BLK vs STT

For growth investors, State Street Corporation (STT) is the stronger pick with 19.

6% revenue growth year-over-year, versus 14. 3% for BlackRock, Inc. (BLK). State Street Corporation (STT) offers the better valuation at 18. 4x trailing P/E (12. 2x forward), making it the more compelling value choice. Analysts rate BlackRock, Inc. (BLK) a "Buy" — based on 33 analyst ratings — the highest consensus in this comparison. The "better buy" depends entirely on your goals: growth investors should weight revenue trajectory, value investors should weight P/E and PEG, and income investors should weight dividend yield and streak.

On trailing P/E, State Street Corporation (STT) is the cheapest at 18.

4x versus BlackRock, Inc. at 25. 6x. On forward P/E, State Street Corporation is actually cheaper at 12. 2x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: State Street Corporation wins at 1. 38x versus BlackRock, Inc. 's 2. 49x — a reasonable growth-adjusted valuation.

Over the past 5 years, State Street Corporation (STT) delivered a total return of +88.

8%, compared to +35. 2% for BlackRock, Inc. (BLK). Over 10 years, the gap is even starker: BLK returned +246. 4% versus STT's +191. 1%. Past returns do not guarantee future results, and the stock with the higher historical return may already have its best growth priced in.

By beta (market sensitivity over 5 years), State Street Corporation (STT) is the lower-risk stock at 1.

19β versus BlackRock, Inc. 's 1. 28β — meaning BLK is approximately 8% more volatile than STT relative to the S&P 500. On balance sheet safety, BlackRock, Inc. (BLK) carries a lower debt/equity ratio of 29% versus 145% for State Street Corporation — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), State Street Corporation (STT) is pulling ahead at 19.

6% versus 14. 3% for BlackRock, Inc. (BLK). On earnings-per-share growth, the picture is similar: State Street Corporation grew EPS 47. 1% year-over-year, compared to 15. 1% for BlackRock, Inc.. Higher growth typically commands a higher valuation multiple — check whether the premium P/E or P/S is justified by the growth rate using the PEG ratio.

BlackRock, Inc.

(BLK) is the more profitable company, earning 31. 2% net margin versus 12. 2% for State Street Corporation — meaning it keeps 31. 2% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: BLK leads at 37. 1% versus 15. 5% for STT. At the gross margin level — before operating expenses — STT leads at 58. 5%, reflecting greater pricing power or product mix advantage. Stronger margins indicate durable pricing power, lower cost of revenue, or higher mix of software/services. They are one of the clearest signs of business quality.

The PEG ratio (forward P/E divided by expected earnings growth rate) is the most precise measure of undervaluation relative to growth potential.

By this metric, State Street Corporation (STT) is the more undervalued stock at a PEG of 1. 38x versus BlackRock, Inc. 's 2. 49x. A PEG below 1. 5 suggests fair-to-attractive pricing relative to expected growth. On forward earnings alone, State Street Corporation (STT) trades at 12. 2x forward P/E versus 20. 2x for BlackRock, Inc. — 8. 0x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for BLK: 22. 2% to $1311. 78.

All stocks in this comparison pay dividends.

State Street Corporation (STT) offers the highest yield at 2. 3%, versus 1. 9% for BlackRock, Inc. (BLK).

For long-horizon retirement investors, State Street Corporation (STT) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 1.

19), 2. 3% yield, +191. 1% 10Y return). Both have compounded well over 10 years (STT: +191. 1%, BLK: +246. 4%), confirming both are viable long-term holds — but the lower-volatility option typically results in less emotional selling during corrections. Retirement portfolios generally favour predictability over maximum returns. Consult a financial advisor before making allocation decisions.

Both stocks operate in the Financial Services sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

In terms of investment character: BLK is a mid-cap quality compounder stock; STT is a mid-cap high-growth stock. These fundamental differences mean investors should not choose between them on a single metric — the "better stock" depends entirely on which of these characteristics aligns with your investment strategy.