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Comfort Systems USA Inc (FIX) stock analysis

FIXNYSEElectrical WorkFiscal year ends December 31
Financials through Q3 FY2026, quarter ended Sep 30, 2026Last filing: 10-Q on Oct 22, 2026Score 19/3045% above fair value
$1161.63+55.70 (+5.04%)

Close on Nov 11, 2026Market cap $40.64BP/E 25.1Yield 0.17%

StockData Score

Prices as of Nov 11, 2026How the score works

Value1Growth3Performance5Health6Dividend4

Solid19 of 30 checks passed

Comfort Systems USA passes 19 of the 30 checks behind our score; 1 could not be run for lack of data and count as not passed. Each dot in the shape is one check — hover it for the numbers.

Valuation
1/6
Growth
3/6
Past performance
5/6
Financial health
6/6
Dividend
4/6

What stands out

  • Return on equity over 15%

    Return on equity was 58.6% over the last twelve months and averaged 31.8% over five years.

  • Return on capital over 10%

    Return on invested capital was 38.9%, above the 10% that usually covers the cost of capital.

  • Low debt

    Debt is 1.5% of shareholders' equity, under the 40% we consider low.

  • Earnings grew over 5 years

    Net income grew 46.8% a year on average over the last five fiscal years.

What to watch

  • Margin of safety under 20%

    The price is 45.0% above fair value, so there is no margin of safety.

  • Trading above fair value

    The share price of $1161.63 is above our fair value estimate of $801.15.

  • Revenue growing under 10% a year

    Revenue grew -23.8% a year over the last three fiscal years, short of the 10% we look for.

  • P/E above the industry

    Comfort Systems USA's P/E of 25.1 is above the Construction Special Trade Contractors median of 25.1.

Valuation1/6
  • P/E below its 5-year median

    Comfort Systems USA's P/E of 25.1 is below its own 5-year median of 28.6.

  • P/E above the industry

    Comfort Systems USA's P/E of 25.1 is above the Construction Special Trade Contractors median of 25.1.

  • EV/EBITDA above its 5-year median

    Comfort Systems USA's EV/EBITDA of 38.9 is above its 5-year median of 21.7.

  • P/B above the industry

    Comfort Systems USA's price-to-book of 12.19 is above the Construction Special Trade Contractors median of 3.14.

  • Trading above fair value

    The share price of $1161.63 is above our fair value estimate of $801.15.

  • Margin of safety under 20%

    The price is 45.0% above fair value, so there is no margin of safety.

Growth3/6
  • Revenue growing under 10% a year

    Revenue grew -23.8% a year over the last three fiscal years, short of the 10% we look for.

  • EPS growing 10%+ a year

    Diluted EPS grew 61.8% a year over the last three fiscal years.

  • Earnings growth accelerating

    Net income grew 94.8% over the last twelve months, against a 5-year average of 46.8% a year.

  • Growing faster than the industry

    Revenue grew 50.7% over the last twelve months; the Construction Special Trade Contractors median is 10.2%.

  • Company guidance

    No outlook found in earnings releases from the last twelve months.

  • Gross margin slipping

    Gross margin was 11.3% over the last twelve months, against 23.5% a year earlier.

Past performance5/6
  • Return on equity over 15%

    Return on equity was 58.6% over the last twelve months and averaged 31.8% over five years.

  • Return on capital over 10%

    Return on invested capital was 38.9%, above the 10% that usually covers the cost of capital.

  • Return on equity above the industry

    Comfort Systems USA's return on equity of 58.6% is above the Construction Special Trade Contractors median of -1.8%.

  • Earnings grew over 5 years

    Net income grew 46.8% a year on average over the last five fiscal years.

  • Net margin below its 5-year average

    Net margin was 13.0% over the last twelve months, against a 5-year average of 16.0%.

  • Net margin above the industry

    Comfort Systems USA's net margin of 13.0% is above the Construction Special Trade Contractors median of -7.4%.

Financial health6/6
  • Low debt

    Debt is 1.5% of shareholders' equity, under the 40% we consider low.

  • Debt falling against equity

    Debt to equity fell from 33.8% five years ago to 1.5%.

  • Debt covered by cash flow

    Operating cash flow over the last twelve months equals 6068% of total debt.

  • Interest well covered

    Operating income covers interest expense 125.1 times.

  • Short-term assets cover short-term debts

    Current assets are 1.15 times current liabilities.

  • Low bankruptcy risk

    The Altman Z-score is 6.03; above 3 is the safe zone and below 1.8 the distress zone.

Dividend4/6
  • Pays a dividend

    Comfort Systems USA paid dividends worth 0.3% of the share price over the last twelve months.

  • Yield below Treasuries

    The 0.3% yield is below the 4.4% on a 1-year Treasury.

  • Yield below the top quarter

    The top quarter of US dividend payers yield 3.8% or more; Comfort Systems USA yields 0.3%.

  • Dividend not cut

    The dividend per share has not fallen by more than 10% in any of the last 10 fiscal years.

  • Covered by earnings

    Dividends take 6.5% of net income.

  • Covered by free cash flow

    Dividends take 4.3% of free cash flow.

Scores of similar companies

Our estimate per share

$801.15

The share price is 45% above this estimate.

20%+ below
Near fair value
20%+ above
$1,161.63Price$801.15Fair value
MethodMultiple usedOwn 5Y medianIndustry medianValue per shareWeight
P/E26.9×28.6×25.1×$1,244.7944%
EV/EBITDA17.4×21.7×13.0×$552.3339%
Earnings power12.1% cost of equity––$198.6517%
Fair value$801.15100%

Valuation over time

Using the earnings and balance sheet published at each date, not today's.

  • P/E at month end
  • Own 5-year median 28.6
  • Construction Special Trade Contractors median 25.1

An estimate from reported numbers and market multiples, not a price target or investment advice. It can be far off for companies whose profits are about to change sharply.

Market risk

From the past year of daily prices.

Liquidity

Low risk

Average value traded per day
$841.22M
Value traded per 1% price move
$234.76M

Downside

High risk

Typical loss in a bad month
32.1%
Volatility (annualized)
61%
Sharpe ratio, 1 year
0.24
Beta to the S&P 500 (5Y)
1.45

Typical bad-month loss, week by week

25%: high

Margins

Share of revenue, fiscal years 2011 to 2025

Gross margin

22.0%+2.9 pts over 5 years

Operating margin

11.4%+4.7 pts over 5 years

Net margin

55.8%+50.6 pts over 5 years

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