Aflac (AFL) Shiller PE Ratio: 16.37 (As of Aug. 16, 2026) — 18% Above Median

Author: Vera Yuan Vera Yuan
Vera Yuan
Vera Yuan
Director of Data and Quant Analytics at GuruFocus
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.
Reviewed by: Charlie Tian Charlie Tian
Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
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.

AFL Aflac Inc AFL
70 GF Score
Price $121.45
GF Value $128.95
Valuation Fairly Valued
! 5 Warning Signs
View Full Analysis

What is Aflac Shiller PE Ratio?

Aflac AFL +0.29% 70 Shiller PE Ratio is 16.37 as of Aug. 16, 2026, which is 18% above its 10-year median of 13.91. GuruFocus rates AFL with a GF Score™ of 70/100 and a GF Value™ of $128.95 (Fairly Valued). The stock has 5 warning signs investors should review. Among 376 Insurance companies, Aflac ranks better than 51.86% on this metric.

As of today (2026-08-16), Aflac's current share price is $121.45. Aflac's E10 for the quarter that ended in Jun. 2026 was $7.42. Aflac's Shiller PE Ratio for today is 16.37.

The historical rank and industry rank for Aflac's Shiller PE Ratio or its related term are showing as below:

AFL' s Shiller PE Ratio Range Over the Past 10 Years
Min: 7.32   Med: 13.91   Max: 18.15
Current: 16.36

During the past years, Aflac's highest Shiller PE Ratio was 18.15. The lowest was 7.32. And the median was 13.91.

AFL's Shiller PE Ratio is ranked better than
51.86% of 376 companies
in the Insurance industry
Industry Median: 16.77 vs AFL: 16.36

E10 is a concept invented by Prof. Robert Shiller, who uses E10 for his Shiller PE Ratio calculation. E10 is the average of the inflation adjusted earnings of a company over the past 10 years.

Aflac's adjusted earnings per share data for the three months ended in Jun. 2026 was $1.630. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $7.42 for the trailing ten years ended in Jun. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


Aflac  (NYSE:AFL) Shiller PE Ratio Explanation

Compared with the regular PE Ratio, which works poorly for cyclical businesses, the Shiller PE Ratio smoothed out the fluctuations of profit margins during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Shiller PE Ratio should give similar results to regular PE Ratio.

Compared with the PS Ratio, the Shiller PE Ratio makes the comparison between different industries more meaningful.


Be Aware

Shiller PE Ratio assumes that over the long term, businesses and profitability revert to their means. If a company's business model does not work in the future compared with the past, Shiller PE Ratio and PS Ratio will give false valuations.


Aflac Shiller PE Ratio Related Terms


Aflac Shiller PE Ratio Historical Data

* Premium members only.

The historical data trend for Aflac's Shiller PE 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.

Aflac Shiller PE Ratio Chart

Aflac Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Shiller PE Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 12.25 13.38 14.00 15.69 15.62

Aflac Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Shiller PE 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 15.83 16.12 15.62 15.09 15.79

AFL vs MET, PRU, UNM: Shiller PE Ratio Comparison

For the Insurance - Life subindustry, Aflac's Shiller PE Ratio, along with its competitors' market caps and Shiller PE 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.


Aflac Shiller PE Ratio vs Insurance Industry

For the Insurance industry and Financial Services sector, Aflac's Shiller PE Ratio distribution charts can be found below:

* The bar in red indicates where Aflac's Shiller PE Ratio falls into.


AFL
70GF Score
Aflac Inc AFL
Shiller PE Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Aflac Shiller PE Ratio Calculation

For Shiller PE Ratio, the earnings of the past 10 years are inflation-adjusted and averaged. The result is used for P/E calculation. Since it looks at the average over the last 10 years, the Shiller PE Ratio is also called PE10.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The same calculation is applied here to individual companies.

Aflac's Shiller PE Ratio for today is calculated as

Shiller PE Ratio=Share Price/ E10
=121.45/7.42
=16.37

* 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.

Aflac's E10 for the quarter that ended in Jun. 2026 is calculated as:

For example, Aflac's adjusted earnings per share data for the three months ended in Jun. 2026 was:

Adj_EPS=Earnings per Share (Diluted)/CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=1.63/333.9520*333.9520
=1.630

Current CPI (Jun. 2026) = 333.9520.

