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Side-by-side financial comparison of COMFORT SYSTEMS USA INC (FIX) and Nasdaq, Inc. (NDAQ). 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 $2.1B, roughly 1.2× Nasdaq, Inc.). Nasdaq, Inc. runs the higher net margin — 24.3% vs 12.5%, a 11.8% gap on every dollar of revenue. On growth, COMFORT SYSTEMS USA INC posted the faster year-over-year revenue change (41.7% vs 2.0%). Over the past eight quarters, COMFORT SYSTEMS USA INC's revenue compounded faster (31.2% CAGR vs 9.2%).

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.

Nasdaq Stock Market is an American stock exchange, the second-largest by market cap on the list of stock exchanges, and the first fully electronic stock market. The exchange is based in Manhattan, New York City, and is among the most active stock trading venue by volume in the United States.

FIX vs NDAQ — Head-to-Head

Bigger by revenue
FIX
FIX
1.2× larger
FIX
$2.6B
$2.1B
NDAQ
Growing faster (revenue YoY)
FIX
FIX
+39.7% gap
FIX
41.7%
2.0%
NDAQ
Higher net margin
NDAQ
NDAQ
11.8% more per $
NDAQ
24.3%
12.5%
FIX
Faster 2-yr revenue CAGR
FIX
FIX
Annualised
FIX
31.2%
9.2%
NDAQ

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
FIX
FIX
NDAQ
NDAQ
Revenue
$2.6B
$2.1B
Net Profit
$330.8M
$519.0M
Gross Margin
25.5%
Operating Margin
16.1%
30.7%
Net Margin
12.5%
24.3%
Revenue YoY
41.7%
2.0%
Net Profit YoY
126.8%
31.4%
EPS (diluted)
$9.35
$0.91

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.

Revenue
FIX
FIX
NDAQ
NDAQ
Q1 26
$2.1B
Q4 25
$2.6B
$2.1B
Q3 25
$2.5B
$2.0B
Q2 25
$2.2B
$2.1B
Q1 25
$1.8B
$2.1B
Q4 24
$1.9B
$2.0B
Q3 24
$1.8B
$1.9B
Q2 24
$1.8B
$1.8B
Net Profit
FIX
FIX
NDAQ
NDAQ
Q1 26
$519.0M
Q4 25
$330.8M
$518.0M
Q3 25
$291.6M
$423.0M
Q2 25
$230.8M
$452.0M
Q1 25
$169.3M
$395.0M
Q4 24
$145.9M
$355.0M
Q3 24
$146.2M
$306.0M
Q2 24
$134.0M
$222.0M
Gross Margin
FIX
FIX
NDAQ
NDAQ
Q1 26
Q4 25
25.5%
65.5%
Q3 25
24.8%
67.2%
Q2 25
23.5%
62.5%
Q1 25
22.0%
59.2%
Q4 24
23.2%
60.4%
Q3 24
21.1%
60.3%
Q2 24
20.1%
64.7%
Operating Margin
FIX
FIX
NDAQ
NDAQ
Q1 26
30.7%
Q4 25
16.1%
29.7%
Q3 25
15.5%
29.9%
Q2 25
13.8%
27.2%
Q1 25
11.4%
26.2%
Q4 24
12.1%
25.4%
Q3 24
11.2%
23.6%
Q2 24
10.2%
23.6%
Net Margin
FIX
FIX
NDAQ
NDAQ
Q1 26
24.3%
Q4 25
12.5%
24.4%
Q3 25
11.9%
21.6%
Q2 25
10.6%
21.6%
Q1 25
9.2%
18.9%
Q4 24
7.8%
17.5%
Q3 24
8.1%
16.1%
Q2 24
7.4%
12.4%
EPS (diluted)
FIX
FIX
NDAQ
NDAQ
Q1 26
$0.91
Q4 25
$9.35
$0.90
Q3 25
$8.25
$0.73
Q2 25
$6.53
$0.78
Q1 25
$4.75
$0.68
Q4 24
$4.08
$0.62
Q3 24
$4.09
$0.53
Q2 24
$3.74
$0.38

Balance Sheet & Financial Strength

Snapshot of each company's liquidity, leverage and book value from the latest quarter.

