PWR vs. TDG: Quanta Services vs. TransDigm Stock Comparison

November 11, 2026

How do Quanta Services (PWR) and TransDigm (TDG) stack up? This page sets them side by side across company profile, performance and risk, profitability, growth, financial strength, dividends, and valuation, with selected fundamentals also measured against each stock's industry-group peers.

Company Profile

Quanta Services (PWR) and TransDigm (TDG) both fall under the Capital Goods industry group, but PWR is classified in Construction & Engineering while TDG is classified in Aerospace & Defense.

Company profile comparison for Quanta Services (PWR) and TransDigm (TDG)
Profile Item	PWR	TDG
Name	Quanta Services, Inc.	TransDigm Group Inc.
Country/Region	United States	United States
GICS Sector	Industrials	Industrials
GICS Industry Group	Capital Goods	Capital Goods
GICS Industry	Construction & Engineering	Aerospace & Defense
GICS Sub-Industry	Construction & Engineering	Aerospace & Defense
Market Capitalization	81.50 billion USD	66.17 billion USD
Currency	USD	USD
Exchange	NYSE	NYSE
Listing Date	February 12, 1998	March 15, 2006
Security Type	Common Stock	Common Stock

Price Performance

Cumulative Growth

PWR

TDG

GSPC

Quanta Services (PWR) vs. TransDigm (TDG), with S&P 500 (GSPC) for reference: Growth of a $10,000 investment over the past five years. Adjusted for dividends and splits.

Trailing Returns

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Trailing total returns for Quanta Services (PWR) and TransDigm (TDG). Returns over one year are annualized.

Calendar-Year Returns

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Calendar-year total returns for Quanta Services (PWR) and TransDigm (TDG). Each bar is that year's total return, measured year-end to year-end.

Performance Metrics

Price performance metrics for Quanta Services (PWR) and TransDigm (TDG)
Metric	PWR	TDG
Total Return (1Y)	32.97%	-3.42%
Total Return (3Y, Annualized)	51.81%	14.26%
Total Return (5Y, Annualized)	38.19%	16.86%

Risk Profile

Drawdown History

PWR

TDG

GSPC

Quanta Services (PWR) vs. TransDigm (TDG), with S&P 500 (GSPC) for reference: Drawdown from the running peak over the past five years. Each line shows the decline from its prior peak; 0% marks a new high.

Return Distribution

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Distribution of monthly total returns for Quanta Services (PWR) and TransDigm (TDG). Each bar is the share of months whose return fell in that 5% bucket.

Risk Metrics

Risk profile metrics for Quanta Services (PWR) and TransDigm (TDG)
Metric	PWR	TDG
Volatility (1Y, Annualized)	50.22%	28.03%
Beta (5Y)	1.29	0.94
Max Drawdown (5Y)	-35.15%	-29.05%
Avg. Volume (3M)	1.19M	369.72K

Risk-Adjusted Performance

Risk-Return Positioning

PWR and TDG are plotted by 1-year volatility (risk) and 1-year return. The dashed Capital Allocation Line runs from the risk-free rate through the shared industry median.

Risk-Adjusted Metrics

Risk-adjusted metrics for Quanta Services (PWR) and TransDigm (TDG)
Metric	PWR	TDG
Sharpe Ratio (1Y)	0.57	-0.27
Sortino Ratio (1Y)	0.87	-0.38

Profitability

ROE (TTM)

Capital efficiency shows on one side only: Quanta Services (PWR) earns 18.02% on shareholders’ equity, ranked against its industry; TransDigm (TDG) has no ROE this period.

PWR

Capital Goods industry group

18.02%

Max: 40.55%
Q3: 19.29%
PWR: 18.02%
Median: 12.12%
Q1: 4.08%
Min: -17.12%

TDG

Capital Goods industry group

Max: 40.55%
Q3: 19.29%
Median: 12.12%
Q1: 4.08%
Min: -17.12%
TDG: --

Quanta Services (PWR) vs. TransDigm (TDG): TDG does not report ROE, so it has no value marker; PWR is benchmarked against the Capital Goods industry group.

Net Margin (TTM)

TransDigm (TDG) at 21.28% retains a top-quartile share of revenue as profit, ahead of Quanta Services (PWR) at 4.51%, which keeps about the industry-typical share.

