Banco Santander’s share price has produced very strong gains over the past five years, while several valuation cross checks still suggest the stock trades at a discount to an estimated intrinsic value. For investors, that combination raises the question of how much of the recent success is already reflected in the current price.
Banco Santander has returned 362.7% over the past five years, which makes the current valuation more sensitive to any change in market expectations.
The completed acquisition of Webster Financial in the U.S. may support future earnings power. However, there is a risk that integration or credit costs in that enlarged footprint could weigh on returns.
The Excess Returns intrinsic value estimate points to Banco Santander trading at roughly a 31.8% discount, and the stock screens as undervalued on earnings-based multiples. Together these factors form a mixed picture rather than a clear bargain or clear overvaluation, even though the stock scores 4 out of 6 on the broader value checks.
The issue now is whether Banco Santander’s current price still leaves enough room relative to intrinsic value for investors who are considering the stock after such a strong multi year run.
Compare Banco Santander’s run and valuation gap with other potential ideas by scanning our hand picked list of 274 high quality undervalued stocks that also combine solid fundamentals with discounted prices.
Is Banco Santander Still Cheap on Excess Returns?
The Excess Returns model evaluates whether Banco Santander is generating returns on equity above its estimated cost of equity. For Banco Santander, the model uses a Book Value of €7.64 per share and a Stable EPS of €1.27 per share, based on weighted future Return on Equity estimates from 14 analysts. The implied Cost of Equity is €0.69 per share, while the Excess Return is €0.58 per share, supported by an Average Return on Equity of 15.49%. A Stable Book Value of €8.21 per share, sourced from 10 analyst estimates, underpins the long-term profile.
Using these inputs, the Excess Returns approach arrives at an intrinsic value of about €18.63 per share. That is around 31.8% above the current share price, so on this framework the stock screens as undervalued. Because the completed acquisition of Webster Financial expands Banco Santander’s U.S. presence but also adds integration and credit risk, the gap between price and model value may partly reflect caution around how that larger footprint performs.
On balance, the Excess Returns model indicates Banco Santander currently appears undervalued relative to its estimated intrinsic value.
Story Continues
Our Excess Returns analysis suggests Banco Santander is undervalued by 31.8%. Track this in your watchlist or portfolio, or discover 274 more high quality undervalued stocks.
SAN Discounted Cash Flow as at Aug 2026
Does Banco Santander Look Undervalued on Earnings?
The P/E ratio is a useful way to think about Banco Santander because earnings are a key focus for bank investors. It helps you see what you are paying for each euro of profit today.
Banco Santander currently trades on a P/E of about 14.3x. That is above the wider Banks industry average of 11.4x, yet it sits below the peer group average of 15.3x. A fair P/E based on the company’s profile is estimated at 16.8x, which is higher than both the current multiple and the simple industry benchmark.
This fair ratio suggests the stock trades at a discount to where it might sit given its size, earnings profile and risk mix, even though the market already prices Banco Santander above the broad sector average.
On this P/E yardstick, Banco Santander appears undervalued relative to what the model implies would be a fairer earnings multiple.
BME:SAN P/E Ratio as at Aug 2026
See what the numbers say about this price — find out in our valuation breakdown.
The Banco Santander Narrative: What Would Justify Today’s Price?
Simply Wall St Narratives for Banco Santander pick up where this valuation puzzle leaves off. They spell out which paths for Banco Santander’s growth, margins and earnings would need to play out for the stock to be worth materially more or materially less than today’s price on the Community page. Each narrative links its number to a clear view on how growth, profitability and risks might evolve, so you can revisit those assumptions as new information emerges.
Community narratives around Banco Santander are split between those who see the current setup as roughly fair and those who think expectations run ahead of themselves.
Bull case: roughly fairly valued
“Ongoing transformation and cost reduction programs (ONE Transformation) are delivering structural operational leverage, with significant potential remaining as legacy systems are phased out…”
Read the full Bull Case to see why Banco Santander could be undervalued
Bear case: 22% overvalued
“Ongoing rate cuts in key markets such as Europe and Brazil risk exposing how dependent profitability has become on currently strong net interest margins and hedge contributions…”
Read the full Bear Case to see why Banco Santander could be overvalued
Do you think there’s more to the story for Banco Santander? Head over to our Community to see what others are saying!
The Bottom Line
Banco Santander screens as undervalued on both the Excess Returns intrinsic value estimate and its earnings multiple, even after a very strong five year run. The broader checks still point to a mixed picture, so the gap between market price and model values is not a simple signal. The key question is whether the integration and credit risks tied to the enlarged U.S. footprint are already fully reflected in that discount or whether they justify a more cautious market stance from here.
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.
Companies discussed in this article include SAN.MC.
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