NSP vs BBSI vs PAYX vs ADP

For growth investors, Barrett Business Services, Inc.

(BBSI) is the stronger pick with 8. 4% revenue growth year-over-year, versus 3. 5% for Insperity, Inc. (NSP). Barrett Business Services, Inc. (BBSI) offers the better valuation at 14. 3x trailing P/E (17. 1x forward), making it the more compelling value choice. Analysts rate Barrett Business Services, Inc. (BBSI) a "Buy" — based on 5 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, Barrett Business Services, Inc.

(BBSI) is the cheapest at 14. 3x versus Automatic Data Processing, Inc. at 21. 5x. On forward P/E, Insperity, Inc. is actually cheaper at 15. 3x — notably different from the trailing picture, reflecting expected earnings growth. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Barrett Business Services, Inc. wins at 1. 25x versus Paychex, Inc. 's 2. 01x — a reasonable growth-adjusted valuation.

Over the past 5 years, Barrett Business Services, Inc.

(BBSI) delivered a total return of +60. 4%, compared to -48. 6% for Insperity, Inc. (NSP). Over 10 years, the gap is even starker: BBSI returned +326. 4% versus NSP's +59. 4%. 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), Automatic Data Processing, Inc.

(ADP) is the lower-risk stock at 0. 37β versus Insperity, Inc. 's 1. 06β — meaning NSP is approximately 182% more volatile than ADP relative to the S&P 500. On balance sheet safety, Barrett Business Services, Inc. (BBSI) carries a lower debt/equity ratio of 10% versus 9% for Insperity, Inc. — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Barrett Business Services, Inc.

(BBSI) is pulling ahead at 8. 4% versus 3. 5% for Insperity, Inc. (NSP). On earnings-per-share growth, the picture is similar: Automatic Data Processing, Inc. grew EPS 9. 7% year-over-year, compared to -107. 5% for Insperity, Inc.. Over a 3-year CAGR, ADP leads at 7. 6% annualised revenue growth. 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.

Paychex, Inc.

(PAYX) is the more profitable company, earning 29. 7% net margin versus -0. 1% for Insperity, Inc. — meaning it keeps 29. 7% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: PAYX leads at 39. 6% versus -0. 1% for NSP. At the gross margin level — before operating expenses — PAYX leads at 72. 4%, 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, Barrett Business Services, Inc. (BBSI) is the more undervalued stock at a PEG of 1. 25x versus Paychex, Inc. 's 2. 01x. A PEG below 1. 5 suggests fair-to-attractive pricing relative to expected growth. On forward earnings alone, Insperity, Inc. (NSP) trades at 15. 3x forward P/E versus 19. 4x for Automatic Data Processing, Inc. — 4. 1x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for BBSI: 53. 8% to $46. 00.

All stocks in this comparison pay dividends.

Insperity, Inc. (NSP) offers the highest yield at 7. 2%, versus 1. 1% for Barrett Business Services, Inc. (BBSI).

For long-horizon retirement investors, Automatic Data Processing, Inc.

(ADP) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 37), 2. 7% yield, +192. 5% 10Y return). Both have compounded well over 10 years (ADP: +192. 5%, NSP: +59. 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 Industrials sector, making this a peer-level intra-sector comparison — the same macro tailwinds and headwinds will affect both.

In terms of investment character: NSP is a small-cap income-oriented stock; BBSI is a small-cap deep-value stock; PAYX is a mid-cap income-oriented stock; ADP 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.