Billionaire Bill Ackman Invests 45% of His Portfolio in Three AI Stocks

TLDR

Table of Contents

Bill Ackman has 45% of his $13.7 billion fund concentrated in just three tech stocks
Uber Technologies makes up 21% of his portfolio, with ride-sharing market expected to grow from $87.7 billion to $918 billion by 2033
Alphabet accounts for 15.1% through both share classes, with Google Cloud growing 32% annually
Amazon represents 9.3% of holdings, with AWS leading cloud infrastructure at 32% market share
These three companies are positioned to benefit from AI growth and autonomous vehicle technology

Billionaire investor Bill Ackman has made a concentrated bet on artificial intelligence and mobility technology. His hedge fund, Pershing Square Capital Management, has placed nearly half of its $13.7 billion in assets under management into three major tech companies.

The activist investor’s approach differs from traditional diversification strategies. Pershing Square holds just 11 total positions, with three stocks accounting for 45% of all invested assets.

Uber Technologies serves as Ackman’s largest holding at 21% of the portfolio. The ride-sharing giant dominates the U.S. market with a 68% to 76% share since 2017. The company has transformed from an unprofitable startup into a cash-generating business.

The global ride-sharing market presents massive growth potential. Research firm Stratis estimates the market will expand from $87.7 billion in 2025 to over $918 billion by 2033. This represents a 21% compound annual growth rate over eight years.

Uber operates beyond ride-sharing through its Uber Eats delivery platform and freight logistics division. The company benefits from economic expansion cycles that typically last longer than contractions.

Cloud Computing Leadership

Alphabet commands 15.1% of Ackman’s portfolio through both Class A and Class C shares. Google maintains 89% to 93% of worldwide internet search market share for over a decade. This dominance provides exceptional advertising pricing power during economic growth periods.

Google Cloud represents Alphabet’s fastest-growing segment with 32% growth in the recent quarter. The cloud platform generated over $54 billion in annual revenue and operates as the world’s third-largest cloud infrastructure service.

The company integrates generative AI solutions into Google Cloud while allowing clients to build and train large language models. These capabilities help maintain Google Cloud’s accelerated growth trajectory.

Alphabet trades at 22 times forward earnings, making it the cheapest member of the “Magnificent Seven” tech stocks. The valuation appears reasonable given the company’s sustained double-digit growth rate and strong operating cash flow.

E-commerce and Web Services Dominance

Amazon comprises 9.3% of Ackman’s holdings as his third-largest position. While the e-commerce marketplace generates most revenue, Amazon Web Services (AWS) produces the bulk of operating income.

AWS leads global cloud infrastructure with 32% market share, more than triple Google Cloud’s portion. The platform achieved over $123 billion in annual sales run-rate through aggressive AI and machine learning investments.

Amazon applies AI across its retail operations to improve inventory placement, product listings, and delivery routes. The company uses AI to help warehouse robots navigate more efficiently and enable natural language communication with human workers.

Beyond cloud services, Amazon’s subscription services maintain low-teens growth through exclusive NFL and NBA content. The advertising services segment sustains approximately 20% year-over-year growth from billions of monthly visitors.

Autonomous Vehicle Opportunity

Uber positions itself as a key partner for autonomous vehicle deployment. The platform connects riders with robotaxis in Phoenix, Austin, Atlanta, and Abu Dhabi through partnerships with Waymo and WeRide.

CEO Dara Khosrowshahi estimates autonomous driving technology could unlock a trillion-dollar opportunity in the U.S. alone. Uber maintains partnerships with 20 autonomous vehicle companies and plans five additional deployments across Asia, the Middle East, and U.S. markets through 2025.

The company’s data advantages improve dispatch efficiency, routing decisions, and pricing strategies. Monthly active users increased 15% while trips grew 18%, indicating higher engagement frequency among existing customers.

Ackman began purchasing Amazon shares during the second quarter of 2025. Pershing Square’s Chief Investment Officer cited confidence in the company’s ability to navigate cloud computing slowdowns and minimal tariff impacts on retail operations.

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