Is ACM or AOS cheaper?

On trailing earnings, AOS is cheaper: ACM trades at a 16.60 P/E and AOS at 15.28.

Which has grown faster, ACM or AOS?

Over the past five years, AOS grew revenue faster — ACM at a 3.69% CAGR versus AOS at 4.72%.

Does ACM or AOS pay a bigger dividend?

ACM yields 1.65% and AOS yields 2.47% based on trailing dividends and the latest price.

Is ACM or AOS more profitable?

AOS runs the higher net margin — ACM at 3.16% versus AOS at 13.84%.

Which has been the better investment, ACM or AOS?

Over the past 10-year, ACM delivered the higher annualized total return — ACM at 7.82% versus AOS at 4.60%. Past performance doesn't predict future results.

Aecom (ACM) vs A. O. Smith Corporation (AOS)

AOS leads on 10 of 17 compared metrics.

A side-by-side comparison of Aecom and A. O. Smith Corporation across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of June 24, 2026. The ● marks the stronger figure on each row (cheaper multiple, higher margin/return).

A. O. Smith Corporation

$8.02B

$57.44Industrials

Total return — ACM vs AOS

growth of $100 · last 19y

ACM +227.3%AOS +765.1%AOS compounded faster

ACM AOS

ACM vs AOS: by the numbers

•ACM is the larger company ($8.88B vs $8.02B market cap).
•AOS trades at the lower earnings multiple (15.28 vs 16.60 P/E).
•AOS converts more revenue to profit (13.84% vs 3.16% net margin).
•AOS grew revenue faster over the past five years (4.72% vs 3.69% CAGR).
•AOS pays the higher dividend yield (2.47% vs 1.65%).

Which is better, ACM or AOS?

Metric tally: ACM 7 · AOS 10

It depends on what you're optimizing for:

ValueAOS(lower P/E)

GrowthAOS(faster 5Y revenue CAGR)

IncomeAOS(higher dividend yield)

QualityAOS(higher ROIC)

Metrics side by side

Valuation

Metric	ACM	AOS
P/E ratio	16.60	15.28●
Forward P/E	11.54●	15.20
P/S ratio	0.56●	2.10
P/B ratio	3.93●	4.26
PEG ratio	0.72●	3.01
EV / EBITDA	8.99●	10.65
FCF yield	4.60%	8.10%●

Profitability

Metric	ACM	AOS
Gross margin	7.73%	38.77%●
Operating margin	6.38%	18.55%●
Net margin	3.16%	13.84%●
ROE	22.27%	28.10%●
ROIC	12.33%	23.94%●

Dividends

Metric	ACM	AOS
Dividend yield	1.65%	2.47%●
Payout ratio	26.89%	36.79%

Growth (annualized)

Metric	ACM	AOS
Revenue CAGR (5Y)	3.69%	4.72%●
EPS CAGR (5Y)	25.59%●	12.52%
FCF CAGR (5Y)	-11.26%	3.27%●
Total return CAGR (5Y)	3.11%●	-1.58%

Frequently asked

Which is better, ACM or AOS?: It depends on your goal. value: AOS (lower P/E); growth: AOS (faster 5Y revenue CAGR); income: AOS (higher dividend yield); quality: AOS (higher ROIC). Across all compared metrics, AOS leads 10 to 7.
Is ACM or AOS cheaper?: On trailing earnings, AOS is cheaper: ACM trades at a 16.60 P/E and AOS at 15.28.
Which has grown faster, ACM or AOS?: Over the past five years, AOS grew revenue faster — ACM at a 3.69% CAGR versus AOS at 4.72%.
Does ACM or AOS pay a bigger dividend?: ACM yields 1.65% and AOS yields 2.47% based on trailing dividends and the latest price.
Is ACM or AOS more profitable?: AOS runs the higher net margin — ACM at 3.16% versus AOS at 13.84%.
Which has been the better investment, ACM or AOS?: Over the past 10-year, ACM delivered the higher annualized total return — ACM at 7.82% versus AOS at 4.60%. Past performance doesn't predict future results.

Go deeper

Full ACM analysis Full AOS analysis Interactive comparison tool

Dig into the metrics

Aecom P/E ratio A. O. Smith P/E ratio Aecom dividend yield A. O. Smith dividend yield Aecom ROE A. O. Smith ROE Aecom operating margin A. O. Smith operating margin Aecom revenue growth A. O. Smith revenue growth Aecom free cash flow A. O. Smith free cash flow

Aecom & A. O. Smith appear in these rankings

Highest Dividend Yield Stocks Dividend Aristocrats Highest ROE Stocks Highest ROIC 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 24, 2026.