Key Takeaways
- • Bill Ackman's Pershing Square deployed $2 billion into Meta Platforms, representing 10% of the hedge fund's total portfolio, with initial purchases at an average price of $625 per share in November 2025.
- • Ackman increased Amazon holdings to 11.76% of Pershing Square's portfolio, betting on accelerating momentum in AWS (which grew 24% year-over-year to $35.58 billion in Q4 2025) and advertising revenue ($21.32 billion, up 23%).
- • The dual tech bets reflect Ackman's conviction in AI infrastructure and digital advertising as undervalued long-term growth drivers, with Meta positioned as a beneficiary of Mark Zuckerberg's pivot toward superintelligence and AI-powered smart glasses.
- • Pershing Square also maintains a major position in Fannie Mae, which Ackman publicly endorsed in late March 2026 as a potential "10X" opportunity, signaling concentrated conviction across tech and financial sectors.
- • Meta's position carries execution risk: Reality Labs has accumulated $83 billion in losses since 2020, and the company is embarking on unprecedented capital expenditure for data centers and AI talent, while Meta stock trades near $670 as of February 2026.
Summary
Billionaire investor Bill Ackman is making concentrated bets across technology and financial sectors through Pershing Square, signaling his highest conviction opportunities in early 2026. The hedge fund committed $2 billion to Meta Platforms in late 2025, representing 10% of Pershing Square's total portfolio. Ackman began accumulating the position in November 2025 at an average purchase price of $625 per share, with Meta shares subsequently trading near $670 by February 2026, generating early gains on the position.
Ackman's Meta thesis centers on Mark Zuckerberg's strategic pivot from metaverse development toward artificial intelligence and superintelligence integration. Rather than pursuing virtual reality as a primary platform, Meta is shifting toward AI-powered smart glasses as the infrastructure for daily superintelligence deployment. This strategic reorientation carries material risks: Meta's Reality Labs division has lost $83 billion cumulatively since 2020, and the company recently cut 1,500 employees—approximately 10% of the Reality Labs workforce—while committing to unprecedented capital expenditure for data center buildout and AI talent acquisition.
Simultaneously, Ackman has increased Pershing Square's Amazon stake to 11.76% of portfolio holdings, reflecting growing conviction in the company's cloud and advertising momentum. Amazon Web Services generated $35.58 billion in Q4 2025 revenue, representing 24% year-over-year growth and the fastest expansion in 13 quarters. The company's advertising business contributed $21.32 billion in revenue, expanding 23% year-over-year, demonstrating diversified growth engines beyond core e-commerce operations. These metrics appear central to Ackman's AI infrastructure thesis.
Beyond technology, Pershing Square maintains significant exposure to Fannie Mae, a position Ackman publicly endorsed in late March 2026 as a potential "10X" opportunity—an unusually bullish characterization that underscores his conviction despite the housing-finance sector's controversial history and regulatory sensitivities. The three holdings—Amazon, Meta, and Fannie Mae—reflect Ackman's belief that the market is materially underestimating long-term value creation in AI infrastructure, digital advertising platforms, and financial services assets, revealing his highest-conviction thesis for asymmetric returns in the current investment environment.
Ackman's Meta thesis centers on Mark Zuckerberg's strategic pivot from metaverse development toward artificial intelligence and superintelligence integration. Rather than pursuing virtual reality as a primary platform, Meta is shifting toward AI-powered smart glasses as the infrastructure for daily superintelligence deployment. This strategic reorientation carries material risks: Meta's Reality Labs division has lost $83 billion cumulatively since 2020, and the company recently cut 1,500 employees—approximately 10% of the Reality Labs workforce—while committing to unprecedented capital expenditure for data center buildout and AI talent acquisition.
Simultaneously, Ackman has increased Pershing Square's Amazon stake to 11.76% of portfolio holdings, reflecting growing conviction in the company's cloud and advertising momentum. Amazon Web Services generated $35.58 billion in Q4 2025 revenue, representing 24% year-over-year growth and the fastest expansion in 13 quarters. The company's advertising business contributed $21.32 billion in revenue, expanding 23% year-over-year, demonstrating diversified growth engines beyond core e-commerce operations. These metrics appear central to Ackman's AI infrastructure thesis.
Beyond technology, Pershing Square maintains significant exposure to Fannie Mae, a position Ackman publicly endorsed in late March 2026 as a potential "10X" opportunity—an unusually bullish characterization that underscores his conviction despite the housing-finance sector's controversial history and regulatory sensitivities. The three holdings—Amazon, Meta, and Fannie Mae—reflect Ackman's belief that the market is materially underestimating long-term value creation in AI infrastructure, digital advertising platforms, and financial services assets, revealing his highest-conviction thesis for asymmetric returns in the current investment environment.
Go deeper than the headline
Research every firm in this story, track the ones that matter and get the daily briefing — free for 7 days.