• If you are wondering whether American Express stock is pricing in too much optimism or leaving some value on the table, it helps to start by lining up its recent returns against what you are actually paying for the business.
• The stock last closed at US$309.70, after a 1.0% decline over the past week, a 6.1% decline over the past month, and a 16.9% decline year to date. However, the 1 year return sits at 9.0% and the 3 year and 5 year returns are 112.4% and 106.0% respectively.
• These moves are coming in a period where American Express remains in focus for its role in payments and card-based spending. Investors are weighing how those business drivers line up against the current share price. That mix of shorter term weakness and longer term gains gives useful context before comparing the stock against different valuation methods.
• On Simply Wall St's 6 point valuation checklist, American Express scores a 3, which means it screens as undervalued on half of the checks. The next step is to compare what different valuation approaches suggest and then look at an even more complete way to think about value at the end of this article.

Approach 1: American Express Excess Returns Analysis

The Excess Returns model looks at how much profit a company is expected to generate above the return that shareholders require, and then assigns a value to those surplus profits.

For American Express, the model uses a Book Value of $49.85 per share and a Stable EPS of $21.23 per share, based on weighted future Return on Equity estimates from 12 analysts. The implied Cost of Equity is $4.85 per share, which leaves an Excess Return of $16.39 per share. That excess reflects an Average Return on Equity of 36.03%, applied to a Stable Book Value of $58.93 per share, sourced from weighted future Book Value estimates from 8 analysts.

When all those excess returns are projected and discounted, the Excess Returns valuation suggests an intrinsic value of about $408.68 per share. Compared with the recent share price of $309.70, this suggests the stock screens as around 24.2% undervalued under this model.

Result: UNDERVALUED

Our Excess Returns analysis suggests American Express is undervalued by 24.2%. Track this in your watchlist or portfolio, or discover 53 more high quality undervalued stocks.

Approach 2: American Express Price vs Earnings

For profitable companies, the P/E ratio is a useful way to think about what you are paying for each dollar of earnings. It ties the share price directly to the business’s current earnings power, which many investors use as a quick anchor for value.

What counts as a “normal” or “fair” P/E depends on how the market views a company’s growth prospects and risk. Higher growth and lower perceived risk can support a higher multiple, while slower growth or higher risk usually points to a lower one.

American Express currently trades on a P/E of 19.06x. That sits above the Consumer Finance industry average of 9.81x and close to the peer group average of 19.39x. Simply Wall St’s Fair Ratio for American Express is 18.73x. This reflects a tailored view of what the P/E might be given its earnings growth profile, industry, profit margins, market cap and risk factors.

This Fair Ratio is more specific than a simple peer or industry comparison because it adjusts for those company level characteristics rather than assuming all Consumer Finance stocks deserve the same multiple. With the actual P/E at 19.06x and the Fair Ratio at 18.73x, American Express screens as slightly expensive 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 on Simply Wall St take that further by letting you attach your own story about American Express to the numbers, link that story to a forecast for revenue, earnings and margins, then compare your Fair Value to the current price in a simple tool on the Community page. This tool updates as fresh news or results arrive. You can see, for example, how one investor might build a more optimistic American Express Narrative around a Fair Value of about US$463 per share, while another focuses on a more cautious view anchored closer to US$245 to US$246. You can then decide what those different viewpoints imply for whether the stock looks cheap or expensive to you today.

For American Express, here are previews of two leading American Express narratives:

Fair Value: US$378.94

Undervalued by about 18.3% versus the recent US$309.70 share price, based on this narrative's fair value.

Revenue growth assumption: 11.57%

• Focus on premium cardmembers, refreshed products, and younger customers, supporting retention, international growth, and earnings stability.
• Emphasis on credit quality, balance sheet strength, and capital returns, alongside ongoing investment in network, rewards, and partnerships.
• Key risks include competition in premium cards, shifts toward alternative payments, higher customer engagement costs, and potential disruption from new payment rails.

Fair Value: US$308.19

Overvalued by about 0.5% versus the recent US$309.70 share price, based on this narrative's fair value.

Revenue growth assumption: 10.81%

• Highlights product refreshes, acquisitions, and Membership Model changes as key drivers of revenue and earnings projections.
• Relies on continued growth in card fees, new card acquisitions, and high-spending customers to support future EPS targets.
• Flags execution and international challenges as potential constraints, which leave less room between projected value and the current share price.

If you want to go beyond the previews and see how other investors are framing American Express across growth, risk, and valuation, See what the community is saying about American Express.

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.