OSG (Octave Specialty Group) Cyclically Adjusted PB Ratio: (As of Aug. 08, 2026)

Author: Vera Yuan Vera Yuan
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Director of Data and Quant Analytics at GuruFocus
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OSG Octave Specialty Group Inc OSG
63 GF Score
Price $4.93
GF Value $6.84
Valuation Modestly Undervalued
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What is Octave Specialty Group Cyclically Adjusted PB Ratio?

Shiller PE for Stocks: The True Measure of Stock Valuation


Octave Specialty Group  (NYSE:OSG) Cyclically Adjusted PB Ratio Explanation

Compared with the regular PB Ratio, which works poorly for cyclical businesses, the Cyclically Adjusted PB Ratio smoothed out the fluctuations of book value during business cycles. Therefore it is more accurate in reflecting the valuation of the company.

If a company has consistent business performance, the Cyclically Adjusted PB Ratio should give similar results to regular PB Ratio.


Octave Specialty Group Cyclically Adjusted PB Ratio Related Terms


Octave Specialty Group Cyclically Adjusted PB Ratio Historical Data

* Premium members only.

The historical data trend for Octave Specialty Group's Cyclically Adjusted PB Ratio 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 PB Ratio Chart

Octave Specialty Group Annual Data
Trend Dec16 Dec17 Dec18 Dec19 Dec20 Dec21 Dec22 Dec23 Dec24 Dec25
Cyclically Adjusted PB Ratio
Get a 7-Day Free Trial Premium Member Only Premium Member Only 0.59 0.53 0.46 0.34 0.22

Octave Specialty Group Quarterly Data
Sep21 Dec21 Mar22 Jun22 Sep22 Dec22 Mar23 Jun23 Sep23 Dec23 Mar24 Jun24 Sep24 Dec24 Mar25 Jun25 Sep25 Dec25 Mar26 Jun26
Cyclically Adjusted PB Ratio 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 0.20 0.23 0.22 0.14 0.00

OSG vs JRVR, MBI, FACO: Cyclically Adjusted PB Ratio 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
63GF Score
Octave Specialty Group Inc OSG
Cyclically Adjusted PB Ratio is just one metric. See GF Score™, valuation, warning signs, and more.
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Octave Specialty Group Cyclically Adjusted PB Ratio Calculation

Like the Shiller PE Ratio, the Cyclically Adjusted PB Ratio takes the Book Value per Share from the past 10 years, adjusts it for inflation, and then calculates the average. This average is then used for the P/B calculation. Because it considers this 10-year average, it's often referred to as the CAPB Ratio.

The Shiller PE Ratio was first used by professor Robert Shiller to measure the valuation of the overall market. The similar calculation is applied by GuruFocus to calculate the Cyclically Adjusted PB Ratio.

Octave Specialty Group's Cyclically Adjusted Book per Share for the quarter that ended in Jun. 2026 is calculated as:

For example, Octave Specialty Group'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)
=15.394/333.9520*333.9520
=15.394

Current CPI (Jun. 2026) = 333.9520.

Octave Specialty Group Quarterly Data

Book Value per Share CPI Adj_Book
201609 42.321 241.428 58.540
201612 37.923 241.432 52.456
201703 35.924 243.801 49.208
201706 36.996 244.955 50.437
201709 33.326 246.819 45.091
201712 30.505 246.524 41.323
201803 40.701 249.554 54.466
201806 39.703 251.989 52.617
201809 38.773 252.439 51.293
201812 35.116 251.233 46.678
201903 35.631 254.202 46.809
201906 32.777 256.143 42.734
201909 34.438 256.759 44.792
201912 32.422 256.974 42.134
202003 21.888 258.115 28.319
202006 23.337 257.797 30.231
202009 22.594 260.280 28.989
202012 23.576 260.474 30.227
202103 23.010 264.877 29.011
202106 23.010 271.696 28.282
202109 22.920 274.310 27.903
202112 22.417 278.802 26.851
202203 19.637 287.504 22.809
202206 17.445 296.311 19.661
202209 22.440 296.808 25.248
202212 27.838 296.797 31.323
202303 27.669 301.836 30.613
202306 27.591 305.109 30.199
202309 27.995 307.789 30.375
202312 30.128 306.746 32.800
202403 30.182 312.332 32.271
202406 30.249 314.175 32.153
202409 30.879 315.301 32.706
202412 17.167 315.605 18.165
202503 18.356 319.799 19.168
202506 18.531 322.561 19.185
202509 18.059 324.800 18.568
202512 15.905 324.054 16.391
202603 15.831 330.213 16.010
202606 15.394 333.952 15.394

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

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 $4.93 is trading 27.9% below its estimated GF Value™ of $6.84. GuruFocus considers Octave Specialty Group to be Modestly Undervalued.

Key valuation signals for OSG:

  • Cyclically Adjusted PB Ratio:
  • GF Value™: $6.84 vs. price of $4.93 (27.9% below fair value)
  • GF Score™: 63/100

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.
63GF Score

Get the complete analysis for OSG

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

$4.93
Price
$6.84
GF Value