Sifting through countless of stocks in the Banks industry can be tedious, and sometimes two stocks are just too similar to judge which is the better investment. If you’re on the fence about investing in Regions Financial Corporation, Banco Santander or S.A. because you’re not sure how they measure up, it’s important to compare them on a few factors before making your decision.

Read on to learn how Regions Financial Corporation, Banco Santander and S.A. compare based on key financial metrics to determine which better meets your investment needs.

About Regions Financial Corporation, Banco Santander and S.A.

Regions Financial Corporation, a financial holding company, provides various banking and related products and services to individual and corporate customers. It operates through three segments: Corporate Bank, Consumer Bank, and Wealth Management. The Corporate Bank segment offers commercial banking services, such as commercial and industrial, commercial real estate, and investor real estate lending; equipment lease financing; deposit products; capital markets activities, such as securities underwriting and placement; and loan syndication and placement, foreign exchange, derivatives, merger and acquisition, and other advisory services to corporate, middle market, and commercial real estate developers and investors. The Consumer Bank segment provides consumer banking products and services related to residential first mortgages, home equity lines and loans, consumer credit cards, and other consumer loans, as well as the corresponding deposit relationships. The Wealth Management segment offers credit related products, and retirement and savings solutions; and trust and investment management, asset management, and estate planning to individuals, businesses, governmental institutions, and non-profit entities. It also provides investment and insurance products; home improvement lending, investment advisory services, equipment financing for commercial clients, small business customers, low-income housing tax credit corporate fund syndication services, financing to CRA-qualified customers, and broker-dealer services to commercial clients, as well as other specialty financing services. The company was founded in 1971 and is headquartered in Birmingham, Alabama.

Banco Santander, S.A. provides various financial products and services to individuals, small and medium-sized enterprises, large corporations, and public entities worldwide. The company operates through five segments: Retail & Commercial Banking, Digital Consumer Bank, Corporate & Investment Banking, Wealth Management & Insurance, and Payments. It offers demand and time deposits, mutual funds, and current and savings accounts; mortgages, consumer finance, loans, and various financing solutions; and project finance, debt capital markets, global transaction banking, and corporate finance services. The company also provides credit and debit cards, real estate loans, microfinance, and auto loans; corporate and investment banking services; advice on mergers and acquisitions; wealth, asset, and risk management services; and digital payments and technology solutions. In addition, it is involved in the securitization, leasing, management of portfolios, e-commerce, air transport, aircraft rental, software, consulting, fund and investment management, renewable energy, vehicle rental, insurance, advertising, marketing, telemarketing, automotive, agricultural, factoring, securities brokerage and investment, pension fund management, trade intermediary, venture capital fund, renting, restaurant, electricity production, IT, internet, and financial advisory and other activities; management, and other real estate activities; and purchase and sale of vehicles. Further, the company offers mobile and online banking services. Banco Santander, S.A. was formerly known as Banco Santander Central Hispano SA and changed its name to Banco Santander, S.A. in February 2007. The company was incorporated in 1856 and is headquartered in Madrid, Spain.

Latest Banks and Regions Financial Corporation, Banco Santander, S.A. Stock News

As of September 2, 2026, Regions Financial Corporation had a $25.5 billion market capitalization, compared to the Banks median of $750.0 million. Regions Financial Corporation’s stock is up 12.3% in 2026, up 0.1% in the previous five trading days and up 11.31% in the past year.

Currently, Regions Financial Corporation’s price-earnings ratio is 12.2. Regions Financial Corporation’s trailing 12-month revenue is $7.2 billion with a 30.8% net profit margin. Year-over-year quarterly sales growth most recently was 3.4%. Analysts expect adjusted earnings to reach $2.629 per share for the current fiscal year. Regions Financial Corporation currently has a 4.0% dividend yield.

As of September 2, 2026, Banco Santander, S.A. had a $213.3 billion market cap, putting it in the 99th percentile of all stocks. Banco Santander, S.A.’s stock is up 28.3% in 2026, up 3.4% in the previous five trading days and up 56.25% in the past year.

Currently, Banco Santander, S.A.’s price-earnings ratio is 14.6. Banco Santander, S.A.’s trailing 12-month revenue is $55.4 billion with a 33.5% net profit margin. Year-over-year quarterly sales growth most recently was 7.2%. Analysts expect adjusted earnings to reach $1.280 per share for the current fiscal year. Banco Santander, S.A. currently has a 2.0% dividend yield.

How We Compare Regions Financial Corporation, Banco Santander and S.A. Stock Grades

Stock evaluation requires access to huge amounts of data and the knowledge and time to sift through it all, make sense of financial ratios, read income statements and analyze recent stock movements. AAII created A+ Investor, a robust data suite that condenses data research in an actionable and customizable way suitable for investors of all knowledge levels, to help investors streamline and work through such data.

AAII’s proprietary stock grades come with A+ Investor. These offer intuitive A‐F grades for each of five key investing factors: value, growth, momentum, earnings estimate revisions and quality. Here, we’ll take a closer look at Regions Financial Corporation, Banco Santander and S.A.’s stock grades to see how they measure up against one another.

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Regions Financial Corporation, Banco Santander and S.A. Growth Grades

Company	Ticker	Growth
Regions Financial Corporation	RF	B
Banco Santander, S.A.	SAN	B

The foundation of growth investing is seeking out stocks of companies exhibiting strong, consistent and prolonged growth that is expected to continue into the future.

In order to compute the growth score and assign it a letter grade, the percentile ranks for each of three components‐consistency of annual sales growth, five-year sales growth rankings adjusted for extreme levels, and consistency of positive annual cash from operations‐must be determined. These three rank figures are added together, and the sum is ranked against the entire stock universe to arrive at a company’s Growth Score to create an equal distribution of grades.

