Tonner Drones (XPAR:ALTD) Cyclically Adjusted Book per Share: €1,340.08 (As of Dec. 2025)

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What is Tonner Drones Cyclically Adjusted Book per Share?

Tonner Drones XPAR:ALTD -2.22% Cyclically Adjusted Book per Share is €1,340.08 as of Dec. 2025. The stock has 5 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.

Tonner Drones's adjusted book value per share data for the fiscal year that ended in Dec. 2025 was €0.001. 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 €1,340.08 for the trailing ten years ended in Dec. 2025.

During the past 12 months, Tonner Drones's average Cyclically Adjusted Book Growth Rate was -19.40% 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.

As of today (2026-07-15), Tonner Drones's current stock price is € 0.0264. Tonner Drones's Cyclically Adjusted Book per Share for the fiscal year that ended in Dec. 2025 was €1,340.08. Tonner Drones's Cyclically Adjusted PB Ratio of today is 0.00.


Tonner Drones  (XPAR:ALTD) 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.

Tonner Drones's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=0.0264/1340.08
=0.00

* 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.


Be Aware

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


Tonner Drones Cyclically Adjusted Book per Share Related Terms


Tonner Drones Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Tonner Drones'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.

Tonner Drones Cyclically Adjusted Book per Share Chart

Tonner Drones Annual Data
Trend Dec15 Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec24 Dec25
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.00 0.00 2,108.95 1,661.93 1,340.08

Tonner Drones Semi-Annual Data
Jun15 Dec15 Jun16 Dec16 Jun17 Dec17 Jun18 Dec18 Jun19 Dec19 Jun20 Dec20 Jun21 Dec21 Jun22 Dec22 Jun24 Dec24 Jun25 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 2,108.95 0.00 1,661.93 0.00 1,340.08

XPAR:ALTD vs SPCX, GE, RTX: Cyclically Adjusted Book per Share Comparison

For the Aerospace & Defense subindustry, Tonner Drones'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.


Tonner Drones Cyclically Adjusted PB Ratio vs Aerospace & Defense Industry

For the Aerospace & Defense industry and Industrials sector, Tonner Drones's Cyclically Adjusted PB Ratio distribution charts can be found below:

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



Tonner Drones 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, Tonner Drones's adjusted Book Value per Share data for the fiscal year that ended in Dec. 2025 was:

Adj_Book=Book Value per Share /CPI of Dec. 2025 (Change)*Current CPI (Dec. 2025)
=0.001/120.9000*120.9000
=0.001

Current CPI (Dec. 2025) = 120.9000.

Tonner Drones Annual Data

Book Value per Share CPI Adj_Book
201512 0.000 100.040 0.000
201612 0.000 100.650 0.000
201712 0.000 101.850 0.000
201812 0.000 103.470 0.000
201912 0.000 104.980 0.000
202012 2,154.800 104.960 2,482.044
202112 3,713.400 107.850 4,162.727
202212 52.530 114.160 55.631
202412 -0.023 119.950 -0.023
202512 0.001 120.900 0.001

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 €1,340.08 mean?
Tonner Drones (XPAR:ALTD) has a Cyclically Adjusted Book per Share of €1,340.08 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 Tonner Drones and its competitors.
Is Tonner Drones' Cyclically Adjusted Book per Share too high?
Tonner Drones' current Cyclically Adjusted Book per Share is €1,340.08.
How does Tonner Drones' Cyclically Adjusted Book per Share compare to SPCX and GE?
Tonner Drones' Cyclically Adjusted Book per Share of €1,340.08 can be compared against companies in the Aerospace & Defense 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 Aerospace & Defense company?
A good Cyclically Adjusted Book per Share depends on the Aerospace & Defense 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 Tonner Drones and its competitors. Tonner Drones's current Cyclically Adjusted Book per Share is €1,340.08. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Tonner Drones stock overvalued right now?
Tonner Drones (XPAR:ALTD) has a current Cyclically Adjusted Book per Share of €1,340.08. The current Cyclically Adjusted Book per Share is €1,340.08. 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 Tonner Drones (XPAR:ALTD), the current Cyclically Adjusted Book per Share is €1,340.08 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.

Tonner Drones Business Description

Other Exchanges 1DD:Germany
Address 12 Rue Ampere, Cemoi – Batiment A, Grenoble, FRA, 38000
Tonner Drones SA is engaged in the developing and marketing of security and surveillance solutions intended for the military field as well as private and public security: the ISS SPOTTER Wired captive surveillance drone, the automatic drone for surveillance of sensitive sites ISS SPOTTER Automatic or even trailers SPOTTER BOT mobile video security systems.