BP Castrol KK (TSE:5015) Cyclically Adjusted Book per Share: 円505.77 (As of Dec. 2025)


TSE:5015 BP Castrol KK TSE:5015
79 GF Score
Price 円995.00
GF Value 円1,122.94
Valuation Modestly Undervalued
! 3 Warning Signs
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What is BP Castrol KK Cyclically Adjusted Book per Share?

BP Castrol KK TSE:5015 +0.61% 79 Cyclically Adjusted Book per Share is 円505.77 as of Dec. 2025. GuruFocus rates TSE:5015 with a GF Score™ of 79/100 and a GF Value™ of 円1,122.94 (Modestly Undervalued). The stock has 3 warning signs investors should review.

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. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and 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.

BP Castrol KK's adjusted book value per share for the three months ended in Dec. 2025 was 円438.891. 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505.77 for the trailing ten years ended in Dec. 2025.

During the past 12 months, BP Castrol KK's average Cyclically Adjusted Book Growth Rate was -0.20% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 0.90% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 2.20% per year. Please click Growth Rate Calculation Example (GuruFocus) to see how GuruFocus calculates Wal-Mart Stores Inc (WMT)'s revenue growth rate. You can apply the same method to get the Cyclically Adjusted Book Growth Rate using Cyclically Adjusted Book per Share data.

During the past 13 years, the highest 3-Year average Cyclically Adjusted Book Growth Rate of BP Castrol KK was 4.00% per year. The lowest was 0.90% per year. And the median was 3.00% per year.

As of today (2026-07-09), BP Castrol KK's current stock price is 円995.00. BP Castrol KK's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was 円505.77. BP Castrol KK's Cyclically Adjusted PB Ratio of today is 1.97.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of BP Castrol KK was 3.85. The lowest was 1.62. And the median was 2.31.


BP Castrol KK  (TSE:5015) Cyclically Adjusted Book per Share Explanation

If a company grows much fast than inflation, Cyclically Adjusted Book per Share may underestimate the company's equity. Cyclically Adjusted PB Ratio can seem to be too high even the actual PB Ratio is low.

For the Cyclically Adjusted PB Ratio, the book value of the past 10 years are inflation-adjusted and averaged. The result is used for P/B calculation. Since it looks at the average over the last 10 years, the Cyclically Adjusted PB Ratio is also called CAPB Ratio.

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.

BP Castrol KK's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=995.00/505.77
=1.97

* 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.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of BP Castrol KK was 3.85. The lowest was 1.62. And the median was 2.31.


Be Aware

Cyclically Adjusted PB Ratio works better for cyclical companies. It gives you a better idea on the company's real book value.


BP Castrol KK Cyclically Adjusted Book per Share Related Terms


BP Castrol KK Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for BP Castrol KK's Cyclically Adjusted Book per Share 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.

BP Castrol KK Cyclically Adjusted Book per Share Chart

BP Castrol KK Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 470.76 491.69 498.18 506.54 505.77

BP Castrol KK Quarterly Data
Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26
Cyclically Adjusted Book per Share 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 505.72 505.72 504.42 505.77 0.00

TSE:5015 vs VLO, MPC, PSX: Cyclically Adjusted Book per Share Comparison

For the Oil & Gas Refining & Marketing subindustry, BP Castrol KK'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.


BP Castrol KK Cyclically Adjusted PB Ratio vs Oil & Gas Industry

For the Oil & Gas industry and Energy sector, BP Castrol KK's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where BP Castrol KK's Cyclically Adjusted PB Ratio falls into.


TSE:5015
79GF Score
BP Castrol KK TSE:5015
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

BP Castrol KK Cyclically Adjusted Book per Share Calculation

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. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted Book per Share and 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.

What is Cyclically Adjusted Book per Share? How do we calculate Cyclically Adjusted Book per Share?

Cyclically Adjusted Book per Share is the average of the inflation adjusted Book Value per Share of a company over the past 10 years. Let's use an example to explain.

If we want to calculate the Cyclically Adjusted Book per Share of Wal-Mart (WMT) for Dec. 31, 2010, we need to have the inflation data and the book value per share from 2001 through 2010.

We adjusted the 2001 book value per share data with the total inflation from 2001 through 2010 to the equivalent book value in 2010. If the total inflation from 2001 to 2010 is 40%, and Wal-Mart's book value is $1 a share in 2001, then the 2001's equivalent book value in 2010 is $1.4 a share. If Wal-Mart's book value is $1 again in 2002, and the total inflation from 2002 through 2010 is 35%, then the equivalent 2002 book value in 2010 is $1.35. So on and so forth, you get the equivalent book value per share of past 10 years. Then you add them together and divided the sum by the count to get 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.

For example, BP Castrol KK's adjusted Book Value per Share data for the three months ended in Dec. 2025 was:

Adj_Book= Book Value per Share /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=438.891/113.0000*113.0000
=438.891

Current CPI (Dec. 2025) = 113.0000.

