Key Takeaways
- • Pershing Square Capital Management, Bill Ackman's hedge fund, purchased positions in Visa (NYSE: V) and Mastercard (NYSE: MA) during Q2 2026, immediately after Berkshire Hathaway sold multibillion-dollar stakes in both payment processors during Q1 2026.
- • Berkshire Hathaway, under new CEO Greg Abel, exited longstanding positions in Visa and Mastercard that were originally acquired over a decade ago under Warren Buffett's leadership, marking a significant portfolio rotation by the conglomerate.
- • Visa and Mastercard operate capital-light "tollbooth" business models that collect transaction fees on global commerce without assuming credit risk, positioning them as high-quality assets that benefit from inflation.
- • The divergent moves by two major institutional capital allocators—Berkshire selling while Pershing Square buying—create a direct test case for investors evaluating the relative merit of these two payment-processing franchises.
Summary
Billionaire Bill Ackman's hedge fund, Pershing Square Capital Management, has positioned itself on the opposite side of a significant portfolio decision made by Berkshire Hathaway during the first half of 2026. During Q1, Berkshire Hathaway—now led by CEO Greg Abel—exited multibillion-dollar positions in both Visa and Mastercard, two foundational payment-processing stocks that had been held as core portfolio holdings for over a decade under the tenure of Warren Buffett.
The timing of these transactions reflects divergent views on the payment-processing sector. Pershing Square acquired stakes in both Visa and Mastercard as part of a 15-position portfolio during the three-month period ending June 30, 2026. This move positions Ackman's firm in direct contrast to Berkshire's exit, presenting institutional investors with a clear comparison between two of the most disciplined capital allocators in financial markets.
Both Visa and Mastercard operate what Pershing Square characterizes as "tollbooth" business models—a structure that generates consistent revenue streams with minimal capital requirements. These companies process transactions globally, earning small fees on each transaction while avoiding the credit risk exposure that affects traditional lending operations. The business model provides built-in inflation protection, as transaction volumes and merchant fees typically rise alongside economic activity and price levels.
For investors evaluating this divergence, the fundamental quality of both businesses is not in dispute. Visa and Mastercard rank among the world's highest-quality financial franchises, evidenced by their durable competitive moats and consistent returns on capital. The disagreement appears to center on valuation and portfolio positioning at a specific point in the market cycle, rather than questions about the long-term viability of either company. This divergence provides a meaningful data point for assessing how two major institutional investors are calibrating their exposure to the payment-processing sector in 2026.
The timing of these transactions reflects divergent views on the payment-processing sector. Pershing Square acquired stakes in both Visa and Mastercard as part of a 15-position portfolio during the three-month period ending June 30, 2026. This move positions Ackman's firm in direct contrast to Berkshire's exit, presenting institutional investors with a clear comparison between two of the most disciplined capital allocators in financial markets.
Both Visa and Mastercard operate what Pershing Square characterizes as "tollbooth" business models—a structure that generates consistent revenue streams with minimal capital requirements. These companies process transactions globally, earning small fees on each transaction while avoiding the credit risk exposure that affects traditional lending operations. The business model provides built-in inflation protection, as transaction volumes and merchant fees typically rise alongside economic activity and price levels.
For investors evaluating this divergence, the fundamental quality of both businesses is not in dispute. Visa and Mastercard rank among the world's highest-quality financial franchises, evidenced by their durable competitive moats and consistent returns on capital. The disagreement appears to center on valuation and portfolio positioning at a specific point in the market cycle, rather than questions about the long-term viability of either company. This divergence provides a meaningful data point for assessing how two major institutional investors are calibrating their exposure to the payment-processing sector in 2026.
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