TAOIF (TAG Oil) Cyclically Adjusted Book per Share: $0.52 (As of Mar. 2026)


What is TAG Oil Cyclically Adjusted Book per Share?

TAG Oil TAOIF +7.97% Cyclically Adjusted Book per Share is $0.52 as of Mar. 2026.

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.

TAG Oil's adjusted book value per share for the three months ended in Mar. 2026 was $0.113. 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 $0.52 for the trailing ten years ended in Mar. 2026.

During the past 12 months, TAG Oil's average Cyclically Adjusted Book Growth Rate was -26.10% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -29.00% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -20.50% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was -9.40% 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 TAG Oil was 10.60% per year. The lowest was -29.00% per year. And the median was -3.25% per year.

As of today (2026-07-08), TAG Oil's current stock price is $0.0637. TAG Oil's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was $0.52. TAG Oil's Cyclically Adjusted PB Ratio of today is 0.12.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of TAG Oil was 0.47. The lowest was 0.05. And the median was 0.18.


TAG Oil  (OTCPK:TAOIF) 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.

TAG Oil's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=0.0637/0.52
=0.12

* 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 TAG Oil was 0.47. The lowest was 0.05. And the median was 0.18.


Be Aware

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


TAG Oil Cyclically Adjusted Book per Share Related Terms


TAG Oil Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for TAG Oil'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.

TAG Oil Cyclically Adjusted Book per Share Chart

TAG Oil Annual Data
Trend Mar16 Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 1.70 1.55 1.24 0.69 0.53

TAG Oil 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 0.65 0.64 0.57 0.53 0.52

TAOIF vs COP, EOG, FANG: Cyclically Adjusted Book per Share Comparison

For the Oil & Gas E&P subindustry, TAG Oil'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.


TAG Oil Cyclically Adjusted PB Ratio vs Oil & Gas Industry

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

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



TAG Oil 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, TAG Oil'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)
=0.113/132.2623*132.2623
=0.113

Current CPI (Mar. 2026) = 132.2623.

TAG Oil Quarterly Data

Book Value per Share CPI Adj_Book
201606 0.967 102.002 1.254
201609 0.951 101.765 1.236
201612 0.885 101.449 1.154
201703 1.060 102.634 1.366
201706 1.067 103.029 1.370
201709 1.043 103.345 1.335
201712 0.996 103.345 1.275
201803 1.132 105.004 1.426
201806 1.077 105.557 1.349
201809 0.513 105.636 0.642
201812 0.528 105.399 0.663
201903 0.536 106.979 0.663
201906 0.513 107.690 0.630
201909 0.515 107.611 0.633
201912 0.498 107.769 0.611
202003 0.472 107.927 0.578
202006 0.250 108.401 0.305
202009 0.238 108.164 0.291
202012 0.198 108.559 0.241
202103 0.174 110.298 0.209
202106 0.169 111.720 0.200
202109 0.156 112.905 0.183
202112 0.145 113.774 0.169
202203 0.148 117.646 0.166
202206 0.146 120.806 0.160
202209 0.144 120.648 0.158
202212 0.184 120.964 0.201
202303 0.183 122.702 0.197
202306 0.182 124.203 0.194
202309 0.200 125.230 0.211
202312 0.187 125.072 0.198
202403 0.186 126.258 0.195
202406 0.177 127.522 0.184
202409 0.168 127.285 0.175
202412 0.154 127.364 0.160
202503 0.145 129.181 0.148
202506 0.146 129.892 0.149
202509 0.144 130.287 0.146
202512 0.137 130.366 0.139
202603 0.113 132.262 0.113

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 $0.52 mean?
TAG Oil (TAOIF) has a Cyclically Adjusted Book per Share of $0.52 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 TAG Oil and its competitors.
Is TAG Oil's Cyclically Adjusted Book per Share too high?
TAG Oil's current Cyclically Adjusted Book per Share is $0.52.
How does TAG Oil's Cyclically Adjusted Book per Share compare to COP and EOG?
TAG Oil's Cyclically Adjusted Book per Share of $0.52 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 TAG Oil and its competitors. TAG Oil's current Cyclically Adjusted Book per Share is $0.52. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is TAG Oil stock overvalued right now?
Based on GuruFocus' analysis, TAG Oil (TAOIF) is currently considered Significantly Undervalued. The stock's GF Value™ is $0.34, compared to a current price of $0.06 — trading 81.3% below its estimated fair value. The current Cyclically Adjusted Book per Share is $0.52. 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 TAG Oil (TAOIF), the current Cyclically Adjusted Book per Share is $0.52 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.

TAG Oil Business Description

Industry EnergyOil & Gas
Other Exchanges T0P:GermanyTAO:Canada
Address 1050 West Pender Street, Suite 1710, Vancouver, BC, CAN, V6E 3S7
TAG Oil Ltd is focused on oil and gas exploration and development opportunities in the Middle East and North Africa. The company is developing the unconventional heavy oil Abu Roash F (ARF) formation in the Badr oil field (BED-1) and Southeast Ras Qattara (SERQ) concessions.