OSG (Octave Specialty Group) Cyclically Adjusted Book per Share: $34.39 (As of Mar. 2026)


OSG Octave Specialty Group Inc OSG
62 GF Score
Price $6.67
GF Value $7.41
Valuation Modestly Undervalued
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What is Octave Specialty Group Cyclically Adjusted Book per Share?

Octave Specialty Group OSG +8.46% 62 Cyclically Adjusted Book per Share is $34.39 as of Mar. 2026. GuruFocus rates OSG with a GF Score™ of 62/100 and a GF Value™ of $7.41 (Modestly Undervalued).

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.

Octave Specialty Group's adjusted book value per share for the three months ended in Mar. 2026 was $15.831. 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 $34.39 for the trailing ten years ended in Mar. 2026.

During the past 12 months, Octave Specialty Group's average Cyclically Adjusted Book Growth Rate was -5.80% per year. During the past 3 years, the average Cyclically Adjusted Book Growth Rate was 1.70% per year. During the past 5 years, the average Cyclically Adjusted Book Growth Rate was 9.60% per year. During the past 10 years, the average Cyclically Adjusted Book Growth Rate was 15.00% 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 Octave Specialty Group was 33.10% per year. The lowest was -16.60% per year. And the median was 2.40% per year.

As of today (2026-06-29), Octave Specialty Group's current stock price is $6.67. Octave Specialty Group's Cyclically Adjusted Book per Share for the quarter that ended in Mar. 2026 was $34.39. Octave Specialty Group's Cyclically Adjusted PB Ratio of today is 0.19.

During the past 13 years, the highest Cyclically Adjusted PB Ratio of Octave Specialty Group was 2.16. The lowest was 0.11. And the median was 0.62.


Octave Specialty Group  (NYSE:OSG) 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.

Octave Specialty Group's Cyclically Adjusted PB Ratio of today is calculated as

Cyclically Adjusted PB Ratio=Share Price/Cyclically Adjusted Book per Share
=6.67/34.39
=0.19

* 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 Octave Specialty Group was 2.16. The lowest was 0.11. And the median was 0.62.


Be Aware

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


Octave Specialty Group Cyclically Adjusted Book per Share Related Terms


Octave Specialty Group Cyclically Adjusted Book per Share Historical Data

* Premium members only.

The historical data trend for Octave Specialty Group'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.

Octave Specialty Group Cyclically Adjusted Book per Share Chart

Octave Specialty Group 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 27.31 32.98 36.15 36.75 34.68

Octave Specialty Group 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 36.52 35.97 35.64 34.68 34.39

OSG vs MBI, JRVR, FACO: Cyclically Adjusted Book per Share Comparison

For the Insurance - Specialty subindustry, Octave Specialty Group'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.


Octave Specialty Group Cyclically Adjusted PB Ratio vs Insurance Industry

For the Insurance industry and Financial Services sector, Octave Specialty Group's Cyclically Adjusted PB Ratio distribution charts can be found below:

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


OSG
62GF Score
Octave Specialty Group Inc OSG
Cyclically Adjusted Book per Share is just one metric. See GF Score™, valuation, warning signs, and more.
View Full Analysis

Octave Specialty Group 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, Octave Specialty Group'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)
=15.831/330.2130*330.2130
=15.831

Current CPI (Mar. 2026) = 330.2130.

Octave Specialty Group Quarterly Data

Book Value per Share CPI Adj_Book
201606 39.804 241.018 54.535
201609 42.321 241.428 57.885
201612 37.923 241.432 51.868
201703 35.924 243.801 48.657
201706 36.996 244.955 49.873
201709 33.326 246.819 44.586
201712 30.505 246.524 40.861
201803 40.701 249.554 53.856
201806 39.703 251.989 52.028
201809 38.773 252.439 50.719
201812 35.116 251.233 46.155
201903 35.631 254.202 46.285
201906 32.777 256.143 42.255
201909 34.438 256.759 44.290
201912 32.422 256.974 41.662
202003 21.888 258.115 28.002
202006 23.337 257.797 29.892
202009 22.594 260.280 28.665
202012 23.576 260.474 29.888
202103 23.010 264.877 28.686
202106 23.010 271.696 27.966
202109 22.920 274.310 27.591
202112 22.417 278.802 26.551
202203 19.637 287.504 22.554
202206 17.445 296.311 19.441
202209 22.440 296.808 24.966
202212 27.838 296.797 30.972
202303 27.669 301.836 30.270
202306 27.591 305.109 29.861
202309 27.995 307.789 30.035
202312 30.128 306.746 32.433
202403 30.182 312.332 31.910
202406 30.249 314.175 31.793
202409 30.879 315.301 32.339
202412 17.167 315.605 17.962
202503 18.356 319.799 18.954
202506 18.531 322.561 18.971
202509 18.059 324.800 18.360
202512 15.905 324.054 16.207
202603 15.831 330.213 15.831

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 $34.39 mean?
Octave Specialty Group (OSG) has a Cyclically Adjusted Book per Share of $34.39 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 Octave Specialty Group and its competitors.
Is Octave Specialty Group's Cyclically Adjusted Book per Share too high?
Octave Specialty Group's current Cyclically Adjusted Book per Share is $34.39. Overall, Octave Specialty Group has a GF Score™ of 62/100 and is considered Modestly Undervalued, reflecting its overall financial health beyond just this single metric.
How does Octave Specialty Group's Cyclically Adjusted Book per Share compare to MBI and JRVR?
Octave Specialty Group's Cyclically Adjusted Book per Share of $34.39 can be compared against companies in the Insurance 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 Insurance company?
A good Cyclically Adjusted Book per Share depends on the Insurance 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 Octave Specialty Group and its competitors. Octave Specialty Group's current Cyclically Adjusted Book per Share is $34.39. However, context matters — high-growth companies often justify higher valuations. Always evaluate alongside other metrics like GF Score™ and GF Value™.
Is Octave Specialty Group stock overvalued right now?
Based on GuruFocus' analysis, Octave Specialty Group (OSG) is currently considered Modestly Undervalued. The stock's GF Value™ is $7.41, compared to a current price of $6.67 — trading 10% below its estimated fair value. The current Cyclically Adjusted Book per Share is $34.39. Octave Specialty Group's overall GF Score™ is 62/100. 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 Octave Specialty Group (OSG), the current Cyclically Adjusted Book per Share is $34.39 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.

Is Octave Specialty Group (OSG) Overvalued in 2026?

Based on GuruFocus' analysis, Octave Specialty Group stock appears to be undervalued. The current stock price of $6.67 is trading 10% below its estimated GF Value™ of $7.41. GuruFocus considers Octave Specialty Group to be Modestly Undervalued.

Key valuation signals for OSG:

  • Cyclically Adjusted Book per Share: $34.39
  • GF Value™: $7.41 vs. price of $6.67 (10% below fair value)
  • GF Score™: 62/100

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


Octave Specialty Group Business Description

Other Exchanges FGPN:Germany
Address 40 Wall Street, New York, NY, USA, 10005
Octave Specialty Group Inc is a world-wide specialty insurance firm that provides strategic direction, risk oversight, data and technology solutions, and capital support to MGA businesses operating across the U.S., U.K., and Bermuda. The company operates in two segments: Specialty Property and Casualty Insurance and ID.
62GF Score

Get the complete analysis for OSG

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

$6.67
Price
$7.41
GF Value