American Express & Apple
American Express is one of the original launch partners for Apple Pay and integrates deeply with Apple Wallet for card storage, digital receipts, and Apple Card-like features for Amex cardholders. Amex was one of three networks at Apple Pay's October 2014 launch. The relationship also includes Apple Card partnership through the Amex Platinum and Gold co-benefits ecosystem.
Why it matters: AmEx's premium card demographic, characterized by high spending and tech-forward consumers, overlaps significantly with the iPhone user base. Amex cardholders who use Apple Pay tend to show higher transaction frequency and spend. For Apple, having all three major US networks at launch was critical to merchant and consumer adoption.
Berkshire Hathaway is American Express's largest single shareholder, owning approximately 151.6 million shares (approximately 21% of AXP) worth approximately $56B as of Q4 2025. Warren Buffett has held this position for over 30 years, making it one of Berkshire's most iconic long-term investments. American Express generates significant float income from card member prepayments and billing cycles that aligns with Buffett's preference for businesses with inherent capital advantages.
Why it matters: Buffett views American Express as a 'consumer franchise' business with durable competitive moats: brand loyalty among premium spenders, merchant acceptance network effects, and a business model that earns on both sides of transactions (cardholders and merchants). AmEx's premium card positioning generates higher per-transaction economics than Visa/Mastercard's network-only model, with the ability to earn net interest on revolving balances providing additional income. Berkshire's 20%+ ownership means Berkshire proportionally consolidates AmEx earnings.