vs
Side-by-side financial comparison of COMFORT SYSTEMS USA INC (FIX) and Vistra Corp. (VST). Click either name above to swap in a different company.
Vistra Corp. is the larger business by last-quarter revenue ($4.8B vs $2.6B, roughly 1.8× COMFORT SYSTEMS USA INC). COMFORT SYSTEMS USA INC runs the higher net margin — 12.5% vs 4.8%, a 7.7% gap on every dollar of revenue. On growth, COMFORT SYSTEMS USA INC posted the faster year-over-year revenue change (41.7% vs 31.2%). Vistra Corp. produced more free cash flow last quarter ($596.0M vs $402.4M). Over the past eight quarters, COMFORT SYSTEMS USA INC's revenue compounded faster (31.2% CAGR vs 23.3%).
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.
Vistra may refer to either of two companies:Vistra, a corporate services company based in Hong Kong Vistra Corp, an energy company based in Texas
FIX vs VST — Head-to-Head
Income Statement — Q4 FY2025 vs Q4 FY2025
| Metric | | |
|---|---|---|
| Revenue | $2.6B | $4.8B |
| Net Profit | $330.8M | $233.0M |
| Gross Margin | 25.5% | — |
| Operating Margin | 16.1% | 9.9% |
| Net Margin | 12.5% | 4.8% |
| Revenue YoY | 41.7% | 31.2% |
| Net Profit YoY | 126.8% | -47.2% |
| EPS (diluted) | $9.35 | $0.55 |
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.
| Q4 25 | $2.6B | $4.8B | ||
| Q3 25 | $2.5B | $4.8B | ||
| Q2 25 | $2.2B | $3.8B | ||
| Q1 25 | $1.8B | $4.3B | ||
| Q4 24 | $1.9B | $3.7B | ||
| Q3 24 | $1.8B | $4.3B | ||
| Q2 24 | $1.8B | $3.6B | ||
| Q1 24 | $1.5B | $3.2B |
| Q4 25 | $330.8M | $233.0M | ||
| Q3 25 | $291.6M | $652.0M | ||
| Q2 25 | $230.8M | $327.0M | ||
| Q1 25 | $169.3M | $-268.0M | ||
| Q4 24 | $145.9M | $441.0M | ||
| Q3 24 | $146.2M | $1.9B | ||
| Q2 24 | $134.0M | $365.0M | ||
| Q1 24 | $96.3M | $-35.0M |
| 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 24 | 19.3% | — |
| Q4 25 | 16.1% | 9.9% | ||
| Q3 25 | 15.5% | 21.7% | ||
| Q2 25 | 13.8% | 13.7% | ||
| Q1 25 | 11.4% | -2.8% | ||
| Q4 24 | 12.1% | 16.4% | ||
| Q3 24 | 11.2% | 59.6% | ||
| Q2 24 | 10.2% | 22.5% | ||
| Q1 24 | 8.8% | 2.7% |
| Q4 25 | 12.5% | 4.8% | ||
| Q3 25 | 11.9% | 13.6% | ||
| Q2 25 | 10.6% | 8.7% | ||
| Q1 25 | 9.2% | -6.3% | ||
| Q4 24 | 7.8% | 12.0% | ||
| Q3 24 | 8.1% | 43.5% | ||
| Q2 24 | 7.4% | 10.1% | ||
| Q1 24 | 6.3% | -1.1% |
| Q4 25 | $9.35 | $0.55 | ||
| Q3 25 | $8.25 | $1.75 | ||
| Q2 25 | $6.53 | $0.81 | ||
| Q1 25 | $4.75 | $-0.93 | ||
| Q4 24 | $4.08 | $1.09 | ||
| Q3 24 | $4.09 | $5.25 | ||
| Q2 24 | $3.74 | $0.90 | ||
| Q1 24 | $2.69 | $-0.24 |
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 | $785.0M |
| Total DebtLower is stronger | $145.2M | $15.8B |
| Stockholders' EquityBook value | $2.4B | $5.1B |
| Total Assets | $6.4B | $41.5B |
| Debt / EquityLower = less leverage | 0.06× | 3.11× |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $981.9M | $785.0M | ||
| Q3 25 | $860.5M | $602.0M | ||
| Q2 25 | $331.7M | $458.0M | ||
| Q1 25 | $204.8M | $561.0M | ||
| Q4 24 | $549.9M | $1.2B | ||
| Q3 24 | $415.6M | $905.0M | ||
