FIX vs. LII: Comfort Systems USA vs. Lennox Stock Comparison

November 11, 2026

How do Comfort Systems USA (FIX) and Lennox (LII) stack up? This page sets them side by side across company profile, performance and risk, profitability, growth, financial strength, dividends, and valuation, with selected fundamentals also measured against each stock's industry-group peers.

Company Profile

Comfort Systems USA (FIX) and Lennox (LII) both fall under the Capital Goods industry group, but FIX is classified in Construction & Engineering while LII is classified in Building Products.

Company profile comparison for Comfort Systems USA (FIX) and Lennox (LII)
Profile Item	FIX	LII
Name	Comfort Systems USA Inc.	Lennox International Inc.
Country/Region	United States	United States
GICS Sector	Industrials	Industrials
GICS Industry Group	Capital Goods	Capital Goods
GICS Industry	Construction & Engineering	Building Products
GICS Sub-Industry	Construction & Engineering	Building Products
Market Capitalization	35.81 billion USD	11.70 billion USD
Currency	USD	USD
Exchange	NYSE	NYSE
Listing Date	June 27, 1997	July 29, 1999
Security Type	Common Stock	Common Stock

Price Performance

Cumulative Growth

FIX

LII

GSPC

Comfort Systems USA (FIX) vs. Lennox (LII), with S&P 500 (GSPC) for reference: Growth of a $10,000 investment over the past five years. Adjusted for dividends and splits.

Trailing Returns

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Trailing total returns for Comfort Systems USA (FIX) and Lennox (LII). Returns over one year are annualized.

Calendar-Year Returns

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Calendar-year total returns for Comfort Systems USA (FIX) and Lennox (LII). Each bar is that year's total return, measured year-end to year-end.

Performance Metrics

Price performance metrics for Comfort Systems USA (FIX) and Lennox (LII)
Metric	FIX	LII
Total Return (1Y)	15.31%	-27.83%
Total Return (3Y, Annualized)	81.62%	-2.32%
Total Return (5Y, Annualized)	62.48%	3.79%

Risk Profile

Drawdown History

FIX

LII

GSPC

Comfort Systems USA (FIX) vs. Lennox (LII), with S&P 500 (GSPC) for reference: Drawdown from the running peak over the past five years. Each line shows the decline from its prior peak; 0% marks a new high.

Return Distribution

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Distribution of monthly total returns for Comfort Systems USA (FIX) and Lennox (LII). Each bar is the share of months whose return fell in that 5% bucket.

Risk Metrics

Risk profile metrics for Comfort Systems USA (FIX) and Lennox (LII)
Metric	FIX	LII
Volatility (1Y, Annualized)	60.97%	41.59%
Beta (5Y)	1.68	1.18
Max Drawdown (5Y)	-53.28%	-49.95%
Avg. Volume (3M)	471.64K	563.34K

Risk-Adjusted Performance

Risk-Return Positioning

FIX and LII are plotted by 1-year volatility (risk) and 1-year return. The dashed Capital Allocation Line runs from the risk-free rate through the shared industry median.

Risk-Adjusted Metrics

Risk-adjusted metrics for Comfort Systems USA (FIX) and Lennox (LII)
Metric	FIX	LII
Sharpe Ratio (1Y)	0.18	-0.77
Sortino Ratio (1Y)	0.25	-0.96

Profitability

ROE (TTM)

Both Comfort Systems USA (FIX) at 58.61% and Lennox (LII) at 62.82% turn shareholders’ equity into profit at rates above their industry benchmark ranges for ROE. That is a strong capital-efficiency signal, though leverage and the equity base still matter.

FIX

Capital Goods industry group

58.61%

FIX: 58.61%
Max: 40.55%
Q3: 19.29%
Median: 12.12%
Q1: 4.08%
Min: -17.12%

LII

Capital Goods industry group

62.82%

LII: 62.82%
Max: 40.55%
Q3: 19.29%
Median: 12.12%
Q1: 4.08%
Min: -17.12%

Comfort Systems USA (FIX) vs. Lennox (LII): A comparison of their ROE against the Capital Goods industry group benchmark.

Net Margin (TTM)

For every dollar of sales, both Comfort Systems USA (FIX) at 13.01% and Lennox (LII) at 13.76% retain more as net profit than most peers, landing in the top net margin quartile of their industries.

