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 Mizuho Financial Group, Inc., Sumitomo Mitsui Financial Group or Inc. 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 Mizuho Financial Group, Inc., Sumitomo Mitsui Financial Group and Inc. compare based on key financial metrics to determine which better meets your investment needs.

About Mizuho Financial Group, Inc., Sumitomo Mitsui Financial Group and Inc.

Mizuho Financial Group, Inc., together with its subsidiaries, engages in banking, trust banking, securities, and other businesses related to financial services in Japan, the Americas, Europe, Asia/Oceania, and internationally. The company offers finance solutions, including corporate, syndicated, acquisition, real estate, project, ECA, and other structured finance solutions; financing and advisory solutions for capital markets comprising debt, loan, and equity capital markets; corporate finance advisory services; treasury solutions that include deposit, cash management, and trade finance; and market solutions for foreign exchange, derivatives, futures, equities, and fixed income. It also provides asset management services; research services, such as industry, macroeconomic, equity, and fixed income research; and institutional services, including markets, JPY clearing, custody, fund administration, and securities lending services. The company was founded in 1873 and is headquartered in Chiyoda, Japan.

Sumitomo Mitsui Financial Group, Inc., together with its subsidiaries, provides banking, leasing, securities, consumer finance, and other services in Japan, the Americas, Europe, the Middle East, Asia, and Oceania. It operates through Wholesale Business Unit, Retail Business Unit, Global Business Unit, and Global Markets Business Unit segments. The Wholesale Business Unit segment offers bilateral loans, syndicated loans, commitment lines, structured finance, project finance, and nonrecourse loans; deposits and investment trusts; risk hedging services, including forward exchange contracts and derivatives; stand-by credit, and performance bond and credit guarantee services; remittance, cash management, trade finance, and supply chain finance services; merger and acquisition, and other advisory services; digital services; and equipment, operating and leveraged leasing services. The Retail Business Unit segment provides wealth management services, such as time deposits and foreign currency deposits, investment trusts, equities, bonds, insurance products, and trust services; credit card, installment, and transaction services; and consumer finance and housing loans. The Global Business Unit segment offers loans, deposits, clearing, trade finance, project finance, loan syndication, derivatives, and global cash management services; equity and fixed income sales and trading, and underwriting services; and construction machinery, transportation equipment, industrial machinery, medical equipment, and other leasing services. The Global Markets Business Unit segment provides asset liability management and portfolio management, foreign currency funding, and sales and trading services. The company offers system development, data processing, management consulting, economic research, and asset management services. Sumitomo Mitsui Financial Group, Inc. was incorporated in 2002 and is headquartered in Tokyo, Japan.

Latest Banks and Mizuho Financial Group, Inc., Sumitomo Mitsui Financial Group, Inc. Stock News

As of September 1, 2026, Mizuho Financial Group, Inc. had a $131.5 billion market capitalization, compared to the Banks median of $730.8 million. Mizuho Financial Group, Inc.’s stock is NA in 2026, NA in the previous five trading days and up 62.73% in the past year.

Currently, Mizuho Financial Group, Inc.’s price-earnings ratio is 3.1. Mizuho Financial Group, Inc.’s trailing 12-month revenue is $29.2 billion with a 29.1% net profit margin. Year-over-year quarterly sales growth most recently was 19.9%. There are no analysts providing consensus earnings estimates for the current fiscal year. Mizuho Financial Group, Inc. currently has a 1.7% dividend yield.

Currently, Sumitomo Mitsui Financial Group, Inc.’s price-earnings ratio is 14.0. Sumitomo Mitsui Financial Group, Inc.’s trailing 12-month revenue is $27.5 billion with a 27.8% net profit margin. As of September 1, 2026, Sumitomo Mitsui Financial Group, Inc. has not reported significant year-over-year quarterly sales. There are no analysts providing consensus earnings estimates for the current fiscal year. Sumitomo Mitsui Financial Group, Inc. currently has a 2.2% dividend yield.