PWR

Capital Goods industry group

4.51%

Max: 27.47%
Q3: 12.10%
Median: 6.30%
PWR: 4.51%
Q1: 1.40%
Min: -12.89%

TDG

Capital Goods industry group

21.28%

Max: 27.47%
TDG: 21.28%
Q3: 12.10%
Median: 6.30%
Q1: 1.40%
Min: -12.89%

Quanta Services (PWR) vs. TransDigm (TDG): A comparison of their net margin against the Capital Goods industry group benchmark.

Operating Margin (TTM)

TransDigm (TDG) at 46.01% turns sales into operating profit above its industry’s benchmark range, while Quanta Services (PWR) at 8.63% operates around its industry’s norm.

PWR

Capital Goods industry group

8.63%

Max: 36.60%
Q3: 18.33%
Median: 11.12%
PWR: 8.63%
Q1: 5.14%
Min: -12.63%

TDG

Capital Goods industry group

46.01%

TDG: 46.01%
Max: 36.60%
Q3: 18.33%
Median: 11.12%
Q1: 5.14%
Min: -12.63%

Quanta Services (PWR) vs. TransDigm (TDG): A comparison of their operating margin against the Capital Goods industry group benchmark.

Profitability Metrics

Profitability metrics for Quanta Services (PWR) and TransDigm (TDG)
Metric	PWR	TDG
ROE (TTM)	18.02%	--
ROA (TTM)	5.72%	11.82%
Net Margin (TTM)	4.51%	21.28%
Operating Margin (TTM)	8.63%	46.01%
Gross Margin (TTM)	15.76%	59.82%

Growth

Revenue Growth

Quanta Services (PWR) at 20.31% sits in the top revenue growth quartile, while TransDigm (TDG) at 11.22% is closer to the peer norm — faster top-line expansion for PWR.

Quanta Services (PWR) vs. TransDigm (TDG): A comparison of their Revenue Growth across different time periods.

EPS Growth

Both Quanta Services (PWR) at 12.77% and TransDigm (TDG) at 25.21% land near their industries' usual EPS growth ranges, so bottom-line momentum looks broadly in line with peers on both sides.

Quanta Services (PWR) vs. TransDigm (TDG): A comparison of their EPS Growth across different time periods.

Growth Metrics

Growth metrics for Quanta Services (PWR) and TransDigm (TDG)
Metric	PWR	TDG
Revenue Growth (YoY)	20.31%	11.22%
Revenue Growth (3Y CAGR)	18.60%	17.61%
EPS Growth (YoY)	12.77%	25.21%
EPS Growth (3Y CAGR)	27.00%	33.78%

Financial Strength

Current Ratio (MRQ)

TransDigm (TDG) at 3.02 carries current ratio above its industry’s typical mid-range, while Quanta Services (PWR) at 1.16 runs in the tighter-liquidity quartile — different working-capital profiles, both worth examining.

PWR

Capital Goods industry group

1.16

Max: 5.22
Q3: 2.95
Median: 2.08
Q1: 1.43
PWR: 1.16
Min: 0.36

TDG

Capital Goods industry group

3.02

Max: 5.22
TDG: 3.02
Q3: 2.95
Median: 2.08
Q1: 1.43
Min: 0.36

Quanta Services (PWR) vs. TransDigm (TDG): A comparison of their current ratio against the Capital Goods industry group benchmark.

Debt / Equity (MRQ)

Only one side’s leverage can be read here: Quanta Services (PWR) carries debt-to-equity ratio of 0.71 against its industry range, while TransDigm (TDG) reports no figure this period.

PWR

Capital Goods industry group

0.71

Max: 2.33
Q3: 1.12
PWR: 0.71
Median: 0.60
Q1: 0.29
Min: 0.00

TDG

Capital Goods industry group

Max: 2.33
Q3: 1.12
Median: 0.60
Q1: 0.29
Min: 0.00
TDG: --

Quanta Services (PWR) vs. TransDigm (TDG): TDG does not report debt-to-equity ratio, so it has no value marker; PWR is benchmarked against the Capital Goods industry group.

