ERVFF (Boron One Holdings) Cyclically Adjusted Book per Share: $0.08 (As of Mar. 2026)


What is Boron One Holdings Cyclically Adjusted Book per Share?

Boron One Holdings ERVFF Cyclically Adjusted Book per Share is $0.08 as of Mar. 2026. The stock has 1 warning sign 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.

Boron One Holdings's adjusted book value per share for the three months ended in Mar. 2026 was $0.031. 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 $0.08 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Boron One Holdings's average Cyclically Adjusted Book Growth Rate was -7.70% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -9.10% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -7.90% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was -3.60% 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 Boron One Holdings was 58.70% per year. The lowest was -9.10% per year. And the median was -1.80% per year.

As of today (2026-07-02), Boron One Holdings's current stock price is $0.03385. Boron One Holdings's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was $0.08. Boron One Holdings's Cyclically Adjusted PB Ratio of today is 0.42.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Boron One Holdings was 0.48. The lowest was 0.00. And the median was 0.00.


Boron One Holdings  (OTCPK:ERVFF) 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.

Boron One Holdings's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=0.03385/0.08
=0.42

* 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 Boron One Holdings was 0.48. The lowest was 0.00. And the median was 0.00.


Be Aware

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


Boron One Holdings Cyclically Adjusted Book per Share Related Terms


Boron One Holdings Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Boron One Holdings'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.

Boron One Holdings Cyclically Adjusted Book per Share Chart

Boron One Holdings Annual Data
Trend Jun16 Jun17 Jun18 Jun19 Jun20 Jun21 Jun22 Jun23 Jun24 Jun25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.15 0.12 0.10 0.09 0.11

Boron One Holdings 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 0.11 0.11 0.08 0.10 0.08

Boron One Holdings Cyclically Adjusted Book per Share Competitor Comparison

For the Other Industrial Metals & Mining subindustry, Boron One Holdings'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.


Boron One Holdings Cyclically Adjusted PB Ratio vs Metals & Mining Industry

For the Metals & Mining industry and Basic Materials sector, Boron One Holdings's Cyclically Adjusted PB Ratio distribution charts can be found below:

* The bar in red indicates where Boron One Holdings's Cyclically Adjusted PB Ratio falls into.



Boron One Holdings 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, Boron One Holdings'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)
=0.031/132.2623*132.2623
=0.031

Current CPI (Mar. 2026) = 132.2623.

Boron One Holdings Quarterly Data

Book Value per Share CPI Adj_Book
201606 0.127 102.002 0.165
201609 0.122 101.765 0.159
201612 0.119 101.449 0.155
201703 0.117 102.634 0.151
201706 0.117 103.029 0.150
201709 0.123 103.345 0.157
201712 0.116 103.345 0.148
201803 0.105 105.004 0.132
201806 0.093 105.557 0.117
201809 0.092 105.636 0.115
201812 0.087 105.399 0.109
201903 0.084 106.979 0.104
201906 0.083 107.690 0.102
201909 0.084 107.611 0.103
201912 0.075 107.769 0.092
202003 0.069 107.927 0.085
202006 0.059 108.401 0.072
202009 0.057 108.164 0.070
202012 0.054 108.559 0.066
202103 0.055 110.298 0.066
202106 0.055 111.720 0.065
202109 0.051 112.905 0.060
202112 0.049 113.774 0.057
202203 0.048 117.646 0.054
202206 0.047 120.806 0.051
202209 0.044 120.648 0.048
202212 0.042 120.964 0.046
202303 0.040 122.702 0.043
202306 0.041 124.203 0.044
202309 0.039 125.230 0.041
202312 0.038 125.072 0.040
202403 0.037 126.258 0.039
202406 0.036 127.522 0.037
202409 0.036 127.285 0.037
202412 0.033 127.364 0.034
202503 0.032 129.181 0.033
202506 0.033 129.892 0.034
202509 0.032 130.287 0.032
202512 0.032 130.366 0.032
202603 0.031 132.262 0.031

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 $0.08 mean?
Boron One Holdings (ERVFF) has a Cyclically Adjusted Book per Share of $0.08 as of Mar. 2026. 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 Boron One Holdings and its competitors.
Is Boron One Holdings' Cyclically Adjusted Book per Share too high?
Boron One Holdings' current Cyclically Adjusted Book per Share is $0.08.
How does Boron One Holdings' Cyclically Adjusted Book per Share compare to competitors?
Boron One Holdings' Cyclically Adjusted Book per Share of $0.08 can be compared against companies in the Metals & Mining 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 a Metals & Mining company?
A good Cyclically Adjusted Book per Share depends on the Metals & Mining 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 Boron One Holdings and its competitors. Boron One Holdings's current Cyclically Adjusted Book per Share is $0.08. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Boron One Holdings stock overvalued right now?
Boron One Holdings (ERVFF) has a current Cyclically Adjusted Book per Share of $0.08. The current Cyclically Adjusted Book per Share is $0.08. 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 Boron One Holdings (ERVFF), the current Cyclically Adjusted Book per Share is $0.08 as of Mar. 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.

Boron One Holdings Business Description

Other Exchanges EKV:GermanyBONE:Canada
Address 645 Fort Street, Suite 203, Victoria, BC, CAN, V8W 1G2
Boron One Holdings Inc is an international junior mining and exploration company engaged in the acquisition, exploration, and evaluation of mineral properties. The company holds an exploration license for the Piskanja boron deposit in Serbia, a sedimentary basin deposit composed mainly of shales, marls, and limestone with two primary borate beds. Boron One maintains a geographic presence in both Canada and Serbia.