AOS vs LGN vs AAON Stock Comparison

Smith A O, Legence and Aaon Prices as of Oct 28, 2026 Peers: Industry group
AOS Smith A O Corp
$60.89 +4.3% 1M -8.9% 1Y
Market cap
$8.39B
P/E
16.8x
Revenue (TTM)
$3.80B
Div. yield
0.02%
HVAC Industrials
8 wins
LGN Legence Corp.
$40.81 -23.6% 1M +3.1% 1Y
Market cap
$3.10B
P/E
–
Revenue (TTM)
$3.31B
Div. yield
–
HVAC Industrials
1 win
AAON Aaon, Inc.
$75.61 -11.4% 1M -26.8% 1Y
Market cap
$5.98B
P/E
37.5x
Revenue (TTM)
$1.93B
Div. yield
–
HVAC Industrials
2 wins

Head to Head

11 decided of 12

Smith A O leads on 8 of the 12 questions below (Smith A O 8, Aaon 2, Legence 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionAOSLGNAAONLeader
Larger companyMarket capitalisation $8.39B $3.10B $5.98B AOS
Cheaper on earningsLower P/E, profitable companies only 16.8x -46.6x 37.5x AOS
Cheaper on forward earningsLower price / next fiscal year consensus EPS 16.9x 29.6x 33.9x AOS
Faster revenue growthRevenue growth, trailing twelve months +0.4% — +53.5% AAON
More profitableNet margin, trailing twelve months 13.1% -2.0% 8.2% AOS
Better return on capitalReturn on invested capital 20.9% 2.1% 12.7% AOS
Less leveragedLower net debt / EBITDA 0.6x 4.7x 1.5x AOS
Higher dividend yieldTrailing dividend yield 0.02% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months -8.9% +3.1% -26.8% LGN
Better 5-year returnAnnualised price return, 5 years -3.6%/yr — +9.6%/yr AAON
Less volatileAnnualised volatility, 1 year 27.3% 73.1% 59.8% AOS
Higher overall scoreMean of the five percentile scores vs peers 63/100 17/100 42/100 AOS

Percentile Scorecard

AOSLGNAAON

Each axis is the mean percentile of its metrics against the company's industry group. 100 is the best in the group, 50 the middle.

Scores by Axis

AxisAOSLGNAAON
Valuation 67 #19 of 55 17 #46 of 55 7 #51 of 55
Growth 42 #30 of 51 – 78 #12 of 51
Profitability 98 #2 of 48 13 #42 of 48 53 #23 of 48
Financial Health 68 #18 of 54 21 #43 of 54 64 #20 of 54
Shareholder Returns 40 #25 of 41 – 5 #39 of 41
Overall 63 17 42
  • AOS ranked among 59 companies in Construction Products
  • LGN ranked among 59 companies in Construction Products
  • AAON ranked among 59 companies in Construction Products

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodAOSLGNAAONSPY
1 month +4.3%-23.6%-11.4% +0.9%
3 months -1.8%-23.1%-10.9% +5.9%
6 months -4.4%-49.5%-12.6% +8.5%
Year to date -9.0%-5.2%-0.8% +13.3%
1 year -8.9%+3.1%-26.8% +12.4%
3 years -10.2%—+40.7% +88.1%
3 years, per year -3.5%—+12.1% +23.5%
5 years -16.7%—+58.3% +68.2%
5 years, per year -3.6%—+9.6% +11.0%
10 years +35.3%—+285.2% +263.4%
10 years, per year +3.1%—+14.4% +13.8%

Risk

MeasureAOSLGNAAONSPY
Volatility, 1Y 27.3%73.1%59.8% 12.7%
Downside volatility, 1Y 26.3%78.5%57.6% 12.7%
Beta vs S&P 500, 1Y 0.712.802.21 1.00
Return / volatility, 1Y -0.330.04-0.45 0.98
Max drawdown, 5Y -43.4%-64.7%-53.6% -25.4%
From 52-week high -24.3%-60.1%-49.0% -0.9%
52-week high $80.47$102.27$148.25 $779.14
52-week low $55.34$33.32$68.85 $631.97

Valuation History

Weekly multiples on trailing twelve-month fundamentals. Negative or extreme readings (a loss year, a collapsed denominator) are left out so the chart stays readable.

