FIX vs PRIM vs AOS Stock Comparison

Comfort Systems Usa, Primoris Services and Smith A O Prices as of Oct 26, 2026 Peers: Industry group
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FIX Comfort Systems Usa Inc
$1,244.19 -25.0% 1M +26.7% 1Y
Market cap
$45.11B
P/E
27.6x
Revenue (TTM)
$5.27B
Div. yield
0.00%
HVAC Industrials
6 wins
PRIM Primoris Services Corp
$66.45 -8.5% 1M -53.3% 1Y
Market cap
$3.71B
P/E
26.6x
Revenue (TTM)
$7.28B
Div. yield
0.00%
Utility Construction Industrials
1 win
AOS Smith A O Corp
$61.92 +5.6% 1M -10.1% 1Y
Market cap
$8.49B
P/E
17.0x
Revenue (TTM)
$3.80B
Div. yield
0.02%
HVAC Industrials
5 wins

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 5, Primoris Services 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionFIXPRIMAOSLeader
Larger companyMarket capitalisation $45.11B $3.71B $8.49B FIX
Cheaper on earningsLower P/E, profitable companies only 27.6x 26.6x 17.0x AOS
Cheaper on forward earningsLower price / next fiscal year consensus EPS 27.2x 29.4x 17.2x AOS
Faster revenue growthRevenue growth, trailing twelve months -36.6% +5.1% +0.4% PRIM
More profitableNet margin, trailing twelve months 30.9% 1.9% 13.1% FIX
Better return on capitalReturn on invested capital 16.0% 7.0% 20.9% AOS
Less leveragedLower net debt / EBITDA -2.0x 1.8x 0.6x FIX
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.02% AOS
Better 1-year returnPrice return, last 12 months +26.7% -53.3% -10.1% FIX
Better 5-year returnAnnualised price return, 5 years +72.0%/yr +20.4%/yr -0.7%/yr FIX
Less volatileAnnualised volatility, 1 year 56.9% 94.5% 27.4% AOS
Higher overall scoreMean of the five percentile scores vs peers 71/100 38/100 66/100 FIX

Percentile Scorecard

FIXPRIMAOS

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

AxisFIXPRIMAOS
Valuation 29 #40 of 56 61 #21 of 52 67 #19 of 56
Growth 86 #8 of 52 17 #31 of 37 39 #32 of 52
Profitability 82 #10 of 51 42 #22 of 37 100 #1 of 51
Financial Health 77 #14 of 58 45 #32 of 57 75 #15 of 58
Shareholder Returns 80 #9 of 41 27 #20 of 27 48 #22 of 41
Overall 71 38 66
  • FIX ranked among 60 companies in Construction Products
  • PRIM ranked among 57 companies in Construction Services
  • AOS ranked among 60 companies in Construction Products

Price Performance

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

Returns

PeriodFIXPRIMAOSSPY
1 month -25.0%-8.5%+5.6% -0.8%
3 months -28.1%-22.3%-0.9% +3.5%
6 months -30.6%-61.6%-4.3% +7.0%
Year to date +33.3%-46.5%-7.4% +12.2%
1 year +26.7%-53.3%-10.1% +13.0%
3 years +607.2%+127.9%-8.7% +86.3%
3 years, per year +92.0%+31.6%-3.0% +23.1%
5 years +1,401.9%+153.3%-3.6% +68.6%
5 years, per year +72.0%+20.4%-0.7% +11.0%
10 years +4,465.8%+239.0%+36.4% +258.0%
10 years, per year +46.5%+13.0%+3.2% +13.6%

Risk

MeasureFIXPRIMAOSSPY
Volatility, 1Y 56.9%94.5%27.4% 12.7%
Downside volatility, 1Y 62.3%120.4%26.5% 12.7%
Beta vs S&P 500, 1Y 2.591.860.71 1.00
Return / volatility, 1Y 0.47-0.56-0.37 1.02
Max drawdown, 5Y -46.1%-68.0%-43.4% -25.4%
From 52-week high -39.8%-67.3%-23.1% -1.8%
52-week high $2,066.51$202.92$80.47 $779.14
52-week low $876.19$64.99$55.34 $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.

