Overall verdict
Buy
7.9/10
1-year performance
+98.66%
Score breakdown
Up 98.7% over 1 year, 67% of the 52-week range.
Strongest: Profitability 10.0/10. Weakest: Shareholder return 3.0/10.
10 analysts, target +0.3% vs the price.
Comfort Systems USA, Inc., together with its subsidiaries, provides mechanical and electrical installation, renovation, maintenance, repair, and replacement services for the mechanical and electrical services industry in the United States. The company operates through two segments: Mechanical and Electrical. It offers heating, ventilation, and air conditioning systems, as well as plumbing, electrical, piping and controls, off-site construction, monitoring, and fire protection.
The company is also involved in the design, engineering, integration, installation, and start-up of mechanical, electrical, and plumbing (MEP) and related systems in new buildings; and renovation, expansion, maintenance, monitoring, repair, and replacement of systems in existing buildings. In addition, it provides remote monitoring of power usage, temperature, pressure, humidity and air flow for MEP and other building systems.
The company serves building owners and developers, general contractors, architects, consulting engineers, and property managers in the commercial, industrial, and institutional markets. Comfort Systems USA, Inc. was founded in 1917 and is headquartered in Houston, Texas.
Sector
Industrials
Industry
Construction and Engineering
Primary listing
Nyse
United States
CEO
Brian Lane
Founded
1917
Employees
22 700
Revenue / employee
400 953 USD
Next earnings
October 22, 2026 (estimated)
Institutional holders
- BlackRock, Inc.9.74%
- VANGUARD CAPITAL MANAGEMENT LLC6.59%
- VANGUARD PORTFOLIO MANAGEMENT LLC5.35%
- FMR LLC4.76%
- STATE STREET CORP4.41%
- GEODE CAPITAL MANAGEMENT, LLC3.30%
- AQR CAPITAL MANAGEMENT LLC3.04%
- JPMORGAN CHASE & CO2.40%
- Capital World Investors2.06%
- Other institutions51.60%
- Rest of the register6.75%
1343 13F filings as of June 30, 2026: US managers above $100M, filed up to 45 days after quarter end. No insiders, no retail. A share on loan is declared by its lender and by whoever bought it from the short seller, so the total can exceed 100%.
Research uses the underlying stock’s market history. The purchase quote is calculated separately when you review your order.
52-week high
2073.99 USD
52-week low
757.00 USD
1-year performance
98.66%
Rising
Year-to-date performance
73.26%
Rising
Drawdown
-20.91%
Marked drawdown
Position in the 52-week range
67% of range
Against the world ETF
Over 17 years, from September 2009 to August 2026, the share did not do better than the world ETF once risk is accounted for. It earned much more, but shaking 3.1 times harder: once that risk is counted, its lead is thin.
10,000 € placed at the end of September 2009 are worth today
| Comfort Systems USA | 1 981 534 € |
| World ETF | 74 620 € |
| S&P 500 | 123 025 € |
| Risk-free placement | 11 288 € |
The risk
- Shaking:the share moves 3.1 times as much as the world ETF.
- Worst fall:-49 % between January 2025 and April 2025. 10,000 € placed at the top fell to 5 104 €. The world ETF, at worst: -34 %. Back to its high in 3 months.
Comfort Systems USA earned 27 times as much as the world ETF since 2009
Value of 10,000 euros placed at the end of September 2009, dividends reinvested, in euros
- Comfort Systems USA: 1 981 534 €
- World ETF: 74 620 €
- S&P 500: 123 025 €
- Risk-free placement: 11 288 €
Based on past performance. This is not a recommendation.
Range: 874.40 USD - 886.12 USD (comparables only)
The price implies growth of 8.70% per year; the company grows at 25.00%.
Quality and profitability
10.0/10Gross margin 25.1%, net margin 12.8%, ROIC 49.6%, ROE 55.3%.
Net margin
12.78%
Exceptional
Sector 4.28%|S&P 12.97%
Gross margin
25.08%
Exceptional
Return on equity (ROE)
55.29%
Exceptional
Sector 10.63%|S&P 16.52%
Return on invested capital (ROIC)
49.56%
Exceptional
Free cash flow margin (FCF)
19.20%
Exceptional
Profit-to-cash conversion (FCF conversion)
1.50x
Exceptional
Margin stability
2.2 pts
Steady
Revenue to net income
Growth
9.3/10Revenue up 50.3% over 1 year, 26.1% a year over 5, EPS 47.9% a year over 5.
