U.S. stock night trading fluctuations: AI Cloud 3.1 support, Nebius rose 3.02% in night trading, technical breakthroughs resonate with market sentiment

U.S. Stock Night Market Movements Nebius rose 3.02% in the night market. Based on recent key news: On December 16, Nebius's stock price surged violently during intraday trading, with a significant increase in trading volume. Community traders reported that sentiment for small-cap stocks was stimulated, with clear dominance of funds. The technical aspect showed that the long bullish K-line penetrated the resistance level of $23.4, with a short-term new high squeeze effect appearing. Source: Zhitong Finance On December 17, Nebius launched AI Cloud version 3.1, utilizing NVIDIA's Blackwell Ultra technology to enhance operational capabilities and improve AI training and inference performance. This move doubled the throughput of distributed workloads. Source: Zhitong Finance On December 18, analysts had differing opinions on Nebius's rating; one side believed it had long-term growth potential, while the other considered its business model to be risky, recommending a strong sell. Source: BenzingaAI The industry is highly competitive, with frequent technological updates. Stocks with High Trading Volume in the Industry Oracle rose 7.04% in the night market. Based on recent news, On December 15, after Oracle announced its Q2 fiscal year 2025 earnings report, its stock price fell for three consecutive days, with a cumulative decline of over 16%. Investors expressed concerns about its large-scale AI cloud infrastructure capital expenditures and potential debt risks, leading to a weakening stock price. On December 17, Blue Owl Capital decided to no longer support Oracle's $10 billion data center project in Michigan, exacerbating market concerns about its debt levels and expenditure, causing the stock price to drop nearly 5%. On December 18, Oracle's credit default swaps (CDS) reached a new high since 2009, reflecting heightened market vigilance regarding its debt risks, further undermining investor confidence. The investment risks in AI infrastructure have increased, leading to greater market volatility. Microsoft fell 0.19% in the night market. Based on recent news, On December 16, Microsoft announced plans to invest $80 billion in AI infrastructure in fiscal year 2025. Although this investment demonstrates the company's emphasis on the AI field, investors are cautious about the pace of investment, fearing a slowdown in market demand or being surpassed by competitors, leading to stock price fluctuations. On December 18, Morgan Stanley analyst Keith Weiss stated after meeting with Microsoft executives that the Azure division could bring significant upside potential and gave it an "overweight" rating with a target price of $650. The analyst's optimistic expectations drove a short-term increase in the stock price. On December 19, Microsoft signed agreements with 24 top AI companies to join the "Genesis Project" initiated by the U.S. federal government, aimed at promoting the application of AI technology in scientific exploration and energy projects. This move further solidified Microsoft's leadership position in the AI field and boosted market confidence. Investment in the AI sector is accelerating, with significant fluctuations in market sentiment SentinelOne rose 0.14% in after-hours trading. Based on recent key news: On December 18, SentinelOne director Mark S. Peek reported the acquisition of common stock. This move demonstrates confidence in the company's future development, which may drive the stock price up. According to SEC filings, Peek purchased 40,000 shares at a price of $14.89 per share, totaling $595,600. On December 17, SentinelOne released related content, emphasizing the company's ongoing development in technology and the market. Such announcements typically enhance investor confidence and support the stock price. No other significant news recently. The technology sector has performed strongly lately, with noticeable capital inflows