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Side-by-side financial comparison of American Electric Power (AEP) and CSX Corporation (CSX). Click either name above to swap in a different company.

American Electric Power is the larger business by last-quarter revenue ($5.1B vs $3.5B, roughly 1.5× CSX Corporation). CSX Corporation runs the higher net margin — 23.2% vs 12.0%, a 11.2% gap on every dollar of revenue. On growth, American Electric Power posted the faster year-over-year revenue change (6.2% vs 1.7%). Over the past eight quarters, American Electric Power's revenue compounded faster (-0.3% CAGR vs -3.0%).

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...

CSX Transportation, known colloquially as simply CSX, is a Class I freight railroad company operating in the Eastern United States and the Canadian provinces of Ontario and Quebec. Operating about 21,000 route miles (34,000 km) of track, it is the leading subsidiary of CSX Corporation, a Fortune 500 company headquartered in Jacksonville, Florida.

AEP vs CSX — Head-to-Head

Bigger by revenue
AEP
AEP
1.5× larger
AEP
$5.1B
$3.5B
CSX
Growing faster (revenue YoY)
AEP
AEP
+4.5% gap
AEP
6.2%
1.7%
CSX
Higher net margin
CSX
CSX
11.2% more per $
CSX
23.2%
12.0%
AEP
Faster 2-yr revenue CAGR
AEP
AEP
Annualised
AEP
-0.3%
-3.0%
CSX

Income Statement — Q4 FY2025 vs Q1 FY2026

Metric
AEP
AEP
CSX
CSX
Revenue
$5.1B
$3.5B
Net Profit
$605.2M
$807.0M
Gross Margin
Operating Margin
22.1%
29.9%
Net Margin
12.0%
23.2%
Revenue YoY
6.2%
1.7%
Net Profit YoY
-9.1%
401.2%
EPS (diluted)
$1.06

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
CSX
CSX
Q1 26
$3.5B
Q4 25
$5.1B
$3.5B
Q3 25
$6.0B
$3.6B
Q2 25
$5.1B
$3.6B
Q1 25
$5.6B
$3.4B
Q4 24
$4.8B
$3.5B
Q3 24
$5.5B
$3.6B
Q2 24
$4.7B
$3.7B
Net Profit
AEP
AEP
CSX
CSX
Q1 26
$807.0M
Q4 25
$605.2M
$720.0M
Q3 25
$1.0B
$694.0M
Q2 25
$1.3B
$829.0M
Q1 25
$802.2M
$646.0M
Q4 24
$665.9M
$720.0M
Q3 24
$961.7M
$894.0M
Q2 24
$342.5M
$963.0M
Operating Margin
AEP
AEP
CSX
CSX
Q1 26
29.9%
Q4 25
22.1%
31.6%
Q3 25
25.5%
30.3%
Q2 25
27.7%
35.9%
Q1 25
22.8%
30.4%
Q4 24
23.0%
30.8%
Q3 24
24.7%
37.4%
Q2 24
14.7%
39.1%
Net Margin
AEP
AEP
CSX
CSX
Q1 26
23.2%
Q4 25
12.0%
20.5%
Q3 25
16.8%
19.3%
Q2 25
25.5%
23.2%
Q1 25
14.2%
18.9%
Q4 24
14.0%
20.3%
Q3 24
17.6%
24.7%
Q2 24
7.4%
26.0%
EPS (diluted)
AEP
AEP
CSX
CSX
Q1 26
Q4 25
$1.06
$0.39
Q3 25
$1.81
$0.37
Q2 25
$2.29
$0.44
Q1 25
$1.50
$0.34
Q4 24
$1.24
$0.38
Q3 24
$1.80
$0.46
Q2 24
$0.64
$0.49

Balance Sheet & Financial Strength

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

Metric
AEP
AEP
CSX
CSX
Cash + ST InvestmentsLiquidity on hand
$417.0M
$1.1B
Total DebtLower is stronger
$47.3B
$18.9B
Stockholders' EquityBook value
$31.1B
$13.6B
Total Assets
$114.5B
$44.2B
Debt / EquityLower = less leverage
1.52×
1.39×

8-quarter trend — quarters aligned by calendar period.

