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Side-by-side financial comparison of American Electric Power (AEP) and COMFORT SYSTEMS USA INC (FIX). Click either name above to swap in a different company.

American Electric Power is the larger business by last-quarter revenue ($5.1B vs $2.6B, roughly 1.9× COMFORT SYSTEMS USA INC). COMFORT SYSTEMS USA INC runs the higher net margin — 12.5% vs 12.0%, a 0.5% gap on every dollar of revenue. On growth, COMFORT SYSTEMS USA INC posted the faster year-over-year revenue change (41.7% vs 6.2%). Over the past eight quarters, COMFORT SYSTEMS USA INC's revenue compounded faster (31.2% CAGR vs -0.3%).

American Electric Power Company, Inc., an electric public utility holding company, engages in the generation, transmission, and distribution of electricity for sale to retail and wholesale customers in the United States. It operates through Vertically Integrated Utilities, Transmission and Distribution Utilities, AEP Transmission Holdco, and Generation & Marketing segments. The company generates electricity using coal and lignite, natural gas, nuclear, hydro, solar, wind, and other energy sou...

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.

AEP vs FIX — Head-to-Head

Bigger by revenue
AEP
AEP
1.9× larger
AEP
$5.1B
$2.6B
FIX
Growing faster (revenue YoY)
FIX
FIX
+35.4% gap
FIX
41.7%
6.2%
AEP
Higher net margin
FIX
FIX
0.5% more per $
FIX
12.5%
12.0%
AEP
Faster 2-yr revenue CAGR
FIX
FIX
Annualised
FIX
31.2%
-0.3%
AEP

Income Statement — Q4 FY2025 vs Q4 FY2025

Metric
AEP
AEP
FIX
FIX
Revenue
$5.1B
$2.6B
Net Profit
$605.2M
$330.8M
Gross Margin
25.5%
Operating Margin
22.1%
16.1%
Net Margin
12.0%
12.5%
Revenue YoY
6.2%
41.7%
Net Profit YoY
-9.1%
126.8%
EPS (diluted)
$1.06
$9.35

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.

Revenue
AEP
AEP
FIX
FIX
Q4 25
$5.1B
$2.6B
Q3 25
$6.0B
$2.5B
Q2 25
$5.1B
$2.2B
Q1 25
$5.6B
$1.8B
Q4 24
$4.8B
$1.9B
Q3 24
$5.5B
$1.8B
Q2 24
$4.7B
$1.8B
Q1 24
$5.1B
$1.5B
Net Profit
AEP
AEP
FIX
FIX
Q4 25
$605.2M
$330.8M
Q3 25
$1.0B
$291.6M
Q2 25
$1.3B
$230.8M
Q1 25
$802.2M
$169.3M
Q4 24
$665.9M
$145.9M
Q3 24
$961.7M
$146.2M
Q2 24
$342.5M
$134.0M
Q1 24
$1.0B
$96.3M
Gross Margin
AEP
AEP
FIX
FIX
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%
Operating Margin
AEP
AEP
FIX
FIX
Q4 25
22.1%
16.1%
Q3 25
25.5%
15.5%
Q2 25
27.7%
13.8%
Q1 25
22.8%
11.4%
Q4 24
23.0%
12.1%
Q3 24
24.7%
11.2%
Q2 24
14.7%
10.2%
Q1 24
23.1%
8.8%
Net Margin
AEP
AEP
FIX
FIX
Q4 25
12.0%
12.5%
Q3 25
16.8%
11.9%
Q2 25
25.5%
10.6%
Q1 25
14.2%
9.2%
Q4 24
14.0%
7.8%
Q3 24
17.6%
8.1%
Q2 24
7.4%
7.4%
Q1 24
19.8%
6.3%
EPS (diluted)
AEP
AEP
FIX
FIX
Q4 25
$1.06
$9.35
Q3 25
$1.81
$8.25
Q2 25
$2.29
$6.53
Q1 25
$1.50
$4.75
Q4 24
$1.24
$4.08
Q3 24
$1.80
$4.09
Q2 24
$0.64
$3.74
Q1 24
$1.90
$2.69