MultipleFIXPRIMAOS
P/E now vs peer median 26.8xmedian 19.4x 25.7xmedian 25.7x 17.0xmedian 19.4x
P/S now vs peer median 8.3xmedian 1.5x 0.5xmedian 0.8x 2.2xmedian 1.5x
EV/EBITDA now vs peer median 39.5xmedian 12.1x 13.2xmedian 12.9x 11.7xmedian 12.1x
P/FCF now vs peer median 17.8xmedian 16.1x 40.6xmedian 22.5x 13.2xmedian 16.1x
P/B now vs peer median 13.1xmedian 2.9x 2.2xmedian 2.3x 4.6xmedian 2.9x
PEG now vs peer median 0.34median 0.93 6.44median 0.56 0.65median 0.93

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 monthsFIXPRIMAOS
Revenue $5.27B $7.28B $3.80B
Gross profit $1.42B $627.80M $1.47B
Operating income $989.51M $212.09M $668.70M
Net income $1.63B $139.54M $500.30M
Free cash flow $2.44B $88.00M $639.40M
EPS (diluted) $46.42 $2.59 $3.63
Cash & equivalents $2.16B $218.20M $181.30M
Total debt $49.56M $797.00M $637.50M
Shares (diluted) 35.15M 54.00M 137.86M
Enterprise value $39.07B $2.16B $7.74B

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
MetricFIXPRIMAOS
P/E 26.8x 25.7x 17.0x
P/FCF 17.8x 40.6x 13.2x
P/Operating cash flow 14.5x 18.4x 12.2x
P/S 8.3x 0.5x 2.2x
P/B 13.1x 2.2x 4.6x
P/Tangible book 15.6x 2.9x 6.7x
EV/EBITDA 39.5x 13.2x 11.7x
EV/EBIT 41.9x 19.6x 13.3x
EV/Revenue 7.9x 0.6x 2.3x
EV/FCF 17.0x 47.2x 13.9x
EV/Operating cash flow 13.8x 21.4x 12.8x
PEG (3Y EPS CAGR) 0.34 6.44 0.65

Growth

14 metrics
MetricFIXPRIMAOS
Revenue growth (1Y) -36.6% 5.1% 0.4%
Revenue CAGR (3Y) 2.0% 11.3% 0.6%
Gross profit growth (1Y) -27.6% -20.1% 1.4%
Gross profit CAGR (3Y) 15.4% 3.6% 1.3%
Operating income growth (1Y) -11.2% -44.8% -5.2%
Operating income CAGR (3Y) 37.8% -0.8% -2.5%
Net income growth (1Y) 94.8% -42.1% -3.5%
Net income CAGR (3Y) 78.4% 3.8% 22.3%
EPS growth (1Y) 96.0% -41.2% -0.3%
EPS CAGR (3Y) 79.7% 4.0% 26.2%
Operating cash flow growth (1Y) 223.9% -70.8% 16.1%
Operating cash flow CAGR (3Y) 71.3% 27.6% 5.0%
Free cash flow growth (1Y) 205.6% -82.4% 29.3%
Free cash flow CAGR (3Y) 67.9% 57.9% 6.2%

Profitability

14 metrics
MetricFIXPRIMAOS
Gross margin 26.8% 8.6% 38.6%
EBITDA margin 19.9% 4.3% 20.0%
Operating margin 18.8% 2.9% 17.6%
Pretax margin 19.3% 2.6% 17.0%
Net margin 30.9% 1.9% 13.1%
FCF margin 46.3% 1.2% 16.8%
Operating cash flow margin 57.0% 2.7% 18.2%
Return on equity 16.7% 8.5% 26.9%
Return on assets 6.0% 3.2% 13.7%
Return on invested capital 16.0% 7.0% 20.9%
Return on capital employed 30.6% 8.2% 24.1%
Asset turnover 0.6x 1.6x 1.0x
Cash conversion (OCF / net income) 1.8x 1.4x 1.4x
Stock comp / revenue 0.7% 0.3% 0.4%

