US Tech Giants’ AI Bond Boom Raises Euro Zone Borrowing Risks 
Tesla Cybercab Launch Puts Robotaxi Ambitions in Focus 
South Korea, US Discuss Chip Investments Amid Tariff Plans 
Nvidia Eyes $2.5 Billion Investment in Thinking Machines Lab 
ByteDance Secures $29.6 Billion Loan to Boost AI Investment 
SpaceX Mobile Network Could Cost Up to $130 Billion, Bernstein Says 
Volkswagen Approves 50,000 More Job Cuts in Major Restructuring 
Spire Healthcare Shares Jump on £1.03 Billion Takeover Deal 
OpenAI Launches GPT-6 Astra With Advanced AI Agent Capabilities 
Adobe Names Anil Chakravarthy CEO as AI Push Accelerates 
MongoDB Stock Sinks 14% as Atlas Growth Misses Expectations 
Nvidia Pauses AI Cloud Financing Deals Amid Antitrust Concerns 
Japan, US Target AI and Chips in $550 Billion Investment Push 
Pinterest Stock Falls as CFO Julia Brau Donnelly Resigns 
Lenovo Shares Fall After Dropbox Security Breach Exposes ID Vulnerability 
Milei Threatens Falkland Oil Firms With Sanctions 
Xiaomi Shares Jump on Europe EV Expansion Plan 
Add as a preferred source on Google
Major hedge funds including Tiger Global Management and Adage Capital Partners reduced their exposure to leading AI stocks such as Nvidia, Amazon, and Microsoft in the fourth quarter of 2025, according to newly released U.S. Securities and Exchange Commission 13-F filings. The disclosures highlight growing investor caution around the “Magnificent 7” tech giants amid concerns that elevated valuations and aggressive AI spending may not deliver expected returns.
Tiger Global trimmed its Microsoft holdings from 6.5 million shares in late September to 5.47 million shares by December 31, though the position still represents approximately $2.6 billion, keeping the hedge fund among Microsoft’s largest shareholders. The firm also cut its Amazon stake by 9.35% to 10 million shares, valued at $2.3 billion, and reduced its Nvidia position, now worth about $2.1 billion.
Other institutional investors made similar portfolio adjustments following the massive rally in AI-related stocks over recent years. Berkshire Hathaway disclosed it sold 4% of its Apple holdings and sharply reduced its Amazon position by 77% during the quarter, although Apple remains its largest investment at $62 billion.
Adage Capital reported modest reductions of 1% to 3% in Microsoft, Alphabet, Amazon, and Nvidia, while increasing its Oracle stake by roughly 19% to 1.87 million shares, valued at $365 million. Meanwhile, SoftBank Group liquidated its Nvidia holdings in October to fund further investments in OpenAI, the creator of ChatGPT. Since SoftBank’s disclosure in November, Nvidia shares have declined around 7%, even as analysts project a 67% year-over-year revenue surge ahead of its February 25 earnings report.
Nvidia’s own 13-F filing revealed a 214.8 million-share stake in Intel as part of a collaboration on PC and data center chips. D.E. Shaw also reduced positions in Nvidia, Micron, and Meta, while adding to Amazon and AMD.
The latest SEC filings suggest institutional investors remain selective in AI stock investments as debate over a potential AI bubble continues to intensify.
