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Side-by-side financial comparison of COMFORT SYSTEMS USA INC (FIX) and SELECT MEDICAL HOLDINGS CORP (SEM). Click either name above to swap in a different company.
COMFORT SYSTEMS USA INC is the larger business by last-quarter revenue ($2.6B vs $1.4B, roughly 1.9× SELECT MEDICAL HOLDINGS CORP). COMFORT SYSTEMS USA INC runs the higher net margin — 12.5% vs 4.5%, a 8.0% gap on every dollar of revenue. On growth, COMFORT SYSTEMS USA INC posted the faster year-over-year revenue change (41.7% vs 5.0%). Over the past eight quarters, COMFORT SYSTEMS USA INC's revenue compounded faster (31.2% CAGR vs 5.3%).
Comfort Systems USA, Inc. is an American company that provides mechanical and electrical contracting services, primarily HVAC, plumbing, piping and controls, off-site construction, monitoring and fire protection, and installation and servicing of electrical systems.
Select Medical is a healthcare company based in Pennsylvania. It owns long-term acute care and inpatient rehabilitation hospitals, as well as occupational health and physical therapy clinics. Select Medical is a subsidiary of Select Medical Holdings, which is listed on the New York Stock Exchange.
FIX vs SEM — Head-to-Head
Income Statement — Q4 FY2025 vs Q1 FY2026
| Metric | | |
|---|---|---|
| Revenue | $2.6B | $1.4B |
| Net Profit | $330.8M | $63.8M |
| Gross Margin | 25.5% | — |
| Operating Margin | 16.1% | 6.9% |
| Net Margin | 12.5% | 4.5% |
| Revenue YoY | 41.7% | 5.0% |
| Net Profit YoY | 126.8% | -14.7% |
| EPS (diluted) | $9.35 | $0.35 |
Green = leading value per metric. Periods may differ when fiscal calendars don't align.
8-Quarter Revenue & Profit Trend
Side-by-side quarterly history. Quarters aligned by calendar period so offset fiscal years line up.
| Q1 26 | — | $1.4B | ||
| Q4 25 | $2.6B | $1.4B | ||
| Q3 25 | $2.5B | $1.4B | ||
| Q2 25 | $2.2B | $1.3B | ||
| Q1 25 | $1.8B | $1.4B | ||
| Q4 24 | $1.9B | $1.3B | ||
| Q3 24 | $1.8B | $1.3B | ||
| Q2 24 | $1.8B | $1.3B |
| Q1 26 | — | $63.8M | ||
| Q4 25 | $330.8M | $20.2M | ||
| Q3 25 | $291.6M | $28.8M | ||
| Q2 25 | $230.8M | $40.6M | ||
| Q1 25 | $169.3M | $56.7M | ||
| Q4 24 | $145.9M | $-16.1M | ||
| Q3 24 | $146.2M | $55.6M | ||
| Q2 24 | $134.0M | $77.6M |
| Q1 26 | — | — | ||
| Q4 25 | 25.5% | — | ||
| Q3 25 | 24.8% | — | ||
| Q2 25 | 23.5% | — | ||
| Q1 25 | 22.0% | — | ||
| Q4 24 | 23.2% | — | ||
| Q3 24 | 21.1% | — | ||
| Q2 24 | 20.1% | — |
| Q1 26 | — | 6.9% | ||
| Q4 25 | 16.1% | 4.6% | ||
| Q3 25 | 15.5% | 5.4% | ||
| Q2 25 | 13.8% | 6.5% | ||
| Q1 25 | 11.4% | 8.3% | ||
| Q4 24 | 12.1% | 1.6% | ||
| Q3 24 | 11.2% | 4.3% | ||
| Q2 24 | 10.2% | 5.8% |
| Q1 26 | — | 4.5% | ||
| Q4 25 | 12.5% | 1.4% | ||
| Q3 25 | 11.9% | 2.1% | ||
| Q2 25 | 10.6% | 3.0% | ||
| Q1 25 | 9.2% | 4.2% | ||
| Q4 24 | 7.8% | -1.2% | ||
| Q3 24 | 8.1% | 4.4% | ||
| Q2 24 | 7.4% | 6.1% |
| Q1 26 | — | $0.35 | ||
| Q4 25 | $9.35 | $0.17 | ||
| Q3 25 | $8.25 | $0.23 | ||
| Q2 25 | $6.53 | $0.32 | ||
| Q1 25 | $4.75 | $0.44 | ||
| Q4 24 | $4.08 | $-0.12 | ||
| Q3 24 | $4.09 | $0.43 | ||
| Q2 24 | $3.74 | $0.60 |
Balance Sheet & Financial Strength
Snapshot of each company's liquidity, leverage and book value from the latest quarter.
