GURUFOCUS.COM » STOCK LIST » Technology » Hardware » Acorn Energy Inc (OTCPK:ACFN) » Definitions » Cyclically Adjusted Book per Share

ACFN (Acorn Energy) Cyclically Adjusted Book per Share : $0.07 (As of Mar. 2025)


View and export this data going back to 1992. Start your Free Trial

What is Acorn Energy Cyclically Adjusted Book per Share?

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.

Acorn Energy's adjusted book value per share for the three months ended in Mar. 2025 was $2.435. 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 $0.07 for the trailing ten years ended in Mar. 2025.

During the past 12 months, Acorn Energy's average Cyclically Adjusted Book Growth Rate was -94.60% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was -76.80% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was -59.80% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was -35.20% 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 Acorn Energy was 6.40% per year. The lowest was -76.80% per year. And the median was -11.60% per year.

As of today (2025-07-04), Acorn Energy's current stock price is $15.98. Acorn Energy's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2025 was $0.07. Acorn Energy's Cyclically Adjusted PB Ratio of today is 228.29.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Acorn Energy was 260.94. The lowest was 0.04. And the median was 0.24.


Acorn Energy Cyclically Adjusted Book per Share Historical Data

The historical data trend for Acorn Energy'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.

* Premium members only.

Acorn Energy Cyclically Adjusted Book per Share Chart

Acorn Energy Annual Data
Trend Dec15 Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24
Cyclically Adjusted Book per Share
Get a 7-Day Free Trial Premium Member Only Premium Member Only 16.64 11.97 5.83 1.95 0.15

Acorn Energy Quarterly Data
Jun20 Sep20 Dec20 Mar21 Jun21 Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25
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 1.30 0.75 0.29 0.15 0.07

Competitive Comparison of Acorn Energy's Cyclically Adjusted Book per Share

For the Scientific & Technical Instruments subindustry, Acorn Energy'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.


Acorn Energy's Cyclically Adjusted PB Ratio Distribution in the Hardware Industry

For the Hardware industry and Technology sector, Acorn Energy's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


;
;

Acorn Energy 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, Acorn Energy's adjusted Book Value per Share data for the three months ended in Mar. 2025 was:

Adj_Book= Book Value per Share /CPI of Mar. 2025 (Change)*Current CPI (Mar. 2025)
=2.435/134.9266*134.9266
=2.435

Current CPI (Mar. 2025) = 134.9266.

Acorn Energy Quarterly Data

Book Value per Share CPI Adj_Book
201506 2.503 100.684 3.354
201509 1.236 100.392 1.661
201512 0.214 99.792 0.289
201603 -1.388 100.470 -1.864
201606 0.439 101.688 0.582
201609 0.793 101.861 1.050
201612 0.727 101.863 0.963
201703 0.617 102.862 0.809
201706 0.356 103.349 0.465
201709 0.628 104.136 0.814
201712 0.255 104.011 0.331
201803 -0.319 105.290 -0.409
201806 -0.601 106.317 -0.763
201809 -0.594 106.507 -0.753
201812 -0.724 105.998 -0.922
201903 -0.849 107.251 -1.068
201906 0.191 108.070 0.238
201909 -0.237 108.329 -0.295
201912 -0.267 108.420 -0.332
202003 -0.372 108.902 -0.461
202006 -0.380 108.767 -0.471
202009 -0.390 109.815 -0.479
202012 -0.215 109.897 -0.264
202103 -0.201 111.754 -0.243
202106 -0.191 114.631 -0.225
202109 -0.173 115.734 -0.202
202112 -0.193 117.630 -0.221
202203 -0.231 121.301 -0.257
202206 -0.314 125.017 -0.339
202209 -0.391 125.227 -0.421
202212 -0.418 125.222 -0.450
202303 -0.444 127.348 -0.470
202306 -0.399 128.729 -0.418
202309 -0.382 129.860 -0.397
202312 -0.344 129.419 -0.359
202403 -0.295 131.776 -0.302
202406 -0.181 132.554 -0.184
202409 0.116 133.029 0.118
202412 2.224 133.157 2.254
202503 2.435 134.927 2.435

Add all the adjusted book value per share together and divide the count will get our Cyclically Adjusted Book per Share.


Acorn Energy  (OTCPK:ACFN) 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.

Acorn Energy's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=15.98/0.07
=228.29

* 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 Acorn Energy was 260.94. The lowest was 0.04. And the median was 0.24.


Be Aware

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


Acorn Energy Cyclically Adjusted Book per Share Related Terms

Thank you for viewing the detailed overview of Acorn Energy's Cyclically Adjusted Book per Share provided by GuruFocus.com. Please click on the following links to see related term pages.


Acorn Energy Business Description

Industry
Traded in Other Exchanges
N/A
Address
1000 N West Street, Suite 1200, Wilmington, DE, USA, 19801
Acorn Energy Inc is a holding company that focuses on technology-driven solutions for energy infrastructure asset management. It operates through two segments namely, the PG segment and the CP segment. PG segment provides wireless remote monitoring and control systems and services for critical assets as well as Internet of Things applications which account for the majority of the revenue. CP segment is engaged in providing remote monitoring of cathodic protection systems on gas pipelines for gas utilities and pipeline companies.
Executives
Tracy Simmons Clifford officer: CFO 10 N. ADGER'S WHARF, CHARLESTON SC 29401
Jan H Loeb director, officer: President and CEO LEAP TIDE CAPITAL MANAGEMENT, 10451 MILL RUN CIRCLE SUITE 400, OWINGS MILLS MD 21117
Peter Rabover director C/O ARTKO CAPITAL LLC, 1091 E BAYAUD AVE, APT W2808, DENVER CO 80209
Gary Mohr director C/O UE SYSTEMS INC., 14 HAYES STREET, ELMSFORD NY 10532
Leap Tide Capital Acorn Llc 10 percent owner 10451 MILL RUN CIRCLE, SUITE 400, OWINGS MILLS MD 21117
Walter Iv Czarnecki officer: OmniMetrix LLC President & CEO OMNIMETRIX, LLC, 4295 HAMILTON MILL ROAD, SUITE 100, BUFORD GA 30518
Michael Osterer director C/O UE SYSTEMS INC., 14 HAYES STREET, ELMSFORD NY 10532
Woolard Edgar S Jr director C/O NEW YORK STOCK EXCHANGE, INC., 11 WALL STREET, NEW YORK NY 10005
John A Moore officer: Chief Executive Officer 403 MARSH LANE, WILMINGTON DE 19807
Christopher E Clouser director C/O ACORN ENERGY, INC., 4 WEST ROCKLAND RD, MONTCHANIN DE 19710
Mannie L Jackson director ALFRED P SLOAN FOUNDATION, 630 FIFTH AVENUE SUITE 2550, NEW YORK NY 10111-0242
Mark A Bashforth officer: CEO and President of USSI C/O ACORN ENERGY, INC., 3903 CENTERVILLE ROAD, WILMINGTON DE 19807
Andy Sassine director 82 DEVONSHIRE STREET, BOSTON MA 02109
Mckee Robert E Iii director 14927 SANDALFOOT, HOUSTON TX 77095
Deena Redding officer: President of OmniMetrix, LLC OMNIMETRIX, LLC, 5225 BELLE WOOD COURT, BUFORD GA 30518