The companies in the bottom 20% of the stock universe receive Growth Grades of F, considered to be very weak, while those in the top 20% receive A grades, which are considered very strong.

Regions Financial Corporation has a Growth Score of 77, which is Strong. Banco Santander, S.A. has a Growth Score of 64, which is Strong.

The Growth Grade Winner: It’s a Tie!

Looking at the Growth Grade breakdown above, both Regions Financial Corporation, Banco Santander and S.A. have a grade of B. For investors who focus solely on a company’s upward growth, further research should be conducted into both companies’ other financial metrics before deciding whether to invest.

Regions Financial Corporation, Banco Santander and S.A.’s Quality Grades

Company	Ticker	Quality
Regions Financial Corporation	RF	D
Banco Santander, S.A.	SAN	F

Like the Value Grade, AAII’s A+ Investor Quality Grade comes from the percentile rank of key metrics. Specifically, the Quality Score is the percentile rank of the average of the percentile ranks of return on assets (ROA), return on invested capital (ROIC), gross profit relative to assets, buyback yield, change in total liabilities to assets, accruals, Z double prime bankruptcy risk (Z) score and the F-Score.

The score is variable, meaning it can consider all eight measures or, should any of the eight measures not be valid, the remaining measures that are valid. To be assigned a Quality Score, stocks must have a valid (non-null) measure and corresponding ranking for at least four of the eight quality measures.

The Quality Score is used to assess the underlying “quality” of a particular stock. A higher-quality stock possesses traits associated with upside potential and reduced downside risk. Backtesting of the Quality Grade shows that stocks with higher grades, on average, outperformed stocks with lower grades over the period of 1998 through 2019.

Stocks receive better grades (higher scores) for having higher scores for the quality subcomponents and worse grades (lower scores) for lower scores for the subcomponents.

Regions Financial Corporation has a Quality Score of 30, which is Weak. Banco Santander, S.A. has a Quality Score of 19, which is Very Weak.

The Quality Stock Winner: No Clear Winner

Neither Regions Financial Corporation, Banco Santander or S.A. has a high enough Quality Grade to be considered a “winner.” Investors who are considering these companies should do additional due diligence and research to see if either could be a good addition to their portfolios. It’s important to look at a wide range of financial metrics in order to determine if Regions Financial Corporation, Banco Santander or S.A. is the better investment when it comes to quality.

Regions Financial Corporation, Banco Santander and S.A.’s Momentum Grades

Company	Ticker	Momentum
Regions Financial Corporation	RF	C
Banco Santander, S.A.	SAN	B

Momentum grades help to uncover stocks experiencing anomalously high rates of return; research finds that stocks with high relative levels of momentum tend to outperform, whereas those with low levels of momentum tend to continue underperforming. Momentum is based on the price change of a stock over a specified period relative to all other stocks.

Typically, AAII looks at the weighted relative strength over the trailing four quarters. The weighted four-quarter relative strength rank is the relative price change for each of the past four quarters. The most recent quarterly price change is given a weight of 40% and each of the three previous quarters are given a weighting of 20%.

Regions Financial Corporation has a Momentum Score of 51, which is Average. Banco Santander, S.A. has a Momentum Score of 80, which is Strong.

The Momentum Grade Winner: Banco Santander, S.A.

As you can clearly see from the Momentum Grade breakdown above, Banco Santander, S.A. is considered to have stronger momentum compared to Regions Financial Corporation. For those specifically looking for companies that have stronger momentum compared to other companies in the same industry, Banco Santander, S.A. could be a good stock to invest in. However, it’s important for investors to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

Other Regions Financial Corporation, Banco Santander and S.A. Grades

In addition to Growth, Quality and Momentum, A+ Investor also provides grades for Value and Estimate Revisions.

Earnings estimate revisions scores take into account the magnitude of a company’s earnings surprise in its last two reported fiscal quarters. Often, surprises beget further surprises‐or at least continued sales growth (the exact opposite is generally true, too).

Successful stock investing involves buying low and selling high, so stock valuation is an important consideration for stock selection. Buying stocks that are going to go up typically means buying stocks that are undervalued in the first place, although momentum investors may argue that point.

These 2 key factors, when combined with the above, provide a holistic view into a particular stock. Further, by joining A+ Investor you can see whether Regions Financial Corporation, Banco Santander and S.A. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Regions Financial Corporation, Banco Santander or S.A. Stock?

Overall, Regions Financial Corporation stock has a Growth Score of 77, Momentum Score of 51 and Quality Score of 30.

Banco Santander, S.A. stock has a Growth Score of 64, Momentum Score of 80 and Quality Score of 19.

Comparing Regions Financial Corporation, Banco Santander and S.A.’s grades, scores and metrics can act as a solid basis to determine whether they may be a good investment or not. You’ll also want to look at your portfolio’s asset allocation as well as your risk tolerance and financial goals to see if either of these stocks would make a good fit for you. AAII can help you figure out which investments align with your individual needs and preferences.

Investors are encouraged to do their own due diligence and research. In this way, individuals can effectively become managers of their own assets‐without having to rely on others for financial independence. You can count on AAII for timeless articles on financial planning and stock-picking, unbiased research and actionable analysis.

A+ Investor adds to our qualitative teaching with a powerful data suite to help you whittle down investment choices to find stocks, exchange-traded funds (ETFs) or mutual funds that meet your needs.

AAII Disclaimer

We make no representations or warranties that any investor will, or is likely to, achieve profits similar to those shown, because past, hypothetical or simulated performance is not necessarily indicative of future results. Before making an investment decision, you should consider your circumstances and whether the information on our content is applicable to your situation. This information was prepared in good faith, and we accept no liability for any errors or omissions. The full disclaimer can be read here.