| Q2 24 | $199.4M | $1.6B | ||
| Q1 24 | $100.8M | $1.1B |
| Q4 25 | $145.2M | $15.8B | ||
| Q3 25 | $136.0M | $15.8B | ||
| Q2 25 | $73.0M | $15.5B | ||
| Q1 25 | $67.8M | $15.4B | ||
| Q4 24 | $68.3M | $15.4B | ||
| Q3 24 | $62.3M | $13.9B | ||
| Q2 24 | $73.4M | $13.9B | ||
| Q1 24 | $77.0M | $14.7B |
| Q4 25 | $2.4B | $5.1B | ||
| Q3 25 | $2.2B | $5.2B | ||
| Q2 25 | $2.0B | $4.8B | ||
| Q1 25 | $1.8B | $4.8B | ||
| Q4 24 | $1.7B | $5.6B | ||
| Q3 24 | $1.6B | $5.4B | ||
| Q2 24 | $1.5B | $5.6B | ||
| Q1 24 | $1.4B | $5.7B |
| Q4 25 | $6.4B | $41.5B | ||
| Q3 25 | $5.8B | $38.0B | ||
| Q2 25 | $5.1B | $38.1B | ||
| Q1 25 | $4.6B | $38.2B | ||
| Q4 24 | $4.7B | $37.8B | ||
| Q3 24 | $4.4B | $37.9B | ||
| Q2 24 | $4.2B | $39.1B | ||
| Q1 24 | $3.9B | $38.2B |
| Q4 25 | 0.06× | 3.11× | ||
| Q3 25 | 0.06× | 3.02× | ||
| Q2 25 | 0.04× | 3.22× | ||
| Q1 25 | 0.04× | 3.20× | ||
| Q4 24 | 0.04× | 2.77× | ||
| Q3 24 | 0.04× | 2.56× | ||
| Q2 24 | 0.05× | 2.49× | ||
| Q1 24 | 0.06× | 2.60× |
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 | $1.4B |
| Free Cash FlowOCF − Capex | $402.4M | $596.0M |
| FCF MarginFCF / Revenue | 15.2% | 12.4% |
| Capex IntensityCapex / Revenue | 2.5% | 17.4% |
| Cash ConversionOCF / Net Profit | 1.42× | 6.15× |
| TTM Free Cash FlowTrailing 4 quarters | $1.0B | $1.3B |
8-quarter trend — quarters aligned by calendar period.
| Q4 25 | $468.5M | $1.4B | ||
| Q3 25 | $553.3M | $1.5B | ||
| Q2 25 | $252.5M | $572.0M | ||
| Q1 25 | $-88.0M | $599.0M | ||
| Q4 24 | $210.5M | $1.4B | ||
| Q3 24 | $302.2M | $1.7B | ||
| Q2 24 | $189.9M | $1.2B | ||
| Q1 24 | $146.6M | $312.0M |
| Q4 25 | $402.4M | $596.0M | ||
| Q3 25 | $517.9M | $1.0B | ||
| Q2 25 | $221.2M | $-118.0M | ||
| Q1 25 | $-110.2M | $-169.0M | ||
| Q4 24 | $169.8M | $923.0M | ||
| Q3 24 | $280.1M | $1.0B | ||
| Q2 24 | $166.5M | $698.0M | ||
| Q1 24 | $121.6M | $-153.0M |
| Q4 25 | 15.2% | 12.4% | ||
| Q3 25 | 21.1% | 21.1% | ||
| Q2 25 | 10.2% | -3.1% | ||
| Q1 25 | -6.0% | -4.0% | ||
| Q4 24 | 9.1% | 25.2% | ||
| Q3 24 | 15.5% | 23.4% | ||
| Q2 24 | 9.2% | 19.4% | ||
| Q1 24 | 7.9% | -4.8% |
| Q4 25 | 2.5% | 17.4% | ||
| Q3 25 | 1.4% | 9.6% | ||
| Q2 25 | 1.4% | 18.4% | ||
| Q1 25 | 1.2% | 18.1% | ||
| Q4 24 | 2.2% | 11.7% | ||
| Q3 24 | 1.2% | 15.8% | ||
| Q2 24 | 1.3% | 13.8% | ||
| Q1 24 | 1.6% | 14.7% |
| Q4 25 | 1.42× | 6.15× | ||
| Q3 25 | 1.90× | 2.25× | ||
| Q2 25 | 1.09× | 1.75× | ||
| Q1 25 | -0.52× | — | ||
| Q4 24 | 1.44× | 3.07× | ||
| Q3 24 | 2.07× | 0.90× | ||
| Q2 24 | 1.42× | 3.28× | ||
| Q1 24 | 1.52× | — |
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% |
VST
| Retail Energy Charge In ERCOT | $2.1B | 43% |
| Retail Energy Charge In Northeast Midwest | $1.2B | 24% |
| East Segment | $1.1B | 24% |
| Hedging Revenue Realized | $170.0M | 4% |
| Revenue From Other Wholesale Contracts | $116.0M | 2% |
| Transferable Production Tax Credit Revenues | $78.0M | 2% |
| West Segment | $77.0M | 2% |
| Intersegment Sales | $25.0M | 1% |