BP Castrol KK Quarterly Data

Book Value per Share CPI Adj_Book
201603 461.925 97.900 533.172
201606 480.880 98.100 553.919
201609 478.398 98.000 551.622
201612 511.940 98.400 587.899
201703 467.297 98.100 538.273
201706 491.108 98.500 563.403
201709 476.503 98.800 544.988
201712 500.979 99.400 569.523
201803 459.428 99.200 523.340
201806 479.237 99.200 545.905
201809 465.708 99.900 526.777
201812 484.451 99.700 549.077
201903 456.950 99.700 517.907
201906 476.111 99.800 539.084
201909 458.385 100.100 517.458
201912 480.247 100.500 539.979
202003 450.073 100.300 507.061
202006 467.415 99.900 528.708
202009 458.011 99.900 518.071
202012 477.818 99.300 543.741
202103 458.009 99.900 518.068
202106 475.069 99.500 539.526
202109 459.140 100.100 518.310
202112 476.208 100.100 537.577
202203 447.015 101.100 499.631
202206 454.455 101.800 504.454
202209 437.173 103.100 479.152
202212 439.195 104.100 476.744
202303 421.760 104.400 456.503
202306 434.176 105.200 466.368
202309 425.839 106.200 453.106
202312 434.378 106.800 459.595
202403 424.112 107.200 447.058
202406 438.435 108.200 457.885
202409 425.209 108.900 441.218
202412 435.876 110.700 444.932
202503 416.224 111.100 423.342
202506 433.540 111.700 438.586
202509 426.127 112.000 429.932
202512 438.891 113.000 438.891

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.

What does a Cyclically Adjusted Book per Share of 円505.77 mean?
BP Castrol KK (TSE:5015) has a Cyclically Adjusted Book per Share of 円505.77 as of Dec. 2025. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on BP Castrol KK and its competitors.
Is BP Castrol KK's Cyclically Adjusted Book per Share too high?
BP Castrol KK's current Cyclically Adjusted Book per Share is 円505.77. Overall, BP Castrol KK has a GF Score™ of 79/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does BP Castrol KK's Cyclically Adjusted Book per Share compare to VLO and MPC?
BP Castrol KK's Cyclically Adjusted Book per Share of 円505.77 can be compared against companies in the Oil & Gas industry. See the competitive comparison table and distribution chart on this page for a detailed peer-by-peer breakdown.
What is a good Cyclically Adjusted Book per Share for an Oil & Gas company?
A good Cyclically Adjusted Book per Share depends on the Oil & Gas industry context. However, Cyclically Adjusted Book per Share should not be evaluated in isolation — investors should consider it alongside profitability, growth, and financial strength metrics. Use the industry distribution chart on this page to see where any company falls relative to its peers.
What does a high Cyclically Adjusted Book per Share mean?
A high Cyclically Adjusted Book per Share can signal that a stock is expensive relative to its fundamentals. Cyclically adjusted book value per share represents the company's inflation-adjusted book value per share over a 10-year period. View historical data on BP Castrol KK and its competitors. BP Castrol KK's current Cyclically Adjusted Book per Share is 円505.77. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is BP Castrol KK stock overvalued right now?
Based on GuruFocus' analysis, BP Castrol KK (TSE:5015) is currently considered Modestly Undervalued. The stock's GF Value™ is 円1,122.94, compared to a current price of 円995.00 — trading 11.4% below its estimated fair value. The current Cyclically Adjusted Book per Share is 円505.77. BP Castrol KK's overall GF Score™ is 79/100 with 3 warning signs to review. Investors should evaluate multiple metrics — including profitability, growth, and financial strength — before making a decision.
How is Cyclically Adjusted Book per Share calculated?
Cyclically Adjusted Book per Share is calculated from a company's financial statements. For BP Castrol KK (TSE:5015), the current Cyclically Adjusted Book per Share is 円505.77 as of Dec. 2025. 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 BP Castrol KK (TSE:5015) Overvalued in 2026?

Based on GuruFocus' analysis, BP Castrol KK stock appears to be undervalued. The current stock price of 円995.00 is trading 11.4% below its estimated GF Value™ of 円1,122.94. GuruFocus considers BP Castrol KK to be Modestly Undervalued.

Key valuation signals for TSE:5015:

  • Cyclically Adjusted Book per Share: 円505.77
  • GF Value™: 円1,122.94 vs. price of 円995.00 (11.4% below fair value)
  • GF Score™: 79/100 with 3 warning signs

No single metric tells the full story. See the TSE:5015 stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


BP Castrol KK Business Description

Industry EnergyOil & Gas
Address 1-11-2 Osaki, 20th Floor, Gate City Osaki East Tower, Shinagawa-ku, Tokyo, JPN, 141-0032
BP Castrol KK engages in the development, manufacture, import, and sale of automotive lubricating oil in Japan. The company sells its product under the brand name BP brand and the Castrol brand. The BP brand is divided into Vervis, Vervis sport, and mini. The Castrol brand is the top brand of lubricant. Both the brands are used for the consumer business and professional business.
79GF Score

Get the complete analysis for TSE:5015

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

円995.00
Price
円1,122.94
GF Value