FIX

Capital Goods industry group

13.01%

Max: 27.47%
FIX: 13.01%
Q3: 12.10%
Median: 6.30%
Q1: 1.40%
Min: -12.89%

LII

Capital Goods industry group

13.76%

Max: 27.47%
LII: 13.76%
Q3: 12.10%
Median: 6.30%
Q1: 1.40%
Min: -12.89%

Comfort Systems USA (FIX) vs. Lennox (LII): A comparison of their net margin against the Capital Goods industry group benchmark.

Operating Margin (TTM)

Lennox (LII) at 20.57% operates in the top operating margin quartile, ahead of Comfort Systems USA (FIX) at 16.47%, which runs around its industry’s norm.

FIX

Capital Goods industry group

16.47%

Max: 36.60%
Q3: 18.33%
FIX: 16.47%
Median: 11.12%
Q1: 5.14%
Min: -12.63%

LII

Capital Goods industry group

20.57%

Max: 36.60%
LII: 20.57%
Q3: 18.33%
Median: 11.12%
Q1: 5.14%
Min: -12.63%

Comfort Systems USA (FIX) vs. Lennox (LII): A comparison of their operating margin against the Capital Goods industry group benchmark.

Profitability Metrics

Profitability metrics for Comfort Systems USA (FIX) and Lennox (LII)
Metric	FIX	LII
ROE (TTM)	58.61%	62.82%
ROA (TTM)	16.88%	15.93%
Net Margin (TTM)	13.01%	13.76%
Operating Margin (TTM)	16.47%	20.57%
Gross Margin (TTM)	25.70%	32.62%

Growth

Revenue Growth

Comfort Systems USA (FIX) at 29.52% sits in the top revenue growth quartile, while Lennox (LII) at -2.73% is in the bottom quartile, showing a clear gap in revenue momentum.

Comfort Systems USA (FIX) vs. Lennox (LII): A comparison of their Revenue Growth across different time periods.

EPS Growth

Comfort Systems USA (FIX) at 97.81% sits in the top EPS growth quartile, while Lennox (LII) at 1.11% is closer to the peer norm — faster per-share earnings growth for FIX.

Comfort Systems USA (FIX) vs. Lennox (LII): A comparison of their EPS Growth across different time periods.

Growth Metrics

Growth metrics for Comfort Systems USA (FIX) and Lennox (LII)
Metric	FIX	LII
Revenue Growth (YoY)	29.52%	-2.73%
Revenue Growth (3Y CAGR)	30.03%	3.26%
EPS Growth (YoY)	97.81%	1.11%
EPS Growth (3Y CAGR)	61.78%	17.97%

Financial Strength

Current Ratio (MRQ)

Both Comfort Systems USA (FIX) at 1.15 and Lennox (LII) at 1.21 run current ratio in the tighter-liquidity quartile of industry peers, leaving thinner cushions against current liabilities than typical competitors.

FIX

Capital Goods industry group

1.15

Max: 5.22
Q3: 2.95
Median: 2.08
Q1: 1.43
FIX: 1.15
Min: 0.36

LII

Capital Goods industry group

1.21

Max: 5.22
Q3: 2.95
Median: 2.08
Q1: 1.43
LII: 1.21
Min: 0.36

Comfort Systems USA (FIX) vs. Lennox (LII): A comparison of their current ratio against the Capital Goods industry group benchmark.

Debt / Equity (MRQ)

Comfort Systems USA (FIX) at 0.11 keeps leverage in the lower quartile, while Lennox (LII) at 1.58 sits in the higher-leverage quartile.

FIX

Capital Goods industry group

0.11

Max: 2.33
Q3: 1.12
Median: 0.60
Q1: 0.29
FIX: 0.11
Min: 0.00

LII

Capital Goods industry group

1.58

Max: 2.33
LII: 1.58
Q3: 1.12
Median: 0.60
Q1: 0.29
Min: 0.00

Comfort Systems USA (FIX) vs. Lennox (LII): A comparison of their debt-to-equity ratio against the Capital Goods industry group benchmark.

