Syn hf (OISE:SYN) Cyclically Adjusted Book per Share: kr42.51 (As of Jun. 2026)

Author: Vera Yuan Vera Yuan
Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
Focused on building reliable datasets, financial models, and research tools for value-minded investors. Committed to turning complex data into practical guidance for value-investing and long-term wealth.
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Charlie Tian
Charlie Tian
Founder & CEO of GuruFocus
Dr. Charlie Tian is the founder and CEO of GuruFocus.com, a leading global investment research platform established in 2004. With a Ph.D. in physics, Dr. Tian transitioned from science to finance, applying a data-driven, disciplined approach to value investing.

OISE:SYN Syn hf OISE:SYN
51 GF Score
Price kr19.80
GF Value kr30.42
Valuation Possible Value Trap
! 6 Warning Signs
View Full Analysis

What is Syn hf Cyclically Adjusted Book per Share?

Syn hf OISE:SYN 51 Cyclically Adjusted Book per Share is kr42.51 as of Jun. 2026. GuruFocus rates OISE:SYN with a GF Score™ of 51/100 and a GF Value™ of kr30.42 (Possible Value Trap). 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.

Syn hf's adjusted book value per share for the three months ended in Jun. 2026 was kr30.539. 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 kr42.51 for the trailing ten years ended in Jun. 2026.

During the past 12 months, Syn hf's average Cyclically Adjusted Book Growth Rate was 3.70% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 6.50% 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 Syn hf was 8.70% per year. The lowest was 6.50% per year. And the median was 7.60% per year.

As of today (2026-09-04), Syn hf's current stock price is kr19.80. Syn hf's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 was kr42.51. Syn hf's Cyclically Adjusted PB Ratio of today is 0.47.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Syn hf was 2.16. The lowest was 0.41. And the median was 1.16.


Syn hf  (OISE:SYN) 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.

Syn hf's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=19.80/42.51
=0.47

* 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 Syn hf was 2.16. The lowest was 0.41. And the median was 1.16.


Be Aware

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


Syn hf Cyclically Adjusted Book per Share Related Terms


Syn hf Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Syn hf'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.

Syn hf Cyclically Adjusted Book per Share Chart

Syn hf 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 31.21 34.01 37.89 40.08 41.07

Syn hf 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 41.01 40.87 41.07 41.84 42.51

OISE:SYN vs VZ, TMUS, T: Cyclically Adjusted Book per Share Comparison

For the Telecom Services subindustry, Syn hf'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.


Syn hf Cyclically Adjusted PB Ratio vs Telecommunication Services Industry

For the Telecommunication Services industry and Communication Services sector, Syn hf's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


OISE:SYN
51GF Score
Syn hf OISE:SYN
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Syn hf 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, Syn hf'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)
=30.539/161.3100*161.3100
=30.539

Current CPI (Jun. 2026) = 161.3100.

Syn hf Quarterly Data

Book Value per Share CPI Adj_Book
201609 26.051 102.457 41.015
201612 26.460 102.562 41.616
201703 27.278 102.768 42.817
201706 28.005 103.496 43.649
201709 26.100 103.871 40.533
201712 34.175 104.481 52.763
201803 34.415 105.600 52.571
201806 34.422 106.206 52.281
201809 35.275 106.727 53.316
201812 36.118 108.388 53.753
201903 37.535 108.702 55.700
201906 36.658 109.758 53.876
201909 36.807 109.922 54.014
201912 29.679 110.588 43.291
202003 28.491 111.019 41.397
202006 28.286 112.667 40.498
202009 28.309 113.772 40.137
202012 28.839 114.542 40.614
202103 27.688 115.833 38.559
202106 27.270 117.451 37.453
202109 30.791 118.723 41.836
202112 35.543 120.398 47.621
202203 32.943 123.555 43.009
202206 16.160 127.809 20.396
202209 35.610 129.810 44.251
202212 35.240 131.901 43.097
202303 31.355 135.674 37.280
202306 34.701 139.150 40.227
202309 36.647 140.147 42.181
202312 40.809 142.125 46.318
202403 40.738 144.910 45.349
202406 43.155 147.267 47.270
202409 39.940 147.722 43.614
202412 34.937 148.871 37.856
202503 33.568 150.393 36.005
202506 32.901 153.367 34.605
202509 31.977 153.800 33.538
202512 32.506 155.560 33.708
202603 31.367 158.510 31.921
202606 30.539 161.310 30.539

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 kr42.51 mean?
Syn hf (OISE:SYN) has a Cyclically Adjusted Book per Share of kr42.51 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 Syn hf and its competitors.
Is Syn hf's Cyclically Adjusted Book per Share too high?
Syn hf's current Cyclically Adjusted Book per Share is kr42.51. Overall, Syn hf has a GF Score™ of 51/100 and is considered Possible Value Trap, reflecting its overall financial health beyond just this single metric.
How does Syn hf's Cyclically Adjusted Book per Share compare to VZ and TMUS?
Syn hf's Cyclically Adjusted Book per Share of kr42.51 can be compared against companies in the Telecommunication Services 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 Telecommunication Services company?
A good Cyclically Adjusted Book per Share depends on the Telecommunication Services 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 Syn hf and its competitors. Syn hf's current Cyclically Adjusted Book per Share is kr42.51. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Syn hf stock overvalued right now?
Based on GuruFocus' analysis, Syn hf (OISE:SYN) is currently considered Possible Value Trap. The stock's GF Value™ is kr30.42, compared to a current price of kr19.80 — trading 34.9% below its estimated fair value. The current Cyclically Adjusted Book per Share is kr42.51. Syn hf's overall GF Score™ is 51/100 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 Syn hf (OISE:SYN), the current Cyclically Adjusted Book per Share is kr42.51 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 Syn hf (OISE:SYN) Overvalued in 2026?

Based on GuruFocus' analysis, Syn hf stock appears to be undervalued. The current stock price of kr19.80 is trading 34.9% below its estimated GF Value™ of kr30.42. GuruFocus considers Syn hf to be Possible Value Trap.

Key valuation signals for OISE:SYN:

  • Cyclically Adjusted Book per Share: kr42.51
  • GF Value™: kr30.42 vs. price of kr19.80 (34.9% below fair value)
  • GF Score™: 51/100 with 6 warning signs

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


Syn hf Business Description

Address Suourlandsbraut 8, Reykjavik, ISL, 108
Syn hf is an Iceland based Telecommunication and Media company. The company generates revenue from sales of Fixed line, Hosting and operating solutions, Retail sale and Other revenue which includes services revenue.
51GF Score

Get the complete analysis for OISE:SYN

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

kr19.80
Price
kr30.42
GF Value