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.
Japan Post Bank CoJPPTY -0.56%52 Shiller PE Ratio is 31.54 as of Sep. 14, 2026, which is 64% above its 10-year median of 19.22. GuruFocus rates JPPTY with a GF Score™ of 52/100 and a GF Value™ of $10.24 (Significantly Overvalued). The stock has 5 warning signs investors should review. Among 1,235 Banks companies, Japan Post Bank Co ranks worse than 92.63% on this metric.
The historical rank and industry rank for Japan Post Bank Co's Shiller PE Ratio or its related term are showing as below:
JPPTY'
s Shiller PE Ratio Range Over the Past 10 Years
Min: 14.11 Med: 19.22 Max: 33.73
Current: 32.01
During the past years, Japan Post Bank Co's highest Shiller PE Ratio was 33.73. The lowest was 14.11. And the median was 19.22.
JPPTY's Shiller PE Ratio is ranked worse than 92.63% of 1235
companies
in the Banks industry
Industry Median: 13.92
vs JPPTY: 32.01
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.
Japan Post Bank Co's adjusted earnings per share data for the three months ended in Mar. 2026 was $0.261. Add all the adjusted EPS for the past 10 years together and divide 10 will get our E10, which is $0.68 for the trailing ten years ended in Mar. 2026.
Shiller PE for Stocks: The True Measure of Stock Valuation
Japan Post Bank Co (OTCPK:JPPTY) 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.
Japan Post Bank Co Shiller PE Ratio Related Terms
Japan Post Bank Co Shiller PE Ratio Historical Data
* Premium members only.
The historical data trend for Japan Post Bank Co'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.
Japan Post Bank Co Shiller PE Ratio Competitor Comparison
For the Banks - Regional subindustry, Japan Post Bank Co'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.
Japan Post Bank Co Shiller PE Ratio vs Banks Industry
For the Banks industry and Financial Services sector, Japan Post Bank Co's Shiller PE Ratio distribution charts can be found below:
* The bar in red indicates where Japan Post Bank Co's Shiller PE Ratio falls into.
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.
* 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.
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.
Japan Post Bank Co (JPPTY) has a Shiller PE Ratio of 31.54 as of Sep. 14, 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 Japan Post Bank Co and its competitors. This is 64% above median its historical median of 19.22. Over the past decade, Japan Post Bank Co's Shiller PE Ratio has ranged from 14.11 to 33.73. According to the industry distribution chart, Japan Post Bank Co ranks #1144 out of 1235 companies in the Banks industry, placing it in the top 92.6%.
Is Japan Post Bank Co's Shiller PE Ratio too high?
Japan Post Bank Co's current Shiller PE Ratio of 31.54 is 64% above median its 10-year median of 19.22. Over the past 10 years, this metric has ranged from a low of 14.11 to a high of 33.73. The Banks industry median Shiller PE Ratio is 13.92. Japan Post Bank Co's value of 31.54 is 126.6% above this industry median. Based on the distribution chart, Japan Post Bank Co ranks #1144 out of 1235 companies in the Banks industry, which is in the bottom quartile relative to peers. Overall, Japan Post Bank Co has a GF Score™ of 52/100 and is considered Significantly Overvalued, reflecting its overall financial health beyond just this single metric.
How does Japan Post Bank Co's Shiller PE Ratio compare to competitors?
According to the Banks industry distribution chart, Japan Post Bank Co ranks #1144 out of 1235 companies for Shiller PE Ratio. This places Japan Post Bank Co in the lower half of its industry. The industry median Shiller PE Ratio is 13.92. Japan Post Bank Co's value of 31.54 is 126.6% above this benchmark. Historically, Japan Post Bank Co's own Shiller PE Ratio has ranged from 14.11 to 33.73 over the past decade. While the company's 10-year median is 19.22 vs. the industry median of 13.92, Japan Post Bank 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 Shiller PE Ratio for a Banks company?
The median Shiller PE Ratio among Banks companies is 13.92, based on 1,235 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. Japan Post Bank Co's current Shiller PE Ratio of 31.54 is 126.6% 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 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 Japan Post Bank Co and its competitors. For the Banks industry, the median Shiller PE Ratio is 13.92 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Japan Post Bank Co's current Shiller PE Ratio is 31.54, which is 64% above median its own 10-year median of 19.22. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Japan Post Bank Co stock overvalued right now?
Based on GuruFocus' analysis, Japan Post Bank Co (JPPTY) is currently considered Significantly Overvalued. The stock's GF Value™ is $10.24, compared to a current price of $21.45 — trading 109.5% above its estimated fair value. The current Shiller PE Ratio is 31.54, which is 64% above median its 10-year median of 19.22 and 126.6% above the Banks industry median of 13.92. Japan Post Bank Co's overall GF Score™ is 52/100 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 Japan Post Bank Co (JPPTY), the current Shiller PE Ratio is 31.54 as of Sep. 14, 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 Japan Post Bank Co (JPPTY) Overvalued in 2026?
Based on GuruFocus' analysis, Japan Post Bank Co stock appears to be overvalued.
The current stock price of $21.45 is trading 109.5% above its estimated GF Value™ of $10.24.
GuruFocus considers Japan Post Bank Co to be Significantly Overvalued.
Key valuation signals for JPPTY:
Shiller PE Ratio: 31.54 (64% above median its 10-year median of 19.22)
GF Value™: $10.24 vs. price of $21.45 (109.5% above fair value)
Industry Position: 126.6% above the Banks median (#1144 of 1235)
No single metric tells the full story. See the JPPTY stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.
Japan Post Bank Co Ltd is the successor of the postal-savings system dating to the Meiji era. It was partially privatized in 2015, when the government sold to the public an 11% stake in parent company Japan Post Holdings, which in turn sold 11% stakes in Japan Post Bank and Japan Post Insurance to the public. Japan Post Bank is now 64% owned by Japan Post Holdings, which is majority owned by the government. The law requires Japan Post Holdings to divest itself of Japan Post Bank eventually. Japan Post Bank has 235 direct branches and also accepts deposits and sells investment products at more than 24,000 post offices across the country through a sales-agency agreement with Japan Post (an unlisted subsidiary of Japan Post Holdings).
52GF Score
Get the complete analysis for JPPTY
Shiller PE 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
JPPTY has been successfully added to your 
