ZPHYF (Zephyr Minerals) Cyclically Adjusted Book per Share: $0.09 (As of Dec. 2025)

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What is Zephyr Minerals Cyclically Adjusted Book per Share?

Zephyr Minerals ZPHYF -3.75% Cyclically Adjusted Book per Share is $0.09 as of Dec. 2025. 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.

Zephyr Minerals's adjusted book value per share for the three months ended in Dec. 2025 was $0.045. 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 $0.09 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Zephyr Minerals's average Cyclically Adjusted Book Growth Rate was 11.10% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 7.70% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 7.90% 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 Zephyr Minerals was 8.70% per year. The lowest was 7.70% per year. And the median was 8.70% per year.

As of today (2026-08-01), Zephyr Minerals's current stock price is $0.03494. Zephyr Minerals's Cyclically Adjusted Book per Share for the quarter that ended in Dec. 2025 was $0.09. Zephyr Minerals's Cyclically Adjusted PB Ratio of today is 0.39.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Zephyr Minerals was 0.47. The lowest was 0.00. And the median was 0.00.


Zephyr Minerals  (OTCPK:ZPHYF) 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.

Zephyr Minerals's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=0.03494/0.09
=0.39

* 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 Zephyr Minerals was 0.47. 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.


Zephyr Minerals Cyclically Adjusted Book per Share Related Terms


Zephyr Minerals Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Zephyr Minerals'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.

Zephyr Minerals Cyclically Adjusted Book per Share Chart

Zephyr Minerals 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 0.06 0.06 0.07 0.06 0.09

Zephyr Minerals Quarterly Data
Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25
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 0.06 0.08 0.07 0.08 0.09

ZPHYF vs NEM, AU: Cyclically Adjusted Book per Share Comparison

For the Gold subindustry, Zephyr Minerals'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.


Zephyr Minerals Cyclically Adjusted PB Ratio vs Metals & Mining Industry

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

* The bar in red indicates where Zephyr Minerals's Cyclically Adjusted PB Ratio falls into.



Zephyr Minerals 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, Zephyr Minerals'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)
=0.045/130.3661*130.3661
=0.045

Current CPI (Dec. 2025) = 130.3661.

Zephyr Minerals Quarterly Data

Book Value per Share CPI Adj_Book
201603 0.050 101.054 0.065
201606 0.049 102.002 0.063
201609 0.048 101.765 0.061
201612 0.049 101.449 0.063
201703 0.052 102.634 0.066
201706 0.058 103.029 0.073
201709 0.064 103.345 0.081
201712 0.059 103.345 0.074
201803 0.057 105.004 0.071
201806 0.066 105.557 0.082
201809 0.065 105.636 0.080
201812 0.063 105.399 0.078
201903 0.063 106.979 0.077
201906 0.067 107.690 0.081
201909 0.066 107.611 0.080
201912 0.066 107.769 0.080
202003 0.075 107.927 0.091
202006 0.079 108.401 0.095
202009 0.084 108.164 0.101
202012 0.086 108.559 0.103
202103 0.087 110.298 0.103
202106 0.088 111.720 0.103
202109 0.084 112.905 0.097
202112 0.082 113.774 0.094
202203 0.081 117.646 0.090
202206 0.078 120.806 0.084
202209 0.073 120.648 0.079
202212 0.070 120.964 0.075
202303 0.068 122.702 0.072
202306 0.068 124.203 0.071
202309 0.052 125.230 0.054
202312 0.051 125.072 0.053
202403 0.050 126.258 0.052
202406 0.048 127.522 0.049
202409 0.048 127.285 0.049
202412 0.046 127.364 0.047
202503 0.045 129.181 0.045
202506 0.047 129.892 0.047
202509 0.044 130.287 0.044
202512 0.045 130.366 0.045

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 $0.09 mean?
Zephyr Minerals (ZPHYF) has a Cyclically Adjusted Book per Share of $0.09 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 Zephyr Minerals and its competitors.
Is Zephyr Minerals' Cyclically Adjusted Book per Share too high?
Zephyr Minerals' current Cyclically Adjusted Book per Share is $0.09.
How does Zephyr Minerals' Cyclically Adjusted Book per Share compare to NEM and AU?
Zephyr Minerals' Cyclically Adjusted Book per Share of $0.09 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 Zephyr Minerals and its competitors. Zephyr Minerals's current Cyclically Adjusted Book per Share is $0.09. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Zephyr Minerals stock overvalued right now?
Zephyr Minerals (ZPHYF) has a current Cyclically Adjusted Book per Share of $0.09. The current Cyclically Adjusted Book per Share is $0.09. 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 Zephyr Minerals (ZPHYF), the current Cyclically Adjusted Book per Share is $0.09 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.

Zephyr Minerals Business Description

Other Exchanges ZFR:Canada
Address 653 - 1475 Lower Water Street, Halifax, NS, CAN, B3J 3Z2
Zephyr Minerals Ltd is an exploration stage mining company. The company operates in one segment, the exploration and evaluation of mineral properties. Geographically, it operates in USA and Zimbabwe. Its property in USA includes Dawson, and in Zimbabwe includes Nyanga North, MC Gold, MAP Gold, and MC-2 Gold.