American Express Stock Is Up This Week. Here’s Why the Platinum Refresh Keeps Paying Off

Rexielyn Diaz7 minute read
Reviewed by: David Hanson
Last updated Sep 16, 2026

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Key Stats for AXP Stock

  • Past week performance: +1.2%
  • 52-week range: $291 to $387
  • Valuation model target price: $441
  • Implied upside: 36.0% over 2.3 years

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Premium Cards, Premium Growth

American Express (AXP) edged higher this week after the company reaffirmed its confidence at the Barclays Global Financial Services Conference. Management pointed to first-half 2026 revenue growth of 10% on an FX-adjusted basis. That performance pushed leadership to lift its full-year revenue outlook to roughly 10%, while keeping earnings-per-share guidance at $17.30 to $17.90. Investors have grown used to AmEx delivering, but the tone this week leaned more confident than cautious.

AXP NTM Normalized Earnings Per Share (TIKR)

The Platinum Card refresh drives the growth. AmEx rolled the card out over a year ago, and CEO Steve Squeri has repeatedly told investors that a refresh takes a year or two to show its full benefit. That timeline is now playing out. Card fee revenue is accelerating, and retention rates on the repriced U.S. Platinum portfolio stayed flat year over year even after a $200 fee increase. Premium customers aren’t blinking at higher costs.

AmEx is also widening its lounge network and travel partnerships. It expanded its Aspire lounge footprint into Calgary and Montreal, and it keeps building out its Resy and TheFork dining platforms. Those moves reinforce the membership model that keeps high-spending customers engaged across travel and dining, categories where spend held up even as broader consumer sentiment wavered.

Squeri summarized the quarter simply: “We delivered another excellent quarter with 10% revenue growth and EPS at $4.53.” Going forward, the question is whether commercial card growth, which slowed earlier this year amid fintech competition from Ramp and Brex, can keep accelerating alongside the consumer business.

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Why the Model Still Sees Room to Run

AXP Guided Valuation Model (TIKR)

Under valuation model assumptions realized through 12/31/28, the stock is modeled using:

  • Revenue Growth (CAGR): 9.2%
  • Operating Margins: 26.7%
  • Exit P/E Multiple: 17.4x

Based on these inputs, the model estimates a $441 target price, implying a 36.0% total return from the current share price and a 14.3% annualized return over the next 2.3 years.

A 14.3% annualized return sits right at the edge of what counts as genuinely attractive. The case rests on AmEx holding its current multiple rather than needing a re-rating. That’s a lower bar than most growth stocks require. Because the model assumes only 17.4x exit earnings, close to where AmEx already trades, the upside comes almost entirely from earnings growth compounding rather than investors paying more for the stock.

AXP Guided Valuation Model (TIKR)

That’s a meaningful distinction from a business priced for perfection. AmEx’s operating margin near 27% reflects a closed-loop network that earns fees on both sides of a transaction, unlike Visa or Mastercard, which only process payments. That structural advantage supports steadier margins even if spending growth slows.

Credit quality is the risk to watch. AmEx’s July net write-off rate on U.S. consumer cards ticked up to 1.7%, a reminder that even premium cardholders aren’t immune to rising delinquencies. If that trend accelerates, the 9.2% revenue growth assumption could prove optimistic. But against its own trading history, AmEx has rarely looked this reasonably priced relative to its growth.

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AXP vs. the Card Networks: A Valuation Mismatch

American Express occupies an unusual spot in payments. It competes with Visa and Mastercard for spending volume, yet it trades at a noticeably lower multiple than either. Visa (V) trades around 24.5x to 24.9x forward earnings, with revenue growth near 14.4% and adjusted net margins above 50%. Mastercard (MA) trades similarly, around 24x to 28x forward earnings, with revenue growth close to 14.1% and EPS growth above 22%.

AXP NTM P/E vs V vs MA (TIKR)

AmEx, by contrast, trades at roughly 17.4x forward earnings despite EPS growth projected in the mid-teens for the next two years. The gap exists because Visa and Mastercard run asset-light networks with fatter operating margins, above 60%, since they never touch consumer credit risk. AmEx does, so investors demand a discount for the added exposure even though its closed-loop model captures more revenue per transaction.

That discount narrows the case for either Visa or Mastercard clearly deserving a premium. AmEx’s forward 2-year revenue CAGR of 9.6% trails the networks, but its dividend yield near 1.2% and buyback program give shareholders a more direct return path. The comparison isn’t about which business model is better. It’s about which one the market currently mispriced, and right now that appears to be AmEx.

Highlight American Express’s fourth consecutive double-digit quarter, with Q2 revenue up 10%, EPS up 11%, and spending growth accelerating to 9% >>>

What’s Driving AXP Stock Going Forward?

The clearest catalyst is continued Platinum Card momentum. Management expects the current fee-growth acceleration to keep building through Q3 and exit 2026 in the high teens, driven by the repriced U.S. Platinum portfolio finally cycling through its first full year. If that materializes, card fee revenue becomes a bigger, more durable slice of the business.

Commercial payments are the next lever. AmEx expanded its virtual card capabilities through Conferma and keeps investing to win back small and mid-sized business volume from fintech rivals. Squeri has acknowledged the “bounce back” in SME billings is still early, so how quickly that segment recovers will shape whether AmEx hits the higher end of its guidance.

TheFork and Resy integration also matters. AmEx’s proposed acquisition of TheFork wasn’t part of its original 2026 plan, so funding it means investing more in the back half of the year than initially budgeted. Management frames it as a long-term bet on deepening merchant relationships, but it will pressure near-term expenses.

Credit trends deserve continued attention too. A rising net write-off rate is manageable at current levels, but any acceleration would test the premium-customer thesis that underpins the entire valuation model.

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Should You Invest in American Express?

The only way to really know is to look at the numbers yourself. TIKR gives you free access to the same institutional-quality financial data that professional analysts use to answer exactly that question.

Pull up AXP, and you’ll see years of historical financials, what Wall Street analysts expect for revenue and earnings in the quarters ahead, how valuation multiples have moved over time, and whether price targets are trending up or down.

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Disclaimer:

Please note that the articles on TIKR are not intended to serve as investment or financial advice from TIKR or our content team, nor are they recommendations to buy or sell any stocks. We create our content based on TIKR Terminal’s investment data and analysts’ estimates. Our analysis might not include recent company news or important updates. TIKR has no position in any stocks mentioned. Thank you for reading, and happy investing!

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