Financial Health

11 metrics
MetricFIXPRIMAOS
Debt / assets 0.5% 17.2% 17.5%
Debt / equity 0.0x 0.5x 0.3x
Net debt / EBITDA -2.0x 1.8x 0.6x
Debt / FCF 0.0x 9.1x 1.0x
Liabilities / assets 66.0% 65.4% 49.5%
Equity / assets 34.0% 34.6% 50.5%
Interest coverage 125.1x – 31.5x
Current ratio 1.1x 1.2x 1.6x
Quick ratio 0.4x 1.1x 1.0x
Cash ratio 0.4x 0.1x 0.2x
Altman Z-score 5.56 2.93 6.19

Shareholder Returns

7 metrics
MetricFIXPRIMAOS
Dividend yield 0.2% 0.5% 2.3%
Net buyback yield 1.0% – 3.7%
Shareholder yield 1.2% 0.5% 6.0%
Payout ratio (earnings) 6.5% 12.5% 39.6%
Payout ratio (FCF) 4.3% 19.8% 31.0%
Dividend growth (1Y) 75.6% 15.4% 2.2%
Dividend CAGR (3Y) 57.9% 10.9% 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.

ConsensusFIXPRIMAOS
Forward P/E 27.2xFY2026 29.4xFY2026 17.2xFY2026
EPS, next fiscal year $45.66FY2026 $2.26FY2026 $3.60FY2026
EPS growth, next FY +58.1%FY2026 -59.8%FY2026 -6.5%FY2026
EPS growth, the year after +25.2% +117.7% +15.0%
Revenue, next fiscal year $12.26BFY2026 $6.78BFY2026 $3.73BFY2026
Revenue growth, next FY +34.7%FY2026 -10.4%FY2026 -2.6%FY2026
Revenue growth, the year after +33.8% +13.0% +3.9%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersFIXPRIMAOS
Held by institutions 93.1% 100.0% 91.9%
Institutions holding 1,352 445 614
Change in shares held, QoQ +0.8% +1.5% +7.1%
Institutions buying 741 243 315
Institutions selling 486 159 226
Buyers to sellers 1.52 1.53 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.

FIXPRIMAOS
FIX 1.00 0.43 0.10
PRIM 0.43 1.00 -0.01
AOS 0.10 -0.01 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, FIX, PRIM and AOS?

Comfort Systems Usa (FIX) is the largest by market capitalisation: Comfort Systems Usa (FIX) $45.11B, Primoris Services (PRIM) $3.71B, Smith A O (AOS) $8.49B.

Which stock is cheaper, FIX, PRIM and AOS?

Smith A O (AOS) trades on the lowest price-to-earnings ratio (Comfort Systems Usa (FIX) 27.6x, Primoris Services (PRIM) 26.6x, Smith A O (AOS) 17.0x). On next year's consensus earnings, Smith A O (AOS) is cheapest (Comfort Systems Usa (FIX) 27.2x, Primoris Services (PRIM) 29.4x, Smith A O (AOS) 17.2x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Primoris Services (PRIM) grew revenue fastest over the trailing twelve months: Comfort Systems Usa (FIX) -36.6%, Primoris Services (PRIM) +5.1%, Smith A O (AOS) +0.4%.

Which company is more profitable?

Comfort Systems Usa (FIX) has the highest net margin (Comfort Systems Usa (FIX) 30.9%, Primoris Services (PRIM) 1.9%, Smith A O (AOS) 13.1%). On return on invested capital, Smith A O (AOS) leads (Comfort Systems Usa (FIX) 16.0%, Primoris Services (PRIM) 7.0%, Smith A O (AOS) 20.9%).

Which stock has performed better?

Over the past year Comfort Systems Usa (FIX) returned the most: Comfort Systems Usa (FIX) +26.7%, Primoris Services (PRIM) -53.3%, Smith A O (AOS) -10.1%. Over five years, Comfort Systems Usa (FIX) compounded fastest (Comfort Systems Usa (FIX) +72.0%/yr, Primoris Services (PRIM) +20.4%/yr, Smith A O (AOS) -0.7%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Smith A O (AOS) has the highest dividend yield: Comfort Systems Usa (FIX) 0.00%, Primoris Services (PRIM) 0.00%, Smith A O (AOS) 0.02%.

Which stock is riskier?

By one-year price volatility, Smith A O (AOS) has been the steadiest (Comfort Systems Usa (FIX) 56.9%, Primoris Services (PRIM) 94.5%, Smith A O (AOS) 27.4%). Volatility measures how widely the price swings, not the risk of the business.

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

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.