American Express (AXP)

Founded: 1850 (New York) IPO: 1970s Market Cap: ~$170B (2024) Buffett's Holding Since: 1964 (60+ years with adjustments)

Overview

American Express operates the world's largest payments network, with 140+ million cards in force and presence in 100+ countries. Buffett has held Amex for over 60 years, weathering multiple crises.

Why American Express Has a Wide Moat

1. Network Effect

More merchants accepting Amex → more consumers want Amex → more merchants accept it. Classic flywheel.

2. Premium Brand

American Express connotes prestige. The "Amex" brand commands loyalty from affluent consumers who spend more.

3. Closed-Loop System

Unlike Visa/MasterCard (four-party), Amex runs a three-party system — they issue cards AND operate the network. Higher economics.

4. Switching Costs

Corporate travel and expense systems are built around Amex. Changing is costly and disruptive.

Buffett's Investment

Historical Holdings

Buffett first invested in Amex in the 1960s. He nearly sold during the 1974 crisis but held. Reinvested heavily during the 2008 crisis.

The Salad Oil Scandal (1963-1964)

Buffett actually reduced his Amex stake during the salad oil scandal but maintained a core position. This taught him about "extraordinary businesses at reasonable prices."

2008-2009 Crisis

Buffett disclosed he added to Amex during the crisis when others feared the financial system would collapse.

Key Financials (2023)

Metric	Value
Revenue	$60B
Net Income	$8B
Card Members	140M+
Acceptance	170+ countries

Why It Fits the Moat Concept

Moat Type	American Express Evidence
Network Effect	Largest premium card network
Brand	Prestige pricing, loyalty
Switching Costs	Corporate expense systems
Efficient Scale	Dominant in business travel

American Express