Aon (FRA:4VK) Cyclically Adjusted PS Ratio: 5.48 (As of Aug. 10, 2026) — Near Median

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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.

FRA:4VK Aon PLC FRA:4VK
93 GF Score
Price €311.60
GF Value €342.41
Valuation Fairly Valued
! 2 Warning Signs
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What is Aon Cyclically Adjusted PS Ratio?

Aon FRA:4VK +0.45% 93 Cyclically Adjusted PS Ratio is 5.48 as of Aug. 10, 2026, which is 1% below its 10-year median of 5.51. GuruFocus rates FRA:4VK with a GF Score™ of 93/100 and a GF Value™ of €342.41 (Fairly Valued). The stock has 2 warning signs investors should review. Among 417 Insurance companies, Aon ranks worse than 94.48% on this metric.

As of today (2026-08-10), Aon's current share price is €311.60. Aon's Cyclically Adjusted Revenue per Share for the quarter that ended in Jun. 2026 was €56.84. Aon's Cyclically Adjusted PS Ratio for today is 5.48.

The historical rank and industry rank for Aon's Cyclically Adjusted PS Ratio or its related term are showing as below:

FRA:4VK' s Cyclically Adjusted PS Ratio Range Over the Past 10 Years
Min: 3.47   Med: 5.51   Max: 7.63
Current: 5.49

During the past years, Aon's highest Cyclically Adjusted PS Ratio was 7.63. The lowest was 3.47. And the median was 5.51.

FRA:4VK's Cyclically Adjusted PS Ratio is ranked worse than
94.48% of 417 companies
in the Insurance industry
Industry Median: 1.22 vs FRA:4VK: 5.49

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.

Aon's adjusted revenue per share data for the three months ended in Jun. 2026 was €17.230. 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 €56.84 for the trailing ten years ended in Jun. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


Aon  (FRA:4VK) 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.


Aon Cyclically Adjusted PS Ratio Related Terms


Aon Cyclically Adjusted PS Ratio Historical Data

* Premium members only.

The historical data trend for Aon'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.

Aon Cyclically Adjusted PS Ratio Chart

Aon Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PS Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 6.96 6.16 5.48 6.37 5.72

Aon Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted PS Ratio 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 6.05 5.97 5.72 5.05 5.08

FRA:4VK vs MRSH, AJG, WTW: Cyclically Adjusted PS Ratio Comparison

For the Insurance Brokers subindustry, Aon'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.


Aon Cyclically Adjusted PS Ratio vs Insurance Industry

For the Insurance industry and Financial Services sector, Aon's Cyclically Adjusted PS Ratio distribution charts can be found below:

* The bar in red indicates where Aon's Cyclically Adjusted PS Ratio falls into.


FRA:4VK
93GF Score
Aon PLC FRA:4VK
Cyclically Adjusted PS Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Aon 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.

Aon's Cyclically Adjusted PS Ratio for today is calculated as

Cyclically Adjusted PS Ratio=Share Price/ Cyclically Adjusted Revenue per Share
=311.60/56.84
=5.48

* 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.

Aon's Cyclically Adjusted Revenue per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, Aon's adjusted Revenue per Share data for the three months ended in Jun. 2026 was:

Adj_RevenuePerShare=Revenue per Share/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=17.23/128.6700*128.6700
=17.230

Current CPI (Jun. 2026) = 128.6700.

Aon Quarterly Data

Revenue per Share CPI Adj_RevenuePerShare
201609 7.274 100.274 9.334
201612 9.367 99.676 12.092
201703 8.338 100.374 10.689
201706 8.032 100.673 10.266
201709 7.630 100.474 9.771
201712 9.674 100.075 12.438
201803 10.016 100.573 12.814
201806 8.861 101.072 11.281
201809 8.197 101.371 10.404
201812 9.942 100.773 12.694
201903 11.414 101.670 14.445
201906 9.499 102.168 11.963
201909 9.034 102.268 11.366
201912 10.970 102.068 13.829
202003 12.423 102.367 15.615
202006 9.492 101.769 12.001
202009 8.672 101.072 11.040
202012 10.564 101.072 13.449
202103 12.981 102.367 16.316
202106 10.506 103.364 13.078
202109 10.189 104.859 12.503
202112 12.317 106.653 14.860
202203 15.399 109.245 18.137
202206 13.144 112.779 14.996
202209 12.808 113.504 14.519
202212 14.137 115.436 15.758
202303 17.458 117.609 19.100
202306 14.214 119.662 15.284
202309 13.524 120.749 14.411
202312 15.321 120.749 16.326
202403 18.713 120.990 19.901
202406 16.376 122.318 17.226
202409 15.351 121.594 16.244
202412 18.150 122.439 19.074
202503 20.075 123.405 20.931
202506 16.578 124.492 17.134
202509 15.715 124.810 16.201
202512 16.962 125.770 17.353
202603 20.215 127.830 20.348
202606 17.230 128.670 17.230

Add all the adjusted revenue per share together and divide 10 will get our Cyclically Adjusted Revenue per Share.

