AOS vs FIX vs LGN Stock Comparison

Smith A O, Comfort Systems Usa and Legence Prices as of Oct 27, 2026 Peers: Industry group
AOS Smith A O Corp
$62.08 +5.8% 1M -9.5% 1Y
Market cap
$8.51B
P/E
17.0x
Revenue (TTM)
$3.80B
Div. yield
0.02%
HVAC Industrials
6 wins
FIX Comfort Systems Usa Inc
$1,288.51 -22.3% 1M +32.0% 1Y
Market cap
$46.24B
P/E
28.3x
Revenue (TTM)
$5.27B
Div. yield
0.00%
HVAC Industrials
6 wins
LGN Legence Corp.
$38.06 -27.5% 1M +3.4% 1Y
Market cap
$2.92B
P/E
–
Revenue (TTM)
$3.31B
Div. yield
–
HVAC Industrials

Head to Head

12 decided of 12

Comfort Systems Usa leads on 6 of the 12 questions below (Comfort Systems Usa 6, Smith A O 6). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionAOSFIXLGNLeader
Larger companyMarket capitalisation $8.51B $46.24B $2.92B FIX
Cheaper on earningsLower P/E, profitable companies only 17.0x 28.3x -44.0x AOS
Cheaper on forward earningsLower price / next fiscal year consensus EPS 17.2x 28.2x 27.6x AOS
Faster revenue growthRevenue growth, trailing twelve months +0.4% -36.6% — AOS
More profitableNet margin, trailing twelve months 13.1% 30.9% -2.0% FIX
Better return on capitalReturn on invested capital 20.9% 16.0% 2.1% AOS
Less leveragedLower net debt / EBITDA 0.6x -2.0x 4.7x FIX
Higher dividend yieldTrailing dividend yield 0.02% 0.00% 0.00% AOS
Better 1-year returnPrice return, last 12 months -9.5% +32.0% +3.4% FIX
Better 5-year returnAnnualised price return, 5 years -2.6%/yr +70.7%/yr — FIX
Less volatileAnnualised volatility, 1 year 27.4% 56.9% 73.1% AOS
Higher overall scoreMean of the five percentile scores vs peers 64/100 71/100 19/100 FIX

Percentile Scorecard

AOSFIXLGN

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

AxisAOSFIXLGN
Valuation 66 #20 of 56 27 #41 of 56 18 #46 of 56
Growth 39 #32 of 52 86 #8 of 52 –
Profitability 100 #1 of 49 81 #10 of 49 15 #42 of 49
Financial Health 71 #17 of 56 78 #13 of 56 24 #43 of 56
Shareholder Returns 43 #24 of 41 80 #9 of 41 –
Overall 64 71 19
  • AOS ranked among 60 companies in Construction Products
  • FIX ranked among 60 companies in Construction Products
  • LGN ranked among 60 companies in Construction Products

Price Performance

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

Returns

PeriodAOSFIXLGNSPY
1 month +5.8%-22.3%-27.5% -0.2%
3 months -3.0%-20.8%-35.7% +3.9%
6 months -2.9%-25.1%-52.8% +8.2%
Year to date -7.2%+38.1%-11.6% +12.9%
1 year -9.5%+32.0%+3.4% +12.3%
3 years -8.5%+632.4%— +87.4%
3 years, per year -2.9%+94.3%— +23.3%
5 years -12.2%+1,346.1%— +67.9%
5 years, per year -2.6%+70.7%— +10.9%
10 years +38.3%+4,619.8%— +261.1%
10 years, per year +3.3%+47.0%— +13.7%

Risk

MeasureAOSFIXLGNSPY
Volatility, 1Y 27.4%56.9%73.1% 12.7%
Downside volatility, 1Y 26.5%62.3%78.5% 12.7%
Beta vs S&P 500, 1Y 0.712.592.80 1.00
Return / volatility, 1Y -0.350.560.05 0.97
Max drawdown, 5Y -43.4%-46.1%-64.7% -25.4%
From 52-week high -22.9%-37.6%-62.8% -1.2%
52-week high $80.47$2,066.51$102.27 $779.14
52-week low $55.34$876.19$33.32 $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.