Metric
FIX
FIX
NDAQ
NDAQ
Cash + ST InvestmentsLiquidity on hand
$981.9M
$515.0M
Total DebtLower is stronger
$145.2M
$9.0B
Stockholders' EquityBook value
$2.4B
$12.0B
Total Assets
$6.4B
$27.3B
Debt / EquityLower = less leverage
0.06×
0.74×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
FIX
FIX
NDAQ
NDAQ
Q1 26
$515.0M
Q4 25
$981.9M
$604.0M
Q3 25
$860.5M
$470.0M
Q2 25
$331.7M
$732.0M
Q1 25
$204.8M
$690.0M
Q4 24
$549.9M
$592.0M
Q3 24
$415.6M
$266.0M
Q2 24
$199.4M
$416.0M
Total Debt
FIX
FIX
NDAQ
NDAQ
Q1 26
$9.0B
Q4 25
$145.2M
$8.6B
Q3 25
$136.0M
$8.7B
Q2 25
$73.0M
$8.7B
Q1 25
$67.8M
$8.9B
Q4 24
$68.3M
$9.1B
Q3 24
$62.3M
$9.4B
Q2 24
$73.4M
$9.2B
Stockholders' Equity
FIX
FIX
NDAQ
NDAQ
Q1 26
$12.0B
Q4 25
$2.4B
$12.2B
Q3 25
$2.2B
$12.0B
Q2 25
$2.0B
$11.8B
Q1 25
$1.8B
$11.5B
Q4 24
$1.7B
$11.2B
Q3 24
$1.6B
$11.1B
Q2 24
$1.5B
$10.9B
Total Assets
FIX
FIX
NDAQ
NDAQ
Q1 26
$27.3B
Q4 25
$6.4B
$31.1B
Q3 25
$5.8B
$30.7B
Q2 25
$5.1B
$30.4B
Q1 25
$4.6B
$30.6B
Q4 24
$4.7B
$30.4B
Q3 24
$4.4B
$30.6B
Q2 24
$4.2B
$30.2B
Debt / Equity
FIX
FIX
NDAQ
NDAQ
Q1 26
0.74×
Q4 25
0.06×
0.70×
Q3 25
0.06×
0.72×
Q2 25
0.04×
0.73×
Q1 25
0.04×
0.77×
Q4 24
0.04×
0.81×
Q3 24
0.04×
0.85×
Q2 24
0.05×
0.85×

Cash Flow & Capital Efficiency

How much cash each business actually produces after reinvestment. Cash flow is harder to manipulate than net income.

Metric
FIX
FIX
NDAQ
NDAQ
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.

Operating Cash Flow
FIX
FIX
NDAQ
NDAQ
Q1 26
Q4 25
$468.5M
$625.0M
Q3 25
$553.3M
$221.0M
Q2 25
$252.5M
$746.0M
Q1 25
$-88.0M
$663.0M
Q4 24
$210.5M
$705.0M
Q3 24
$302.2M
$244.0M
Q2 24
$189.9M
$460.0M
Free Cash Flow
FIX
FIX
NDAQ
NDAQ
Q1 26
Q4 25
$402.4M
$536.0M
Q3 25
$517.9M
$152.0M
Q2 25
$221.2M
$687.0M
Q1 25
$-110.2M
$614.0M
Q4 24
$169.8M
$645.0M
Q3 24
$280.1M
$188.0M
Q2 24
$166.5M
$408.0M
FCF Margin
FIX
FIX
NDAQ
NDAQ
Q1 26
Q4 25
15.2%
25.2%
Q3 25
21.1%
7.8%
Q2 25
10.2%
32.9%
Q1 25
-6.0%
29.4%
Q4 24
9.1%
31.7%
Q3 24
15.5%
9.9%
Q2 24
9.2%
22.8%
Capex Intensity
FIX
FIX
NDAQ
NDAQ
Q1 26
Q4 25
2.5%
4.2%
Q3 25
1.4%
3.5%
Q2 25
1.4%
2.8%
Q1 25
1.2%
2.3%
Q4 24
2.2%
3.0%
Q3 24
1.2%
2.9%
Q2 24
1.3%
2.9%
Cash Conversion
FIX
FIX
NDAQ
NDAQ
Q1 26
Q4 25
1.42×
1.21×
Q3 25
1.90×
0.52×
Q2 25
1.09×
1.65×
Q1 25
-0.52×
1.68×
Q4 24
1.44×
1.99×
Q3 24
2.07×
0.80×
Q2 24
1.42×
2.07×

Financial Flow Comparison

Revenue → gross profit → operating profit → net profit for each company.

Revenue Breakdown by Segment

FIX
FIX

Electrical Segment$823.7M31%
Manufacturing Customer$542.7M21%
Existing Building Construction$491.4M19%
Healthcare Sector Customer$220.8M8%
Service Projects$153.0M6%
Education$137.5M5%
Government Customer$131.0M5%
Office Building Customer$88.2M3%
Other Customer$40.7M2%
Multi Family And Residential$33.7M1%

NDAQ
NDAQ

Market Services$1.0B49%
Capital Access Platforms$565.0M26%
Financial Technology$517.0M24%
Other Revenues$8.0M0%

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