Cash + ST Investments
AEP
AEP
CSX
CSX
Q1 26
$1.1B
Q4 25
$417.0M
$5.0M
Q3 25
$1.3B
$6.0M
Q2 25
$439.3M
$6.0M
Q1 25
$463.6M
$8.0M
Q4 24
$418.3M
$72.0M
Q3 24
$474.4M
$12.0M
Q2 24
$428.2M
$4.0M
Total Debt
AEP
AEP
CSX
CSX
Q1 26
$18.9B
Q4 25
$47.3B
$18.2B
Q3 25
$46.1B
$18.6B
Q2 25
$44.5B
$18.6B
Q1 25
$43.0B
$18.5B
Q4 24
$42.6B
$17.9B
Q3 24
$42.0B
$18.5B
Q2 24
$42.1B
$18.0B
Stockholders' Equity
AEP
AEP
CSX
CSX
Q1 26
$13.6B
Q4 25
$31.1B
$13.2B
Q3 25
$30.4B
$12.8B
Q2 25
$29.9B
$12.4B
Q1 25
$27.3B
$12.2B
Q4 24
$26.9B
$12.5B
Q3 24
$26.6B
$12.9B
Q2 24
$26.1B
$12.6B
Total Assets
AEP
AEP
CSX
CSX
Q1 26
$44.2B
Q4 25
$114.5B
$43.7B
Q3 25
$110.3B
$43.3B
Q2 25
$107.8B
$42.9B
Q1 25
$104.4B
$43.2B
Q4 24
$103.1B
$42.8B
Q3 24
$100.1B
$43.1B
Q2 24
$99.6B
$42.4B
Debt / Equity
AEP
AEP
CSX
CSX
Q1 26
1.39×
Q4 25
1.52×
1.38×
Q3 25
1.52×
1.45×
Q2 25
1.49×
1.50×
Q1 25
1.57×
1.52×
Q4 24
1.58×
1.43×
Q3 24
1.58×
1.43×
Q2 24
1.61×
1.42×

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
CSX
CSX
Operating Cash FlowLast quarter
$1.8B
$1.3B
Free Cash FlowOCF − Capex
$793.0M
FCF MarginFCF / Revenue
22.8%
Capex IntensityCapex / Revenue
Cash ConversionOCF / Net Profit
3.00×
1.58×
TTM Free Cash FlowTrailing 4 quarters
$2.0B

8-quarter trend — quarters aligned by calendar period.

Operating Cash Flow
AEP
AEP
CSX
CSX
Q1 26
$1.3B
Q4 25
$1.8B
$1.4B
Q3 25
$2.5B
$1.3B
Q2 25
$1.2B
$635.0M
Q1 25
$1.4B
$1.3B
Q4 24
$1.7B
$1.4B
Q3 24
$2.2B
$1.7B
Q2 24
$1.5B
$1.1B
Free Cash Flow
AEP
AEP
CSX
CSX
Q1 26
$793.0M
Q4 25
$709.0M
Q3 25
$2.2B
$607.0M
Q2 25
$-141.0M
Q1 25
$536.0M
Q4 24
$550.0M
Q3 24
$1.1B
Q2 24
$547.0M
FCF Margin
AEP
AEP
CSX
CSX
Q1 26
22.8%
Q4 25
20.2%
Q3 25
36.3%
16.9%
Q2 25
-3.9%
Q1 25
15.7%
Q4 24
15.5%
Q3 24
29.3%
Q2 24
14.8%
Capex Intensity
AEP
AEP
CSX
CSX
Q1 26
Q4 25
19.3%
Q3 25
5.0%
20.4%
Q2 25
21.7%
Q1 25
21.0%
Q4 24
23.7%
Q3 24
0.0%
17.3%
Q2 24
14.6%
Cash Conversion
AEP
AEP
CSX
CSX
Q1 26
1.58×
Q4 25
3.00×
1.93×
Q3 25
2.46×
1.93×
Q2 25
0.95×
0.77×
Q1 25
1.81×
1.94×
Q4 24
2.59×
1.93×
Q3 24
2.26×
1.89×
Q2 24
4.27×
1.13×

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%

CSX
CSX

Segment breakdown not available.

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