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Micron Soars on Strong Earnings, Alphabet Rises on AI Model Launch in After-Hours Trading

Summary
Micron Technology's stock jumped on a robust earnings report and bullish forecast driven by AI demand, while Alphabet gained after unveiling its next-generation AI model. Constellation Energy and Nu Holdings also saw significant after-hours moves.
Several major companies saw their shares move significantly in after-hours trading, driven by key announcements ranging from blockbuster earnings to strategic AI developments and corporate clarifications.
Micron Surges on Blockbuster Earnings and AI-Fueled Outlook
Micron Technology (MU) shares climbed 2% in late trading after the memory chipmaker announced a strong fiscal fourth-quarter earnings report and provided a significantly higher-than-expected forecast for the first quarter of fiscal 2027. The company's performance was fueled by what it described as unprecedented demand for its High Bandwidth Memory (HBM) modules, which are critical components in AI data centers.
Key figures from the report include:
- Q4 Adjusted EPS: $33.42, beating consensus estimates by $2.26.
- Q4 Revenue: $54.23 billion, surpassing the expected $50.45 billion.
- Q1 2027 Guidance: Projecting revenue between $60.0 billion and $63.0 billion and EPS in the range of $37.15 to $39.15.
AI and Energy Deals Drive Gains
AdAlphabet (GOOGL) rose 2% after the market close following the unveiling of Gemini 4 Argon, its new flagship artificial intelligence model. The announcement boosted investor confidence in the company's competitive position in the AI sector, particularly regarding the deployment of its proprietary models across Google Cloud and enterprise services.
In the energy sector, Constellation Energy (CEG) saw its stock increase by 3%. The company announced a major long-term agreement with Amazon to expand its Calvert Cliffs Clean Energy Center in Maryland. The deal involves over $3 billion in infrastructure investments to add approximately 190 megawatts of new nuclear generating capacity, which will help power Amazon Web Services (AWS) data centers.
Nu Holdings Rallies After Denying Merger Speculation
Shares of Nu Holdings Ltd. (NU) gained 6% after the company issued an official statement to deny media speculation about a potential merger or transaction with the UK-based digital bank Monzo. The definitive denial eased investor concerns about potential near-term capital dilution and the regulatory complexities that could arise from a large cross-border deal.
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