MultipleAOSLGNAAON
P/E now vs peer median 16.7xmedian 20.0x -46.7xmedian 20.0x 39.0xmedian 20.0x
P/S now vs peer median 2.2xmedian 1.5x 1.3xmedian 1.5x 3.2xmedian 1.5x
EV/EBITDA now vs peer median 11.5xmedian 11.3x 32.3xmedian 11.3x 22.3xmedian 11.3x
P/FCF now vs peer median 12.9xmedian 15.3x —median 15.3x -52.5xmedian 15.3x
P/B now vs peer median 4.5xmedian 2.8x 4.5xmedian 2.8x 6.2xmedian 2.8x
PEG now vs peer median 0.64median 0.99 —median 0.99 17.91median 0.99

Financial History

Reported figures by fiscal period, placed on the calendar year (or quarter) each period ended in, so companies with different fiscal years line up.

Trailing twelve monthsAOSLGNAAON
Revenue $3.80B $3.31B $1.93B
Gross profit $1.47B $644.45M $494.09M
Operating income $668.70M $38.41M $213.50M
Net income $500.30M -$90.65M $159.29M
Free cash flow $639.40M – -$118.79M
EPS (diluted) $3.63 $-0.87 $1.90
Cash & equivalents $181.30M $291.98M $13.00K
Total debt $637.50M $4.30B $435.00M
Shares (diluted) 137.86M 76.03M 83.72M
Enterprise value $7.64B $2.32B $5.97B

All Metrics

58 metrics · best in bold

Bold marks the best reading: the lowest positive value for multiples, leverage and payout, the highest for everything else. The bar under each value is its percentile against that company's own peers. Hover a value for its rank and the peer median.

Valuation

12 metrics
MetricAOSLGNAAON
P/E 16.7x -46.7x 39.0x
P/FCF 12.9x – -52.5x
P/Operating cash flow 12.0x – 72.0x
P/S 2.2x 1.3x 3.2x
P/B 4.5x 4.5x 6.2x
P/Tangible book 6.6x 23.8x 6.2x
EV/EBITDA 11.5x 32.3x 22.3x
EV/EBIT 13.1x 134.1x 31.2x
EV/Revenue 2.3x 1.6x 3.5x
EV/FCF 13.7x – -56.1x
EV/Operating cash flow 12.6x – 77.1x
PEG (3Y EPS CAGR) 0.64 – 17.91

Growth

14 metrics
MetricAOSLGNAAON
Revenue growth (1Y) 0.4% – 53.5%
Revenue CAGR (3Y) 0.6% – 22.7%
Gross profit growth (1Y) 1.4% – 36.9%
Gross profit CAGR (3Y) 1.3% – 16.2%
Operating income growth (1Y) -5.2% – 39.0%
Operating income CAGR (3Y) -2.5% – 5.4%
Net income growth (1Y) -3.5% – 30.5%
Net income CAGR (3Y) 22.3% – 2.3%
EPS growth (1Y) -0.3% – 29.3%
EPS CAGR (3Y) 26.2% – 2.2%
Operating cash flow growth (1Y) 16.1% – 157.7%
Operating cash flow CAGR (3Y) 5.0% – -11.0%
Free cash flow growth (1Y) 29.3% – 33.7%
Free cash flow CAGR (3Y) 6.2% – -74.9%

Profitability

14 metrics
MetricAOSLGNAAON
Gross margin 38.6% 19.5% 25.6%
EBITDA margin 20.0% 4.8% 15.5%
Operating margin 17.6% 1.2% 11.0%
Pretax margin 17.0% -1.9% 9.9%
Net margin 13.1% -2.0% 8.2%
FCF margin 16.8% – -6.1%
Operating cash flow margin 18.2% – 4.5%
Return on equity 26.9% -10.5% 16.4%
Return on assets 13.7% -2.9% 8.7%
Return on invested capital 20.9% 2.1% 12.7%
Return on capital employed 24.1% 1.9% 14.3%
Asset turnover 1.0x 1.0x 1.1x
Cash conversion (OCF / net income) 1.4x – 0.5x
Stock comp / revenue 0.4% – 1.0%

