AEP (American Electric Power Co) Days Inventory: 59.30 (As of Mar. 2026) — Near Median


AEP American Electric Power Co Inc AEP
75 GF Score
Price $137.97
GF Value $110.98
Valuation Modestly Overvalued
! 10 Warning Signs
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What is American Electric Power Co Days Inventory?

American Electric Power Co AEP -0.52% 75 Days Inventory is 59.30 as of Mar. 2026, which is 4% below its 10-year median of 62.04. GuruFocus rates AEP with a GF Score™ of 75/100 and a GF Value™ of $110.98 (Modestly Overvalued). The stock has 10 warning signs investors should review. Among 452 Utilities - Regulated companies, American Electric Power Co ranks worse than 80.75% on this metric.

Days Inventory is also known as Days Sales of Inventory (DSI). American Electric Power Co's Average Total Inventories for the three months ended in Mar. 2026 was $1,644 Mil. American Electric Power Co's Cost of Goods Sold for the three months ended in Mar. 2026 was $2,529 Mil. Hence, American Electric Power Co's Days Inventory for the three months ended in Mar. 2026 was 59.30.

The historical rank and industry rank for American Electric Power Co's Days Inventory or its related term are showing as below:

AEP' s Days Inventory Range Over the Past 10 Years
Min: 48.63   Med: 62.04   Max: 90.35
Current: 66.34

During the past 13 years, American Electric Power Co's highest Days Inventory was 90.35. The lowest was 48.63. And the median was 62.04.

AEP's Days Inventory is ranked worse than
80.75% of 452 companies
in the Utilities - Regulated industry
Industry Median: 22.56 vs AEP: 66.34

American Electric Power Co's Days Inventory declined from Mar. 2025 (69.26) to Mar. 2026 (59.30).

Inventory Turnover measures how fast the company turns over its inventory within a year. American Electric Power Co's Inventory Turnover for the three months ended in Mar. 2026 was 1.54.

Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue. American Electric Power Co's Inventory-to-Revenue for the three months ended in Mar. 2026 was 0.27.


American Electric Power Co  (NAS:AEP) Days Inventory Explanation

Days Inventory indicates the liquidity of the inventory. Generally, a lower Days Inventory is preferred as it indicates a shorter duration to clear off the inventory. An increase of the ratio may indicate the company's sales slowed. Similar ratios related to Days Inventory are:

1. Inventory Turnover measures how fast the company turns over its inventory within a year.

American Electric Power Co's Inventory Turnover for the three months ended in Mar. 2026 is calculated as

2. Inventory-to-Revenue determines the ability of a company to manage their inventory levels. It measures the percentage of Inventories the company currently has on hand to support the current amount of Revenue.

American Electric Power Co's Inventory to Revenue for the three months ended in Mar. 2026 is calculated as

* 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.


Be Aware

A lot of business are seasonable. It makes more sense to compare Days Inventory from the same period in the previous year instead of from the previous quarter.


American Electric Power Co Days Inventory Related Terms


American Electric Power Co Days Inventory Historical Data

* Premium members only.

The historical data trend for American Electric Power Co's Days Inventory 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 Days Inventory Chart

American Electric Power Co Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Days Inventory
Get a 7-Day Free Trial Premium Member Only Premium Member Only 63.69 51.15 75.05 90.35 71.40

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
Days Inventory 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 69.26 75.66 61.36 71.70 59.30

AEP vs D, ETR, XEL: Days Inventory Comparison

For the Utilities - Regulated Electric subindustry, American Electric Power Co's Days Inventory, along with its competitors' market caps and Days Inventory 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 Days Inventory vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, American Electric Power Co's Days Inventory distribution charts can be found below:

* The bar in red indicates where American Electric Power Co's Days Inventory falls into.


AEP
75GF Score
American Electric Power Co Inc AEP
Days Inventory is just one metric. See GF Score™, valuation, warning signs, and more.
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American Electric Power Co Days Inventory Calculation

Days Inventory indicates the number of days of goods in sales that a company has in the inventory.

