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Super Investors Quietly Rotate Portfolios Toward AI-Linked Growth Leaders
Some very successful investors own many of the same large companies.
Microsoft was the stock owned by the most of these investors.
Alphabet, Amazon, Meta Platforms, Visa and other companies were also popular.
Some investors bought more shares of Alphabet, Amazon, Meta Platforms and Visa.
Other investors sold part of their holdings in Microsoft, Mastercard, TSMC and Apple.
Many of the companies are benefiting from artificial intelligence or cloud-computing demand.
For example, Alphabet’s cloud business and Amazon’s AWS business grew quickly.
Investors are watching to see whether spending on artificial intelligence produces enough profits.
The data shows changing preferences rather than everyone abandoning big technology companies.
Dataroma’s June 30, 2026 data shows Microsoft was held by the most super investors, followed by Alphabet and Alphabet Class C.
Amazon, Meta Platforms, Visa, Berkshire Hathaway Class B, TSMC, Mastercard and Apple also ranked among the 10 most widely held stocks.
Investors increased positions in companies such as Alphabet, Amazon, Meta Platforms and Visa, while some reduced holdings in Microsoft, Mastercard, TSMC and Apple.
Cloud computing and artificial-intelligence demand supported growth at Alphabet, Amazon, Meta Platforms and TSMC.
The data shows portfolio rotation within major technology and financial companies, but does not necessarily indicate broad investor movement away from large technology stocks.
- Who
- The super investors tracked by Dataroma, including fund managers and investment firms.
- What
- The investors’ holdings show a rotation among widely owned technology, payments and financial stocks.
- Where
- The companies and investors are based across global markets; the article does not identify one event location.
- When
- The holdings were reported as of June 30, 2026; some developments occurred later in the year.
- Why
- Investors appear to be favoring companies showing financial benefits from artificial intelligence and cloud-computing demand, while adjusting other positions.
AI-Linked Growth Opportunities
Valuation and Execution Risks
Portfolio rotation
AI-Linked Growth Opportunities
The increased holdings in Alphabet, Amazon, Meta Platforms and Visa suggest that some investors are moving toward companies already showing revenue, advertising or payments benefits from artificial intelligence.
Valuation and Execution Risks
The reductions in some holdings, including Microsoft, Mastercard, TSMC and Apple, show that investors are selectively adjusting exposure rather than uniformly buying large technology companies.
Artificial-intelligence investment
AI-Linked Growth Opportunities
Strong cloud demand, AI-supported advertising and rising demand for advanced chips are supporting growth at Alphabet, Amazon, Meta Platforms and TSMC.
Valuation and Execution Risks
The article notes that investors are questioning whether the large sums spent on AI infrastructure will eventually generate enough profit to justify the investment.
Company-specific risks
AI-Linked Growth Opportunities
Berkshire Hathaway’s Alphabet investment and continued ownership of major technology stocks indicate ongoing confidence in established businesses with long-term growth potential.
Valuation and Execution Risks
Meta faces an approximately $18 billion settlement over child-safety claims, Visa plans workforce reductions, and Apple’s future growth depends partly on new products and revenue sources.
Key facts
- Data source
- Dataroma data based on 13F filings as of June 30, 2026.
- Most widely held stock
- Microsoft, held by 37 major investors.
- Second-ranked holding
- Alphabet, held by 36 major investors; Alphabet Class C was held by 34.
- Largest combined portfolio weighting
- Amazon represented approximately 2.92% of the tracked investors’ combined portfolios.
- Cloud growth
- Google Cloud revenue increased 82% year over year in the latest quarter, while Azure grew 39%.
- Berkshire cash
- Berkshire Hathaway was reported to hold $397.4 billion in cash.
- Visa workforce plan
- Visa announced plans to cut around 7% of its workforce through an AI-driven efficiency program.
Sources
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