Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.
American Electric Power CoXTER:AEP -0.28%77 Cyclically Adjusted PS Ratio is 14.79 as of Aug. 16, 2026, which is 24% above its 10-year median of 11.91. GuruFocus rates XTER:AEP with a GF Score™ of 77/100 and a GF Value™ of €99.29 (Fairly Valued). The stock has 9 warning signs investors should review. Among 438 Utilities - Regulated companies, American Electric Power Co ranks worse than 98.4% on this metric.
The historical rank and industry rank for American Electric Power Co's Cyclically Adjusted PS Ratio or its related term are showing as below:
XTER:AEP'
s Cyclically Adjusted PS Ratio Range Over the Past 10 Years
Min: 8.43 Med: 11.91 Max: 16.79
Current: 15.08
During the past years, American Electric Power Co's highest Cyclically Adjusted PS Ratio was 16.79. The lowest was 8.43. And the median was 11.91.
XTER:AEP's Cyclically Adjusted PS Ratio is ranked worse than 98.4% of 438
companies
in the Utilities - Regulated industry
Industry Median: 1.45
vs XTER:AEP: 15.08
The Shiller PE Ratio was first used by professor Robert Shiller. He uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings per share of a company over the past 10 years. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PS Ratio. The Cyclically Adjusted Revenue per Share is the average of the inflation adjusted revenue per share of a company over the past 10 years.
American Electric Power Co's adjusted revenue per share data for the three months ended in Jun. 2026 was €1.717. Add all the adjusted revenue per share for the past 10 years together and divide 10 will get our Cyclically Adjusted Revenue per Share, which is €7.31 for the trailing ten years ended in Jun. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
American Electric Power Co (XTER:AEP) Cyclically Adjusted PS Ratio Explanation
Compared with the regular PS Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PS Ratio smoothed out the fluctuations of revenue during business cycles. Therefore it is more accurate in reflecting the valuation of the company.
If a company has consistent business performance, the Cyclically Adjusted PS Ratio should give similar results to regular PS Ratio.
American Electric Power Co Cyclically Adjusted PS Ratio Related Terms
American Electric Power Co Cyclically Adjusted PS Ratio Historical Data
* Premium members only.
The historical data trend for American Electric Power Co's Cyclically Adjusted PS Ratio 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 Cyclically Adjusted PS Ratio Chart
XTER:AEP vs D, PCG, ETR: Cyclically Adjusted PS Ratio Comparison
For the Utilities - Regulated Electric subindustry, American Electric Power Co's Cyclically Adjusted PS Ratio, along with its competitors' market caps and Cyclically Adjusted PS Ratio 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 Cyclically Adjusted PS Ratio vs Utilities - Regulated Industry
For the Utilities - Regulated industry and Utilities sector, American Electric Power Co's Cyclically Adjusted PS Ratio distribution charts can be found below:
* The bar in red indicates where American Electric Power Co's Cyclically Adjusted PS Ratio falls into.
American Electric Power Co Cyclically Adjusted PS Ratio Calculation
Like the Shiller PE Ratio, the Cyclically Adjusted PS Ratio takes the Revenue per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/S calculation. Because it considers this 10-year average, it's often referred to as the CAPS Ratio.
The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PS Ratio.
* 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.
Please note that we use the CPI data of the country/region where the company is headquartered. If the CPI data for that country/region is not available, then we will use the CPI data of the United States as default.
What does a Cyclically Adjusted PS Ratio of 14.79 mean?
American Electric Power Co (XTER:AEP) has a Cyclically Adjusted PS Ratio of 14.79 as of Aug. 16, 2026. Cyclically Adjusted PS Ratio is the ratio of share price to a company's inflation-adjusted revenue per share over a 10-year period. View historical data on American Electric Power Co and its competitors. This is 24% above median its historical median of 11.91. Over the past decade, American Electric Power Co's Cyclically Adjusted PS Ratio has ranged from 8.43 to 16.79. According to the industry distribution chart, American Electric Power Co ranks #431 out of 438 companies in the Utilities - Regulated industry, placing it in the top 98.4%.
Is American Electric Power Co's Cyclically Adjusted PS Ratio too high?
American Electric Power Co's current Cyclically Adjusted PS Ratio of 14.79 is 24% above median its 10-year median of 11.91. Over the past 10 years, this metric has ranged from a low of 8.43 to a high of 16.79. The Utilities - Regulated industry median Cyclically Adjusted PS Ratio is 1.45. American Electric Power Co's value of 14.79 is 920% above this industry median. Based on the distribution chart, American Electric Power Co ranks #431 out of 438 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 77/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does American Electric Power Co's Cyclically Adjusted PS Ratio compare to D and PCG?
According to the Utilities - Regulated industry distribution chart, American Electric Power Co ranks #431 out of 438 companies for Cyclically Adjusted PS Ratio. This places American Electric Power Co in the lower half of its industry. The industry median Cyclically Adjusted PS Ratio is 1.45. American Electric Power Co's value of 14.79 is 920% above this benchmark. Historically, American Electric Power Co's own Cyclically Adjusted PS Ratio has ranged from 8.43 to 16.79 over the past decade. While the company's 10-year median is 11.91 vs. the industry median of 1.45, 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 Cyclically Adjusted PS Ratio for an Utilities - Regulated company?
The median Cyclically Adjusted PS Ratio among Utilities - Regulated companies is 1.45, based on 438 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PS Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PS Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. American Electric Power Co's current Cyclically Adjusted PS Ratio of 14.79 is 920% 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 Cyclically Adjusted PS Ratio mean?
A high Cyclically Adjusted PS Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PS Ratio is the ratio of share price to a company's inflation-adjusted revenue per share over a 10-year period. View historical data on American Electric Power Co and its competitors. For the Utilities - Regulated industry, the median Cyclically Adjusted PS Ratio is 1.45 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. American Electric Power Co's current Cyclically Adjusted PS Ratio is 14.79, which is 24% above median its own 10-year median of 11.91. 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 (XTER:AEP) is currently considered Fairly Valued. The stock's GF Value™ is €99.29, compared to a current price of €108.14 — trading 8.9% above its estimated fair value. The current Cyclically Adjusted PS Ratio is 14.79, which is 24% above median its 10-year median of 11.91 and 920% above the Utilities - Regulated industry median of 1.45. American Electric Power Co's overall GF Score™ is 77/100 with 9 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PS Ratio calculated?
Cyclically Adjusted PS Ratio is calculated from a company's financial statements. For American Electric Power Co (XTER:AEP), the current Cyclically Adjusted PS Ratio is 14.79 as of Aug. 16, 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 (XTER:AEP) Overvalued in 2026?
Based on GuruFocus' analysis, American Electric Power Co stock appears to be overvalued.
The current stock price of €108.14 is trading 8.9% above its estimated GF Value™ of €99.29.
GuruFocus considers American Electric Power Co to be Fairly Valued.
Key valuation signals for XTER:AEP:
Cyclically Adjusted PS Ratio: 14.79 (24% above median its 10-year median of 11.91)
GF Value™: €99.29 vs. price of €108.14 (8.9% above fair value)
Industry Position: 920% above the Utilities - Regulated median (#431 of 438)
No single metric tells the full story. See the XTER:AEP stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
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.
77GF Score
Get the complete analysis for XTER:AEP
Cyclically Adjusted PS Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.
Quick Browse
Personalize
Premium Gurus 
Create New Portfolio
XTER:AEP has been successfully added to your 