How We Compare Mizuho Financial Group, Inc., Sumitomo Mitsui Financial Group and Inc. 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 Mizuho Financial Group, Inc., Sumitomo Mitsui Financial Group and Inc.’s stock grades to see how they measure up against one another.

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Mizuho Financial Group, Inc., Sumitomo Mitsui Financial Group and Inc. Growth Grades

Company	Ticker	Growth
Mizuho Financial Group, Inc.	MFG	F
Sumitomo Mitsui Financial Group, Inc.	SMFG	F

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.

Mizuho Financial Group, Inc. has a Growth Score of 20, which is Very Weak. Sumitomo Mitsui Financial Group, Inc. has a Growth Score of 10, which is Very Weak.

The Growth Stock Winner: No Clear Winner

Neither Mizuho Financial Group, Inc., Sumitomo Mitsui Financial Group or Inc. has a high enough Growth 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 Mizuho Financial Group, Inc., Sumitomo Mitsui Financial Group or Inc. is the better investment when it comes to sustainable growth.

Mizuho Financial Group, Inc., Sumitomo Mitsui Financial Group and Inc.’s Momentum Grades

Company	Ticker	Momentum
Mizuho Financial Group, Inc.	MFG	B
Sumitomo Mitsui Financial Group, Inc.	SMFG	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%.

Mizuho Financial Group, Inc. has a Momentum Score of 80, which is Strong. Sumitomo Mitsui Financial Group, Inc. has a Momentum Score of 78, which is Strong.

The Momentum Grade Winner: It’s a Tie!

Looking at the Momentum Grade breakdown above, both Mizuho Financial Group, Inc., Sumitomo Mitsui Financial Group and Inc. have a grade of B. For those who focus solely on a company’s momentum, further research will need to be conducted into both companies to see if they fit your individual needs as an investor.

Mizuho Financial Group, Inc., Sumitomo Mitsui Financial Group and Inc.’s Estimate Revisions Grades

Company	Ticker	Earnings Estimate
Mizuho Financial Group, Inc.	MFG	na
Sumitomo Mitsui Financial Group, Inc.	SMFG	na

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

Estimate revisions offer an indication of what analysts are thinking about the short-term prospects of a firm. Estimate revisions are based on the statistical significance of a firm’s last two quarterly earnings surprises and the percentage change in its consensus estimate for the current fiscal year over the past month and past three months.

Mizuho Financial Group, Inc. does not have a meaningful Earnings Estimate Score. Sumitomo Mitsui Financial Group, Inc. does not have a meaningful Earnings Estimate Score.

The Earnings Estimate Revisions Stock Winner: No Clear Winner

Neither Mizuho Financial Group, Inc., Sumitomo Mitsui Financial Group or Inc. has an Earnings Estimate Revisions Grade that could be considered a “winner.” Investors 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 Mizuho Financial Group, Inc., Sumitomo Mitsui Financial Group or Inc. is the better investment when it comes to estimate revisions.

Other Mizuho Financial Group, Inc., Sumitomo Mitsui Financial Group and Inc. Grades

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

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.

AAII’s A+ Investor Quality Grade comes from the ranking of key metrics. Specifically, the quality grade is the percentile rank of the composite 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 F-Score.

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 Mizuho Financial Group, Inc., Sumitomo Mitsui Financial Group and Inc. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, Mizuho Financial Group, Inc., Sumitomo Mitsui Financial Group or Inc. Stock?

Overall, Mizuho Financial Group, Inc. stock has a Growth Score of 20, Momentum Score of 80 and Estimate Revisions Score of .

Sumitomo Mitsui Financial Group, Inc. stock has a Growth Score of 10, Momentum Score of 78 and Estimate Revisions Score of .

Comparing Mizuho Financial Group, Inc., Sumitomo Mitsui Financial Group and Inc.’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.