Financial Strength Metrics

Financial strength metrics for Comfort Systems USA (FIX) and Lennox (LII)
Metric	FIX	LII
Current Ratio (MRQ)	1.15	1.21
Debt / Equity (MRQ)	0.11	1.58
Net Debt / EBITDA	-0.81	1.73

Dividends

Dividend Yield (TTM)

Lennox (LII) at 1.53% delivers top-quartile income for its industry, while Comfort Systems USA (FIX) at 0.31% pays a more typical yield — both are credible income propositions, LII the richer one.

FIX

Capital Goods industry group

0.31%

Max: 2.66%
Q3: 1.14%
FIX: 0.31%
Median: 0.24%
Q1: 0.00%
Min: 0.00%

LII

Capital Goods industry group

1.53%

Max: 2.66%
LII: 1.53%
Q3: 1.14%
Median: 0.24%
Q1: 0.00%
Min: 0.00%

Comfort Systems USA (FIX) vs. Lennox (LII): A comparison of their dividend yield against the Capital Goods industry group benchmark.

Dividend Payout Ratio (TTM)

Both Comfort Systems USA (FIX) at 6.48% and Lennox (LII) at 24.68% keep payout ratio within their industries’ typical mid-ranges — dividend policies that share earnings without consuming too much of them.

FIX

Capital Goods industry group

6.48%

Max: 67.39%
Q3: 28.02%
Median: 6.86%
FIX: 6.48%
Q1: 0.00%
Min: 0.00%

LII

Capital Goods industry group

24.68%

Max: 67.39%
Q3: 28.02%
LII: 24.68%
Median: 6.86%
Q1: 0.00%
Min: 0.00%

Comfort Systems USA (FIX) vs. Lennox (LII): A comparison of their payout ratio against the Capital Goods industry group benchmark.

Dividend Metrics

Dividend metrics for Comfort Systems USA (FIX) and Lennox (LII)
Metric	FIX	LII
Dividend Yield (TTM)	0.31%	1.53%
Dividend Payout Ratio (TTM)	6.48%	24.68%

Valuation

P/E Ratio (TTM)

Lennox (LII) at 15.47 sits in the cheaper P/E ratio quartile, while Comfort Systems USA (FIX) at 21.98 is closer to its industry’s usual earnings multiple — a discount for LII, though growth and earnings durability still matter.

FIX

Capital Goods industry group

21.98

Max: 59.38
Q3: 35.92
Median: 25.41
FIX: 21.98
Q1: 19.47
Min: 3.03

LII

Capital Goods industry group

15.47

Max: 59.38
Q3: 35.92
Median: 25.41
Q1: 19.47
LII: 15.47
Min: 3.03

Comfort Systems USA (FIX) vs. Lennox (LII): A comparison of their P/E ratio against the Capital Goods industry group benchmark.

P/S Ratio (TTM)

On P/S ratio, both Comfort Systems USA (FIX) at 2.85 and Lennox (LII) at 2.15 are priced roughly in line with their industries — neither looks cheap nor rich on a sales basis.

FIX

Capital Goods industry group

2.85

Max: 7.54
Q3: 3.76
FIX: 2.85
Median: 2.15
Q1: 1.03
Min: 0.03

LII

Capital Goods industry group

2.15

Max: 7.54
Q3: 3.76
Median: 2.15
LII: 2.15
Q1: 1.03
Min: 0.03

Comfort Systems USA (FIX) vs. Lennox (LII): A comparison of their P/S ratio against the Capital Goods industry group benchmark.

P/B Ratio (MRQ)

Both look rich against book: Lennox (LII) at 8.88 sits in the upper P/B ratio quartile, and Comfort Systems USA (FIX) at 10.66 prices even higher, above its industry range.

FIX

Capital Goods industry group

10.66

FIX: 10.66
Max: 9.66
Q3: 5.00
Median: 3.12
Q1: 1.81
Min: -1.08

LII

Capital Goods industry group

8.88

Max: 9.66
LII: 8.88
Q3: 5.00
Median: 3.12
Q1: 1.81
Min: -1.08

Comfort Systems USA (FIX) vs. Lennox (LII): A comparison of their P/B ratio against the Capital Goods industry group benchmark.

Valuation Metrics

Valuation metrics for Comfort Systems USA (FIX) and Lennox (LII)
Metric	FIX	LII
P/E Ratio (TTM)	21.98	15.47
P/S Ratio (TTM)	2.85	2.15
P/B Ratio (MRQ)	10.66	8.88
Free Cash Flow Yield (TTM)	5.94%	3.14%