Which has the lower trailing P/E, ACM or PNR?

PNR has the lower trailing P/E: ACM trades at 17.25 and PNR at 16.63. P/E is one valuation measure and does not by itself establish which business is cheaper.

Which has grown faster, ACM or PNR?

Over the past five years, ACM grew revenue faster — ACM at a 3.69% CAGR versus PNR at 3.36%.

Does ACM or PNR pay a bigger dividend?

ACM yields 1.66% and PNR yields 1.57% based on trailing dividends and the latest price.

Is ACM or PNR more profitable?

PNR runs the higher net margin — ACM at 3.16% versus PNR at 16.24%.

How have ACM and PNR total returns compared?

Over the past 10 years, ACM delivered 7.94% and PNR delivered 6.10% annualized total return. Past performance doesn't predict future results.

Aecom (ACM) vs Pentair plc (PNR)

A side-by-side comparison of Aecom and Pentair plc across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of July 31, 2026. Differences are shown without an overall score or investment verdict.

ACM

Aecom

$9.30B

$72.39IndustrialsDelayed quote: Jul 31, 2026, 4:00 PM EDT

PNR

Pentair plc

$10.58B

$65.44IndustrialsDelayed quote: Jul 31, 2026, 4:00 PM EDT

Total return — ACM vs PNR

growth of $100 · dividends reinvested · last 19y

ACM +256.6%PNR +310.1%PNR compounded faster

ACM PNR

ACM vs PNR: by the numbers

•PNR is the larger company ($10.58B vs $9.30B market cap).
•PNR trades at the lower trailing earnings multiple (16.63 vs 17.25 P/E), one valuation lens rather than an overall verdict.
•PNR converts more revenue to profit (16.24% vs 3.16% net margin).
•ACM grew revenue faster over the past five years (3.69% vs 3.36% CAGR).
•ACM pays the higher dividend yield (1.66% vs 1.57%).

Metrics side by side

Valuation

Metric	ACM	PNR
P/E ratio	17.25	16.63
Forward P/E	12.05	14.34
P/S ratio	0.58	2.68
P/B ratio	4.08	2.87
PEG ratio	0.72	4.70
EV / EBITDA	9.55	13.59
FCF yield	4.42%	6.25%

Profitability

Metric	ACM	PNR
Gross margin	7.73%	41.35%
Operating margin	6.38%	19.50%
Net margin	3.16%	16.24%
ROE	22.27%	17.37%
ROIC	12.33%	12.46%

Dividends

Metric	ACM	PNR
Dividend yield	1.66%	1.57%
Payout ratio	28.07%	26.07%

Growth (annualized)

Metric	ACM	PNR
Revenue CAGR (5Y)	3.69%	3.36%
EPS CAGR (5Y)	25.59%	13.17%
FCF CAGR (5Y)	26.08%	1.91%
Total return CAGR (5Y)	3.89%	-0.81%

Frequently asked

Which has the lower trailing P/E, ACM or PNR?: PNR has the lower trailing P/E: ACM trades at 17.25 and PNR at 16.63. P/E is one valuation measure and does not by itself establish which business is cheaper.
Which has grown faster, ACM or PNR?: Over the past five years, ACM grew revenue faster — ACM at a 3.69% CAGR versus PNR at 3.36%.
Does ACM or PNR pay a bigger dividend?: ACM yields 1.66% and PNR yields 1.57% based on trailing dividends and the latest price.
Is ACM or PNR more profitable?: PNR runs the higher net margin — ACM at 3.16% versus PNR at 16.24%.
How have ACM and PNR total returns compared?: Over the past 10 years, ACM delivered 7.94% and PNR delivered 6.10% annualized total return. Past performance doesn't predict future results.

Go deeper

Full ACM analysis Full PNR analysis Interactive comparison tool

Dig into the metrics

Aecom P/E ratio Pentair P/E ratio Aecom dividend yield Pentair dividend yield Aecom ROE Pentair ROE Aecom operating margin Pentair operating margin Aecom revenue growth Pentair revenue growth Aecom free cash flow Pentair free cash flow

Aecom & Pentair appear in these rankings

25+ Year Dividend Growers Highest FCF Yield Stocks

Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified July 31, 2026.