TERRF (Terna SpA) Cyclically Adjusted Book per Share: $3.46 (As of Jun. 2026)

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TERRF Terna SpA TERRF
89 GF Score
Price $10.95
GF Value $10.97
Valuation Fairly Valued
! 3 Warning Signs
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What is Terna SpA Cyclically Adjusted Book per Share?

Terna SpA TERRF 89 Cyclically Adjusted Book per Share is $3.46 as of Jun. 2026. GuruFocus rates TERRF with a GF Score™ of 89/100 and a GF Value™ of $10.97 (Fairly Valued). The stock has 3 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.

Terna SpA's adjusted book value per share for the three months ended in Jun. 2026 was $4.954. 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 $3.46 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Terna SpA's average Cyclically Adjusted Book Growth Rate was -100.00% 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 9.60% 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 Terna SpA was 11.20% per year. The lowest was 4.10% per year. And the median was 8.15% per year.

As of today (2026-07-31), Terna SpA's current stock price is $10.95. Terna SpA's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was $3.46. Terna SpA's Cyclically Adjusted PB Ratio of today is 3.16.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Terna SpA was 3.97. The lowest was 2.61. And the median was 3.19.


Terna SpA  (OTCPK:TERRF) 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.

Terna SpA's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=10.95/3.46
=3.16

* 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 Terna SpA was 3.97. The lowest was 2.61. And the median was 3.19.


Be Aware

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


Terna SpA Cyclically Adjusted Book per Share Related Terms


Terna SpA Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Terna SpA'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.

Terna SpA Cyclically Adjusted Book per Share Chart

Terna SpA 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 2.07 2.56 2.67 3.03 3.13

Terna SpA Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
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 3.22 3.25 3.13 3.31 3.46

TERRF vs NEE, SO, DUK: Cyclically Adjusted Book per Share Comparison

For the Utilities - Regulated Electric subindustry, Terna SpA'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.


Terna SpA Cyclically Adjusted PB Ratio vs Utilities - Regulated Industry

For the Utilities - Regulated industry and Utilities sector, Terna SpA's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


TERRF
89GF Score
Terna SpA TERRF
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Terna SpA 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, Terna SpA's adjusted Book Value per Share data for the three months ended in Jun. 2026 was:

Adj_Book= Book Value per Share /CPI of Jun. 2026 (Change)*Current CPI (Jun. 2026)
=4.954/126.4000*126.4000
=4.954

Current CPI (Jun. 2026) = 126.4000.

Terna SpA Quarterly Data

Book Value per Share CPI Adj_Book
201609 1.968 100.100 2.485
201612 1.855 100.300 2.338
201703 1.979 101.000 2.477
201706 2.024 101.100 2.531
201709 2.250 101.200 2.810
201712 2.239 101.200 2.797
201803 2.440 101.800 3.030
201806 2.233 102.400 2.756
201809 2.342 102.600 2.885
201812 2.275 102.300 2.811
201903 2.340 102.800 2.877
201906 2.228 103.100 2.732
201909 2.241 102.900 2.753
201912 2.316 102.800 2.848
202003 2.380 102.900 2.924
202006 2.334 102.900 2.867
202009 2.541 102.300 3.140
202012 2.647 102.600 3.261
202103 2.723 103.700 3.319
202106 2.663 104.200 3.230
202109 2.720 104.900 3.277
202112 2.636 106.600 3.126
202203 3.282 110.400 3.758
202206 3.082 112.500 3.463
202209 3.009 114.200 3.330
202212 3.244 119.000 3.446
202303 3.380 118.800 3.596
202306 3.307 119.700 3.492
202309 3.372 120.300 3.543
202312 3.438 119.700 3.630
202403 3.564 120.200 3.748
202406 3.898 120.700 4.082
202409 4.141 121.200 4.319
202412 3.928 121.200 4.097
202503 4.196 122.500 4.330
202506 4.315 122.700 4.445
202509 4.546 123.100 4.668
202512 4.549 122.600 4.690
202603 5.131 124.560 5.207
202606 4.954 126.400 4.954

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 $3.46 mean?
Terna SpA (TERRF) has a Cyclically Adjusted Book per Share of $3.46 as of Jun. 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 Terna SpA and its competitors.
Is Terna SpA's Cyclically Adjusted Book per Share too high?
Terna SpA's current Cyclically Adjusted Book per Share is $3.46. Overall, Terna SpA has a GF Score™ of 89/100 and is considered Fairly Valued, reflecting its overall financial health beyond just this single metric.
How does Terna SpA's Cyclically Adjusted Book per Share compare to NEE and SO?
Terna SpA's Cyclically Adjusted Book per Share of $3.46 can be compared against companies in the Utilities - Regulated 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 Utilities - Regulated company?
A good Cyclically Adjusted Book per Share depends on the Utilities - Regulated 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 Terna SpA and its competitors. Terna SpA's current Cyclically Adjusted Book per Share is $3.46. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Terna SpA stock overvalued right now?
Based on GuruFocus' analysis, Terna SpA (TERRF) is currently considered Fairly Valued. The stock's GF Value™ is $10.97, compared to a current price of $10.95 — trading 0.2% below its estimated fair value. The current Cyclically Adjusted Book per Share is $3.46. Terna SpA's overall GF Score™ is 89/100 with 3 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 Terna SpA (TERRF), the current Cyclically Adjusted Book per Share is $3.46 as of Jun. 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.

Is Terna SpA (TERRF) Overvalued in 2026?

Based on GuruFocus' analysis, Terna SpA stock appears to be undervalued. The current stock price of $10.95 is trading 0.2% below its estimated GF Value™ of $10.97. GuruFocus considers Terna SpA to be Fairly Valued.

Key valuation signals for TERRF:

  • Cyclically Adjusted Book per Share: $3.46
  • GF Value™: $10.97 vs. price of $10.95 (0.2% below fair value)
  • GF Score™: 89/100 with 3 warning signs

No single metric tells the full story. See the TERRF stock analysis page for a complete view including 30-year financials, guru trades, and insider activity.


Terna SpA Business Description

Address Viale Egidio Galbani 70, Rome, ITA, 00156
Terna SpA is an electricity transmission system operator that owns virtually all of the Italian National Transmission Grid. With a monopoly under an Italian government license, Terna transmits and dispatches electricity throughout the country. It is also responsible for the planning, construction, and maintenance of the nation's electrical grid. Terna segments its operations into its Regulated Activities, Non-Regulated Activities, and International Activities. The company generates the vast majority of its revenue from charging transmission fees as a part of its Regulated Activities. Under its Non-Regulated Activities, Terna mainly produces and sells electricity transformers. The company has also made efforts to expand its operations into Italy's neighboring countries and North Africa.
89GF Score

Get the complete analysis for TERRF

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

$10.95
Price
$10.97
GF Value