Japan Post Bank Co (TSE:7182) Cyclically Adjusted PB Ratio: 1.02 (As of Aug. 08, 2026) — 76% 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.

TSE:7182 Japan Post Bank Co Ltd TSE:7182
56 GF Score
Price 円3,188.00
! 5 Warning Signs
View Full Analysis

What is Japan Post Bank Co Cyclically Adjusted PB Ratio?

Japan Post Bank Co TSE:7182 -1.36% 56 Cyclically Adjusted PB Ratio is 1.02 as of Aug. 08, 2026, which is 76% above its 10-year median of 0.58. GuruFocus rates TSE:7182 with a GF Score™ of 56/100. The stock has 5 warning signs investors should review. Among 1,285 Banks companies, Japan Post Bank Co ranks better than 64.2% on this metric.

As of today (2026-08-08), Japan Post Bank Co's current share price is 円3188.00. Japan Post Bank Co's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was 円3,127.55. Japan Post Bank Co's Cyclically Adjusted PB Ratio for today is 1.02.

The historical rank and industry rank for Japan Post Bank Co's Cyclically Adjusted PB Ratio or its related term are showing as below:

TSE:7182' s Cyclically Adjusted PB Ratio Range Over the Past 10 Years
Min: 0.43   Med: 0.58   Max: 1.1
Current: 1.03

During the past years, Japan Post Bank Co's highest Cyclically Adjusted PB Ratio was 1.10. The lowest was 0.43. And the median was 0.58.

TSE:7182's Cyclically Adjusted PB Ratio is ranked better than
64.2% of 1285 companies
in the Banks industry
Industry Median: 1.28 vs TSE:7182: 1.03

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 PB Ratio. The Cyclically Adjusted Book per Share is the average of the inflation adjusted book value per share of a company over the past 10 years.

Japan Post Bank Co's adjusted book value per share data for the three months ended in Mar. 2026 was 円2,586.633. Add all the adjusted book value per share for the past 10 years together and divide the count will get our Cyclically Adjusted Book per Share, which is 円3,127.55 for the trailing ten years ended in Mar. 2026.

Shiller PE for Stocks: The True Measure of Stock Valuation


Japan Post Bank Co  (TSE:7182) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value 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 PB Ratio should give similar results to regular PB Ratio.


Japan Post Bank Co Cyclically Adjusted PB Ratio Related Terms


Japan Post Bank Co Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Japan Post Bank Co's Cyclically Adjusted PB 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 Cyclically Adjusted PB Ratio Chart

Japan Post Bank Co Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 0.00 0.48 0.80

Japan Post Bank Co Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted PB 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 0.48 0.49 0.58 0.70 0.80

Japan Post Bank Co Cyclically Adjusted PB Ratio Competitor Comparison

For the Banks - Regional subindustry, Japan Post Bank Co's Cyclically Adjusted PB Ratio, along with its competitors' market caps and Cyclically Adjusted PB 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 Cyclically Adjusted PB Ratio vs Banks Industry

For the Banks industry and Financial Services sector, Japan Post Bank Co's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Japan Post Bank Co's Cyclically Adjusted PB Ratio falls into.


TSE:7182
56GF Score
Japan Post Bank Co Ltd TSE:7182
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Japan Post Bank Co Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB 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 PB Ratio.

Japan Post Bank Co's Cyclically Adjusted PB Ratio for today is calculated as

Cyclically Adjusted PB Ratio=Share Price/ Cyclically Adjusted Book per Share
=3188.00/3127.55
=1.02

* 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's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 is calculated as:

For example, Japan Post Bank Co's adjusted Book Value per Share data for the three months ended in Mar. 2026 was:

Adj_Book=Book Value per Share/CPI of Mar. 2026 (Change)*Current CPI (Mar. 2026)
=2586.633/112.7000*112.7000
=2,586.633

Current CPI (Mar. 2026) = 112.7000.

