Finance.Foundation
Comparison · seed-0.6 · 2026-08-29

Mastercard (MA) vs American Express (AXP)

Mastercard (MA) and American Express (AXP) side by side: both in Financials, both listed on New York Stock Exchange. Mastercard is the larger of the two by approximate market capitalization (about 2.2×).

FieldMastercardAmerican Express
Legal nameMastercard IncorporatedAmerican Express Company
TickerMAAXP
ExchangeNew York Stock Exchange XNYSNew York Stock Exchange XNYS
JurisdictionUnited StatesUnited States
SectorFinancialsFinancials
IndustryPaymentsPayments & consumer finance
Market cap ≈$500bn$230bn
Founded19661850
Reporting currencyUSDUSD
LEIAR5L2ODV9HN37376R084R4PP93JZOLY261QX3811
ISINUS57636Q1040US0258161092
FIGIBBG001SKNNS6BBG001S5P034
Index membershipS&P 500S&P 500
Held by (covered funds)

Mastercard

Second-largest card network worldwide; payment processing, fraud tools and open-banking services.

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American Express

Closed-loop card network and lender to affluent consumers and small businesses, earning revenue from merchant discount fees, annual card fees and lending.

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What they share

Same indices: S&P 500

Approximate reference values (seed-0.6 · 2026-08-29) — not real-time, not investment advice. Both sides as data: /api/v1/companies/mastercard · /api/v1/companies/american-express