American Electric Power Co's Days Inventory for the fiscal year that ended in Dec. 2025 is calculated as

Days Inventory (A: Dec. 2025 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (A: Dec. 2024 ) + Total Inventories (A: Dec. 2025 )) / count ) / Cost of Goods Sold (A: Dec. 2025 )*Days in Period
=( (1715 + 1622) / 2 ) / 8530*365
=1668.5 / 8530*365
=71.40

American Electric Power Co's Days Inventory for the quarter that ended in Mar. 2026 is calculated as:

Days Inventory (Q: Mar. 2026 )
=Average Total Inventories / Cost of Goods Sold*Days in Period
=( (Total Inventories (Q: Dec. 2025 ) + Total Inventories (Q: Mar. 2026 )) / count ) / Cost of Goods Sold (Q: Mar. 2026 )*Days in Period
=( (1622 + 1665) / 2 ) / 2529*365 / 4
=1643.5 / 2529*365 / 4
=59.30

* 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.

Frequently Asked Questions Learn more about Days Inventory →
What does a Days Inventory of 59.30 mean?
American Electric Power Co (AEP) has a Days Inventory of 59.30 as of Mar. 2026. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on American Electric Power Co and its competitors. This is near median its historical median of 62.04. Over the past decade, American Electric Power Co's Days Inventory has ranged from 48.63 to 90.35. According to the industry distribution chart, American Electric Power Co ranks #365 out of 452 companies in the Utilities - Regulated industry, placing it in the top 80.8%.
Is American Electric Power Co's Days Inventory too high?
American Electric Power Co's current Days Inventory of 59.30 is near median its 10-year median of 62.04. Over the past 10 years, this metric has ranged from a low of 48.63 to a high of 90.35. The Utilities - Regulated industry median Days Inventory is 22.56. American Electric Power Co's value of 59.30 is 162.9% above this industry median. Based on the distribution chart, American Electric Power Co ranks #365 out of 452 companies in the Utilities - Regulated industry, which is in the bottom quartile relative to peers. Overall, American Electric Power Co has a GF Score™ of 75/100 and is considered Modestly Overvalued, reflecting its overall financial health beyond just this single metric.
How does American Electric Power Co's Days Inventory compare to D and ETR?
According to the Utilities - Regulated industry distribution chart, American Electric Power Co ranks #365 out of 452 companies for Days Inventory. This places American Electric Power Co in the lower half of its industry. The industry median Days Inventory is 22.56. American Electric Power Co's value of 59.30 is 162.9% above this benchmark. Historically, American Electric Power Co's own Days Inventory has ranged from 48.63 to 90.35 over the past decade. While the company's 10-year median is 62.04 vs. the industry median of 22.56, American Electric Power Co has consistently been above the industry average. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Days Inventory for an Utilities - Regulated company?
The median Days Inventory among Utilities - Regulated companies is 22.56, based on 452 companies in the industry. Companies in the top quartile (top 25%) have a Days Inventory significantly above this median, while those in the bottom quartile fall well below. However, Days Inventory should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. American Electric Power Co's current Days Inventory of 59.30 is 162.9% above the industry median. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Days Inventory mean?
A high Days Inventory can signal that a stock is expensive relative to its fundamentals. Days inventory represents the average amount of days a company holds inventory before selling it. View historical data on American Electric Power Co and its competitors. For the Utilities - Regulated industry, the median Days Inventory is 22.56 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. American Electric Power Co's current Days Inventory is 59.30, which is near median its own 10-year median of 62.04. 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 (AEP) is currently considered Modestly Overvalued. The stock's GF Value™ is $110.98, compared to a current price of $137.97 — trading 24.3% above its estimated fair value. The current Days Inventory is 59.30, which is near median its 10-year median of 62.04 and 162.9% above the Utilities - Regulated industry median of 22.56. American Electric Power Co's overall GF Score™ is 75/100 with 10 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Days Inventory calculated?
Days Inventory is calculated from a company's financial statements. For American Electric Power Co (AEP), the current Days Inventory is 59.30 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 (AEP) Overvalued in 2026?

Based on GuruFocus' analysis, American Electric Power Co stock appears to be overvalued. The current stock price of $137.97 is trading 24.3% above its estimated GF Value™ of $110.98. GuruFocus considers American Electric Power Co to be Modestly Overvalued.

Key valuation signals for AEP:

  • Days Inventory: 59.30 (near median its 10-year median of 62.04)
  • GF Value™: $110.98 vs. price of $137.97 (24.3% above fair value)
  • GF Score™: 75/100 with 10 warning signs
  • Industry Position: 162.9% above the Utilities - Regulated median (#365 of 452)

No single metric tells the full story. See the AEP 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.
75GF Score

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Days Inventory is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

$137.97
Price
$110.98
GF Value