.S. stock night market fluctuations: Semtech rose 3.27% in the night market, with clear capital flow" type: "News" locale: "en" url: "https://longbridge.com/en/news/293287068.md" description: "Semtech rose 3.27% in the night session; Micron Technology rose 4.28% in the night session, with a transaction volume of USD 393 million; SK Hynix rose 4.91% in the night session, with a transaction volume of USD 197 million; AMD rose 2.58% in the night session, with a transaction volume of USD 44.62 million" datetime: "2026-07-21T04:36:36.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/293287068.md) - [en](https://longbridge.com/en/news/293287068.md) - [zh-HK](https://longbridge.com/zh-HK/news/293287068.md) --- # U.S. stock night market fluctuations: Semtech rose 3.27% in the night market, with clear capital flow **U.S. Stock Night Market Movements** Semtech rose 3.27% in the night market. There have been no significant news recently; trading is active, and capital flows are evident. Considering the sector and industry trends, the stock shows significant volatility, and the specific reasons need further observation. no\_news **Stocks with High Trading Volume in the Industry** Micron Technology rose 4.28% in the night market. Based on recent key news: 1. On July 21, SK Group Chairman Choi Tae-won stated that the prices of memory chips are abnormally high, which the market interprets as a warning of short-term overheating risks, boosting sentiment in the semiconductor sector and leading to a rebound in Micron's stock price. Source: Zhitong Finance 2. On July 20, JP Morgan strategists believed that the recent sell-off of AI stocks creates opportunities for a rebound in the semiconductor sector, expecting that the supply-demand tension for DRAM and NAND will continue until 2028. Source: Wall Street Insight 3. On July 18, analysts pointed out that Micron Technology has a low price-to-earnings ratio, and market expectations for profits are at a peak, with the stock price decline reflecting the market's risk perception of future profit declines. Source: BenzingaAI Demand drives supply-demand tension in the memory market. SK Hynix rose 4.91% in the night market. Based on recent news, 1. On July 14, SK Hynix completed the largest issuance of American Depositary Receipts (ADR) by a non-U.S. company in history, raising $26.5 billion for HBM capacity expansion, leading to a 27% surge in stock price. Source: Wall Street Insight 2. On July 20, SK Hynix Chairman Choi Tae-won stated that current memory chip prices are abnormally high and need to normalize to avoid market contraction, which the market interprets as a sober warning of short-term overheating risks in the industry, boosting overall sentiment in the semiconductor sector. Source: CaiLianShe 3. On July 19, the South Korean stock market became a core barometer of global AI industry sentiment, with SK Hynix's stock price fluctuations directly linked to global semiconductor market sentiment. Source: Bloomberg Global technology industry resources are accelerating towards AI core hardware. AMD rose 2.58% in the night market. Based on recent news, 1. On July 20, AMD announced a significant expansion of its strategic partnership with Microsoft, with Microsoft's Azure cloud platform set to deploy AMD's Helios rack-level AI system for cutting-edge model inference and Azure AI services. This news boosted AMD's stock price by about 2%. 2. On July 20, UBS released a research report indicating that demand for AI servers continues to heat up, and it is expected that shipments of AMD's next-generation Helios cabinets will increase significantly, further boosting the company's revenue expectations. 3. On July 20, Barclays raised AMD's target price from $500 to $665, believing that its CPU upside potential is the least priced among major chip stocks. The chip sector is rebounding overall, and market sentiment is positive ### Related Stocks - [SMTC.US](https://longbridge.com/en/quote/SMTC.US.md) - [MU.US](https://longbridge.com/en/quote/MU.US.md) - [SKHY.US](https://longbridge.com/en/quote/SKHY.US.md) - [AMD.US](https://longbridge.com/en/quote/AMD.US.md) ## Related News & Research - [Is Semtech (SMTC) Undervalued As AI Data Center Demand Meets Margin Risks?](https://longbridge.com/en/news/294103880.md) - [10:38 ETDid Semtech Corporation Insiders Breach their Fiduciary Duties to Shareholders?](https://longbridge.com/en/news/294224405.md) - [CORZ Stock Alert: Core Scientific Strikes AI Infrastructure Deal With AMD](https://longbridge.com/en/news/294105050.md) - [AMD stock sets up for this bearish trade as AI bubble trouble looms](https://longbridge.com/en/news/294079975.md) - [Meet the Gen Z AI whiz at the center of a hedge fund meltdown](https://longbridge.com/en/news/294425537.md)