--- title: "U.S. stock night market volatility: Nebius rose 3.02% in after-hours trading, as the expansion of AI infrastructure intertwines with analyst rating downgrades, affecting market sentiment" type: "News" locale: "en" url: "https://longbridge.com/en/news/287138417.md" description: "Nebius rose 3.02% in after-hours trading; Microsoft fell 0.63% in after-hours trading, with a transaction volume of $3.77 million; Oracle fell 0.35% in after-hours trading, with a transaction volume of $2.17 million; ServiceNow fell 0.36% in after-hours trading, with a transaction volume of $2.05 million" datetime: "2026-05-21T01:16:48.000Z" locales: - [zh-CN](https://longbridge.com/zh-CN/news/287138417.md) - [en](https://longbridge.com/en/news/287138417.md) - [zh-HK](https://longbridge.com/zh-HK/news/287138417.md) --- # U.S. stock night market volatility: Nebius rose 3.02% in after-hours trading, as the expansion of AI infrastructure intertwines with analyst rating downgrades, affecting market sentiment **U.S. Stock Night Market Movements** Nebius rose 3.02% in the night market. Based on recent key news: 1. On May 18, Nebius continued to expand its investment in AI infrastructure, actively purchasing GPU servers and related equipment, driving up its stock price. Nebius was originally spun off from the Russian search engine Yandex's AI and cloud business and has been actively transforming into an AI infrastructure supplier, continuously expanding its GPU data centers. The market believes that with the explosive demand for global AI computing power, Nebius is becoming a new driving force for the growth of the server supply chain. Source: Zhitong Finance 2. On May 19, D.A. Davidson analyst Gil Luria downgraded Nebius to neutral, believing it may need to take a breather in the short term. The analyst pointed out that Nebius's stock performance has significantly outperformed the market, but its premium valuation may limit its upside potential in the short term. Source: Wall Street Insight 3. On May 20, Nebius partnered with Bloom Energy to integrate Bloom's fuel cell technology into Nebius's AI infrastructure expansion. This move will enhance Nebius's computing capabilities and further drive up its stock price. Source: Zhitong Finance. The demand for AI servers continues to heat up, driving up related stock prices. **Stocks with High Trading Volume in the Industry** Microsoft fell 0.63% in the night market. Based on recent key news: 1. On May 18, the Gates Foundation Trust sold its last stake in Microsoft, valued at approximately $3.2 billion, symbolizing the official end of its shareholding relationship with Microsoft. This sale may affect market confidence in Microsoft, leading to stock price fluctuations. 2. On May 18, Pershing Square Capital Management, led by Ackman, announced the establishment of a new position in Microsoft, believing that Microsoft's valuation is attractive. This move may have a positive impact on Microsoft's stock price, attracting investor attention. 3. On May 19, Microsoft plans to increase the price of GitHub Copilot, which may lead some customers to turn to competing tools. This news may negatively impact Microsoft's market share and stock price. Competition in the AI field is intensifying, increasing market volatility risks. Oracle fell 0.35% in the night market. Based on recent key news: 1. On May 20, international energy markets saw a drop in oil prices after the Iranian Revolutionary Guard announced that 26 ships were allowed to pass through the Strait of Hormuz, with Brent crude prices falling to $109 per barrel, indicating a relief in supply concerns. This news had a positive impact on market sentiment, boosting demand for tech stocks, leading to a decline in Oracle's stock price. 2. On May 20, analysts pointed out that Oracle's large-scale procurement commitments indicate that market demand is no longer just for technology demonstrations but is beginning to translate into actual orders and capital expenditures. Especially as major cloud operators are accelerating the expansion of AI data centers, the scale of investment in AI infrastructure continues to rise On May 20, Morgan Stanley pointed out that as the demand for AI computing power surges, the supply gap for ABF substrates will widen to 22%, a trend that will further drive up the prices of related materials, highlighting the challenges faced by the semiconductor supply chain. The rising demand for tech stocks and falling oil prices are affecting market sentiment. ServiceNow fell 0.36% in after-hours trading. Based on recent key news: 1. On May 18, Bank of America Securities analyst Tal Liani initiated coverage of ServiceNow with a "Buy" rating and a target price of $130, causing the stock price to rise by 5%. The analyst noted that ServiceNow's deep integration into enterprise workflows is a key advantage, and it is expected to benefit from the widespread deployment of AI solutions. Source: Investing.com 2. On May 19, ServiceNow's stock price rose by 8.8%, reaching a new high since April. The company expects to maintain a gross margin of over 80% and achieve significant growth in its AI assistant product, Now Assist. Source: MoneyDJ News 3. On May 20, software stock ETFs rebounded over 20% from April's lows, with the market believing that the worst moment for software stocks has passed, leading to renewed capital inflow. Several software companies, including ServiceNow, performed strongly. 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