American Electric Power Co (WBO:AEPC) Effective Interest Rate on Debt %: 4.39% (As of Mar. 2026)


WBO:AEPC American Electric Power Co Inc WBO:AEPC
66 GF Score
Price €117.66
GF Value €96.35
Valuation Modestly Overvalued
! 10 Warning Signs
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What is American Electric Power Co Effective Interest Rate on Debt %?

American Electric Power Co WBO:AEPC -0.41% 66 Effective Interest Rate on Debt % is 4.39% as of Mar. 2026. GuruFocus rates WBO:AEPC with a GF Score™ of 66/100 and a GF Value™ of €96.35 (Modestly Overvalued). The stock has 10 warning signs investors should review.

Effective Interest Rate on Debt % is the usage rate that a borrower actually pays on a debt. It is calculated as the positive value of Interest Expense divided by its average total debt. Total debt equals to Long-Term Debt & Capital Lease Obligation plus Short-Term Debt & Capital Lease Obligation. American Electric Power Co's annualized positive value of Interest Expense for the quarter that ended in Mar. 2026 was €1,910 Mil. American Electric Power Co's average total debt for the quarter that ended in Mar. 2026 was €43,533 Mil. Therefore, American Electric Power Co's annualized Effective Interest Rate on Debt % for the quarter that ended in Mar. 2026 was 4.39%.


American Electric Power Co  (WBO:AEPC) Effective Interest Rate on Debt % Explanation

Effective Interest Rate on Debt % measures the usage rate that a borrower actually pays on a debt.


American Electric Power Co Effective Interest Rate on Debt % Related Terms


American Electric Power Co Effective Interest Rate on Debt % Historical Data

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The historical data trend for American Electric Power Co's Effective Interest Rate on Debt % can be seen below:

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

American Electric Power Co Effective Interest Rate on Debt % Chart

American Electric Power Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Effective Interest Rate on Debt %
Get a 7-Day Free Trial Premium Member Only Premium Member Only 3.49 3.68 4.18 4.25 4.02

American Electric Power Co Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Effective Interest Rate on Debt % Get a 7-Day Free Trial Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only Premium Member Only 4.20 4.05 4.27 4.38 4.39

WBO:AEPC vs D, ETR, XEL: Effective Interest Rate on Debt % Comparison

For the Utilities - Regulated Electric subindustry, American Electric Power Co's Effective Interest Rate on Debt %, along with its competitors' market caps and Effective Interest Rate on Debt % data, can be viewed below:

* Competitive companies are chosen from companies within the same industry, with headquarter located in same country, with closest market capitalization; x-axis shows the market cap, and y-axis shows the term value; the bigger the dot, the larger the market cap. Note that "N/A" values will not show up in the chart.


American Electric Power Co Effective Interest Rate on Debt % vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, American Electric Power Co's Effective Interest Rate on Debt % distribution charts can be found below:

* The bar in red indicates where American Electric Power Co's Effective Interest Rate on Debt % falls into.


WBO:AEPC
66GF Score
American Electric Power Co Inc WBO:AEPC
Effective Interest Rate on Debt % is just one metric. See GF Score™, valuation, warning signs, and more.
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American Electric Power Co Effective Interest Rate on Debt % Calculation

American Electric Power Co's annualized Effective Interest Rate on Debt % for the fiscal year that ended in Dec. 2025 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (A: Dec. 2024 )+Total Debt  (A: Dec. 2025 ))/ count )
=-1  *  -1730.204/( (43703.665+42279.832)/ 2 )
=-1  *  -1730.204/42991.7485
=4.02 %

where

Total Debt  (A: Dec. 2024 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=38020.46 + 5683.205
=43703.665

Total Debt  (A: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=38178.924 + 4100.908
=42279.832

American Electric Power Co's annualized Effective Interest Rate on Debt % for the quarter that ended in Mar. 2026 is calculated as

Effective Interest Rate on Debt %
=-1  *  Interest Expense/( (Total Debt  (Q: Dec. 2025 )+Total Debt  (Q: Mar. 2026 ))/ count )
=-1  *  -1909.92/( (42279.832+44786.24)/ 2 )
=-1  *  -1909.92/43533.036
=4.39 %

where

Total Debt  (Q: Dec. 2025 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=38178.924 + 4100.908
=42279.832

Total Debt  (Q: Mar. 2026 )
=Long-Term Debt & Capital Lease Obligation + Short-Term Debt & Capital Lease Obligation
=41020.03 + 3766.21
=44786.24

* For Operating Data section: All numbers are indicated by the unit behind each term and all currency related amount are in USD.
* For other sections: All numbers are in millions except for per share data, ratio, and percentage. All currency related amount are indicated in the company's associated stock exchange currency.

