Sifting through countless of stocks in the Capital Markets 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 State Street Corporation, BlackRock 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 State Street Corporation, BlackRock and Inc. compare based on key financial metrics to determine which better meets your investment needs.

About State Street Corporation, BlackRock and Inc.

State Street Corporation provides various financial products and services to institutional investors. It offers custody, accounting, and fund administration services for traditional and alternative assets, as well as multi-asset class investments; recordkeeping, client reporting, and investment book of record, transaction management, loans, cash, derivatives, and collateral services; investor services operations outsourcing; performance, risk, and compliance analytics; financial data management to support institutional investors; foreign exchange, brokerage, and other trading services; securities finance, such as prime services products; and deposit and short-term investment facilities. The company also provides the State Street Alpha platform that combines portfolio management, trading and execution, analytics and compliance tools, and advanced data aggregation and integration with other industry platforms and providers; front-office technology that automates and simplifies the institutional investment process comprising portfolio management and risk analytics, trading, and post-trade settlement with integrated compliance and managed data; investment management solutions; and portfolio management, trading compliance, and manager/sponsor communication. In addition, it offers investment management solutions, such as strategies across equity, fixed income, cash, multi-asset, and alternatives; and ETFs, custom indexed, managed funds, and mandates. The company provides its products and services to mutual funds, collective investment funds and other investment pools, corporate and public retirement plans, insurance companies, wealth managers, investment managers, foundations, and endowments. The company was founded in 1792 and is headquartered in Boston, Massachusetts.

BlackRock, Inc. is a publicly owned investment manager. The firm primarily provides its services to institutional, intermediary, and individual investors including corporate, public, union, and industry pension plans, insurance companies, third-party mutual funds, endowments, public institutions, governments, foundations, charities, sovereign wealth funds, corporations, official institutions, and banks. It also provides global risk management and advisory services. The firm manages separate client-focused equity, fixed income, and balanced portfolios. It also launches and manages open-end and closed-end mutual funds, offshore funds, unit trusts, and alternative investment vehicles including structured funds. The firm launches equity, fixed income, balanced, and real estate mutual funds. It also launches equity, fixed income, balanced, currency, commodity, and multi-asset exchange traded funds. The firm also launches and manages hedge funds. It invests in the public equity, fixed income, real estate, currency, commodity, and alternative markets across the globe. The firm primarily invests in growth and value stocks of small-cap, mid-cap, SMID-cap, large-cap, and multi-cap companies. It also invests in dividend-paying equity securities. The firm invests in investment grade municipal securities, government securities including securities issued or guaranteed by a government or a government agency or instrumentality, corporate bonds, and asset-backed and mortgage-backed securities. It employs fundamental and quantitative analysis with a focus on bottom-up and top-down approach to make its investments. The firm employs liquidity, asset allocation, balanced, real estate, and alternative strategies to make its investments. In real estate sector, it seeks to invest in Poland and Germany. The firm benchmarks the performance of its portfolios against various S&P, Russell, Barclays, MSCI, Citigroup, and Merrill Lynch indices. BlackRock, Inc. was founded in 1988 and is based in New York, New York with additional offices in Atlanta, Georgia; Boston, Massachusetts; Chicago, Illinois; Dallas, Texas; Denver, Colorado; Greenwich, Connecticut; Houston, Texas; Miami, Florida; Newport Beach, California; Palo Alto, California; Philadelphia, Pennsylvania; Princeton, New Jersey; San Francisco, California; Santa Monica, California; Seattle, Washington; Washington, DC; West Palm Beach, Florida; Wilmington, Delaware; Mexico; Canada; South Africa; Netherlands; Greece; Serbia; Belgium; Hungary; Denmark; Ireland; Scotland; Germany; Switzerland; England; Luxembourg; Spain; Italy; France; Sweden; Austria; India; China; Australia; Hong Kong; South Korea; Singapore; Taiwan; Japan; Colombia; Argentina; Peru; Chile; Brazil; UAE; Saudi Arabia; Israel.

Latest Capital Markets and State Street Corporation, BlackRock, Inc. Stock News

As of April 23, 2026, State Street Corporation had a $41.9 billion market capitalization, compared to the Capital Markets median of $3.5 million. State Street Corporation’s stock is up 17% in 2026, up 3.8% in the previous five trading days and up 80.4% in the past year.

