TPC vs STRL vs PWR vs PRIM

For growth investors, Tutor Perini Corporation (TPC) is the stronger pick with 28.

1% revenue growth year-over-year, versus 17. 7% for Sterling Infrastructure, Inc. (STRL). Primoris Services Corporation (PRIM) offers the better valuation at 21. 5x trailing P/E (20. 2x forward), making it the more compelling value choice. Analysts rate Tutor Perini Corporation (TPC) a "Buy" — based on 13 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 21.

5x versus Quanta Services, Inc. at 110. 4x. On forward P/E, Primoris Services Corporation is actually cheaper at 20. 2x. 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 Quanta Services, Inc. 's 3. 33x — a reasonable growth-adjusted valuation.

Over the past 5 years, Sterling Infrastructure, Inc.

(STRL) delivered a total return of +34. 0%, compared to +234. 4% for Primoris Services Corporation (PRIM). Over 10 years, the gap is even starker: STRL returned +184. 3% versus TPC's +327. 2%. 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), Quanta Services, Inc.

(PWR) is the lower-risk stock at 1. 32β versus Sterling Infrastructure, Inc. 's 2. 89β — meaning STRL is approximately 119% more volatile than PWR relative to the S&P 500. On balance sheet safety, Quanta Services, Inc. (PWR) carries a lower debt/equity ratio of 13% versus 76% for Primoris Services Corporation — giving it more financial flexibility in a downturn.

By revenue growth (latest reported year), Tutor Perini Corporation (TPC) is pulling ahead at 28.

1% versus 17. 7% for Sterling Infrastructure, Inc. (STRL). On earnings-per-share growth, the picture is similar: Tutor Perini Corporation grew EPS 148. 2% year-over-year, compared to 12. 8% for Quanta Services, 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.

Sterling Infrastructure, Inc.

(STRL) is the more profitable company, earning 11. 7% net margin versus 1. 5% for Tutor Perini Corporation — meaning it keeps 11. 7% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: STRL leads at 16. 6% versus 4. 2% for TPC. At the gross margin level — before operating expenses — STRL leads at 22. 1%, 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 Quanta Services, Inc. 's 3. 33x. A PEG below 1. 5 suggests fair-to-attractive pricing relative to expected growth. On forward earnings alone, Primoris Services Corporation (PRIM) trades at 20. 2x forward P/E versus 57. 4x for Quanta Services, Inc. — 37. 2x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for PRIM: 52. 4% to $164. 63.

In this comparison, PRIM (0.

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

For long-horizon retirement investors, Primoris Services Corporation (PRIM) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding (+387.

5% 10Y return). Sterling Infrastructure, Inc. (STRL) carries a higher beta of 2. 89 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (PRIM: +387. 5%, STRL: +184. 3%), 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.

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.