In the calculation of annual Effective Interest Rate on Debt %, the Interest Expense of the last fiscal year and the average total debt over the fiscal year are used. In calculating the quarterly data, the Interest Expense data used here is four times the quarterly (Mar. 2026) interest expense data. Effective Interest Rate on Debt % is displayed in the 30-year financial page.

What does a Effective Interest Rate on Debt % of 4.39% mean?
American Electric Power Co (WBO:AEPC) has a Effective Interest Rate on Debt % of 4.39% as of Mar. 2026. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on American Electric Power Co and its competitors.
Is American Electric Power Co's Effective Interest Rate on Debt % too high?
American Electric Power Co's current Effective Interest Rate on Debt % is 4.39%. Overall, American Electric Power Co has a GF Score™ of 66/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does American Electric Power Co's Effective Interest Rate on Debt % compare to D and ETR?
American Electric Power Co's Effective Interest Rate on Debt % of 4.39% can be compared against companies in the Utilities - Regulated industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Effective Interest Rate on Debt % for an Utilities - Regulated company?
A good Effective Interest Rate on Debt % depends on the Utilities - Regulated industry context. However, Effective Interest Rate on Debt % should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Effective Interest Rate on Debt % mean?
A high Effective Interest Rate on Debt % can signal that a stock is expensive relative to its fundamentals. Effective interest rate on debt is the rate a company actually pays on its debt. View historical data on American Electric Power Co and its competitors. American Electric Power Co's current Effective Interest Rate on Debt % is 4.39%. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is American Electric Power Co stock overvalued right now?
Based on GuruFocus' analysis, American Electric Power Co (WBO:AEPC) is currently considered Modestly Overvalued. The stock's GF Value™ is €96.35, compared to a current price of €117.66 — trading 22.1% above its estimated fair value. The current Effective Interest Rate on Debt % is 4.39%. American Electric Power Co's overall GF Score™ is 66/100 with 10 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Effective Interest Rate on Debt % calculated?
Effective Interest Rate on Debt % is calculated from a company's financial statements. For American Electric Power Co (WBO:AEPC), the current Effective Interest Rate on Debt % is 4.39% as of Mar. 2026. GuruFocus calculates this using data sourced from SEC filings and annual reports. See the calculation section and 30-year financial data on this page for the full breakdown.

Is American Electric Power Co (WBO:AEPC) Overvalued in 2026?

Based on GuruFocus' analysis, American Electric Power Co stock appears to be overvalued. The current stock price of €117.66 is trading 22.1% above its estimated GF Value™ of €96.35. GuruFocus considers American Electric Power Co to be Modestly Overvalued.

Key valuation signals for WBO:AEPC:

  • Effective Interest Rate on Debt %: 4.39%
  • GF Value™: €96.35 vs. price of €117.66 (22.1% above fair value)
  • GF Score™: 66/100 with 10 warning signs

No single metric tells the full story. See the WBO:AEPC stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


American Electric Power Co Business Description

Address 1 Riverside Plaza, Columbus, OH, USA, 43215-2373
American Electric Power is one of the largest regulated utilities in the United States, providing electricity generation, transmission, and distribution to more than 5 million customers in 11 states. About 39% of AEP's capacity is coal, with the remainder from a mix of natural gas (28%), renewable energy and hydro (23%), nuclear (7%), and demand response (3%). Vertically integrated utilities, transmission and distribution, and generation and marketing support earnings.
66GF Score

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Effective Interest Rate on Debt % is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€117.66
Price
€96.35
GF Value