Key Takeaways
- • David Tepper's Appaloosa Management dramatically increased positions in Alphabet, Micron Technology, and Meta Platforms during Q1 2026, signaling an "all-in" thesis on AI infrastructure investments.
- • Tepper added 1 million shares of Micron during Q4 2025 and made a $285 million bet on the semiconductor company, doubling down on AI memory demand as the stock surged 200% in holdings value.
- • Alphabet holdings increased 29% to nearly 1.8 million shares; Alphabet is guiding $175B–$185B in 2026 CapEx almost entirely focused on AI infrastructure, with Google Cloud growing 48% year-over-year to $17.7 billion in Q4 2025.
- • Micron beat Q1 2026 revenue estimates by $410 million and delivered EPS of $4.78 versus $4.07 consensus, reflecting strong demand for AI-related memory chips.
- • Tepper simultaneously reduced positions in Amazon and Alibaba, reallocating capital away from consumer-facing e-commerce toward AI infrastructure beneficiaries—a strategic shift that reflects confidence in the near-term AI capex cycle.
Summary
David Tepper's latest 13F filing for Q1 2026 reveals one of the hedge fund world's most closely watched investors executing a concentrated bet on artificial intelligence infrastructure. Appaloosa Management, the firm Tepper founded in 1993, increased stakes in Alphabet, Micron Technology, and Meta Platforms while trimming positions in Amazon and Alibaba Group—a portfolio rotation that underscores his conviction in the near-term AI capex cycle and semiconductor supply requirements.
Tepper's Micron bet represents the most aggressive new position. During Q4 2025, Appaloosa added 1 million shares of Micron Technology, establishing it as one of his largest holdings at 9.48% of the portfolio. The $285 million investment reflects confidence in AI memory demand, with Micron's holdings surging 200% in value. The timing proved prescient: Micron beat Q1 2026 revenue estimates by $410 million and reported earnings per share of $4.78 against a $4.07 consensus estimate, validating Tepper's thesis on AI-driven semiconductor demand.
Alphabet represents Tepper's second major commitment, with Appaloosa increasing holdings from just under 1.4 million shares to nearly 1.8 million—a 29% increase. The move aligns with Alphabet's aggressive AI infrastructure strategy. The company reported Q4 2025 revenue of $113.83 billion and disclosed guidance for $175B–$185B in 2026 capital expenditures "almost entirely focused on AI infrastructure." Google Cloud, a key AI beneficiary, grew 48% year-over-year to $17.7 billion in Q4 2025, demonstrating the commercial traction underlying Tepper's conviction.
The portfolio reallocation away from Amazon and Alibaba—two of the world's largest consumer and e-commerce platforms—signals Tepper's selectivity within technology. Rather than broad tech exposure, his strategy targets companies positioned to benefit directly from the AI infrastructure buildout: semiconductor suppliers, cloud infrastructure operators, and AI platform developers. This disciplined approach reflects Tepper's long-standing reputation for high-conviction, macro-level bets at inflection points, consistent with his contrarian positioning during the 2008 financial crisis.
As of March 31, 2026, Appaloosa's top five holdings are Amazon (15.16%), Micron Technology (9.48%), Alphabet (8.38%), Uber Technologies (7.68%), and Taiwan Semiconductor (7.56%)—a portfolio composition heavily weighted toward semiconductor and AI infrastructure plays. Tepper's 13F remains one of the most widely followed in the hedge fund industry, and this quarter's filings underscore his confidence that AI infrastructure capex will sustain semiconductor demand through 2026 and beyond.
Tepper's Micron bet represents the most aggressive new position. During Q4 2025, Appaloosa added 1 million shares of Micron Technology, establishing it as one of his largest holdings at 9.48% of the portfolio. The $285 million investment reflects confidence in AI memory demand, with Micron's holdings surging 200% in value. The timing proved prescient: Micron beat Q1 2026 revenue estimates by $410 million and reported earnings per share of $4.78 against a $4.07 consensus estimate, validating Tepper's thesis on AI-driven semiconductor demand.
Alphabet represents Tepper's second major commitment, with Appaloosa increasing holdings from just under 1.4 million shares to nearly 1.8 million—a 29% increase. The move aligns with Alphabet's aggressive AI infrastructure strategy. The company reported Q4 2025 revenue of $113.83 billion and disclosed guidance for $175B–$185B in 2026 capital expenditures "almost entirely focused on AI infrastructure." Google Cloud, a key AI beneficiary, grew 48% year-over-year to $17.7 billion in Q4 2025, demonstrating the commercial traction underlying Tepper's conviction.
The portfolio reallocation away from Amazon and Alibaba—two of the world's largest consumer and e-commerce platforms—signals Tepper's selectivity within technology. Rather than broad tech exposure, his strategy targets companies positioned to benefit directly from the AI infrastructure buildout: semiconductor suppliers, cloud infrastructure operators, and AI platform developers. This disciplined approach reflects Tepper's long-standing reputation for high-conviction, macro-level bets at inflection points, consistent with his contrarian positioning during the 2008 financial crisis.
As of March 31, 2026, Appaloosa's top five holdings are Amazon (15.16%), Micron Technology (9.48%), Alphabet (8.38%), Uber Technologies (7.68%), and Taiwan Semiconductor (7.56%)—a portfolio composition heavily weighted toward semiconductor and AI infrastructure plays. Tepper's 13F remains one of the most widely followed in the hedge fund industry, and this quarter's filings underscore his confidence that AI infrastructure capex will sustain semiconductor demand through 2026 and beyond.
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