Is AOS or SIMO cheaper?

On trailing earnings, AOS is cheaper: AOS trades at a 16.16 P/E and SIMO at 21.10.

Which has grown faster, AOS or SIMO?

Over the past five years, SIMO grew revenue faster — AOS at a 4.72% CAGR versus SIMO at 12.49%.

Does AOS or SIMO pay a bigger dividend?

AOS yields 2.34% and SIMO yields 0.74% based on trailing dividends and the latest price.

Is AOS or SIMO more profitable?

SIMO runs the higher net margin — AOS at 13.84% versus SIMO at 16.02%.

Which has been the better investment, AOS or SIMO?

Over the past 10-year, SIMO delivered the higher annualized total return — AOS at 4.84% versus SIMO at 20.85%. Past performance doesn't predict future results.

A. O. Smith Corporation (AOS) vs Silicon Motion Technology Corporation (SIMO)

AOS leads on 10 of 17 compared metrics.

A side-by-side comparison of A. O. Smith Corporation and Silicon Motion Technology Corporation across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of July 25, 2026. The ● marks the stronger figure on each row (cheaper multiple, higher margin/return).

AOS

A. O. Smith Corporation

$8.49B

$60.78IndustrialsAt close: Jul 24, 2026, 4:00 PM ET

SIMO

Silicon Motion Technology Corporation

$9.09B

$270.90TechnologyAt close: Jul 24, 2026, 4:00 PM ET

Total return — AOS vs SIMO

growth of $100 · dividends reinvested · last 21y

AOS +1894.6%SIMO +3536.4%SIMO compounded faster

AOS SIMO

AOS vs SIMO: by the numbers

•SIMO is the larger company ($9.09B vs $8.49B market cap).
•AOS trades at the lower earnings multiple (16.16 vs 21.10 P/E).
•SIMO converts more revenue to profit (16.02% vs 13.84% net margin).
•SIMO grew revenue faster over the past five years (12.49% vs 4.72% CAGR).
•AOS pays the higher dividend yield (2.34% vs 0.74%).

Which is better, AOS or SIMO?

Metric tally: AOS 10 · SIMO 7

It depends on what you're optimizing for:

ValueAOS(lower P/E)

GrowthSIMO(faster 5Y revenue CAGR)

IncomeAOS(higher dividend yield)

QualityAOS(higher ROIC)

Metrics side by side

Valuation

Metric	AOS	SIMO
P/E ratio	16.16●	21.10
Forward P/E	16.15●	30.51
P/S ratio	2.22●	2.57
P/B ratio	4.50	2.74●
PEG ratio	3.01	0.17●
EV / EBITDA	11.23●	16.83
FCF yield	7.66%●	0.28%

Profitability

Metric	AOS	SIMO
Gross margin	38.77%	48.09%●
Operating margin	18.55%●	12.77%
Net margin	13.84%	16.02%●
ROE	28.10%●	18.76%
ROIC	23.94%●	9.22%

Dividends

Metric	AOS	SIMO
Dividend yield	2.34%●	0.74%
Payout ratio	36.79%	13.70%

Growth (annualized)

Metric	AOS	SIMO
Revenue CAGR (5Y)	4.72%	12.49%●
EPS CAGR (5Y)	12.52%	44.85%●
FCF CAGR (5Y)	3.27%●	-42.15%
Total return CAGR (5Y)	-0.89%	37.15%●

Frequently asked

Which is better, AOS or SIMO?: It depends on your goal. value: AOS (lower P/E); growth: SIMO (faster 5Y revenue CAGR); income: AOS (higher dividend yield); quality: AOS (higher ROIC). Across all compared metrics, AOS leads 10 to 7.
Is AOS or SIMO cheaper?: On trailing earnings, AOS is cheaper: AOS trades at a 16.16 P/E and SIMO at 21.10.
Which has grown faster, AOS or SIMO?: Over the past five years, SIMO grew revenue faster — AOS at a 4.72% CAGR versus SIMO at 12.49%.
Does AOS or SIMO pay a bigger dividend?: AOS yields 2.34% and SIMO yields 0.74% based on trailing dividends and the latest price.
Is AOS or SIMO more profitable?: SIMO runs the higher net margin — AOS at 13.84% versus SIMO at 16.02%.
Which has been the better investment, AOS or SIMO?: Over the past 10-year, SIMO delivered the higher annualized total return — AOS at 4.84% versus SIMO at 20.85%. Past performance doesn't predict future results.

Go deeper

Full AOS analysis Full SIMO analysis Interactive comparison tool

Dig into the metrics

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

A. O. Smith & Silicon Motion Technology 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 July 25, 2026.