Currently, State Street Corporation’s price-earnings ratio is 16.1. State Street Corporation’s trailing 12-month revenue is $13.9 billion with a 21.3% net profit margin. Year-over-year quarterly sales growth most recently was 7.6%. Analysts expect adjusted earnings to reach $12.396 per share for the current fiscal year. State Street Corporation currently has a 2.2% dividend yield.

As of April 23, 2026, BlackRock, Inc. had a $163.7 billion market cap, putting it in the 98th percentile of all stocks. BlackRock, Inc.’s stock is down 1.9% in 2026, down 0.2% in the previous five trading days and up 18.74% in the past year.

Currently, BlackRock, Inc.’s price-earnings ratio is 29.8. BlackRock, Inc.’s trailing 12-month revenue is $24.2 billion with a 24.4% net profit margin. Year-over-year quarterly sales growth most recently was 23.4%. Analysts expect adjusted earnings to reach $53.102 per share for the current fiscal year. BlackRock, Inc. currently has a 2.2% dividend yield.

How We Compare State Street Corporation, BlackRock 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 State Street Corporation, BlackRock and Inc.’s stock grades to see how they measure up against one another.

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State Street Corporation, BlackRock and Inc. Stock Value Grades

Company	Ticker	Value
State Street Corporation	STT	B
BlackRock, Inc.	BLK	F

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 Value Grade derives from a stock’s value score. The Value Score is the percentile rank of the average of the percentile ranks of the price-to-sales ratio, price-earnings ratio, enterprise-value-to-EBITDA (EV/EBITDA) ratio, shareholder yield, price-to-book-value ratio and price-to-free-cash-flow ratio. The score is variable, meaning it can consider all six ratios or, should any of the six ratios not be valid, the remaining ratios that are valid. To be assigned a Value Score, stocks must have a valid (non-null) ratio and corresponding ranking for at least two of the six valuation ratios.

Stocks with a Value Score from 81 to 100 are considered deep value, those with a score between 61 and 80 are a good value and so on.

State Street Corporation has a Value Score of 78, which is Value. BlackRock, Inc. has a Value Score of 18, which is Ultra Expensive.

The Value Stock Winner: State Street Corporation

As you can clearly see from the Value Grade breakdown above, State Street Corporation is considered to have better value than BlackRock, Inc.. For investors who focus solely on a company’s valuation, State Street Corporation could be a good stock to add to their portfolio. However, it’s important for investors to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

State Street Corporation, BlackRock and Inc. Growth Grades

Company	Ticker	Growth
State Street Corporation	STT	D
BlackRock, Inc.	BLK	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.

State Street Corporation has a Growth Score of 38, which is Weak. BlackRock, Inc. has a Growth Score of 78, which is Strong.

The Growth Grade Winner: BlackRock, Inc.

As you can clearly see from the Growth Grade breakdown above, BlackRock, Inc. has a more attractive growth grade than State Street Corporation. For investors who focus solely on how a company is growing relative to other companies in the same industry, BlackRock, Inc. could be a good stock to add to their portfolio. However, it’s important for investors to analyze multiple factors based on a wide range of metrics before deciding whether to buy.

State Street Corporation, BlackRock and Inc.’s Quality Grades

Company	Ticker	Quality
State Street Corporation	STT	D
BlackRock, Inc.	BLK	D

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.

State Street Corporation has a Quality Score of 31, which is Weak. BlackRock, Inc. has a Quality Score of 39, which is Weak.

The Quality Stock Winner: No Clear Winner

Neither State Street Corporation, BlackRock or Inc. 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 State Street Corporation, BlackRock or Inc. is the better investment when it comes to quality.

Other State Street Corporation, BlackRock and Inc. Grades

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

Momentum grades help 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.

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).

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 State Street Corporation, BlackRock and Inc. pass any of our 60+ stock screens that have outperformed the market since their creation.

So, Which Is the Better Investment, State Street Corporation, BlackRock or Inc. Stock?

Overall, State Street Corporation stock has a Value Score of 78, Growth Score of 38 and Quality Score of 31.

BlackRock, Inc. stock has a Value Score of 18, Growth Score of 78 and Quality Score of 39.

Comparing State Street Corporation, BlackRock 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.