| Metric | | |
|---|---|---|
| Cash + ST InvestmentsLiquidity on hand | $981.9M | $25.7M |
| Total DebtLower is stronger | $145.2M | $1.8B |
| Stockholders' EquityBook value | $2.4B | $2.1B |
| Total Assets | $6.4B | $6.0B |
| Debt / EquityLower = less leverage | 0.06× | 0.88× |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | — | $25.7M | ||
| Q4 25 | $981.9M | $26.5M | ||
| Q3 25 | $860.5M | $60.1M | ||
| Q2 25 | $331.7M | $52.3M | ||
| Q1 25 | $204.8M | $53.2M | ||
| Q4 24 | $549.9M | $59.7M | ||
| Q3 24 | $415.6M | $191.5M | ||
| Q2 24 | $199.4M | $111.2M |
| Q1 26 | — | $1.8B | ||
| Q4 25 | $145.2M | $1.8B | ||
| Q3 25 | $136.0M | $1.7B | ||
| Q2 25 | $73.0M | $1.8B | ||
| Q1 25 | $67.8M | $1.8B | ||
| Q4 24 | $68.3M | $1.7B | ||
| Q3 24 | $62.3M | $3.1B | ||
| Q2 24 | $73.4M | $3.6B |
| Q1 26 | — | $2.1B | ||
| Q4 25 | $2.4B | $1.7B | ||
| Q3 25 | $2.2B | $1.7B | ||
| Q2 25 | $2.0B | $1.7B | ||
| Q1 25 | $1.8B | $1.7B | ||
| Q4 24 | $1.7B | $1.7B | ||
| Q3 24 | $1.6B | $1.9B | ||
| Q2 24 | $1.5B | $1.4B |
| Q1 26 | — | $6.0B | ||
| Q4 25 | $6.4B | $5.9B | ||
| Q3 25 | $5.8B | $5.7B | ||
| Q2 25 | $5.1B | $5.7B | ||
| Q1 25 | $4.6B | $5.7B | ||
| Q4 24 | $4.7B | $5.6B | ||
| Q3 24 | $4.4B | $8.0B | ||
| Q2 24 | $4.2B | $7.9B |
| Q1 26 | — | 0.88× | ||
| Q4 25 | 0.06× | 1.06× | ||
| Q3 25 | 0.06× | 1.03× | ||
| Q2 25 | 0.04× | 1.10× | ||
| Q1 25 | 0.04× | 1.03× | ||
| Q4 24 | 0.04× | 1.01× | ||
| Q3 24 | 0.04× | 1.62× | ||
| Q2 24 | 0.05× | 2.54× |
Cash Flow & Capital Efficiency
How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.
| Metric | | |
|---|---|---|
| Operating Cash FlowLast quarter | $468.5M | — |
| Free Cash FlowOCF − Capex | $402.4M | — |
| FCF MarginFCF / Revenue | 15.2% | — |
| Capex IntensityCapex / Revenue | 2.5% | — |
| Cash ConversionOCF / Net Profit | 1.42× | — |
| TTM Free Cash FlowTrailing 4 quarters | $1.0B | — |
8-quarter trend — quarters aligned by calendar period.
| Q1 26 | — | — | ||
| Q4 25 | $468.5M | $64.3M | ||
| Q3 25 | $553.3M | $175.3M | ||
| Q2 25 | $252.5M | $110.3M | ||
| Q1 25 | $-88.0M | $-3.5M | ||
| Q4 24 | $210.5M | $125.4M | ||
| Q3 24 | $302.2M | $181.0M | ||
| Q2 24 | $189.9M | $278.2M |
| Q1 26 | — | — | ||
| Q4 25 | $402.4M | $5.2M | ||
| Q3 25 | $517.9M | $122.2M | ||
| Q2 25 | $221.2M | $45.6M | ||
| Q1 25 | $-110.2M | $-55.8M | ||
| Q4 24 | $169.8M | $62.0M | ||
| Q3 24 | $280.1M | $130.3M | ||
| Q2 24 | $166.5M | $222.6M |
| Q1 26 | — | — | ||
| Q4 25 | 15.2% | 0.4% | ||
| Q3 25 | 21.1% | 9.0% | ||
| Q2 25 | 10.2% | 3.4% | ||
| Q1 25 | -6.0% | -4.1% | ||
| Q4 24 | 9.1% | 4.7% | ||
| Q3 24 | 15.5% | 10.2% | ||
| Q2 24 | 9.2% | 17.4% |
| Q1 26 | — | — | ||
| Q4 25 | 2.5% | 4.2% | ||
| Q3 25 | 1.4% | 3.9% | ||
| Q2 25 | 1.4% | 4.8% | ||
| Q1 25 | 1.2% | 3.9% | ||
| Q4 24 | 2.2% | 4.8% | ||
| Q3 24 | 1.2% | 4.0% | ||
| Q2 24 | 1.3% | 4.3% |
| Q1 26 | — | — | ||
| Q4 25 | 1.42× | 3.19× | ||
| Q3 25 | 1.90× | 6.09× | ||
| Q2 25 | 1.09× | 2.72× | ||
| Q1 25 | -0.52× | -0.06× | ||
| Q4 24 | 1.44× | — | ||
| Q3 24 | 2.07× | 3.25× | ||
| Q2 24 | 1.42× | 3.59× |
Financial Flow Comparison
Revenue → gross profit → operating profit → net profit for each company.
Revenue Breakdown by Segment
FIX
| Electrical Segment | $823.7M | 31% |
| Manufacturing Customer | $542.7M | 21% |
| Existing Building Construction | $491.4M | 19% |
| Healthcare Sector Customer | $220.8M | 8% |
| Service Projects | $153.0M | 6% |
| Education | $137.5M | 5% |
| Government Customer | $131.0M | 5% |
| Office Building Customer | $88.2M | 3% |
| Other Customer | $40.7M | 2% |
| Multi Family And Residential | $33.7M | 1% |
SEM
Segment breakdown not available.
