ZTEK (Zentek) Cyclically Adjusted Book per Share: $0.24 (As of Mar. 2026)


ZTEK Zentek Ltd ZTEK
16 GF Score
Price $0.48
! 6 Warning Signs
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What is Zentek Cyclically Adjusted Book per Share?

Zentek ZTEK +1.04% 16 Cyclically Adjusted Book per Share is $0.24 as of Mar. 2026. GuruFocus rates ZTEK with a GF Score™ of 16/100. The stock has 6 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.

Zentek's adjusted book value per share for the three months ended in Mar. 2026 was $0.066. 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 $0.24 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Zentek's average Cyclically Adjusted Book Growth Rate was -8.30% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -6.20% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -2.40% 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 Zentek was 3.60% per year. The lowest was -6.20% per year. And the median was -0.85% per year.

As of today (2026-07-10), Zentek's current stock price is $0.4815. Zentek's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was $0.24. Zentek's Cyclically Adjusted PB Ratio of today is 2.01.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Zentek was 18.00. The lowest was 1.73. And the median was 4.25.


Zentek  (NAS:ZTEK) 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.

Zentek's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=0.4815/0.24
=2.01

* 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 Zentek was 18.00. The lowest was 1.73. And the median was 4.25.


Be Aware

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


Zentek Cyclically Adjusted Book per Share Related Terms


Zentek Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Zentek'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.

Zentek Cyclically Adjusted Book per Share Chart

Zentek Annual Data
Trend Mar17 Mar18 Mar19 Mar20 Mar21 Mar22 Mar23 Mar24 Mar25 Mar26
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.31 0.30 0.28 0.25 0.24

Zentek 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 0.25 0.27 0.25 0.24 0.24

ZTEK vs ISRG, BDX, MDLN: Cyclically Adjusted Book per Share Comparison

For the Medical Instruments & Supplies subindustry, Zentek'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.


Zentek Cyclically Adjusted PB Ratio vs Medical Devices & Instruments Industry

For the Medical Devices & Instruments industry and Healthcare sector, Zentek's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


ZTEK
16GF Score
Zentek Ltd ZTEK
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
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Zentek 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, Zentek'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)
=0.066/132.2623*132.2623
=0.066

Current CPI (Mar. 2026) = 132.2623.

Zentek Quarterly Data

Book Value per Share CPI Adj_Book
201606 0.297 102.002 0.385
201609 0.287 101.765 0.373
201612 0.276 101.449 0.360
201703 0.270 102.634 0.348
201706 0.267 103.029 0.343
201709 0.286 103.345 0.366
201712 0.275 103.345 0.352
201803 0.268 105.004 0.338
201806 0.265 105.557 0.332
201809 0.260 105.636 0.326
201812 0.254 105.399 0.319
201903 0.250 106.979 0.309
201906 0.249 107.690 0.306
201909 0.248 107.611 0.305
201912 0.249 107.769 0.306
202003 0.229 107.927 0.281
202006 0.238 108.401 0.290
202009 0.246 108.164 0.301
202012 0.253 108.559 0.308
202103 0.253 110.298 0.303
202106 0.289 111.720 0.342
202109 0.259 112.905 0.303
202112 0.052 113.774 0.060
202203 0.331 117.646 0.372
202206 0.242 120.806 0.265
202209 0.215 120.648 0.236
202212 0.191 120.964 0.209
202303 0.223 122.702 0.240
202306 0.213 124.203 0.227
202309 0.183 125.230 0.193
202312 0.166 125.072 0.176
202403 0.148 126.258 0.155
202406 0.132 127.522 0.137
202409 0.132 127.285 0.137
202412 0.109 127.364 0.113
202503 0.098 129.181 0.100
202506 0.098 129.892 0.100
202509 0.081 130.287 0.082
202512 0.083 130.366 0.084
202603 0.066 132.262 0.066

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 $0.24 mean?
Zentek (ZTEK) has a Cyclically Adjusted Book per Share of $0.24 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 Zentek and its competitors.
Is Zentek's Cyclically Adjusted Book per Share too high?
Zentek's current Cyclically Adjusted Book per Share is $0.24. Overall, Zentek has a GF Score™ of 16/100, reflecting its overall financial health beyond just this single metric.
How does Zentek's Cyclically Adjusted Book per Share compare to ISRG and BDX?
Zentek's Cyclically Adjusted Book per Share of $0.24 can be compared against companies in the Medical Devices & Instruments 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 Medical Devices & Instruments company?
A good Cyclically Adjusted Book per Share depends on the Medical Devices & Instruments 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 Zentek and its competitors. Zentek's current Cyclically Adjusted Book per Share is $0.24. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Zentek stock overvalued right now?
Zentek (ZTEK) has a current Cyclically Adjusted Book per Share of $0.24. The current Cyclically Adjusted Book per Share is $0.24. Zentek's overall GF Score™ is 16/100 with 6 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 Zentek (ZTEK), the current Cyclically Adjusted Book per Share is $0.24 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.

Zentek Business Description

Other Exchanges ZEN:Canada
Address 24 Corporate Court, Guelph, ON, CAN, N1G 5G5
Zentek Ltd is an IP development and commercialization company focused on next-gen healthcare solutions in the areas of prevention, detection, and treatment. It is focused on commercializing ZENGuard, a patent-pending coating with 99% antimicrobial activity, including against COVID-19, and the potential to use similar compounds as pharmaceutical products against infectious diseases.
16GF Score

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

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