When Warren Buffett stepped down as CEO of Berkshire Hathaway at the end of 2025, he left behind an equity portfolio filled with durable, cash-generating businesses. However, the portfolio saw some surprising shifts before his departure, evolving to include dominant technology companies alongside its traditional holdings in consumer brands and financial institutions.
Two notable companies that exemplify this blend of established and new are American Express and Alphabet. While American Express represents a long-standing Buffett investment that has consistently compounded capital, Alphabet is a more recent addition, carrying significance as one of the last major portfolio additions under his leadership.
Given that both stocks are held in the Oracle of Omaha’s final portfolio, investors may be interested in comparing their performance and potential. This analysis suggests one may be a superior investment choice.
American Express: A Berkshire Hathaway Cornerstone
The importance of American Express to Berkshire Hathaway cannot be overstated. As of Buffett’s departure, the integrated payments company was the conglomerate’s second-largest equity holding.
With a valuation exceeding $45 billion, American Express constituted approximately 15% of Berkshire Hathaway’s total equity portfolio. The investment case for American Express is anchored by its powerful brand recognition, a loyal and affluent customer base, a unique closed-loop payments network that captures value from both consumers and merchants, and substantial net interest income generated from its lending activities.
The company’s robust performance is evident in its recent financial results. American Express reported fourth-quarter 2025 revenue of $19.0 billion, a 10% increase year over year. For the full fiscal year, the company achieved a record $72.2 billion in revenue.
A key driver of this success is the company’s premium card offerings, which provide extensive member benefits. In 2025, American Express generated a record $10 billion in net card fees, marking its 30th consecutive quarter of double-digit growth in this segment.
Alphabet: A Tech Giant in Buffett’s Portfolio
Alphabet, the parent company of Google, represents a significant technological investment within Berkshire Hathaway’s portfolio. Its inclusion highlights Buffett’s strategic shift towards embracing leading technology firms.
The company’s core strengths lie in its dominant positions in online search, digital advertising, cloud computing, and its pioneering work in artificial intelligence. These diverse revenue streams provide a strong foundation for continued growth.
Alphabet’s advertising business remains a powerhouse, consistently generating substantial revenue. Furthermore, its investments in cloud services and other ventures like Waymo (self-driving technology) and Verily (life sciences) position it for future innovation and market leadership.
The company’s financial performance has been robust, driven by the resilience of its advertising segment and the growth of its cloud division. Investors are closely watching its ability to monetize new technologies and maintain its competitive edge in rapidly evolving markets.
Our Analysis
Both American Express and Alphabet are formidable companies with strong market positions. American Express offers stability, a powerful brand, and consistent revenue streams from its payment network and lending operations. Its deep integration with Berkshire Hathaway’s portfolio underscores its value.
Alphabet, on the other hand, represents a bet on future growth driven by technological innovation, particularly in AI and cloud computing. While it offers higher growth potential, it also comes with the inherent volatility and competitive pressures of the tech sector.
For investors seeking a blend of stability and growth, American Express might appear more attractive due to its proven track record and its role as a foundational holding. However, the long-term growth prospects offered by Alphabet’s dominance in key technology sectors, including the burgeoning field of AI, present a compelling case for its inclusion in a growth-oriented portfolio. The company’s position in AI, a field poised for significant expansion, makes it a key player for the next decade, potentially rivaling the opportunities seen in companies like Nvidia and Microsoft.
Fonte: Yahoo Finance