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 5.48 mean?
Aon (FRA:4VK) has a Cyclically Adjusted PS Ratio of 5.48 as of Aug. 10, 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 Aon and its competitors. This is near median its historical median of 5.51. Over the past decade, Aon's Cyclically Adjusted PS Ratio has ranged from 3.47 to 7.63. According to the industry distribution chart, Aon ranks #394 out of 417 companies in the Insurance industry, placing it in the top 94.5%.
Is Aon's Cyclically Adjusted PS Ratio too high?
Aon's current Cyclically Adjusted PS Ratio of 5.48 is near median its 10-year median of 5.51. Over the past 10 years, this metric has ranged from a low of 3.47 to a high of 7.63. The Insurance industry median Cyclically Adjusted PS Ratio is 1.22. Aon's value of 5.48 is 349.2% above this industry median. Based on the distribution chart, Aon ranks #394 out of 417 companies in the Insurance industry, which is in the bottom quartile relative to peers. Overall, Aon has a GF Score™ of 93/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Aon's Cyclically Adjusted PS Ratio compare to MRSH and AJG?
According to the Insurance industry distribution chart, Aon ranks #394 out of 417 companies for Cyclically Adjusted PS Ratio. This places Aon in the lower half of its industry. The industry median Cyclically Adjusted PS Ratio is 1.22. Aon's value of 5.48 is 349.2% above this benchmark. Historically, Aon's own Cyclically Adjusted PS Ratio has ranged from 3.47 to 7.63 over the past decade. While the company's 10-year median is 5.51 vs. the industry median of 1.22, Aon 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 Insurance company?
The median Cyclically Adjusted PS Ratio among Insurance companies is 1.22, based on 417 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. Aon's current Cyclically Adjusted PS Ratio of 5.48 is 349.2% 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 Aon and its competitors. For the Insurance industry, the median Cyclically Adjusted PS Ratio is 1.22 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Aon's current Cyclically Adjusted PS Ratio is 5.48, which is near median its own 10-year median of 5.51. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Aon stock overvalued right now?
Based on GuruFocus' analysis, Aon (FRA:4VK) is currently considered Fairly Valued. The stock's GF Value™ is €342.41, compared to a current price of €311.60 — trading 9% below its estimated fair value. The current Cyclically Adjusted PS Ratio is 5.48, which is near median its 10-year median of 5.51 and 349.2% above the Insurance industry median of 1.22. Aon's overall GF Score™ is 93/100 with 2 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 Aon (FRA:4VK), the current Cyclically Adjusted PS Ratio is 5.48 as of Aug. 10, 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 Aon (FRA:4VK) Overvalued in 2026?

Based on GuruFocus' analysis, Aon stock appears to be undervalued. The current stock price of €311.60 is trading 9% below its estimated GF Value™ of €342.41. GuruFocus considers Aon to be Fairly Valued.

Key valuation signals for FRA:4VK:

  • Cyclically Adjusted PS Ratio: 5.48 (near median its 10-year median of 5.51)
  • GF Value™: €342.41 vs. price of €311.60 (9% below fair value)
  • GF Score™: 93/100 with 2 warning signs
  • Industry Position: 349.2% above the Insurance median (#394 of 417)

No single metric tells the full story. See the FRA:4VK stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Aon Business Description

Address 15 George\'s Quay, Dublin 2, Dublin, IRL, D02 VR98
Aon is a leading global provider of insurance and reinsurance brokerage and human resources solutions. Its operations are tilted toward its brokerage operations. Headquartered in London, Aon has about 60,000 employees and operations in over 120 countries.
93GF Score

Get the complete analysis for FRA:4VK

Cyclically Adjusted PS Ratio is just one metric. See GF Value™, 30-year financials, guru trades, warning signs, and more.

€311.60
Price
€342.41
GF Value