American Express Company vs Discover Financial Services: Strategic Comparison

This in-depth comparison examines American Express Company and Discover Financial Services across revenue, market value, business model, competitive positioning, and long-term growth strategy. Whether you are researching American Express Company on its own, evaluating Discover Financial Services, or weighing the two companies side by side, the breakdown below highlights where each company leads and where the gap between American Express Company and Discover Financial Services is widest.

On the headline numbers, American Express Company reports annual revenue of $72.2B against $17.9B for Discover Financial Services, while their respective market capitalizations stand at $205.8B and $51.8B. American Express Company is headquartered in United States and Discover Financial Services operates from United States, and those different home markets shape how each company competes.

American Express Company: American Express is a payments company that sells access to its own card members. It does not rent its network to thousands of issuing banks the way Visa and Mastercard do; it issues the cards, signs the merchants and keeps the discount fee. In FY2025 it carried $1,897.0 billion of network volumes, had 152.8 million cards in force worldwide including 86.6 million it issues itself, and reported $72.2 billion in total revenues net of interest expense. The premium lineup runs from the Green Card up through the Gold Card at $325 a year, the Platinum Card at $895 after its September 2025 refresh, and the invitation-only Centurion Card, whose fee the company does not publish.

Discover Financial Services: Discover is best known for the orange Discover it cash back card, but its strategic value lies in the networks behind it. The company issues cards and personal loans, takes deposits online through Discover Bank, and runs the Discover network, the PULSE debit and ATM network, and Diners Club International. That combination of lender and network owner is why Capital One paid for it, and why the brand survives as a subsidiary rather than disappearing.

American Express Company and Discover Financial Services pursue distinct approaches to generating revenue, and understanding how each company operates is the foundation of any fair comparison between American Express Company and Discover Financial Services.

American Express Company business model: American Express runs a closed-loop payments business: it issues the card, owns the network, underwrites the credit and contracts with the merchant. Visa and Mastercard only move the transaction between an issuing bank and an acquiring bank, so they never see both sides of a purchase. Because Amex holds every side of the relationship, it keeps the whole merchant discount fee rather than sharing it, and in FY2025 discount revenue equalled 2.24 percent of the $1,669.8 billion its card members billed. The trade-off is price: merchants pay more to accept Amex than to accept an open-loop card, so the company has to justify the rate with card members who spend more. Average spending per proprietary basic card member was $25,453 in 2025. Amex funds that proposition with annual fees, which reached $10.0 billion in net card fees in FY2025 at an average of $117 per proprietary card, and spends the money back on Membership Rewards, the Centurion Lounge network, Resy and Tock dining access and service. Since converting to a bank holding company in 2008 it has also lent against card balances through American Express National Bank, producing $17.4 billion of net interest income in FY2025.

Discover Financial Services business model: Discover makes money two ways. As a bank, it lends to consumers through Discover-branded credit cards and personal loans and earns net interest income on those balances, funded largely by online savings and CD deposits rather than branches. As a network, it earns discount and interchange revenue when merchants accept Discover cards and processing fees when banks route debit and ATM transactions over PULSE. Unlike Visa and Mastercard, which do not lend, Discover keeps both the lending spread and the network economics on its own cards. Interest income on card loans is by far the largest piece.

The durability of a company's moat often decides long-term winners. Here is how the competitive advantages of American Express Company stack up against those of Discover Financial Services.

American Express Company competitive advantage: American Express competes on the spending power of its card members rather than on price or ubiquity. Average spending per proprietary basic card member was $25,453 in 2025, which is the argument it makes to merchants who pay a higher discount rate, an average of 2.24 percent of billed business. Owning both sides of the transaction also gives it card member and merchant data that open-loop networks do not hold, which feeds underwriting and targeted offers. Credit outcomes reflect the customer mix: a 2.0 percent net write-off rate on consumer and small business loans and receivables in 2025, with 1.3 percent of balances 30 or more days past due.

Discover Financial Services competitive advantage: Discover's advantage is ownership of payment rails. Very few US issuers control their own network, so Discover could keep merchant fees on its own card volume and offer network services to other banks through PULSE. Combined with low-cost online deposits and a no-annual-fee, cash back brand with US-based customer service, that made it a strategic target. Capital One's main stated rationale for the deal was moving its own debit and credit volume onto these rails.

Future prospects matter as much as current results. The growth strategies below explain how American Express Company and Discover Financial Services each plan to expand from here.

American Express Company growth strategy: Amex's growth strategy is aggressively focused on capturing the next generation of wealthy spenders: Millennials and Gen Z. They have successfully revamped their well-known Platinum and Gold cards with perks tailored specifically for younger demographics (like Uber credits and dining rewards), resulting in rapid growth among younger cohorts. Additionally, they are heavily targeting small and medium-sized businesses (SMBs), aggressively expanding their corporate card and B2B payment processing services to capture large commercial spending volumes.

Discover Financial Services growth strategy: Before the deal, Discover had pulled back on new account growth while it fixed compliance problems. Under Capital One the strategy has shifted to network scale: migrating Capital One debit cards to Discover (about 25 million done by mid-2026), testing Capital One credit cards on the network, and widening acceptance abroad.

A closer look at the financial trajectory of American Express Company and Discover Financial Services rounds out the comparison.

American Express Company: American Express reported $72.2 billion in total revenues net of interest expense for FY2025, up 10 percent, and $10.8 billion of net income, or $15.38 per diluted share. The mix is less fee-only than its premium image suggests: discount revenue on merchant transactions was $37.4 billion, net interest income on card member loans was $17.4 billion, net card fees were $10.0 billion and service fees and other revenue were $7.5 billion. Growth in 2025 came disproportionately from the two smaller lines, with net card fees up 18 percent and net interest income up 12 percent against 6 percent growth in discount revenue. Return on average equity was 33.9 percent, the net write-off rate on consumer and small business loans and receivables was 2.0 percent, and the company declared $3.28 per share in dividends while average diluted shares fell from 713 million to 696 million.

Discover Financial Services: Discover's reported revenue net of interest expense rose from $11.1 billion in 2020 to $17.9 billion in 2024. Net income was $4.5 billion in 2024 ($17.72 per diluted share), helped by a $381 million gain on the sale of its private student loan portfolio, after falling to $2.8 billion in 2023 when credit costs rose and the card misclassification issue surfaced. Total loans ended 2024 at $121.1 billion, including $102.8 billion of card loans. Discover stopped filing standalone annual reports after the May 2025 acquisition; its results are now reported inside Capital One.