SEIC vs BLK

For growth investors, BlackRock, Inc.

(BLK) is the stronger pick with 14. 3% revenue growth year-over-year, versus 8. 1% for SEI Investments Company (SEIC). SEI Investments Company (SEIC) offers the better valuation at 16. 2x trailing P/E (15. 4x forward), making it the more compelling value choice. Analysts rate SEI Investments Company (SEIC) a "Buy" — based on 14 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, SEI Investments Company (SEIC) is the cheapest at 16.

2x versus BlackRock, Inc. at 25. 6x. On forward P/E, SEI Investments Company is actually cheaper at 15. 4x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: SEI Investments Company wins at 1. 15x versus BlackRock, Inc. 's 2. 49x — a reasonable growth-adjusted valuation.

Over the past 5 years, SEI Investments Company (SEIC) delivered a total return of +51.

0%, compared to +35. 2% for BlackRock, Inc. (BLK). Over 10 years, the gap is even starker: BLK returned +246. 4% versus SEIC's +106. 6%. 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), SEI Investments Company (SEIC) is the lower-risk stock at 0.

85β versus BlackRock, Inc. 's 1. 28β — meaning BLK is approximately 52% more volatile than SEIC relative to the S&P 500. On balance sheet safety, SEI Investments Company (SEIC) carries a lower debt/equity ratio of 0% versus 29% for BlackRock, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), BlackRock, Inc.

(BLK) is pulling ahead at 14. 3% versus 8. 1% for SEI Investments Company (SEIC). On earnings-per-share growth, the picture is similar: SEI Investments Company grew EPS 27. 7% 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 31. 1% for SEI Investments Company — 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 27. 3% for SEIC. At the gross margin level — before operating expenses — SEIC leads at 59. 2%, 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, SEI Investments Company (SEIC) is the more undervalued stock at a PEG of 1. 15x versus BlackRock, Inc. 's 2. 49x. A PEG below 1. 5 suggests fair-to-attractive pricing relative to expected growth. On forward earnings alone, SEI Investments Company (SEIC) trades at 15. 4x forward P/E versus 20. 2x for BlackRock, Inc. — 4. 8x 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.

BlackRock, Inc. (BLK) offers the highest yield at 1. 9%, versus 1. 1% for SEI Investments Company (SEIC).

For long-horizon retirement investors, SEI Investments Company (SEIC) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0.

85), 1. 1% yield, +106. 6% 10Y return). Both have compounded well over 10 years (SEIC: +106. 6%, 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: SEIC is a mid-cap deep-value stock; BLK is a mid-cap quality compounder 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.