MultipleAOSFIXLGN
P/E now vs peer median 17.0xmedian 20.1x 27.7xmedian 20.1x -43.6xmedian 20.1x
P/S now vs peer median 2.2xmedian 1.5x 8.6xmedian 1.5x 1.2xmedian 1.5x
EV/EBITDA now vs peer median 11.7xmedian 11.8x 40.9xmedian 11.8x 30.5xmedian 11.8x
P/FCF now vs peer median 13.2xmedian 16.2x 18.5xmedian 16.2x —median 16.2x
P/B now vs peer median 4.6xmedian 2.9x 13.5xmedian 2.9x 4.2xmedian 2.9x
PEG now vs peer median 0.65median 0.99 0.35median 0.99 —median 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 monthsAOSFIXLGN
Revenue $3.80B $5.27B $3.31B
Gross profit $1.47B $1.42B $644.45M
Operating income $668.70M $989.51M $38.41M
Net income $500.30M $1.63B -$90.65M
Free cash flow $639.40M $2.44B –
EPS (diluted) $3.63 $46.42 $-0.87
Cash & equivalents $181.30M $2.16B $291.98M
Total debt $637.50M $49.56M $4.30B
Shares (diluted) 137.86M 35.15M 76.03M
Enterprise value $7.76B $40.19B $2.14B

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
MetricAOSFIXLGN
P/E 17.0x 27.7x -43.6x
P/FCF 13.2x 18.5x –
P/Operating cash flow 12.2x 15.0x –
P/S 2.2x 8.6x 1.2x
P/B 4.6x 13.5x 4.2x
P/Tangible book 6.7x 16.2x 22.2x
EV/EBITDA 11.7x 40.9x 30.5x
EV/EBIT 13.3x 43.4x 126.4x
EV/Revenue 2.3x 8.2x 1.5x
EV/FCF 13.9x 17.6x –
EV/Operating cash flow 12.8x 14.3x –
PEG (3Y EPS CAGR) 0.65 0.35 –

Growth

14 metrics
MetricAOSFIXLGN
Revenue growth (1Y) 0.4% -36.6% –
Revenue CAGR (3Y) 0.6% 2.0% –
Gross profit growth (1Y) 1.4% -27.6% –
Gross profit CAGR (3Y) 1.3% 15.4% –
Operating income growth (1Y) -5.2% -11.2% –
Operating income CAGR (3Y) -2.5% 37.8% –
Net income growth (1Y) -3.5% 94.8% –
Net income CAGR (3Y) 22.3% 78.4% –
EPS growth (1Y) -0.3% 96.0% –
EPS CAGR (3Y) 26.2% 79.7% –
Operating cash flow growth (1Y) 16.1% 223.9% –
Operating cash flow CAGR (3Y) 5.0% 71.3% –
Free cash flow growth (1Y) 29.3% 205.6% –
Free cash flow CAGR (3Y) 6.2% 67.9% –

Profitability

14 metrics
MetricAOSFIXLGN
Gross margin 38.6% 26.8% 19.5%
EBITDA margin 20.0% 19.9% 4.8%
Operating margin 17.6% 18.8% 1.2%
Pretax margin 17.0% 19.3% -1.9%
Net margin 13.1% 30.9% -2.0%
FCF margin 16.8% 46.3% –
Operating cash flow margin 18.2% 57.0% –
Return on equity 26.9% 16.7% -10.5%
Return on assets 13.7% 6.0% -2.9%
Return on invested capital 20.9% 16.0% 2.1%
Return on capital employed 24.1% 30.6% 1.9%
Asset turnover 1.0x 0.6x 1.0x
Cash conversion (OCF / net income) 1.4x 1.8x –
Stock comp / revenue 0.4% 0.7% –

