--- title: "U.S. stock night market fluctuations: AMD rose 3.03% in night trading: Citigroup upgraded its rating, and the acquisition of MEXT boosted confidence" type: "News" locale: "en" url: "https://longbridge.com/en/news/290134772.md" description: "AMD rose 3.03% in after-hours trading; Micron Technology rose 3.48% in after-hours trading, with a transaction volume of USD 245 million; NVIDIA rose 1.01% in after-hours trading, with a transaction volume of USD 4.571 million; Marvell Technology rose 2.77% in after-hours trading, with a transaction volume of USD 4.225 million" datetime: "2026-06-18T03:22:03.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/290134772.md) - [en](https://longbridge.com/en/news/290134772.md) - [zh-HK](https://longbridge.com/zh-HK/news/290134772.md) --- # U.S. stock night market fluctuations: AMD rose 3.03% in night trading: Citigroup upgraded its rating, and the acquisition of MEXT boosted confidence **U.S. Stock Night Market Movements** AMD rose 3.03% in the night market. Based on recent key news: 1. On June 16, AMD announced the acquisition of AI memory optimization company MEXT to address the rising pressure of memory costs. This move will enhance its AI and data center product lineup, causing the stock price to surge nearly 7%. According to Barron’s, MEXT's technology allows flash memory to perform more like DRAM, reducing infrastructure costs and improving AI workload efficiency. 2. On June 16, Citigroup analysts upgraded AMD's stock rating from "Neutral" to "Buy," significantly raising the target price from $460 to $575. Analysts believe the market has underestimated AMD's potential in the GPU market, especially with its collaboration with Meta, which will significantly increase its market share. This news drove AMD's stock price up. 3. On June 16, AMD reached an agreement with Austrian PCB manufacturer AT&S to invest up to €2 billion in Malaysia to expand factory capacity. This move aims to support long-term growth and enhance financial flexibility. According to the Science and Technology Innovation Board Daily, AT&S's stock price surged 36% as a result, while AMD's frequent investments in AI hardware also boosted market confidence. Tech stocks are rebounding, and market confidence is gradually recovering. **Stocks with High Trading Volume in the Industry** Micron Technology rose 3.48% in the night market. Based on recent key news: 1. On June 17, Deutsche Bank and Citigroup raised Micron Technology's target price due to tight DRAM supply and demand, expecting the trend to continue until after 2026. Deutsche Bank raised the target price from $1000 to $1500, and Citigroup raised it to $1200, driving the stock price up. Source: Financial Associated Press 2. On June 15, RBC Capital Markets raised Micron Technology's target price from $525 to $1200 due to strong AI demand and improvements in the storage cycle, pushing the stock price up over 8%. Source: Financial Associated Press 3. On June 16, Aletheia Capital raised Micron Technology's target price to $1600, believing that the value proportion of memory in AI hardware will exceed 70%, showing the market's optimistic attitude towards its prospects. Source: Financial Associated Press. Tech stocks are driven by AI demand, and market confidence is strengthening. NVIDIA rose 1.01% in the night market. Based on recent key news: 1. On June 16, NVIDIA plans to issue bonds to raise at least $20 billion to support AI chip production. This move indicates an increased funding demand for the company in the AI field, pushing the stock price up by 3.5%. Source: Reuters 2. On June 16, NVIDIA's bond issuance attracted $85 billion in subscription demand, showing strong investor interest in the AI cycle, further driving the stock price up. Source: Bloomberg On June 16, NVIDIA CEO Jensen Huang stated that the chip shortage issue will persist, with strong market demand for its products supporting the rise in stock prices. Source: Wedbush Securities Report AI infrastructure investment accelerates, bond market active. Marvell Technology rose 2.77% in after-hours trading. Based on recent key news: 1. On June 17, NVIDIA CEO Jensen Huang stated that Marvell will become the next company to surpass a market value of $1 trillion, driving a significant increase in stock prices. Market analysis pointed out that Marvell needs to achieve 50% annual growth in AI infrastructure to overcome the risk of overvaluation. Source: Zhitong Finance. 2. On June 17, Wall Street was generally optimistic about Marvell's prospects, with 45 out of 50 analysts giving a "buy" rating, indicating confidence in its long-term growth potential. Source: Bloomberg. 3. On June 16, Riley Securities and Barclays raised Marvell's target prices to $345 and $275, respectively, reflecting analysts' optimistic expectations for its future performance. Source: Benzinga AI and the semiconductor industry perform strongly, market optimism ### Related Stocks - [AMD.US](https://longbridge.com/en/quote/AMD.US.md) - [MU.US](https://longbridge.com/en/quote/MU.US.md) - [NVDA.US](https://longbridge.com/en/quote/NVDA.US.md) - [MRVL.US](https://longbridge.com/en/quote/MRVL.US.md) ## Related News & Research - [This AMD development flew under the radar, but its implications for the AI trade could be massive](https://longbridge.com/en/news/290208780.md) - [AMD Stock Is Trending: What's Happening Today?](https://longbridge.com/en/news/290727267.md) - [Why Cathie Wood Is Selling AMD Stock](https://longbridge.com/en/news/289955506.md) - [Direxion Daily AMD Bull 2X ETF declares quarterly distribution of $0.6762](https://longbridge.com/en/news/290596291.md) - [Advanced Micro Devices (AMD) Stock Could Be 15.5% Overvalued As AI Growth Questions Build](https://longbridge.com/en/news/290616592.md)