Revenue (trailing 12 months)
11.2Md USD
Revenue growth (1y)
50.26%
Hyper-growth
Revenue growth (3y)
119.83%
Strong
EPS growth (1y)
91.92%
Hyper-growth
EPS CAGR (5y)
47.85%
Exceptional
EPS revisions (3 months)
13.58%
Sharply revised up
Valuation
4.1/10P/E 40.4x, forward P/E 33.8x, EV/EBITDA 27.7x, PEG 0.84. The multiple sits in the 90th percentile of its own 5-year history.
P/E (TTM)
40.4x
Very expensive
Sector 17.6x|S&P 23.0x
Forward P/E
33.8x
Expensive
EV / EBITDA
27.7x
Very expensive
Sector 11.4x|S&P 14.5x
PEG
0.84
Growth unpriced
Sector 0.68|S&P 0.86
Fair value (reverse DCF)
880.26 USD
Deeply overvalued
P/E vs its own 5-year history
among the 10% highest valuations
At its historical high
Market cap
57.2Md USD
Financial strength
10.0/10Cash covers 515.4% of the debt, net debt/EBITDA -0.3x.
Net debt / EBITDA
-0.3x
Very solid
Gearing (net debt / equity)
-47.76%
Net cash
Cash
1.9Md USD
Cash / market cap
3.33%
Tight
Cash / total debt
515.37%
Net cash
Interest coverage
79.1x
Very solid
Net debt
-1.5Md USD
Equity
3.2Md USD
Closed daily candles, 2 years
Last close on September 24, 2026: 1,643.39 USD
- MM201,601.44
- MM501,665.14
- MM2001,535.46
- RSI 1451.3
Top panel: closed candles, 20, 50 and 200-day moving averages, with volume in grey. Bottom panel: 14-day RSI with dashed 30 and 70 levels.
200-day average slope, 1 month
+4.70%
200-day average slope, 3 months
+20.06%
50-day average slope, 1 month
-6.09%
Price structure
Lower lows
Bullish RSI divergence
No
20-day volatility
2.87 % per day
Volatility change
-19.39%
Forecasts by fiscal year
| Fiscal year | EPS | Normalised EPS | Revenue | EBITDA | Net income |
|---|---|---|---|---|---|
| 2026 | 48.57 (8) | 49.01 (10) | 12 982 (10) | 2 392 (10) | 1 713 (9) |
| 2027 | 59.62 (9) | 60.18 (10) | 15 446 (10) | 2 896 (10) | 2 097 (9) |
Amounts in millions of USD, EPS in USD per share. In brackets, the number of analysts. Consensus as of August 31, 2026.
Same sub-industry: 409 companies behind the medians.
| # | Company | Code | Country | Overall / 10 | Fundamentals / 10 | Mkt cap | P/E | Net margin | Revenue growth | ROIC | Net debt / EBITDA | FCF yield | 1-year perf. |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | FIX | 7.9 | 7.4 | 57.2Md USD | 40.4x | 12.8 % | 50.3 % | 49.6 % | -0.3x | 3.8 % | 98.7 % | ||
| 2 | EME | 7.7 | 7.8 | 33.2Md USD | 23.3x | 7.7 % | 19.8 % | 35.3 % | -0.4x | 3.5 % | 15.3 % | ||
| 3 | DG | 7.2 | 7.6 | 71.1Md USD | 12.3x | 6.7 % | 4.0 % | 8.4 % | 1.6x | 13.3 % | -5.8 % | ||
| 4 | ACS | 6.5 | 5.8 | 28.1Md USD | 24.3x | 1.9 % | 93.2 % | 5.7 % | 0.7x | 10.1 % | 36.7 % | ||
| 5 | HOT | 6.4 | 6.5 | 34.0Md USD | 34.0x | 2.2 % | 13.6 % | 9.8 % | 0.7x | 6.3 % | 72.3 % | ||
| 6 | PWR | 6.4 | 5.1 | 95.5Md USD | 72.7x | 4.0 % | 41.1 % | 9.4 % | 2.3x | 2.5 % | 60.8 % | ||
| 7 | 601668 | 5.7 | N/A | 25.5Md USD | 5.6x | 1.5 % | -16.1 % | — | 5.4x | — | -23.2 % | ||
| 8 | 500510 | 5.1 | 3.8 | 57.8Md USD | 33.0x | 6.2 % | 6.7 % | — | 1.2x | — | 4.6 % | ||
| 9 | FER | 4.8 | 4.7 | 39.6Md USD | 57.8x | 6.0 % | 5.2 % | 3.8 % | 4.4x | 6.0 % | -2.9 % |
