CTOS vs PWR

For growth investors, Quanta Services, Inc.

(PWR) is the stronger pick with 19. 8% revenue growth year-over-year, versus 7. 9% for Custom Truck One Source, Inc. (CTOS). Quanta Services, Inc. (PWR) offers the better valuation at 115. 5x trailing P/E (60. 0x forward), making it the more compelling value choice. Analysts rate Custom Truck One Source, Inc. (CTOS) a "Buy" — based on 7 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 forward P/E, Quanta Services, Inc.

is actually cheaper at 60. 0x.

Over the past 5 years, Quanta Services, Inc.

(PWR) delivered a total return of +698. 2%, compared to -4. 5% for Custom Truck One Source, Inc. (CTOS). Over 10 years, the gap is even starker: PWR returned +32. 3% versus CTOS's +1. 7%. 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. 30β versus Custom Truck One Source, Inc. 's 1. 69β — meaning CTOS is approximately 30% 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 3% for Custom Truck One Source, 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 7. 9% for Custom Truck One Source, Inc. (CTOS). On earnings-per-share growth, the picture is similar: Quanta Services, Inc. grew EPS 12. 8% year-over-year, compared to -16. 7% for Custom Truck One Source, Inc.. Over a 3-year CAGR, PWR leads at 18. 4% 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.

Quanta Services, Inc.

(PWR) is the more profitable company, earning 3. 6% net margin versus -1. 6% for Custom Truck One Source, Inc. — meaning it keeps 3. 6% of every revenue dollar as bottom-line profit. Operating margin tells a similar story: CTOS leads at 7. 3% versus 5. 8% for PWR. At the gross margin level — before operating expenses — CTOS leads at 18. 9%, 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.

On forward earnings alone, Quanta Services, Inc.

(PWR) trades at 60. 0x forward P/E versus 120. 8x for Custom Truck One Source, Inc. — 60. 8x cheaper on a one-year earnings basis. Analyst consensus price targets imply the most upside for CTOS: 10. 3% to $11. 00.

None of the stocks in this comparison currently pay a material dividend.

All are effectively zero-yield and should be held for capital appreciation rather than income.

For long-horizon retirement investors, Quanta Services, Inc.

(PWR) is the stronger choice — it scores higher on the combination of lower volatility, dividend reliability, and long-term compounding. Custom Truck One Source, Inc. (CTOS) carries a higher beta of 1. 69 — meaning larger drawdowns in market downturns, which matters significantly when you cannot wait years for a recovery. Both have compounded well over 10 years (PWR: +32. 3%, CTOS: +1. 7%), 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: CTOS is a small-cap quality compounder 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.