American Expressvs.Fiserv
AXP vs FI · both in Payment rails & networks, part of the Banks, payments & capital markets value chain: The networks and processors that take a fee every time a card is swiped, the fee engine.
American Express is about 6.7× larger than Fiserv by market cap; Fiserv trades at the lower P/E (9.5 vs 20.1); year to date, American Express leads (−9.2% vs −15.5%).
Supply-chain link: American Express supplies Fiserv.
Side by side
| AXP | FI | |
|---|---|---|
| Market cap | $230B | $34.3B |
| Price | $336.15 | — |
| Today | +0.1% | — |
| Return YTD | −9.2% | −15.5% |
| Return 1Y | +6.4% | +23.2% |
| P/E | 20.1 | 9.5 |
| P/S | 2.8 | 1.6 |
| P/B | 6.7 | 1.4 |
Data as of 2026-08-27 · updates daily after U.S. close
The two companies
American ExpressAXP
Network and issuer are the same company here, so American Express collects merchant fees and cardholder interest both, and keeps the customer relationship from end to end. Its cardholders skew affluent.
Full AXP profile →FiservFI
Card transactions processed for banks, and the Clover terminals on shop counters. Paid per transaction.
Full FI profile →More AXP & FI comparisons
Other head-to-heads in the Payment rails & networks segment.