J vs ACM vs PWR vs KBR vs PRIM

For growth investors, Quanta Services, Inc.

(PWR) is the stronger pick with 19. 8% revenue growth year-over-year, versus 0. 2% for Aecom (ACM). KBR, Inc. (KBR) offers the better valuation at 10. 0x trailing P/E (8. 4x forward), making it the more compelling value choice. Analysts rate Jacobs Solutions Inc. (J) a "Buy" — based on 38 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, KBR, Inc.

(KBR) is the cheapest at 10. 0x versus Quanta Services, Inc. at 112. 6x. On forward P/E, KBR, Inc. is actually cheaper at 8. 4x. The PEG ratio (P/E divided by earnings growth rate) is the most growth-adjusted single valuation metric: Primoris Services Corporation wins at 1. 19x versus Quanta Services, Inc. 's 3. 19x — a reasonable growth-adjusted valuation.

Over the past 5 years, Quanta Services, Inc.

(PWR) delivered a total return of +710. 7%, compared to -20. 8% for Jacobs Solutions Inc. (J). Over 10 years, the gap is even starker: PWR returned +31. 8% versus J's -19. 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), KBR, Inc.

(KBR) is the lower-risk stock at 0. 80β versus Primoris Services Corporation's 1. 37β — meaning PRIM is approximately 70% more volatile than KBR relative to the S&P 500. On balance sheet safety, Quanta Services, Inc. (PWR) carries a lower debt/equity ratio of 13% versus 2% for KBR, Inc. — giving it more financial flexibility in a downturn.

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

(PWR) is pulling ahead at 19. 8% versus 0. 2% for Aecom (ACM). On earnings-per-share growth, the picture is similar: Primoris Services Corporation grew EPS 51. 7% year-over-year, compared to -62. 3% for Jacobs Solutions Inc.. Over a 3-year CAGR, PRIM leads at 19. 7% 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.

KBR, Inc.

(KBR) is the more profitable company, earning 5. 3% net margin versus 2. 4% for Jacobs Solutions Inc. — meaning it keeps 5. 3% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: KBR leads at 7. 3% versus 5. 5% for PRIM. At the gross margin level — before operating expenses — J leads at 24. 8%, 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, Primoris Services Corporation (PRIM) is the more undervalued stock at a PEG of 1. 19x versus Quanta Services, Inc. 's 3. 19x. A PEG below 1. 5 suggests fair-to-attractive pricing relative to expected growth. On forward earnings alone, KBR, Inc. (KBR) trades at 8. 4x forward P/E versus 55. 0x for Quanta Services, Inc. — 46. 6x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for ACM: 79. 6% to $125. 63.

In this comparison, KBR (2.

0% yield), ACM (1. 4% yield), J (1. 1% yield), PRIM (0. 3% yield) pay a dividend. PWR does not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, KBR, Inc.

(KBR) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (low volatility (β 0. 80), 2. 0% yield, +151. 7% 10Y return). Both have compounded well over 10 years (KBR: +151. 7%, PWR: +31. 8%), 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: J is a mid-cap quality compounder stock; ACM is a small-cap deep-value stock; PWR is a mid-cap high-growth stock; KBR is a small-cap deep-value stock; PRIM is a small-cap high-growth stock. J, ACM, KBR pay a dividend while PWR, PRIM do not, making them suitable for different income and tax situations. 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.