Japan Post Bank Co Quarterly Data

Book Value per Share CPI Adj_Book
201606 3,075.613 98.100 3,533.349
201609 3,096.954 98.000 3,561.497
201612 3,128.225 98.400 3,582.835
201703 3,142.053 98.100 3,609.678
201706 3,127.095 98.500 3,577.905
201709 3,170.501 98.800 3,616.553
201712 3,174.043 99.400 3,598.739
201803 3,073.200 99.200 3,491.428
201806 3,028.893 99.200 3,441.091
201809 3,008.767 99.900 3,394.275
201812 2,862.284 99.700 3,235.501
201903 3,029.615 99.700 3,424.650
201906 3,058.576 99.800 3,453.923
201909 3,108.208 100.100 3,499.451
201912 3,056.576 100.500 3,427.623
202003 2,398.988 100.300 2,695.573
202006 2,831.319 99.900 3,194.091
202009 2,949.127 99.900 3,326.993
202012 3,070.262 99.300 3,484.577
202103 3,033.031 99.900 3,421.648
202106 3,047.721 99.500 3,452.042
202109 3,054.457 100.100 3,438.934
202112 3,016.822 100.100 3,396.562
202203 2,739.609 101.100 3,053.946
202206 2,657.521 101.800 2,942.069
202209 2,518.608 103.100 2,753.124
202212 2,455.878 104.100 2,658.765
202303 2,621.176 104.400 2,829.565
202306 2,665.470 105.200 2,855.499
202309 2,494.662 106.200 2,647.348
202312 2,637.511 106.800 2,783.216
202403 2,673.235 107.200 2,810.388
202406 2,552.271 108.200 2,658.419
202409 2,627.590 108.900 2,719.278
202412 2,589.015 110.700 2,635.790
202503 2,511.184 111.100 2,547.349
202506 2,514.857 111.700 2,537.371
202509 2,593.173 112.000 2,609.380
202512 2,621.978 113.000 2,615.017
202603 2,586.633 112.700 2,586.633

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book 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 PB Ratio of 1.02 mean?
Japan Post Bank Co (TSE:7182) has a Cyclically Adjusted PB Ratio of 1.02 as of Aug. 08, 2026. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Japan Post Bank Co and its competitors. This is 76% above median its historical median of 0.58. Over the past decade, Japan Post Bank Co's Cyclically Adjusted PB Ratio has ranged from 0.43 to 1.10. According to the industry distribution chart, Japan Post Bank Co ranks #460 out of 1285 companies in the Banks industry, placing it in the top 35.8%.
Is Japan Post Bank Co's Cyclically Adjusted PB Ratio too high?
Japan Post Bank Co's current Cyclically Adjusted PB Ratio of 1.02 is 76% above median its 10-year median of 0.58. Over the past 10 years, this metric has ranged from a low of 0.43 to a high of 1.10. The Banks industry median Cyclically Adjusted PB Ratio is 1.28. Japan Post Bank Co's value of 1.02 is 20.3% below this industry median. Based on the distribution chart, Japan Post Bank Co ranks #460 out of 1285 companies in the Banks industry, which is above the industry midpoint. Overall, Japan Post Bank Co has a GF Score™ of 56/100, reflecting its overall financial health beyond just this single metric.
How does Japan Post Bank Co's Cyclically Adjusted PB Ratio compare to competitors?
According to the Banks industry distribution chart, Japan Post Bank Co ranks #460 out of 1285 companies for Cyclically Adjusted PB Ratio. This puts Japan Post Bank Co in the upper half of its industry. The industry median Cyclically Adjusted PB Ratio is 1.28. Japan Post Bank Co's value of 1.02 is 20.3% below this benchmark. Historically, Japan Post Bank Co's own Cyclically Adjusted PB Ratio has ranged from 0.43 to 1.10 over the past decade. While the company's 10-year median is 0.58 vs. the industry median of 1.28, Japan Post Bank Co 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 Cyclically Adjusted PB Ratio for a Banks company?
The median Cyclically Adjusted PB Ratio among Banks companies is 1.28, based on 1,285 companies in the industry. Companies in the top quartile (top 25%) have a Cyclically Adjusted PB Ratio significantly above this median, while those in the bottom quartile fall well below. However, Cyclically Adjusted PB Ratio should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Japan Post Bank Co's current Cyclically Adjusted PB Ratio of 1.02 is 20.3% 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 Cyclically Adjusted PB Ratio mean?
A high Cyclically Adjusted PB Ratio can signal that a stock is expensive relative to its fundamentals. Cyclically Adjusted PB Ratio is the ratio of share price to a company's inflation-adjusted book value per share over a 10-year period. View historical data on Japan Post Bank Co and its competitors. For the Banks industry, the median Cyclically Adjusted PB Ratio is 1.28 — values significantly above this may indicate overvaluation, while values below may suggest a bargain or underlying issues. Japan Post Bank Co's current Cyclically Adjusted PB Ratio is 1.02, which is 76% above median its own 10-year median of 0.58. 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?
Japan Post Bank Co (TSE:7182) has a current Cyclically Adjusted PB Ratio of 1.02. The current Cyclically Adjusted PB Ratio is 1.02, which is 76% above median its 10-year median of 0.58 and 20.3% below the Banks industry median of 1.28. Japan Post Bank Co's overall GF Score™ is 56/100 with 5 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted PB Ratio calculated?
Cyclically Adjusted PB Ratio is calculated from a company's financial statements. For Japan Post Bank Co (TSE:7182), the current Cyclically Adjusted PB Ratio is 1.02 as of Aug. 08, 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.

Japan Post Bank Co Business Description

Address 2-3-1 Otemachi, Chiyoda-ku, Tokyo, JPN, 100-8793
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).
56GF Score

Get the complete analysis for TSE:7182

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

円3,188.00
Price