Aflac Quarterly Data

Earnings per Share (Diluted) CPI Adj_EPS
201609 0.765 241.428 1.058
201612 0.915 241.432 1.266
201703 0.730 243.801 1.000
201706 0.890 244.955 1.213
201709 0.900 246.819 1.218
201712 2.975 246.524 4.030
201803 0.910 249.554 1.218
201806 1.070 251.989 1.418
201809 1.090 252.439 1.442
201812 0.690 251.233 0.917
201903 1.230 254.202 1.616
201906 1.090 256.143 1.421
201909 1.040 256.759 1.353
201912 1.060 256.974 1.378
202003 0.780 258.115 1.009
202006 1.120 257.797 1.451
202009 3.440 260.280 4.414
202012 1.360 260.474 1.744
202103 1.870 264.877 2.358
202106 1.620 271.696 1.991
202109 1.320 274.310 1.607
202112 1.570 278.802 1.881
202203 1.600 287.504 1.858
202206 2.170 296.311 2.446
202209 2.820 296.808 3.173
202212 0.310 296.797 0.349
202303 1.940 301.836 2.146
202306 2.710 305.109 2.966
202309 2.640 307.789 2.864
202312 0.460 306.746 0.501
202403 3.250 312.332 3.475
202406 3.100 314.175 3.295
202409 -0.170 315.301 -0.180
202412 3.420 315.605 3.619
202503 0.050 319.799 0.052
202506 1.110 322.561 1.149
202509 3.080 324.800 3.167
202512 2.640 324.054 2.721
202603 1.980 330.213 2.002
202606 1.630 333.952 1.630

Add all the adjusted EPS together and divide 10 will get our E10.

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.

Frequently Asked Questions Learn more about Shiller PE Ratio →
What does a Shiller PE Ratio of 16.37 mean?
Aflac (AFL) has a Shiller PE Ratio of 16.37 as of Aug. 16, 2026. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Aflac and its competitors. This is 18% above median its historical median of 13.91. Over the past decade, Aflac's Shiller PE Ratio has ranged from 7.32 to 18.15. According to the industry distribution chart, Aflac ranks #181 out of 376 companies in the Insurance industry, placing it in the top 48.1%.
Is Aflac's Shiller PE Ratio too high?
Aflac's current Shiller PE Ratio of 16.37 is 18% above median its 10-year median of 13.91. Over the past 10 years, this metric has ranged from a low of 7.32 to a high of 18.15. The Insurance industry median Shiller PE Ratio is 16.77. Aflac's value of 16.37 is 2.4% below this industry median. Based on the distribution chart, Aflac ranks #181 out of 376 companies in the Insurance industry, which is above the industry midpoint. Overall, Aflac has a GF Score™ of 70/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Aflac's Shiller PE Ratio compare to MET and PRU?
According to the Insurance industry distribution chart, Aflac ranks #181 out of 376 companies for Shiller PE Ratio. This puts Aflac in the upper half of its industry. The industry median Shiller PE Ratio is 16.77. Aflac's value of 16.37 is 2.4% below this benchmark. Historically, Aflac's own Shiller PE Ratio has ranged from 7.32 to 18.15 over the past decade. While the company's 10-year median is 13.91 vs. the industry median of 16.77, Aflac has consistently been below 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 Shiller PE Ratio for an Insurance company?
The median Shiller PE Ratio among Insurance companies is 16.77, based on 376 companies in the industry. Companies in the top quartile (top 25%) have a Shiller PE Ratio significantly above this median, while those in the bottom quartile fall well below. However, Shiller PE Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Aflac's current Shiller PE Ratio of 16.37 is 2.4% below 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 Shiller PE Ratio mean?
A high Shiller PE Ratio can signal that a stock is expensive relative to its fundamentals. Shiller price-earnings ratio is the ratio of share price to a company's inflation-adjusted earnings over a 10-year period. View historical data on Aflac and its competitors. For the Insurance industry, the median Shiller PE Ratio is 16.77 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Aflac's current Shiller PE Ratio is 16.37, which is 18% above median its own 10-year median of 13.91. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Aflac stock overvalued right now?
Based on GuruFocus' analysis, Aflac (AFL) is currently considered Fairly Valued. The stock's GF Value™ is $128.95, compared to a current price of $121.45 — trading 5.8% below its estimated fair value. The current Shiller PE Ratio is 16.37, which is 18% above median its 10-year median of 13.91 and 2.4% below the Insurance industry median of 16.77. Aflac's overall GF Score™ is 70/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Shiller PE Ratio calculated?
Shiller PE Ratio is calculated from a company's financial statements. For Aflac (AFL), the current Shiller PE Ratio is 16.37 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 Aflac (AFL) Overvalued in 2026?

Based on GuruFocus' analysis, Aflac stock appears to be undervalued. The current stock price of $121.45 is trading 5.8% below its estimated GF Value™ of $128.95. GuruFocus considers Aflac to be Fairly Valued.

Key valuation signals for AFL:

  • Shiller PE Ratio: 16.37 (18% above median its 10-year median of 13.91)
  • GF Value™: $128.95 vs. price of $121.45 (5.8% below fair value)
  • GF Score™: 70/100 with 5 warning signs
  • Industry Position: 2.4% below the Insurance median (#181 of 376)

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


Aflac Business Description

Address 1932 Wynnton Road, Columbus, GA, USA, 31999
Aflac Inc offers supplemental health insurance and life insurance in the United States and Japan. In addition to its cancer policies, the company has broadened its product offerings to include accident, dental and vision, disability, and long-term-care insurance. It markets its products through independent distributors, selling the majority of its policies directly to consumers at their places of work, and also reaches out to its customers outside of their worksite through digital mediums. The company has two reportable business segments: Aflac Japan, which generates the maximum revenue, and Aflac U.S.
70GF Score

Get the complete analysis for AFL

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

$121.45
Price
$128.95
GF Value