Financial Health

11 metrics
MetricAOSLGNAAON
Debt / assets 17.5% 27.7% 23.3%
Debt / equity 0.3x 1.1x 0.4x
Net debt / EBITDA 0.6x 4.7x 1.5x
Debt / FCF 1.0x – -3.7x
Liabilities / assets 49.5% 73.9% 45.8%
Equity / assets 50.5% 26.1% 54.2%
Interest coverage 31.5x 0.4x –
Current ratio 1.6x 1.3x 3.0x
Quick ratio 1.0x 1.3x 1.9x
Cash ratio 0.2x 0.2x 0.0x
Altman Z-score 6.15 1.89 6.91

Shareholder Returns

7 metrics
MetricAOSLGNAAON
Dividend yield 2.4% – 0.5%
Net buyback yield 3.8% – -0.6%
Shareholder yield 6.1% – -0.1%
Payout ratio (earnings) 39.6% – –
Payout ratio (FCF) 31.0% – –
Dividend growth (1Y) 2.2% – –
Dividend CAGR (3Y) 3.2% – –

Analyst Estimates

Solid lines are reported fiscal-year results; dashed lines are the consensus for the years ahead. Hover a year for the analysts' high and low, and how each result compared with its estimate.

ConsensusAOSLGNAAON
Forward P/E 16.9xFY2026 29.6xFY2026 33.9xFY2026
EPS, next fiscal year $3.60FY2026 $1.38FY2026 $2.23FY2026
EPS growth, next FY -6.5%FY2026 – +65.2%FY2026
EPS growth, the year after +15.0% +79.0% +56.1%
Revenue, next fiscal year $3.73BFY2026 $4.58BFY2026 $2.44BFY2026
Revenue growth, next FY -2.6%FY2026 +79.7%FY2026 +69.6%FY2026
Revenue growth, the year after +3.9% +22.8% +16.8%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersAOSLGNAAON
Held by institutions 91.9% 100.0% 78.7%
Institutions holding 614 265 469
Change in shares held, QoQ +7.1% +17.6% -7.0%
Institutions buying 315 194 241
Institutions selling 226 58 174
Buyers to sellers 1.39 3.34 1.39

Return Correlation

Daily returns, last 12 months

1.00 means two stocks move in lockstep, 0 that they move independently. Pairs below about 0.5 diversify each other.

AOSLGNAAON
AOS 1.00 -0.01 0.23
LGN -0.01 1.00 0.35
AAON 0.23 0.35 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, AOS, LGN and AAON?

Smith A O (AOS) is the largest by market capitalisation: Smith A O (AOS) $8.39B, Legence (LGN) $3.10B, Aaon (AAON) $5.98B.

Which stock is cheaper, AOS, LGN and AAON?

Smith A O (AOS) trades on the lowest price-to-earnings ratio (Smith A O (AOS) 16.8x, Legence (LGN) -46.6x, Aaon (AAON) 37.5x). On next year's consensus earnings, Smith A O (AOS) is cheapest (Smith A O (AOS) 16.9x, Legence (LGN) 29.6x, Aaon (AAON) 33.9x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Aaon (AAON) grew revenue fastest over the trailing twelve months: Smith A O (AOS) +0.4%, Aaon (AAON) +53.5%.

Which company is more profitable?

Smith A O (AOS) has the highest net margin (Smith A O (AOS) 13.1%, Legence (LGN) -2.0%, Aaon (AAON) 8.2%). On return on invested capital, Smith A O (AOS) leads (Smith A O (AOS) 20.9%, Legence (LGN) 2.1%, Aaon (AAON) 12.7%).

Which stock has performed better?

Over the past year Legence (LGN) returned the most: Smith A O (AOS) -8.9%, Legence (LGN) +3.1%, Aaon (AAON) -26.8%. Over five years, Aaon (AAON) compounded fastest (Smith A O (AOS) -3.6%/yr, Aaon (AAON) +9.6%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Smith A O (AOS) 0.02%, Legence (LGN) 0.00%, Aaon (AAON) 0.00%. Legence (LGN) and Aaon (AAON) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Smith A O (AOS) has been the steadiest (Smith A O (AOS) 27.3%, Legence (LGN) 73.1%, Aaon (AAON) 59.8%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, AOS, LGN and AAON?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Smith A O (AOS) leads on 8. Business Quant does not give investment advice; use the comparison as a starting point for your own research.

Data from SEC filings, exchange prices and consensus estimates, via Business Quant. Percentile scores compare each company with its own peer group, so two companies' scores are each relative to different peers unless you rank against the whole market. Price returns exclude dividends. Nothing on this page is investment advice.