• Investors may be wondering whether American Express at around US$325.76 is still offering value, or if most of the easy gains are already behind it.
• The share price has moved 2.5% over the last week and 8.5% over the last month, with a 31.0% return over the past year, set against a 12.6% decline year to date and a 106.7% and 135.2% return over 3 and 5 years respectively.
• Recent attention on American Express has focused on how the business is positioned within diversified financials and how investors are weighing its long term growth profile against current pricing. This context is important for considering whether the current share price already reflects that long term potential or still leaves room for mispricing.
• On Simply Wall St's 6 point valuation checklist, American Express scores 2 out of 6. The following sections explain what that means across different valuation methods and then return to a broader way to think about value beyond the headline numbers.

American Express scores just 2/6 on our valuation checks. See what other red flags we found in the full valuation breakdown.

Approach 1: American Express Excess Returns Analysis

The Excess Returns model asks a simple question: after covering the required return for shareholders, how much extra value does American Express generate on its equity base, and what is that worth per share today?

For American Express, book value is $48.80 per share and the stable book value used in the model is $58.40 per share, based on future book value estimates from 8 analysts. The model applies a stable EPS of $21.00 per share, drawn from return on equity estimates from 11 analysts, against a cost of equity of $4.86 per share. That gap leads to an excess return of $16.15 per share, supported by an average return on equity of 35.96%.

Combining these inputs, the Excess Returns model arrives at an estimated intrinsic value of about $387.57 per share. Compared with the recent share price around $325.76, this points to an implied discount of roughly 15.9%, indicating that the shares are currently assessed as undervalued on this basis.

Result: UNDERVALUED

Our Excess Returns analysis suggests American Express is undervalued by 15.9%. Track this in your watchlist or portfolio, or discover 59 more high quality undervalued stocks.

Approach 2: American Express Price vs Earnings

P/E is a useful way to value a profitable company because it ties the share price directly to the earnings that each share generates. In simple terms, it tells you how many dollars investors are currently willing to pay for one dollar of earnings.

What counts as a “normal” P/E depends on what the market expects for future growth and how risky those earnings look. Higher expected growth or lower perceived risk can support a higher P/E, while lower growth or higher risk usually line up with a lower multiple.

American Express currently trades at about 20.88x earnings. That sits above the Consumer Finance industry average P/E of 9.08x, and slightly below the peer group average of 22.06x. Simply Wall St’s Fair Ratio for American Express is 18.35x, which reflects the multiple that would be expected given its earnings profile, industry, profit margins, market value and risk factors.

The Fair Ratio is more tailored than a simple comparison with peers or the broad industry because it adjusts for company specific characteristics rather than assuming one size fits all. Compared with this Fair Ratio of 18.35x, the current P/E of 20.88x suggests the shares are trading at a premium on this metric.

Result: OVERVALUED

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Upgrade Your Decision Making: Choose your American Express Narrative

Earlier it was mentioned that there is an even better way to understand valuation. Narratives take center stage as a simple tool that lets you attach a clear story about American Express to the numbers, linking your view on its future revenue, earnings and margins to a financial forecast and then to a fair value you can compare with today’s share price.

On Simply Wall St’s Community page, Narratives are available as ready made, easy to read cases that update automatically when fresh information arrives, such as earnings, guidance, news or changes in analyst assumptions. This means your fair value view is kept current without manual rework.

For American Express, one Narrative currently anchors around a lower fair value near US$287.00, with analysts assuming revenue growth of about 11.5% a year, a profit margin of roughly 15.1%, earnings of US$14.0b and a future P/E of 16.8x. A higher Narrative points to a fair value around US$458.63, using revenue growth of roughly 12.7% a year, profit margins near 17.0%, earnings of US$16.4b and a future P/E of 23.0x.

By comparing those different Narratives with the recent American Express share price around US$325.76, you can decide which story you align with and use the gap between each Fair Value and the market Price to guide whether the stock looks expensive, cheap or roughly in line with your own expectations.

For American Express, however, we will make it really easy for you with previews of two leading American Express Narratives:

On Simply Wall St, these Narratives turn all the earnings forecasts, margins, multiples and discount rates into a single, coherent story that you can either agree with, tweak or completely reject. Here is how the current bullish and bearish views line up in simple terms so you can quickly see which one feels closer to your own assumptions about the business and the stock.

Fair value: US$378.94 per share

Implied pricing gap: about 14.0% below this fair value based on the recent price of US$325.76

Revenue growth used in the model: 11.57% a year

• Focuses on premium cardmembers, younger cohorts and international markets to support fee income, billed business and what analysts describe as earnings stability.
• Relies on strong reported credit quality, Fed stress test outcomes and capital returns as support for returns on equity and the ability to keep funding new products and partnerships.
• Flags risks around competition in premium cards, changing payment habits, policy proposals on credit and potential disruption from low cost digital payment rails.

Fair value: US$308.19 per share

Implied pricing gap: about 5.7% above this fair value based on the recent price of US$325.76

Revenue growth used in the model: 10.81% a year

• Highlights product refreshes, acquisitions like Resy, Tock and Rooam, and Membership Model changes as key supports for card uptake and spending, but treats current pricing as full for those benefits.
• Builds on analyst revenue and EPS projections that rise through 2026, while assuming a future P/E of 17.59x that is lower than some of the more optimistic estimates used elsewhere.
• Points to concentration in card fees, ongoing international challenges and the current share price level as reasons to treat the stock as closer to fully valued on this set of assumptions.

Put side by side, these Narratives show how different views on future growth, margins, credit risk and the right P/E multiple can lead to very different fair values for the same company. The most useful step is to decide which set of assumptions looks more realistic to you. Then adjust them if needed so that your own American Express view is grounded in clear numbers rather than just the latest share price moves.

To see how these results tie into long-term growth, risks, and valuation, check out the full range of community narratives for American Express on Simply Wall St. Add the company to your watchlist or portfolio so you'll be alerted when the story evolves.

Do you think there's more to the story for American Express? Head over to our Community to see what others are saying!

This article by Simply Wall St is general in nature. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.