The Filing Desk

American Electric Power vs Duke Energy

American Electric Power AEP · Duke Energy DUK · Electric Utilities

Duke Energy reported revenue of $31.7 billion in fiscal 2025, 1.5 times American Electric Power's $21.9 billion in fiscal 2025. American Electric Power's revenue grew 10.9% in its latest year, and Duke Energy's grew 5.6%. American Electric Power had an operating margin of 24.3%, against 27.2% at Duke Energy. Free cash flow was −$1.5 billion at American Electric Power and −$1.7 billion at Duke Energy.

Side by side

American Electric PowerDuke Energy
Latest fiscal yearFY2025, Dec 31, 2025FY2025, Dec 31, 2025
Revenue$21.9B$31.7B
Revenue growth10.9%5.6%
Revenue growth a year, last 5 years8.0%6.4%
Gross margin——
Operating margin24.3%27.2%
Net margin16.9%15.7%
Free cash flow−$1.5B−$1.7B
Free cash flow margin−6.9%−5.3%
Return on capital6.7%5.5%
Net debt to EBITDA5.6x5.5x
Dividends and buybacks$2.0B$3.3B
Change in diluted share count1.1%0.7%
Last close$129.22$124.44
P/E at the last close19.1×19.1×
Insider trades, last 12 monthssold $2.2 millionsold $9.6 million
Piotroski F-score7 of 85 of 8
Amounts in each company's own currency, US$ unless marked (a foreign company may report in another), each company's latest fiscal year from its 10-K, or 20-F or 40-F for a foreign company. Growth rates compare with the year before; the five-year rate is the average a year. Free cash flow is cash from operations minus capital spending; return on capital is after-tax operating income over the money invested in the business; P/E is the last close over the latest earnings per share. Banks are measured differently (return on equity, efficiency ratio), so some rows apply to one company only.

Ten years

Revenue
US$ billions, fiscal years
American Electric PowerDuke Energy
Operating margin
Percent of revenue
American Electric PowerDuke Energy
Free cash flow
US$ billions. Cash from operations minus capital expenditure.
American Electric PowerDuke Energy

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Source: the companies' Form 10-K filings, from SEC EDGAR, and the last close. For information only, not investment advice: the figures describe results, not which company is the better investment. The Filing Desk is not affiliated with either company. Full figures on the American Electric Power and Duke Energy pages.