Is ACM or PRIM cheaper?

On trailing earnings, ACM is cheaper: ACM trades at a 16.73 P/E and PRIM at 22.36.

Which has grown faster, ACM or PRIM?

Over the past five years, PRIM grew revenue faster — ACM at a 3.69% CAGR versus PRIM at 15.99%.

Does ACM or PRIM pay a bigger dividend?

ACM yields 1.64% and PRIM yields 0.32% based on trailing dividends and the latest price.

Is ACM or PRIM more profitable?

PRIM runs the higher net margin — ACM at 3.16% versus PRIM at 3.31%.

Which has been the better investment, ACM or PRIM?

Over the past 10-year, PRIM delivered the higher annualized total return — ACM at 8.64% versus PRIM at 18.97%. Past performance doesn't predict future results.

Aecom (ACM) vs Primoris Services Corporation (PRIM)

ACM leads on 10 of 17 compared metrics.

A side-by-side comparison of Aecom and Primoris Services Corporation across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of June 16, 2026. The ● marks the stronger figure on each row (cheaper multiple, higher margin/return).

Primoris Services Corporation

$5.50B

$101.27Industrials

Total return — ACM vs PRIM

growth of $100 · last 19y

ACM +229.8%PRIM +1277.8%PRIM compounded faster

ACM PRIM

ACM vs PRIM: by the numbers

•ACM is the larger company ($8.94B vs $5.50B market cap).
•ACM trades at the lower earnings multiple (16.73 vs 22.36 P/E).
•PRIM converts more revenue to profit (3.31% vs 3.16% net margin).
•PRIM grew revenue faster over the past five years (15.99% vs 3.69% CAGR).
•ACM pays the higher dividend yield (1.64% vs 0.32%).

Which is better, ACM or PRIM?

Metric tally: ACM 10 · PRIM 7

It depends on what you're optimizing for:

ValueACM(lower P/E)

GrowthPRIM(faster 5Y revenue CAGR)

IncomeACM(higher dividend yield)

QualityACM(higher ROIC)

Metrics side by side

Valuation

Metric	ACM	PRIM
P/E ratio	16.73●	22.36
Forward P/E	11.63●	17.15
P/S ratio	0.56●	0.74
P/B ratio	3.96	3.30●
PEG ratio	0.72	0.48●
EV / EBITDA	9.05●	13.52
FCF yield	4.56%●	2.96%

Profitability

Metric	ACM	PRIM
Gross margin	7.73%	10.38%●
Operating margin	6.38%●	4.96%
Net margin	3.16%	3.31%●
ROE	22.27%●	14.73%
ROIC	12.33%●	10.68%

Dividends

Metric	ACM	PRIM
Dividend yield	1.64%●	0.32%
Payout ratio	26.89%	6.29%

Growth (annualized)

Metric	ACM	PRIM
Revenue CAGR (5Y)	3.69%	15.99%●
EPS CAGR (5Y)	25.59%●	18.59%
FCF CAGR (5Y)	-11.26%	-8.09%●
Total return CAGR (5Y)	2.74%	27.21%●

Frequently asked

Which is better, ACM or PRIM?: It depends on your goal. value: ACM (lower P/E); growth: PRIM (faster 5Y revenue CAGR); income: ACM (higher dividend yield); quality: ACM (higher ROIC). Across all compared metrics, ACM leads 10 to 7.
Is ACM or PRIM cheaper?: On trailing earnings, ACM is cheaper: ACM trades at a 16.73 P/E and PRIM at 22.36.
Which has grown faster, ACM or PRIM?: Over the past five years, PRIM grew revenue faster — ACM at a 3.69% CAGR versus PRIM at 15.99%.
Does ACM or PRIM pay a bigger dividend?: ACM yields 1.64% and PRIM yields 0.32% based on trailing dividends and the latest price.
Is ACM or PRIM more profitable?: PRIM runs the higher net margin — ACM at 3.16% versus PRIM at 3.31%.
Which has been the better investment, ACM or PRIM?: Over the past 10-year, PRIM delivered the higher annualized total return — ACM at 8.64% versus PRIM at 18.97%. Past performance doesn't predict future results.

Go deeper

Full ACM analysis Full PRIM analysis Interactive comparison tool

Dig into the metrics

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

Aecom & Primoris Services appear in these rankings

Fastest Revenue Growth Stocks Highest FCF Yield Stocks Best 10-Year Total Return 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 June 16, 2026.