MG vs PRIM vs MYRG vs MTZ vs PWR

For growth investors, Quanta Services, Inc.

(PWR) is the stronger pick with 19. 8% revenue growth year-over-year, versus -0. 8% for Mistras Group, Inc. (MG). Primoris Services Corporation (PRIM) offers the better valuation at 20. 9x trailing P/E (20. 2x forward), making it the more compelling value choice. Analysts rate Primoris Services Corporation (PRIM) a "Buy" — based on 23 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, Primoris Services Corporation (PRIM) is the cheapest at 20.

9x versus Quanta Services, Inc. at 109. 5x. On forward P/E, Mistras Group, Inc. is actually cheaper at 17. 1x — 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: Primoris Services Corporation wins at 1. 10x versus MasTec, Inc. 's 15. 85x — a reasonable growth-adjusted valuation.

Over the past 5 years, Quanta Services, Inc.

(PWR) delivered a total return of +642. 0%, compared to +74. 8% for Mistras Group, Inc. (MG). Over 10 years, the gap is even starker: PWR returned +31. 2% versus MG's -24. 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), Mistras Group, Inc.

(MG) is the lower-risk stock at 1. 14β versus MYR Group Inc. 's 1. 65β — meaning MYRG is approximately 44% more volatile than MG relative to the S&P 500. On balance sheet safety, Quanta Services, Inc. (PWR) carries a lower debt/equity ratio of 13% versus 103% for Mistras Group, 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. 8% for Mistras Group, Inc. (MG). On earnings-per-share growth, the picture is similar: MYR Group Inc. grew EPS 311. 5% year-over-year, compared to -11. 7% for Mistras Group, 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.

Primoris Services Corporation (PRIM) is the more profitable company, earning 3.

6% net margin versus 2. 3% for Mistras Group, Inc. — meaning it keeps 3. 6% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: MG leads at 7. 4% versus 4. 4% for MYRG. At the gross margin level — before operating expenses — MG leads at 26. 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. 10x versus MasTec, Inc. 's 15. 85x. A PEG below 1. 5 suggests fair-to-attractive pricing relative to expected growth. On forward earnings alone, Mistras Group, Inc. (MG) trades at 17. 1x forward P/E versus 53. 5x for Quanta Services, Inc. — 36. 4x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for PRIM: 57. 1% to $164. 63.

In this comparison, PRIM (0.

3% yield) pays a dividend. MG, MYRG, MTZ, PWR do not pay a meaningful dividend and should not be held primarily for income.

For long-horizon retirement investors, MasTec, Inc.

(MTZ) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+1762% 10Y return). Both have compounded well over 10 years (MTZ: +1762%, PWR: +31. 2%), 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: MG is a small-cap quality compounder stock; PRIM is a small-cap high-growth stock; MYRG is a small-cap quality compounder stock; MTZ is a mid-cap high-growth stock; PWR 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.