Financial Strength Metrics

Financial strength metrics for Quanta Services (PWR) and TransDigm (TDG)
Metric	PWR	TDG
Current Ratio (MRQ)	1.16	3.02
Debt / Equity (MRQ)	0.71	--
Net Debt / EBITDA	1.43	6.03

Dividends

Dividend Yield (TTM)

TransDigm (TDG) pays no dividend (yield 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile Quanta Services (PWR) reports a yield of 0.09%, ranking against industry peers normally.

PWR

Capital Goods industry group

0.09%

Max: 2.66%
Q3: 1.14%
Median: 0.24%
PWR: 0.09%
Q1: 0.00%
Min: 0.00%

TDG

Capital Goods industry group

0.00%

Max: 2.66%
Q3: 1.14%
Median: 0.24%
TDG: 0.00%
Q1: 0.00%
Min: 0.00%

Quanta Services (PWR) vs. TransDigm (TDG): A comparison of their dividend yield against the Capital Goods industry group benchmark.

Dividend Payout Ratio (TTM)

TransDigm (TDG) pays no dividend (payout 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile Quanta Services (PWR) reports a payout of 3.98%, ranking against industry peers normally.

PWR

Capital Goods industry group

3.98%

Max: 67.39%
Q3: 28.02%
Median: 6.86%
PWR: 3.98%
Q1: 0.00%
Min: 0.00%

TDG

Capital Goods industry group

0.00%

Max: 67.39%
Q3: 28.02%
Median: 6.86%
TDG: 0.00%
Q1: 0.00%
Min: 0.00%

Quanta Services (PWR) vs. TransDigm (TDG): A comparison of their payout ratio against the Capital Goods industry group benchmark.

Dividend Metrics

Dividend metrics for Quanta Services (PWR) and TransDigm (TDG)
Metric	PWR	TDG
Dividend Yield (TTM)	0.09%	0.00%
Dividend Payout Ratio (TTM)	3.98%	0.00%

Valuation

P/E Ratio (TTM)

Both Quanta Services (PWR) at 48.95 and TransDigm (TDG) at 36.31 sit in the richer earnings-multiple quartile for P/E ratio, so investors are paying more for TTM earnings than they pay for typical peers.

PWR

Capital Goods industry group

48.95

Max: 59.38
PWR: 48.95
Q3: 35.92
Median: 25.41
Q1: 19.47
Min: 3.03

TDG

Capital Goods industry group

36.31

Max: 59.38
TDG: 36.31
Q3: 35.92
Median: 25.41
Q1: 19.47
Min: 3.03

Quanta Services (PWR) vs. TransDigm (TDG): A comparison of their P/E ratio against the Capital Goods industry group benchmark.

P/S Ratio (TTM)

Quanta Services (PWR) at 2.19 is priced about in line with its industry on P/S ratio, while TransDigm (TDG) at 6.61 sits in the pricier quartile — TDG costs more per dollar of sales.

PWR

Capital Goods industry group

2.19

Max: 7.54
Q3: 3.76
PWR: 2.19
Median: 2.15
Q1: 1.03
Min: 0.03

TDG

Capital Goods industry group

6.61

Max: 7.54
TDG: 6.61
Q3: 3.76
Median: 2.15
Q1: 1.03
Min: 0.03

Quanta Services (PWR) vs. TransDigm (TDG): A comparison of their P/S ratio against the Capital Goods industry group benchmark.

P/B Ratio (MRQ)

TransDigm (TDG) reports a negative P/B ratio of -6.74, meaning negative book equity — the multiple itself is not meaningful for valuation. Meanwhile Quanta Services (PWR) reports 7.73, ranking against industry peers normally.

PWR

Capital Goods industry group

7.73

Max: 9.66
PWR: 7.73
Q3: 5.00
Median: 3.12
Q1: 1.81
Min: -1.08

TDG

Capital Goods industry group

-6.74

Max: 9.66
Q3: 5.00
Median: 3.12
Q1: 1.81
Min: -1.08
TDG: -6.74

Quanta Services (PWR) vs. TransDigm (TDG): A comparison of their P/B ratio against the Capital Goods industry group benchmark.

Valuation Metrics

Valuation metrics for Quanta Services (PWR) and TransDigm (TDG)
Metric	PWR	TDG
P/E Ratio (TTM)	48.95	36.31
P/S Ratio (TTM)	2.19	6.61
P/B Ratio (MRQ)	7.73	-6.74
Free Cash Flow Yield (TTM)	3.78%	2.20%