Balance Sheet & Financial Strength

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

Metric
AEP
AEP
FIX
FIX
Cash + ST InvestmentsLiquidity on hand
$417.0M
$981.9M
Total DebtLower is stronger
$47.3B
$145.2M
Stockholders' EquityBook value
$31.1B
$2.4B
Total Assets
$114.5B
$6.4B
Debt / EquityLower = less leverage
1.52×
0.06×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AEP
AEP
FIX
FIX
Q4 25
$417.0M
$981.9M
Q3 25
$1.3B
$860.5M
Q2 25
$439.3M
$331.7M
Q1 25
$463.6M
$204.8M
Q4 24
$418.3M
$549.9M
Q3 24
$474.4M
$415.6M
Q2 24
$428.2M
$199.4M
Q1 24
$447.7M
$100.8M
Total Debt
AEP
AEP
FIX
FIX
Q4 25
$47.3B
$145.2M
Q3 25
$46.1B
$136.0M
Q2 25
$44.5B
$73.0M
Q1 25
$43.0B
$67.8M
Q4 24
$42.6B
$68.3M
Q3 24
$42.0B
$62.3M
Q2 24
$42.1B
$73.4M
Q1 24
$39.8B
$77.0M
Stockholders' Equity
AEP
AEP
FIX
FIX
Q4 25
$31.1B
$2.4B
Q3 25
$30.4B
$2.2B
Q2 25
$29.9B
$2.0B
Q1 25
$27.3B
$1.8B
Q4 24
$26.9B
$1.7B
Q3 24
$26.6B
$1.6B
Q2 24
$26.1B
$1.5B
Q1 24
$25.8B
$1.4B
Total Assets
AEP
AEP
FIX
FIX
Q4 25
$114.5B
$6.4B
Q3 25
$110.3B
$5.8B
Q2 25
$107.8B
$5.1B
Q1 25
$104.4B
$4.6B
Q4 24
$103.1B
$4.7B
Q3 24
$100.1B
$4.4B
Q2 24
$99.6B
$4.2B
Q1 24
$97.7B
$3.9B
Debt / Equity
AEP
AEP
FIX
FIX
Q4 25
1.52×
0.06×
Q3 25
1.52×
0.06×
Q2 25
1.49×
0.04×
Q1 25
1.57×
0.04×
Q4 24
1.58×
0.04×
Q3 24
1.58×
0.04×
Q2 24
1.61×
0.05×
Q1 24
1.54×
0.06×

Cash Flow & Capital Efficiency

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

Metric
AEP
AEP
FIX
FIX
Operating Cash FlowLast quarter
$1.8B
$468.5M
Free Cash FlowOCF − Capex
$402.4M
FCF MarginFCF / Revenue
15.2%
Capex IntensityCapex / Revenue
2.5%
Cash ConversionOCF / Net Profit
3.00×
1.42×
TTM Free Cash FlowTrailing 4 quarters
$1.0B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AEP
AEP
FIX
FIX
Q4 25
$1.8B
$468.5M
Q3 25
$2.5B
$553.3M
Q2 25
$1.2B
$252.5M
Q1 25
$1.4B
$-88.0M
Q4 24
$1.7B
$210.5M
Q3 24
$2.2B
$302.2M
Q2 24
$1.5B
$189.9M
Q1 24
$1.4B
$146.6M
Free Cash Flow
AEP
AEP
FIX
FIX
Q4 25
$402.4M
Q3 25
$2.2B
$517.9M
Q2 25
$221.2M
Q1 25
$-110.2M
Q4 24
$169.8M
Q3 24
$280.1M
Q2 24
$166.5M
Q1 24
$121.6M
FCF Margin
AEP
AEP
FIX
FIX
Q4 25
15.2%
Q3 25
36.3%
21.1%
Q2 25
10.2%
Q1 25
-6.0%
Q4 24
9.1%
Q3 24
15.5%
Q2 24
9.2%
Q1 24
7.9%
Capex Intensity
AEP
AEP
FIX
FIX
Q4 25
2.5%
Q3 25
5.0%
1.4%
Q2 25
1.4%
Q1 25
1.2%
Q4 24
2.2%
Q3 24
0.0%
1.2%
Q2 24
1.3%
Q1 24
1.6%
Cash Conversion
AEP
AEP
FIX
FIX
Q4 25
3.00×
1.42×
Q3 25
2.46×
1.90×
Q2 25
0.95×
1.09×
Q1 25
1.81×
-0.52×
Q4 24
2.59×
1.44×
Q3 24
2.26×
2.07×
Q2 24
4.27×
1.42×
Q1 24
1.43×
1.52×

Financial Flow Comparison

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

Revenue Breakdown by Segment

AEP
AEP

Transmissionand Distribution Utilities Revenues$1.5B29%
Electric Generation Transmission Distribution Revenues$956.6M19%
Electricity Transmission And Distribution Revenues$931.8M18%
Industrial$685.8M14%
Marketing Competitive Retailand Renewable$438.3M9%
Wholesale Generation$231.1M5%
Wholesale Transmission$113.6M2%
Other$110.2M2%
Electric Transmission$103.4M2%
Other Retail$60.1M1%

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%

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