Financial Health

11 metrics
MetricAOSFIXLGN
Debt / assets 17.5% 0.5% 27.7%
Debt / equity 0.3x 0.0x 1.1x
Net debt / EBITDA 0.6x -2.0x 4.7x
Debt / FCF 1.0x 0.0x –
Liabilities / assets 49.5% 66.0% 73.9%
Equity / assets 50.5% 34.0% 26.1%
Interest coverage 31.5x 125.1x 0.4x
Current ratio 1.6x 1.1x 1.3x
Quick ratio 1.0x 0.4x 1.3x
Cash ratio 0.2x 0.4x 0.2x
Altman Z-score 6.20 5.70 1.83

Shareholder Returns

7 metrics
MetricAOSFIXLGN
Dividend yield 2.3% 0.2% –
Net buyback yield 3.7% 1.0% –
Shareholder yield 6.0% 1.2% –
Payout ratio (earnings) 39.6% 6.5% –
Payout ratio (FCF) 31.0% 4.3% –
Dividend growth (1Y) 2.2% 75.6% –
Dividend CAGR (3Y) 3.2% 57.9% –

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.

ConsensusAOSFIXLGN
Forward P/E 17.2xFY2026 28.2xFY2026 27.6xFY2026
EPS, next fiscal year $3.60FY2026 $45.66FY2026 $1.38FY2026
EPS growth, next FY -6.5%FY2026 +58.1%FY2026 –
EPS growth, the year after +15.0% +25.2% +79.0%
Revenue, next fiscal year $3.73BFY2026 $12.26BFY2026 $4.58BFY2026
Revenue growth, next FY -2.6%FY2026 +34.7%FY2026 +79.7%FY2026
Revenue growth, the year after +3.9% +33.8% +22.8%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersAOSFIXLGN
Held by institutions 91.9% 93.1% 100.0%
Institutions holding 614 1,353 265
Change in shares held, QoQ +7.1% +0.8% +17.6%
Institutions buying 315 742 194
Institutions selling 226 486 58
Buyers to sellers 1.39 1.53 3.34

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.

AOSFIXLGN
AOS 1.00 0.10 -0.01
FIX 0.10 1.00 0.69
LGN -0.01 0.69 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, AOS, FIX and LGN?

Comfort Systems Usa (FIX) is the largest by market capitalisation: Smith A O (AOS) $8.51B, Comfort Systems Usa (FIX) $46.24B, Legence (LGN) $2.92B.

Which stock is cheaper, AOS, FIX and LGN?

Smith A O (AOS) trades on the lowest price-to-earnings ratio (Smith A O (AOS) 17.0x, Comfort Systems Usa (FIX) 28.3x, Legence (LGN) -44.0x). On next year's consensus earnings, Smith A O (AOS) is cheapest (Smith A O (AOS) 17.2x, Comfort Systems Usa (FIX) 28.2x, Legence (LGN) 27.6x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Smith A O (AOS) grew revenue fastest over the trailing twelve months: Smith A O (AOS) +0.4%, Comfort Systems Usa (FIX) -36.6%.

Which company is more profitable?

Comfort Systems Usa (FIX) has the highest net margin (Smith A O (AOS) 13.1%, Comfort Systems Usa (FIX) 30.9%, Legence (LGN) -2.0%). On return on invested capital, Smith A O (AOS) leads (Smith A O (AOS) 20.9%, Comfort Systems Usa (FIX) 16.0%, Legence (LGN) 2.1%).

Which stock has performed better?

Over the past year Comfort Systems Usa (FIX) returned the most: Smith A O (AOS) -9.5%, Comfort Systems Usa (FIX) +32.0%, Legence (LGN) +3.4%. Over five years, Comfort Systems Usa (FIX) compounded fastest (Smith A O (AOS) -2.6%/yr, Comfort Systems Usa (FIX) +70.7%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Smith A O (AOS) has the highest dividend yield: Smith A O (AOS) 0.02%, Comfort Systems Usa (FIX) 0.00%, Legence (LGN) 0.00%. Legence (LGN) 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) 27.4%, Comfort Systems Usa (FIX) 56.9%, Legence (LGN) 73.1%). Volatility measures how widely the price swings, not the risk of the business.

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

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Comfort Systems Usa (FIX) leads on 6. 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.