The short version

From the latest prices and each company's SEC filings. Who's ahead on each measure, not which to buy.

  • BlackRock is the larger company, worth $163.5B, about 3.4 times State Street.
  • BlackRock grew revenue faster over the last year (+30.6% vs +17.4%).
  • On earnings, State Street is the cheaper stock (17.7x vs 26.5x).
  • BlackRock's price assumes faster free cash flow growth: about 16% a year, against -16% for State Street (reverse DCF).

Side by side

The stronger figure is shaded where higher (or, for valuation multiples, lower) reads as better. How the implied growth works.

MeasureBLKSTT
Market cap$163.5B$48.2B
Share price$1,065.35$174.96
Revenue (last fiscal year)$24.2B$13.9B
Free cash flow (last fiscal year)$3.6B$10.8B
Revenue growth, last year+30.6%+17.4%
Revenue growth per year, last 5 fiscal years+5.7%+3.8%
Operating margin32.6%—
Net margin24.1%22.9%
Return on equity11.4%12.2%
P/E (trailing)26.5x17.7x
Price / free cash flow46.0x11.2x
EV / EBITDA14.8x—
FCF growth the price implies15.9%-15.8%
Dividend yield2.0%1.8%
Debt / equity1.93x13.8x
Fundamental gradeBB
Superinvestors holding it108
Insider purchases, last 12 months88

Results from SEC filings

Revenue and free cash flow by fiscal year, from each company's 10-K filings.

BlackRock

YearRevenueFree cash flowOp. margin
2021$19.4B$4.6B38.5%
2022$17.9B$4.4B35.7%
2023$17.9B$3.8B35.1%
2024$20.4B$4.7B37.1%
2025$24.2B$3.6B29.1%

State Street

YearRevenueFree cash flowOp. margin
2021$12.0B-$7.5B—
2022$12.1B$11.2B—
2023$11.9B-$126M—
2024$13.0B-$14.1B—
2025$13.9B$10.8B—

Where the revenue comes from

BlackRock · by products, 2025

Investment Advisory, Administration Fees and Securities Lending Revenue$19.2B79%
Technology Services and Subscription Revenue$2.0B8%
Investment Advisory Performance Fees$1.4B6%
Distribution Fees$1.4B6%
Advisory and Other Revenue$277M1%

State Street · by segments, 2025

Investment Servicing$11.3B81%
Investment Management$2.6B19%
Compare them in fullFifteen years of statements, quarterly results, DCF and IRR models, and any number of peers side by side.
Open BLK in Investingly

Questions

Which is bigger, BlackRock or State Street?

BlackRock (BLK), at $163.5B against $48.2B.

Is BLK or STT cheaper?

By trailing P/E, State Street (17.7x) is cheaper than BlackRock (26.5x). A lower multiple can also mean the market expects less growth.

Which grows faster, BLK or STT?

BlackRock: revenue grew +30.6% over the last year, against +17.4%.

Prices and ratios as of the last daily update; statements from SEC filings. Information only, not investment advice.